WO2021098538A1 - 电池框架、电池模组、电池包和电池模组的组装方法 - Google Patents

电池框架、电池模组、电池包和电池模组的组装方法 Download PDF

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Publication number
WO2021098538A1
WO2021098538A1 PCT/CN2020/127371 CN2020127371W WO2021098538A1 WO 2021098538 A1 WO2021098538 A1 WO 2021098538A1 CN 2020127371 W CN2020127371 W CN 2020127371W WO 2021098538 A1 WO2021098538 A1 WO 2021098538A1
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WO
WIPO (PCT)
Prior art keywords
frame
battery
side plate
battery module
along
Prior art date
Application number
PCT/CN2020/127371
Other languages
English (en)
French (fr)
Inventor
汪用广
王鹏
李盛林
游凯杰
唐彧
Original Assignee
宁德时代新能源科技股份有限公司
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 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to JP2022526275A priority Critical patent/JP7416932B2/ja
Priority to KR1020227015494A priority patent/KR20220078674A/ko
Priority to EP20890907.7A priority patent/EP3934016B1/en
Publication of WO2021098538A1 publication Critical patent/WO2021098538A1/zh
Priority to US17/552,343 priority patent/US11936059B2/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/658Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/211Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289Mountings; 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
    • H01M50/291Mountings; 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 characterised by their shape
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289Mountings; 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
    • H01M50/293Mountings; 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 characterised by the material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Definitions

  • This application relates to the field of battery technology, in particular to a method for assembling a battery frame, a battery module, a battery pack, and a battery module.
  • the battery frame In the battery module, the battery frame is used to house the battery module.
  • the battery frame In the related art, the battery frame is generally non-foldable, and the form is relatively simple, and the application is limited.
  • a technical problem to be solved by this application is to enrich the diversity of the battery framework.
  • the battery frame provided by the present application includes at least two frames, the frame includes a support plate and a side plate, the side plate is connected to the periphery of the support plate and includes a first side plate and a first side plate arranged opposite to each other in a first direction.
  • Two side plates, the first direction is parallel to the plane where the pallet is located, the aforementioned at least two frames are connected in sequence along the first direction, and among the at least two frames, any adjacent two frames are rotatably connected , So that the battery frame has an unfolded state and a folded state.
  • the unfolded state at least two frames are arranged side by side along the first direction.
  • the at least two frames are stacked in a second direction, and the second direction is perpendicular to the support.
  • the battery frame includes at least three frames, and among any adjacent three frames, the middle frame is folded in opposite directions relative to the two frames on both sides.
  • the frame located in the middle and the frame located on the first side of the intermediate frame are rotatably connected by the first rotating structure, and the frame located in the middle is connected with the frame located on the second side of the intermediate frame.
  • the first rotating structure and the second rotating structure are located at both ends of the frame along the second direction, so that the middle frame is folded in opposite directions relative to the two frames on both sides.
  • the first rotating structure is located at an end of the side plate away from the pallet along the second direction, and the second rotating structure is located at an end of the side plate near the pallet along the third direction.
  • the first rotating structure includes a first rotating shaft, a first connecting groove and two first connecting holes.
  • the first rotating shaft is disposed on the second side plate of the frame on the first side.
  • the first connecting groove and two The first connecting holes are all provided on the first side plate of the middle frame, and the two first connecting holes are located at both ends of the first side plate of the middle frame along the third direction, and the first connecting groove is along the third direction.
  • the third direction is perpendicular to the first direction and the second direction, and the first rotating shaft is inserted into the first connecting groove and the two first connecting holes; and/or,
  • the second rotating structure includes a second rotating shaft, a second connecting groove and two second connecting holes.
  • the second rotating shaft is arranged on the second side plate of the middle frame.
  • the second connecting groove and the two second connecting holes are both arranged on the On the first side plate of the frame on the second side, two second connecting holes are located at both ends of the first side plate of the frame on the second side along the third direction.
  • the third direction is perpendicular to the first direction and the second direction, and the second rotating shaft is inserted into the second connecting groove and the two second connecting holes.
  • a locking structure is provided between any two adjacent frames, and the locking structure is used to lock the two adjacent frames when the battery frame is in a folded state.
  • the locking structure includes a locking structure, and the locking structure includes a slot and a buckle.
  • the slot and the buckle are respectively provided on two adjacent frames, and when the battery frame is in a folded state, the buckle Snap with the card slot.
  • the frame is further provided with a hollow part, and the hollow part is used to cooperate with the electrical connection piece of the battery module.
  • the hollow part includes a first hollow part and a second hollow part.
  • the first hollow part is located on the side plate and penetrates the side plate along the thickness direction of the side plate
  • the second hollow part is located on the pallet and runs along the side plate. The thickness direction of the pallet penetrates the pallet.
  • the two frames on both sides of the middle frame have the same structure.
  • the frame is made of insulating material; and/or, the frame is made of insulating material.
  • a battery module which includes an electrical connection piece and a battery module with a battery, and also includes the battery frame of the present application, the battery frame is in a folded state, and each frame of the battery frame is provided with
  • the electrical connection piece is electrically connected to the tabs of different batteries in the battery module
  • the electrical connection piece includes a first bending portion and a second bending portion connected to each other, one of the first bending portion and the second bending portion There are angles between them and they are located in two adjacent frames.
  • the electrical connection piece is located at the hollow part of the battery frame.
  • a groove is provided between the first bending portion and the second bending portion, and the groove is matched with the first rotating shaft or the second rotating shaft of the battery frame.
  • the tabs are located on one side of the battery along the third direction, and the third direction is perpendicular to the first direction and the second direction, or the tabs of the battery are located on both sides of the battery along the first direction.
  • the battery module includes two batteries, the two batteries are arranged along the third direction, and the battery tabs are located between the two batteries; or, the battery module includes one battery, and the battery tabs are located on the battery. Along the sides of the first direction.
  • a battery pack which includes a box body, and further includes the battery module of the present application, and the battery module is arranged in the box body.
  • Another aspect of the present application also provides a method for assembling a battery module, which includes:
  • the two adjacent frames are relatively rotated to transform the battery frame from the unfolded state to the folded state.
  • the electrical connection piece when used to electrically connect the tabs of different batteries, the electrical connection piece is placed on the first rotation shaft or the second rotation shaft of the battery frame, and when the two adjacent frames are relatively rotated, The first bending part and the second bending part of the electrical connecting piece are relatively bent under the action of the first rotating shaft or the second rotating shaft.
  • the present application provides a foldable battery frame, which can effectively increase the types of battery frames and enrich the diversity of battery frames.
  • this foldable battery frame can be used in conjunction with a bendable electrical connection piece, which effectively simplifies the assembly process of battery modules.
  • FIG. 1 shows a schematic diagram of the overall structure of a battery frame according to an embodiment of the present application
  • Figure 2 shows a schematic diagram of the structure of one of the two adjacent frames
  • Figure 3 shows a schematic diagram of the structure of the other of the two adjacent frames
  • Fig. 4 shows a partial enlarged schematic diagram of A in Fig. 1;
  • Fig. 5 shows a partial enlarged schematic diagram of B in Fig. 1;
  • Fig. 6 shows a partial enlarged schematic diagram of C in Fig. 1;
  • FIG. 7 shows a partial enlarged schematic diagram of D in FIG. 1;
  • FIG. 8 shows a schematic diagram of an exploded structure of a battery module according to an embodiment of the present application.
  • FIG. 9 shows a schematic diagram of the welding state of the electrical connecting piece in FIG. 8.
  • FIG. 10 shows the folding process of the battery module shown in FIG. 8;
  • FIG. 11 shows a schematic diagram of the state when the battery module shown in FIG. 8 is folded but not locked
  • Fig. 12 shows a partial enlarged schematic diagram of E in Fig. 11;
  • FIG. 13 shows a schematic diagram of the state when the battery module shown in FIG. 8 is folded and locked
  • FIG. 14 shows a schematic structural diagram of a battery module according to another embodiment of the present application.
  • FIG. 15 shows a schematic diagram of the combination of the battery module and the frame in FIG. 14;
  • Fig. 16 shows the folding process of the battery module shown in Fig. 14.
  • Support plate 12.
  • the first bending part 302.
