CN211879478U - Battery pack and battery module - Google Patents
Battery pack and battery module Download PDFInfo
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- CN211879478U CN211879478U CN202020943320.1U CN202020943320U CN211879478U CN 211879478 U CN211879478 U CN 211879478U CN 202020943320 U CN202020943320 U CN 202020943320U CN 211879478 U CN211879478 U CN 211879478U
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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 pack and a battery module, wherein, a supporting enclosing frame of the battery pack has a certain bearing function, and a hollow part in the middle of the battery pack can accommodate an electric core, thereby reducing the size of the battery pack in the thickness direction; meanwhile, the cross arm in the middle of the supporting enclosure frame can enable the supporting enclosure frame to fix a plurality of battery cells, so that the capacity of the battery assembly is enlarged; in addition, enclose frame range upon range of connection through the support between a plurality of battery pack, the connection between a plurality of battery pack is also more stable, and the support encloses the frame and can protect electric core can not rub or contact with the casing, has improved battery module overall structure's stability, has improved battery module mechanical properties's stability.
Description
Technical Field
The utility model relates to a lithium ion battery technical field especially relates to a battery pack and battery module.
Background
A lithium ion Energy Storage System (BESS) is the most widely applied Energy Storage System, and in comparison, the BESS has the advantages that: firstly, the cost is low, the technology is mature, and the charge-discharge multiple is high; secondly, the module consistency is good, and the distributed energy storage device can be used.
At present, the connection between each battery pack in the lithium ion battery module is not stable, and in the use or transportation process of the lithium ion battery module, relative displacement may occur between each battery pack, so that the safety of the lithium ion battery module is reduced, and meanwhile, the application range of the lithium ion battery module is narrow.
Therefore, the structural stability of the lithium ion battery module in the prior art is poor.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a battery pack and battery module, the structure of having solved lithium ion battery module has the relatively poor problem of stability.
In order to achieve the above object, an embodiment of the present invention provides a battery assembly, including an electrical core and a supporting enclosure frame, where the supporting enclosure frame includes a first side arm and a second side arm that are arranged oppositely and in parallel, N cross arms that are parallel to the first side arm and the second side arm are arranged at an interval in the middle of the supporting enclosure frame to form N +1 accommodating spaces, and one electrical core is fixed in each accommodating space;
wherein N is an integer greater than or equal to 1.
Optionally, the first side arm includes a first side facing away from the battery cell, and a second side and a third side adjacent to the first side, the second side is opposite to the third side, the second side arm includes a fourth side facing away from the battery cell, and a fifth side and a sixth side adjacent to the fourth side, the fifth side is opposite to the sixth side, each of the cross arms includes a seventh side and an eighth side parallel to the second side, and the seventh side is opposite to the eighth side;
the second side surface, the fifth side surface and the seventh side surface are all provided with first stand columns, and the third side surface, the sixth side surface and the eighth side surface are all provided with blind holes matched with the first stand columns; and/or the presence of a gas in the gas,
and the third side surface, the sixth side surface and the eighth side surface are respectively provided with a first stand column, and the second side surface, the fifth side surface and the seventh side surface are respectively provided with a blind hole matched with the first stand column.
Optionally, the first side arm, the second side arm and each cross arm are provided with heat dissipation holes and/or heat dissipation grooves penetrating the thickness direction of the supporting enclosure frame.
Optionally, the first side arm includes a first side surface facing away from the battery cell, the second side arm includes a second side surface facing away from the battery cell, and at least one of the first side surface and the second side surface is provided with the heat dissipation groove.
Optionally, a bearing part extends from the side of the first side arm facing the battery cell, the side of the second side arm facing the battery cell, and the side of each cross arm facing the battery cell, and the bearing part bears the battery cell.
Optionally, a groove adapted to the battery cell is formed in each of the side surface of the first side arm facing the battery cell, the side surface of the second side arm facing the battery cell, and the side surface of each cross arm facing the battery cell, and the battery cell partially extends into the groove.
Optionally, a fixing member is disposed on an outer side surface of the supporting enclosure frame, and the fixing member can fix the supporting enclosure frame to a housing adapted to the battery assembly.
Optionally, the supporting enclosure frame is a resin enclosure frame.
