WO2022011513A1 - Battery module and vehicle - Google Patents

Battery module and vehicle Download PDF

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Publication number
WO2022011513A1
WO2022011513A1 PCT/CN2020/101708 CN2020101708W WO2022011513A1 WO 2022011513 A1 WO2022011513 A1 WO 2022011513A1 CN 2020101708 W CN2020101708 W CN 2020101708W WO 2022011513 A1 WO2022011513 A1 WO 2022011513A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
battery
cooling
end plate
battery module
Prior art date
Application number
PCT/CN2020/101708
Other languages
French (fr)
Chinese (zh)
Inventor
王安
于林
占莉
Original Assignee
威睿电动汽车技术(宁波)有限公司
浙江吉利控股集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 威睿电动汽车技术(宁波)有限公司, 浙江吉利控股集团有限公司 filed Critical 威睿电动汽车技术(宁波)有限公司
Priority to PCT/CN2020/101708 priority Critical patent/WO2022011513A1/en
Priority to CN202080101362.3A priority patent/CN115803948A/en
Publication of WO2022011513A1 publication Critical patent/WO2022011513A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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

Definitions

  • the present invention relates to the technical field of batteries, in particular to a battery module and a vehicle.
  • the battery cell In the existing battery pack technology, the battery cell is its core component.
  • the cells are placed in various ways, such as individually arranged or designed as modules, and then fixed into the battery pack.
  • the cells In order to match the space of the power battery packs of different models of vehicles, the cells need to be selected in different sizes or specifications to meet the space requirements in the packs, which in turn results in repeated development of battery pack specifications and high development costs.
  • the cell when the cell is in the range of 20°C ⁇ 40°C, its charge and discharge performance is the best, and it is also most beneficial to the life of the cell.
  • the battery generates a large amount of heat. If the heat accumulates rapidly, causing local overheating or uneven temperature, it will easily lead to the decline of battery performance, the attenuation of capacity and life, and even the occurrence of thermal runaway of the battery. Therefore, in the prior art, a liquid-cooled heat dissipation device is often used to dissipate heat.
  • the heat dissipation device needs to have a volume suitable for the size of the battery cell to have better heat dissipation efficiency, which increases the volume of the battery pack.
  • the size of the cells is compressed, which is not easy to reconcile with the concept of increasing the number of cells to improve the energy density.
  • the battery cell will expand during the cycle of charging and discharging, so a certain space needs to be reserved when the battery cell is assembled. Otherwise, the cells may be squeezed against each other due to thermal expansion, or the cells may be squeezed against the casing frame of the battery pack, which may cause damage to the cells, leakage of the conductive liquid in the cells, and the risk of the casing frame falling apart.
  • the present application aims to provide a battery module and a vehicle, which can coordinate the problems between improving the energy density of the battery cells and providing the space for the arrangement of the cooling device and the thermal expansion of the power supply core, and without the need for Repeated development of battery cells will help reduce the cost of battery modules.
  • the purpose of the present invention is to provide a battery module, comprising a cell unit and a module frame structure, and the cell unit is arranged in the module frame structure;
  • the module frame structure includes a first end plate, a second end plate, a front cover plate, a rear cover plate and at least one middle reinforcing plate, the first end plate, the front cover plate, the second end plate and the rear
  • the cover plate is enclosed to form an accommodating space
  • each of the middle reinforcing plates is connected to the first end plate and the second end plate, and the middle reinforcing plate divides the accommodating space into at least two rows the volume of the cloth;
  • One of the battery cells is correspondingly arranged in each of the cavities, and each of the battery cells includes at least two single cells arranged from the first end plate to the second end plate, and each of the battery cells
  • the tabs of all the single cells in the unit face the same direction, and the tabs of the single cells face the front cover or the rear cover.
  • the battery module further includes a cooling structure, the cooling structure is arranged in the frame structure of the module, the cooling structure includes a first cooling plate, and the first cooling plate is located in two adjacent ones of the between cell units.
  • each of the single cells further includes two bonding surfaces, the two bonding surfaces are respectively connected with the two long sides of the top surface, and the two adjacent single cells The connection is made by bonding through the bonding surface.
  • the battery module further includes a wire harness isolation unit, and the wire harness isolation unit is disposed between the battery cell unit and the front cover and/or between the battery cell and the rear cover And/or between the cell unit and the middle reinforcing plate, a flexible circuit board and a cell busbar are integrated on the wire harness isolation unit, and the flexible circuit board is connected to the positive electrode tab and the negative electrode. ear connected.
  • the positive electrode tabs and the negative electrode tabs are respectively welded to the cell busbars so that the cell cell units are fixedly connected to the wire harness isolation unit. .
  • the wire harness isolation unit is provided with a positive electrode through hole that matches the positive electrode tab, and the positive electrode through hole is used for the positive electrode tab to pass through; the wire harness isolation unit is also provided with a The negative electrode through holes are matched with the negative electrode tabs, and the negative electrode through holes are used for the negative electrode tabs to pass through.
  • an acquisition processor is also included, the acquisition processor is used to monitor the cell unit, and the cell unit and the acquisition processor are connected through the flexible circuit board.
  • the middle reinforcing plate is provided with a stepped structure, and the stepped structure is arranged at one end of the middle reinforcing plate close to the first end plate and an end close to the second end plate; the first end plate and the second end plate are provided with a snap groove, the snap groove matches the step structure, the first end plate and the middle reinforcing plate, the second end plate and the middle The reinforcing plates are all connected with the clamping groove through the stepped structure.
  • a side of the first end plate close to the middle reinforcing plate and a side of the second end plate close to the middle reinforcing plate are provided with a concave structure, and the concave structure is connected to the clamping groove.
  • the recessed structures are arranged at intervals, and the recessed structures are opposite to the battery cell units.
  • the module frame structure further includes an upper fixing plate and a lower fixing plate
  • the upper fixing plate is located on one side of the cell unit, and four sides of the upper fixing plate are respectively connected to the first end
  • the plate, the front cover, the second end plate and the rear cover are connected
  • the lower fixing plate is located on the side of the cell unit away from the upper fixing plate, and the four sides of the lower fixing plate are respectively It is connected with the first end plate, the front cover plate, the second end plate and the rear cover plate.
  • the upper fixing plate includes an upper fixing plate body and a first flange, the first flanges are located on both sides of the upper fixing plate body, and the first flange faces the direction of the lower fixing plate extending;
  • the lower fixing plate includes a lower fixing plate body and a second flange, the second flanges are located on both sides of the lower fixing plate body, and the second flange extends in the direction of the upper fixing plate .
  • reinforcing ribs are provided on the surface of the upper fixing plate and the surface of the lower fixing plate.
  • the cooling structure further includes a second cooling plate and a third cooling plate, the second cooling plate is arranged between the battery cell unit and the upper fixing plate, and the third cooling plate is arranged at the Between the battery cell unit and the lower fixing plate, the first cooling plate, the second cooling plate and the third cooling plate are communicated through a cooling liquid circulation pipe.
  • glue is applied between the cell unit and the first cooling plate, between the cell unit and the second cooling plate, and between the cell unit and the third cooling plate Treatment, glue is applied between the middle reinforcing plate and the first cooling plate and between the middle reinforcing plate and the battery cell unit.
  • the bus bar includes a battery module bus bar and a battery cell unit bus bar
  • the battery cell unit bus bar is used to connect each of the battery cell units to form a whole
  • the battery module bus bar The set of bus bars is used to connect the whole of the battery cells to the positive and negative pole seats.
  • a buffer structure is also included, and the buffer structure is disposed between two adjacent single cells.
  • Another aspect of the present invention protects a vehicle including the battery module described in the above technical solution.
  • the present invention has the following beneficial effects:
  • the present invention provides a battery module, which is specially provided with a module frame structure for the battery cell units placed on the side.
  • the cavities are arranged so that the battery cells will not be over-fitted, which is beneficial to avoid mutual extrusion caused by thermal expansion of the battery cells, and is beneficial to avoid the risk of short circuit between the battery cells.
  • the present invention provides a battery module, which does not need to repeatedly develop the size of the battery cell, and can make full use of the size of the side discharge core to match the internal space of the battery pack, which is beneficial to reduce the cost of the battery module.
  • the cooling structure arranged on the basis of the frame structure of the module can fit the battery cell unit to improve the cooling effect on the battery core unit, and provide a suitable battery cell unit.
  • the working temperature environment avoids local overheating or thermal runaway caused by the huge heat generation of the battery module; it realizes the coordination between providing space for the arrangement of cooling devices, space for thermal expansion of the power supply core and improving the energy density of the battery pack.
  • FIG. 1 is an exploded schematic diagram of a battery module provided by an embodiment of the present invention.
  • FIG. 2 is an exploded schematic diagram of another battery module provided by an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of the single cell in the embodiment of the present invention.
  • Fig. 6 is the structural representation of described module frame structure
  • Figure 7 is a top view of the first end plate/second end plate
  • Fig. 8 is the structural representation of the upper fixing plate
  • FIG. 9 is a schematic diagram of the structure of the wire harness isolation unit.
  • 10-cell unit 101-single battery, 101a-positive tab, 101b-negative tab, 101c-explosion-proof valve, 20-module frame structure, 21a-first end plate, 21b-second End plate, 211-clamping groove, 212-depressed structure, 213-first opening, 22-front cover plate, 23-rear cover plate, 24-intermediate reinforcing plate, 241-step structure, 25-upper fixing plate, 251-first flange, 252-reinforcing rib, 253-second opening, 26-lower fixing plate, 261-second flange, 30-cooling structure, 31-first cooling plate, 32-second cooling plate , 33-Third cooling plate, 40- Harness isolation unit, 41-Cell busbar, 42-Flexible circuit board, 50-Busbar, 51-Battery module busbar, 52-Cell unit busbar, 60- Acquisition processor, 70-positive and negative pole seat, 80-buffer structure.
  • this embodiment provides a battery module including a battery cell unit 10 , a module frame structure 20 and a cooling structure 30 , the battery cell unit 10 and the cooling structure 30 are both arranged in the Inside the module frame structure 20;
  • the module frame structure 20 includes a first end plate 21a, a second end plate 21b, a front cover plate 22, a rear cover plate 23 and at least one middle reinforcing plate 24.
  • the first end plate 21a, the front cover plate 22, The second end plate 21b and the rear cover plate 23 are enclosed to form an accommodating space. Both ends of the middle reinforcing plate 24 are respectively connected to the first end plate 21a and the second end plate 21b.
  • the middle reinforcing plate 24 divides the accommodating space into at least two cavities arranged in a row; that is, in the embodiment of this specification, the first end plate 21a and the second end plate 21b are disposed opposite to each other, and the The front cover plate 22 and the rear cover plate 23 are arranged opposite to each other; and preferably, the middle reinforcing plates 24 are evenly distributed in the accommodating space, and the accommodating space is evenly divided into two or two the above volume;
  • One of the cell units 10 is correspondingly disposed in each of the cavities, that is, the number of the cell units 10 is equal to the number of the cavities, and each of the cell units 10 includes at least two The single cells 101 arranged from the first end plate 21a to the second end plate 21b, the tabs of all the single cells 101 in each cell unit 10 are oriented in the same direction, and the single cells 101 are arranged in the same direction.
  • the tabs of the battery 101 face the front cover 22 or the rear cover 23 .
  • the cooling structure 30 includes a first cooling plate 31 , and the first cooling plate 31 is located between two adjacent battery cells 10 .
  • the tabs of the single cells 101 in the same cell unit 10 are oriented in the same direction, which facilitates series-parallel wiring between the single cells and reduces the difficulty and complexity of wiring. And can play the role of compact structure and space saving.
  • the cooling plate since the cell unit 10 generally has a larger size, that is, the cell unit 10 has a longer distance along the direction from the first end plate 21a to the second end plate 21b, the cooling plate also usually needs to be designed Available in larger sizes for cooling needs.
  • the length of the water-cooling plate is long, a large gap is likely to exist between the middle section of the water-cooling plate and the battery module due to the influence of gravity, and the water-cooling plate cannot be closely attached to the battery module, thereby reducing the cooling effect. If the water-cooling plate is fixedly connected to the battery module by means of fasteners or welding, the circulation of the cooling liquid inside the water-cooling plate will be affected.
  • the first cooling plate 31 since the first cooling plate 31 is disposed between the two adjacent battery cells 10, the first cooling plate 31 can be sandwiched by the two adjacent battery cells and is The battery cells remain in contact, thus providing cooling for both battery cells 10 at the same time.
  • the single cell 101 includes a top surface, a bottom surface, two bonding surfaces and two adjoining surfaces, and the top surface and the bottom surface are disposed opposite to each other.
  • the top surface is a rectangle, and the top surface includes two oppositely arranged long sides and two oppositely arranged short sides; the two said bonding surfaces are arranged oppositely, and the two said bonding surfaces are The long sides of the top surface are connected; the two adjoining surfaces are arranged opposite to each other, and the two adjoining surfaces are connected with the short sides of the top surface.
  • the tabs are arranged on the top surface of the unit cell 101, and the tabs include a positive tab 101a and a negative tab 101b, and the positive tab 101a and the negative tab 101b are located along the top surface. lengthwise arrangement.
