CN219937149U - Liquid cooling device and power battery - Google Patents
Liquid cooling device and power battery Download PDFInfo
- Publication number
- CN219937149U CN219937149U CN202320729669.9U CN202320729669U CN219937149U CN 219937149 U CN219937149 U CN 219937149U CN 202320729669 U CN202320729669 U CN 202320729669U CN 219937149 U CN219937149 U CN 219937149U
- Authority
- CN
- China
- Prior art keywords
- liquid cooling
- liquid
- total flow
- flow path
- channel
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 97
- 238000001816 cooling Methods 0.000 title claims abstract description 78
- 238000009434 installation Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 25
- 239000000110 cooling liquid Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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)
Abstract
The utility model is applicable to the technical field of batteries, and provides a liquid cooling device and a power battery. According to the embodiment of the utility model, the contact area between the battery cell and the bottom surface of the mounting groove can be increased, so that the heat dissipation efficiency of the battery cell is improved, and the problem that the heat dissipation efficiency of the battery cell is reduced due to the fact that the heat conducting fin is displaced to enable the battery cell to be locally suspended is avoided; and cooling liquid is introduced into the cooling channel, so that the heat dissipation efficiency of the liquid cooling plate is improved, and the heat dissipation efficiency of the power battery is improved.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a liquid cooling device and a power battery.
Background
The power battery is used as one of the core components of the new energy automobile and is used for providing power for the new energy automobile. As the power density of the power battery is higher, the heat dissipation requirement of the market on the power battery is higher.
At present, most power batteries are cooled by liquid to improve the heat dissipation efficiency of the power batteries. However, due to manufacturing and assembly errors, no contact is caused in a local area between the battery cell and the liquid cooling plate, so that the efficiency of the liquid cooling plate for taking away heat of the battery cell is reduced, and the heat dissipation efficiency of the power battery is reduced.
Disclosure of Invention
The embodiment of the utility model provides a liquid cooling device and a power battery, which can improve the heat dissipation efficiency of the power battery.
To achieve the above object, in a first aspect, an embodiment of the present utility model provides a liquid cooling apparatus, including:
the liquid cooling plate, be provided with cooling channel in the liquid cooling plate, the side of liquid cooling plate is provided with inlet and liquid outlet, the front of liquid cooling plate is provided with the mounting groove, cooling channel's both ends respectively with the inlet with the liquid outlet intercommunication, the mounting groove is used for setting up conducting strip and electric core.
In some possible implementations of the first aspect, the liquid inlet and the liquid outlet are disposed on a same side of the liquid cooling plate.
In some possible embodiments of the first aspect, the flatness of the bottom surface of the mounting groove is less than 0.3mm.
In some possible implementations of the first aspect, the cooling channel includes:
the first total flow passage is communicated with the liquid inlet;
the second total flow passage is communicated with the liquid outlet;
the split flow channels are provided with a plurality of split flow channels, and the split flow channels are respectively communicated with the first total flow channel and the second total flow channel.
In some possible embodiments of the first aspect, the total length of the plurality of said flow-dividing channels is the same.
In some possible implementations of the first aspect, the shunt has a inflection point.
In some possible implementations of the first aspect, the first total flow channel is parallel to the second total flow channel, and two ends of the split flow channel are perpendicular to the first total flow channel and the second total flow channel, respectively.
In some possible implementations of the first aspect, the extension directions of the sub-channels in the direction perpendicular to the first total flow channel are parallel, and the intervals of the sub-channels in the direction perpendicular to the first total flow channel are the same.
In some possible implementations of the first aspect, the cross-sectional areas of the first and second total flow channels are each greater than or equal to a sum of the cross-sectional areas of the sub-flow channels.
In a second aspect, an embodiment of the present utility model provides a power battery, where the power battery includes a liquid cooling device according to any one of the foregoing technical solutions.
