CN217239610U - Battery module - Google Patents
Battery module Download PDFInfo
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- CN217239610U CN217239610U CN202220241326.3U CN202220241326U CN217239610U CN 217239610 U CN217239610 U CN 217239610U CN 202220241326 U CN202220241326 U CN 202220241326U CN 217239610 U CN217239610 U CN 217239610U
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- end plate
- battery module
- battery
- cell unit
- electric core
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model discloses a battery module, battery module includes: the battery core assembly comprises a battery core unit, a first end plate, a second end plate and a membrane structure, wherein the battery core unit is provided with a first end and a second end in the circumferential direction of the battery core unit, one of the first end and the second end is provided with the first end plate, the other one of the first end and the second end is provided with the second end plate, the battery core unit is also provided with a first side and a second side which are opposite, and the first side and/or the second side is/are provided with the membrane structure; the ribbon extends in the circumferential direction of the battery cell unit so that the ribbon is sleeved outside the battery cell assembly, and the first end plate and/or the second end plate are/is provided with a limiting part matched with the ribbon. From this, through electric core subassembly and ribbon cooperation, can promote the energy density of battery module, also can promote the structural strength and the rigidity of battery module, can promote battery module and resist electric core unit circulation bulging force ability to, at production battery module in-process, the size and the pretightning force of battery module are conveniently controlled.
Description
Technical Field
The utility model belongs to the technical field of the battery and specifically relates to a battery module is related to.
Background
With the increasing severity of environmental problems and energy problems, research and development and production of electric vehicles are more and more emphasized by many enterprises and governments around the world, power batteries provide power sources for electric vehicles, and the electric quantity of the power batteries is of great importance to the endurance mileage of the electric vehicles.
Among the correlation technique, be provided with the battery module in the power battery, the structural strength and the rigidity of current battery module are not enough, and it is poor to lead to the battery module to resist electric core circulation expansibility to, at production battery module in-process, the size and the inconvenient control of pretightning force of battery module, simultaneously, the energy density of battery module is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a battery module, this battery module can promote battery module's energy density, also can promote battery module's structural strength and rigidity, at the production battery module in-process, battery module's size and pretightning force convenient control.
According to the utility model discloses a battery module, include: the battery core assembly comprises a battery cell unit, a first end plate, a second end plate and a membrane structure with an insulation effect, wherein the battery cell unit is provided with a first end and a second end which are opposite in the circumferential direction of the battery cell unit, one of the first end and the second end is provided with the first end plate, the other one of the first end and the second end is provided with the second end plate, the battery cell unit is further provided with a first side and a second side which are opposite in the circumferential direction of the battery cell unit, and the membrane structure is arranged on the first side and/or the second side; the bandage, the bandage is in the circumferencial direction of electricity core unit extends so that the bandage cover is located the electricity core subassembly is outside, first end plate and/or the second end plate be equipped with the spacing portion of bandage complex.
According to the utility model discloses a battery module, through electric core subassembly and ribbon cooperation, can promote the energy density of battery module, also can promote the structural strength and the rigidity of battery module, can promote the battery module and resist electric core unit cyclic expansion power ability to, at production battery module in-process, the size and the pretightning force of battery module are conveniently controlled.
In some examples of the present invention, the binding band is plural, and the binding bands are spaced in the height direction of the cell unit in sequence.
In some examples of the invention, at least one of the plurality of straps is configured as a metal strap and at least one of the plurality of straps is configured as a plastic strap.
In some examples of the invention, a plurality of the thickness of the band is a, satisfying the relation: a is more than or equal to 1mm and less than or equal to 1.5 mm; a plurality of the width of ribbon is B, satisfies the relational expression: b is more than or equal to 15mm and less than or equal to 20 mm.
In some examples of the invention, the limiting portion is a limiting groove.
In some examples of the invention, the membrane structure is an insulating membrane or a heating membrane.
In some examples of the present invention, a heat insulation pad is disposed between the first end plate and the cell unit; and/or the heat insulation pad is arranged between the second end plate and the battery cell unit.
In some examples of the present invention, the battery cell assembly includes a plurality of the battery cell units, a plurality of the battery cell units are sequentially arranged side by side, and at least two adjacent battery cell units are provided with a first buffer cushion therebetween.
The utility model discloses an in some examples, every electric core unit all includes a plurality of electric cores, every electric core unit is a plurality of the electric core is in the thickness direction of electric core is arranged in proper order, adjacent two be equipped with the second blotter between the electric core.
