CN207818733U - Battery modules - Google Patents
Battery modules Download PDFInfo
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- CN207818733U CN207818733U CN201820253845.5U CN201820253845U CN207818733U CN 207818733 U CN207818733 U CN 207818733U CN 201820253845 U CN201820253845 U CN 201820253845U CN 207818733 U CN207818733 U CN 207818733U
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- interconnecting piece
- pole
- piece
- connecting portion
- battery modules
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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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- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
This application involves energy storage device technical field more particularly to a kind of battery modules, including：Shell, including mutually cover the end plate and shell of conjunction；Multiple battery cells, multiple battery cells are set in the shell, form battery pack；Pole is exported, the end plate is set to；Adapter；First pliable folding piece, including pole interconnecting piece and the first connecting portion relative to the bent connection of pole interconnecting piece；With the second pliable folding piece, including switching interconnecting piece and the second connecting portion relative to the switching bent connection of interconnecting piece；One end of the adapter is connect with the battery pack, and the other end is connect with the switching interconnecting piece；The second connecting portion is connect with the first connecting portion；The pole interconnecting piece is connect with the output pole.The application can again be covered after first connecting portion is connect with second connecting portion and close shell and end plate, and the assembly difficulty of battery modules is reduced.
Description
Technical field
This application involves energy storage device technical field more particularly to a kind of battery modules.
Background technology
Existing battery modules include end plate, shell, battery connecting piece, adapter, export pole and multiple battery cells,
End plate connect to form shell with shell, and multiple battery cells are set in shell, and by battery connecting piece series, parallel or
Connection in series-parallel connects, and is then connect with output pole by adapter, exports pole external part plate, and by nut check, will
The output stage of battery cell is led to outside shell.
In battery modules assembly, some battery modules need first to assemble output pole and end plate, battery cell and turn
Fitting is assembled together, but uses above-mentioned this mode, it is difficult to again connect adapter with output pole.
Utility model content
This application provides a kind of battery modules, can solve the above problems.
This application provides a kind of battery modules, including：
Shell, including mutually cover the end plate and shell of conjunction；
Multiple battery cells, multiple battery cells are set in the shell, form battery pack；
Pole is exported, the end plate is set to；
Adapter；
First pliable folding piece, including pole interconnecting piece and the first connection relative to the bent connection of pole interconnecting piece
Portion；With
Second pliable folding piece, including switching interconnecting piece and the second connection relative to the switching bent connection of interconnecting piece
Portion；
One end of the adapter is connect with the battery pack, and the other end is connect with the switching interconnecting piece；Described second
Interconnecting piece is connect with the first connecting portion；The pole interconnecting piece is connect with the output pole.
Optionally, at least one of the described first pliable folding piece, the second pliable folding piece and described adapter are provided with
Fuse area, on the more described first pliable folding piece of area of passage of the fuse area, the second pliable folding piece or the adapter
The area of passage in other regions is small.
Optionally, the described first pliable folding piece further includes connecting the transition of the pole interconnecting piece and the first connecting portion
Interconnecting piece, the fuse area are set to the transition connection portion.
Optionally, the described first pliable folding piece further includes connecting the transition of the pole interconnecting piece and the first connecting portion
Interconnecting piece, the transition connection portion extend to the end plate along the edge of the short transverse of the battery cell.
Optionally, the battery modules further include the first insulating part, and first insulating part is set to the end plate and institute
It states between transition connection portion between the adapter and the pole interconnecting piece；
The transition connection portion passes through first insulating part.
Optionally, further include the second insulating part, second insulating part is set to the pole interconnecting piece and the end plate
Between.
Optionally, the first connecting portion is connected to the side that the described second pliable folding piece connects the adapter.
Optionally, the second connecting portion be connected to it is described switching interconnecting piece along the battery cell thickness direction one
Side, and extend to the middle part of the battery pack along the direction far from the switching interconnecting piece.
Optionally, the adapter is in hierarchic structure, and the adapter connects described in the part relatively connection of the battery pack
The part of switching interconnecting piece is close to the end plate；
The switching interconnecting piece is connected to the adapter close to the side of the end plate.
Optionally, each bending place of the described first pliable folding piece and the second pliable folding piece is provided with bending impression.