The embodiment of the utility model provides a still provide a battery module, including at least one the embodiment of the utility model provides a battery pack still provides, at least one battery pack passes through each battery pack's support encloses the range upon range of connection of frame.
Optionally, the at least one battery assembly comprises a first battery assembly and a second battery assembly which are connected adjacently, and a supporting frame of each battery assembly is provided with an upright post and a blind hole which are matched with each other;
the upright posts on the supporting surrounding frame of the first battery pack can be inserted into the blind holes on the supporting surrounding frame of the second battery pack so as to fixedly connect the first battery pack and the second battery pack; and/or the blind hole on the supporting surrounding frame of the first battery assembly can accommodate the upright post on the supporting surrounding frame of the second battery assembly, so that the first battery assembly is fixedly connected with the second battery assembly.
One of the above technical solutions has the following advantages or beneficial effects:
the embodiment of the utility model provides a battery pack and battery module, enclose the frame including electric core and support, the support encloses the frame including relative and parallel arrangement's first side arm and second side arm, the support enclose the middle part interval of frame be provided with first side arm with a parallel N xarm of second side arm to form N +1 accommodating space, each the accommodating space internal fixation has one electric core. The size of the battery component in the thickness direction is reduced by the bearing effect of the supporting enclosing frame and the hollow part in the middle of the supporting enclosing frame can accommodate the battery core; meanwhile, the cross arm in the middle of the supporting enclosure frame can enable the supporting enclosure frame to fix a plurality of battery cells, so that the capacity of the battery assembly is enlarged; in addition, enclose frame range upon range of connection through the support between a plurality of battery pack, the connection between a plurality of battery pack is also more stable, and the support encloses the frame and can protect electric core can not rub or contact with the casing, has improved battery module overall structure's stability, has improved battery module mechanical properties's stability.
Drawings
Fig. 1 is a schematic view of a supporting enclosure frame in a battery assembly according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a plan sectional view of a battery pack according to an embodiment of the present invention;
fig. 4 is a second plane sectional view of a battery assembly according to an embodiment of the present invention;
fig. 5 is a perspective cross-sectional view of a battery assembly according to an embodiment of the present invention;
FIG. 6 is an enlarged partial view of portion B of FIG. 1;
fig. 7 is an exploded view of a battery assembly according to an embodiment of the present invention;
fig. 8 is an exploded view of a battery module according to an embodiment of the present invention;
fig. 9 is a second exploded view of a battery module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the prior art, a battery cell is usually directly accommodated in a casing adapted to the battery cell to complete the assembly of the battery. However, a certain gap usually exists between the battery case and the battery core, and when the battery is used, especially when the battery is suitable for small-sized mobile devices, the gap between the battery case and the battery core will cause instability of the battery structure, thereby affecting the use performance of the battery.
As shown in fig. 1 to 5, an embodiment of the present invention provides a battery assembly 100 including a battery cell 110 and a supporting enclosure frame 120, where the supporting enclosure frame 120 includes a first side arm 121 and a second side arm 122 that are arranged oppositely and in parallel, N cross arms 123 that are parallel to the first side arm 121 and the second side arm 122 are arranged at intervals in the middle of the supporting enclosure frame to form N +1 accommodating spaces, and one battery cell 110 is fixed in each accommodating space; wherein N is an integer greater than or equal to 1.
The supporting frame 120 is made of an insulating material, and may be made of a resin material or a plastic material, which is not limited herein.
In the embodiment of the present invention, the supporting frame 120 has a certain bearing function, and as shown in fig. 1, a hollow portion exists in the middle of the supporting frame 120, and the battery cell 110 can be accommodated and fixed in the hollow portion, so that the size of the battery assembly 100 in the thickness direction is reduced;
in addition, N cross arms 123 parallel to the first side arm 121 and the second side arm 122 are disposed at intervals in the middle of the supporting enclosure frame 120, and for convenience of description, the case where N is 2 in the embodiment shown in fig. 2 is illustrated as follows: as shown in fig. 1, two cross arms 123 parallel to the first side arm 121 and the second side arm 122 are disposed at intervals in the middle of the supporting enclosure frame 120, the two cross arms 123 partition the supporting enclosure frame 120 into three accommodating spaces, each accommodating space can accommodate one battery cell 110, that is, three battery cells can be accommodated in the supporting enclosure frame 120, so that the capacity of the battery assembly is increased.