In some examples of the present invention, the first end plate and the second end plate are both provided with mounting holes, and central axes of the mounting holes extend in a height direction of the respective end plates;
in the height direction of the first end plate, one end of the first end plate is provided with an installation groove, and a first connecting piece is installed in the installation groove;
and a second connecting piece is arranged at one end of the second end plate in the height direction of the second end plate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is an exploded view of a battery module according to an embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic view of a first end plate of a battery module according to an embodiment of the present invention;
fig. 4 is a schematic view of a second end plate of a battery module according to an embodiment of the present invention.
Reference numerals:
a battery module 100;
a cell unit 10; a cell 11; a second cushion pad 12;
a first end plate 20; a stopper portion 21; mounting holes 22; a mounting groove 23; a first connecting member 24; a limit boss 25;
a second end plate 30; a second connecting member 31;
a membrane structure 40;
a strap 50; a metal tie 51; a plastic tie 52;
a heat insulating pad 60;
a first cushion 70;
a bus bar support assembly 80; a plastic holder 81; a bus bar 82; a voltage temperature sampling plate 83;
a cover 90.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
The following describes a battery module 100 according to an embodiment of the present invention with reference to fig. 1 to 4, and the battery module 100 can be installed in a housing of a power battery.
As shown in fig. 1 to 4, a battery module 100 according to an embodiment of the present invention includes: an electrical core assembly and a cable tie 50. The battery assembly includes a battery cell unit 10, a first end plate 20, a second end plate 30 and a film structure 40 having an insulating effect, the battery cell unit 10 has a first end and a second end opposite to each other in a circumferential direction of the battery cell unit 10, as shown in fig. 1, in a front-rear direction of the battery module 100, the battery cell unit 10 has a first end and a second end opposite to each other, if a front end of the battery cell unit 10 is the first end, a rear end of the battery cell unit 10 is the second end, and if the front end of the battery cell unit 10 is the second end, a rear end of the battery cell unit 10 is the first end. One of the first end and the second end is provided with a first end plate 20, and the other of the first end and the second end is provided with a second end plate 30, and the application takes the example that the first end of the cell unit 10 is provided with the first end plate 20, and the second end of the cell unit 10 is provided with the second end plate 30 as an example.
The cell unit 10 further has a first side and a second side opposite to each other in the circumferential direction of the cell unit 10, in the front-back direction of the battery module 100, the first side and the second side are located between the first end and the second end, as shown in fig. 1, if the left side of the cell unit 10 is the first side, the right side of the cell unit 10 is the second side, if the left side of the cell unit 10 is the second side, the right side of the cell unit 10 is the first side, the present application takes the left side of the cell unit 10 as the first side, the right side of the cell unit 10 as the second side for example, the first side of the cell unit 10 and/or the second side of the cell unit 10 are/is provided with the film structure 40, and preferably, the first side of the cell unit 10 and the second side of the cell unit 10 are/is provided with the film structure 40.
Ribbon 50 extends in the circumferential direction of electric core unit 10 so that ribbon 50 covers locates the electric core subassembly outside, and first terminal plate 20, second terminal plate 30, membrane structure 40 all are located between electric core unit 10 and ribbon 50, and membrane structure 40 presss from both sides and establishes between electric core unit 10 and ribbon 50, can avoid electric core unit 10 electric quantity to reveal to battery module 100 outside, can promote battery module 100's safety in utilization. And, binding electric core unit 10 with ribbon 50 can promote battery module 100's structural strength and rigidity, can promote battery module 100 and resist electric core unit 10 circulation bulging force ability, at production battery module 100 in-process, battery module 100's size and pretightning force are convenient to be controlled, make battery module 100 have better reliability and circulation performance. Meanwhile, the battery module 100 of the present application uses the membrane structure 40 to replace the side plate of the battery module 100 in the prior art, and the thickness of the membrane structure 40 is smaller than the side plate of the battery module 100 in the prior art, so that the internal space of the battery module 100 can be saved, the grouping rate of the battery module 100 can be increased, and the energy density of the battery module 100 can be increased. In addition, the battery module 100 of the present application is simple and compact in structure.