Technical solution provided by the present application can reach following advantageous effect：
Battery modules provided herein, by increasing the first pliable folding piece and the second pliable folding piece, in battery modules
When assembly, first shell, battery cell, adapter and the second pliable folding piece can be linked together, end plate, output pole and the
One pliable folding piece links together, and can bend first connecting portion and second connecting portion at this time, and first connecting portion is made to connect with pole
Socket part is in bending structure, and second connecting portion is in bending structure with switching interconnecting piece, then first connecting portion and second connecting portion are connected
It connects, again bends second connecting portion after connection, make its reinstatement state, while continuing to bend first connecting portion, make end plate and shell
Body lid closes.Obviously, this battery modules, since the first pliable folding piece and the second pliable folding piece are easy to bend, in assembling process
The relative position that end plate and shell can be changed by the bending of first connecting portion and second connecting portion, in first connecting portion and the
It is covered again after the connection of two interconnecting pieces and closes shell and end plate, to reduce the assembly difficulty of battery modules；It is needed simultaneously in battery modules
When sealing, sealing element can first be assembled with end plate, output pole, then subsequently assembled again, therefore, this mode
It applies also for needing the battery modules sealed between output pole and end plate.
It should be understood that above general description and following detailed description is merely exemplary, this can not be limited
Application.
Description of the drawings
Fig. 1 is the structure of a kind of specific embodiment end plate and the non-lid conjunction state of shell of battery modules provided herein
Schematic diagram；
Fig. 2 is the partial sectional view of battery modules shown in Fig. 1；
Fig. 3 is the partial sectional view of another specific embodiment of battery modules provided herein；
Fig. 4-Fig. 6 be battery modules provided herein a kind of specific embodiment assembling process in each state structure
Schematic diagram；
Fig. 7 is the structural schematic diagram of adapter in a kind of specific embodiment of battery modules provided herein；
Fig. 8 is in a kind of specific embodiment of battery modules provided herein, and adapter and the second pliable folding piece connect
The structural schematic diagram connect；
Fig. 9 is in a kind of specific embodiment of battery modules provided herein, and adapter and the second pliable folding piece exist
Structural schematic diagram when Fig. 6 states；
Figure 10 is in a kind of specific embodiment of battery modules provided herein, after the completion of the first pliable folding piece assembly
Structural schematic diagram；
Figure 11 is structural schematic diagram of the first pliable folding piece in Fig. 6 states；
Figure 12 is the structural representation of the first insulating part in a kind of specific embodiment of battery modules provided herein
Figure；
Figure 13 is the structural representation of the second insulating part in a kind of specific embodiment of battery modules provided herein
Figure.
Reference numeral：
10- shells；
11- end plates；
The marginal zones 111-；
The depressed areas 112-；
12- shells；
20- battery cells；
30- exports pole；
31- trunk portions；
32- flange parts；
40- adapters；
41- battery connection parts；
42- bends interconnecting piece；
The first pliable folding pieces of 50-；
51- pole interconnecting pieces；
52- first connecting portions；
53- transition connection portions；
54- fuse areas；
The second pliable folding pieces of 60-；
61- switching interconnecting pieces；
62- second connecting portions；
63- bends impression；
70- battery connecting pieces；
71- insulating sealers；
The first insulating parts of 80-；
81- first parts；
82- second parts；
83- Part III；
84- annular grooves；
The second insulating parts of 90-；
91- main parts；
92- bending parts.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
Specific implementation mode
It is described in further detail below by specific embodiment and in conjunction with attached drawing to the application.
As shown in figures 1-13, the embodiment of the present application provides a kind of battery modules, including shell 10, multiple battery cells
20, pole 30, adapter 40, the first pliable folding piece 50 and the second pliable folding piece 60 are exported, shell 10 includes the end that mutually lid closes
Plate 11 and shell 12；Multiple battery cells 20 are set in shell 10, form battery pack；Output pole 30 is set to end plate 11；
First pliable folding piece 50 includes pole interconnecting piece 51 and the first connecting portion 52 relative to the 51 bent connection of pole interconnecting piece, i.e.,
When needed, first connecting portion 52 can be bent relative to pole interconnecting piece 51.Second pliable folding piece 60 includes that switching connects
Socket part 61 and relative to switching 61 bent connection of interconnecting piece second connecting portion 62, i.e., when needed, second connecting portion
62 can integrally bend relative to switching interconnecting piece 61, can also only be bent relative to switching interconnecting piece 61 part.Adapter 40
One end connect with battery pack, the other end with switching interconnecting piece 61 connect, second connecting portion 62 is connect with first connecting portion 52；Pole
Column interconnecting piece 51 is connect with output pole 30.
