CN219979664U - Cold plate, cylindrical battery pack and electric vehicle - Google Patents
Cold plate, cylindrical battery pack and electric vehicle Download PDFInfo
- Publication number
- CN219979664U CN219979664U CN202320774430.3U CN202320774430U CN219979664U CN 219979664 U CN219979664 U CN 219979664U CN 202320774430 U CN202320774430 U CN 202320774430U CN 219979664 U CN219979664 U CN 219979664U
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- Prior art keywords
- cylindrical battery
- cold plate
- cooling fluid
- cooling
- hole
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- 239000012809 cooling fluid Substances 0.000 claims abstract description 36
- 239000003292 glue Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 abstract description 43
- 230000000694 effects Effects 0.000 abstract description 7
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 9
- 230000004308 accommodation Effects 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a cold plate, a cylindrical battery pack and an electric vehicle, wherein the cold plate comprises a shell, the shell is provided with a plurality of containing holes, the containing holes are used for containing cylindrical batteries, cooling fluid is arranged in the shell, and the cooling fluid can completely surround the hole walls of the containing holes; according to the cooling plate, the plurality of containing holes for containing the cylindrical batteries to be cooled are formed in the shell, the cylindrical batteries to be cooled are placed in the containing holes when the cooling plate is used, the containing holes can surround the side surfaces of the cylindrical batteries to be cooled by 360 degrees, namely the side surfaces of the cylindrical batteries are completely surrounded by the cooling plate, and as cooling fluid capable of absorbing and conducting heat is filled in the shell, the cooling fluid completely surrounds the wall of the containing holes by 360 degrees, namely the cooling fluid completely surrounds the cylindrical batteries to be cooled by 360 degrees, so that the contact area of the cooling plate and the cylindrical batteries to be cooled is greatly increased, heat generated by the cylindrical batteries can be rapidly led out, and the cooling effect of the cooling plate is improved.
Description
Technical Field
The utility model relates to the field of heat dissipation of power cylindrical batteries, in particular to a cold plate, a cylindrical battery pack and an electric vehicle.
Background
The requirements of the pure electric automobile users on the endurance mileage are higher and higher, so that the energy of the battery cells is larger and larger, and the number of the battery cells is increased; meanwhile, the requirement on the quick charge time is higher and higher, the quick charge multiplying power of the cylindrical battery is larger and larger, and the challenges of thermal management and thermal safety of the cylindrical battery are larger and larger. The occurrence of multiple spontaneous combustion events indicates that the problem of thermal runaway diffusion of the cylindrical battery is urgently needed to be solved.
Some solutions for thermal runaway of cylindrical batteries are currently available in the market, for example, chinese patent application publication No. CN115483475a discloses a liquid-cooled cylindrical battery pack, which uses a conventional serpentine plate scheme to dissipate heat, but has a smaller wrap angle to the cylindrical batteries, a limited contact area between the cylindrical batteries and the serpentine plate, and the same serpentine plate can only cool two rows of cylindrical batteries, so that the thermal runaway diffusion risk between the cylindrical batteries in the same row is larger.
Disclosure of Invention
The utility model aims to solve the problems that the existing cylindrical battery cooling plate is not ideal in cooling effect and is easy to cause thermal runaway diffusion of the cylindrical battery, and provides a cooling plate, a cylindrical battery pack and an electric vehicle.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a cold plate, includes the casing, the casing sets up a plurality of accommodation holes, the accommodation hole is used for holding the cylinder battery, the inside cooling fluid that is equipped with of casing, cooling fluid can be fully encircleed the pore wall of accommodation hole.
According to the cooling plate, the plurality of containing holes for containing the cylindrical batteries to be cooled are formed in the shell, the cylindrical batteries to be cooled are placed in the containing holes when the cooling plate is used, the containing holes can surround the side surfaces of the cylindrical batteries to be cooled by 360 degrees, namely the side surfaces of the cylindrical batteries are completely surrounded by the cooling plate, and as cooling fluid capable of absorbing and conducting heat is filled in the shell, the cooling fluid completely surrounds the wall of the containing holes by 360 degrees, namely the cooling fluid completely surrounds the cylindrical batteries to be cooled by 360 degrees, so that the contact area of the cooling plate and the cylindrical batteries to be cooled is greatly increased, heat generated by the cylindrical batteries can be rapidly led out, and the cooling effect of the cooling plate is improved. The cold plate disclosed by the utility model not only can protect the cylindrical battery from overheat damage, but also can prolong the service life and stability of the cylindrical battery and reduce the risk of thermal runaway diffusion of the cylindrical battery.
As a preferable scheme of the utility model, the accommodating hole is arranged on the outer surface of the shell, and a cavity is formed between the hole wall of the accommodating hole and the outer surface of the shell, and the cavity is used for accommodating the cooling fluid.
