CN213816293U - Novel soft-package power battery module structure - Google Patents
Novel soft-package power battery module structure Download PDFInfo
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- CN213816293U CN213816293U CN202120009116.7U CN202120009116U CN213816293U CN 213816293 U CN213816293 U CN 213816293U CN 202120009116 U CN202120009116 U CN 202120009116U CN 213816293 U CN213816293 U CN 213816293U
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- copper bar
- battery module
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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 relates to a battery module technical field discloses a novel soft-packaged power battery module structure, including shell and the battery module of setting in the shell, the battery module includes electric core group, the utmost point ear tip laminating of two adjacent electric cores in the electric core group forms laminating end, the both ends of electric core group are equipped with conflux copper bar carrier sub-assembly respectively, conflux copper bar carrier sub-assembly includes the plastic carrier, install conflux copper bar and positive/negative pole copper bar on the plastic carrier, be equipped with a plurality of utmost point ear holes side by side on the plastic carrier, utmost point ear hole and the input tooth portion cross arrangement of conflux copper bar, positive/negative pole copper bar is connected with the output of conflux copper bar, buckle and conflux copper bar or positive/negative pole copper bar fixed connection after the laminating end passes corresponding utmost point ear hole; the utility model provides a pair of novel soft packet of power battery module structure has solved the low problem of soft packet of battery space utilization in groups.
Description
Technical Field
The utility model relates to a battery module technical field, concretely relates to novel soft packet of power battery module structure.
Background
With the increasing severity of energy and environmental problems, countries around the world have increased the research and development efforts on new energy vehicles. The power battery is an important component of the electric vehicle, and the research on the power battery is imperative. The battery cell type on the market is too numerous and complicated to whole car, and the module is as the intermediate link of connecting electric core and battery system, and standard size becomes the inevitable trend of power battery module. And place more electric quantities in the module of fixed size, have great realistic meaning. Therefore, the structural design of the module is optimized, and the volumetric specific energy of the module can be effectively improved. Under the fixed prerequisite of overall dimension and installation dimension of module, current soft packet of power battery module structure adopts electric core to Block, then assembles copper bar carrier, plastics end plate and metal casing and assembles the module, and this kind of module form is limited to space utilization, and volume energy density is low.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the above-mentioned prior art, the utility model provides a novel soft packet of power battery module structure has solved the low problem of soft packet of battery space utilization in groups.
The utility model discloses the technical scheme who adopts does:
the utility model provides a novel soft packet of power battery module structure, includes the shell and sets up the battery module in the shell, the battery module includes the electric core group, the utmost point ear tip laminating of two adjacent electric cores in the electric core group forms the laminating end, the both ends of electric core group are equipped with the copper bar carrier sub-assembly that converges respectively, the copper bar carrier sub-assembly that converges includes the plastic carrier, the copper bar and the positive negative pole copper bar that converge are installed in the outside of plastic carrier, be equipped with a plurality of utmost point ear holes on the plastic carrier side by side, utmost point ear hole and the input tooth portion cross arrangement who converges the copper bar, positive negative pole copper bar is connected with the output that converges the copper bar, buckle after the laminating end passes corresponding utmost point ear hole and converge copper bar or positive negative pole copper bar fixed connection.
Because be equipped with a plurality of utmost point ear holes side by side on the plastic carrier, utmost point ear hole and the input tooth portion cross arrangement of the copper bar that converges, just/negative pole copper bar is connected with the output that converges the copper bar, buckle after the laminating end passes corresponding utmost point ear hole and converge the copper bar or just/negative pole copper bar fixed connection, the end of electric core utmost point ear is bent the back and is hugged closely with converging the copper bar or just/negative pole copper bar, realizes utmost point ear and the connection that converges the copper bar or just/negative pole copper bar through laser welding. The electric core group of this battery module is piled up by a plurality of electric cores and is formed, scribbles heat conduction structure between electric core and the electric core and glues. The aluminum plastic films at the lug positions at the two ends of the battery cell are bent to save the length and space, so that the total length of the battery cell is increased as much as possible. The problem of laminate polymer battery space utilization in groups low is solved.
Furthermore, an inclined plane is arranged at the upper end of the plastic carrier. The inclined plane design can fully utilize the inclined cutting part space on the upper part of the battery core, and the length of the outer connecting surface of the positive/negative electrode copper bar is increased.
Furthermore, a plurality of arc conical surfaces are arranged on the inner side of the plastic carrier, and the arc conical surfaces and the lug holes are arranged in a crossed mode. The circular arc conical surface can lead the battery core electrode lug to the electrode lug hole, and the installation is convenient and quick.