  • the second bending part 303. Groove;
  • orientation words such as “front, back, up, down, left, right", “horizontal, vertical, vertical, horizontal” and “top, bottom” and other directions indicate the orientation Or positional relationship is usually based on the positional or positional relationship shown in the drawings, which is only used to facilitate the description of the application and simplify the description. Unless otherwise stated, these positional words do not indicate or imply the pointed device or element It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the scope of protection of the present application; the orientation word “inside, outside” refers to the inside and outside relative to the contour of each component itself.
  • FIGS 1-16 show the battery frame 100 and the battery module 10 of the present application.
  • each direction is defined using the coordinate system in FIG. 1, where the coordinate axis L represents the first direction, which is the first side plate 121 and the second side plate of the frame 1.
  • the relative arrangement direction of 122 is also the arrangement direction of each frame 1 when the battery frame 100 is in the unfolded state. It is parallel to the plane where the pallet 11 of the frame 1 is located, and is also the arrangement direction of the battery modules 200 in the battery module 10.
  • the coordinate axis H represents the second direction, which is perpendicular to the plane where the pallet 11 of the frame 1 is located, in other words, it is perpendicular to the first direction L, and the second direction H is also the battery
  • the coordinate axis W represents the third direction, which is perpendicular to the coordinate axis L and the coordinate axis H, that is, it is perpendicular to the first direction L and the second direction H, in other words, it is perpendicular to the first direction L is parallel to the plane where the pallet 11 is located, and this direction is also the width direction of the battery module 10 at the same time.
  • the battery module 10 includes a battery module 200, an electrical connection piece 300, a battery frame 100, etc., and the battery module 200 and the electrical connection piece 300 are both disposed in the battery frame 100.
  • the battery module 200 is a core component of the battery module 10, which includes a battery 201 for generating electrical energy.
  • the number of batteries 201 in the battery module 200 is not limited, and it may include one, two or more batteries 201.
  • the battery module 200 may include two batteries 201, and the two batteries 201 may be arranged along the third direction W.
  • the battery module 200 may also include only one battery 201.
  • the battery 201 is electrically connected to the outside through the tab 201a.
  • the tab 201a includes a positive tab and a negative tab, which correspond to the positive and negative electrodes of the battery 201, respectively.
  • the arrangement of the tab 201a can be varied. For example, it can be seen from FIG. 8 that in some embodiments, the tab 201a may be located at one end of the battery 201 along the third direction W, and in the case where the battery module 200 includes two batteries 201 arranged along the third direction W
  • the tabs 201 of the two batteries 201 can be arranged in opposite directions. At this time, the tabs 201a of the battery 201 are located between the two batteries 201, which facilitates the connection of all the batteries 201 by using fewer electrical connecting pieces 300.
  • the tabs 201a may also be located on both sides of the battery 201 along the first direction L.
  • the tab 201a can be located in the middle of the battery module 200 along the third direction W to make the structure more symmetrical.
  • the battery 201 is a soft pack battery.
  • the soft-pack battery is a kind of battery that is different from the hard-shell battery. Its outer shell is no longer made of aluminum alloy or stainless steel and other hard shells, but uses aluminum-plastic film and other polymer shells. It has lighter weight, smaller thickness and better safety performance. Higher advantages, but at the same time it also has disadvantages such as softer hardness and weaker strength.
  • the number of the battery module 200 in the battery module 10 may be more than one, for example, it may be two or more (multiple means at least three). ).
  • the battery module 10 includes a plurality of battery modules 200. And, in order to reduce space occupation, the plurality of battery modules 200 may be stacked into a group.
  • the batteries 201 in the battery module 200 and between different battery modules 200 are electrically connected by the electrical connection piece 300.
  • the electrical connection piece 300 also called Busbar or busbar, is used to electrically connect the tabs 201a of different batteries 201 to realize the series, parallel or hybrid connection of the batteries 201 in the battery module 10.
  • the electrical connection piece 300 not only are electrical connecting pieces 300 provided between the tabs 201a of different batteries 201 in the same battery module 200, but also between the tabs 201a of different battery modules 200.
  • the electrical connection piece 300 that is, the electrical connection piece 300 not only connects the tabs 201a of different batteries 201 in the same battery module 200, but also connects the tabs 201a between different battery modules 200.
  • FIGS. 14-16 since there is only one battery 201 in the same battery module 200, only the electrical connection piece 300 is provided between the tabs 201a of different battery modules 200, that is, the electrical connection piece 300 only connects the tabs 201a of different battery modules 200.
  • the electrical connection lug 300 can be welded with the lug 301 to achieve electrical connection to different batteries 201.
  • the shaded part of FIG. 9 shows the welding area of the electrical connection piece 300. Since the tab 201a is located in the middle of the battery module 200 along the third direction W as described above, the electrical connection piece 300 is also located in the middle of the battery module 200 along the third direction W after welding.
  • the electrical connection piece 300 is bendable. Specifically, the electrical connection piece 300 includes a first bending portion 301 and a second bending portion 302, and the first bending portion 301 and the second bending portion 302 are bendably connected. Based on this, by bending the first bending portion 301 and the second bending portion 302 relatively, the electrical connection piece 300 can be bent, which facilitates the folding of different battery modules 200 in the battery module 10 into groups, and reduces Space occupation, increase energy density, increase flexibility of use, and expand application scope.
  • the electrical connection piece 300 is bent as the battery frame 100 is folded. When the battery frame 100 is in the folded state, the first bending portion 301 and the second bending portion 302 have an angle and are located in two adjacent frames 1 respectively. in.
  • a groove 303 is further provided between the first bending portion 301 and the second bending portion 302, and the groove 303 is a U-shaped groove.
  • the advantage of providing the groove 303 is that it facilitates the bending of the electrical connection sheet 300 under the action of the battery frame 100, which will be described in more detail later in conjunction with the structure of the battery frame 100.
  • the battery frame 100 is used for accommodating all the battery modules 200 of the battery module 10, and protects and supports each battery module 200 to increase the strength.
  • the battery frame 100 includes a frame 1, and the frame 1 includes a supporting plate 11 and a side plate 12, and the side plate 12 is connected to the periphery of the supporting plate 11, so that the frame 1 has a cavity for accommodating the battery module 200 and having an open top.
  • the shape of the frame 1 is adapted to the shape of the battery module 200, and is a rectangular parallelepiped.
  • the supporting plate 11 is used as a bottom plate, which is opposite to the open end of the frame 1, and is used to support the battery.
  • the side plate 12 includes a first side plate 121, a second side plate 122, a third side plate 123 and a fourth side plate 124, the first side plate 121 and the second side plate 122 are connected to the pallet 11 On both sides of the first direction L, the third side plate 123 and the fourth side plate 124 are connected to the two sides of the pallet 11 along the third direction W.
  • the shape of the frame 1 is not limited to a rectangle, for example, it may also be a circle or other shapes, which may be specifically set according to the shape of the battery module 200.
  • one or more of glue, double-sided tape, or a buckle structure may be provided on the pallet 11 to realize the fixation of the battery module 200 in the frame 1.
  • the number of frames 1 is the same as the number of battery modules 200, and each frame 1 is provided with one battery module 200, so that each battery module 200 can be supported and protected by a separate frame 1 respectively, and the strength is improved more effectively. Since the battery module 10 may include at least two battery modules 200, the battery frame 100 may also include at least two frames 1 accordingly. Specifically, in the illustrated embodiment, if the number of battery modules 200 is multiple, the number of frames 1 is also multiple.
  • the battery frame 100 is configured to be foldable. As shown in FIGS. 1-10, all the frames 1 of the battery frame 100 are sequentially connected along the first direction L, and any two adjacent frames 1 are rotatably connected. In this way, by rotating the adjacent frames 1 relative to each other, the battery frame 100 can be folded, so that the battery frame 100 is converted from the unfolded state to the folded state, thereby driving the battery module 200 and the electrical connection sheet 300 to fold into a group to realize the battery Folding of module 10.
  • all the frames 1 of the battery frame 100 are arranged side by side along the first direction L; when in the folded state, all the frames 1 of the battery frame 100 are stacked along the second direction H.
  • the battery frame 100 when the battery frame 100 includes a plurality of frames 1, the plurality of frames 1 can be rotatably connected two by two, and in any three adjacent frames 1, the middle frame 1 is opposite to the two frames 1.
  • the folding directions of the two frames 1 on the side are opposite. Based on this, the battery frame 100 can be folded in an S shape, which facilitates the folding of the battery module 10 more smoothly.
