CN218568967U - Battery pack and electric vehicle - Google Patents
Battery pack and electric vehicle Download PDFInfo
- Publication number
- CN218568967U CN218568967U CN202222079701.1U CN202222079701U CN218568967U CN 218568967 U CN218568967 U CN 218568967U CN 202222079701 U CN202222079701 U CN 202222079701U CN 218568967 U CN218568967 U CN 218568967U
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- Prior art keywords
- battery
- cooling pipe
- battery pack
- cooling
- liquid
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- 238000001816 cooling Methods 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 239000002826 coolant Substances 0.000 claims abstract description 32
- 239000000110 cooling liquid Substances 0.000 claims description 30
- 238000009434 installation Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000565 sealant Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application relates to a battery pack and an electric vehicle, wherein the battery pack comprises a box body, a battery module, a hydraulic pump, a liquid storage tank, a first cooling pipe, a second cooling pipe, a third cooling pipe and a fourth cooling pipe; the battery module is arranged in the box body; the first cooling pipe is used for communicating the two battery modules which are arranged along the height direction of the box body, the second cooling pipe is used for communicating the two battery modules which are arranged along the length direction of the box body, the third cooling pipe is used for communicating the liquid storage tank with the hydraulic pump, and the fourth cooling pipe is used for communicating the liquid storage tank with the battery modules and communicating the hydraulic pump with the battery modules; the liquid storage pot stores first coolant liquid, and the inside of battery module is filled with the second coolant liquid, and the hydraulic pump is used for sucking the second coolant liquid to make first coolant liquid pour into the inside of battery module into. Compared with the prior art, the heat dissipation device has at least better heat dissipation efficiency.
Description
Technical Field
The application relates to a battery pack technology, in particular to a battery pack and an electric vehicle.
Background
At present, a power battery and an energy storage battery mainly heat and dissipate heat of a battery core through a liquid cooling plate. The heat dissipation efficiency is low. Especially for power batteries with high power such as ultra-power running and the like, the heat dissipation effect is difficult to meet the requirements.
SUMMERY OF THE UTILITY MODEL
An object of the present application is to provide a battery pack and an electric vehicle having more excellent heat dissipation efficiency.
To this end, in a first aspect, the present invention provides a battery pack, the battery pack comprising: the cooling device comprises a box body, a battery module, a hydraulic pump, a liquid storage tank, a first cooling pipe, a second cooling pipe, a third cooling pipe and a fourth cooling pipe;
the battery module is arranged in the box body;
the first cooling pipe is used for communicating the two battery modules which are arranged along the height direction of the box body, the second cooling pipe is used for communicating the two battery modules which are arranged along the length direction of the box body, the third cooling pipe is used for communicating the liquid storage tank with the hydraulic pump, and the four cooling pipes are used for communicating the liquid storage tank with the battery modules and communicating the hydraulic pump with the battery modules;
the liquid storage pot stores first coolant liquid, the inside of battery module has been filled with the second coolant liquid, the hydraulic pump is used for the suction the second coolant liquid to make first coolant liquid is injected the inside of battery module.
In this application first aspect, because the inside of battery module has been filled with the second coolant liquid, consequently, can absorb the produced heat of electric core of battery module through the second coolant liquid, and simultaneously, through first cooling tube, the second cooling tube, third cooling tube and fourth cooling tube, can make the hydraulic pump, the liquid storage pot communicates with all battery modules, so, just can flow through the second coolant liquid that absorbs heat in the power messenger battery module that the hydraulic pump produced, and make the first coolant liquid of heat not absorbed in the liquid storage pot flow to the battery module, and then make first coolant liquid continue to absorb the heat that electric core produced.
Compared with the prior art, the battery core cooling device has the advantages that the heat generated by the battery core can be directly absorbed through the first cooling liquid and the second cooling liquid, and accordingly the heat dissipation efficiency is higher. In addition, the cooling liquid has the performance of pressure resistance, high temperature resistance and low temperature resistance, so that the cooling liquid has the advantage of being capable of normally working under the conditions. On the other hand, the coolant liquid still has insulating nature, and then through pouring the coolant liquid in the battery module, can improve the insulating nature between the electric core.