Above-mentioned battery modules, are provided with the first pliable folding piece 50 and the second pliable folding piece 60 can when battery modules are assembled
First shell 12, battery cell 20 and adapter 40, the second pliable folding piece 60 to be linked together, end plate 11, output pole 30
It links together with the first pliable folding piece 50, as shown in Figure 4, Figure 5；Then, first connecting portion 52 and second connecting portion 62 are bent,
Make first connecting portion 52 with pole interconnecting piece 51 in bending structure, second connecting portion 62 is in bending structure with switching interconnecting piece 61,
As shown in Fig. 9, Figure 11, specifically, first connecting portion 52 is bent to the side far from end plate 11, second connecting portion 62 is to separate
The side of battery pack is bent；Then, then by first connecting portion 52 with second connecting portion 62 it connect, as shown in Figure 6；Then,
After one interconnecting piece 52 is connect with second connecting portion 62, by bending second connecting portion 62 along aforementioned opposite direction, it is made to restore former
Shape, therewith, first connecting portion 52 also continue to bend, and keep first connecting portion 52 close to end plate 11, as shown in Figure 1, the first connection
With 11 less parallel of end plate, most rear cover closes end plate 11 and shell 12 for portion 52, second connecting portion 62.Obviously, this battery modules,
It, can be pliable by bending first in assembling process since the first pliable folding piece 50 and the second pliable folding piece 60 are easy to bend
Part 50 and the second pliable folding piece 60 change the relative position of end plate 11 and shell 12, pliable in the first pliable folding piece 50 and second
Part 60 covers again after connecting closes end plate 11 and shell 12, to reduce the assembly difficulty of battery modules.
Wherein, pole interconnecting piece 51 and output pole 30 between, switching interconnecting piece 61 and adapter 40 between, adapter 40
It can be by being welded to connect between battery pack, between first connecting portion 52 and second connecting portion 62, electricity using the above structure
Pond module can make the company of the two when first connecting portion 52 and second connecting portion 62 are welded by bending second connecting portion 62
Position is connect far from battery pack, welding energy when being welded both to avoid causes to damage to battery pack, improves battery modules
Safety.
With the use of battery modules, producer proposes sealing requirements to battery modules, need output pole 30 with
Increase insulating sealer 71 between end plate 11, (i.e. battery modules do not include the first pliable folding piece 50 using adapter 40 is only arranged
With the second pliable folding piece 60) structure, due to needing to seal, when assembly, need first will output pole 30 and end plate 11 it is close
Encapsulation is matched, and battery cell 20 and adapter 40 are assembled together, and lacks the mistake of the first pliable folding piece 50 and the second pliable folding piece 60
It crosses, pole 30 and adapter 40 will be exported by, which causing, to weld, and increase the assembly difficulty of battery modules.
In the application, battery modules further include insulating sealer 71, and insulating sealer 71 is set to end plate 11 and output stage
Between column 30, so as to insulate between output pole 30 and end plate 11, end plate 11 is avoided to charge；And the insulating sealer 71 seal it is defeated
Go out the gap between pole 30 and end plate 11, end plate 11 and the insulation effect of output pole 30 on the one hand can be made more preferable, it is another
Aspect can improve the leakproofness of battery modules.It in this embodiment, can be first by insulating sealer 71 when battery modules are assembled
It is assembled together with end plate 11, output pole 30, (can be the length of battery cell 20 since it is axial along it to export pole 30 at this time
Degree direction Y) both ends do not hindered by other component, thus, it is easy to insulating sealer 71 apply pressing force, to ensure battery
The leakproofness of module；Then adapter 40 is connected to output pole by the first pliable folding piece 50 and the second pliable folding piece 60 again
30, it is then subsequently assembled again, it is clear that can also be suitable for by increasing the first pliable folding piece 50 and the second pliable folding piece 60
The installation for exporting the battery modules of setting insulating sealer 71 between pole 30 and end plate 11, to make battery modules be easy to fill
Match, while realizing the sealing of battery modules.
It should be noted that the first pliable folding piece 50, the second pliable folding piece 60 are small compared with the rigidity of adapter 40, it is easy to curved
Folding, usually by the way that bending can be realized manually, optionally, the first pliable folding piece 50 is identical with the material of the second pliable folding piece 60,
It is compliant conductive material.