The first end plate 20 and/or the second end plate 30 are provided with a limiting portion 21 matched with the cable tie 50, preferably, both the first end plate 20 and the second end plate 30 are provided with the limiting portion 21, further, the limiting portion 21 can limit the cable tie 50 in the height direction of the battery module 100, or the limiting portion 21 can limit the cable tie 50 in the circumferential direction of the battery module 100, preferably, the limiting portion 21 limits the cable tie 50 in the height direction of the battery module 100, and the application takes the example that the limiting portion 21 limits the cable tie 50 in the height direction of the battery module 100 as an example. After electric core subassembly outside is located to 50 covers of ribbon, spacing portion 21 can be spacing to ribbon 50 at battery module 100's direction of height, avoids ribbon 50 first end plate 20, the 30 positions of second end plate relatively to take place to remove, promotes the fastness of ribbon 50 and electric core subassembly assembly, so sets up structural strength and the rigidity that can further promote battery module 100, can further promote battery module 100 and resist electric core unit 10 circulation expansive force ability.
From this, through cooperation of electric core subassembly and ribbon 50, can promote battery module 100's energy density, also can promote battery module 100's structural strength and rigidity, can promote battery module 100 and resist electric core unit 10 cyclic expansion power ability to, at production battery module 100 in-process, battery module 100's size and pretightning force are conveniently controlled.
In some embodiments of the utility model, as shown in fig. 1, ribbon 50 can set up to a plurality ofly, that is to say the number, ribbon 50 can set up to 2, 3, 4, 5 and so on, a plurality of ribbons 50 are at the direction of height of electric core unit 10 spaced apart setting in proper order, bind the electric core subassembly simultaneously through a plurality of ribbons 50, can further promote battery module 100's structural strength and rigidity, can further promote battery module 100 and resist electric core unit 10 circulation expansive force ability, also can promote battery module 100 assembly fastness, ensure battery module 100's structural reliability.
In some embodiments of the present disclosure, as shown in fig. 1, at least one of plurality of ties 50 is configured as a metal tie 51, and metal tie 51 may be an aluminum tie 50 or a steel tie 50, but the present disclosure is not limited thereto, and metal tie 51 may also be configured as a tie 50 of other metal types, and this application illustrates metal tie 51 as steel tie 50. At least one of the plurality of ties 50 is configured as a plastic tie 52. Further, as shown in fig. 1, taking the case that the bands 50 are two for illustration, one of the two bands 50 is set as a steel band 50, the other of the two bands 50 is set as a plastic band 52, the steel band 50 can be set above the plastic band 52, the steel band 50 can be made of stainless steel material, the steel band 50 has high yield strength and tensile strength for resisting the expansion force caused by the circulation of the battery cell unit 10, the plastic band 52 can be made of PET (Polyethylene-terephthalate-polyester resin) material, the plastic band 52 has certain strength and good flexibility, and after the plastic band 52 binds the battery cell assembly, the plastic band 52 can provide the constraint for the battery module 100, and ensure the rigidity of the battery module 100.
In some embodiments of the present invention, the thickness of the plurality of ties 50 is a, satisfying the relationship: a is more than or equal to 1mm and less than or equal to 1.5mm, the width of each ribbon 50 is B, and the relational expression is satisfied: b is more than or equal to 15mm and less than or equal to 20 mm. Further, each thickness of the plurality of bands 50 is 1.1mm or 1.2mm or 1.3mm or 1.31mm or 1.32mm or 1.4mm or 1.5mm, and each width of the plurality of bands 50 is 15mm or 15.1mm or 15.2mm or 16mm or 17mm or 18mm or 19mm or 20 mm. The strength and the rigidity of the cable tie 50 can be ensured by the arrangement, and the cable tie 50 can be prevented from being broken, so that the use reliability of the cable tie 50 can be ensured.
Further, the thickness of metal ribbon 51 sets up to 1mm, and the width of metal ribbon 51 sets up to 19mm, and the thickness of plastics ribbon 52 sets up to 1.2mm, and the width of plastics ribbon 52 sets up to 19mm, through the common battery pack of binding of metal ribbon 51 and plastics ribbon 52, can ensure battery module 100 structural reliability.