A cavity for placing cooling fluid is formed between the hole wall of the accommodating hole and the outer surface of the shell, so that the cooling fluid can be better contacted with the hole wall of the accommodating hole, and the cooling effect is improved.
As a preferable mode of the utility model, a communicating cavity is formed between the hole wall of the accommodating hole and the outer surface of the shell.
The pore wall of the accommodating hole is communicated with the cavity formed by the outer surface of the shell, and the cooling fluid flows in the formed cavity, so that the cooling effect is better.
As a preferable scheme of the utility model, two opposite side surfaces of the shell adopt a serpentine structure, and the cambered surface curvature of the serpentine structure is consistent with that of the accommodating hole.
The cambered surface curvature of the serpentine structure is consistent with the accommodating hole, so that the space of the cold plate can be saved.
As a preferable mode of the present utility model, a plurality of micro-channels are provided in the housing, the micro-channels communicate with adjacent cavities, and the cooling fluid can flow in the micro-channels.
The micro-channels in the cold plate are filled with cooling fluid, so that the heat exchange efficiency of the cold plate can be enhanced, the utilization rate of cooling materials is improved, the flow resistance of the cold plate is reduced, the pressure loss of the cooling materials is reduced, the micro-channels are newly formed into a plurality of flow channels of the cooling fluid in the cold plate, and the structural stability and durability of the cold plate are improved.
As a preferable scheme of the utility model, the micro-channels are arranged in parallel or staggered, and the micro-channels are communicated with each other.
The cooling plate is internally provided with a plurality of parallel or staggered micro-channels which are communicated with each other, and cooling fluid can pulsate along the micro-channels which are communicated with each other, so that hot spot generation is reduced, cooling efficiency is improved, and heat exchange capacity of the cooling plate is enhanced.
As a preferred embodiment of the present utility model, the receiving holes are arranged in a staggered manner on the housing.
The containing holes are arranged in staggered mode on the shell, a curved triangle is formed between every two adjacent containing holes, the space of the cold plate can be utilized to the maximum extent, the arrangement mode is adopted, the space of the cylindrical battery pack is not required to be additionally occupied, more cylindrical batteries can be cooled under the same volume, the cooling efficiency is improved, the phenomenon of local overheating or supercooling can be avoided due to the even distribution of the containing holes, the cylindrical batteries are protected from being damaged, and the scheme can enable the volume and the weight of the cylindrical battery pack to be smaller, so that the cylindrical battery pack is more suitable for the application of the power cylindrical batteries.
The utility model provides a cylinder battery package, includes the cylinder battery, the cylinder battery set up in above-mentioned cold plate in the accommodation hole, the pore wall in accommodation hole with the lateral wall laminating of cylinder battery.
The hole wall of the accommodating hole is attached to the side wall of the cylindrical battery, so that the heat dissipation efficiency of the cylindrical battery can be improved, the temperature of the cylindrical battery can be reduced better, and the service life of the cylindrical battery can be prolonged; the volume of the cylindrical battery pack can be reduced, and the space is saved; the structural stability of the cylindrical battery can be enhanced, the deformation and the breakage of the cylindrical battery are prevented, and the safety of the cylindrical battery is improved.
As a preferable scheme of the utility model, heat-conducting glue is arranged between the hole wall of the accommodating hole and the outer surface of the cylindrical battery.
The heat conducting glue is arranged between the hole wall of the accommodating hole and the outer surface of the cylindrical battery, and the heat conducting capability of the heat conducting glue is stronger than that of air, so that gaps can be prevented from occurring between the cylindrical battery and the side wall of the accommodating hole, the cylindrical battery is prevented from being overheated locally, and the heat resistance of the cylindrical battery pack is enhanced.
An electric vehicle comprises the cylindrical battery pack.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. according to the cooling plate, the plurality of containing holes for containing the cylindrical batteries to be cooled are formed in the shell, the cylindrical batteries to be cooled are placed in the containing holes when the cooling plate is used, the containing holes can surround the side surfaces of the cylindrical batteries to be cooled by 360 degrees, namely the side surfaces of the cylindrical batteries are completely surrounded by the cooling plate, and as cooling fluid capable of absorbing and conducting heat is filled in the shell, the cooling fluid completely surrounds the wall of the containing holes by 360 degrees, namely the cooling fluid completely surrounds the cylindrical batteries to be cooled by 360 degrees, so that the contact area of the cooling plate and the cylindrical batteries to be cooled is greatly increased, heat generated by the cylindrical batteries can be rapidly led out, and the cooling effect of the cooling plate is improved. The cold plate disclosed by the utility model not only can protect the cylindrical battery from overheat damage, but also can prolong the service life and stability of the cylindrical battery and reduce the risk of thermal runaway diffusion of the cylindrical battery.