Further, the shell is an aluminum alloy shell.
Further, the aluminum alloy shell comprises a U-shaped bottom shell, an upper cover arranged at the upper end of the U-shaped bottom shell and outer end plates arranged at two ends of the U-shaped bottom shell, and heat conduction structural glue is filled between the aluminum alloy shell and the battery cell to realize the fixation and heat conduction of the battery cell. The U-shaped bottom shell, the upper cover and the outer end plate are connected into a whole by laser welding. And heat-conducting structural adhesive is filled between the aluminum alloy shell and the battery cell to realize the fixation and heat conduction of the battery cell.
Further, the outside end plate comprises an aluminum alloy end plate and a plastic end plate arranged on the inner side of the aluminum alloy end plate. Two plastics end plates and two aluminum alloy end plates preassemble, then install in converging the outer side of copper bar carrier sub-assembly, accomplish insulating isolation.
Further, the electric core group is formed by stacking 12 electric cores, and heat-conducting structural adhesive is coated between the adjacent electric cores.
Further, the upper and lower terminal surface of electric core group is pasted respectively and is had the insulating film, the both sides of electric core group are equipped with the curb plate, the curb plate passes through heat conduction structure and glues and the laminating of electric core group, two of electric core group both ends converge the copper bar carrier sub-assembly and form the inner frame body with the both ends built-up connection of two curb plates respectively, the inner frame body is fixed the electric core group together steadily.
The copper bar that converges is integrated to on the copper bar carrier sub-assembly that converges, then two copper bar carrier sub-assemblies that converge pass utmost point ear and the frame construction after piling up from the both ends of electric core group combine, and the utmost point ear of wearing out utmost point ear hole links together through laser welding with the copper bar that converges or positive/negative pole copper bar, accomplishes the series-parallel connection, and this laminate polymer battery module's degree of automation is high, stability is strong, the security is good.
The busbar carrier sub-assembly passes through side buckle hole and curb plate lock, and the frame constitutes an overall frame structure in the formation, and the size is injectd in length, width, height direction, fixes the electric core group together steadily.
Furthermore, the upper end and the lower end of the cell group are provided with side plates, the two ends of each side plate are combined and connected with the busbar carrier assembly to form an inner frame body, and the two sides of the cell group are isolated from the aluminum alloy shell by foam.
Furthermore, the joint end at the outermost side of the electric core group is bent inwards. The design limit of the pole ear hole of the battery module in the length direction can be avoided.
The utility model has the advantages that: because be equipped with a plurality of utmost point ear holes side by side on the plastic carrier, utmost point ear hole and the input tooth portion cross arrangement of the copper bar that converges, just/negative pole copper bar is connected with the output that converges the copper bar, buckle after the laminating end passes corresponding utmost point ear hole and converge the copper bar or just/negative pole copper bar fixed connection, the end of electric core utmost point ear is bent the back and is hugged closely with converging the copper bar or just/negative pole copper bar, realizes utmost point ear and the connection that converges the copper bar or just/negative pole copper bar through laser welding. The electric core group of this battery module is piled up by a plurality of electric cores and is formed, scribbles heat conduction structure between electric core and the electric core and glues. The aluminum plastic films at the lug positions at the two ends of the battery cell are bent to save the length and space, so that the total length of the battery cell is increased as much as possible. The problem of laminate polymer battery space utilization in groups low is solved.
Drawings
Fig. 1 is a schematic exploded view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic diagram of the inner frame structure of the present invention.
Fig. 4 is a schematic structural view of the bus bar copper bar carrier assembly of the present invention.
Fig. 5 is a schematic structural diagram of the present invention.
In the figure: a cell group 1; 2, a tab; a fitting end 3; a busbar carrier assembly 4; 4.1 of plastic carrier; a busbar 4.2; a positive/negative copper bar 4.3; an outer junction surface 4.4; a polar ear hole 5; a bevel 6; a circular arc conical surface 7; a U-shaped bottom case 8; an upper cover 9; an outer end plate 10; an aluminum alloy end plate 10.1; a plastic end plate 10.2; an insulating film 11; side plates 12; an inner frame 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1-5, this embodiment provides a novel soft-packaged power battery module structure, including shell and the battery module that sets up in the shell, the battery module includes electric core group 1, 2 ends of utmost point ear of two adjacent electric cores in electric core group 1 laminate mutually and form laminating end 3, the both ends of electric core group 1 are equipped with the copper bar carrier sub-assembly 4 that converges respectively, copper bar carrier sub-assembly 4 that converges includes plastic carrier 4.1, plastic carrier 4.1 installs in the outside and converges copper bar 4.2 and positive/negative pole copper bar 4.3, be equipped with a plurality of utmost point ear holes 5 on the plastic carrier 4.1 side by side, utmost point ear hole 5 and the input tooth portion cross arrangement who converges copper bar 4.2, positive/negative pole copper bar 4.3 is connected with the output that converges copper bar 4.2, buckle after laminating end 3 passes corresponding utmost point ear hole 5 and converge copper bar 4.2 or positive/negative pole copper bar 4.3 fixed connection.