  • the two adjacent single cells 101 are attached and connected through the bonding surface, so that the single cells 101 are arranged from the first end plate 21a to the second end plate 21b, and the single cells 101 stack in the thickness direction.
  • the single battery 101 is further provided with an explosion-proof valve 101c, and the explosion-proof valve 101c is disposed between the positive electrode tab 101a and the negative electrode tab 101b.
  • the single cells in each battery unit 10 are placed laterally (as shown in FIG. 1 or 2 ), which can be adapted to a battery pack with a higher height.
  • the height of the battery pack is basically the same as the length of the single battery.
  • the method of placing the single battery on the side as provided in this application is used to make full use of the height space of the battery pack; multiple rows of battery cells are arranged in the battery pack to make full use of the length and width space of the battery pack, so that there is limited space in the battery pack. space is fully utilized.
  • a battery module provided in the embodiment of this specification further includes a wire harness isolation unit 40 , and the wire harness isolation unit 40 is disposed between the battery cell unit 10 and the front cover 22 and/or the battery cell unit 10 and the rear cover plate 23 and/or between the battery cell unit 10 and the middle reinforcing plate 24 .
  • the wire harness isolation unit 40 is integrated with a flexible printed circuit board (Flexible Printed Circuit) and a cell bus bar, and the flexible printed circuit board and the cell bus bar are respectively connected with each unit cell 101 in the adjacent cell unit.
  • the positive electrode tab 101a and the negative electrode tab 101b are connected to collect the low voltage signal of each single battery and connect the power.
  • the wire harness isolation unit 40 can play an insulating role to avoid short circuit between the single cells 101 in the battery cell unit 10 .
  • the number of the wire harness isolation units 40 is the same as the number of the battery cell units 10 . When the number of cell units 10 is greater than two, the tab of one cell unit 10 must face the middle reinforcing plate 24 , so the wire harness isolation unit 40 is disposed between the middle reinforcing plate 24 and the cell unit. between 10.
  • the wire harness isolation unit 40 is provided with a positive electrode through hole matching the positive electrode tab 101a, and the positive electrode through hole is used for the positive electrode tab to pass through.
  • the matching of the positive electrode tabs 101a means that the shape and size of the positive electrode through-holes match the shape and size of the positive electrode tabs 101a, and the number of the positive electrode through-holes is the same as that of each single cell in the cell unit 10.
  • the number of the positive electrode through holes is matched, and the positions of the positive electrode through holes on the wire harness isolation unit 40 match the positions of the positive electrode tabs 101 a relative to the battery cell unit 10 .
  • the wire harness isolation unit 40 is further provided with a negative electrode through hole matching the negative electrode tab 101b, and the negative electrode through hole is used for the negative electrode tab 101b to pass through.
  • the wire harness isolation unit 40 is further provided with an explosion-proof valve through hole, and the explosion-proof valve through hole is used for the explosion-proof valve 101c to pass through.
  • the wire harness isolation unit 40 and the battery cell unit 10 are welded and fixed to the battery core unit tabs through the battery core bus bar 41, and the battery cells are fixed after fixing.
  • the positive electrode tab 101a and the negative electrode tab 101b of each unit cell in the unit 10 extend out and are electrically connected to the flexible circuit board integrated on the wire harness isolation unit 40; the flexible circuit board is electrically connected to the tabs of each unit battery , which is conducive to reducing the number of wiring harnesses in the package and realizing a highly integrated design of large modules.
  • the side of the wire harness isolation unit 40 close to the cell unit 10 is fixed by welding the cell bus bar to the cell tabs, so that the wire harness isolation unit 40 and the cell unit are fixed. 10
  • the connection is stable, thereby ensuring the stability of the wiring line connection.
  • a battery module provided in the embodiment of this specification further includes a collection processor 60, and the collection processor 60 is connected to each of the battery cells 10 through the flexible circuit board, so that the collection processor 60 can be connected to each of the battery cells 10.
  • the collection processor 60 can be connected to each of the battery cells 10.
  • On the positive electrode tab 101a and the negative electrode tab 101b of the single battery 101 to monitor the output voltage, current, and battery temperature of each cell unit 10 and other indicators, and provide the battery management unit with information on battery efficiency and usage status , so that the battery module can be maintained, repaired or replaced in time when it is detected that the battery module is in a poor state.
  • the intermediate reinforcing plate 24 is provided with a stepped structure 241 , and the stepped structure 241 is provided at one end of the intermediate reinforcing plate 24 close to the first end plate 21 a and close to the first end plate 21 a .
  • the matching between the snap groove 211 and the stepped structure 241 means that the depth, width and length of the snap groove 211 match the three-dimensional size of the stepped structure 241 . ;
  • the number of the snap grooves 211 matches the number of the middle reinforcing plates 24; in addition, the The opening position corresponds to the position of the middle reinforcing plate 24 in the accommodating space.
  • the intermediate reinforcing plate 24 is connected to the first end plate 21a and the second end plate 21b by means of the stepped structure 24 and the clamping groove 211, the intermediate reinforcing plate 24 is also welded to the first end plate 21a and the second end plate 21b.
  • the stepped structure 24 is integrally connected with the first end plate 21a and the second end plate 21b, so that the module frame structure 20 is firmly connected.
  • the depth of the engaging groove 211 matches the stepped structure 241 , and the engaging groove 211 may be opened on the inner side of the first end plate 21 a (the inner side of the second end plate 21 b ), or it may be It is a through groove which penetrates the said 1st end plate 21a (2nd end plate 21b).
  • a side of the first end plate 21 a close to the middle reinforcing plate 24 and a side of the second end plate 21 b close to the middle reinforcing plate 24 are provided with recessed structures 212 .
  • the recessed structure 212 is spaced apart from the engaging groove 211 , and the recessed structure 212 is opposite to the battery cell unit 10 . Since the cell unit 10 may expand during the charge-discharge cycle, the recessed structure 212 can reserve a space required for thermal expansion of the cell unit 10 .
  • the module frame structure 20 further includes an upper fixing plate 25 and a lower fixing plate 26.
  • the upper fixing plate 25 is located at the On one side of the cell unit 10, the four sides of the upper fixing plate 25 are connected to the first end plate 21a, the front cover plate 22, the second end plate 21b and the rear cover plate 23.
  • the lower fixing plate 26 is located on the side of the cell unit 10 away from the upper fixing plate 25 .
  • the plate 21b is connected to the rear cover plate 23 . That is, the upper fixing plate 25 and the lower fixing plate 26 are respectively attached and connected to the two adjoining surfaces of each unit cell 101 .
  • the upper fixing plate 25 includes an upper fixing plate body and a first flange 251 , the first flanges 251 are located on both sides of the upper fixing plate body, and the first flanges 251 face the lower fixing plate 26 .
  • the first flange 251 is used to connect with the first end plate 21a and the second end plate 21b;
  • the lower fixing plate 26 includes a fixing plate body and a second flange 261, so
  • the second flanges 261 are located on both sides of the lower fixing plate body, the second flanges 261 extend toward the direction of the upper fixing plate 25, and the second flanges 261 are used for connecting with the first end
  • the plate 21a and the second end plate 21b are connected; the first flange 251 and the second flange 261 can improve the structural strength of the upper fixing plate 25 and the lower fixing plate 26 respectively, and also The connection strength of the module frame structure 20 can be improved.
  • the surface of the upper fixing plate 25 is further provided with reinforcing ribs 252 to improve the structural strength of the upper fixing plate 25 .
  • each single cell 101 faces the front cover 22 or the rear cover 23 , and the adjoining surface of each single cell 101 faces the upper
  • the fixing plate 24 or the lower fixing plate 26 each unit cell 101 faces the first end plate 21a or the second end plate 21b, and the bonding surfaces of two adjacent unit cells 101 are attached to each other.
  • the arrangement directions of the positive electrode tabs and the negative electrode tabs of the single cells 101 in the cell unit 10 are the same.
  • the positive electrode tabs of the single cells 101 101a are arranged close to the upper fixing plate 25, and the negative tabs 101b of the single cells 101 are arranged close to the lower fixing plate 26, which facilitates series-parallel cable connection after being stacked and arranged in the module frame structure.
  • the directions of the positive electrode tabs 101a and the negative electrode tabs 101b may be opposite to the above directions, and the directions of the tabs in different cell units 10 may be different.
  • the cooling structure 30 may further include a second cooling plate 32 and a third cooling plate 33 , and the second cooling plate 32 is disposed between the battery cell unit 10 and the upper fixing plate 25 , the third cooling plate 33 is disposed between the cell unit 10 and the lower fixing plate 26 . It should be noted that the size of the second cooling plate 32 and the third cooling plate 33 is large enough to be in sufficient contact with each cell unit 10 to achieve temperature adjustment of the cell unit 10 .
  • the first cooling plate 31 , the second cooling plate 32 and the third cooling plate 33 are communicated with each other through cooling liquid circulation pipes.
  • the second cooling plate 32 is disposed between the battery cell unit 10 and the upper fixing plate 25, therefore, under the action of its own gravity, the second cooling plate 32 can The adjoining surfaces of the single cells in the core unit 10 are attached to each other; the third cooling plate 33 is arranged between the battery core unit 10 and the lower fixing plate 26 , and the lower fixing plate 26 can support the first cooling plate 26 .
  • Three cooling plates 33 , and the third cooling plate 33 is attached to the other adjacent surface of the single battery in each cell unit 10 ; and the first cooling plate 31 is arranged between the adjacent cell units 10 .
  • each single cell 101 can be connected from the bottom surface to the two Each of the adjacent surfaces receives the cooling effect of the cooling structure 30 to improve the temperature management efficiency of the cell unit 10 .
  • glue is applied between the cell unit 10 and the first cooling plate 31 , and the cell unit 10 and the second cooling plate 32 are glued. Also, glue is applied between the cell unit 10 and the third cooling plate 33 . Since an intermediate reinforcing plate 24 may be disposed between the cell unit 10 and the first cooling plate 31 , at this time, between the cell unit 10 and the intermediate reinforcing plate 24 , the intermediate reinforcing plate 24 is reinforced. A glue coating process is performed between the plate 24 and the first cooling plate 31 .
  • the battery module provided in the embodiment of the present specification further includes a bus bar 50, the bus bar 50 includes a battery module bus bar 51 and a cell unit bus bar 52, and the cell unit bus bar 52 is used to connect each cell unit Connected to form a whole, the battery module bus bar 51 is used to connect the whole formed by the battery cells 10 to the positive and negative bases 70 .
  • each of the single cells 101 in the cell unit 10 realizes series-parallel connection through the flexible circuit board integrated in the wire harness isolation unit 40, and each cell unit 10 finally outputs a positive electrode and a negative electrode.
  • the battery cell unit bus bar 52 connects the battery cell units 10 to finally realize the output of the battery module as a positive electrode and a negative electrode.
  • the battery module bus bar 51 includes a battery module positive electrode bus bar and a battery module negative electrode bus bar, and the battery module positive electrode bus bar and the battery module negative electrode bus bar respectively connect the positive and negative electrodes output by the battery module. lead out, so as to realize the series-parallel connection between multiple battery modules.
  • one end of the cell unit bus bar 52 is connected to the positive electrode of the first cell unit 10, and the other end of the cell unit bus bar 52 is connected to the negative electrode of the second cell unit 10; the battery One end of the positive bus bar of the module is connected to the negative electrode of the first cell unit 10, and the other end is connected to the positive terminal of the positive and negative electrode base 70; one end of the negative bus bar of the battery module is connected to the second cell unit 10.
  • the positive pole of the battery module is connected to the positive pole of the battery module, and the other end of the negative pole busbar of the battery module is connected to the negative pole terminal of the positive and negative pole seat 70;
  • the battery cells 10 can be connected in series and parallel to each other through two or more battery cell unit bus bars 52 .
  • the positive and negative electrode holders 70 are disposed on the side of the upper fixing plate 25 close to the first end plate 21 a.
  • the positive and negative bases 70 include a support plate and a locking plate, the support plate and the locking plate are locked and connected by connecting pieces, and a positive electrode groove is provided on the support plate and a negative electrode groove, the positive electrode groove is used for connecting with the positive busbar of the battery module, and the negative electrode groove is used for connecting with the negative electrode busbar of the battery module.
  • the side of the first end plate 21a close to the upper fixing plate 25 is provided with a first opening 213, and the end of the upper fixing plate 25 close to the first end plate 21a is provided with a second opening 253, so The second opening 253 is matched with the first opening 213, and the end of the positive bus bar of the battery module that is connected to the positive electrode slot is provided with a third opening, and the connecting piece passes through the third opening in sequence.
  • the hole, the opening at the positive electrode slot, the second opening and the first opening firmly connect the battery module positive bus bar, the support plate, the upper fixing plate 25 and the first end plate 21a, and the battery module
  • One end of the set of positive bus bars is clamped between the positive groove of the support plate and the locking plate to form the positive terminal of the positive and negative base 70 .
  • a fourth opening is formed at one end of the negative electrode busbar of the battery module connected to the negative electrode slot, and the connecting piece passes through the fourth opening, the opening at the negative electrode slot, the second opening 253 and the first opening in sequence.