The liquid cooling device and the liquid cooling plate of the power battery are provided with the mounting groove, and the mounting groove is used for arranging the heat conducting fin and the battery cell, so that the heat conducting fin is limited by the mounting groove, the contact area between the battery cell and the bottom surface of the mounting groove is increased, the heat dissipation efficiency of the battery cell is improved, and the phenomenon that the heat dissipation efficiency of the battery cell is reduced due to the fact that the heat conducting fin is displaced to enable the part of the battery cell to be suspended is avoided; the mounting groove can also be used for mounting the battery cell so as to reduce the number of extra supporting pieces for supporting the battery cell; the cooling plate is internally provided with a cooling channel, the side surface of the cooling plate is provided with a liquid inlet and a liquid outlet, and two ends of the cooling channel are respectively communicated with the liquid inlet and the liquid outlet so as to improve the heat dissipation efficiency of the cooling plate by introducing cooling liquid into the cooling channel, thereby improving the heat dissipation efficiency of the power battery.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a liquid cooling apparatus according to the present utility model;
fig. 2 is a cross-sectional view of an embodiment of the liquid cooling apparatus of fig. 1.
Reference numerals illustrate:
100. a liquid cooling plate; 1. a mounting groove; 2. a cooling channel; 21. a first total flow path; 22. a second total flow path; 221. a converging portion; 222. a connection part; 23. a sub-runner; 3. a liquid inlet; 4. and a liquid outlet.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
It should be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The embodiment of the utility model provides a liquid cooling device and a power battery, which are used for solving the technical problem of low heat dissipation efficiency of the power battery.
In the embodiment of the utility model, as shown in fig. 1 and 2, the liquid cooling device comprises a liquid cooling plate 100, a cooling channel 2 is arranged in the liquid cooling plate 100, a liquid inlet 3 and a liquid outlet 4 are arranged on the side surface of the liquid cooling plate 100, a mounting groove 1 is arranged on the front surface of the liquid cooling plate 100, two ends of the cooling channel 2 are respectively communicated with the liquid inlet 3 and the liquid outlet 4, and the mounting groove 1 is used for arranging a heat conducting fin and a battery cell.
When the battery module is installed, the heat conducting fin can be placed in the installation groove 1 firstly, then the battery module formed by the battery cells is installed in the installation groove 1, so that the heat conducting fin is positioned between the bottom surface of the installation groove 1 and the battery module, the contact area between the installation groove 1 and the battery module is increased through the heat conducting fin, the local suspension of the battery module is avoided, and the heat dissipation efficiency of the battery module is affected.
The liquid cooling plate 100 of the embodiment of the utility model is provided with the mounting groove 1, the mounting groove 1 is used for arranging the heat conducting fin and the battery cell, so that the heat conducting fin is limited by the mounting groove 1, the contact area between the battery cell and the bottom surface of the mounting groove 1 is increased, the heat dissipation efficiency of the battery cell is improved, and the problem that the heat dissipation efficiency of the battery cell is reduced due to the fact that the heat conducting fin is displaced to cause the local suspension of the battery cell is avoided; and the mounting groove 1 can also be used for mounting the battery cell so as to reduce the number of extra supporting pieces for supporting the battery cell; the cooling channel 2 is arranged in the liquid cooling plate 100, the liquid inlet 3 and the liquid outlet 4 are arranged on the side face of the liquid cooling plate 100, two ends of the cooling channel 2 are respectively communicated with the liquid inlet 3 and the liquid outlet 4, so that cooling liquid is introduced into the cooling channel 2, the heat dissipation efficiency of the liquid cooling plate 100 is improved, and the heat dissipation efficiency of the power battery is improved.
In one embodiment, as shown in fig. 1, the liquid inlet 3 and the liquid outlet 4 are disposed on the same side of the liquid cooling plate 100. When the liquid cooling plate 100 is arranged, the liquid inlet 3 and the liquid outlet 4 can face the external circulation device, so that liquid inlet and liquid outlet are convenient.
In an embodiment, the flatness of the bottom surface of the mounting groove 1 is less than 0.3mm, so as to reduce the gap between the battery cell and the bottom surface of the mounting groove 1, further reduce the contact thermal resistance, enhance the heat transfer, and thereby improve the heat dissipation efficiency of the liquid cooling plate 100. The excessive gap between the battery cell and the bottom surface of the installation groove 1 is avoided, so that the efficiency of heat transfer from the battery cell to the liquid cooling plate 100 is reduced.