The embodiment of the utility model provides an in, battery pack 100 includes that electric core 110 and support enclose frame 120, and support encloses frame 120 and include relative and parallel arrangement's first side arm 121 and second side arm 122, and the support encloses the middle part interval of frame 120 and is provided with the N xarm 123 parallel with first side arm 121 and second side arm 122 to form N +1 accommodating space, each accommodating space internal fixation has an electric core 110. The supporting surrounding frame 120 has a certain bearing effect, and the hollow part in the middle of the supporting surrounding frame can accommodate the battery cell 110, so that the size of the battery assembly 100 in the thickness direction is reduced; meanwhile, the cross arm 123 at the middle part of the supporting enclosure frame 120 can enable the supporting enclosure frame 120 to fix a plurality of battery cells 110, and the capacity of the battery assembly is enlarged.
Optionally, the first side arm 121 includes a first side surface facing away from the battery cell 110, and a second side surface and a third side surface adjacent to the first side surface, the second side surface is opposite to the third side surface, the second side arm 122 includes a fourth side surface facing away from the battery cell 110, and a fifth side surface and a sixth side surface adjacent to the fourth side surface, the fifth side surface is opposite to the sixth side surface, each of the cross arms 123 includes a seventh side surface and an eighth side surface parallel to the second side surface, and the seventh side surface is opposite to the eighth side surface;
the second side surface, the fifth side surface and the seventh side surface are all provided with first upright posts 124, and the third side surface, the sixth side surface and the eighth side surface are all provided with blind holes 125 matched with the first upright posts 124; and/or the presence of a gas in the gas,
the third side surface, the sixth side surface and the eighth side surface are all provided with a first upright post 124, and the second side surface, the fifth side surface and the seventh side surface are all provided with blind holes 125 matched with the first upright post 124.
In this embodiment, as shown in fig. 2 and fig. 3, the first side arm 121, the second side arm 122 and each of the cross arms 123 are respectively and oppositely provided with a first vertical column 124 and a blind hole 125, which are adapted to each other, so as to realize that, as shown in fig. 4, in a battery module in which a plurality of battery modules are required to be assembled, the support enclosure frame 120 of the plurality of battery modules can be connected by matching the first vertical column 124 with the blind hole 125, thereby realizing the stacking connection of the plurality of battery modules.
Specifically, taking a certain crossbar 123 as an example, the seventh side of crossbar 123 may be regarded as the upper side of crossbar 123, and the eighth side of crossbar 123 may be regarded as the lower side of crossbar 123, so that the present embodiment includes three realizations: first, a seventh side surface of the cross arm 123 may be provided with a first upright 124, and an eighth side surface may be provided with a blind hole 125 adapted to and corresponding to the first upright 124; secondly, the eighth side of the cross arm 123 may be provided with a first upright 124, and the seventh side may be provided with a blind hole 125 adapted to and corresponding to the first upright 124; thirdly, as shown in fig. 2, the seventh side surface of the cross arm 123 may be provided with first columns 124 and blind holes 125 at intervals, the eighth side surface is provided with the blind holes 125 at positions corresponding to the first columns 124 of the seventh side surface, and the first columns 124 are provided at positions corresponding to the blind holes 125 of the seventh side surface.
Optionally, as shown in fig. 2 and 5, the first side arm 121, the second side arm 122 and each of the cross arms 123 are provided with heat dissipation holes 126 and/or heat dissipation slots 126 penetrating the thickness direction of the supporting enclosure frame 120.
In this embodiment, during the operation of the battery assembly, the generated heat can be dissipated through the heat dissipating hole 126 and/or the heat dissipating slot 126, so as to ensure the stability of the operating temperature of the battery assembly and avoid the performance reduction of the battery assembly due to the over-high temperature of the battery assembly.
Further, the first side arm 121 includes a first side surface facing away from the battery cell 110, the second side arm 122 includes a second side surface facing away from the battery cell 110, and at least one of the first side surface and the second side surface is provided with a heat dissipation groove 126. In this embodiment, the heat dissipation grooves 126 disposed on the two side arms of the supporting frame 120 can exchange heat with air through the heat dissipation grooves on the two sides during the battery operation, so as to discharge heat.