In the first aspect of the present application, as an optional implementation manner, the battery module includes an upper casing, a lower casing, and a battery cell, where the upper casing is connected to the lower casing and forms an installation space, and the second cooling liquid is poured into the installation space, so that the battery cell fixed in the installation space is immersed in the second cooling liquid.
In this alternative embodiment, since the upper casing is connected to the lower casing to form the installation space, the installation space can be used for filling the second cooling liquid and installing the battery cell, and the battery cell can be immersed in the second cooling liquid, so that the second cooling liquid directly contacts with the battery cell and directly absorbs heat generated by the battery cell.
In the first aspect of the present application, as an optional embodiment, the lower case includes a through hole, wherein the first cooling pipe communicates the two battery modules arranged in the height direction of the case through the through hole, and the second cooling pipe communicates the two battery modules arranged in the length direction of the case through the through hole.
In this alternative embodiment, the first cooling pipe and the second cooling pipe can communicate the two battery modules through the through-hole in the lower case.
In the first aspect of the present application, as an optional embodiment, the upper casing and the lower casing are connected by screwing.
In the optional embodiment, the upper shell and the lower shell are connected in a screwing mode, so that the connection of the upper shell and the lower shell has the advantages of easiness in installation and convenience in disassembly.
In the first aspect of the present application, as an optional implementation manner, the battery pack further includes a sealing member, wherein the sealing member is filled in a connection gap between the upper case and the lower case.
In this alternative embodiment, the sealing member may fill a connection gap between the upper case and the lower case, thereby preventing the second coolant from flowing out.
In the first aspect of the present application, as an optional embodiment, the sealing member is a sealant.
In the first aspect of the present application, as an alternative embodiment, the sealing member is a gasket.
In the first aspect of the present application, as an optional embodiment, a filling ratio of the second cooling liquid in the installation space is 80% or more.
In the present alternative embodiment, since the filling ratio of the second coolant in the installation space is 80% or more, it is possible to prevent objects of different frequencies from vibrating within the installation space.
In the first aspect of the present application, as an optional embodiment, the lower case further includes a flow groove, wherein the flow groove communicates with the installation space.
In this alternative embodiment, the flow of the cooling liquid in the installation space can be facilitated by communicating the flow-through groove with the installation space.
In a second aspect, the present invention provides an electric vehicle comprising a battery pack as set forth in any one of the previous embodiments.
Since the electric vehicle of the second aspect of the present application includes the battery pack of the first aspect of the present application, it has all the advantages of the battery pack of the first aspect of the present application.
Additional features and advantages of the present application will be described in detail in the detailed description which follows.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present disclosure
Fig. 2 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure;
fig. 3 is a schematic cross-sectional view of a battery module according to an embodiment of the present disclosure.
Icon: 1, a box body; 2-a battery module; 3-a hydraulic pump; 4-a liquid storage tank; 5-a first cooling tube; 6-a second cooling pipe; 7-a third cooling tube; 8-a fourth cooling tube; 101-upper shell; 102-a lower shell; 103-battery cell; 104-a through hole; 105-flow-through groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the embodiments described are some, but not all embodiments of the present application. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the product of the application is usually placed in when used, and are used only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally 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 application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present disclosure, and as shown in fig. 1, the battery pack according to the embodiment of the present disclosure includes: box 1, battery module 2, hydraulic pump 3, the liquid storage pot 4, first cooling tube 5, second cooling tube 6, third cooling tube 7, fourth cooling tube 8, wherein, battery module 2 is installed in box 1, first cooling tube 5 is used for two battery module 2 intercommunications of arranging along box 1's direction of height, second cooling tube 6 is used for two battery module 2 intercommunications of arranging along box 1's length direction, third cooling tube 7 is used for communicating liquid storage pot 4 with hydraulic pump 3, the four cooling tube is used for communicating liquid storage pot 4 with battery module 2 and is used for communicating hydraulic pump 3 with battery module 2.