  • the opening 213 firmly connects the negative bus bar of the battery module, the supporting plate, the upper fixing plate 25 and the first end plate 21a, and one end of the negative bus bar of the battery module is clamped in the positive groove of the supporting plate and the lock.
  • the negative terminals of the positive and negative bases 70 are formed between the tight plates.
  • the positive and negative bases 70 are stably connected to the module frame structure 20 , and a series-parallel connection between a plurality of battery modules can be achieved through the respective positive and negative bases 70 .
  • connection method adopted by the positive and negative electrode holders 70 and the relative positional relationship with the module frame structure are only exemplary, and the positive and negative electrode holders 70 may also adopt other
  • set the positive and negative pole seat 70 on the end of the upper fixing plate 25 close to the second end plate 21b, or set the positive and negative pole socket 70 on the first end plate 21a is away from the side of the intermediate reinforcing plate 24 and so on.
  • connection structures are used to realize the Assembly of battery modules.
  • the battery module further includes a buffer structure 80 , the buffer structure 80 is disposed between two adjacent single cells 101 , and the buffer structure 80 is used for the battery cell unit. 10.
  • the thermal expansion generated during the charge-discharge cycle acts as a buffer to avoid battery damage caused by the extrusion of each single battery in the thermal expansion process, which is beneficial to improve battery service life.
  • the buffer structure 80 may be arranged at intervals from the unit cells 101 ; it may also be arranged as shown in FIG. 1 , each two unit cells 101 form a pair, and the buffer structure 80 is located between the pair of unit cells. between.
  • each buffer structure 80 in FIG. 1 is shown protruding from the single battery 101.
  • the buffer structure 80 is flush with the adjoining surface of each unit cell 101 .
  • Embodiments of the present specification further provide a vehicle, including the battery module described in the foregoing technical method.
  • a battery module provided by the embodiments of this specification is specially provided with a module frame structure for the battery cell unit that is placed sideways (referring to the battery cell unit whose tabs are not placed upward or downward), wherein the middle reinforcing plate is provided with a module frame structure.
  • the cooling structure arranged on the basis of the frame structure of the module can provide effective cooling and cooling effect for the battery cell unit, realize the provision of space for the arrangement of the cooling device and the thermal expansion space of the power supply core, and at the same time improve the energy density of the battery pack. In addition, there is no need to repeatedly develop batteries, which is beneficial to reduce the cost of battery modules.
  • the combination of the buffer structure 80 and the recessed structure 212 is adopted to provide sufficient thermal expansion space for the cell unit 80; Provide a suitable working temperature environment for the battery module to avoid local overheating or thermal runaway caused by the huge heat generation of the battery module; thus avoiding the damage of the single battery and the leakage of the conductive liquid in the single battery caused by the thermal expansion of the single battery. Risk, and avoid the extrusion of the module frame structure caused by the thermal expansion of the battery cell unit, avoid the risk of the module frame structure falling apart, and help prolong the service life of the battery module.

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Abstract

Provided is a battery module, comprising battery cell units and a module frame structure, wherein the battery cell units are arranged in the module frame structure; the module frame structure comprises a first end plate, a second end plate, a front cover plate, a rear cover plate, and at least one intermediate reinforcement plate; the first end plate, the front cover plate, the second end plate and the rear cover plate enclose an accommodating space; the intermediate reinforcement plate is connected to the first end plate and the second end plate to divide the accommodating space into cavities arranged in columns; the battery cell units are correspondingly arranged in the cavities; the battery cell unit comprises at least two cells arranged from the first end plate to the second end plate; tabs of the cells in each battery cell unit face the same direction; and the tabs of the cells face the front cover plate or the rear cover plate. In the present application, a module frame structure is specifically provided for laterally arranged battery cell units, such that the size of the laterally arranged battery cells can be fully used to match a space inside a battery pack, and therefore, there is no need to repeatedly develop battery cell units, thereby reducing the cost of the battery module.

Description

一种电池模组及车辆A battery module and vehicle 技术领域technical field
本发明涉及电池技术领域，特别涉及一种电池模组及车辆。The present invention relates to the technical field of batteries, in particular to a battery module and a vehicle.
背景技术Background technique
在国家政策和市场的驱动下，电动汽车得以迅速发展，因此也带来了对动力电池越来越旺盛的需求。如何在有限的空间中放置更多的电芯来提高整包的能量密度，从而提高续航里程，越来越受到人们的关注。Driven by national policies and markets, the rapid development of electric vehicles has also brought about a growing demand for power batteries. How to place more cells in a limited space to improve the energy density of the whole package, thereby improving the cruising range, has attracted more and more attention.
现有电池包技术中，电芯是其核心部件。电芯通过各种的放置方式，例如：单独布置或被设计成为模组，再固定到电池包内。为配合不同车型车辆所具有的动力电池包的空间，电芯需选用不同尺寸或规格以满足包内空间需求，这又造成了电池包规格的重复开发，带来高昂的开发成本。In the existing battery pack technology, the battery cell is its core component. The cells are placed in various ways, such as individually arranged or designed as modules, and then fixed into the battery pack. In order to match the space of the power battery packs of different models of vehicles, the cells need to be selected in different sizes or specifications to meet the space requirements in the packs, which in turn results in repeated development of battery pack specifications and high development costs.
通常，电芯在20℃～40℃范围内时，其充放电性能最佳，也最有利于电芯的寿命。而电芯在高倍率充放电过程中产热量大，若热量急聚产生使得局部过热或温度不均，容易导致电池性能下降、容量和寿命的衰减，甚至导致电池热失控的发生。因此，现有技术中常采用液冷散热装置对其进行散热处理。然而，散热装置需具有与电芯尺寸相适配的体积以具有较佳的散热效率，额外增加了电池包的体积。在既有空间有限的情况下，则造成了电芯的尺寸的压缩，这与增加电芯数量以提高能量密度的理念之间存在着不易调和的矛盾。除此之外，电芯在其充放电的循环过程中会产生膨胀，因此，在电芯组装时需预留一定的空间。否则，电芯之间因热膨胀造成相互挤压，或者电芯对电池包外壳框架造成挤压，有造成电芯破损、电芯内导电液渗漏、外壳框架散架的风险。Usually, when the cell is in the range of 20℃～40℃, its charge and discharge performance is the best, and it is also most beneficial to the life of the cell. However, during the high-rate charge and discharge process, the battery generates a large amount of heat. If the heat accumulates rapidly, causing local overheating or uneven temperature, it will easily lead to the decline of battery performance, the attenuation of capacity and life, and even the occurrence of thermal runaway of the battery. Therefore, in the prior art, a liquid-cooled heat dissipation device is often used to dissipate heat. However, the heat dissipation device needs to have a volume suitable for the size of the battery cell to have better heat dissipation efficiency, which increases the volume of the battery pack. When the existing space is limited, the size of the cells is compressed, which is not easy to reconcile with the concept of increasing the number of cells to improve the energy density. In addition, the battery cell will expand during the cycle of charging and discharging, so a certain space needs to be reserved when the battery cell is assembled. Otherwise, the cells may be squeezed against each other due to thermal expansion, or the cells may be squeezed against the casing frame of the battery pack, which may cause damage to the cells, leakage of the conductive liquid in the cells, and the risk of the casing frame falling apart.
针对现有技术存在的上述问题，本申请旨在提供一种电池模组及车辆，能够协调提高电芯能量密度与提供供冷却装置的布置和供电芯热膨胀的空间之间的问题，并且在无需重复开发电芯，有利于降低电池模组成本。In view of the above problems existing in the prior art, the present application aims to provide a battery module and a vehicle, which can coordinate the problems between improving the energy density of the battery cells and providing the space for the arrangement of the cooling device and the thermal expansion of the power supply core, and without the need for Repeated development of battery cells will help reduce the cost of battery modules.
发明内容SUMMARY OF THE INVENTION
针对现有技术的上述问题，本发明的目的在于提供一种电池模组，包括电 芯单元和模组框架结构，所述电芯单元设置在所述模组框架结构内；In view of the above-mentioned problems of the prior art, the purpose of the present invention is to provide a battery module, comprising a cell unit and a module frame structure, and the cell unit is arranged in the module frame structure;
所述模组框架结构包括第一端板、第二端板、前盖板、后盖板和至少一个中间加强板，所述第一端板、前盖板、第二端板和所述后盖板围合形成容置空间，每个所述中间加强板连接所述第一端板和所述第二端板，所述中间加强板将所述容置空间分为至少两个成列排布的容腔；The module frame structure includes a first end plate, a second end plate, a front cover plate, a rear cover plate and at least one middle reinforcing plate, the first end plate, the front cover plate, the second end plate and the rear The cover plate is enclosed to form an accommodating space, each of the middle reinforcing plates is connected to the first end plate and the second end plate, and the middle reinforcing plate divides the accommodating space into at least two rows the volume of the cloth;
每个所述容腔内对应设置一个所述电芯单元，每个所述电芯单元包括至少两个由第一端板向第二端板排列设置的单体电池，每个所述电芯单元中所有所述单体电池的极耳朝向相同，所述单体电池的极耳朝向所述前盖板或所述后盖板。One of the battery cells is correspondingly arranged in each of the cavities, and each of the battery cells includes at least two single cells arranged from the first end plate to the second end plate, and each of the battery cells The tabs of all the single cells in the unit face the same direction, and the tabs of the single cells face the front cover or the rear cover.
进一步地，所述电池模组还包括冷却结构，所述冷却结构设置在所述模组框架结构内，所述冷却结构包括第一冷却板，所述第一冷却板位于相邻两个所述电芯单元之间。Further, the battery module further includes a cooling structure, the cooling structure is arranged in the frame structure of the module, the cooling structure includes a first cooling plate, and the first cooling plate is located in two adjacent ones of the between cell units.
进一步地，所述极耳设置在所述单体电池的顶面上，所述极耳包括正极极耳和负极极耳，所述正极极耳和所述负极极耳沿所述顶面的长度方向排布；每个所述单体电池还包括两个贴合面，两个所述贴合面分别与所述顶面的两条长边相连接，相邻的两个所述单体电池通过所述贴合面贴合连接。Further, the tabs are arranged on the top surface of the single battery, the tabs include a positive tab and a negative tab, and the positive tab and the negative tab are along the length of the top surface. Directional arrangement; each of the single cells further includes two bonding surfaces, the two bonding surfaces are respectively connected with the two long sides of the top surface, and the two adjacent single cells The connection is made by bonding through the bonding surface.
具体地，所述电池模组还包括线束隔离单元，所述线束隔离单元设置在所述电芯单元与所述前盖板之间和/或所述电芯单元与所述后盖板之间和/或所述电芯单元与所述中间加强板之间，所述线束隔离单元上集成有柔性电路板和电芯汇流排，所述柔性电路板与所述正极极耳和所述负极极耳相连接。Specifically, the battery module further includes a wire harness isolation unit, and the wire harness isolation unit is disposed between the battery cell unit and the front cover and/or between the battery cell and the rear cover And/or between the cell unit and the middle reinforcing plate, a flexible circuit board and a cell busbar are integrated on the wire harness isolation unit, and the flexible circuit board is connected to the positive electrode tab and the negative electrode. ear connected.
优选地，所述正极极耳和所述负极极耳分别与所述电芯汇流排焊接使得所述电芯单元与所述线束隔离单元固定相连。。Preferably, the positive electrode tabs and the negative electrode tabs are respectively welded to the cell busbars so that the cell cell units are fixedly connected to the wire harness isolation unit. .
进一步地，所述线束隔离单元上设有与所述正极极耳相匹配的正极通孔，所述正极通孔用于供所述正极极耳穿过；所述线束隔离单元上还设有与所述负极极耳相匹配的负极通孔，所述负极通孔用于供所述负极极耳穿过。Further, the wire harness isolation unit is provided with a positive electrode through hole that matches the positive electrode tab, and the positive electrode through hole is used for the positive electrode tab to pass through; the wire harness isolation unit is also provided with a The negative electrode through holes are matched with the negative electrode tabs, and the negative electrode through holes are used for the negative electrode tabs to pass through.
进一步地，还包括采集处理器，所述采集处理器用于监测所述电芯单元，所述电芯单元与所述采集处理器通过所述柔性电路板相连接。Further, an acquisition processor is also included, the acquisition processor is used to monitor the cell unit, and the cell unit and the acquisition processor are connected through the flexible circuit board.
具体地，所述中间加强板设有台阶结构，所述台阶结构设置在所述中间加强板靠近所述第一端板的一端和靠近所述第二端板的一端；所述第一端板和所述第二端板均设有卡接槽，所述卡接槽与所述台阶结构相匹配，所述第一端板 与所述中间加强板、所述第二端板与所述中间加强板均通过所述台阶结构和所述卡接槽相连接。Specifically, the middle reinforcing plate is provided with a stepped structure, and the stepped structure is arranged at one end of the middle reinforcing plate close to the first end plate and an end close to the second end plate; the first end plate and the second end plate are provided with a snap groove, the snap groove matches the step structure, the first end plate and the middle reinforcing plate, the second end plate and the middle The reinforcing plates are all connected with the clamping groove through the stepped structure.