Optionally, as shown in fig. 3 and fig. 4, a bearing member 127 extends from a side surface of the first side arm 121 facing the battery cell 110, a side surface of the second side arm 122 facing the battery cell 110, and a side surface of each cross arm 123 facing the battery cell 110, and the bearing member 127 bears the battery cell 110.
In this embodiment, the bearing component 127 may directly bear the electrical core 110, a bayonet matched with the bearing component 127 may be formed on the electrical core 110, and the bearing component 127 is inserted into the bayonet on the electrical core 110 to fix the electrical core 110; the bearing part 127 can also bear the electric core 110 through the bearing plates, as shown in fig. 3, the electric core 110 is accommodated and fixed on at least one of the bearing plates, and then the bearing plate is fixed on the supporting surrounding frame 120, and the bearing part 127 provides bearing capacity, so that the fixed connection between the electric core 110 and the supporting surrounding frame 120 is more stable.
Optionally, as shown in fig. 6, a groove 128 adapted to the battery cell 110 is formed on a side surface of the first side arm 121 facing the battery cell 110, a side surface of the second side arm 122 facing the battery cell 110, and a side surface of each cross arm 123 facing the battery cell 110, and a portion of the battery cell 110 extends into the groove 128.
In this embodiment, the groove 128 may accommodate a portion of the battery cell 110 so as to fix the battery cell 110 in the supporting surrounding frame 120, and a limit piece adapted to the groove 128 may also be disposed on a side surface of the battery cell 110 facing the supporting surrounding frame 120, and the limit piece is fixed in the groove 128, so that the fixing of the battery cell 110 is completed, which is not limited herein.
Optionally, as shown in fig. 2 and fig. 6, a fixing member 129 is disposed on an outer side surface of the supporting frame 120, and the fixing member 129 can fix the supporting frame 120 to a housing adapted to the battery assembly 100. In this way, the supporting enclosure frame 120 can ensure that the battery assembly 100 and the housing do not move relatively, and meanwhile, the supporting enclosure frame 120 can protect the battery core 110 and the housing from contact and friction, thereby avoiding affecting the overall performance of the battery assembly 100.
Optionally, the supporting frame 120 is a resin frame. The resin material has strong plasticity, is convenient for the integral forming of the supporting enclosure frame, and can also reduce the manufacturing cost of the supporting enclosure frame 120.
To sum up, the embodiment of the utility model provides a battery assembly 100, enclose frame 120 including electric core 110 and support, the support encloses frame 120 and includes relative and parallel arrangement's first side arm 121 and second side arm 122, and the support encloses the middle part interval of frame and is provided with the N xarm 123 parallel with first side arm 121 and second side arm 122 to form N +1 accommodating space, each accommodating space internal fixation has an electric core 110. The supporting surrounding frame 120 has a certain bearing effect, and the hollow part in the middle of the supporting surrounding frame can accommodate the battery cell 110, so that the size of the battery assembly 100 in the thickness direction is reduced; meanwhile, the cross arm 123 at the middle part of the supporting enclosure frame 120 can enable the supporting enclosure frame 120 to fix a plurality of battery cells 110, and the capacity of the battery assembly is enlarged.
As shown in fig. 7 to 8, the embodiment of the present invention further provides a battery module, which includes at least one battery assembly 100 provided in the embodiment shown in fig. 1 to 6, wherein the at least one battery assembly is stacked and connected by a supporting surrounding frame 120 of each battery assembly.
In the embodiment of the present invention, as shown in fig. 7, the battery module includes at least one battery assembly 100, each battery assembly 100 includes a supporting frame 120, and the supporting frame 120 is used for stacking and connecting at least one battery assembly 100, so as to simplify the structure and reasonably utilize the space. And then the mixture is put into a box body for packaging. The box body material can be assembled by adopting various metal plates, so that the overall cost of the battery module can be reduced to a certain extent, and the limitation is not required.
For a single battery assembly 100, the supporting frame 120 has a certain bearing effect, and the hollow part in the middle of the supporting frame can accommodate the battery core 110, so that the size of the battery assembly 100 in the thickness direction is reduced; meanwhile, the cross arm 123 in the middle of the supporting enclosure frame 120 can enable the supporting enclosure frame 120 to fix a plurality of battery cells 110, so that the capacity of the battery assembly is enlarged; in addition, enclose frame 120 range upon range of connection through the support between a plurality of battery pack, the connection between a plurality of battery pack is also more stable, and the support encloses frame 120 and can protect electric core 110 can not rub or contact with the casing, has improved battery module overall structure's stability, has improved the stability of battery module performance.