In the embodiment of the present application, the liquid storage tank 4 stores a first cooling liquid, the battery module 2 is filled with a second cooling liquid, and the hydraulic pump 3 is used for pumping the second cooling liquid and injecting the first cooling liquid into the battery module 2.
In this embodiment, because the inside of battery module 2 is filled with the second coolant, consequently, can absorb the produced heat of electric core 103 of battery module 2 through the second coolant, and simultaneously, through first cooling tube 5, second cooling tube 6, third cooling tube 7 and fourth cooling tube 8, can make hydraulic pump 3, liquid storage pot 4 and all battery modules 2 communicate, so, just can make the second coolant that has absorbed heat in the battery module 2 flow through the power that hydraulic pump 3 produced, and make the first coolant that does not absorb heat in the liquid storage pot 4 flow to battery module 2, and then make first coolant continue to absorb the heat that electric core 103 produced.
Compared with the prior art, the first cooling liquid and the second cooling liquid can directly absorb heat generated by the battery core 103, so that the heat dissipation efficiency is higher, and especially in the scene of adopting a high-power battery pack, such as overtaking, the heat dissipation efficiency is better. In addition, the cooling liquid has the performance of pressure resistance, high temperature resistance and low temperature resistance, so that the cooling liquid has the advantage of being capable of normally working under the conditions. On the other hand, the coolant liquid still has insulating nature, and then through pouring the coolant liquid in the battery module, can improve the insulating nature between the electric core.
In the present embodiment, as shown in fig. 1, the present embodiment has 4 battery modules 2, wherein two battery modules 2 arranged in the height direction of the case 1 are communicated by the first cooling pipe 5, and two battery modules 2 arranged in the length direction of the case 1 are communicated by the second cooling pipe 6.
In the embodiment of the present application, optionally, the embodiment of the present application may further include 3 battery modules 2, wherein the missing battery modules 2 may be replaced with additional cooling pipes to form a cooling circuit.
In the embodiment of the present application, the first cooling fluid in the fluid reservoir 4 may be optionally used to store the first cooling fluid flowing out of the battery module 2 after flowing into the battery module 2.
In the embodiment of the present application, both the first cooling liquid and the second cooling liquid may be water or other battery cooling liquid, which is not limited in the embodiment of the present application.
In the embodiment of the present application, please refer to fig. 2 as an alternative implementation manner, and fig. 2 is a schematic structural diagram of a battery module 2 provided in the embodiment of the present application. As shown in fig. 2, the battery module 2 includes an upper case 101, a lower case 102, and a battery cell 103, wherein the upper case 101 is connected to the lower case 102 to form an installation space, and the second cooling liquid is poured into the installation space, so that the battery cell 103 fixed in the installation space is immersed in the second cooling liquid.
In this alternative embodiment, since the upper case 101 and the lower case 102 are connected to form an installation space, the installation space can be used for pouring the second cooling liquid and installing the battery cell 103, and the battery cell 103 can be immersed in the second cooling liquid, so that the second cooling liquid directly contacts the battery cell 103 and directly absorbs heat generated from the battery cell 103.
In the present embodiment, as an alternative embodiment, the lower case 102 includes through-holes 104, wherein the first cooling pipe 5 communicates the two battery modules 2 arranged in the height direction of the case 1 through the through-holes 104, and the second cooling pipe 6 communicates the two battery modules 2 arranged in the length direction of the case 1 through the through-holes 104.
In the present alternative embodiment, the first cooling pipe 5 and the second cooling pipe 6 can communicate the two battery modules 2 through the through-holes 104 in the lower case 102.
In the embodiment of the present application, as an alternative implementation manner, the upper casing 101 and the lower casing 102 are connected by a screw connection manner.
In the alternative embodiment, the upper shell 101 and the lower shell 102 are connected by screwing, so that the connection between the upper shell 101 and the lower shell 102 has the advantages of easy installation and convenient disassembly.
In the embodiment of the present application, as an alternative implementation manner, the battery pack further includes a sealing member, wherein the sealing member fills a connection gap between the upper case 101 and the lower case 102.