进一步地，所述第一端板靠近所述中间加强板的一侧和所述第二端板靠近所述中间加强板的一侧均设有凹陷结构，所述凹陷结构与所述卡接槽间隔设置，所述凹陷结构与所述电芯单元相对。Further, a side of the first end plate close to the middle reinforcing plate and a side of the second end plate close to the middle reinforcing plate are provided with a concave structure, and the concave structure is connected to the clamping groove. The recessed structures are arranged at intervals, and the recessed structures are opposite to the battery cell units.
具体地，所述模组框架结构还包括上固定板和下固定板，所述上固定板位于所述电芯单元的一侧，所述上固定板的四条侧边分别与所述第一端板、前盖板、第二端板和所述后盖板相连接，所述下固定板位于所述电芯单元远离所述上固定板的一侧，所述下固定板的四条侧边分别与所述第一端板、前盖板、第二端板和所述后盖板相连接。Specifically, the module frame structure further includes an upper fixing plate and a lower fixing plate, the upper fixing plate is located on one side of the cell unit, and four sides of the upper fixing plate are respectively connected to the first end The plate, the front cover, the second end plate and the rear cover are connected, the lower fixing plate is located on the side of the cell unit away from the upper fixing plate, and the four sides of the lower fixing plate are respectively It is connected with the first end plate, the front cover plate, the second end plate and the rear cover plate.
进一步地，所述上固定板包括上固定板本体和第一翻边，所述第一翻边位于所述上固定板本体的两侧，所述第一翻边向所述下固定板的方向延伸；所述下固定板包括下固定板本体和第二翻边，所述第二翻边位于所述下固定板本体的两侧，所述第二翻边向所述上固定板的方向延伸。Further, the upper fixing plate includes an upper fixing plate body and a first flange, the first flanges are located on both sides of the upper fixing plate body, and the first flange faces the direction of the lower fixing plate extending; the lower fixing plate includes a lower fixing plate body and a second flange, the second flanges are located on both sides of the lower fixing plate body, and the second flange extends in the direction of the upper fixing plate .
优选地，所述上固定板的表面和所述下固定板的表面均设有加强筋。Preferably, reinforcing ribs are provided on the surface of the upper fixing plate and the surface of the lower fixing plate.
具体地，所述冷却结构还包括第二冷却板和第三冷却板，所述第二冷却板设置在所述电芯单元与所述上固定板之间，所述第三冷却板设置在所述电芯单元与所述下固定板之间，所述第一冷却板、第二冷却板和所述第三冷却板通过冷却液流通管道相连通。Specifically, the cooling structure further includes a second cooling plate and a third cooling plate, the second cooling plate is arranged between the battery cell unit and the upper fixing plate, and the third cooling plate is arranged at the Between the battery cell unit and the lower fixing plate, the first cooling plate, the second cooling plate and the third cooling plate are communicated through a cooling liquid circulation pipe.
优选地，所述电芯单元与所述第一冷却板之间、所述电芯单元与所述第二冷却板之间以及所述电芯单元与所述第三冷却板之间均涂胶处理，所述中间加强板与所述第一冷却板之间以及所述中间加强板与所述电芯单元之间均涂胶处理。Preferably, glue is applied between the cell unit and the first cooling plate, between the cell unit and the second cooling plate, and between the cell unit and the third cooling plate Treatment, glue is applied between the middle reinforcing plate and the first cooling plate and between the middle reinforcing plate and the battery cell unit.
具体地，还包括汇流排，所述汇流排包括电池模组汇流排和电芯单元汇流排，所述电芯单元汇流排用于将各所述电芯单元连接形成一个整体，所述电池模组汇流排用于将各所述电芯单元连成的整体与正负极座相连接。Specifically, it also includes a bus bar, the bus bar includes a battery module bus bar and a battery cell unit bus bar, and the battery cell unit bus bar is used to connect each of the battery cell units to form a whole, the battery module bus bar The set of bus bars is used to connect the whole of the battery cells to the positive and negative pole seats.
优选地，还包括缓冲结构，所述缓冲结构设置在相邻两个所述单体电池之间。Preferably, a buffer structure is also included, and the buffer structure is disposed between two adjacent single cells.
本发明另一方面保护一种车辆，包括上述技术方案所述的电池模组。Another aspect of the present invention protects a vehicle including the battery module described in the above technical solution.
由于上述技术方案，本发明具有以下有益效果：Due to the above-mentioned technical scheme, the present invention has the following beneficial effects:
1)本发明提供一种电池模组，专为侧放的电芯单元设置了模组框架结构，所述中间加强板不仅能够提高模组框架结构的结构强度，并提供了供各个电芯单元布置的容腔，使得电芯单元之间不会过度贴合，有利于避免电芯单元热膨胀造成的互相挤压，有利于避免电芯单元之间的短路风险。1) The present invention provides a battery module, which is specially provided with a module frame structure for the battery cell units placed on the side. The cavities are arranged so that the battery cells will not be over-fitted, which is beneficial to avoid mutual extrusion caused by thermal expansion of the battery cells, and is beneficial to avoid the risk of short circuit between the battery cells.
2)本发明提供一种电池模组，无需重复开发电芯尺寸，可以充分利用侧放电芯的尺寸来匹配电池包内部空间，有利于降低电池模组成本。2) The present invention provides a battery module, which does not need to repeatedly develop the size of the battery cell, and can make full use of the size of the side discharge core to match the internal space of the battery pack, which is beneficial to reduce the cost of the battery module.
3)本发明提供的侧放电芯的电池模组，在此模组框架结构的基础上布置的冷却结构，能够贴合电芯单元以提高对电芯单元的冷却作用，提供电芯单元合适的工作温度环境，避免电池模组产热巨大造成局部过热或热失控；实现了提供供冷却装置布置的空间、供电芯热膨胀的空间与提高电池包的能量密度之间的协调。3) In the battery module of the side discharge core provided by the present invention, the cooling structure arranged on the basis of the frame structure of the module can fit the battery cell unit to improve the cooling effect on the battery core unit, and provide a suitable battery cell unit. The working temperature environment avoids local overheating or thermal runaway caused by the huge heat generation of the battery module; it realizes the coordination between providing space for the arrangement of cooling devices, space for thermal expansion of the power supply core and improving the energy density of the battery pack.
附图说明Description of drawings
为了更清楚地说明本发明的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单的介绍。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它附图。In order to illustrate the technical solutions of the present invention more clearly, the following will briefly introduce the accompanying drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.
图1是本发明实施例提供的一种电池模组的***示意图；1 is an exploded schematic diagram of a battery module provided by an embodiment of the present invention;
图2是本发明实施例提供的另一种电池模组的***示意图；2 is an exploded schematic diagram of another battery module provided by an embodiment of the present invention;
图3是所述电池模组组装后的结构示意图；3 is a schematic structural diagram of the assembled battery module;
图4是所述电池模组装配示意图；4 is a schematic diagram of the assembly of the battery module;
图5是本发明实施例中所述单体电池的结构示意图；5 is a schematic structural diagram of the single cell in the embodiment of the present invention;
图6是所述模组框架结构的结构示意图；Fig. 6 is the structural representation of described module frame structure;
图7是第一端板/第二端板的俯视图；Figure 7 is a top view of the first end plate/second end plate;
图8是上固定板的结构示意图；Fig. 8 is the structural representation of the upper fixing plate;
图9是线束隔离单元的结构示意图。FIG. 9 is a schematic diagram of the structure of the wire harness isolation unit.
图中：10-电芯单元，101-单体电池，101a-正极极耳，101b-负极极耳，101c-防爆阀，20-模组框架结构，21a-第一端板，21b-第二端板，211-卡接槽，212-凹陷结构，213-第一开孔，22-前盖板，23-后盖板，24-中间加强板，241-台阶结构，25-上固定板，251-第一翻边，252-加强筋，253-第二开孔，26-下固定板，261-第二翻边，30-冷却结构，31-第一冷却板，32-第二冷却板，33-第三冷却板，40- 线束隔离单元，41-电芯汇流排，42-柔性电路板，50-汇流排，51-电池模组汇流排，52-电芯单元汇流排，60-采集处理器，70-正负极座，80-缓冲结构。In the figure: 10-cell unit, 101-single battery, 101a-positive tab, 101b-negative tab, 101c-explosion-proof valve, 20-module frame structure, 21a-first end plate, 21b-second End plate, 211-clamping groove, 212-depressed structure, 213-first opening, 22-front cover plate, 23-rear cover plate, 24-intermediate reinforcing plate, 241-step structure, 25-upper fixing plate, 251-first flange, 252-reinforcing rib, 253-second opening, 26-lower fixing plate, 261-second flange, 30-cooling structure, 31-first cooling plate, 32-second cooling plate , 33-Third cooling plate, 40- Harness isolation unit, 41-Cell busbar, 42-Flexible circuit board, 50-Busbar, 51-Battery module busbar, 52-Cell unit busbar, 60- Acquisition processor, 70-positive and negative pole seat, 80-buffer structure.
具体实施方式detailed description
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。术语“上”、“下”、“前”、“后”是以附图所示的角度来进行描述的，只是为了方便描述各部件之间的相对位置关系，这当然也包括了采用不同参考方向时与其等同的相对位置关系的限定方式。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. The terms "upper", "lower", "front" and "rear" are described from the angles shown in the drawings, which are only for the convenience of describing the relative positional relationship between various components, which of course also includes the use of different references A way of defining the relative positional relationship that is equivalent to the direction. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion.
实施例Example
结合图1至图9，本实施例提供一种电池模组，包括电芯单元10、模组框架结构20和冷却结构30，所述电芯单元10和所述冷却结构30均设置在所述模组框架结构20内；1 to 9 , this embodiment provides a battery module including a battery cell unit 10 , a module frame structure 20 and a cooling structure 30 , the battery cell unit 10 and the cooling structure 30 are both arranged in the Inside the module frame structure 20;
所述模组框架结构20包括第一端板21a、第二端板21b、前盖板22、后盖板23和至少一个中间加强板24，所述第一端板21a、前盖板22、第二端板21b和所述后盖板23围合形成容置空间，所述中间加强板24的两端分别与所述第一端板21a和所述第二端板21b相连接，所述中间加强板24将所述容置空间分为至少两个成列排布的容腔；即本说明书实施例中，所述第一端板21a与所述第二端板21b相对设置，所述前盖板22和所述后盖板23相对设置；且优选地，所述中间加强板24在所述容置空间内均匀分布，将所述容置空间较为平均地分隔为两个或两个以上容腔；The module frame structure 20 includes a first end plate 21a, a second end plate 21b, a front cover plate 22, a rear cover plate 23 and at least one middle reinforcing plate 24. The first end plate 21a, the front cover plate 22, The second end plate 21b and the rear cover plate 23 are enclosed to form an accommodating space. Both ends of the middle reinforcing plate 24 are respectively connected to the first end plate 21a and the second end plate 21b. The middle reinforcing plate 24 divides the accommodating space into at least two cavities arranged in a row; that is, in the embodiment of this specification, the first end plate 21a and the second end plate 21b are disposed opposite to each other, and the The front cover plate 22 and the rear cover plate 23 are arranged opposite to each other; and preferably, the middle reinforcing plates 24 are evenly distributed in the accommodating space, and the accommodating space is evenly divided into two or two the above volume;
每个所述容腔内对应设置有一个所述电芯单元10，即所述电芯单元10的数 量与所述容腔的数量相等，每个所述电芯单元10包括至少两个由所述第一端板21a向所述第二端板21b排列设置的单体电池101，每个所述电芯单元10中所有的所述单体电池101的极耳朝向相同，且所述单体电池101的极耳朝向所述前盖板22或朝向所述后盖板23。One of the cell units 10 is correspondingly disposed in each of the cavities, that is, the number of the cell units 10 is equal to the number of the cavities, and each of the cell units 10 includes at least two The single cells 101 arranged from the first end plate 21a to the second end plate 21b, the tabs of all the single cells 101 in each cell unit 10 are oriented in the same direction, and the single cells 101 are arranged in the same direction. The tabs of the battery 101 face the front cover 22 or the rear cover 23 .
所述冷却结构30包括第一冷却板31，所述第一冷却板31位于相邻两个所述电芯单元10之间。The cooling structure 30 includes a first cooling plate 31 , and the first cooling plate 31 is located between two adjacent battery cells 10 .
本说明书实施例提供的电池模组中，同一个所述电芯单元10中的各单体电池101极耳朝向相同，从而有利于单体电池之间串并联布线，降低布线难度和复杂度，并且能够起到结构紧凑以及节约空间的作用。In the battery module provided by the embodiments of this specification, the tabs of the single cells 101 in the same cell unit 10 are oriented in the same direction, which facilitates series-parallel wiring between the single cells and reduces the difficulty and complexity of wiring. And can play the role of compact structure and space saving.