2. The micro-channels in the cold plate are filled with cooling fluid, so that the heat exchange efficiency of the cold plate can be enhanced, the utilization rate of cooling materials is improved, the flow resistance of the cold plate is reduced, the pressure loss of the cooling materials is reduced, the micro-channels are newly formed into a plurality of flow channels of the cooling fluid in the cold plate, and the structural stability and the durability of the cold plate are improved; the cooling plate is internally provided with a plurality of parallel or staggered micro-channels which are communicated with each other, and cooling fluid can pulsate along the micro-channels which are communicated with each other, so that hot spot generation is reduced, cooling efficiency is improved, and heat exchange capacity of the cooling plate is enhanced.
3. The containing holes are arranged in staggered mode on the shell, a curved triangle is formed between every two adjacent containing holes, the space of the cold plate can be utilized to the maximum extent, the arrangement mode is adopted, the space of the cylindrical battery pack is not required to be additionally occupied, more cylindrical batteries can be cooled under the same volume, the cooling efficiency is improved, the phenomenon of local overheating or supercooling can be avoided due to the even distribution of the containing holes, the cylindrical batteries are protected from being damaged, and the scheme can enable the volume and the weight of the cylindrical battery pack to be smaller, so that the cylindrical battery pack is more suitable for the application of the power cylindrical batteries.
4. The heat conducting glue is arranged between the hole wall of the accommodating hole and the outer surface of the cylindrical battery, and the heat conducting capability of the heat conducting glue is stronger than that of air, so that gaps can be prevented from occurring between the cylindrical battery and the side wall of the accommodating hole, the cylindrical battery is prevented from being overheated locally, and the heat resistance of the cylindrical battery pack is enhanced.
Drawings
FIG. 1 is a schematic diagram of a cold plate structure;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a sectional view in the direction B-B in FIG. 1;
FIG. 4 is a top view of a cold plate;
fig. 5 is a schematic view of a cylindrical battery pack structure.
Reference numerals in the drawings: 1-shell, 11-accommodation hole, 12-microchannel, 2-cylindrical battery.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1 to 4, a cooling plate is provided, in which a cooling fluid capable of absorbing and transmitting heat, i.e., a cooling gas or a cooling liquid capable of absorbing and transmitting heat, is filled in a housing 1. The cooling fluid is able to flow inside the housing 1, taking away the heat generated by the cylindrical battery 2 to be cooled. A common material of the housing 1 is a material with a high coefficient of thermal conductivity, such as copper (alloy) or aluminum (alloy). Compared with the traditional serpentine cold plate, the traditional serpentine cold plate has smaller wrap angle of the cylindrical battery to be cooled, the cold plate is characterized in that the shell 1 is provided with a plurality of containing holes 11, the containing holes 11 are formed in the outer surface of the shell 1, a communicating cavity for containing cooling fluid is formed between the hole wall of the containing holes 11 and the outer surface of the shell 1, and thus the cooling fluid can freely flow in the shell 1, the degree of temperature difference in the cylindrical battery assembly is reduced, and the heat dissipation efficiency is improved. It is envisioned that the accommodating hole 11 in this embodiment may be a through hole penetrating the housing 1 or a blind hole not penetrating the housing 1, and in general, the accommodating hole 11 is integrally formed with the housing 1. The opposite outer sides of the housing 1 have a serpentine structure, as shown in fig. 1, whose cambered curvature corresponds to that of the receiving hole 11.
When the cooling device is used, the cylindrical battery to be cooled is placed in the accommodating hole 11, the accommodating hole 11 can surround the side surface of the cylindrical battery to be cooled by 360 degrees, namely, the side surface of the cylindrical battery is completely surrounded by the cooling plate, and as cooling fluid capable of absorbing and conducting heat is filled in the shell 1, the wall of the accommodating hole 11 is completely surrounded by 360 degrees, namely, the cylindrical battery to be cooled can be completely surrounded by 360 degrees, the contact area of the cooling plate and the cylindrical battery to be cooled is greatly increased, the heat generated by the cylindrical battery can be rapidly led out, and the cooling effect of the cooling plate is improved. The cold plate disclosed by the utility model not only can protect the cylindrical battery from overheat damage, but also can prolong the service life and stability of the cylindrical battery and reduce the risk of thermal runaway diffusion of the cylindrical battery.
In order to better utilize the space of the cold plate, more cylindrical batteries can be cooled at the same volume. In this embodiment, the accommodating holes 11 are arranged in staggered manner on the housing 1, as shown in fig. 1, and a curved triangle is formed between the adjacent three accommodating holes 11, so that the space of the cold plate can be utilized to the maximum.