Battery modules further include battery connecting piece 70, and multiple battery cells 20 are connected by battery connecting piece 70, form electricity
Pond group, there are two output stages for battery pack tool, correspondingly, adapter 40 and the first pliable folding piece 50, the second pliable folding piece 60, output
There are two pole 30 is also respectively provided with, two output stages and two the first pliable folding pieces 50, two second of adapter 40, two are pliable
60, two output poles 30 of folding piece connect one to one.The respectively positive output stage of two of which output stage and cathode output stage,
Two output poles 30 are respectively that anode output pole and cathode export pole, and two output stages can be arranged in shell 12 along electricity
The both ends of the length direction Y of pond monomer 20, two end plates 11 are respectively set anode output pole and cathode output pole, and at this time two
A output pole 30 is preferably placed at the middle part of short transverse Z of the battery modules along battery cell 20, in order to battery modules and its
The connection and assembly of its component；Certainly, positive output stage and cathode output stage can also be set to shell 12 along electricity by battery pack
The same end of the length direction Y of pond monomer 20, correspondingly, battery modules can also set anode output pole and cathode output pole
Set the end plate 11 in the same side.No matter which kind of set-up mode, each output stage adapter 40 corresponding thereto, the first pliable folding piece
50, the second pliable folding piece 60, the connection type of output pole 30 can be identical, below corresponding thereto with one of output stage
Adapter 40, the first pliable folding piece 50, the second pliable folding piece 60, export pole 30 connection for illustrate.
Specifically, with reference to shown in figure 1,2, shell 12 is cylindrical in shape structure, and end plate 11 is covered on the both ends of shell 12, with sealing
Shell 12.With reference to shown in figure 1- Fig. 3, end plate 11 is provided with pole column hole；Output pole 30 includes trunk portion 31 and is connected to cylinder
The flange part 32 of 31 periphery of portion, trunk portion 31 stretch out end plate 11, close to the side of battery pack, i.e., flange part 32 is set to end plate 11
Trunk portion 31 is inserted into pole column hole, and along the axis of pole column hole, the projection of flange part 32 is at least partially disposed at outside the projection of pole column hole,
To play position-limiting action to output pole 30.At this point, pole interconnecting piece 51 and trunk portion 31 are close to the side of battery pack and flange
Portion 32 is all connected with close to the side of battery pack.
Above-mentioned adapter 40, the first pliable folding piece 50, the second pliable folding piece 60 and battery connecting piece 70 can be plate
Structure, can by the direct bending forming of sheet metal component, optionally, the first pliable folding piece 50, the second pliable folding piece 60 thickness relatively turn
The thickness of fitting 40 is small, so that the first pliable folding piece 50 and the second pliable folding piece 60 are more pliable in assembling process.Wherein, thickness
Refer to the size of the length direction Y along battery cell 20.
Wherein, after battery modules molding assembly, first connecting portion 52 can be oppositely arranged with pole interconnecting piece 51.It is a kind of
In embodiment, first connecting portion 52 is shifted to install with pole interconnecting piece 51, specifically, with reference to figure 10, Figure 11, the first pliable folding piece
50 further include the transition connection portion 53 of connecting post interconnecting piece 51 and first connecting portion 52, and transition connection portion 53 is to end plate 11 along electricity
The edge of the short transverse Z of pond monomer 20 extends, i.e., transition connection portion 53 is connected to pole interconnecting piece 51 and leans on 11 edge of proximal plate
Side, it is and defeated by increasing transition connection portion 53, first connecting portion 52 to be made to be set to the outside of output pole 30 as far as possible
Go out pole 30 to be staggeredly located, to reduce size of the battery modules on above-mentioned length direction Y.
It, can be curved relative to transition connection portion 53 when first connecting portion 52 is bent when equipped with transition connection portion 53
Folding, after battery modules molding assembly, first connecting portion 52 is oppositely arranged with transition connection portion 53, as shown in Fig. 2-Fig. 3, Figure 10,
First connecting portion 52 and transition connection portion 53 form U-shaped structure after battery modules molding assembly so that first connecting portion 52 with
The link position of adapter 40 avoids output pole 30 completely.
With reference to figure 2, in order to improve the energy density of battery modules, end plate 11 has marginal zone 111 and relative to marginal zone
111 depressed areas 112 being recessed to the direction far from battery pack, 30 part of output pole are placed in the depressed area 112, at this point,
Transition connection portion 53 can be oppositely arranged with marginal zone 111.Further, pole interconnecting piece 51 is placed in the depressed area 112,
Preferably to improve the energy density of battery modules, in this embodiment, transition connection portion 53 is in ladder with pole interconnecting piece 51
Structure, the two can be by bending formings, and in order to alleviate the stress that bending generates, transition connection portion 53 can with pole interconnecting piece 51
To be connected by multiple arcs structural transition.