现有技术中，由于电芯单元10通常具有较大尺寸，即电芯单元10在沿第一端板21a到第二端板21b的方向上具有较长距离，因此，冷却板通常也需要设计有较大尺寸以满足制冷需求。然而当水冷板长度较长时，水冷板受重力影响其中间段与电池模组之间容易存有较大空隙，无法紧贴电池模组从而降低冷却效果。若采取将水冷板上通过紧固件或者焊接的方式将水冷板与电池模组固定连接的方式，则会影响水冷板内部冷却液的流通。In the prior art, since the cell unit 10 generally has a larger size, that is, the cell unit 10 has a longer distance along the direction from the first end plate 21a to the second end plate 21b, the cooling plate also usually needs to be designed Available in larger sizes for cooling needs. However, when the length of the water-cooling plate is long, a large gap is likely to exist between the middle section of the water-cooling plate and the battery module due to the influence of gravity, and the water-cooling plate cannot be closely attached to the battery module, thereby reducing the cooling effect. If the water-cooling plate is fixedly connected to the battery module by means of fasteners or welding, the circulation of the cooling liquid inside the water-cooling plate will be affected.
本说明书实施例中，由于所述第一冷却板31设置在相邻的两个所述电芯单元10之间，从而第一冷却板31能够被相邻的两个电芯单元夹持而与电池单元保持贴合，因此能够同时为两个电芯单元10提供冷却作用。In the embodiment of the present specification, since the first cooling plate 31 is disposed between the two adjacent battery cells 10, the first cooling plate 31 can be sandwiched by the two adjacent battery cells and is The battery cells remain in contact, thus providing cooling for both battery cells 10 at the same time.
如图5所示，为所述单体电池101的结构示意图，所述单体电池101包括顶面、底面、两个贴合面和两个邻接面，所述顶面与所述底面相对设置，所述顶面为长方形，所述顶面包括两个相对设置的长边和两个相对设置的短边；所述两个所述贴合面相对设置，且两个所述贴合面与所述顶面的长边相连接；两个所述邻接面相对设置，两个所述邻接面与所述顶面的短边相连接。As shown in FIG. 5 , which is a schematic structural diagram of the single cell 101 , the single cell 101 includes a top surface, a bottom surface, two bonding surfaces and two adjoining surfaces, and the top surface and the bottom surface are disposed opposite to each other. , the top surface is a rectangle, and the top surface includes two oppositely arranged long sides and two oppositely arranged short sides; the two said bonding surfaces are arranged oppositely, and the two said bonding surfaces are The long sides of the top surface are connected; the two adjoining surfaces are arranged opposite to each other, and the two adjoining surfaces are connected with the short sides of the top surface.
所述极耳设置在所述单体电池101的顶面上，所述极耳包括正极极耳101a和负极极耳101b，所述正极极耳101a和所述负极极耳101b沿所述顶面的长度方向排布。相邻的两个所述单体电池101通过所述贴合面贴合连接，从而单体电池101由所述第一端板21a向所述第二端板21b排列，且以单体电池101的厚度方向堆叠。The tabs are arranged on the top surface of the unit cell 101, and the tabs include a positive tab 101a and a negative tab 101b, and the positive tab 101a and the negative tab 101b are located along the top surface. lengthwise arrangement. The two adjacent single cells 101 are attached and connected through the bonding surface, so that the single cells 101 are arranged from the first end plate 21a to the second end plate 21b, and the single cells 101 stack in the thickness direction.
如图5所示，所述单体电池101上还设置有防爆阀101c，所述防爆阀101c设置在所述正极极耳101a和所述负极极耳101b之间。As shown in FIG. 5 , the single battery 101 is further provided with an explosion-proof valve 101c, and the explosion-proof valve 101c is disposed between the positive electrode tab 101a and the negative electrode tab 101b.
本说明书实施例提供的一种电池模组，其中各电池单元10中的单体电池侧向放置(如图1或2所示)，能够适配于具有较高高度的电池包。例如：电池包的高度与单体电池的长度基本相等，此时若仍采取将单体电池极耳朝上的方式布置电池模组，就会造成电池包在其高度空间上的浪费，对电池包能量密度产生严重不利影响。此时，采用如本申请提供的将单体电池侧放的方式以充分利用电池包高度空间；在电池包内布置多列电芯单元以充分利用电池包长度及宽度空间，使得电池包内有限的空间得到了充分的利用。In a battery module provided by the embodiments of this specification, the single cells in each battery unit 10 are placed laterally (as shown in FIG. 1 or 2 ), which can be adapted to a battery pack with a higher height. For example, the height of the battery pack is basically the same as the length of the single battery. At this time, if the battery module is still arranged with the tabs of the single battery facing up, it will cause a waste of the battery pack in its height space, and the battery Packet energy density has a serious adverse effect. At this time, the method of placing the single battery on the side as provided in this application is used to make full use of the height space of the battery pack; multiple rows of battery cells are arranged in the battery pack to make full use of the length and width space of the battery pack, so that there is limited space in the battery pack. space is fully utilized.
本说明书实施例提供的一种电池模组还包括线束隔离单元40，所述线束隔离单元40设置在所述电芯单元10与所述前盖板22之间和/或所述电芯单元10与所述后盖板23之间和/或所述电芯单元10与所述中间加强板24之间。A battery module provided in the embodiment of this specification further includes a wire harness isolation unit 40 , and the wire harness isolation unit 40 is disposed between the battery cell unit 10 and the front cover 22 and/or the battery cell unit 10 and the rear cover plate 23 and/or between the battery cell unit 10 and the middle reinforcing plate 24 .
所述线束隔离单元40上集成有柔性电路板(Flexible Printed Circuit)和电芯汇流排，所述柔性电路板、电芯汇流排分别和与之相邻的电芯单元中的各单体电池101的正极极耳101a和负极极耳101b相连接，起到采集各单体电池低压信号和动力连接作用。所述线束隔离单元40能够起到绝缘作用，避免电芯单元10中的单体电池101之间发生短路。优选地，本说明书实施例提供的电池模组中，所述线束隔离单元40的数量与所述电芯单元10的数量相同。当电芯单元10的数量大于两个时，则必然有一个电芯单元10的极耳朝向所述中间加强板24，因此该线束隔离单元40设置在中间加强板24和该所述电芯单元10之间。The wire harness isolation unit 40 is integrated with a flexible printed circuit board (Flexible Printed Circuit) and a cell bus bar, and the flexible printed circuit board and the cell bus bar are respectively connected with each unit cell 101 in the adjacent cell unit. The positive electrode tab 101a and the negative electrode tab 101b are connected to collect the low voltage signal of each single battery and connect the power. The wire harness isolation unit 40 can play an insulating role to avoid short circuit between the single cells 101 in the battery cell unit 10 . Preferably, in the battery module provided by the embodiment of this specification, the number of the wire harness isolation units 40 is the same as the number of the battery cell units 10 . When the number of cell units 10 is greater than two, the tab of one cell unit 10 must face the middle reinforcing plate 24 , so the wire harness isolation unit 40 is disposed between the middle reinforcing plate 24 and the cell unit. between 10.
所述线束隔离单元40上设有与所述正极极耳101a相匹配的正极通孔，所述正极通孔用于供所述正极极耳穿过，此处，所述正极通孔与所述正极极耳101a相匹配是指：所述正极通孔的形状以及大小与所述正极极耳101a的形状和大小相匹配，所述正极通孔的数量与电芯单元10中各单体电池的数量相适配，且正极通孔开设在所述线束隔离单元40上的位置与各个正极极耳101a相对于电芯单元10的位置相匹配。类似地，所述线束隔离单元40上还设有与负极极耳101b相匹配的负极通孔，所述负极通孔用于供所述负极极耳101b穿过。The wire harness isolation unit 40 is provided with a positive electrode through hole matching the positive electrode tab 101a, and the positive electrode through hole is used for the positive electrode tab to pass through. The matching of the positive electrode tabs 101a means that the shape and size of the positive electrode through-holes match the shape and size of the positive electrode tabs 101a, and the number of the positive electrode through-holes is the same as that of each single cell in the cell unit 10. The number of the positive electrode through holes is matched, and the positions of the positive electrode through holes on the wire harness isolation unit 40 match the positions of the positive electrode tabs 101 a relative to the battery cell unit 10 . Similarly, the wire harness isolation unit 40 is further provided with a negative electrode through hole matching the negative electrode tab 101b, and the negative electrode through hole is used for the negative electrode tab 101b to pass through.
进一步地，所述线束隔离单元40上还设有防爆阀通孔，所述防爆阀通孔用于供所述防爆阀101c穿过。Further, the wire harness isolation unit 40 is further provided with an explosion-proof valve through hole, and the explosion-proof valve through hole is used for the explosion-proof valve 101c to pass through.
通过所述正极通孔、负极通孔和所述防爆阀通孔，所述线束隔离单元40与所述电芯单元10通过电芯汇流排41与电芯单元极耳焊接固定，固定后电芯单元10中各单体电池的正极极耳101a、负极极耳101b伸出并与集成在线束隔离 单元40上的柔性电路板电性连接；柔性电路板与各单体电池的极耳电性相连，有利于减少包内线束数量，实现大模组的高度集成化设计。Through the positive electrode through hole, the negative electrode through hole and the explosion-proof valve through hole, the wire harness isolation unit 40 and the battery cell unit 10 are welded and fixed to the battery core unit tabs through the battery core bus bar 41, and the battery cells are fixed after fixing. The positive electrode tab 101a and the negative electrode tab 101b of each unit cell in the unit 10 extend out and are electrically connected to the flexible circuit board integrated on the wire harness isolation unit 40; the flexible circuit board is electrically connected to the tabs of each unit battery , which is conducive to reducing the number of wiring harnesses in the package and realizing a highly integrated design of large modules.
优选地，本说明书实施例中，所述线束隔离单元40靠近电芯单元10的侧面上通过电芯汇流排焊接到电芯极耳上而被固定，使得线束隔离单元40与所述电芯单元10连接稳固，从而保证了布线线路连接的稳固性。Preferably, in the embodiment of this specification, the side of the wire harness isolation unit 40 close to the cell unit 10 is fixed by welding the cell bus bar to the cell tabs, so that the wire harness isolation unit 40 and the cell unit are fixed. 10 The connection is stable, thereby ensuring the stability of the wiring line connection.
本说明书实施例提供的一种电池模组还包括采集处理器60，所述采集处理器60与各所述电芯单元10通过所述柔性电路板相连接，从而采集处理器60能够连接至各个单体电池101的正极极耳101a和负极极耳101b上，以实现对各电芯单元10的输出电压、电流、以及电池温度等指标进行监测，提供电池管理单元有关电池效率、使用状态的情报，使得在监测到电池模组状态欠佳时及时对电池模组进行维护、维修或更换处理。A battery module provided in the embodiment of this specification further includes a collection processor 60, and the collection processor 60 is connected to each of the battery cells 10 through the flexible circuit board, so that the collection processor 60 can be connected to each of the battery cells 10. On the positive electrode tab 101a and the negative electrode tab 101b of the single battery 101, to monitor the output voltage, current, and battery temperature of each cell unit 10 and other indicators, and provide the battery management unit with information on battery efficiency and usage status , so that the battery module can be maintained, repaired or replaced in time when it is detected that the battery module is in a poor state.
如图6所示，本说明书实施例中，所述中间加强板24设有台阶结构241，所述台阶结构241设置在所述中间加强板24靠近所述第一端板21a的一端和靠近第二端板21b的一端；所述第一端板21a和所述第二端板21b均设有卡接槽211，所述卡接槽211与所述台阶结构241相匹配，所述第一端板21a、第二端板21b与所述中间加强板24通过所述台阶结构241和所述卡接槽211相连接。此处，所述卡接槽211与所述台阶结构241相匹配是指：所述卡接槽211的开槽深度、开槽宽度以及开槽的长度与所述台阶结构241的三维尺寸相匹配；所述卡接槽211的数量与所述中间加强板24的数量相匹配；除此之外，所述卡接槽211在所述第一端板21a(或第二端板21b)上的开设位置与所述中间加强板24在所述容置空间中的位置相对应。As shown in FIG. 6 , in the embodiment of this specification, the intermediate reinforcing plate 24 is provided with a stepped structure 241 , and the stepped structure 241 is provided at one end of the intermediate reinforcing plate 24 close to the first end plate 21 a and close to the first end plate 21 a . One end of the two end plates 21b; both the first end plate 21a and the second end plate 21b are provided with a snap groove 211, the snap groove 211 is matched with the stepped structure 241, the first end The plate 21 a , the second end plate 21 b and the middle reinforcing plate 24 are connected through the stepped structure 241 and the engaging groove 211 . Here, the matching between the snap groove 211 and the stepped structure 241 means that the depth, width and length of the snap groove 211 match the three-dimensional size of the stepped structure 241 . ; The number of the snap grooves 211 matches the number of the middle reinforcing plates 24; in addition, the The opening position corresponds to the position of the middle reinforcing plate 24 in the accommodating space.