  • any three adjacent frames 1, located in the middle along the first direction W The frame 1 and the frame 1 located on the first side of the intermediate frame 1 and the frame 1 located on the second side of the intermediate frame 1 can be rotatably connected by the first rotating structure 13 and the second rotating structure 14, and the first rotating structure 13 and the first rotating structure 13
  • the two rotating structures 14 are located at both ends of the frame 1 along the second direction H. Specifically, as shown in FIGS.
  • the first side plate 121 of the middle frame 1 and the second side plate 122 of the first side frame 1 are rotatably connected by the first rotating structure 13, and at the same time, the first side plate of the middle frame 1
  • the two side plates 122 and the first side plate 121 of the second side frame 1 are rotatably connected by the second rotating structure 14, and in the second direction H, the first rotating structure 13 is located at the upper end of the side plate 12 (ie, side The end of the plate 12 away from the supporting plate 11), and the second rotating structure 14 is located at the lower end of the side plate 12 (that is, the end of the side plate 12 close to the supporting plate 11). In this way, as shown in FIG.
  • the middle frame 1 when it needs to be folded into a group, the middle frame 1 can be folded upward relative to the first side frame 1, and folded down relative to the second side frame 1, so as to realize the arrow shown in Fig. 10 S-shaped folding method.
  • the first rotating structure 13 can also be located at the lower end of the frame 1
  • the second rotating structure 14 can be located at the upper end of the frame 1. In this case, the required S-shaped folding manner can also be realized.
  • first rotating structure 13 and the second rotating structure 14 may adopt a variety of structural forms, for example, they may be hinges (or hinges), or may also be shaft-hole matching structures. Specifically, as shown in FIGS. 1-7, in some embodiments, the first rotating structure 13 and the second rotating structure 14 may both adopt a shaft-hole matching structure to simplify the structure and facilitate processing.
  • the first rotating structure 13 includes a first rotating part and a second rotating part that are rotatably matched, and the first rotating part is disposed on the side plate 12 of the first side frame 1.
  • the upper part (specifically arranged on the upper end of the second side plate 122 of the first side frame 1) and includes a first rotating shaft 131.
  • the second rotating part is arranged on the side plate 12 of the middle frame 1 (specifically arranged on the first side plate of the middle frame 1).
  • the upper end of the side plate 121) and includes a first connecting groove 132 and two first connecting holes 133a.
  • the two first connecting holes 133a are located on the side plate 12 of the middle frame 1 (specifically, the first side plate 121 of the middle frame 1).
  • the first connecting groove 132 is located between the two first connecting holes 133a along the third direction W, and the first rotating shaft 131 is inserted into the first connecting groove 132 and the two first connecting holes 133a in.
  • the first rotating shaft 131 is rotatably fitted with the first connecting groove 132 and the two first connecting holes 133a, so that under the action of the first rotating structure 13, the middle frame 1 can rotate relative to the first side frame 1. To achieve the folding between the two.
  • the second rotating structure 14 includes a third rotating part and a fourth rotating part.
  • the third rotating part is arranged on the side plate 12 of the middle frame 1 (specifically arranged in the middle
  • the lower end of the second side plate 122 of the frame 1) and includes a second rotating shaft 141
  • the fourth rotating part is arranged on the side plate 12 of the second side frame 1 (specifically arranged on the first side plate 121 of the second side frame 1).
  • the two second connecting holes 143a are located on the side plate 12 of the second side frame 1 (specifically, the first side plate 121 of the second side frame 1) Along both ends of the third direction W, the second connecting groove 142 is located between the two second connecting holes 143a along the third direction W, and the second rotating shaft 141 is inserted into the second connecting groove 142 and the two second connecting holes 143a . Based on this, the second rotating shaft 141 is rotatably fitted with the second connecting groove 142 and the two second connecting holes 143a, so that under the action of the second rotating structure 14, the middle frame 1 can rotate relative to the second side frame 1. To achieve the folding between the two.
  • the first connecting groove 132 and/or the second connecting groove 142 may be a U-shaped groove to facilitate the first rotating shaft 131 and/or the second rotating shaft 142 to be placed in the corresponding connecting groove Rotate and cooperate with the corresponding connecting groove.
  • the first connection groove 132 and/or the second connection groove 142 may be specifically located in the middle of the frame 1 along the third direction W.
  • the electrical The connecting piece 300 is also located in the middle of the frame 1 along the third direction W.
  • the electric connecting piece 300 corresponds to the position of the first connecting groove 132 or the second connecting groove 142, and the groove 303 on the electric connecting piece 300 can be aligned with the position of the first connecting groove 132 or the second connecting groove 142.
  • the first connecting groove 132 or the second connecting groove 142 cooperates to limit the first shaft 131 or the second shaft 141, especially when the groove 303, the first connecting groove 132 and the second connecting groove 142 are all U-shaped grooves,
  • the groove 303 can be buckled with the first connecting groove 132 or the second connecting groove 142, and the limiting effect is better.
  • the first rotating shaft 131 or the second rotating shaft 141 can pass through the groove 303 to The electrical connection piece 300 transmits torque and drives the electrical connection piece 300 to bend.
  • the groove 303 is provided on the upper surface of the electrical connecting piece 300 to better match with the first rotating shaft 131 located at the upper end of the frame 1.
  • the groove 303 of the electrical connecting piece 300 located at the second rotating shaft 141 can be provided on the lower surface of the electrical connecting piece 300 to better fit with the second rotating shaft 141 located at the lower end of the frame 1.
  • both ends of the side plate 12 of the middle frame 1 (specifically the first side plate 121 of the middle frame 1) along the third direction W are equal
  • a first ear plate 133 is provided, and the first connecting hole 133 a is provided on the first ear plate 133.
  • the two side plates 12 of the second side frame 1 (specifically, the first side plate 121 of the second side frame 1) along the third direction W Both ends are provided with a second ear plate 143, and the second connecting hole 143 a is provided on the second ear plate 143.
  • the first ear plate 133 and the second ear plate 143 are both circular ear plates, and the side plate 12 and the second ear plate 12 of the first shaft 131 are provided with The position corresponding to the one ear plate 133 and the position corresponding to the second ear plate 143 of the side plate 12 provided with the second rotating shaft 141 are also provided with arc-shaped grooves.
  • the arc-shaped grooves form a retreat to the circular ear plate to prevent Interference facilitates the relative rotation of adjacent frames 1 more smoothly.
  • the frame 1 is further provided with a hollow portion 15, and the hollow portion 15 is used to cooperate with the electrical connection piece 300 of the battery module 10.
  • the electrical connection piece 300 is located at the hollow portion 15.
  • This aspect can provide space for the bending of the electrical connection piece 300 and facilitate electrical connection
  • the smooth realization of the bending process of the sheet 300 on the other hand, it can also reserve space for the welding tools and welding operations of the electrical connection sheet 300, which facilitates the completion of the welding process of the electrical connection sheet 300, and improves the assembly efficiency of the battery module 10.
  • the electrical connection piece 300 can be exposed outside the frame 1 after being folded into a group, so as to facilitate voltage sampling of the electrical connection piece 300 and the like.
  • a PCB board Printed Circuit Board
  • an FPC board Flexible Printed Circuit Board
  • the hollow portion 15 may include a first hollow portion 151 and a second hollow portion 152 communicating with each other.
  • the first hollow portion 151 is located on the side plate 12 and penetrates the side plate along the thickness direction of the side plate 12.
  • the second hollow portion 152 is located on the support board 11 and penetrates the support board 11 along the thickness direction of the support board 11.
  • the hollow portion 15 is L-shaped, and the electrical connection piece 300 can be fully avoided in both the flat state and the folded state.
  • the thickness direction of the side plate 12 refers to the dimension of the side plate 12 in the first direction L
  • the rearward direction of the pallet 11 refers to the dimension of the pallet 11 in the second direction H.
  • the hollow part 15 is located in the middle of the frame 1 along the third direction W, which is compatible with the feature that the electrical connecting piece 300 is located in the middle of the frame 1 along the third direction W, so that the hollow part 15 is convenient to avoid being located in the frame 1 along the third direction.
  • the electrical connection piece 300 in the middle of the W.
  • the first connection groove 132 and the second connection groove 142 are also located in the middle of the frame 1 along the third direction W, and the hollow portion 15 is in the third direction W with the first connection groove 132 and the second connection groove 142.