In order to further improve the cooling efficiency of the cold plate of the present utility model, a plurality of micro-channels 12 are provided in the housing 1, the micro-channels 12 communicate with adjacent cavities, the micro-channels 12 are generally between several micrometers and hundreds of micrometers in size, the cooling fluid can flow in the micro-channels 12, the micro-channels 12 are arranged in parallel or staggered, and the micro-channels 12 are communicated with each other, so that the cooling fluid can pulsate along the micro-channels 12 communicated with each other, thereby reducing hot spots. Meanwhile, as the micro-channels 12 are added, the specific surface area of the cold plate is greatly increased, more contact area can be provided for absorbing and conducting heat, the cooling efficiency of the cold plate is improved, and the heat exchange capacity of the cold plate is enhanced; the micro-channels 12 create multiple cooling fluid flow channels within the cold plate that improve the structural stability and durability of the cold plate.
Example 2
As shown in fig. 5, the present utility model further provides a cylindrical battery pack, in which the cylindrical battery 2 to be cooled is placed in the cold plate provided in embodiment 1, in this embodiment, the hole wall of the accommodating hole 11 can be attached to the outer side wall of the cylindrical battery 2, so that the heat dissipation efficiency of the cylindrical battery 2 can be improved, the temperature of the cylindrical battery 2 can be reduced better, and the service life of the cylindrical battery 2 can be prolonged. The volume of this cylinder battery package can also be reduced to setting like this, saves space. Because the accommodation hole 11 tightly wraps the cylindrical battery 2 to be cooled, the structural stability of the cylindrical battery pack can be enhanced, the deformation and the rupture of the cylindrical battery 2 are prevented, and the safety of the cylindrical battery 2 is improved. The pore wall of the accommodating hole 11 is provided with heat-conducting glue, of course, the heat-conducting glue can also be arranged on the outer surface of the cylindrical battery 2 to be cooled, of course, both the pore wall of the accommodating hole 11 and the outer surface of the cylindrical battery 2 to be cooled can be provided with heat-conducting glue, and as the heat-conducting capability of the heat-conducting glue is stronger than that of air, gaps can be prevented from being formed between the cylindrical battery 2 and the side wall of the accommodating hole 11, so that the cylindrical battery 2 is locally overheated, and the heat resistance of the cylindrical battery pack is enhanced.
Example 3
The utility model also provides an electric vehicle comprising the cylindrical battery pack provided in embodiment 2.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides a cold plate, its characterized in that, includes casing (1), casing (1) sets up a plurality of holding hole (11), holding hole (11) are used for holding the cylinder battery, the inside cooling fluid that is equipped with of casing (1), cooling fluid can fully surround the pore wall of holding hole (11).
2. A cold plate according to claim 1, wherein the receiving hole (11) is open at the outer surface of the housing (1), and a cavity is formed between the hole wall of the receiving hole (11) and the outer surface of the housing (1), the cavity being for placing the cooling fluid.
3. A cold plate according to claim 2, wherein a communicating cavity is formed between the wall of the receiving hole (11) and the outer surface of the housing (1).
4. A cold plate according to claim 1, wherein two opposite outer sides of the housing (1) are of serpentine configuration, the cambered curvature of which corresponds to the receiving hole (11).
5. A cold plate according to claim 3, wherein a plurality of micro-channels (12) are provided in the housing (1), the micro-channels (12) communicating with adjacent cavities, the cooling fluid being capable of flowing in the micro-channels (12).
6. A cold plate according to claim 5, wherein the micro-channels (12) are arranged in parallel or staggered, the micro-channels (12) being in communication with each other.
7. A cold plate according to claim 1, wherein the receiving holes (11) are arranged in a staggered manner on the housing (1).
8. A cylindrical battery pack comprising a cylindrical battery (2), wherein the cylindrical battery (2) is arranged in the accommodating hole (11) of the cold plate according to any one of claims 1 to 7, and the hole wall of the accommodating hole (11) is attached to the outer side wall of the cylindrical battery (2).
9. A cylindrical battery pack according to claim 8, wherein a heat-conducting glue is provided between the wall of the receiving hole (11) and the outer surface of the cylindrical battery (2).
10. An electric vehicle comprising a cylindrical battery pack as claimed in any one of claims 8 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320774430.3U CN219979664U (en) | 2023-04-10 | 2023-04-10 | Cold plate, cylindrical battery pack and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320774430.3U CN219979664U (en) | 2023-04-10 | 2023-04-10 | Cold plate, cylindrical battery pack and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219979664U true CN219979664U (en) | 2023-11-07 |
Family
ID=88587017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320774430.3U Active CN219979664U (en) | 2023-04-10 | 2023-04-10 | Cold plate, cylindrical battery pack and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219979664U (en) |
-
2023
- 2023-04-10 CN CN202320774430.3U patent/CN219979664U/en active Active
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