优选地，本实施例中，通过台阶结构24与卡接槽211实现所述中间加强板24与所述第一端板21a以及第二端板21b的插接连接后，还通过焊接的方式将所述台阶结构24与所述第一端板21a以及所述第二端板21b连成一体，以使得所述模组框架结构20稳固连接。Preferably, in this embodiment, after the intermediate reinforcing plate 24 is connected to the first end plate 21a and the second end plate 21b by means of the stepped structure 24 and the clamping groove 211, the intermediate reinforcing plate 24 is also welded to the first end plate 21a and the second end plate 21b. The stepped structure 24 is integrally connected with the first end plate 21a and the second end plate 21b, so that the module frame structure 20 is firmly connected.
需要说明的是，所述卡接槽211的深度与所述台阶结构241相匹配，所述卡接槽211可以是开设在第一端板21a内侧(第二端板21b的内侧)，也可以是贯穿所述第一端板21a(第二端板21b)的通槽。It should be noted that the depth of the engaging groove 211 matches the stepped structure 241 , and the engaging groove 211 may be opened on the inner side of the first end plate 21 a (the inner side of the second end plate 21 b ), or it may be It is a through groove which penetrates the said 1st end plate 21a (2nd end plate 21b).
如图7所示，所述第一端板21a靠近所述中间加强板24的一侧以及所述第二端板21b靠近所述中间加强板24的一侧均设有凹陷结构212，所述凹陷结构 212与所述卡接槽211间隔设置，所述凹陷结构212与所述电芯单元10相对。由于所述电芯单元10在充放电循环过程中会产生膨胀，所述凹陷结构212能够预留出供所述电芯单元10热膨胀所需的空间。As shown in FIG. 7 , a side of the first end plate 21 a close to the middle reinforcing plate 24 and a side of the second end plate 21 b close to the middle reinforcing plate 24 are provided with recessed structures 212 . The recessed structure 212 is spaced apart from the engaging groove 211 , and the recessed structure 212 is opposite to the battery cell unit 10 . Since the cell unit 10 may expand during the charge-discharge cycle, the recessed structure 212 can reserve a space required for thermal expansion of the cell unit 10 .
本说明书实施例提供的电池模组中，所述模组框架结构20还包括上固定板25和下固定板26，如图1至图3以及图6所示，所述上固定板25位于所述电芯单元10的一侧，所述上固定板25的四条侧边与所述第一端板21a、前盖板22、第二端板21b和所述后盖板23相连接，所述下固定板26位于所述电芯单元10远离所述上固定板25的一侧，所述下固定板26的四条侧边分别与所述第一端板21a、前盖板22、第二端板21b和所述后盖板23相连接。即所述上固定板25和所述下固定板26分别与各单体电池101的两个邻接面贴合连接。In the battery module provided in the embodiment of this specification, the module frame structure 20 further includes an upper fixing plate 25 and a lower fixing plate 26. As shown in FIG. 1 to FIG. 3 and FIG. 6 , the upper fixing plate 25 is located at the On one side of the cell unit 10, the four sides of the upper fixing plate 25 are connected to the first end plate 21a, the front cover plate 22, the second end plate 21b and the rear cover plate 23. The lower fixing plate 26 is located on the side of the cell unit 10 away from the upper fixing plate 25 . The plate 21b is connected to the rear cover plate 23 . That is, the upper fixing plate 25 and the lower fixing plate 26 are respectively attached and connected to the two adjoining surfaces of each unit cell 101 .
所述上固定板25包括上固定板本体和第一翻边251，所述第一翻边251位于所述上固定板本体的两侧，所述第一翻边251向所述下固定板26的方向延伸，所述第一翻边251用于与所述第一端板21a和所述第二端板21b相连接；所述下固定板26包括固定板本体和第二翻边261，所述第二翻边261位于所述下固定板本体的两侧，所述第二翻边261向所述上固定板25的方向延伸，所述第二翻边261用于与所述第一端板21a以及所述第二端板21b相连接；所述第一翻边251和所述第二翻边261能够分别提高所述上固定板25和所述下固定板26的结构强度，并且还能够提高所述模组框架结构20的连接强度。The upper fixing plate 25 includes an upper fixing plate body and a first flange 251 , the first flanges 251 are located on both sides of the upper fixing plate body, and the first flanges 251 face the lower fixing plate 26 . The first flange 251 is used to connect with the first end plate 21a and the second end plate 21b; the lower fixing plate 26 includes a fixing plate body and a second flange 261, so The second flanges 261 are located on both sides of the lower fixing plate body, the second flanges 261 extend toward the direction of the upper fixing plate 25, and the second flanges 261 are used for connecting with the first end The plate 21a and the second end plate 21b are connected; the first flange 251 and the second flange 261 can improve the structural strength of the upper fixing plate 25 and the lower fixing plate 26 respectively, and also The connection strength of the module frame structure 20 can be improved.
本说明书实施例中，所述上固定板25的表面还设有加强筋252，以提高所述上固定板25的结构强度。In the embodiment of this specification, the surface of the upper fixing plate 25 is further provided with reinforcing ribs 252 to improve the structural strength of the upper fixing plate 25 .
本说明书实施例中，所述电芯单元10中，各单体电池101的顶面朝向所述前盖板22或朝向所述后盖板23，各单体电池101的邻接面朝向所述上固定板24或所述下固定板26，各单体电池101朝向所述第一端板21a或第二端板21b，且相邻两个单体电池101的贴合面相贴合。In the embodiment of this specification, in the battery cell 10 , the top surface of each single cell 101 faces the front cover 22 or the rear cover 23 , and the adjoining surface of each single cell 101 faces the upper The fixing plate 24 or the lower fixing plate 26, each unit cell 101 faces the first end plate 21a or the second end plate 21b, and the bonding surfaces of two adjacent unit cells 101 are attached to each other.
优选地，所述电芯单元10中的各单体电池101的正极极耳和负极极耳的排布方向一致，例如，同一电芯单元10中，各所述单体电池101的正极极耳101a均靠近所述上固定板25设置，各所述单体电池101的负极极耳101b靠近所述下固定板26设置，从而有利于堆叠排放在模组框架结构内后串并联排线连接。当然，所述正极极耳101a、负极极耳101b的朝向可以是与上述方向相反，并且，不同的电芯单元10中的极耳朝向可以不同。Preferably, the arrangement directions of the positive electrode tabs and the negative electrode tabs of the single cells 101 in the cell unit 10 are the same. For example, in the same cell unit 10, the positive electrode tabs of the single cells 101 101a are arranged close to the upper fixing plate 25, and the negative tabs 101b of the single cells 101 are arranged close to the lower fixing plate 26, which facilitates series-parallel cable connection after being stacked and arranged in the module frame structure. Of course, the directions of the positive electrode tabs 101a and the negative electrode tabs 101b may be opposite to the above directions, and the directions of the tabs in different cell units 10 may be different.
在一些实施例中，所述冷却结构30还可以包括第二冷却板32和第三冷却板33，所述第二冷却板32设置在所述电芯单元10与所述上固定板25之间，所述第三冷却板33设置在所述电芯单元10与所述下固定板26之间。需要说明的是，所述第二冷却板32和所述第三冷却板33的尺寸足够大，以与各个电芯单元10充分接触，以实现对电芯单元10的温度调节。In some embodiments, the cooling structure 30 may further include a second cooling plate 32 and a third cooling plate 33 , and the second cooling plate 32 is disposed between the battery cell unit 10 and the upper fixing plate 25 , the third cooling plate 33 is disposed between the cell unit 10 and the lower fixing plate 26 . It should be noted that the size of the second cooling plate 32 and the third cooling plate 33 is large enough to be in sufficient contact with each cell unit 10 to achieve temperature adjustment of the cell unit 10 .
所述第一冷却板31、第二冷却板32和所述第三冷却板33之间通过冷却液流通管道相连通。The first cooling plate 31 , the second cooling plate 32 and the third cooling plate 33 are communicated with each other through cooling liquid circulation pipes.
由于本说明书实施例中，所述第二冷却板32设置在所述电芯单元10与所述上固定板25之间，因此，受自身重力作用，所述第二冷却板32能够与各电芯单元10中单体电池的邻接面相贴合；所述第三冷却板33设置在所述电芯单元10与所述下固定板26之间，所述下固定板26能够承托所述第三冷却板33，并将所述第三冷却板33与各电芯单元10中单体电池的另一个邻接面相贴合；并且所述第一冷却板31设置在相邻的电芯单元10之间，即第一冷却板31与电芯单元中各单体电池101的底面贴合，或通过中间加强板24与各单体电池的底面贴合，则各单体电池101能够从底面和两个邻接面接受冷却结构30的冷却降温作用，提高电芯单元10温度管理效率。Since in the embodiment of this specification, the second cooling plate 32 is disposed between the battery cell unit 10 and the upper fixing plate 25, therefore, under the action of its own gravity, the second cooling plate 32 can The adjoining surfaces of the single cells in the core unit 10 are attached to each other; the third cooling plate 33 is arranged between the battery core unit 10 and the lower fixing plate 26 , and the lower fixing plate 26 can support the first cooling plate 26 . Three cooling plates 33 , and the third cooling plate 33 is attached to the other adjacent surface of the single battery in each cell unit 10 ; and the first cooling plate 31 is arranged between the adjacent cell units 10 . time, that is, the first cooling plate 31 is attached to the bottom surface of each single cell 101 in the cell unit, or the intermediate reinforcing plate 24 is attached to the bottom surface of each single cell, then each single cell 101 can be connected from the bottom surface to the two Each of the adjacent surfaces receives the cooling effect of the cooling structure 30 to improve the temperature management efficiency of the cell unit 10 .
为进一步加强冷却结构30对各电芯单元10的温度管理的效率，所述电芯单元10与第一冷却板31之间涂胶处理，所述电芯单元10与所述第二冷却板32以及所述电芯单元10与所述第三冷却板33之间也均涂胶处理。由于所述电芯单元10与所述第一冷却板31之间还可能设置有中间加强板24，则此时将所述电芯单元10与所述中间加强板24之间、所述中间加强板24与所述第一冷却板31之间进行涂胶处理。In order to further enhance the efficiency of the temperature management of each cell unit 10 by the cooling structure 30 , glue is applied between the cell unit 10 and the first cooling plate 31 , and the cell unit 10 and the second cooling plate 32 are glued. Also, glue is applied between the cell unit 10 and the third cooling plate 33 . Since an intermediate reinforcing plate 24 may be disposed between the cell unit 10 and the first cooling plate 31 , at this time, between the cell unit 10 and the intermediate reinforcing plate 24 , the intermediate reinforcing plate 24 is reinforced. A glue coating process is performed between the plate 24 and the first cooling plate 31 .
本说明书实施例提供的电池模组还包括汇流排50，所述汇流排50包括电池模组汇流排51和电芯单元汇流排52，所述电芯单元汇流排52用于将各电芯单元相连接并形成一个整体，所述电池模组汇流排51用于将由各所述电芯单元10连成的整体与正负极座70相连接。The battery module provided in the embodiment of the present specification further includes a bus bar 50, the bus bar 50 includes a battery module bus bar 51 and a cell unit bus bar 52, and the cell unit bus bar 52 is used to connect each cell unit Connected to form a whole, the battery module bus bar 51 is used to connect the whole formed by the battery cells 10 to the positive and negative bases 70 .
具体地，所述电芯单元10中的各所述单体电池101通过集成在线束隔离单元40中的柔性电路板实现串并联，且每个所述电芯单元10最终输出为一个正极和一个负极。所述电芯单元汇流排52将所述电芯单元10相连最终实现将所述电池模组输出为一个正极和一个负极。所述电池模组汇流排51包括电池模组 正极汇流排和电池模组负极汇流排，所述电池模组正极汇流排和电池模组负极汇流排分别将所述电池模组输出的正极和负极引出，以便实现多个电池模组之间的串并联连接。例如：所述电芯单元汇流排52的一端与第一个电芯单元10的正极相连，所述电芯单元汇流排52的另一端与第二个电芯单元10的负极连接；所述电池模组正极汇流排的一端与第一个电芯单元10的负极相连，另一端与正负极座70的正极端子相连；所述电池模组负极汇流排的一端与第二个电芯单元10的正极相连，电池模组负极汇流排另一端与正负极座70的负极端子相连；即实现了将具有两个电芯单元10，且两个电芯单元10相串联的情况。对于具有3个及3个以上电芯单元10的电池模组，通过2个或2个以上数量的电芯单元汇流排52实现电芯单元10彼此之间的串并联即可。Specifically, each of the single cells 101 in the cell unit 10 realizes series-parallel connection through the flexible circuit board integrated in the wire harness isolation unit 40, and each cell unit 10 finally outputs a positive electrode and a negative electrode. The battery cell unit bus bar 52 connects the battery cell units 10 to finally realize the output of the battery module as a positive electrode and a negative electrode. The battery module bus bar 51 includes a battery module positive electrode bus bar and a battery module negative electrode bus bar, and the battery module positive electrode bus bar and the battery module negative electrode bus bar respectively connect the positive and negative electrodes output by the battery module. lead out, so as to realize the series-parallel connection between multiple battery modules. For example: one end of the cell unit bus bar 52 is connected to the positive electrode of the first cell unit 10, and the other end of the cell unit bus bar 52 is connected to the negative electrode of the second cell unit 10; the battery One end of the positive bus bar of the module is connected to the negative electrode of the first cell unit 10, and the other end is connected to the positive terminal of the positive and negative electrode base 70; one end of the negative bus bar of the battery module is connected to the second cell unit 10. The positive pole of the battery module is connected to the positive pole of the battery module, and the other end of the negative pole busbar of the battery module is connected to the negative pole terminal of the positive and negative pole seat 70; For a battery module with three or more battery cells 10 , the battery cells 10 can be connected in series and parallel to each other through two or more battery cell unit bus bars 52 .