Optionally, as shown in fig. 4, at least one battery assembly includes a first battery assembly and a second battery assembly which are connected adjacently, and the supporting frame 120 of each battery assembly 100 is relatively provided with a stud 124 and a blind hole 125 which are adapted to each other;
the upright posts 124 on the supporting surrounding frame 120 of the first battery pack can be inserted into the blind holes 125 on the supporting surrounding frame 120 of the second battery pack, so that the first battery pack and the second battery pack are fixedly connected; and/or the blind holes 125 on the supporting frame 120 of the first battery pack can be received in the posts 124 on the supporting frame of the second battery pack, so that the first battery pack and the second battery pack are fixedly connected.
In this embodiment, first battery pack and second battery pack are arbitrary two adjacent battery packs in the battery module, and the support based on battery pack encloses the different realization forms of stand 124 and blind hole 125 on the frame 120, and accessible support encloses the frame 120 between first battery pack and the second battery pack and goes up stand 124 and blind hole 125 and mutually support and realize fixed connection, still can play spacing effect when fixed, has further improved battery module overall structure's stability.
A complete embodiment of the present invention will be described below, wherein a battery module and a battery module composed of at least one of the battery modules are provided, as shown in fig. 1 to 9:
in this embodiment, as shown in fig. 9, one battery assembly 100 includes a battery cell 110, a supporting surrounding frame 120, a first carrier plate 130, and a second carrier plate 140. The first carrier plate 130 and the second carrier plate 140 are both heat conductive aluminum plates; the supporting enclosure frame 120 comprises a first side arm 121, a second side arm 122 and two cross arms 123 arranged parallel to and at intervals with the first side arm 121 and the second side arm 122, wherein the two cross arms 123 divide the supporting enclosure frame 120 into three accommodating spaces;
meanwhile, the first bearing plate 130 and the second bearing plate 140 are respectively connected to the two side arms of the supporting enclosure frame 120 and the two upright posts on the same side of the two cross arms perpendicular to the thickness direction through the through holes on the first connecting portion and the second connecting portion, and the first connecting portion and the second connecting portion are attached to each other. Thus, the first carrier plate 130 is divided by the first connecting portion to form three first sub-carrier plates, and the second carrier plate is divided by the second connecting portion 141 to form three second sub-carrier plates; each first sub-carrier plate protrudes in a direction away from the battery cell 110 to form a first accommodating groove; each second sub-carrier plate protrudes in a direction away from the battery cell 110 to form a second accommodating groove; the notch of the first accommodating groove and the notch of the second accommodating groove are oppositely arranged to form an accommodating space, which is three accommodating spaces in total, and each accommodating space accommodates and fixes one battery cell 110;
in addition, a bearing member 127 extends from the side of the first side arm 121 facing the battery cell 110, the side of the second side arm 122 facing the battery cell 110, and the side of each cross arm 123 facing the battery cell 110, and the bearing member 127 abuts against the side of the second carrier plate 140 facing away from the battery cell 110 to bear the second carrier plate 140, so as to further improve the structural stability of the battery assembly.
The two cross arms 123 of the supporting enclosure frame 120 are provided with heat dissipation holes 126 penetrating through the thickness direction of the supporting enclosure frame 120, and the first bearing plate 130 and the second bearing plate 140 are correspondingly provided with heat dissipation holes penetrating through the thickness direction; the first side arm 121 and the second side arm 122 of the supporting enclosure frame 120, which face away from the battery core, are provided with heat dissipation grooves 126 penetrating through the thickness direction of the supporting enclosure frame 120, and the first bearing plate 130 and the second bearing plate 140 are also correspondingly provided with heat dissipation grooves penetrating through the thickness direction; the heat dissipation holes and the heat dissipation grooves are used for dissipating heat when the battery assembly works;
meanwhile, since the first and second carrier plates 130 and 140 are both heat conductive aluminum plates, when the battery assembly is in operation, heat generated by the battery cell can be conducted to the heat dissipation holes in the middle and the heat dissipation grooves on both sides; in addition, a plurality of first protrusions are disposed at intervals on the side of the first loading plate 130 opposite to the battery cell 110, and a plurality of second protrusions are disposed at intervals on the side of the second loading plate 140 opposite to the battery cell 110, and the first protrusions and the second protrusions can form heat dissipation channels with a certain height between adjacent loading plates, so that the heat dissipation efficiency is further improved.