In this alternative embodiment, the sealing member may fill the gap between the upper case 101 and the lower case 102, thereby preventing the second coolant from flowing out.
In the embodiment of the present application, as an optional implementation manner, the sealing element is a sealant.
In the embodiment of the present application, as an alternative embodiment, the sealing member is a sealing gasket.
In the embodiment of the present application, as an optional implementation manner, the filling ratio of the second cooling liquid in the installation space is 80% or more.
In the present alternative embodiment, since the filling ratio of the second coolant in the installation space is 80% or more, it is possible to prevent objects of different frequencies from vibrating within the installation space.
In the present embodiment, please refer to fig. 3 as an alternative implementation manner, and fig. 3 is a schematic cross-sectional view of a battery module 2 provided in the present embodiment. As shown in fig. 3, the lower case 102 further includes a flow groove 105, wherein the flow groove 105 communicates with the installation space.
In the present alternative embodiment, the flow of the coolant in the installation space can be facilitated by communicating the flow-through groove 105 with the installation space.
In addition, the embodiment of the application also provides an electric vehicle, and the electric vehicle comprises the battery pack according to any one of the previous embodiments.
Since the electric vehicle according to the embodiment of the present application includes the battery pack according to the embodiment of the present application, the electric vehicle has all advantages of the battery pack according to the embodiment of the present application.
Further features and advantages of the present application will be explained in the following detailed description, in which case the features in the embodiments of the present application can be combined with each other without conflict.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A battery pack, comprising: the cooling device comprises a box body, a battery module, a hydraulic pump, a liquid storage tank, a first cooling pipe, a second cooling pipe, a third cooling pipe and a fourth cooling pipe;
the battery module is arranged in the box body;
the first cooling pipe is used for communicating two battery modules which are arranged along the height direction of the box body, the second cooling pipe is used for communicating two battery modules which are arranged along the length direction of the box body, the third cooling pipe is used for communicating the liquid storage tank with the hydraulic pump, and the four cooling pipes are used for communicating the liquid storage tank with the battery modules and communicating the hydraulic pump with the battery modules;
the liquid storage pot stores first coolant liquid, the inside of battery module is filled with the second coolant liquid, the hydraulic pump is used for sucking the second coolant liquid, and makes first coolant liquid pour into the inside of battery module.
2. The battery pack according to claim 1, wherein the battery module includes an upper case, a lower case, and a cell, wherein the upper case is coupled to the lower case and forms an installation space, and the second cooling liquid is poured into the installation space such that the cell fixed in the installation space is immersed in the second cooling liquid.
3. The battery pack according to claim 2, wherein the lower case includes through-holes, wherein the first cooling pipe communicates the two battery modules arranged in the height direction of the case through the through-holes, and the second cooling pipe communicates the two battery modules arranged in the length direction of the case through the through-holes.
4. The battery pack according to claim 2, wherein the upper case and the lower case are coupled by a screw coupling manner.
5. The battery pack according to claim 4, further comprising a sealing member, wherein the sealing member is filled in a coupling gap between the upper case and the lower case.
6. The battery pack of claim 5, wherein the sealing member is a sealant.
7. The battery pack of claim 5, wherein the seal is a gasket.
8. The battery pack according to claim 2, wherein a filling ratio of the second coolant in the installation space is 80% or more.
9. The battery pack according to claim 2, wherein the lower case further comprises a circulation groove, wherein the circulation groove communicates with the mounting space.
10. An electric vehicle comprising the battery pack according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222079701.1U CN218568967U (en) | 2022-08-08 | 2022-08-08 | Battery pack and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222079701.1U CN218568967U (en) | 2022-08-08 | 2022-08-08 | Battery pack and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218568967U true CN218568967U (en) | 2023-03-03 |
Family
ID=85309758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222079701.1U Active CN218568967U (en) | 2022-08-08 | 2022-08-08 | Battery pack and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218568967U (en) |
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2022
- 2022-08-08 CN CN202222079701.1U patent/CN218568967U/en active Active
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