如图4所示，本说明书实施例中，所述正负极座70设置在所述上固定板25靠近所述第一端板21a的一侧。As shown in FIG. 4 , in the embodiment of the present specification, the positive and negative electrode holders 70 are disposed on the side of the upper fixing plate 25 close to the first end plate 21 a.
具体地，如图7所示，所述正负极座70包括托板和锁紧板，所述托板与所述锁紧板通过连接件锁紧连接，所述托板上设有正极槽和负极槽，所述正极槽用于与所述电池模组正极汇流排相连，所述负极槽用于与所述电池模组负极汇流排相连接。所述第一端板21a靠近所述上固定板25的一侧设有第一开孔213，所述上固定板25靠近所述第一端板21a的一端设有第二开孔253，所述第二开孔253与所述第一开孔213相匹配，所述电池模组正极汇流排与所述正极槽相连的一端设有第三开孔，连接件依次穿过所述第三开孔、正极槽处的开孔、第二开孔和第一开孔将所述电池模组正极汇流排、托板、上固定板25和所述第一端板21a稳固连接，所述电池模组正极汇流排的一端夹持在托板正极槽与锁紧板之间形成正负极座70的正极端子。所述电池模组负极汇流排与所述负极槽相连的一端设有第四开孔，连接件依次穿过所述第四开孔、负极槽处的开孔、第二开孔253和第一开孔213将所述电池模组负极汇流排、托板、上固定板25和所述第一端板21a稳固连接，所述电池模组负极汇流排的一端夹持在托板正极槽与锁紧板之间形成正负极座70的负极端子。所述正负极座70稳固连接在所述模组框架结构20上，多个电池模组之间通过各自的正负极座70即可实现彼此之间的串并联连接。当然了，本说明书实施例中，所述正负极座70所采用的连接方式和与模组框架结构之间的相对位置关系仅为示例性的，所述正负极座70还可以采取其他的连接方式，例如，将所述正负极座70设置在所述上固定板 25靠近所述第二端板21b的一端，或将所述正负极座70设置在所述第一端板21a远离中间加强板24的一侧等等。Specifically, as shown in FIG. 7 , the positive and negative bases 70 include a support plate and a locking plate, the support plate and the locking plate are locked and connected by connecting pieces, and a positive electrode groove is provided on the support plate and a negative electrode groove, the positive electrode groove is used for connecting with the positive busbar of the battery module, and the negative electrode groove is used for connecting with the negative electrode busbar of the battery module. The side of the first end plate 21a close to the upper fixing plate 25 is provided with a first opening 213, and the end of the upper fixing plate 25 close to the first end plate 21a is provided with a second opening 253, so The second opening 253 is matched with the first opening 213, and the end of the positive bus bar of the battery module that is connected to the positive electrode slot is provided with a third opening, and the connecting piece passes through the third opening in sequence. The hole, the opening at the positive electrode slot, the second opening and the first opening firmly connect the battery module positive bus bar, the support plate, the upper fixing plate 25 and the first end plate 21a, and the battery module One end of the set of positive bus bars is clamped between the positive groove of the support plate and the locking plate to form the positive terminal of the positive and negative base 70 . A fourth opening is formed at one end of the negative electrode busbar of the battery module connected to the negative electrode slot, and the connecting piece passes through the fourth opening, the opening at the negative electrode slot, the second opening 253 and the first opening in sequence. The opening 213 firmly connects the negative bus bar of the battery module, the supporting plate, the upper fixing plate 25 and the first end plate 21a, and one end of the negative bus bar of the battery module is clamped in the positive groove of the supporting plate and the lock. The negative terminals of the positive and negative bases 70 are formed between the tight plates. The positive and negative bases 70 are stably connected to the module frame structure 20 , and a series-parallel connection between a plurality of battery modules can be achieved through the respective positive and negative bases 70 . Of course, in the embodiment of the present specification, the connection method adopted by the positive and negative electrode holders 70 and the relative positional relationship with the module frame structure are only exemplary, and the positive and negative electrode holders 70 may also adopt other For example, set the positive and negative pole seat 70 on the end of the upper fixing plate 25 close to the second end plate 21b, or set the positive and negative pole socket 70 on the first end plate 21a is away from the side of the intermediate reinforcing plate 24 and so on.
所述第一端板21a靠近所述下固定板26的一侧和所述第二端板21b靠近所述下固定板26的一侧还设置有连接结构，所述连接结构用于实现所述电池模组的组装。The side of the first end plate 21a close to the lower fixing plate 26 and the side of the second end plate 21b close to the lower fixing plate 26 are also provided with connection structures, and the connection structures are used to realize the Assembly of battery modules.
本说明书实施例中，所述电池模组还包括缓冲结构80，所述缓冲结构80设置在相邻两个所述单体电池101之间，所述缓冲结构80用于对所述电芯单元10充放电循环过程中的产生的热膨胀起到缓冲作用，避免热膨胀中的各单体电池互相挤压造成的电池损坏，有利于提高电池使用寿命。In the embodiment of this specification, the battery module further includes a buffer structure 80 , the buffer structure 80 is disposed between two adjacent single cells 101 , and the buffer structure 80 is used for the battery cell unit. 10. The thermal expansion generated during the charge-discharge cycle acts as a buffer to avoid battery damage caused by the extrusion of each single battery in the thermal expansion process, which is beneficial to improve battery service life.
需要说明的是，所述缓冲结构80可以与单体电池101间隔设置；也可以如图1所示设置，每两个单体电池101形成一对，所述缓冲结构80位于单体电池对之间。并且，为体现所述缓冲结构80的设置位置，图1中的各缓冲结构80突出于所述单体电池101显示，在实际使用中，为实现单体电池与第二冷却板32以及单体电池与所述第三冷却板33之间的良好接触，所述缓冲结构80与各单体电池101的邻接面相齐平。It should be noted that the buffer structure 80 may be arranged at intervals from the unit cells 101 ; it may also be arranged as shown in FIG. 1 , each two unit cells 101 form a pair, and the buffer structure 80 is located between the pair of unit cells. between. In addition, in order to reflect the setting position of the buffer structure 80, each buffer structure 80 in FIG. 1 is shown protruding from the single battery 101. In actual use, in order to realize the single battery and the second cooling plate 32 and the single battery For good contact between the battery and the third cooling plate 33 , the buffer structure 80 is flush with the adjoining surface of each unit cell 101 .
本说明书实施例还提供一种车辆，包括如上述技术方法所述的电池模组。Embodiments of the present specification further provide a vehicle, including the battery module described in the foregoing technical method.
本说明书实施例提供的一种电池模组，专为侧放(指电芯单元的极耳非朝上放置和非朝下放置)的电芯单元设置了模组框架结构，其中的中间加强板不仅能提高模组框架结构的结构强度，并提供了供电芯单元布置的容腔，使得电芯单元之间不会过度贴合，有利于避免电芯单元热膨胀造成的互相挤压；并且在此模组框架结构的基础上布置的冷却结构，能够提供给电芯单元有效的冷却制冷作用，实现了提供供冷却装置布置空间、供电芯热膨胀空间的同时提高了电池包的能量密度。并且，无需重复开发电芯，有利于降低电池模组成本。A battery module provided by the embodiments of this specification is specially provided with a module frame structure for the battery cell unit that is placed sideways (referring to the battery cell unit whose tabs are not placed upward or downward), wherein the middle reinforcing plate is provided with a module frame structure. It can not only improve the structural strength of the module frame structure, but also provide a cavity for the arrangement of the power supply core units, so that the battery core units will not be over-fitted, which is beneficial to avoid the mutual extrusion caused by the thermal expansion of the battery core units; and here The cooling structure arranged on the basis of the frame structure of the module can provide effective cooling and cooling effect for the battery cell unit, realize the provision of space for the arrangement of the cooling device and the thermal expansion space of the power supply core, and at the same time improve the energy density of the battery pack. In addition, there is no need to repeatedly develop batteries, which is beneficial to reduce the cost of battery modules.
本说明书实施例中，采用缓冲结构80与凹陷结构212相结合方式，提供给电芯单元80足够的热膨胀空间；并且还设置有为电芯单元中各单体电池提供冷却作用的冷却结构，以提供电池模组合适的工作温度环境，避免电池模组产热巨大造成局部过热或热失控；从而避免了由于单体电池热膨胀相互挤压造成的单体电池破损、单体电池内导电液渗漏风险，及避免了电芯单元热膨胀对模组框架结构造成的挤压，避免了模组框架结构散架的风险，有利于延长电池模组使用寿命。In the embodiment of this specification, the combination of the buffer structure 80 and the recessed structure 212 is adopted to provide sufficient thermal expansion space for the cell unit 80; Provide a suitable working temperature environment for the battery module to avoid local overheating or thermal runaway caused by the huge heat generation of the battery module; thus avoiding the damage of the single battery and the leakage of the conductive liquid in the single battery caused by the thermal expansion of the single battery. Risk, and avoid the extrusion of the module frame structure caused by the thermal expansion of the battery cell unit, avoid the risk of the module frame structure falling apart, and help prolong the service life of the battery module.
以上所述仅为本发明的较佳实施例，并不用以限制本发明，对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and does not deviate from the spirit of the present invention or With the essential features, the present invention can be implemented in other specific forms. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (17)

  1. 一种电池模组，其特征在于，包括电芯单元(10)和模组框架结构(20)，所述电芯单元(10)设置在所述模组框架结构(20)内；A battery module, characterized in that it comprises a cell unit (10) and a module frame structure (20), and the cell unit (10) is arranged in the module frame structure (20);
    所述模组框架结构(20)包括第一端板(21a)、第二端板(21b)、前盖板(22)、后盖板(23)和至少一个中间加强板(24)，所述第一端板(21a)、前盖板(22)、第二端板(21b)和所述后盖板(23)围合形成容置空间，每个所述中间加强板(24)连接所述第一端板(21a)和所述第二端板(21b)，所述中间加强板(24)将所述容置空间分为至少两个成列排布的容腔；The module frame structure (20) includes a first end plate (21a), a second end plate (21b), a front cover plate (22), a rear cover plate (23) and at least one middle reinforcing plate (24), so that the The first end plate (21a), the front cover plate (22), the second end plate (21b) and the rear cover plate (23) are enclosed to form an accommodating space, and each of the middle reinforcing plates (24) is connected the first end plate (21a) and the second end plate (21b), and the middle reinforcing plate (24) divides the accommodating space into at least two accommodating cavities arranged in a row;
    每个所述容腔内对应设置一个所述电芯单元(10)，每个所述电芯单元(10)包括至少两个由第一端板(21a)向第二端板(21b)排列设置的单体电池(101)，每个所述电芯单元(10)中所有所述单体电池(101)的极耳朝向相同，所述单体电池(101)的极耳朝向所述前盖板(22)或所述后盖板(23)。One of the cell units (10) is correspondingly disposed in each of the cavities, and each of the cell units (10) includes at least two cells arranged from the first end plate (21a) to the second end plate (21b). In the set single battery (101), the tabs of all the single cells (101) in each battery cell (10) face the same direction, and the tabs of the single battery (101) face the front The cover plate (22) or the rear cover plate (23).
  2. 根据权利要求1所述的一种电池模组，其特征在于，还包括冷却结构(30)，所述冷却结构(30)设置在所述模组框架结构(20)内，所述冷却结构(30)包括第一冷却板(31)，所述第一冷却板(31)位于相邻两个所述电芯单元(10)之间。The battery module according to claim 1, further comprising a cooling structure (30), wherein the cooling structure (30) is arranged in the module frame structure (20), and the cooling structure ( 30) Comprising a first cooling plate (31), the first cooling plate (31) is located between two adjacent battery cells (10).
  3. 根据权利要求2所述的一种电池模组，其特征在于，所述极耳设置在所述单体电池(101)的顶面上，所述极耳包括正极极耳(101a)和负极极耳(101b)，所述正极极耳(101a)和所述负极极耳(101b)沿所述顶面的长度方向排布；每个所述单体电池(101)还包括两个贴合面，两个所述贴合面分别与所述顶面的两条长边相连接，相邻的两个所述单体电池(101)通过所述贴合面贴合连接。A battery module according to claim 2, characterized in that, the tabs are arranged on the top surface of the single battery (101), and the tabs include a positive tab (101a) and a negative electrode The tabs (101b), the positive tabs (101a) and the negative tabs (101b) are arranged along the length direction of the top surface; each of the single cells (101) further includes two bonding surfaces , the two bonding surfaces are respectively connected with the two long sides of the top surface, and the two adjacent single cells (101) are bonded and connected through the bonding surfaces.