In some embodiments of the present invention, as shown in fig. 2, the limiting portion 21 may be configured as a limiting groove, wherein, as shown in fig. 2, the outer surface of the first end plate 20 and the outer surface of the second end plate 30 are both provided with a limiting boss 25, the limiting boss 25 of the first end plate 20 is disposed at the corner of the first end plate 20, the limiting boss 25 of the first end plate 20 protrudes out of the outer surface of the first end plate 20, so as to be a limiting groove above and below the limiting boss 25, a ribbon 50 is assembled in one limiting groove, after the ribbon 50 binds the electric core assembly, the ribbon 50 passes through the limiting groove, the limiting boss 25 can limit the ribbon 50 in the height direction of the first end plate 20, thereby avoiding the ribbon 50 from moving in the height direction of the first end plate 20, and ensuring the assembly firmness of the ribbon 50 and the electric core assembly.
In some embodiments of the present invention, the film structure 40 may be provided as an insulating film or a heating film. The insulating film is made of PC (Polycarbonate-Polycarbonate) materials, the insulating film is clamped between the metal cable tie 51 and the battery cell unit 10, the insulating film is used for insulating protection between the side face of the battery cell unit 10 and the metal cable tie 51, electric leakage of the battery module 100 can be effectively prevented, and the use safety of the battery module 100 is improved. And, the heating film has insulating and heating effect, and the heating film clamp is established between ribbon 50 and electric core unit 10, and the heating film can be used for the insulating protection between electric core unit 10 side and ribbon 50, prevents that battery module 100 from leaking electricity, and the heating film also can heat electric core unit 10 to can make electric core unit 10 work at suitable temperature, guarantee battery module 100 working property.
In some embodiments of the present invention, as shown in fig. 1, a heat insulation pad 60 may be disposed between the first end plate 20 and the battery cell unit 10; and/or an insulating mat 60 may be provided between the second end plate 30 and the cell unit 10. Preferably, heat insulation pads 60 are disposed between the first end plate 20 and the battery cell unit 10 and between the second end plate 30 and the battery cell unit 10, and the heat insulation pads 60 are used for heat insulation between the battery cell unit 10 and the first end plate 20 and the second end plate 30, so as to ensure the temperature consistency of each battery cell 11 in the battery cell unit 10 of the battery module 100. Further, heat insulating mattress 60 adopts the aerogel material to make, so set up and to make heat insulating mattress 60 have lower coefficient of heat conductivity, also can make heat insulating mattress 60 endure high temperature to be favorable to solving battery module 100's thermal runaway problem, aerogel material has higher compression ratio simultaneously, is favorable to electric core 11 circulation and absorbs 11 thickness tolerance of monomer electric core, thereby guarantees battery module 100's length dimension and pretightning force.
In some embodiments of the present invention, as shown in fig. 1, the battery module 100 further includes a busbar bracket assembly 80, the busbar bracket assembly 80 includes a plastic bracket 81, a busbar 82 and a voltage temperature sampling plate 83, the busbar 82 and the voltage temperature sampling plate 83 are installed on the plastic bracket 81, the busbar bracket assembly 80 is located above the electric core unit 10, the busbar 82 is connected with the pole of the electric core unit 10, the busbar 82 realizes series-parallel connection between the individual electric cores 11 of the electric core unit 10, and the voltage temperature sampling plate 83 is used for collecting the voltage and the temperature of the individual electric cores 11 of the electric core unit 10.
In some embodiments of the present invention, as shown in fig. 1, the battery cell assembly includes a plurality of battery cell units 10, the battery cell units 10 can be set to be 2, 3, 4, 5, etc., the plurality of battery cell units 10 are sequentially set side by side, and a first buffer cushion 70 is disposed between at least two adjacent battery cell units 10. The application is described by taking an example that the cell assembly includes two cell units 10, the two cell units 10 are arranged at intervals in the left-right direction in fig. 1, one side of the first buffer pad 70 is bonded to the cell unit 10 on the left side of the first buffer pad 70, the other side of the first buffer pad 70 is bonded to the cell unit 10 on the right side of the first buffer pad 70, the width of the first buffer pad 70 is 18mm-22mm, preferably, the width of the first buffer pad 70 is 20mm, the width direction of the first buffer pad 70 refers to the up-down direction in fig. 1, the thickness of the first buffer pad 70 is 0.4mm-0.6mm, and preferably, the thickness of the first buffer pad 70 is 0.5 mm. The first buffer pads 70 are used for spacing two adjacent rows of cell units 10, so as to ensure insulation between the two adjacent rows of cell units 10.