In a kind of embodiment, at least one of the first pliable folding piece 50, the second pliable folding piece 60 and adapter 40 are provided with
Fuse area 54, that is to say, that the first pliable folding piece 50, the second pliable folding piece 60 and adapter 40 can be both provided with fuse area
54, can also it one of wherein or both only be provided with fuse area 54, the area of passage of fuse area 54 is compared with the first pliable folding piece
50, the area of passage in other regions is small on the second pliable folding piece 60 or adapter 40, for example, when the setting of the first pliable folding piece 50 is molten
When disconnected area 54, the area of passage of fuse area 54 is small compared with the area of passage in other regions in the first pliable folding piece 50, when second pliable
When fuse area 54 is arranged in folding piece 50, the area of passage of the area of passage of fuse area 54 compared with other regions in the second pliable folding piece 50
It is small, when fuse area 54 is arranged in adapter 40, the area of passage of the area of passage of fuse area 54 compared with other regions on adapter 40
It is small.Specifically, one or more can be arranged in above-mentioned fuse area 54, multiple being provided with, when such as two, each fuse area 54
Area of passage can be equal, can not also be equal.After such setting, when the electric current in battery modules is too big, such as overcharges and lead
The electric current of cause is excessive, and fuse area 54 can be blown, and the first pliable folding piece 50, the second pliable folding piece 60 or adapter 40 can be molten
It is disconnected at disconnected area 54, to disconnect the current loop between output pole 30 and battery pack, reduces that electric current is excessive to be caused to catch fire
Risk, to improve the safety of battery modules.
Above-mentioned fuse area 54 can be formed by the way that the modes such as through-hole are arranged, as shown in Figure 6；Can also by be arranged notch,
Or the thickness at reduction fuse area 54, make the thickness of fuse area 54 compared with the first pliable folding piece 50, the second pliable folding piece 60 and turns
The thickness in other regions is small on fitting 40.Wherein, thickness refers to the size along above-mentioned length direction Y.
As mentioned previously, the first pliable folding piece 50, the rigidity of the second pliable folding piece 60 are small compared with adapter 40, in three's thickness
When spending equal, the first pliable folding piece 50, the second pliable folding piece 60 are more easy to fuse, and therefore, fuse area 54 is preferably disposed on first easily
At least one of bending member 50 and the second pliable folding piece 60, especially in the first pliable folding piece 50, the thickness of the second pliable folding piece 60
Degree, to shorten the fusing time of fuse area 54, further increased the safety of battery modules compared with adapter 40 hours.
When the first pliable folding piece 50 includes transition connection portion 53, fuse area 54 can be set to transition connection portion 53, by
It is not welded with any part in transition connection portion 53, therefore, fuse area 54 is arranged at this, welded in each junction
When, welding energy will not impact fuse area 54 substantially, and then improve the fusing precision of fuse area 54.
As shown in Figure 7, Figure 8, second connecting portion 62 is connected to thickness direction X of the switching interconnecting piece 61 along battery cell 20
Side, and extend to the middle part of battery pack along the direction far from switching interconnecting piece 61, in this way, first connecting portion 52 is connect with second
The junction in portion 62 can be close along the middle part of above-mentioned thickness direction X to battery modules, so that output pole 30 is located at as far as possible
Battery modules are convenient for the assembly of battery modules and other components along the middle part of above-mentioned thickness direction X.
Optionally, second connecting portion 62 and switching interconnecting piece 61 are strip structure, and switching interconnecting piece 61 is along battery cell
20 short transverse Z extends, and second connecting portion 62 extends along the thickness direction X of battery cell 20, i.e., the second pliable folding piece 60 is in L
Type structure.
As described above, in bending, second connecting portion 62 can integrally be bent, and only can also partly be bent, such as Fig. 9 institutes
Show, shows that the only part of second connecting portion 62 is bent relative to switching interconnecting piece 61, to increase the intensity of the second pliable folding piece 60；
And make to be spaced a distance between switching interconnecting piece 61 and first connecting portion 52, to switching when preventing from welding first connecting portion 52
Interconnecting piece 61 and the connection of adapter 40 impact, and improve the reliability of battery modules.