Because the plastic carrier 4.1 is equipped with a plurality of utmost point ear holes 5 side by side, utmost point ear hole 5 and the input tooth portion cross arrangement of the copper bar 4.2 that converges, just/negative pole copper bar 4.3 is connected with the output that converges copper bar 4.2, laminating end 3 is buckled and is converged copper bar 4.2 or just/negative pole copper bar 4.3 fixed connection after passing corresponding utmost point ear hole 5, the end of electric core utmost point ear 2 is buckled the back and is hugged closely with the copper bar 4.2 that converges or just/negative pole copper bar 4.3, realize utmost point ear 2 and converge copper bar 4.2 or just/negative pole copper bar 4.3's connection through laser welding. The battery core group 1 of the battery module is formed by stacking a plurality of battery cores, and heat conduction structure glue is coated between the battery cores. The aluminum plastic films at the 2 positions of the lugs at the two ends of the battery cell are bent to save the length and space, so that the total length of the battery cell is increased as much as possible. The problem of laminate polymer battery space utilization in groups low is solved.
Specifically, the thickness of the busbar 4.2 is 2.5 mm.
Example 2:
this embodiment is optimized based on embodiment 1 described above.
The upper end of the plastic carrier 4.1 is provided with an inclined plane 6. The design of the inclined plane 6 can fully utilize the inclined cutting part space on the upper part of the electric core, and the length of the external connection surface 4.4 of the positive/negative electrode copper bar 4.3 is increased.
Example 3:
this embodiment is optimized based on embodiment 2 described above.
The inner side of the plastic carrier 4.1 is provided with a plurality of arc conical surfaces 7, and the arc conical surfaces 7 and the pole ear holes 5 are arranged in a crossed mode. The arc conical surface 7 can guide the battery core lug 2 to the lug hole 5, and the installation is convenient and rapid.
Example 4:
this embodiment is optimized based on embodiment 3 described above.
The shell is aluminum alloy shell, and aluminum alloy shell includes U-shaped drain pan 8, sets up upper cover 9 in U-shaped drain pan 8 upper end and locates the outside end plate 10 at U-shaped drain pan 8 both ends, pours into heat conduction structure between aluminum alloy shell and the electric core and glues the fixed and heat conduction that realize electric core. The U-shaped bottom shell 8, the upper cover 9 and the outer end plate 10 are integrally connected to each other by laser welding. And heat-conducting structural adhesive is filled between the aluminum alloy shell and the battery cell to realize the fixation and heat conduction of the battery cell.
Example 5:
this embodiment is optimized based on embodiment 4 described above.
The outer end plate 10 comprises an aluminium alloy end plate 10.1 and a plastic end plate 10.2 mounted inside the aluminium alloy end plate. Two plastic end plates 10.2 and two aluminum alloy end plates 10.1 are preassembled and then mounted on the outer side of the busbar carrier assembly 4, thus completing the insulation and isolation.
Example 6:
this embodiment is optimized based on embodiment 5 described above.
The electric core group 1 is formed by stacking 12 electric cores, and heat-conducting structural adhesive is coated between the adjacent electric cores.
Example 7:
this embodiment is optimized based on embodiment 6 described above.
The upper and lower terminal surface of electric core group 1 is pasted respectively and is had insulating film 11, and the both sides of electric core group 1 are equipped with curb plate 12, and curb plate 12 is glued with electric core group 1 laminating through heat conduction structure, and two of electric core group 1 both ends converge copper bar carrier sub-assembly 4 respectively with the both ends built-up connection of two curb plates 12 form inner frame body 13, in this embodiment, converge copper bar carrier sub-assembly 4 and curb plate 12 and pass through the fastener lock joint, and inner frame body 13 is fixed electric core group 1 together steadily.