In this embodiment, as shown in fig. 4 and 8, the battery module includes two battery assemblies 100, namely, a first battery assembly and a second battery assembly, the first battery assembly is connected to the second battery assembly, the blind hole 125 on the lower side of the supporting frame 120 of the first battery assembly, and the first upright 124 on the upper side of the supporting frame 120 capable of accommodating the second battery assembly, so as to complete the fixed connection between the first battery assembly and the second battery assembly;
the bearing member 127 of the supporting frame 120 of the first battery assembly abuts against the space between the second bearing plate 140 of the first battery assembly and the first bearing plate 130 of the second battery assembly, so that a heat dissipation channel with a certain height can be formed between the first battery assembly and the second battery assembly while the bearing function is achieved; in addition, the second protrusion of the second carrier plate 140 of the first battery assembly is opposite to the first protrusion of the first carrier plate 130 of the second battery assembly, and a heat dissipation channel with a certain height is also formed between the first battery assembly and the second battery pack, so that the heat dissipation efficiency of the battery module is improved.
The battery module is also fixedly attached with a heating mechanism 300, the heating mechanism 300 can comprise a heating sheet and a heating wire harness connected with the heating sheet, one side of the first bearing plate 130 and one side of the second bearing plate 140 of each battery assembly are bent along the thickness direction of the battery module to form a bent part, the heating sheet is attached to the bent part, and the heating wire harness covers the upper side surface of the battery module; the heating plate comprises an insulating plate and a heating film covering the insulating plate, a temperature acquisition module is integrated on the heating film, and the heating wire harness further comprises a temperature acquisition wire harness. Under low temperature environment, steerable heating mechanism 300 opens and then heats the battery module to the required temperature range of work, guarantees that the battery module normally works under low temperature environment. In this embodiment, the first carrier plate 130 and the second carrier plate 140 made of aluminum plates can uniformly conduct the heat generated by the heating mechanism to each portion of the battery cell 110, so that the performance of the battery cell 110 is not affected by local heating.
Specifically, as shown in fig. 8, the first battery pack and the second battery pack in the battery module may be assembled and fixed from bottom to top in the following order:
installing a lower pressing plate 500;
the lower frame portion of the fixing bracket 200 is assembled on the lower press plate;
the first battery module is assembled in the fixing bracket 200: fixing the supporting surrounding frame 120, fixing the first loading plate 130 on the upper side of the supporting surrounding frame 120, adhering the battery cell 110 in the accommodating groove of the first loading plate 130 by using insulating glue, and fixing the second loading plate 140;
then, assembling a second battery assembly is started: fixing the supporting surrounding frame 120 on the supporting surrounding frame 120 of the first battery assembly, fixing the first loading plate 130 on the upper side of the supporting surrounding frame 120, adhering the battery cell 110 in the accommodating groove of the first loading plate 130 by using insulating glue, and fixing the second loading plate 140;
a fixed heating mechanism 300;
the upper cover portion of the fixing bracket 200 is fixed;
the pressing plate 400 is installed.
After the two BATTERY modules in the BATTERY module are assembled, as shown in fig. 9, the two BATTERY modules are placed in the bus bars of the lower case 600, and the assembly includes devices such as a BATTERY management system 800(BATTERY MANAGEMENT SYSTEM, BMS), a fuse 900, a power plug 1000, etc., and tabs of the BATTERY cells 110 are welded in the bus bars, and then the BATTERY module is assembled by covering the upper cover 700 for locking, and then assembling the module fixing frame 1100, the handle 1200, etc.