  • the position on W is corresponding, and the hollow portion 15 at the first connecting groove 132 is located below the first connecting groove 132, and the hollow portion 15 at the second connecting groove 142 is located above the second connecting groove 142.
  • the frame 1 is provided with hollow portions 15 on opposite sides along the first direction L.
  • the first side plate 121 and the second side plate 122 are both provided with first hollow portions.
  • the two ends of the pallet 11 along the first direction W are correspondingly provided with second hollow portions 152, which is convenient for the two electrical connection pieces 300 located on both sides of the frame 1 along the first direction L. avoid.
  • each battery module 200 is placed in the corresponding frame 1, and the electrical connection piece 300 is placed in place for welding.
  • the electrical connection piece 300 is used to realize the electrical connection of the tabs 201a of the different batteries 201, so that the battery module 200, the electrical connection piece 300 and the battery frame 100 are integrated.
  • the battery frame 100 is folded in an S shape, and the battery frame 100 is transformed from the unfolded state to the folded state, and the assembly of the battery module 10 is realized.
  • the placement, welding and folding here can be automatically operated by automated production equipment, and the production efficiency is high.
  • the electrical connection piece 300 is specifically placed at the rotation shaft of the battery frame 100 (that is, the first rotation shaft 131 and the second rotation shaft 141), so as to make the first bending portion 301 of the electrical connection piece 300 during the process of folding the battery frame 100
  • the second bending portion 302 and the second bending portion 302 are relatively bent under the action of the rotating shaft, so that the electrical connection sheet 300 can be automatically bent as the battery frame 100 is folded, which further simplifies the assembly process of the battery module 10.
  • a locking structure 16 may be provided between any two adjacent frames 1.
  • the locking structure 16 is used to lock two adjacent frames 1 in the folded state.
  • the locking structure 16 may include an engaging structure 161.
  • the engaging groove 161a and the engaging buckle 161b of the engaging structure 161 are respectively provided on two adjacent frames 1, so that when the battery frame When 100 is folded in place, the buckle 161b can be inserted into the groove 161a, so that the adjacent frames 1 are buckled and locked together, so that the battery frame 100 can be more reliably maintained in the folded state and prevent it from being accidentally scattered.
  • the two frames 1 located on both sides of the middle frame 1 can adopt the same structure to simplify the structure and facilitate the realization of the modularization of the battery frame 100 , Reduce production costs and improve production efficiency.
  • the frame 1 in the battery frame 100 is divided into two types.
  • the lower end of 121 is provided with a fourth rotating part (specifically, the second connecting hole 143a and the second connecting groove 142), and the upper end of the second side plate 122 is provided with a first rotating part (specifically, the first rotating shaft 131).
  • the upper end of the first side plate 121 is provided with a second rotating part (specifically, the first connecting hole 133a and the first connecting hole 133a) that cooperates with the first rotating part.
  • the battery frame 100 includes the frame unit 1a, and the frame unit 1a includes the frame unit 1a along the first direction.
  • the first frame and the second frame are arranged side by side, the second side plate 122 of the first frame and the first side plate 121 of the second frame 121 are matched by the first rotating part and the second rotating part (the first rotating structure 13 ) Rotational connection, and when the number of frame units 1a is more than two, adjacent frame units 1a are rotationally connected by the cooperation of the third rotating part and the fourth rotating part (the second rotating structure 14), that is, the first
  • the frame and the second frame are arranged alternately and rotatably connected to each other, so that the battery frame 100 can be folded according to an S-shaped trajectory. In this case, only the first frame and the second frame need to be produced. Therefore, the design and production costs are lower, the degree of modularity is higher, the assembly is simpler and more convenient, and it is convenient for automated production and has higher production efficiency. higher.