The copper bar 4.2 that converges is integrated to converging on copper bar carrier sub-assembly 4, then two copper bar carrier sub-assemblies 4 that converge pass utmost point ear 2 from the both ends of electric core group 1 and combine with the frame construction after the pile, and the utmost point ear 2 that wears out utmost point ear hole 5 links together with copper bar 4.2 or positive/negative pole copper bar 4.3 that converge through laser welding, accomplishes the connection in series-parallel, and this laminate polymer battery module's degree of automation is high, stability is strong, the security is good.
The busbar carrier assembly 4 is buckled with the side plate 12 through the side buckling hole to form an integral frame structure formed by an inner frame body 13, the size of the inner frame structure is limited in the length, width and height directions, and the electric core group 1 is stably fixed together.
Example 8:
this embodiment is optimized based on embodiment 7 described above.
The upper and lower end of the cell group 1 is provided with a side plate 12, the two ends of the side plate 12 and the bus copper bar carrier assembly 4 are combined and connected to form an inner frame body 13, in this embodiment, the bus copper bar carrier assembly 4 is buckled with the side plate 12 through a side buckling hole, and the two sides of the cell group 1 are isolated from the aluminum alloy shell by foam.
Example 9:
this embodiment is optimized based on embodiment 8 described above.
The joint end 3 at the outermost side of the electric core group 1 is bent inwards. The design restriction of the tab hole 5 of the battery module in the length direction can be avoided.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a novel soft packet of power battery module structure which characterized in that: including shell and the battery module of setting in the shell, the battery module includes electric core group, the utmost point ear tip laminating of two adjacent electric cores in the electric core group forms the laminating end, the both ends of electric core group are equipped with the copper bar carrier sub-assembly that converges respectively, the copper bar carrier sub-assembly that converges includes the plastic carrier, install on the plastic carrier and converge copper bar and positive/negative pole copper bar, be equipped with a plurality of utmost point ear holes on the plastic carrier side by side, utmost point ear hole and the input tooth portion cross arrangement who converges the copper bar, positive/negative pole copper bar is connected with the output that converges the copper bar, buckle after the laminating end passes corresponding utmost point ear hole and converge copper bar or positive/negative pole fixed connection.
2. The novel soft package power battery module structure of claim 1, characterized in that: the upper end of the plastic carrier is provided with an inclined plane.
3. The novel soft package power battery module structure of claim 1, characterized in that: the inner side of the plastic carrier is provided with a plurality of arc conical surfaces, and the arc conical surfaces and the lug holes are arranged in a crossed mode.
4. The novel soft package power battery module structure of claim 1, characterized in that: the shell is an aluminum alloy shell.
5. The novel soft package power battery module structure of claim 4, characterized in that: the aluminum alloy shell comprises a U-shaped bottom shell, an upper cover arranged at the upper end of the U-shaped bottom shell and outer end plates arranged at two ends of the U-shaped bottom shell, and heat conduction structural glue is filled between the aluminum alloy shell and the battery cell to realize the fixation and heat conduction of the battery cell.
6. The novel soft package power battery module structure of claim 5, characterized in that: the outside end plate includes aluminum alloy end plate and installs the inboard plastics end plate at aluminum alloy end plate.
7. The novel soft package power battery module structure of claim 1, characterized in that: the electric core group is piled up by 12 electric cores and forms, scribbles heat conduction structure between the adjacent electric core and glues.
8. The novel soft package power battery module structure of claim 1, characterized in that: the upper end face and the lower end face of the electric core group are respectively pasted with an insulating film, two sides of the electric core group are provided with side plates, and two confluence copper bar carrier assemblies at two ends of the electric core group are respectively connected with two ends of the two side plates in a combined mode to form an inner frame body.
9. The novel soft package power battery module structure of claim 4, characterized in that: the upper and lower end of the electric core group is provided with a side plate, the two ends of the side plate are combined and connected with the confluence copper bar carrier assembly to form an inner frame body, and the two sides of the electric core group are isolated from the aluminum alloy shell by adopting foam.
10. The novel soft package power battery module structure of claim 1, characterized in that: the joint end on the outermost side of the electric core group is bent inwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120009116.7U CN213816293U (en) | 2021-01-04 | 2021-01-04 | Novel soft-package power battery module structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120009116.7U CN213816293U (en) | 2021-01-04 | 2021-01-04 | Novel soft-package power battery module structure |
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| Publication Number | Publication Date |
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| CN213816293U true CN213816293U (en) | 2021-07-27 |
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| CN202120009116.7U Active CN213816293U (en) | 2021-01-04 | 2021-01-04 | Novel soft-package power battery module structure |
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| CN (1) | CN213816293U (en) |
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- 2021-01-04 CN CN202120009116.7U patent/CN213816293U/en active Active
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