CN219959332U - Battery pack assembly and vehicle - Google Patents
Battery pack assembly and vehicle Download PDFInfo
- Publication number
- CN219959332U CN219959332U CN202321150799.3U CN202321150799U CN219959332U CN 219959332 U CN219959332 U CN 219959332U CN 202321150799 U CN202321150799 U CN 202321150799U CN 219959332 U CN219959332 U CN 219959332U
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- China
- Prior art keywords
- battery pack
- pack assembly
- battery
- lower shell
- circuit board
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- 238000001816 cooling Methods 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 238000004880 explosion Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery pack assembly and a vehicle, wherein the battery pack assembly comprises an upper shell, a lower shell, a battery core and a circuit board, wherein the upper shell is arranged on the lower shell and defines a containing cavity; the battery cell is arranged in the accommodating cavity, an explosion-proof valve is arranged on the end face, close to the upper shell, of the battery cell, and a pole is arranged on the end face, close to the lower shell, of the battery cell; the circuit board is arranged between the lower shell and the battery core, and a plurality of pole interfaces are arranged on the circuit board; the battery cells are configured in a plurality, and the plurality of poles are respectively connected with the plurality of pole interfaces correspondingly so as to connect the plurality of battery cells in series and/or in parallel. According to the battery pack assembly, the plurality of battery cells are connected in series and/or in parallel through the circuit board, so that the number of parts in the battery pack assembly can be reduced, the assembly period of the battery pack assembly is shortened, and the explosion-proof valve and the pole post are positioned at the opposite ends of the battery cells, so that the safety performance of the battery pack assembly can be improved.
Description
Technical Field
The utility model relates to the field of batteries, in particular to a battery pack assembly and a vehicle.
Background
In the related art, a plurality of electric cores are arranged in the battery pack, the electric cores are connected in series or in parallel through electric connectors, parts are more, and the assembly efficiency of the battery pack is low.
CN216488294U discloses a battery pack and an electric vehicle. The battery pack comprises a box body, N electric cores are arranged in the box body, and a positive pole post and a negative pole post are respectively arranged on two opposite side surfaces of each electric core; the battery pack further comprises a first electric connecting sheet, a second electric connecting sheet, a third electric connecting sheet and a fourth connecting sheet, wherein the first electric connecting sheet is connected with the positive electrode post of one of two adjacent electric cores and the negative electrode post of the other electric core; the second electric connecting sheet is connected with the positive electrode post of one of the two electric cores and the negative electrode post of the other electric core at intervals; the third electric connecting sheet is connected with the positive pole post of one of the battery cells and led out of the positive output end of the battery pack; the fourth connecting sheet is connected with the negative electrode post of one of the battery cells and leads out the negative electrode output end of the battery pack; the positive electrode output end and the negative electrode output end are positioned on the same side of the battery pack along the first direction, and at most two electric cores are spaced between the electric core connected with the third electric connecting piece and the electric core connected with the fourth connecting piece.
Above-mentioned battery package is through setting up the electricity connection piece and is connected a plurality of electric cores between electric core, and spare part is many, and assembly efficiency is low.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a battery pack assembly. According to the battery pack assembly, the plurality of battery cells are connected in series and/or in parallel through the circuit board, so that the number of parts in the battery pack assembly can be reduced, the assembly period of the battery pack assembly is shortened, and the explosion-proof valve and the pole post are positioned at the opposite ends of the battery cells, so that the safety performance of the battery pack assembly can be improved.
The utility model further provides a vehicle with the battery pack assembly.
The battery pack assembly according to the present utility model includes: the upper shell is arranged on the lower shell and defines a containing cavity; the battery cell is arranged in the accommodating cavity, an explosion-proof valve is arranged on the end face, close to the upper shell, of the battery cell, and a pole is arranged on the end face, close to the lower shell, of the battery cell; the circuit board is arranged between the lower shell and the battery core, and a plurality of pole interfaces are arranged on the circuit board; the battery cells are configured in a plurality, and the plurality of pole posts are respectively connected with the plurality of pole post interfaces correspondingly so as to connect the plurality of battery cells in series and/or in parallel.