  • both the first frame and the second frame are provided with a hollow portion 15, and the hollow portion 15 is located not only on the first side plate 121 but also on the second side plate 122; at the same time,
  • the third side plate 123 and the fourth side plate 124 of the first frame are provided with a slot 161a, and the third side plate 123 and the fourth side plate 124 of the second frame are respectively provided with a buckle 161b, and the first frame Both ends of the third side plate 123 and the fourth side plate 124 of the one frame along the second direction H are provided with grooves 161a, and the third side plate 123 and the fourth side plate 124 of the second frame are along the second Both ends of the direction H are provided with buckles 161b, so that it is convenient for the second frame (or the first frame) to be buckledly connected to the two adjacent first frames (or the second frame) on both sides of the second frame (or the first frame) to realize the folding state Lock tight.
  • the buckle 161b is L-shaped.
  • the positions of the buckle 161b and the groove 161a can be interchanged, that is, the buckle 161b may be provided on the first frame, and the groove 161a may be provided on the second frame.
  • the battery module 10 of the present application After the battery module 10 of the present application is folded, it can be placed in the box of the battery pack.
  • the battery frame 100 can be glued to the inner wall of the box, or the battery frame 100 can also be provided with hooks (such as hanging ears), etc., so that the battery frame 100 can be hooked Hang on the inner wall of the box.
  • the battery frame 100 may be made of insulating material, so that the different battery modules 200 in the battery module 10 are insulated from each other, and the battery module 10 is insulated from the box, which is beneficial to reduce battery packs. And the number of insulating sheets in the battery module 10 simplifies the structure and reduces the cost.
  • the battery frame 100 can be made of a heat insulating material to reduce the thermal diffusion of the battery 201.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

一种电池框架(100)、电池模组(10)、电池包和电池模组(10)的组装方法。所述电池框架(100),包括至少两个框架(1),这至少两个框架(1)沿着第一方向依次连接,且在这至少两个框架(1)中,任意相邻的两个框架(1)之间可转动地连接,使得电池框架(100)可折叠。由于电池框架(100)可折叠,因此,能够有效丰富电池框架(100)的多样性。

Description

电池框架、电池模组、电池包和电池模组的组装方法
相关申请的交叉引用
本申请要求享有于2019年11月19日提交的名称为“电池框架、电池模组、电池包和电池模组的组装方法”的中国专利申请201911134930.5的优先权,该申请的全部内容通过引用并入本申请中。
技术领域
本申请涉及电池技术领域,特别是涉及一种电池框架、电池模组、电池包和电池模组的组装方法。
背景技术
在电池模组中,电池框架用于容置电池模块。相关技术中,电池框架一般为不可折叠的,形式较为单一,应用受到限制。
发明内容
本申请所要解决的一个技术问题为:丰富电池框架的多样性。
为了实现上述目的,本申请所提供的电池框架,包括至少两个框架,框架包括托板和侧板,侧板连接于托板的四周并包括沿第一方向相对布置的第一侧板和第二侧板,第一方向平行于托板所在的平面,前述至少两个框架沿着第一方向依次连接,且在这至少两个框架中,任意相邻的两个框架之间可转动地连接,使得电池框架具有展开状态和折叠状态,处于展开状态时,至少两个框架沿着第一方向并排布置,处于折叠状态时,至少两个框架沿着第二方向堆叠,第二方向垂直于托板所在的平面。
在一些实施例中,电池框架包括至少三个框架,在任意相邻的三个框架中,中间的框架相对于两侧的两个框架向相反方向折叠。
在一些实施例中,在任意相邻的三个框架中,位于中间的框架与位于中间框架第一侧的框架通过第一转动结构转动连接,位于中间的框架与位于中间框架第二侧的框架通过第二转动结构转动连接,第一转动结构和第二转动结构沿着第二方向位于框架的两端,以使中间的框架相对于两侧的两个框架向相反方向折叠。
在一些实施例中,第一转动结构沿着第二方向位于侧板的远离托板的一端,第 二转动结构沿着第三方向位于侧板的靠近托板的一端。
在一些实施例中,第一转动结构包括第一转轴、第一连接槽和两个第一连接孔,第一转轴设置在第一侧的框架的第二侧板上,第一连接槽和两个第一连接孔均设置在中间的框架的第一侧板上,两个第一连接孔位于中间的框架第一侧板的沿第三方向的两端,第一连接槽沿着第三方向位于两个第一连接孔之间,第三方向垂直于第一方向和第二方向,第一转轴***第一连接槽和两个第一连接孔中;和/或,
第二转动结构包括第二转轴、第二连接槽和两个第二连接孔,第二转轴设置在中间的框架的第二侧板上,第二连接槽和两个第二连接孔均设置在第二侧的框架的第一侧板上,两个第二连接孔位于第二侧的框架第一侧板的沿第三方向的两端,第二连接槽沿着第三方向位于两个第二连接孔之间,第三方向垂直于第一方向和第二方向,第二转轴***第二连接槽和两个第二连接孔中。
在一些实施例中,任意相邻的两个框架之间设有锁止结构,锁止结构用于在电池框架处于折叠状态时锁止相邻的两个框架。
在一些实施例中,锁止结构包括卡合结构,卡合结构包括卡槽和卡扣,卡槽和卡扣分别设置于相邻的两个框架上,且电池框架处于折叠状态时,卡扣与卡槽卡合。
在一些实施例中,框架上还设有镂空部,镂空部用于与电池模组的电连接片配合。
在一些实施例中,镂空部包括第一镂空部和第二镂空部,第一镂空部位于侧板上并沿着侧板的厚度方向贯穿侧板,第二镂空部位于托板上并沿着托板的厚度方向贯穿托板。
在一些实施例中,在任意相邻的三个框架中,位于中间框架两侧的两个框架结构相同。
在一些实施例中,框架采用绝缘材料制成;和/或,框架采用隔热材料制成。
本申请另一方面还包括一种电池模组,其包括电连接片和具有电池的电池模块,并且还包括本申请的电池框架,电池框架处于折叠状态,且电池框架的各框架中均设有电池模块,电连接片电连接电池模组中的不同电池的极耳,电连接片包括彼此连接的第一弯折部和第二弯折部,第一弯折部和第二弯折部之间具有角度并分别位于相邻的两个框架中。
在一些实施例中,电连接片位于电池框架的镂空部处。
在一些实施例中,第一弯折部和第二弯折部之间设有凹槽,凹槽与电池框架的第一转轴或第二转轴配合。
在一些实施例中,极耳位于电池的沿第三方向的一侧,第三方向垂直于第一方向和第二方向,或者,电池的极耳位于电池的沿第一方向的两侧。
在一些实施例中,电池模块包括两个电池,两个电池沿着第三方向排列,且电池的极耳位于两个电池之间;或者,电池模块包括一个电池,电池的极耳位于电池的沿着第一方向的两侧。
本申请又一方面还提供一种电池包,其包括箱体,且其还包括本申请的电池模组,电池模组设置于箱体中。
本申请再一方面还提供一种电池模组的组装方法,其包括:
在处于展开状态的电池框架的各框架中分别放入具有电池的电池模块;
用电连接片电连接不同电池的极耳;