Further, the first cushion pad 70 may be made of an elastic material, such as: first blotter 70 is made by the silicon rubber material, and when battery module 100 receives mechanical vibration and assaults, through setting up first blotter 70 between two adjacent rows of electric core unit 10, can make the bridging busbar 82 stress of connecting two adjacent rows of electric core unit 10 satisfy the requirement, can guarantee that the bridging busbar 82 of two adjacent rows of electric core unit 10 connects reliably.
In some embodiments of the present invention, as shown in fig. 1, each battery cell unit 10 may include a plurality of battery cells 11, each battery cell 11 may be a square battery cell 11 of lithium iron phosphate, a plurality of battery cells 11 of each battery cell unit 10 are arranged in the thickness direction of the battery cell 11 in sequence, and a second cushion pad 12 is disposed between two adjacent battery cells 11. Wherein, all be provided with second blotter 12 between two adjacent electric cores 11 of every electric core unit 10, second blotter 12 is used for two adjacent electric cores 11 of interval, provides the clearance between electric core 11, is favorable to electric core 11's circulation.
Further, the second buffer pads 12 may be configured as a strip-shaped structure, the second buffer pads 12 are adhesively fixed to two adjacent battery cells 11, a plurality of second buffer pads 12 are disposed between two adjacent battery cells 11, for example, two second buffer pads 12 are disposed between two adjacent battery cells 11, the plurality of second buffer pads 12 are disposed at intervals, the width of the second buffer pads 12 is set to be 8mm-12mm, preferably, the width of the second buffer pads 12 is set to be 10mm, and the second buffer pads 12 may be made of an elastic material, for example: the second buffer pad 12 is made of a silicon rubber material, and the second buffer pad 12 can absorb the thickness tolerance of the battery cell 11, so that the length and the pretightening force of the battery module 100 are ensured.
In some embodiments of the present invention, as shown in fig. 1, fig. 3 and fig. 4, the first end plate 20 and the second end plate 30 are provided with the mounting holes 22, the central axis of the mounting holes 22 extends in the height direction of the corresponding end plate, further, the first end plate 20 and the second end plate 30 are provided with a plurality of columns of mounting holes 22, each column of mounting holes 22 includes a plurality of mounting holes 22, the plurality of mounting holes 22 in each column of mounting holes 22 are spaced apart in the height direction of the corresponding end plate in sequence, the plurality of mounting holes 22 passing through each column of mounting holes 22 simultaneously through the bolts can install the battery module 100 in the housing of the power battery.
In some embodiments of the present invention, as shown in fig. 1 and fig. 3, in the height direction of the first end plate 20, i.e. the up-down direction in fig. 3, one end of the first end plate 20 is provided with a mounting groove 23, further, the upper end of the first end plate 20 is provided with the mounting groove 23, the mounting groove 23 is provided with a first connecting member 24, and the first connecting member 24 is used for connecting the high-voltage output electrode of the battery cell unit 10. Wherein, the upper end of the first end plate 20 may be provided with a plurality of mounting grooves 23, and the plurality of mounting grooves 23 are spaced apart in sequence along the length direction of the first end plate 20, for example: the upper end of first end plate 20 can be provided with four mounting grooves 23, can be according to the in-service use demand, install first connecting piece 24 to arbitrary one mounting groove 23 in, the high voltage output pole of being convenient for first connecting piece 24 and being connected electric core unit 10 reduces the assembly degree of difficulty.
In some embodiments of the present invention, as shown in fig. 1 and 4, in the height direction of the second end plate 30, one end of the second end plate 30 is provided with a second connecting member 31, and the second connecting member 31 fixes the low-voltage output member of the battery cell unit 10. Wherein, the upper end of the second end plate 30 may be provided with a plurality of second connectors 31, and the plurality of second connectors 31 are sequentially spaced apart along the length direction of the second end plate 30, for example: the upper end of the second terminal plate 30 may be provided with two second connecting members 31, and each second connecting member 31 is used for fixing a low voltage output member of one cell unit 10.
In some embodiments of the present invention, the first end plate 20 and the second end plate 30 may be made of aluminum alloy or magnesium alloy, and the first end plate 20 and the second end plate 30 are used to provide the structural strength and rigidity of the battery module 100. The forming process of the first and second end plates 20, 30 may be die cast or extruded. The die-casting end plate is made of aluminum alloy A380 or magnesium alloy, and the extrusion end plate is made of aluminum alloy AL 6063-T6 or AL 6061-T6.