According to the battery pack assembly, the circuit board is arranged between the lower shell and the battery cells, the plurality of pole column interfaces are arranged on the circuit board, the plurality of pole columns are respectively and correspondingly connected with the plurality of pole column interfaces, so that the plurality of battery cells can be connected in series and/or in parallel, the circuit board connects the plurality of battery cells in series and/or in parallel, the battery cells do not need to be connected through the electric connecting piece, the number of parts in the battery pack assembly is reduced, and the assembly period of the battery pack assembly is shortened. Through setting up explosion-proof valve on the terminal surface that the electricity core is close to the casing, regard as thermal runaway management area between electricity core and the last casing, the electricity core is towards thermal runaway management area exhaust pressure release when the explosion-proof valve is opened. By arranging the pole on the end face of the battery core close to the lower shell, the battery core and the lower shell serve as an electric management area, and the circuit board is arranged in the electric management area so as to connect the plurality of battery cores in series and/or in parallel. The thermal runaway management area and the electric management area are positioned at the different ends of the battery core, so that the electric and thermal runaway separated management is realized, and the safety performance of the battery pack assembly can be improved.
According to some embodiments of the utility model, the circuit board is provided with an acquisition module adapted to detect the temperature, voltage and/or current of the battery cell.
According to some embodiments of the utility model, the battery pack assembly further comprises: and the fireproof plate is arranged between the lower shell and the circuit board.
According to some embodiments of the utility model, the battery pack assembly further comprises: the water cooling plate is arranged between the lower shell and the fireproof plate, and a cooling pipeline suitable for cooling medium flow is formed in the water cooling plate.
According to some embodiments of the utility model, the battery pack assembly further comprises: the water cooling plate is arranged between the lower shell and the fireproof plate, a first groove and a second groove are formed in the surfaces, close to each other, of the fireproof plate and the water cooling plate respectively, and the fireproof plate is connected with the water cooling plate so that the first groove and the second groove are matched to define a cooling pipeline.
According to some embodiments of the utility model, the battery pack assembly further comprises: and the bottom guard plate is arranged between the water cooling plate and the lower shell.
According to some embodiments of the utility model, the bottom guard plate has reinforcing ribs formed thereon.
According to some embodiments of the utility model, a heat conducting glue layer is arranged between the battery cell and the upper shell.
According to some embodiments of the utility model, the heat conductive glue layer has an exhaust passage formed thereon adapted to communicate the explosion proof valve with the upper housing.
The vehicle according to the present utility model is briefly described below.
A vehicle according to the present utility model includes a battery pack assembly as described in any one of the embodiments above. Since the vehicle according to the present utility model includes the battery pack assembly according to any one of the embodiments described above, the vehicle according to the present utility model has a short assembly cycle of the battery pack assembly and high safety, and is advantageous in shortening the production cycle of the vehicle and improving the safety of the vehicle, and can provide more sufficient evacuation time for a person when the battery pack is thermally out of control.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is an exploded view of a battery pack assembly according to one embodiment of the present utility model.
Reference numerals:
a battery pack assembly 1;
a cell 11, an explosion-proof valve 111, and a pole 112;
12 circuit boards, 13 fireproof boards, 14 water cooling boards, 15 bottom guard boards and 16 heat conducting adhesive layers.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
A battery pack assembly 1 according to an embodiment of the present utility model is described below with reference to fig. 1.
As shown in fig. 1, a battery pack assembly 1 according to the present utility model includes an upper case, a lower case, a battery cell 11, and a circuit board 12, the upper case being disposed on the lower case and defining a receiving chamber; the battery cell 11 is arranged in the accommodating cavity, an explosion-proof valve 111 is arranged on the end face of the battery cell 11, which is close to the upper shell, and a pole 112 is arranged on the end face of the battery cell 11, which is close to the lower shell; the circuit board 12 is arranged between the lower shell and the battery core 11, and a plurality of pole interfaces are arranged on the circuit board 12; the plurality of battery cells 11 are configured in a plurality, and the plurality of poles 112 are respectively connected with the plurality of pole interfaces correspondingly so as to connect the plurality of battery cells 11 in series and/or in parallel.
The upper shell is arranged on the lower shell and defines a containing cavity, and the battery cell 11 is arranged in the containing cavity, so that the lower shell is used as a bearing piece of the battery cell 11. The upper shell and the lower shell are outer shells of the battery pack assembly 1, the battery cell 11 in the accommodating cavity can be protected, the influence of the battery pack assembly 1 on the battery cell 11 due to collision is reduced, and meanwhile the battery cell 11 is separated from the outside, so that a proper working environment is provided for the battery cell 11. An explosion-proof valve 111 is arranged on the end face, close to the upper shell, of the battery cell 11, and the explosion-proof valve 111 can be opened when the pressure inside the battery cell 11 rises so as to enable the battery cell 11 to be subjected to air discharge and pressure relief. The end face of the battery cell 11, which is close to the lower shell, is provided with a pole 112, and the pole 112 serves as the positive electrode or the negative electrode of the battery cell 11.
In the related art, a plurality of battery cells 11 are arranged in a battery pack, the battery cells 11 are connected in series or in parallel through electric connectors, parts are more, and the assembly efficiency of the battery pack is low.