使相邻的两个框架相对转动,将电池框架由展开状态转变为折叠状态。
一些实施例中,在用电连接片电连接不同电池的极耳时,将电连接片放于电池框架的第一转轴或第二转轴处,且在使相邻的两个框架相对转动时,使电连接片的第一弯折部和第二弯折部在第一转轴或第二转轴的作用下相对弯折。
本申请提供一种可折叠的电池框架,能够有效增加电池框架的种类,丰富电池框架的多样性。
尤其,这种可折叠的电池框架,能够与可弯折的电连接片配套使用,有效简化电池模组的成组过程。
通过以下参照附图对本申请的示例性实施例进行详细描述,本申请的其它特征及其优点将会变得清楚。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案,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地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1示出本申请一实施例的电池框架的整体结构示意图;
图2示出相邻两个框架中一个框架的结构示意图;
图3示出相邻两个框架中另一个框架的结构示意图;
图4示出图1中的A局部放大示意图;
图5示出图1中的B局部放大示意图;
图6示出图1中的C局部放大示意图;
图7示出图1中的D局部放大示意图;
图8示出本申请一实施例电池模组的***结构示意图;
图9示出图8中电连接片的焊接状态示意图;
图10示出图8所示电池模组的折叠过程;
图11示出图8所示电池模组被折叠但未被锁紧时的状态示意图;
图12示出图11中的E局部放大示意图;
图13示出图8所示电池模组被折叠并被锁紧时的状态示意图;
图14示出本申请另一实施例电池模组的结构示意图;
图15示出图14中电池模块与框架的组合示意图;
图16示出图14所示电池模组的折叠过程。
在附图中,附图并未按照实际的比例绘制。
标记说明:
10、电池模组;
100、电池框架;200、电池模块;300、电连接片;
1a、框架单元;
1、框架;
11、托板;12、侧板;121、第一侧板;122、第二侧板;123、第三侧板;124、第四侧板;13、第一转动结构;131、第一转轴;132、第一连接槽;133、第一耳板;133a、第一连接孔;14、第二转动结构;141、第二转轴;142、第二连接槽;143、第二耳板;143a、第二连接孔;15、镂空部;151、第一镂空部;152、第二镂空部;16、锁紧结构;161、卡合结构;161a、卡槽;161b、卡扣;
201、电池;201a、极耳;
301、第一弯折部;302、第二弯折部;303、凹槽;
L、第一方向;H、第二方向;W、第三方向。
具体实施方式
下面将结合本申请实施例中的附图,对本申请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申请一部分实施例,而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的,决不作为对本申请及其应用或使用的任何限制。基于本申请中的实施例,本领域普通技术人员在没有开展创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论,但在适当情况下,所述技术、方法和设备应当被视为授权说明书的一部分。
在本申请的描述中,需要理解的是,方位词如“前、后、上、下、左、右”、“横向、竖向、垂直、水平”和“顶、底”等所指示的方位或位置关系通常是基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,在未作相反说明的情况下,这些方位词并不指示和暗示所指的装置或元件必须具有特定的方位或者以特定的方位构造和操作,因此不能理解为对本申请保护范围的限制;方位词“内、外”是指相对于各部件本身的轮廓的内外。
在本申请的描述中,需要理解的是,使用“第一”、“第二”等词语来限定零部件,仅仅是为了便于对相应零部件进行区别,如没有另行声明,上述词语并没有特殊含义,因此不能理解为对本申请保护范围的限制。
此外,下面所描述的本申请不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
图1-16示出了本申请的电池框架100及电池模组10。
为了在接下来能够清楚地描述各方位,利用图1中的坐标系对各方 向进行了定义,其中,坐标轴L表示第一方向,其为框架1的第一侧板121和第二侧板122的相对布置方向,也为电池框架100处于展开状态时各框架1的排布方向,与框架1的托板11所在的平面平行,也是电池模组10中电池模块200的排布方向,同时还是电池模组10的长度方向;坐标轴H表示第二方向,其与框架1的托板11所在的平面垂直,换句话说,其垂直于第一方向L,同时该第二方向H也是电池模组10的高度方向;坐标轴W表示第三方向,其垂直于坐标轴L和坐标轴H,即其垂直于第一方向L和第二方向H,换句话说,其垂直于第一方向L并平行于托板11所在的平面,该方向同时也是电池模组10的宽度方向。
基于上述方位定义,接下来结合图1-16对本申请予以说明,且下面所采用的“上”、“下”、“顶”、“底”等表示方位或位置关系的名词,均相对于第二方向H而言。
参照图1-16可知,电池模组10包括电池模块200、电连接片300和电池框架100等,电池模块200和电连接片300均设置在电池框架100中。
其中,如图8-16所示,电池模块200为电池模组10的核心部件,其包括电池201,用于产生电能。电池模块200中电池201的数量不作限制,其可以包括一个、两个或多个电池201。例如,由图8所示,在一些实施例中,电池模块200可以包括两个电池201,且这两个电池201可以沿着第三方向W排列。再例如,如图14所示,在另一些实施例中,电池模块200也可以仅包括一个电池201。
电池201通过极耳201a与外界电连通。极耳201a包括正极耳和负极耳,分别与电池201的正极和负极相对应。极耳201a的布置方式可以多样。例如,由图8可知,在一些实施例中,极耳201a可以位于电池201的沿第三方向W的一端,并且,在电池模块200包括两个沿第三方向W排列的电池201的情况下,两个电池201的极耳201可以朝向相反的设置,此时,电池201的极耳201a位于两个电池201之间,便于利用较少的电连接片300实现所有电池201的连接。再例如,由图15可知,在另一些实施例中,极耳201a也可以位于电池201的沿第一方向L的两侧。并 且,极耳201a可以沿第三方向W位于电池模块200的中部,以使结构对称性更好。
另外,在图示实施例中,电池201为软包电池。软包电池是区别于硬壳电池的一种电池,其外壳不再采用铝合金或不锈钢等硬壳,而是采用铝塑膜等聚合物外壳,具有重量较轻、厚度较小及安全性能较高等优点,但同时也具有硬度较软、强度较弱等缺点。
为了提高电池模组10的充放电能力,如图8-16所示,电池模组10中电池模块200的数量可以多于1个,例如可以为2个或多个(多个即为至少三个)。具体在图示实施例中,电池模组10包括多个电池模块200。并且,为了减少空间占用,这多个电池模块200可以堆叠成组。
电池模块200中以及不同电池模块200之间的电池201通过电连接片300电连接。电连接片300,也称为Busbar或汇流件,用于电连接不同电池201的极耳201a,以实现电池模组10中各电池201的串联、并联或混联。具体地,在图8-15所示的实施例中,不仅同一电池模块200中不同电池201的极耳201a之间设有电连接片300,不同电池模块200的极耳201a之间也设有电连接片300,也即,电连接片300不仅连接同一电池模块200中不同电池201的极耳201a,还连接不同电池模块200间的极耳201a。而在图14-16所示的实施例中,由于同一电池模块200中仅具有一个电池201,因此,仅不同电池模块200的极耳201a之间设有电连接片300,即,电连接片300仅连接不同电池模块200的极耳201a。
电连接耳片300可以通过与极耳301焊接,来实现对不同电池201的电连接。图9的阴影部分示出了电连接片300的焊接区域。由于如前所述,极耳201a沿着第三方向W位于电池模块200的中部,因此,电连接片300焊接后也位于电池模块200的沿第三方向W的中部。
如图8-16所示,在本申请中,电连接片300为可弯折的。具体地,电连接片300包括第一弯折部301和第二弯折部302,该第一弯折部301和第二弯折部302可弯折地连接。基于此,通过使第一弯折部301和第二弯折部302相对弯折,即可实现电连接片300的弯折,方便电池模组10中不同电池模块200之间折叠成组,减少空间占用,增大能量密度,提 高使用灵活性,扩大应用范围。电连接片300随着电池框架100的折叠而弯折,电池框架100处于折叠状态时,第一弯折部301和第二弯折部302之间具有角度并分别位于相邻的两个框架1中。
并且,如图8所示,第一弯折部301和第二弯折部302之间还设有凹槽303,且该凹槽303为U型槽。设置该凹槽303的好处在于,便于电连接片300在电池框架100的作用下进行弯折,这一点将在后面结合电池框架100的结构进行更详细的说明。
电池框架100用于容置电池模组10的所有电池模块200,对各电池模块200进行保护和支撑,增加强度。电池框架100包括框架1,框架1包括托板11和侧板12,侧板12连接于托板11的四周,使得框架1具有用于容置电池模块200且顶部敞开的空腔。具体地,如图2-3所示,框架1的形状与电池模块200的形状相适应,呈长方体形,其中,托板11用作底板,其与框架1的敞开端相对,用于支撑电池模块200,而侧板12则包括第一侧板121、第二侧板122、第三侧板123和第四侧板124,第一侧板121和第二侧板122连接于托板11的沿第一方向L的两侧,第三侧板123和第四侧板124则连接于托板11的沿第三方向W的两侧。应当理解,框架1的形状不限于矩形,例如也可以为圆形或其他形状,具体可以根据电池模块200的形状设定。另外,可以在托板11上设置胶水、双面胶或卡扣结构等中的一种或多种,来实现电池模块200在框架1中的固定。
框架1的数量与电池模块200的数量相同,每个框架1中设有一个电池模块200,使得每个电池模块200可以分别由一个单独的框架1进行支撑和保护,更有效地提高强度。由于电池模组10可以包括至少两个电池模块200,因此,电池框架100也可以相应地包括至少两个框架1。具体在图示实施例中,电池模块200的数量为多个,则框架1的数量也为多个。