In one embodiment, as shown in fig. 1 and 2, the cooling channel 2 includes a first total flow channel 21, a second total flow channel 22 and a split flow channel 23, wherein the first total flow channel 21 is communicated with the liquid inlet 3; the second main flow passage 22 is communicated with the liquid outlet 4; the sub flow passages 23 are provided in plurality, and the sub flow passages 23 are respectively communicated with the first main flow passage 21 and the second main flow passage 22. The cooling liquid enters the first total flow channel 21 from the liquid inlet 3, and then is split in the first total flow channel 21 to enter the sub-flow channels 23 respectively, so that the temperature of the cooling liquid entering each sub-flow channel 23 is close to and lower than that, and the uniformity of heat dissipation of the liquid cooling plate 100 is improved. The cooling liquid then merges into the second main flow passage 22 through the respective sub flow passages 23, and flows out from the liquid outlet 4 through the second main flow passage 22.
In an embodiment, as shown in fig. 2, the total lengths of the plurality of sub-channels 23 are the same, so that the temperatures of the cooling liquids flowing from the sub-channels 23 to the second main channel 22 are similar, and the heat dissipation effect of each sub-channel 23 on the battery cell is the same, so as to improve the uniformity of heat dissipation.
In one embodiment, as shown in FIG. 2, the shunt 23 has a inflection point. Because the spacing between the first total flow channel 21 and the second total flow channel 22 is limited, the split flow channel 23 generates an inflection point after being bent, and then the split flow channel is converged to the second total flow channel 22 after being bent, so that the total length of the split flow channel 23 can be prolonged, and the cooling liquid in the split flow channel 23 can fully perform heat exchange, thereby improving the cooling effect of the liquid cooling plate 100.
In one embodiment, as shown in fig. 2, the first total flow channel 21 is parallel to the second total flow channel 22, and two ends of the split flow channel 23 are perpendicular to the first total flow channel 21 and the second total flow channel 22, respectively. The split flow channels 23 can be conveniently arranged between the first total flow channel 21 and the second total flow channel 22, so that the trend of each split flow channel 23 is similar, and the heat dissipation effect of each split flow channel 23 is similar, so that the heat dissipation uniformity is improved. The situation that the trend of each sub-runner 23 is difficult to be arranged close when the first sub-runner 21 and the second sub-runner 22 are not parallel and the two ends of the sub-runner 23 are not perpendicular to the first sub-runner 21 and the second sub-runner 22 is avoided.
In one embodiment, as shown in fig. 2, the extending directions of the flow dividing channels 23 in the direction perpendicular to the first total flow passage 21 are parallel, and the intervals of the flow dividing channels 23 in the direction perpendicular to the first total flow passage 21 are the same. So that the flow dividing channels 23 are uniformly distributed on the liquid cooling plate 100, thereby improving the uniformity of heat dissipation of the liquid cooling plate 100.
In one embodiment, as shown in fig. 2, the cross-sectional areas of the first and second total flow channels 21 and 22 are each greater than or equal to the sum of the cross-sectional areas of the sub-flow channels 23. The influence of the disturbance of the coolant in the sub-flow passage 23 on the water pressure in the first and second main flow passages 21, 22 can be reduced, and the pressure drop in the first and second main flow passages 21, 22 and 23 can be reduced.
In an embodiment, as shown in fig. 1 and 2, the second total flow channel 22 includes a converging portion 221 and a connecting portion 222, the converging portion 221 is communicated with the connecting portion 222, the sub-flow channel 23 is communicated with the converging portion 221, and the connecting portion 222 is also communicated with the liquid outlet 4, so as to achieve the purpose that the liquid inlet 3 and the liquid outlet 4 are disposed on the same side of the liquid cooling plate 100.
In addition, the embodiment of the utility model also provides a power battery, which comprises a liquid cooling device, and the specific structure of the liquid cooling device refers to the embodiment, and the power battery adopts all the technical schemes of all the embodiments, so that the power battery has at least all the beneficial effects brought by the technical schemes of the embodiments.
