CN220628127U - Lithium battery module structure for unmanned aerial vehicle - Google Patents
Lithium battery module structure for unmanned aerial vehicle Download PDFInfo
- Publication number
- CN220628127U CN220628127U CN202322335678.2U CN202322335678U CN220628127U CN 220628127 U CN220628127 U CN 220628127U CN 202322335678 U CN202322335678 U CN 202322335678U CN 220628127 U CN220628127 U CN 220628127U
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- China
- Prior art keywords
- soft package
- battery module
- aerial vehicle
- unmanned aerial
- positive
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 21
- 239000003292 glue Substances 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a lithium battery module structure for an unmanned aerial vehicle, which relates to the technical field of lithium batteries, and particularly comprises a cylinder shell, and a soft package battery core, an integrated BMS board, positive and negative electrode connecting sheets and a connector assembly which are arranged in the cylinder shell; the cylinder shell comprises a cylinder shell body and a cylinder top cover which is hermetically arranged on the cylinder shell body; the plurality of soft package electric cores are sequentially stacked in the cylindrical shell body from inside to outside along the axial direction of the cylindrical shell body, and the integrated BMS board connects the plurality of soft package electric cores in series or in parallel sequentially; the circumferential side surface of the soft-package battery core is contacted with the inner side wall of the cylinder shell body; the integrated BMS board is connected with the connector assembly through the positive and negative connecting sheets; the connector assembly comprises a connection output plate adhered to the outermost soft package battery core and a connector connected and installed on the connection output plate; the battery module solves the problems of the existing cylindrical battery module, such as small capacitance and uneven heat dissipation of the battery.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a lithium battery module structure for an unmanned aerial vehicle.
Background
The lithium ion battery is used as a power source in an unmanned aerial vehicle power system because of the advantages of light weight, high discharge rate and the like. In order to obtain longer endurance time, the unmanned aerial vehicle has higher requirements on the capacitance and the heat dissipation performance of the battery pack of the lithium battery.
At present, when a cylindrical lithium battery module is assembled, a rectangular soft package battery core or 18650/26700/32700 cylindrical battery cores are generally arranged in a cylindrical shell in a multi-layer and multi-row manner, in the assembling process, the internal space of the cylindrical shell cannot be fully utilized due to the self body limitation, the electric capacity of the cylindrical battery module is limited by the body of the battery core, on one hand, the electric capacity of the battery core cannot be increased, on the other hand, the battery cannot be fully contacted with the shell, and the heat dissipation of the battery is uneven.
Disclosure of Invention
The utility model provides a lithium battery module structure for an unmanned aerial vehicle, which aims to solve the problems that the conventional cylindrical battery module has smaller electric capacity due to the limitation of an electric core body, and the battery cannot be fully contacted with a shell and the heat dissipation of the battery is uneven due to the fact that the electric core is smaller.
The utility model relates to a lithium battery module structure for an unmanned aerial vehicle, which adopts the following technical scheme:
the battery pack comprises a cylinder shell, and a soft package battery cell, an integrated BMS board, positive and negative electrode connecting sheets and a connector assembly which are arranged in the cylinder shell; the cylinder shell comprises a cylinder shell body and a cylinder top cover which is hermetically arranged on the cylinder shell body;
the plurality of soft package electric cores are sequentially stacked in the cylindrical shell body from inside to outside along the axial direction of the cylindrical shell body, and the integrated BMS board connects the plurality of soft package electric cores in series or in parallel sequentially; the circumferential side surface of the soft-package battery core is contacted with the inner side wall of the cylinder shell body;
the integrated BMS board is attached to the side surfaces of the soft package battery cores and is connected with the connector assembly through the positive and negative connecting sheets; the positive and negative electrode connecting pieces comprise a positive electrode connecting piece and a negative electrode connecting piece;
the connector assembly comprises a connection output plate adhered to the outermost soft package battery core and a connector connected and installed on the connection output plate.
Preferably, the diameter of the soft-packaged battery cell is larger than the height of the soft-packaged battery cell.
Preferably, waterproof glue is filled between the circumferential outer side wall of the connecting output plate and the inner side wall of the cylinder shell.
Preferably, a plurality of first through holes are formed in the integrated BMS board, and the positive electrode lugs and the negative electrode lugs on the soft package battery core respectively penetrate out of the different first through holes and are respectively connected with the first conductive plates arranged on the integrated BMS board.
Preferably, the first conductive sheet has a plurality.
Preferably, the first conductive sheets at both ends of the integrated BMS board are respectively used as a total positive electrode and a total negative electrode, the positive electrode connecting sheet is connected with the total positive electrode, and the negative electrode connecting sheet is connected with the total negative electrode.
Preferably, the connecting output plate is provided with a second through hole, and the positive electrode connecting sheet and the negative electrode connecting sheet respectively penetrate out of the second through hole and are respectively connected with a second conductive sheet arranged on the connecting output plate; the connection output plate is provided with a third mounting hole, and the connector is arranged at the third mounting hole.
Preferably, there are two second conductive sheets.
Preferably, the integrated BMS board, the positive and negative electrode connection pads, and the connection output board have conductivity.
Preferably, the connector is a pogo pin connector.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the plurality of soft package electric cores are sequentially stacked in the cylinder shell from inside to outside along the axis direction of the cylinder shell, and the circumferential side surfaces of the plurality of soft package electric cores are contacted with the inner side wall of the cylinder shell, so that the utilization rate of the inner space of the cylinder shell can be ensured to be maximized, namely, the capacitance of the battery pack with the same volume and the same shape of shell is maximized, and the soft package electric cores can be ensured to be fully contacted with the inner side wall of the cylinder shell, thereby ensuring that the heat dissipation effect of the soft package electric cores is better.
2. According to the utility model, the integrated BMS board can play a role in connecting a plurality of soft package battery cores in series or in parallel sequentially.
Drawings
In order to more clearly illustrate the embodiments of the 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, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an explosive structure of the present utility model;
fig. 2 is a schematic diagram of an assembly structure of a soft battery cell, an integrated BMS board and positive and negative electrode connection pieces according to the present utility model;
fig. 3 is a top view of the integrated BMS board of the present utility model;
FIG. 4 is a schematic view of a connector assembly according to the present utility model;
fig. 5 is a schematic structural diagram of a soft package battery cell according to the present utility model.
Description of the reference numerals
1. A cylindrical housing; 2. soft package battery core; 3. an integrated BMS board; 4. positive and negative electrode connecting pieces; 5. a connector assembly; 11. a cylinder housing; 12. a cylinder top cover; 21 positive electrode lugs; 22. a negative electrode ear; 31. a first through hole; 32. a first conductive sheet; 41. a positive electrode connecting sheet; 42. a negative electrode connecting sheet; 51. connecting an output plate; 52. a connector; 511. a second through hole; 512. a third through hole; 513. and a second conductive sheet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
An embodiment of a lithium battery module structure for an unmanned aerial vehicle according to the present utility model, as shown in fig. 1 to 5, includes:
the battery pack comprises a cylindrical shell 1, a soft package battery core 2, an integrated BMS board 3, positive and negative connecting pieces 4 and a connector assembly 5, wherein the soft package battery core 2, the integrated BMS board 3, the positive and negative connecting pieces 4 and the connector assembly 5 are arranged in the cylindrical shell 1; the cylinder shell 1 comprises a cylinder shell 11 and a cylinder top cover 12 which is hermetically arranged on the cylinder shell 11;
the soft battery cores 2 are sequentially stacked in the cylindrical shell 11 from inside to outside along the axis direction of the cylindrical shell 11, and the integrated BMS board 3 connects the soft battery cores 2 in series or in parallel sequentially; the circumferential side surface of the soft package battery core 2 is contacted with the inner side wall of the cylinder shell 11;
the integrated BMS board 3 is attached to the side surfaces of the soft package battery cores 2, and the integrated BMS board 3 is connected with the connector assembly 5 through the positive and negative connecting sheets 4; the positive and negative electrode connection pieces 4 include one positive electrode connection piece 41 and one negative electrode connection piece 42;
the connector assembly 5 includes a connection output plate 51 adhered to the outermost flexible package 2 and a connector 52 connected to the connection output plate 51.
In this embodiment, the diameter of the soft pack cell 2 is the height of the soft pack cell.
In this embodiment, waterproof glue is filled between the circumferential outer side wall of the connection output plate 51 and the inner side wall of the cylinder case 11.
In this embodiment, a plurality of first through holes 31 are formed in the integrated BMS board 3, and the positive electrode tab 21 and the negative electrode tab 22 on the soft battery cell 2 respectively penetrate from different first through holes 31 and are respectively connected with the first conductive sheets 32 disposed on the integrated BMS board 3.
In this embodiment, there are a plurality of first conductive sheets.
In this embodiment, the first conductive tabs 32 at both ends of the integrated BMS board 3 serve as a total positive electrode and a total negative electrode, respectively, the positive electrode connecting tab 41 is connected with the total positive electrode, and the negative electrode connecting tab 42 is connected with the total negative electrode.
In this embodiment, the connection output board 51 is provided with a second through hole 511, and the positive electrode connecting piece 41 and the negative electrode connecting piece 42 respectively penetrate from the second through hole 511 and are respectively connected with a second conductive piece 513 arranged on the connection output board 51; the connection output board 52 is provided with a third mounting hole 512, and the connector 52 is mounted at the third mounting hole 512.
In this embodiment, there are two second conductive sheets.
In this embodiment, the integrated BMS board 3, the positive and negative electrode connection pieces 4, and the connection output board 51 have conductivity.
In this embodiment, the connector 52 is a pogo pin connector.
In this embodiment, further, the positive electrode lugs 21 of the adjacent soft package battery cells 2 penetrate out from the same first through hole 31; the negative electrode lugs 22 of the adjacent soft package battery cells 2 penetrate out from the same first through hole 31.
In this embodiment, further, the diameter of the connection output plate 51 is smaller than the inner diameter of the cylinder housing 11.
In the present embodiment, further, the connection output plate 31 communicates the positive and negative electrode connection pieces 4 with the connector 52.
In this embodiment, further, the total positive electrode is located at the first conductive sheet 32 closest to the bottom of the cylindrical housing 11, and the total negative electrode is located at the first conductive sheet 32 furthest from the bottom of the cylindrical housing 11.
In this embodiment, further, the connection output plate 51 is disposed in parallel with the cylinder top cover 11, and the connector 51 is mounted vertically on the connection output plate 51.
The assembly process of this embodiment is:
1) Sequentially stacking a plurality of soft battery cells 2 along the axial direction, placing the integrated BMS plate 3 at the positive electrode lug 21 and the negative electrode lug 22 of the soft battery cells 2 (namely, the side face of a battery pack formed by the soft battery cells 2), penetrating the positive electrode lug 21 and the negative electrode lug 22 of the adjacent soft battery cells 2 from the first through holes 31 in the integrated BMS plate 3 respectively, and bending the positive electrode lug 21 and the negative electrode lug 22 by 90 degrees to enable the bent positive electrode lug 21 and the bent negative electrode lug 22 to be connected with the first conductive plates 32 on the integrated BMS plate 3 respectively;
2) Connecting one end of the positive electrode connecting sheet 41 with the total positive electrode, connecting one end of the negative electrode connecting sheet 42 with the total negative electrode, penetrating the other ends of the positive electrode connecting sheet 41 and the negative electrode connecting sheet 42 out of the second through holes 511 on the connecting output plate 51, bonding the connecting output plate 51 at the outermost soft package cell 2, and bending the other ends of the positive electrode connecting sheet 41 and the negative electrode connecting sheet 42 by 90 degrees, so that the bent positive electrode connecting sheet 41 and the bent negative electrode connecting sheet 42 are respectively connected with the second conductive sheets 513 on the connecting output plate 51;
3) The connector 51 is mounted at the third through hole 512 of the connection output plate 51, and then all components which have been assembled and connected are placed in the cylinder housing 11 (the connection output plate 51 is ensured to be positioned at the hole of the cylinder housing 11), waterproof glue is filled between the circumferential outer side wall of the connection output plate 51 and the inner side wall of the cylinder housing 11, and the top cover 12 is mounted.
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, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. Lithium battery module structure for unmanned aerial vehicle, its characterized in that: the battery pack comprises a cylinder shell (1), a soft package battery core (2), an integrated BMS board (3), positive and negative connecting sheets (4) and a connector assembly (5), wherein the soft package battery core (2), the integrated BMS board (3) and the positive and negative connecting sheets are arranged in the cylinder shell (1); the cylinder shell (1) comprises a cylinder shell body (11) and a cylinder top cover (12) which is hermetically arranged on the cylinder shell body (11);
the soft package battery cores (2) are sequentially stacked inside the cylindrical shell body (11) from inside to outside along the axial direction of the cylindrical shell body (11), and the integrated BMS board (3) connects the soft package battery cores (2) in series or in parallel sequentially; the circumferential side surface of the soft package battery core (2) is contacted with the inner side wall of the cylinder shell (11);
the integrated BMS board (3) is attached to the side surfaces of the soft package battery cores (2), and the integrated BMS board (3) is connected with the connector assembly (5) through the positive and negative connecting sheets (4); the positive and negative connecting pieces (4) comprise a positive connecting piece (41) and a negative connecting piece (42);
the connector assembly (5) comprises a connection output plate (51) adhered to the outermost soft package battery cell (2) and a connector (52) connected and mounted on the connection output plate (51).
2. The lithium battery module structure for an unmanned aerial vehicle according to claim 1, wherein: the diameter of the soft package battery core (2) is larger than the height of the soft package battery core (2).
3. The lithium battery module structure for an unmanned aerial vehicle according to claim 1, wherein: waterproof glue is filled between the circumferential outer side wall of the connecting output plate (51) and the inner side wall of the cylinder shell (11).
4. The lithium battery module structure for an unmanned aerial vehicle according to claim 1, wherein: a plurality of first through holes (31) are formed in the integrated BMS plate (3), and the positive lugs (21) and the negative lugs (22) on the soft package battery cells (2) penetrate out of the different first through holes (31) respectively and are connected with the first conductive sheets (32) arranged on the integrated BMS plate (3) respectively.
5. The unmanned aerial vehicle lithium battery module structure of claim 4, wherein: the first conductive sheet (32) has a plurality of first conductive sheets.
6. The unmanned aerial vehicle lithium battery module structure of claim 4, wherein: the first conductive plates (32) positioned at two ends of the integrated BMS plate (3) are respectively used as a total positive electrode and a total negative electrode, the positive electrode connecting sheet (41) is connected with the total positive electrode, and the negative electrode connecting sheet (42) is connected with the total negative electrode.
7. The lithium battery module structure for an unmanned aerial vehicle according to claim 1, wherein: the connecting output plate (51) is provided with a second through hole (511), and the positive connecting sheet (41) and the negative connecting sheet (42) respectively penetrate out of the second through hole (511) and are respectively connected with a second conductive sheet (513) arranged on the connecting output plate (51); and a third mounting hole (512) is formed in the connection output plate (51), and the connector (52) is mounted at the third mounting hole (512).
8. The unmanned aerial vehicle lithium battery module structure of claim 7, wherein: the number of the second conductive sheets (513) is two.
9. The lithium battery module structure for an unmanned aerial vehicle according to claim 1, wherein: the integrated BMS board (3), the anode connecting sheet (4) and the connecting output board (51) are all conductive.
10. The lithium battery module structure for an unmanned aerial vehicle according to claim 1, wherein: the connector (52) is a POGOPIN connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322335678.2U CN220628127U (en) | 2023-08-29 | 2023-08-29 | Lithium battery module structure for unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322335678.2U CN220628127U (en) | 2023-08-29 | 2023-08-29 | Lithium battery module structure for unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220628127U true CN220628127U (en) | 2024-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322335678.2U Active CN220628127U (en) | 2023-08-29 | 2023-08-29 | Lithium battery module structure for unmanned aerial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220628127U (en) |
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2023
- 2023-08-29 CN CN202322335678.2U patent/CN220628127U/en active Active
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