In some embodiments of the present invention, as shown in fig. 1, the battery module 100 may further include a cover 90, the cover 90 is disposed above the bus bar support assembly 80, and the cover 90 is used to include the battery module 100. Further, the lid 90 is made of a PC material, the lid 90 is made of a PC board with a thickness of 0.5mm, the two side edges of the lid 90 are provided with folded edges, and the inside of the folded edges is adhered to the side surfaces of the battery cell 11 in the battery module 100, so as to protect the charged component above the battery module 100.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery module (100), comprising:
a cell assembly comprising a cell unit (10), a first end plate (20), a second end plate (30) and a membrane structure (40) having an insulating effect, the cell unit (10) having opposite first and second ends in a circumferential direction of the cell unit (10), one of the first and second ends being provided with the first end plate (20), the other of the first and second ends being provided with the second end plate (30), the cell unit (10) further having opposite first and second sides in the circumferential direction of the cell unit (10), the first and/or second sides being provided with the membrane structure (40);
the electric core module comprises a cable tie (50), wherein the cable tie (50) extends in the circumferential direction of the electric core unit (10) to enable the cable tie (50) to be sleeved outside the electric core module, and the first end plate (20) and/or the second end plate (30) are/is provided with a limiting portion (21) matched with the cable tie (50).
2. The battery module (100) according to claim 1, wherein the twist tie (50) is provided in plurality, and the twist tie (50) is sequentially spaced in the height direction of the cell unit (10).
3. The battery module (100) of claim 2, wherein at least one of the plurality of straps (50) is configured as a metal strap (51) and at least one of the plurality of straps (50) is configured as a plastic strap (52).
4. The battery module (100) of claim 2, wherein the plurality of straps (50) each have a thickness a that satisfies the relationship: a is more than or equal to 1mm and less than or equal to 1.5 mm;
the width of each of the plurality of bands (50) is B, and the relational expression is satisfied: b is more than or equal to 15mm and less than or equal to 20 mm.
5. The battery module (100) according to claim 1 or 2, wherein the stopper (21) is a stopper groove.
6. The battery module (100) according to claim 1, wherein the film structure (40) is an insulating film or a heating film.
7. The battery module (100) according to claim 1, wherein a heat insulating pad (60) is disposed between the first end plate (20) and the cell unit (10); and/or
The heat insulation pad (60) is arranged between the second end plate (30) and the battery cell unit (10).
8. The battery module (100) according to claim 1, wherein the battery core assembly comprises a plurality of the battery cell units (10), the plurality of the battery cell units (10) are arranged side by side in sequence, and a first buffer cushion (70) is arranged between at least two adjacent battery cell units (10).
9. The battery module (100) according to claim 8, wherein each of the cell units (10) comprises a plurality of battery cells (11), the plurality of battery cells (11) of each of the cell units (10) are sequentially arranged in the thickness direction of the battery cells (11), and a second buffer cushion (12) is disposed between two adjacent battery cells (11).
10. The battery module (100) according to claim 1, wherein the first end plate (20) and the second end plate (30) are each provided with a mounting hole (22), and a center axis of the mounting hole (22) extends in a height direction of the respective end plate;
in the height direction of the first end plate (20), one end of the first end plate (20) is provided with an installation groove (23), and a first connecting piece (24) is installed in the installation groove (23);
and a second connecting piece (31) is arranged at one end of the second end plate (30) in the height direction of the second end plate (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241326.3U CN217239610U (en) | 2022-01-28 | 2022-01-28 | Battery module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241326.3U CN217239610U (en) | 2022-01-28 | 2022-01-28 | Battery module |
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| CN217239610U true CN217239610U (en) | 2022-08-19 |
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| CN202220241326.3U Active CN217239610U (en) | 2022-01-28 | 2022-01-28 | Battery module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116759737A (en) * | 2023-08-16 | 2023-09-15 | 中宏科创新能源科技(浙江)有限公司 | Battery module bundling assembly and battery module |
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2022
- 2022-01-28 CN CN202220241326.3U patent/CN217239610U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116759737A (en) * | 2023-08-16 | 2023-09-15 | 中宏科创新能源科技(浙江)有限公司 | Battery module bundling assembly and battery module |
| CN116759737B (en) * | 2023-08-16 | 2023-11-14 | 中宏科创新能源科技(浙江)有限公司 | Battery module bundling assembly and battery module |
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