To sum up, in the battery module and the battery module provided in the embodiment of the present invention, the supporting frame 120 included in the battery module has a certain bearing function, and the hollow portion in the middle of the supporting frame can accommodate the battery cell 110, so that the size of the battery module 100 in the thickness direction is reduced; meanwhile, the cross arm 123 in the middle of the supporting enclosure frame 120 can enable the supporting enclosure frame 120 to fix a plurality of battery cells 110, so that the capacity of the battery assembly is enlarged; in addition, enclose frame 120 range upon range of connection through the support between a plurality of battery pack, the connection between a plurality of battery pack is also more stable, and the support encloses frame 120 and can protect electric core 110 can not rub or contact with the casing, has improved battery module overall structure's stability, has improved the stability of battery module performance.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A battery assembly is characterized by comprising a battery cell and a supporting enclosing frame, wherein the supporting enclosing frame comprises a first side arm and a second side arm which are oppositely and parallelly arranged, N cross arms which are parallel to the first side arm and the second side arm are arranged in the middle of the supporting enclosing frame at intervals to form N +1 accommodating spaces, and one battery cell is fixed in each accommodating space;
wherein N is an integer greater than or equal to 1.
2. The battery assembly of claim 1, wherein the first side arm comprises a first side facing away from the cell, and second and third sides adjacent to the first side, the second side opposite the third side, the second side arm comprises a fourth side facing away from the cell, and fifth and sixth sides adjacent to the fourth side, the fifth side opposite the sixth side, each of the cross arms comprises seventh and eighth sides parallel to the second side, and the seventh side is opposite the eighth side;
the second side surface, the fifth side surface and the seventh side surface are all provided with first stand columns, and the third side surface, the sixth side surface and the eighth side surface are all provided with blind holes matched with the first stand columns; and/or the presence of a gas in the gas,
and the third side surface, the sixth side surface and the eighth side surface are respectively provided with a first stand column, and the second side surface, the fifth side surface and the seventh side surface are respectively provided with a blind hole matched with the first stand column.
3. The battery assembly of claim 1, wherein the first side arm, the second side arm and each of the cross arms are provided with heat dissipation holes and/or heat dissipation slots penetrating the thickness direction of the supporting enclosure.
4. The battery assembly of claim 3, wherein the first side arm comprises a first side facing away from the cell, wherein the second side arm comprises a second side facing away from the cell, and wherein the heat sink is disposed on at least one of the first side and the second side.
5. The battery assembly of claim 1, wherein a carrier extends from the side of the first side arm facing the cell, the side of the second side arm facing the cell, and the side of each cross arm facing the cell, the carrier carrying the cell.
6. The battery assembly of claim 1, wherein a groove adapted to the battery cell is formed on a side of the first side arm facing the battery cell, a side of the second side arm facing the battery cell, and a side of each of the cross arms facing the battery cell, and the battery cell partially extends into the groove.
7. The battery pack of claim 1, wherein the outer side of the supporting frame is provided with a fixing member, and the fixing member can fix the supporting frame to a housing adapted to the battery pack.
8. The battery assembly of claim 1, wherein the support enclosure is a resin enclosure.
9. A battery module comprising at least one battery module according to any one of claims 1 to 8, wherein the at least one battery module is stacked and connected by a support frame of each battery module.
10. The battery module according to claim 9, wherein the at least one battery assembly comprises a first battery assembly and a second battery assembly which are adjacently connected, and a supporting frame of each battery assembly is provided with a column and a blind hole which are matched with each other;
the upright posts on the supporting surrounding frame of the first battery pack can be inserted into the blind holes on the supporting surrounding frame of the second battery pack so as to fixedly connect the first battery pack and the second battery pack; and/or the blind hole on the supporting surrounding frame of the first battery assembly can accommodate the upright post on the supporting surrounding frame of the second battery assembly, so that the first battery assembly is fixedly connected with the second battery assembly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020943320.1U CN211879478U (en) | 2020-05-28 | 2020-05-28 | Battery pack and battery module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020943320.1U CN211879478U (en) | 2020-05-28 | 2020-05-28 | Battery pack and battery module |
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| CN211879478U true CN211879478U (en) | 2020-11-06 |
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| CN (1) | CN211879478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069127A (en) * | 2021-12-08 | 2022-02-18 | 欣旺达电动汽车电池有限公司 | Battery cell module |
| CN114267915A (en) * | 2021-11-29 | 2022-04-01 | 三一重工股份有限公司 | Battery box and vehicle |
-
2020
- 2020-05-28 CN CN202020943320.1U patent/CN211879478U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114267915A (en) * | 2021-11-29 | 2022-04-01 | 三一重工股份有限公司 | Battery box and vehicle |
| CN114069127A (en) * | 2021-12-08 | 2022-02-18 | 欣旺达电动汽车电池有限公司 | Battery cell module |
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