According to the battery pack assembly 1, the circuit board 12 is arranged between the lower shell and the battery cells 11, the plurality of pole interfaces are arranged on the circuit board 12, the plurality of poles 112 are respectively and correspondingly connected with the plurality of pole interfaces, so that the plurality of battery cells 11 can be connected in series and/or in parallel, the circuit board 12 connects the plurality of battery cells 11 in series and/or in parallel, the battery cells 11 do not need to be connected through electric connectors, the number of parts in the battery pack assembly 1 is reduced, and the assembly period of the battery pack assembly 1 is shortened.
In particular, in the battery pack assembly 1 of the present utility model, by disposing the explosion-proof valve 111 on the end face of the cell 11 near the upper case, the thermal runaway management area is formed between the cell 11 and the upper case, and the cell 11 is vented toward the thermal runaway management area when the explosion-proof valve 111 is opened. By disposing the pole 112 on the end face of the battery cell 11 near the lower case, between the battery cell 11 and the lower case, as an electrical management area, the circuit board 12 is disposed in the electrical management area to connect the plurality of battery cells 11 in series and/or parallel with each other. The thermal runaway management area and the electrical management area are located at different ends of the battery cell 11, so that separate management of electrical and thermal runaway is realized, the aggravation degree of charge and discharge of the battery cell 11 to the thermal runaway is reduced, and the safety performance of the battery pack assembly 1 can be improved.
Therefore, in the battery pack assembly 1 of the present utility model, the plurality of battery cells 11 are connected in series and/or parallel through the circuit board 12, so that the number of components in the battery pack assembly 1 can be reduced, the assembly period of the battery pack assembly 1 can be shortened, and the explosion-proof valve 111 and the pole 112 are located at the opposite ends of the battery cells 11, so that the safety performance of the battery pack assembly 1 can be improved.
According to some embodiments of the present utility model, the circuit board 12 is provided with an acquisition module adapted to detect the temperature, voltage and/or current of the battery cells 11. Through setting up the collection module on circuit board 12, the collection module can gather the temperature, voltage and/or the electric current of electric core 11, detects and monitors the temperature, voltage and/or the electric current of electric core 11 in real time, conveniently overcurrent protection and thermal runaway management to electric core 11.
According to some embodiments of the present utility model, as shown in fig. 1, the battery pack assembly 1 further includes a fire protection plate 13, and the fire protection plate 13 is disposed between the lower case and the circuit board 12. The fireproof plate 13 is made of a fireproof material, and can resist high temperature and block flame. By arranging the fireproof plate 13 between the lower shell and the circuit board 12, the fireproof plate 13 can delay thermal runaway of the battery pack assembly 1, delay flame propagation and improve the safety performance of the battery pack assembly 1.
In some embodiments, the fireproof plate 13 is coated with a heat-conducting insulating glue, so that the fireproof plate 13 and the circuit board 12 can be conveniently bonded and communicated, and the heat dissipation capability of the circuit board 12 is improved.
According to some embodiments of the present utility model, as shown in fig. 1, the battery pack assembly 1 further includes a water cooling plate 14, the water cooling plate 14 being disposed between the lower case and the fireproof plate 13, and a cooling duct adapted to flow a cooling medium being formed in the water cooling plate 14. Through setting up water-cooling board 14 between lower casing and PLASTIC LAMINATED 13, be formed with cooling tube in the water-cooling board 14, coolant flows in cooling tube and can take away the heat in order to cool down battery package assembly 1, reduces battery package assembly 1 and takes place the risk of thermal runaway.
According to some embodiments of the present utility model, as shown in fig. 1, the battery pack assembly 1 further includes a water cooling plate 14, the water cooling plate 14 is disposed between the lower case and the fire protection plate 13, a first groove and a second groove are formed on surfaces of the fire protection plate 13 and the water cooling plate 14 close to each other, respectively, and the fire protection plate 13 is connected with the water cooling plate 14 such that the first groove and the second groove cooperate to define a cooling duct. The fire protection plate 13 is connected to the water cooling plate 14 while the first groove communicates with the second groove to define a cooling duct in which a cooling medium can flow to take away heat. The fireproof plate 13 and the water cooling plate 14 are matched to form a cooling pipeline, so that the integration level of the fireproof cooling system can be improved, the space utilization rate is improved, and the cost is reduced.
According to some embodiments of the present utility model, as shown in fig. 1, the battery pack assembly 1 further includes a bottom guard plate 15, and the bottom guard plate 15 is disposed between the water cooling plate 14 and the lower case. Through set up end backplate 15 between water-cooling board 14 and lower casing, end backplate 15 can strengthen the structural strength of panel subassembly, resists the collision that battery package subassembly 1 bottom received, and the protection holds the spare part in the intracavity, improves battery package subassembly 1 and resists the ability of deformation to improve the security performance of battery package subassembly 1.
According to some embodiments of the present utility model, the bottom shield 15 has ribs formed thereon. The reinforcing ribs may strengthen the bottom guard 15 and strengthen the bottom guard 15 against deformation, so that the bottom guard 15 may further strengthen the deformation resistance of the battery pack assembly 1.
According to some embodiments of the present utility model, as shown in fig. 1, a thermal conductive adhesive layer 16 is disposed between the battery cell 11 and the upper case. Through set up heat conduction glue film 16 between electric core 11 and last casing, heat conduction glue film 16 is with electric core 11 and last casing bonding connection, and heat conduction glue film 16 can give the last casing with the heat transfer of electric core 11, improves the heat dispersion of electric core 11.
According to some embodiments of the present utility model, an exhaust passage adapted to communicate the explosion-proof valve 111 with the upper case is formed on the heat conductive adhesive layer 16. The exhaust passage of the heat conduction adhesive layer 16 reserves a gas circulation space for the battery cell 11, air flow can circulate in the exhaust passage, and the exhaust passage communicates the explosion-proof valve 111 with the upper shell, so that the exhaust gas of the battery cell 11 conveniently flows out of the accommodating cavity through the exhaust passage, and the efficiency of the exhaust pressure relief of the battery pack assembly 1 is improved.
The vehicle according to the present utility model is briefly described below.
The vehicle according to the present utility model includes the battery pack assembly 1 in any one of the embodiments described above. Since the vehicle according to the present utility model includes the battery pack assembly 1 of any one of the above embodiments, the vehicle according to the present utility model has a short assembly cycle of the battery pack assembly 1 and high safety, and is advantageous in shortening the production cycle of the vehicle and improving the safety of the vehicle, and can provide more sufficient evacuation time for a person when the battery pack is thermally out of control.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.
In the description of the present utility model, "plurality" means two or more.
In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (10)
1. A battery pack assembly, comprising:
the upper shell is arranged on the lower shell and defines a containing cavity;
the battery cell is arranged in the accommodating cavity, an explosion-proof valve is arranged on the end face, close to the upper shell, of the battery cell, and a pole is arranged on the end face, close to the lower shell, of the battery cell;
the circuit board is arranged between the lower shell and the battery core, and a plurality of pole interfaces are arranged on the circuit board;
the battery cells are configured in a plurality, and the plurality of pole posts are respectively connected with the plurality of pole post interfaces correspondingly so as to connect the plurality of battery cells in series and/or in parallel.
2. The battery pack assembly of claim 1, wherein the circuit board is provided with an acquisition module adapted to detect the temperature, voltage and/or current of the cells.
3. The battery pack assembly of claim 1, further comprising: and the fireproof plate is arranged between the lower shell and the circuit board.
4. The battery pack assembly of claim 3, further comprising: the water cooling plate is arranged between the lower shell and the fireproof plate, and a cooling pipeline suitable for cooling medium flow is formed in the water cooling plate.
5. The battery pack assembly of claim 3, further comprising: the water cooling plate is arranged between the lower shell and the fireproof plate, a first groove and a second groove are formed in the surfaces, close to each other, of the fireproof plate and the water cooling plate respectively, and the fireproof plate is connected with the water cooling plate so that the first groove and the second groove are matched to define a cooling pipeline.
6. The battery pack assembly of claim 4 or 5, further comprising: and the bottom guard plate is arranged between the water cooling plate and the lower shell.
7. The battery pack assembly of claim 6, wherein the bottom guard plate has ribs formed thereon.
8. The battery pack assembly of claim 1, wherein a thermally conductive adhesive layer is disposed between the electrical cell and the upper housing.
9. The battery pack assembly of claim 8, wherein the thermally conductive adhesive layer has an exhaust passage formed thereon adapted to communicate the explosion proof valve with the upper housing.
10. A vehicle comprising the battery pack assembly of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321150799.3U CN219959332U (en) | 2023-05-12 | 2023-05-12 | Battery pack assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321150799.3U CN219959332U (en) | 2023-05-12 | 2023-05-12 | Battery pack assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219959332U true CN219959332U (en) | 2023-11-03 |
Family
ID=88549386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321150799.3U Active CN219959332U (en) | 2023-05-12 | 2023-05-12 | Battery pack assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219959332U (en) |
-
2023
- 2023-05-12 CN CN202321150799.3U patent/CN219959332U/en active Active
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