It is to be appreciated that battery cell 20 includes head cover and the terminal for being set to head cover, terminal generally protrudes head cover, in shape
After battery pack, the terminal of series, parallel or connection in series-parallel end can be used as output stage, i.e. adapter 40 to be connect with terminal,
In order to ensure the positional precision of adapter 40 and battery pack, adapter 40 is in hierarchic structure, and the one end for connecting battery pack relatively connects
Proximal plate 11 is leaned in the one end for switching through connection section 61, and specifically, adapter 40 includes the battery connection part 41 being connect with battery pack
With the bending interconnecting piece 42 being connect with switching interconnecting piece 61, battery connection part 41 is with bending interconnecting piece 42 along above-mentioned short transverse Z
Setting, and battery connection part 41 forms hierarchic structure with bending interconnecting piece 42, the relatively bending interconnecting piece 42 of battery connection part 41 is close
End plate 11 improves the position of the two connection to limit the relative position of adapter 40 and battery pack by the step of hierarchic structure
Precision.
Switching interconnecting piece 61 is connected to the side that adapter 40 leans on proximal plate 11, that is, interconnecting piece 61 of transferring is connected to bending and connects
Socket part 42 leans on the side of proximal plate 11, and especially when the thickness of the second pliable folding piece 60 is less than the thickness of adapter 40, second connects
Socket part 62 be connected to bending interconnecting piece 42 lean on proximal plate 11 side, when the two weld, bend interconnecting piece 42 can absorb compared with
More welding energies reduces damage of the welding energy to battery cell 20.Especially when adapter 40 is hierarchic structure, second connects
Socket part 62 is connected to the side that bending interconnecting piece 42 leans on proximal plate 11, in this way, second connecting portion 62 can make full use of adapter
40 thickness of itself, to further increase the energy density of battery modules.Certainly, second connecting portion 62 can also be connected to bending
Side of the interconnecting piece 42 far from end plate 11.
A kind of embodiment, first connecting portion 52 and bending interconnecting piece 42 are respectively arranged at the both sides of the second pliable folding piece 60,
After such setting, battery modules need to match first connecting portion 52 on above-mentioned length direction Y and bend 42 the two of interconnecting piece
Thickness.In another embodiment, first connecting portion 52 is set to the side of 60 connection adapter piece 40 of the second pliable folding piece, that is,
It says, first connecting portion 52 and bending interconnecting piece 42 are located at the same side of the second pliable folding piece 60, after such setting, battery modules
On above-mentioned length direction Y, it is only necessary to it matches first connecting portion 52 and bends thickness one of thicker in interconnecting piece 42, without
The sum of the thickness for both needing to match simultaneously, to further increase the energy density of battery modules.Further, in adapter
40 be hierarchic structure, and when transition connection portion 53 and the formation U-shaped structure of first connecting portion 52, first connecting portion 52 is connected with bending
Portion 42 is located at the second side of the pliable folding piece 60 far from end plate 11, at this point, second connecting portion 62 is inserted into the U-type groove of U-shaped structure,
I.e. transition connection portion 53, second connecting portion 62, first connecting portion 52 are stacked, and this structure can make full use of adapter 40
The thickness of the thickness of itself and the first pliable folding piece 50 makes adapter 40, the first pliable folding piece 50, the second pliable folding piece 60
Size after three's assembly in above-mentioned length direction Y is as smaller as possible, preferably to improve the energy density of battery modules.Its
In, above-mentioned thickness refers to the size along above-mentioned length direction Y.
As above description, the first pliable folding piece 50, the second pliable folding piece 60 need to carry out more in battery modules assembly
Secondary bending, in order to avoid it is broken in bending place, in pole interconnecting piece 51, transition connection portion 53 and first connecting portion 52,
Arbitrary neighborhood is both connected smoothly, to increase the break resistance of the first pliable folding piece 50；62 He of second connecting portion
Switching interconnecting piece 61 is connected smoothly, to increase the break resistance of the second pliable folding piece 60.Such as in the first pliable folding piece 50
When molding, pole interconnecting piece 51 can as far as possible be formed with 53 direct plane transition of transition connection portion when the two is bent relatively
It is bent in an arc shape, specifically, as shown in Figure 10.
Further, in order to keep the first pliable folding piece 50, the second pliable folding piece 60 more pliable, and the position of bending is improved
Set precision, each bending place of the first pliable folding piece 50 and the second pliable folding piece 60 is provided with bending impression 63, such as is connected first
Portion 52 and the junction of transition connection portion 53 (when transition connection portion 53 is not arranged, are connect in first connecting portion 52 with pole is crossed
The junction in portion 51) setting bending impression 63；In the junction setting bending impression of second connecting portion 62 and switching interconnecting piece 61
63, it is such as shown in fig. 4, fig. 9.It is of course also possible to the bending place setting in the only first pliable folding piece 50 or the second pliable folding piece 60
There is bending impression 63.
It is to be appreciated that battery modules are to improve energy density, each component in shell 10 needs to be configured comparison tight
It gathers, in that way it is possible to cause the gap between battery connecting piece 70 and end plate 11, between adapter 40 and pole interconnecting piece 51 smaller
With creepage distance deficiency, cause battery modules that short circuit occurs, in order to solve this problem, battery modules further include the first insulating part
80, as shown in Fig. 3, Figure 12, the first insulating part 80 is set between battery connecting piece 70 and end plate 11 and adapter 40 and pole
Between interconnecting piece 51, that is to say, that first part 81 and second part 82 of first insulating part 80 including interconnection, first
81 are divided to be set between adapter 40 and pole interconnecting piece 51；Second part 82 be set to battery connecting piece 70 and end plate 11 it
Between, when transition connection portion 53 is opposite with end plate 11, second part 82 is set between end plate 11 and transition connection portion 53 simultaneously,
At this point, transition connection portion 53 (can be the company of first connecting portion 52 and pole interconnecting piece 51 when transition connection portion 53 is not arranged
Meet place) pass through the first insulating part 80 that can be specifically arranged in the junction between transition connection portion 53 and pole interconnecting piece 51
First insulating part 80 can be with transition connection portion 53 and pole when transition connection portion 53 and pole interconnecting piece 51 pass through bending forming
The bent area that column interconnecting piece 51 connects is arranged in the first insulating part 80.Further, near output stage, first part 81 is arranged
Between battery connection part 41 and pole interconnecting piece 51, to increase the creepage distance of the two, the peace of battery modules is preferably improved
Quan Xing.
After being arranged using aforesaid way, can by the first pliable folding piece 50 as inserts and the first insulating part 80 it is integrated at
Then type is bent again.Obviously, the application, can be by the first insulating part 80 and end plate by increasing by the first pliable folding piece 50
After 11 first assemble, then connect with adapter 40, finally by the first pliable folding piece 50 of bending by end plate 11 and the lid conjunction of shell 12.
In order to increase the creepage distance of adapter 40 and shell 12, the first insulating part 80 further includes being set to shell 12 and
Part III 83 between one pliable folding piece 50, Part III 83 can be connected to 82 periphery of second part, 83 phase of Part III
Second part 82 is bent to the side where battery pack, Part III 83 forms receiving area with second part 82, and first connects
Socket part 52 and transition connection portion 53 are set in the receiving area.Optionally, Part III 83 is bonded with battery pack, is arranged such
Afterwards, adapter 40, first connecting portion 52, transition connection portion 53 and battery connecting piece 70 and shell 10 can be further increased
Creepage distance improves the safety of battery modules.
In addition, battery modules further include the second insulating part 90, the second insulating part 90 is set to pole interconnecting piece 51 and end plate
Between 11, to increase the creepage distance of pole interconnecting piece 51 and end plate 11, the safety of battery modules is better ensured that.
In a kind of embodiment, the second insulating part 90 includes main part 91 and the bending part 92 that is bent relative to main part 91,
Main part 91 is set between pole interconnecting piece 51 and end plate 11, as shown in Fig. 3, Figure 12；First insulating part 80 is provided with annular
Groove 84, as shown in figure 12；In assembly, bending part 92 is inserted into annular groove 84, as shown in figure 3, to limit the first insulating part
80 and second insulating part 90 relative position, improve the assembly precision of battery modules；And this circumferential plug-in mounting structure, Neng Goujin
One step increases the creepage distance of end plate 11 and each component in battery pack, improves the safety of battery modules；Meanwhile it is curved by being arranged
Folding part 92 and annular groove 84, additionally it is possible to improve the intensity of the second insulating part 90 and the first insulating part 80；In addition, this mode,
Insulating part (including the first insulating part 80 and second insulating part 90), energy are distributed between the first pliable folding piece 50 and end plate 11
Enough better ensure that the safety of battery modules.
In addition, the setting simultaneously of the second insulating part 90 is between output pole 30 and end plate 11, with isolation output pole 30 with
End plate 11 increases creepage distance between the two, further increases the safety of battery modules.It is provided in output pole 30 convex
When edge 32, the second insulating part 90 can be arranged simultaneously between flange part 32 and end plate 11, and can coat flange part 32
Side, as shown in Figure 3.