It is understood that the power battery further comprises an electric core and a heat conducting fin, wherein the electric core and the heat conducting fin are arranged in the mounting groove 1, and the heat conducting fin is arranged between the mounting groove 1 and the electric core.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A liquid cooling apparatus, comprising:
the liquid cooling plate, be provided with cooling channel in the liquid cooling plate, the side of liquid cooling plate is provided with inlet and liquid outlet, the front of liquid cooling plate is provided with the mounting groove, cooling channel's both ends respectively with the inlet with the liquid outlet intercommunication, the mounting groove is used for setting up conducting strip and electric core.
2. The liquid cooling apparatus according to claim 1, wherein the liquid inlet and the liquid outlet are provided on the same side of the liquid cooling plate.
3. The liquid cooling apparatus according to claim 1, wherein a flatness of a bottom surface of the installation groove is less than 0.3mm.
4. The liquid cooling apparatus of claim 1, wherein the cooling channel comprises:
the first total flow passage is communicated with the liquid inlet;
the second total flow passage is communicated with the liquid outlet;
the split flow channels are provided with a plurality of split flow channels, and the split flow channels are respectively communicated with the first total flow channel and the second total flow channel.
5. The liquid cooling apparatus according to claim 4, wherein the total lengths of the plurality of the branch passages are the same.
6. The liquid cooling apparatus according to claim 4, wherein the flow dividing passage has a bending inflection point.
7. The liquid cooling apparatus according to claim 6, wherein the first total flow path is parallel to the second total flow path, and both ends of the split flow path are perpendicular to the first total flow path and the second total flow path, respectively.
8. The liquid cooling apparatus according to claim 7, wherein the direction of extension of the split flow paths in the direction perpendicular to the first total flow path is parallel, and the intervals of the split flow paths in the direction perpendicular to the first total flow path are the same.
9. The liquid cooling apparatus according to claim 4, wherein cross-sectional areas of the first total flow path and the second total flow path are each larger than or equal to a sum of cross-sectional areas of the sub-flow paths.
10. A power cell comprising a liquid cooling device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320729669.9U CN219937149U (en) | 2023-03-23 | 2023-03-23 | Liquid cooling device and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320729669.9U CN219937149U (en) | 2023-03-23 | 2023-03-23 | Liquid cooling device and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219937149U true CN219937149U (en) | 2023-10-31 |
Family
ID=88493147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320729669.9U Active CN219937149U (en) | 2023-03-23 | 2023-03-23 | Liquid cooling device and power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219937149U (en) |
-
2023
- 2023-03-23 CN CN202320729669.9U patent/CN219937149U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217158320U (en) | Cooling component and battery module | |
| CN213483828U (en) | Liquid cooling plate, battery liquid cooling system and vehicle with battery liquid cooling system | |
| CN209744708U (en) | Multi-channel runner layer structure of PTC water heater | |
| CN219832815U (en) | Immersed battery pack | |
| CN212659535U (en) | High-power semiconductor device high-efficiency liquid cooling plate | |
| CN217444499U (en) | Liquid cooling plate, cooling system, battery and vehicle | |
| CN219937149U (en) | Liquid cooling device and power battery | |
| CN113035805A (en) | Liquid cooling plate and power module | |
| CN216698512U (en) | Liquid cooling plate | |
| CN217740647U (en) | Liquid cooling plate, battery module and power battery pack | |
| CN216648428U (en) | Battery heat exchange plate and battery pack | |
| CN116053647A (en) | Battery box assembly, battery pack and battery system | |
| CN215451527U (en) | Liquid cooling board and battery package | |
| CN213340362U (en) | New energy automobile semiconductor device liquid cooling radiator | |
| CN217933966U (en) | Big module of battery with good heat dispersion | |
| CN218996843U (en) | Battery cell cooling device and battery system | |
| CN215816032U (en) | Liquid cooling mechanism and battery pack | |
| CN220627922U (en) | Cooling component and battery pack | |
| CN218867215U (en) | Battery cooling structure and battery package and car | |
| CN219123321U (en) | Cooling structure and battery | |
| CN117062395B (en) | Radiator and manufacturing method | |
| CN219286595U (en) | Heat exchange plate, battery box assembly, battery pack and battery system | |
| CN218101421U (en) | Battery liquid cooling plate and battery system | |
| CN216054663U (en) | Double-side liquid cooling IGBT radiator | |
| CN113365469B (en) | Liquid cooling plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |