CN209766537U - Battery module and electric device - Google Patents
Battery module and electric device Download PDFInfo
- Publication number
- CN209766537U CN209766537U CN201920607021.8U CN201920607021U CN209766537U CN 209766537 U CN209766537 U CN 209766537U CN 201920607021 U CN201920607021 U CN 201920607021U CN 209766537 U CN209766537 U CN 209766537U
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- tab
- battery cell
- positioning
- battery module
- battery
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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
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Abstract
The utility model provides a battery module, which comprises a battery cell unit arranged in a stacked manner, wherein the battery cell unit at least comprises a battery cell A, a battery cell B and a tab connecting piece, the battery cell A and the battery cell B are arranged in the Y direction, and the tab connecting piece is arranged between the battery cell A and the battery cell B; the lug connecting piece comprises a conduction part and a supporting part for supporting the conduction part, and the supporting part is made of an insulating material; the second electrode lug of the battery cell A is electrically connected with the first electrode lug or the second electrode lug of the battery cell B through the conduction part. The utility model provides an electricity connect the problem that easily receives vibrations to influence, provide a battery module.
Description
Technical Field
The utility model relates to a battery module and electric actuator.
Background
Batteries are the power source of electric vehicles, and along with the popularization of electric vehicles, it is very necessary to develop battery modules suitable for different vehicle types. A battery module typically includes a plurality of cells connected in series and parallel, and then is fixed using end plates and a protective cover. Currently, most battery modules realize series-parallel connection of battery cores through a bus bar and are then fixed through end plates and a protective cover; the outside of end plate also need set up electric connection structure between the battery module, leads to the space utilization of battery package to reduce, and the location of electricity connection is unreliable moreover, easily receives the influence of vibrations. Therefore, it is desirable to provide a module structure capable of improving the space utilization of the battery module and enhancing the reliability of the electrical connection.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery module, which comprises a battery cell unit arranged in a stacked manner, wherein the battery cell unit at least comprises a battery cell A, a battery cell B and a tab connecting piece, the battery cell A and the battery cell B are arranged in the Y direction, and the tab connecting piece is arranged between the battery cell A and the battery cell B; the tab connecting piece comprises a conduction part and a supporting part for supporting the conduction part; the second electrode lug of the battery cell A is electrically connected with the first electrode lug or the second electrode lug of the battery cell B through the conduction part.
The cell units are arranged in a stacking manner along the thickness direction of the cell, the Y direction is perpendicular to the stacking direction and parallel to the lead-out direction of the lug, and the cell A and the cell B are arranged on the same plane or basically on the same plane; the first electrode lug of the battery cell A is connected with the conduction part, and the first electrode lug or the second electrode lug of the battery cell B is connected with the conduction part, so that the electric connection between the battery cell A and the battery cell B is realized.
At least one end of the supporting part is provided with a positioning bulge extending along the stacking direction and a positioning groove matched with the positioning bulge, and the positioning bulge and the positioning groove are respectively arranged on two opposite sides of the supporting part.
The conduction part is embedded in the supporting part and at least protrudes out of one surface of the supporting part. The supporting part is made of insulating material.
The conduction part penetrates through two opposite surfaces of the supporting part in the Z direction. The Z direction is a stacking direction of the cell units.
Both ends of the supporting part are provided with positioning bulges and positioning grooves.
When the battery cell units are stacked, the positioning bulge of one battery cell unit is inserted into the positioning groove of the adjacent battery cell unit to fix the lug connecting piece. The tab connection member supports the first tab and/or the second tab.
The positioning bulges of the same supporting part are positioned at the same side of the supporting part; the conduction part is arranged between the two positioning bulges of the supporting part.
Two positioning bulges of the same supporting part are positioned at two opposite sides of the supporting part; the conduction part is arranged between the positioning bulge and the positioning groove on the same side of the supporting part.
limiting plates extending along the stacking direction are arranged on the edges of the two sides of the supporting part, and the limiting plates are arranged between the positioning bulges and the first pole lug or the second pole lug; or the limiting plate is arranged between the positioning groove and the first lug or the second lug.
the limiting plate is used for spacing electric core A and/or electric core B, reduces the electric core A and/or the electric core B displacement when the battery module shakes of supporting part both sides.
the battery cell is a soft-package battery cell, and the conduction part is made of copper; the first lug and the second lug of the same battery cell are respectively arranged on two sides of the battery cell.
Through holes are formed in the corresponding positions of the positioning protrusions and the positioning grooves, and the fixing rod penetrates through the through holes to realize fixing of different tab connecting pieces.
The first tab is a positive tab, and the second tab is a negative tab; or the first tab is a negative tab, and the second tab is a positive tab.
The utility model also provides an electric device, which comprises the battery module; the electric device comprises a battery power automobile, an oil-electricity hybrid electric automobile, a plug-in hybrid electric automobile, an electric mine car, an electric logistics car, an electric forklift, an electric ship or an electric aircraft.
The utility model has the advantages that:
The battery module provided by the utility model simplifies the structure and improves the energy density of the battery pack because the battery core A and the battery core B are arranged in the direction perpendicular to the stacking direction and compared with the battery core which is directly stacked into a group and then electrically connected; the lug connecting piece is arranged between the battery cell A and the battery cell B, so that insulation or electric connection between the stacked battery cell units can be realized, in addition, the lug connecting piece can realize positioning between the lug connecting pieces when the battery cell units are stacked through arranging the positioning bulges and the positioning grooves, and the reliability of electric connection is improved; and, because be provided with the limiting plate on the utmost point ear connecting piece, help realizing the location of electric core.
Drawings
FIG. 1 is a schematic view of a battery module;
Fig. 2 is a schematic diagram of a cell unit structure;
Fig. 3 is a schematic view of a lamination structure of a tab connector;
Fig. 4 is a schematic view of a tab connector structure;
Fig. 5 is a schematic structural view from another perspective of a tab connector;
FIG. 6 is an enlarged schematic view of F in FIG. 2;
Fig. 7 is a schematic view of a tab connector according to another embodiment;
Fig. 8 is a schematic structural view of a battery module according to another embodiment;
fig. 9 is a schematic view showing a structure of a tab connector according to still another embodiment.
Description of reference numerals:
1: cell unit, 101: cell a, 102: cell B, 103: cell C, 2: tab connection, 201: conduction part, 202: support portion, 3: first tab, 4: second tab, 5: positioning projection, 6: positioning groove, 7: limiting plate, 8: and a through hole.
Detailed Description
the present invention is described in detail with reference to the following specific examples, but the present invention is not limited to the following examples.
example 1:
As shown in fig. 1, fig. 2, and fig. 3, the present embodiment provides a battery module, which includes a stacked battery cell unit 1, where the battery cell unit includes a battery cell a101, a battery cell B102, a battery cell C103, and a tab connector 2, where the battery cell a101, the battery cell B102, and the battery cell C103 are arranged in a direction perpendicular to the stacking direction (i.e., a Y direction in fig. 2), the battery cell is a flexible package battery cell, and a first tab 3 and a second tab 4 of the same battery cell are respectively disposed on two sides of the battery cell; the tab connectors 2 are respectively disposed between the battery cell a101 and the battery cell B102, and between the battery cell B102 and the battery cell C103.
As shown in fig. 4, 5 and 6, the tab connector 2 includes a conduction part 201 and a support part 202 supporting the conduction part 201, the support part 202 is made of an insulating material, and the conduction part 201 is made of copper; the conduction part 201 is embedded on the support part 202 and protrudes out of the upper surface of the support part 202; the first tab 3 of the battery cell B102 is electrically connected to the second tab 4 of the battery cell a101 through the conduction part 201, and the second tab 4 of the battery cell B102 is electrically connected to the first tab 3 of the battery cell C103 through the conduction part 201 of the other tab connection member 2; specifically, the first tab 3 of the battery cell B102 and the second tab 4 of the battery cell a101 are welded to the conduction portion 201 of the tab connection member 2, and the second tab 4 of the battery cell B102 and the first tab 3 of the battery cell C103 are welded to the conduction portion 201 of the other tab connection member 2.
Both ends of the support portion 202 are provided with positioning projections 5 extending in the stacking direction (i.e., the Z direction in fig. 3) and positioning grooves 6 engaged with the positioning projections 5, and the positioning projections 5 and the positioning grooves 6 at either end of the support portion 202 are respectively provided on opposite sides of the support portion 202, i.e., on opposite faces in the Z direction.
The positioning protrusions 5 of the same support part 202 are positioned on the same side of the support part 202; the conduction part 201 is provided between the two positioning projections 5 of the support part 202.
Through holes 8 are arranged at corresponding positions on the positioning protrusions 5 and the positioning grooves 6, and fixing rods (not shown in the figure) penetrate through the through holes 8 to fix different tab connectors 2.
limiting plates 7 extending in the stacking direction are disposed at both side edges of the supporting portion 202, and the limiting plates 7 are disposed between the positioning protrusions 5 and the first tab 3 or the second tab 4.
The first tab 3 is a positive tab, and the second tab 4 is a negative tab.
Example 2:
As shown in fig. 7, embodiment 2 differs from embodiment 1 in that two positioning projections 5 of the same support portion 202 are located on opposite sides of the support portion 202; the conduction part 201 is arranged between the positioning protrusion 5 and the positioning groove 6 on the same side of the support part 202.
The first tab 3 is a negative tab, and the second tab 4 is a positive tab.
Example 3:
As shown in fig. 2 and fig. 8, this embodiment provides a battery module, which includes two battery cell units 1 arranged in a stacked manner, where each battery cell unit includes a battery cell a101, a battery cell B102, a battery cell C103, and a tab connector 2, where the battery cell a101, the battery cell B102, and the battery cell C103 are arranged in a direction perpendicular to the stacking direction (i.e., in a Y direction in fig. 8), the battery cell is a flexible package battery cell, and a first tab 3 and a second tab 4 of the same battery cell are respectively disposed on two sides of the battery cell; the tab connectors 2 are respectively disposed between the battery cell a101 and the battery cell B102, and between the battery cell B102 and the battery cell C103.
as shown in fig. 9, the tab connector 2 includes a conduction part 201 and a support part 202 supporting the conduction part 201, the support part 202 is made of an insulating material, and the conduction part 201 is made of copper; the conduction part 201 is embedded in the support part 202, and the conduction part 201 penetrates through two opposite surfaces in the Z direction of the support part. As shown in fig. 2, for the same cell unit 1, the first tab 3 of the cell B102 is electrically connected to the second tab 4 of the cell a101 through the conduction portion 201, and the second tab 4 of the cell B102 is electrically connected to the first tab 3 of the cell C103 through the conduction portion 201 of the other tab connection member 2; as shown in fig. 8, two adjacent battery cell units 1 may share the tab connector 2, specifically, the first tabs 3 of two battery cells B102 of two battery cell units 1 are electrically connected to the conduction portions 201 of two opposite surfaces in the Z direction of the supporting portion respectively, the second tabs 4 of two battery cells a101 are electrically connected to the conduction portions 201 of two opposite surfaces in the Z direction of the supporting portion respectively, and similarly, the second tabs 4 of two battery cells B102 are electrically connected to the first tabs 3 of two battery cells C103 through the conduction portions 201 of another tab connector 2 respectively.
Example 4:
The present embodiment provides an electric device including the battery module according to any one of embodiments 1 to 3; the electric device comprises a battery power automobile, an oil-electricity hybrid electric automobile, a plug-in hybrid electric automobile, an electric mine car, an electric logistics vehicle, an electric forklift, an electric ship or an electric aircraft.
the above description is only for some specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. The protection scope of the present invention is subject to the protection scope of the claims.
Claims (13)
1. The battery module is characterized by comprising a battery cell unit which is arranged in a laminated mode, wherein the battery cell unit at least comprises a battery cell A, a battery cell B and a lug connecting piece, the battery cell A and the battery cell B are arranged in the Y direction, and the lug connecting piece is arranged between the battery cell A and the battery cell B; the tab connecting piece comprises a conduction part and a supporting part for supporting the conduction part; the second electrode lug of the battery cell A is electrically connected with the first electrode lug or the second electrode lug of the battery cell B through the conduction part.