而为了方便电池模组200及电连接片300折叠成组,在本申请中,电池框架100被设置为可折叠的。如图1-10所示,电池框架100的所有框架1沿着第一方向L依次连接,且任意相邻的两个框架1之间可转动地连接。这样,通过使相邻框架1之间相对转动,即可实现电池框架100的 折叠,使得电池框架100由展开状态转换为折叠状态,进而带动电池模块200及电连接片300折叠成组,实现电池模组10的折叠。处于展开状态时,电池框架100的所有框架1沿这第一方向L并排布置;处于折叠状态时,电池框架100的所有框架1沿着第二方向H堆叠。
其中,如图10所示,当电池框架100包括多个框架1时,这多个框架1可以两两转动连接,并且,在任意相邻的三个框架1中,中间的框架1相对于两侧的两个框架1的折叠方向相反。基于此,电池框架100能够以S形进行折叠,这便于更加顺利地实现电池模组10的折叠。
而为了使中间框架1能够相对于两侧两个框架1向相反方向折叠,如图1-7及图10所示,在任意相邻的三个框架1中,沿着第一方向W位于中间的框架1与位于中间框架1第一侧的框架1及位于中间框架1第二侧的框架1可以分别通过第一转动结构13和第二转动结构14转动连接,且第一转动结构13和第二转动结构14沿着第二方向H位于框架1的两端。具体地,如图1-7所示,中间框架1的第一侧板121和第一侧框架1的第二侧板122之间通过第一转动结构13转动连接,同时,中间框架1的第二侧板122和第二侧框架1的第一侧板121之间通过第二转动结构14转动连接,并且,在第二方向H上,第一转动结构13位于侧板12的上端(即侧板12的远离托板11的一端),第二转动结构14位于侧板12的下端(即侧板12的靠近托板11的一端)。这样,如图10所示,在需要折叠成组时,中间框架1可以相对于第一侧框架1向上折叠,并相对于第二侧框架1向下折叠,从而实现如图10箭头所示的S形折叠方式。当然,作为变型,也可以第一转动结构13位于框架1的下端,而第二转动结构14位于框架1的上端,这种情况下,也可以实现所需要的S形折叠方式。
其中,第一转动结构13和第二转动结构14可以采用多种结构形式,例如,可以为合页(或称铰链),或者,也可以为轴孔配合结构。具体地,如图1-7所示,在一些实施例中,第一转动结构13和第二转动结构14可以均采用轴孔配合结构,以简化结构,方便加工。
其中,由图2、图3、图4和图6可知,第一转动结构13包括转动配合的第一转动部和第二转动部,第一转动部设置在第一侧框架1的侧板 12上(具体设置在第一侧框架1的第二侧板122的上端)并包括第一转轴131,第二转动部设置在中间框架1的侧板12上(具体设置在中间框架1的第一侧板121的上端)并包括第一连接槽132和两个第一连接孔133a,两个第一连接孔133a位于中间框架1侧板12(具体为中间框架1的第一侧板121)的沿第三方向W的两端,第一连接槽132沿着第三方向W位于两个第一连接孔133a之间,且第一转轴131***第一连接槽132和两个第一连接孔133a中。基于此,第一转轴131与第一连接槽132和两个第一连接孔133a可转动地配合,使得在第一转动结构13的作用下,中间框架1可以相对于第一侧框架1转动,实现二者之间的折叠。
而如图1-3及图5和图7所示,第二转动结构14包括第三转动部和第四转动部,第三转动部设置在中间框架1的侧板12上(具体设置在中间框架1的第二侧板122的下端)并包括第二转轴141,第四转动部设置在第二侧框架1的侧板12上(具体设置在第二侧框架1的第一侧板121的下端)并包括第二连接槽142和两个第二连接孔143a,两个第二连接孔143a位于第二侧框架1侧板12(具体为第二侧框架1的第一侧板121)的沿第三方向W的两端,第二连接槽142沿着第三方向W位于两个第二连接孔143a之间,第二转轴141***第二连接槽142和两个第二连接孔143a中。基于此,第二转轴141与第二连接槽142和两个第二连接孔143a可转动地配合,使得在第二转动结构14的作用下,中间框架1可以相对于第二侧框架1转动,实现二者之间的折叠。
其中,如图4和图5所示,第一连接槽132和/或第二连接槽142可以为U型槽,以方便第一转轴131和/或第二转轴142放入相应的连接槽中与相应的连接槽转动配合。同时,如图1-3所示,第一连接槽132和/或第二连接槽142具体可以位于框架1的沿着第三方向W的中部,这种情况下,由于如前所述,电连接片300也位于框架1的沿着第三方向W的中部,因此,电连接片300与第一连接槽132或第二连接槽142的位置相应,电连接片300上的凹槽303可以与第一连接槽132或第二连接槽142配合,对第一转轴131或第二转轴141进行限位,尤其凹槽303、第一连接槽132和第二连接槽142均为U型槽时,凹槽303恰好可以与第一连接 槽132或第二连接槽142扣合,限位效果更好,并且,当折叠电池框架100时,第一转轴131或第二转轴141可以通过凹槽303向电连接片300传递转矩,带动电连接片300进行弯折。其中,如图8所示,位于第一转轴131处的电连接片300,其凹槽303设置于电连接片300的上表面,以更好的与位于框架1上端的第一转轴131配合,而位于第二转轴141处的电连接片300,其凹槽303可以设置于电连接片300的下表面,以更好地与位于框架1下端的第二转轴141配合。
而为了方便第一连接孔133a的设置,如图3和图6所示,中间框架1的侧板12(具体为中间框架1的第一侧板121)的沿第三方向W的两端均设有第一耳板133,第一连接孔133a设置于第一耳板133上。
另外,为了方便第二连接孔143a的设置,如图7所示,第二侧框架1的侧板12(具体为第二侧框架1的第一侧板121)的沿第三方向W的两端均设有第二耳板143,第二连接孔143a设置于第二耳板143上。
具体地,由图6和图7可知,在图示实施例中,第一耳板133和第二耳板143均为圆形耳板,且设有第一转轴131的侧板12的与第一耳板133对应的位置以及设有第二转轴141的侧板12的与第二耳板143对应的位置还均设有弧形槽部,弧形槽部对圆形耳板形成避让,防止干涉,方便相邻框架1更平顺的相对转动。
此外,如图1-3所示,在一些实施例中,框架1上还设有镂空部15,镂空部15用于与电池模组10的电连接片300配合。由图11可知,电连接片300位于镂空部15处。通过设置镂空部15,可以在电池模快200及电连接片300组装至框架1中后,对电连接片300进行避让,这一方面可以为电连接片300的弯折提供空间,方便电连接片300弯折过程的顺利实现,另一方面还可以为电连接片300的焊接工具及焊接操作预留空间,方便电连接片300焊接过程的完成,提高电池模组10的组装效率,再一方面也可以使得折叠成组后电连接片300能够裸露在框架1外部,方便对电连接片300进行电压采样等。可以利用PCB板(Printed Circuit Board)或者FPC板(Flexible Printed Circuit Board)对电连接片300进行电压采样。
具体地,由图3可知,镂空部15可以包括彼此连通的第一镂空部151和第二镂空部152,第一镂空部151位于侧板12上并沿着侧板12的厚度方向贯穿侧板12,第二镂空部152位于托板11上并沿着托板11的厚度方向贯穿托板11。基于此,镂空部15呈L型,可以在平铺状态下及折叠状态下均对电连接片300进行充分避让。可以理解,侧板12的厚度方向是指侧板12的沿第一方向L的尺寸,托板11的后度方向是指托板11的沿第二方向H上的尺寸。
更具体地,镂空部15沿第三方向W位于框架1的中部,这与电连接片300沿第三方向W位于框架1中部的特点相适应,方便镂空部15避让位于框架1沿第三方向W中部的电连接片300。同时,如前所述,第一连接槽132和第二连接槽142也均沿第三方向W位于框架1的中部,镂空部15与第一连接槽132和第二连接槽142在第三方向W上的位置相应,且第一连接槽132处的镂空部15位于第一连接槽132的下方,而第二连接槽142处的镂空部15位于第二连接槽142的上方。
并且,如图1-3所示,框架1的沿第一方向L的相对两侧均设有镂空部15,具体地,第一侧板121和第二侧板122上均设有第一镂空部151,且托板11的沿第一方向W的两端则均对应设有第二镂空部152,这方便对框架1中位于沿第一方向L两侧的两个电连接片300均进行避让。
基于前述设置,可以如图8-9或图14所示,在电池框架100处于展开状态时,将各电池模块200放入各自对应的框架1中,并将电连接片300放置到位,进行焊接,利用电连接片300实现不同电池201的极耳201a的电连接,使电池模块200、电连接片300及电池框架100成为一体,之后,可以如图10或图16所示,相对转动相邻的两个框架1,使电池框架100进行S形折叠,将电池框架100由展开状态转变为折叠状态,实现电池模组10的组装。此处的放置、焊接以及折叠均可由自动化的生产设备自动操作,生产效率较高。其中,电连接片300具体放置在电池框架100的转轴(即第一转轴131和第二转轴141)处,以便在折叠电池框架100的过程中,使电连接片300的第一弯折部301和第二弯折部302在转轴的作用下相对弯折,从而使得电连接片300能够随着电池框架100的 折叠而自动弯折,进一步简化电池模组10的成组过程。
而为了使电池模组10在折叠后能够保持于所期望的折叠状态,如图13所示,本申请的电池框架100,其任意相邻的两个框架1之间可以设置锁止结构16,该锁止结构16用于在折叠状态锁止相邻的两个框架1。具体地,如图11-12所示,锁止结构16可以包括卡合结构161,卡合结构161的卡槽161a和卡扣161b分别设置于相邻的两个框架1上,使得当电池框架100折叠到位时,卡扣161b可以***卡槽161a中,使相邻的框架1相互扣接,锁止在一起,将电池框架100更可靠地保持于折叠状态,防止其意外散开。
在本申请中,如图1所示,任意相邻的三个框架1中,位于中间框架1两侧的两个框架1可以采用相同的结构,以简化结构,方便实现电池框架100的模块化,降低生产成本,提高生产效率。