  4. 根据权利要求3所述的一种电池模组，其特征在于，还包括线束隔离单元(40)，所述线束隔离单元(40)设置在所述电芯单元(10)与所述前盖板(22)之间和/或所述电芯单元(10)与所述后盖板(23)之间和/或所述电芯单元(10)与所述中间加强板(24)之间，所述线束隔离单元(40)上集成有柔性电路板(42)，所述柔性电路板(42)与所述正极极耳和所述负极极耳相连接。The battery module according to claim 3, further comprising a wire harness isolation unit (40), wherein the wire harness isolation unit (40) is disposed between the battery cell unit (10) and the front cover plate (22) and/or between the cell unit (10) and the rear cover plate (23) and/or between the cell unit (10) and the middle reinforcing plate (24), A flexible circuit board (42) is integrated on the wire harness isolation unit (40), and the flexible circuit board (42) is connected to the positive electrode tab and the negative electrode tab.
  5. 根据权利要求4所述的一种电池模组，其特征在于，所述线束隔离单元(40)上还集成有电芯汇流排(41)，所述正极极耳和所述负极极耳分别与所述电芯汇流排(41)焊接使得所述电芯单元(10)与所述线束隔离单元(40)固定相连。The battery module according to claim 4, wherein the wire harness isolation unit (40) is further integrated with a battery busbar (41), and the positive electrode tab and the negative electrode tab are respectively connected to The cell bus bar (41) is welded so that the cell unit (10) is fixedly connected with the wire harness isolation unit (40).
  6. 根据权利要求4所述的一种电池模组，其特征在于，所述线束隔离单元(40)上设有与所述正极极耳(101a)相匹配的正极通孔，所述正极通孔用于供所述正极极耳(101a)穿过；所述线束隔离单元(40)上还设有与所述负极极耳(101b)相匹配的负极通孔，所述负极通孔用于供所述负极极耳(101b)穿过。The battery module according to claim 4, wherein the wire harness isolation unit (40) is provided with a positive electrode through hole matching the positive electrode tab (101a), and the positive electrode through hole is used for for the positive electrode tab (101a) to pass through; the wire harness isolation unit (40) is also provided with a negative electrode through hole matching the negative electrode tab (101b), and the negative electrode through hole is used for all the The negative electrode tab (101b) passes through.
  7. 根据权利要求4所述的一种电池模组，其特征在于，还包括采集处理器(60)，所述采集处理器(60)用于监测所述电芯单元(10)，所述电芯单元(10)与所述采集处理器(60)通过所述柔性电路板相连接。The battery module according to claim 4, further comprising a collection processor (60), wherein the collection processor (60) is used for monitoring the battery cell unit (10), the battery cell The unit (10) is connected with the acquisition processor (60) through the flexible circuit board.
  8. 根据权利要求1所述的一种电池模组，其特征在于，所述中间加强板(24)设有台阶结构(241)，所述台阶结构(241)设置在所述中间加强板(24)靠近所述第一端板(21a)的一端和靠近所述第二端板(21b)的一端；所述第一端板(21a)和所述第二端板(21b)均设有卡接槽(211)，所述卡接槽(211)与所述台阶结构(241)相匹配，所述第一端板(21a)与所述中间加强板(24)、所述第二端板(21b)与所述中间加强板(24)均通过所述台阶结构(241)和所述卡接槽(211)相连接。The battery module according to claim 1, characterized in that, the intermediate reinforcing plate (24) is provided with a stepped structure (241), and the stepped structure (241) is disposed on the intermediate reinforcing plate (24) One end close to the first end plate (21a) and one end close to the second end plate (21b); both the first end plate (21a) and the second end plate (21b) are provided with snap connections a groove (211), the snap groove (211) is matched with the stepped structure (241), the first end plate (21a) is connected to the middle reinforcing plate (24) and the second end plate ( 21b) and the middle reinforcing plate (24) are both connected through the stepped structure (241) and the snap groove (211).
  9. 根据权利要求8任意一项所述的一种电池模组，其特征在于，所述第一端板(21a)靠近所述中间加强板(24)的一侧和所述第二端板(21b)靠近所述中间加强板(24)的一侧均设有凹陷结构(212)，所述凹陷结构(212)与所述卡接槽(211)间隔设置，所述凹陷结构(212)与所述电芯单元(10)相对。The battery module according to any one of claims 8, wherein the first end plate (21a) is close to the side of the middle reinforcing plate (24) and the second end plate (21b) ) a side close to the middle reinforcing plate (24) is provided with a concave structure (212), the concave structure (212) and the snap groove (211) are spaced apart, and the concave structure (212) is connected to the The battery cell units (10) are opposite to each other.
  10. 根据权利要求2所述的一种电池模组，其特征在于，所述模组框架结构(20)还包括上固定板(25)和下固定板(26)，所述上固定板(25)位于所述电芯单元(10)的一侧，所述上固定板(25)的四条侧边分别与所述第一端板(21a)、前盖板(22)、第二端板(21b)和所述后盖板(23)相连接，所述下固定板(26)位于所述电芯单元(10)远离所述上固定板(25)的一侧，所述下固定板(26)的四条侧边分别与所述第一端板(21a)、前盖板(22)、第二端板(21b)和所述后盖板(23)相连接。The battery module according to claim 2, wherein the module frame structure (20) further comprises an upper fixing plate (25) and a lower fixing plate (26), and the upper fixing plate (25) Located on one side of the cell unit (10), the four sides of the upper fixing plate (25) are respectively connected with the first end plate (21a), the front cover plate (22), and the second end plate (21b) ) is connected to the rear cover plate (23), the lower fixing plate (26) is located on the side of the cell unit (10) away from the upper fixing plate (25), the lower fixing plate (26) ) are respectively connected with the first end plate (21a), the front cover plate (22), the second end plate (21b) and the rear cover plate (23).
  11. 根据权利要求10所述的一种电池模组，其特征在于，所述上固定板(25)包括上固定板本体和第一翻边(251)，所述第一翻边(251)位于所述上固定板本体的两侧，所述第一翻边(251)向所述下固定板(26)的方向延伸；所述下固定板(26)包括下固定板本体和第二翻边(261)，所述第二翻边(261)位于所述下固定板本体的两侧，所述第二翻边(261)向所述上固定板(25)的方向延伸。The battery module according to claim 10, wherein the upper fixing plate (25) comprises an upper fixing plate body and a first flange (251), and the first flange (251) is located at the On both sides of the upper fixing plate body, the first flange (251) extends in the direction of the lower fixing plate (26); the lower fixing plate (26) includes a lower fixing plate body and a second flange (251). 261), the second flanges (261) are located on both sides of the lower fixing plate body, and the second flanges (261) extend in the direction of the upper fixing plate (25).
  12. 根据权利要求10所述的一种电池模组，其特征在于，所述上固定板(25)的表面设有加强筋(252)。The battery module according to claim 10, wherein a reinforcing rib (252) is provided on the surface of the upper fixing plate (25).
  13. 根据权利要求10所述的一种电池模组，其特征在于，所述冷却结构(30)还包括第二冷却板(32)和第三冷却板(33)，所述第二冷却板(32)设置在所述电芯单元(10)与所述上固定板(25)之间，所述第三冷却板(33)设置在所述电芯单元(10)与所述下固定板(26)之间，所述第一冷却板(31)、第二冷却板(32)和所述第三冷却板(33)通过冷却液流通管道相连通。The battery module according to claim 10, wherein the cooling structure (30) further comprises a second cooling plate (32) and a third cooling plate (33), the second cooling plate (32) ) is arranged between the battery cell unit (10) and the upper fixing plate (25), and the third cooling plate (33) is arranged between the battery core unit (10) and the lower fixing plate (26). ), the first cooling plate (31), the second cooling plate (32) and the third cooling plate (33) are communicated with each other through cooling liquid circulation pipes.
  14. 根据权利要求13所述的一种电池模组，其特征在于，所述电芯单元(10)与所述第一冷却板(31)之间、所述电芯单元(10)与所述第二冷却板(32)之间以及所述电芯单元(10)与所述第三冷却板(33)之间均涂胶处理，所述中间加强板(24)与所述第一冷却板(31)之间以及所述中间加强板(24)与所述电芯单元(10)之间均涂胶处理。The battery module according to claim 13, characterized in that, between the battery cell unit (10) and the first cooling plate (31), and between the battery core unit (10) and the first cooling plate (31) Glue is applied between the two cooling plates (32) and between the cell unit (10) and the third cooling plate (33), and the middle reinforcing plate (24) and the first cooling plate ( 31) and between the middle reinforcing plate (24) and the battery cell unit (10) are coated with glue.
  15. 根据权利要求13所述的一种电池模组，其特征在于，还包括汇流排(50)，所述汇流排(50)包括电池模组汇流排(51)和电芯单元汇流排(52)，所述电芯单元汇流排(52)用于将各所述电芯单元(10)连接形成一个整体，所述电池模组汇流排(51)用于将由各所述电芯单元连成的整体与正负极座(70)相连接。The battery module according to claim 13, further comprising a busbar (50), the busbar (50) comprising a battery module busbar (51) and a cell unit busbar (52) , the battery cell unit busbar (52) is used to connect the battery cell units (10) to form a whole, and the battery module busbar (51) is used to connect the battery cell units The whole is connected to the positive and negative pole seat (70).
  16. 根据权利要求2所述的一种电池模组，其特征在于，还包括缓冲结构(80)，所述缓冲结构(80)设置在相邻两个所述单体电池(101)之间。The battery module according to claim 2, further comprising a buffer structure (80), wherein the buffer structure (80) is disposed between two adjacent single cells (101).
  17. 一种车辆，其特征在于，包括如权利要求1至16任意一项所述的电池模组。A vehicle, characterized by comprising the battery module according to any one of claims 1 to 16.
PCT/CN2020/101708 2020-07-13 2020-07-13 Battery module and vehicle WO2022011513A1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114709547A (en) * 2022-01-27 2022-07-05 浙江锋锂新能源科技有限公司 Lithium metal negative electrode solid-state battery module
CN115117540A (en) * 2022-06-27 2022-09-27 楚能新能源股份有限公司 Pack box structure
CN115312983A (en) * 2022-02-22 2022-11-08 上海奥威科技开发有限公司 Energy storage module and energy storage bag thereof
CN115377622A (en) * 2022-08-09 2022-11-22 合肥国轩高科动力能源有限公司 Utmost point ear series connection module is piled to electricity core
CN115882155A (en) * 2023-03-08 2023-03-31 广汽埃安新能源汽车股份有限公司 Wiring harness isolation plate and battery pack thereof
CN116093514A (en) * 2023-03-31 2023-05-09 乌海市君泽科技有限公司 Lithium battery pack protection and adjustment device
CN116454468A (en) * 2023-06-16 2023-07-18 深圳海辰储能控制技术有限公司 Battery module and energy storage device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102347509A (en) * 2010-07-29 2012-02-08 日立车辆能源株式会社 Electric storage module and electric storage device
CN102782896A (en) * 2010-05-11 2012-11-14 宝马股份公司 Energy storage module comprising several prismatic storage cells and method for producing an energy storage module
CN103000836A (en) * 2011-09-15 2013-03-27 三星Sdi株式会社 Battery module
DE102012211653A1 (en) * 2012-07-04 2014-05-22 Bayerische Motoren Werke Aktiengesellschaft Energy storage module for power supply device used in motor car, has insulation film whose sides are bonded with adjacent memory cells respectively, and that is arranged parallel to end plate
CN106356484A (en) * 2016-10-19 2017-01-25 沃太能源南通有限公司 Split mounting type power battery system structure
CN107946503A (en) * 2016-10-13 2018-04-20 三星Sdi株式会社 Battery module carrier and battery system
CN207896164U (en) * 2018-03-14 2018-09-21 宁德时代新能源科技股份有限公司 Battery modules and battery pack
CN109817855A (en) * 2017-11-21 2019-05-28 福特全球技术公司 Battery assembly end plate and the method fixed using end plate progress battery assembly
CN211350784U (en) * 2020-03-30 2020-08-25 蜂巢能源科技有限公司 Battery module and battery pack

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102782896A (en) * 2010-05-11 2012-11-14 宝马股份公司 Energy storage module comprising several prismatic storage cells and method for producing an energy storage module
CN102347509A (en) * 2010-07-29 2012-02-08 日立车辆能源株式会社 Electric storage module and electric storage device
CN103000836A (en) * 2011-09-15 2013-03-27 三星Sdi株式会社 Battery module
DE102012211653A1 (en) * 2012-07-04 2014-05-22 Bayerische Motoren Werke Aktiengesellschaft Energy storage module for power supply device used in motor car, has insulation film whose sides are bonded with adjacent memory cells respectively, and that is arranged parallel to end plate
CN107946503A (en) * 2016-10-13 2018-04-20 三星Sdi株式会社 Battery module carrier and battery system
CN106356484A (en) * 2016-10-19 2017-01-25 沃太能源南通有限公司 Split mounting type power battery system structure
CN109817855A (en) * 2017-11-21 2019-05-28 福特全球技术公司 Battery assembly end plate and the method fixed using end plate progress battery assembly
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CN115882155A (en) * 2023-03-08 2023-03-31 广汽埃安新能源汽车股份有限公司 Wiring harness isolation plate and battery pack thereof
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