It should be noted that in this application, the first pliable folding piece 50, the second pliable folding piece 60 can be in machine-shapings
Part is bent, and can also carry out part bending again in assembling process.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of battery modules, which is characterized in that including：
Shell, including mutually cover the end plate and shell of conjunction；
Multiple battery cells, multiple battery cells are set in the shell, form battery pack；
Pole is exported, the end plate is set to；
Adapter；
First pliable folding piece, including pole interconnecting piece and the first connecting portion relative to the bent connection of pole interconnecting piece；
With
Second pliable folding piece, including switching interconnecting piece and the second connecting portion relative to the switching bent connection of interconnecting piece；
One end of the adapter is connect with the battery pack, and the other end is connect with the switching interconnecting piece；Second connection
Portion is connect with the first connecting portion；The pole interconnecting piece is connect with the output pole.
2. battery modules according to claim 1, which is characterized in that the first pliable folding piece, described second pliable
At least one of part and the adapter are provided with fuse area, the more described first pliable folding piece of area of passage of the fuse area,
The area of passage in other regions is small in the second pliable folding piece or the adapter.
3. battery modules according to claim 2, which is characterized in that the first pliable folding piece further includes the connection pole
The transition connection portion of column interconnecting piece and the first connecting portion, the fuse area are set to the transition connection portion.
4. battery modules according to claim 1, which is characterized in that the first pliable folding piece further includes the connection pole
The transition connection portion of column interconnecting piece and the first connecting portion, the transition connection portion is to the end plate along the battery cell
The edge of short transverse extends.
5. battery modules according to claim 4, which is characterized in that the battery modules further include the first insulating part, institute
State the first insulating part be set between the end plate and the transition connection portion and the adapter and the pole interconnecting piece it
Between；
The transition connection portion passes through first insulating part.
6. battery modules according to claim 1, which is characterized in that further include the second insulating part, second insulating part
It is set between the pole interconnecting piece and the end plate.
7. battery modules according to claim 1, which is characterized in that it is pliable that the first connecting portion is connected to described second
Folding piece connects the side of the adapter.
8. battery modules according to claim 1, which is characterized in that the second connecting portion is connected to the switching connection
Portion along the side of the thickness direction of the battery cell, and along far from it is described switching interconnecting piece direction into the battery pack
Portion extends.
9. battery modules according to claim 8, which is characterized in that the adapter is in hierarchic structure, the adapter
The part for connecting the battery pack relatively connects the part of the switching interconnecting piece close to the end plate；
The switching interconnecting piece is connected to the adapter close to the side of the end plate.
10. according to claim 1-9 any one of them battery modules, which is characterized in that the first pliable folding piece and described
The bending place of second pliable folding piece is provided with bending impression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820253845.5U CN207818733U (en) | 2018-02-12 | 2018-02-12 | Battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820253845.5U CN207818733U (en) | 2018-02-12 | 2018-02-12 | Battery modules |
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| Publication Number | Publication Date |
|---|---|
| CN207818733U true CN207818733U (en) | 2018-09-04 |
Family
ID=63321095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820253845.5U Active CN207818733U (en) | 2018-02-12 | 2018-02-12 | Battery modules |
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| Country | Link |
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| CN (1) | CN207818733U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020133744A1 (en) * | 2018-12-28 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Battery module |
| WO2020140652A1 (en) * | 2018-12-30 | 2020-07-09 | 宁德时代新能源科技股份有限公司 | Battery module and battery pack |
| CN116014375A (en) * | 2023-02-09 | 2023-04-25 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
| US12027719B2 (en) | 2018-12-28 | 2024-07-02 | Contemporary Amperex Technology Co., Limited | Battery module |
-
2018
- 2018-02-12 CN CN201820253845.5U patent/CN207818733U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020133744A1 (en) * | 2018-12-28 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Battery module |
| US12027719B2 (en) | 2018-12-28 | 2024-07-02 | Contemporary Amperex Technology Co., Limited | Battery module |
| WO2020140652A1 (en) * | 2018-12-30 | 2020-07-09 | 宁德时代新能源科技股份有限公司 | Battery module and battery pack |
| EP3790080A4 (en) * | 2018-12-30 | 2021-09-22 | Contemporary Amperex Technology Co., Limited | Battery module and battery pack |
| US12009546B2 (en) | 2018-12-30 | 2024-06-11 | Contemporary Amperex Technology Co., Limited | Battery module and battery pack |
| CN116014375A (en) * | 2023-02-09 | 2023-04-25 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
| CN116014375B (en) * | 2023-02-09 | 2023-06-09 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
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