具体地,如图1-3所示,在一些实施中,电池框架100中的框架1分为两种,一种如图1和图2所示,称为第一框架,其第一侧板121的下端设有第四转动部(具体为第二连接孔143a和第二连接槽142),且其第二侧板122的上端设有第一转动部(具体为第一转轴131),另一种如图1和图3所示,称为第二框架,其第一侧板121的上端设有与第一转动部配合的第二转动部(具体为第一连接孔133a和第一连接槽132),且其第二侧板122的下端设有与第四转动部配合的第三转动部(具体为第二转轴141),并且,一个第一框架和一个第二框架相邻布置,组成框架单元1a,而整个电池框架100由一个、两个或多个框架单元1a沿第一方向L并排布置形成,换句话说,电池框架100包括框架单元1a,框架单元1a包括沿第一方向L并排布置的第一框架和第二框架,第一框架的第二侧板122与第二框架121的第一侧板121通过第一转动部和第二转动部的配合(第一转动结构13)转动连接,且当框架单元1a的数量为两个以上时,相邻框架单元1a之间通过第三转动部和第四转动部的配合(第二转动结构14)转动连接,也即第一框架和第二框架交错布置并彼此转动连接,使得电池框架100可以按照S形轨迹折叠起来。由于这种情况下,只需生产第一框架和第二框架两种框架1结构,因此,设计及生产成本更低,模块 化程度更高,组装也更简单方便,便于自动化生产,生产效率也更高。
并且,如图2和图3所示,第一框架和第二框架上均设有镂空部15,且镂空部15不仅位于第一侧板121上,也位于第二侧板122上;同时,第一框架的第三侧板123和第四侧板124上均设有卡槽161a,而第二框架的第三侧板123和第四侧板124上均对应设有卡扣161b,且第一框架的第三侧板123和第四侧板124的沿第二方向H的两端均设有卡槽161a,而第二框架的第三侧板123和第四侧板124的沿第二方向H的两端均设有卡扣161b,这样,方便第二框架(或第一框架)与其两侧相邻的两个第一框架(或第二框架)卡扣连接,实现折叠状态下的锁紧。其中由图12可知,卡扣161b呈L型。当然,卡扣161b和卡槽161a的位置可以互换,即,也可以卡扣161b设置于第一框架上,且卡槽161a设置于第二框架上。
本申请的电池模组10,其折叠完成后,可以放置于电池包的箱体中。为了实现电池模组10在箱体中的固定,电池框架100可以胶粘于箱体内壁上,或者,电池框架100上也可以设置钩挂部(如挂耳)等,使得电池框架100可以钩挂于箱体内壁上。
在本申请中,电池框架100可以采用绝缘材料制成,以使电池模组10中的不同电池模块200之间彼此绝缘,且电池模组10与箱体之间绝缘,这有利于减少电池包及电池模组10中绝缘片的数量,简化结构,降低成本。
另外,电池框架100可以采用隔热材料制成,以起到减少电池201热扩散的作用。
虽然已经参考优选实施例对本申请进行了描述,但在不脱离本申请的范围的情况下,可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是,只要不存在结构冲突,各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例,而是包括落入权利要求的范围内的所有技术方案。

Claims (19)

  1. 一种电池框架(100),其中,包括至少两个框架(1),所述框架(1)包括托板(11)和侧板(12),所述侧板(12)连接于所述托板(11)的四周并包括沿第一方向(L)相对布置的第一侧板(121)和第二侧板(122),所述第一方向(L)平行于所述托板(11)所在的平面,所述至少两个框架(1)沿着所述第一方向(L)依次连接,且在所述至少两个框架(1)中,任意相邻的两个所述框架(1)之间可转动地连接,使得所述电池框架(100)具有展开状态和折叠状态,处于所述展开状态时,所述至少两个框架(1)沿着所述第一方向(L)并排布置,处于所述折叠状态时,所述至少两个框架(1)沿着第二方向(H)堆叠,所述第二方向(H)垂直于所述托板(11)所在的平面。
  2. 根据权利要求1所述的电池框架(100),其中,所述电池框架(100)包括至少三个所述框架(1),在任意相邻的三个所述框架(1)中,中间的框架(1)相对于两侧的两个框架(1)向相反方向折叠。
  3. 根据权利要求2所述的电池框架(100),其中,在任意相邻的三个所述框架(1)中,位于中间的框架(1)与位于所述中间的框架(1)第一侧的所述框架(1)通过第一转动结构(13)转动连接,位于中间的框架(1)与位于所述中间的框架(1)第二侧的所述框架(1)通过第二转动结构(14)转动连接,所述第一转动结构(13)和所述第二转动结构(14)沿着所述第二方向(H)位于所述框架(1)的两端,以使中间的框架(1)相对于两侧的两个框架(1)向相反方向折叠。
  4. 根据权利要求3所述的电池框架(100),其中,所述第一转动结构(13)沿着所述第二方向(H)位于所述侧板(12)的远离所述托板(11)的一端,所述第二转动结构(14)沿着所述第二方向(H)位于所述侧板(12)的靠近所述托板(11)的一端。
  5. 根据权利要求3所述的电池框架(100),其中,
    所述第一转动结构(13)包括第一转轴(131)、第一连接槽(132)和两个第一连接孔(133a),所述第一转轴(131)设置在所述第一侧的框架(1)的第二侧板(122)上,所述第一连接槽(132)和所述两个第一连接孔(133a)均设置在所述中间的框架(1)的第一侧板(121)上,所述两个第一连接孔(133a)位于所述中间的框架(1)第一侧板(121)的沿第三方向(W)的两端,所述第一连接槽(132)沿着所述第三方向(W)位于所述两个第一连接孔(133a)之间,所述第三方向(W)垂直于所述第一方向(L)和所述第二方向(H),所述第一转轴(131)***所述第一连接槽(132)和所述两个第一连接孔(133a)中;和/或,
    所述第二转动结构(14)包括第二转轴(141)、第二连接槽(142)和两个第二连接孔(143a),所述第二转轴(141)设置在所述中间的框架(1)的第二侧板(122)上,所述第二连接槽(142)和所述两个第二连接孔(143a)均设置在所述第二侧的框架(1)的第一侧板(121)上,所述两个第二连接孔(143a)位于所述第二 侧的框架(1)第一侧板(121)的沿第三方向(W)的两端,所述第二连接槽(142)沿着所述第三方向(W)位于所述两个第二连接孔(143a)之间,所述第三方向(W)垂直于所述第一方向(L)和所述第二方向(H),所述第二转轴(141)***所述第二连接槽(142)和所述两个第二连接孔(143a)中。
  6. 根据权利要求1所述的电池框架(100),其中,任意相邻的两个所述框架(1)之间设有锁止结构(16),所述锁止结构(16)用于在所述电池框架(100)处于折叠状态时锁止相邻的两个所述框架(1)。
  7. 根据权利要求6所述的电池框架(100),其中,所述锁止结构(16)包括卡合结构(161),所述卡合结构(161)包括卡槽(161a)和卡扣(161b),所述卡槽(161a)和所述卡扣(161b)分别设置于相邻的两个所述框架(1)上,且所述电池框架(100)处于所述折叠状态时,所述卡扣(161b)与所述卡槽(161a)卡合。
  8. 根据权利要求1所述的电池框架(100),其中,所述框架(1)上还设有镂空部(15),所述镂空部(15)用于与电池模组(10)的电连接片(300)配合。
  9. 根据权利要求8所述的电池框架(100),其中,所述镂空部(15)包括第一镂空部(151)和第二镂空部(152),所述第一镂空部(151)位于所述侧板(12)上并沿着所述侧板(12)的厚度方向贯穿所述侧板(12),所述第二镂空部(152)位于所述托板(11)上并沿着所述托板(11)的厚度方向贯穿所述托板(11)。
  10. 根据权利要求2-9任一所述的电池框架(100),其中,在任意相邻的三个所述框架(1)中,位于中间框架(1)两侧的两个框架(1)结构相同。
  11. 根据权利要求1所述的电池框架(100),其中,所述框架(1)采用绝缘材料制成;和/或,所述框架(1)采用隔热材料制成。
  12. 一种电池模组(10),包括电连接片(300)和包括电池(201)的电池模块(200),其中,所述电池模组(10)还包括如权利要求1-11任一所述的电池框架(100),所述电池框架(100)处于所述折叠状态,且所述电池框架(100)的各框架(1)中均设有所述电池模块(200),所述电连接片(300)电连接所述电池模组(10)中的不同电池(201)的极耳(201a),所述电连接片(300)包括彼此连接的第一弯折部(301)和第二弯折部(302),所述第一弯折部(301)和所述第二弯折部(302)之间具有角度并分别位于相邻的两个所述框架(1)中。
  13. 根据权利要求12所述的电池模组(10),其中,所述电连接片(300)位于所述电池框架(100)的镂空部(15)处。
  14. 根据权利要求12所述的电池模组(10),其中,所述第一弯折部(301)和所述第二弯折部(302)之间设有凹槽(303),所述凹槽(303)与所述电池框架(100)的第一转轴(131)或第二转轴(141)配合。
  15. 根据权利要求12所述的电池模组(10),其中,所述极耳(201a)位于所述电池(201)的沿第三方向(W)的一侧,所述第三方向(W)垂直于所述第一方向(L)和所述第二方向(H),或者,所述极耳(201a)位于所述电池(201)的沿所述第一方向(L)的两侧。
  16. 根据权利要求15所述的电池模组(10),其中,所述电池模块(200)包括两 个电池(201),所述两个电池(201)沿着所述第三方向(W)排列,且所述电池(201)的极耳(201a)位于所述两个电池(201)之间;或者,所述电池模块(200)包括一个所述电池(201),所述电池(201)的极耳(201a)位于所述电池(201)的沿着所述第一方向(L)的两侧。
  17. 一种电池包,包括箱体,其中,还包括如权利要求12-16任一所述的电池模组(10),所述电池模组(10)设置于所述箱体中。
  18. 一种如权利要求12-15任一所述的电池模组(10)的组装方法,其中,包括:
    在处于展开状态的电池框架(100)的各框架(1)中分别放入包括电池(201)的电池模块(200);
    用电连接片(300)电连接不同电池(201)的极耳(201a);
    使相邻的两个所述框架(1)相对转动,将所述电池框架(100)由所述展开状态转变为折叠状态。
  19. 根据权利要求18所述的组装方法,其中,在用所述电连接片(300)电连接不同电池(201)的极耳(201a)时,将所述电连接片(300)放于所述电池框架(100)的第一转轴(131)或第二转轴(141)处,且在使相邻的两个所述框架(1)相对转动时,使所述电连接片(300)的第一弯折部(301)和第二弯折部(302)在所述第一转轴(131)或所述第二转轴(141)的作用下相对弯折。
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