2. The battery module according to claim 1, wherein the conduction part is fitted on the support part and protrudes from at least one surface of the support part.
3. The battery module according to claim 2, wherein the conduction part penetrates through two surfaces of the support part which are opposite to each other in the Z direction.
4. The battery module according to any one of claims 1 to 3, wherein at least one end of the support part is provided with a positioning protrusion extending in the stacking direction and a positioning groove engaged with the positioning protrusion, the positioning protrusion and the positioning groove being respectively provided at opposite sides of the support part.
5. The battery module according to claim 4, wherein both ends of the support part are provided with positioning protrusions and positioning grooves.
6. The battery module according to claim 5, wherein the positioning protrusions of the same support part are located on the same side of the support part; the conduction part is arranged between the two positioning bulges of the supporting part.
7. The battery module according to claim 5, wherein two positioning protrusions of the same support part are located at opposite sides of the support part; the conduction part is arranged between the positioning bulge and the positioning groove on the same side of the supporting part.
8. The battery module according to claim 4, wherein the support part is provided at both side edges thereof with stopper plates extending in the stacking direction, the stopper plates being disposed between the positioning protrusions and the first or second tabs; or the limiting plate is arranged between the positioning groove and the first lug or the second lug.
9. The battery module of claim 1, wherein the first tab and the second tab of the same cell are disposed on opposite sides of the cell.
10. The battery module according to claim 4, wherein through-holes are provided at corresponding positions of the positioning protrusions and the positioning grooves, and fixing rods pass through the through-holes to achieve fixing between different tab connectors.
11. the battery module according to claim 1, wherein the first tab is a positive tab and the second tab is a negative tab; or the first tab is a negative tab, and the second tab is a positive tab.
12. an electric device, characterized in that: comprising a battery module according to any one of claims 1 to 11.
13. The motorized apparatus of claim 12, wherein: the electric device comprises a battery power automobile, an oil-electricity hybrid electric automobile, a plug-in hybrid electric automobile, an electric mine car, an electric logistics car, an electric forklift, an electric ship or an electric aircraft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920607021.8U CN209766537U (en) | 2019-04-29 | 2019-04-29 | Battery module and electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920607021.8U CN209766537U (en) | 2019-04-29 | 2019-04-29 | Battery module and electric device |
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| Publication Number | Publication Date |
|---|---|
| CN209766537U true CN209766537U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920607021.8U Active CN209766537U (en) | 2019-04-29 | 2019-04-29 | Battery module and electric device |
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| CN (1) | CN209766537U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111785885A (en) * | 2020-07-23 | 2020-10-16 | 中航锂电（洛阳）有限公司 | Battery pack and electric device |
| WO2021217967A1 (en) * | 2020-04-30 | 2021-11-04 | 昆山宝创新能源科技有限公司 | Battery module, battery pack and vehicle |
| CN113745744A (en) * | 2020-05-29 | 2021-12-03 | 本田技研工业株式会社 | Solid battery module and solid battery monomer |
| WO2022193935A1 (en) * | 2021-03-15 | 2022-09-22 | 荣耀终端有限公司 | Battery and electronic device |
-
2019
- 2019-04-29 CN CN201920607021.8U patent/CN209766537U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021217967A1 (en) * | 2020-04-30 | 2021-11-04 | 昆山宝创新能源科技有限公司 | Battery module, battery pack and vehicle |
| CN113745744A (en) * | 2020-05-29 | 2021-12-03 | 本田技研工业株式会社 | Solid battery module and solid battery monomer |
| CN111785885A (en) * | 2020-07-23 | 2020-10-16 | 中航锂电（洛阳）有限公司 | Battery pack and electric device |
| CN111785885B (en) * | 2020-07-23 | 2022-07-19 | 中创新航科技股份有限公司 | Battery pack and electric device |
| WO2022193935A1 (en) * | 2021-03-15 | 2022-09-22 | 荣耀终端有限公司 | Battery and electronic device |
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