WO2021093488A1 - 隔离板、电池模组、电池组及装置 - Google Patents

隔离板、电池模组、电池组及装置 Download PDF

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Publication number
WO2021093488A1
WO2021093488A1 PCT/CN2020/119718 CN2020119718W WO2021093488A1 WO 2021093488 A1 WO2021093488 A1 WO 2021093488A1 CN 2020119718 W CN2020119718 W CN 2020119718W WO 2021093488 A1 WO2021093488 A1 WO 2021093488A1
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WO
WIPO (PCT)
Prior art keywords
isolation
assembling piece
battery module
battery
splicing
Prior art date
Application number
PCT/CN2020/119718
Other languages
English (en)
French (fr)
Inventor
侯羽佳
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 EP20887902.3A priority Critical patent/EP3916895B1/en
Publication of WO2021093488A1 publication Critical patent/WO2021093488A1/zh
Priority to US17/563,137 priority patent/US20220123414A1/en

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Classifications

    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • H01M50/249—Mountings; 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
    • 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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; 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
    • 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
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • 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 embodiments of the present application relate to the technical field of power batteries, in particular to a separator, a battery module, a battery pack, and a device using the battery module as a power source.
  • the products of battery modules have a variety of systems and sizes, and have different structures according to the number of battery cells and the different ways of series and parallel, resulting in the isolation plate insulated and connected with each battery cell has a variety of sizes. If the mold is specially developed for each type of isolation board, it will greatly increase the cost of mold opening and material management.
  • the purpose of this application is to provide an isolating plate, a battery module, a battery pack, and a device using the battery module as a power source.
  • the isolating plate can be spliced arbitrarily into a size that meets the requirements according to the number of battery cells of the battery module.
  • this application proposes an isolation plate for a battery module, which includes: a first assembling piece for covering a battery unit of the battery module; the first assembling piece includes a first body portion and a A first connecting part on the peripheral side of a body part; a second assembly part, which is arranged side by side with the first assembly part, and is used to cover another battery unit of the battery module; the second assembly part includes a second body part and is arranged at the second The second connecting part on the peripheral side of the main body part; the first assembling part and the second assembling part are spliced with each other through the cooperation of the first connecting part and the second connecting part.
  • the first assembling piece and the second assembling piece can be arbitrarily spliced to meet the requirements according to the number of battery cells of the battery module.
  • the overall structure is simple, which is convenient for assembly and disassembly, saves mold production costs, and facilitates material management.
  • the first connecting portion includes two first splicing portions arranged opposite to each other along the width direction of the first body portion, one of the first splicing portions is provided with a first convex portion, and the other first splicing portion Is provided with a first concave portion;
  • the second connecting portion includes two second splicing portions arranged opposite to each other along the width direction of the second body portion, one of the second splicing portions is provided with a second convex portion, and the other second splicing portion
  • a second concave part is provided on the upper part; the first convex part can be embedded in the second concave part, or the second convex part can be embedded in the first concave part, so that the first assembling piece and the second assembling piece can be spliced with each other.
  • the first convex portion is a column extending outward along the width direction of the first body portion from the first splicing portion, the second concave portion is a hole that matches the first convex portion; the second convex portion is The second splicing part extends outward along the width direction of the second body part, and the first concave part is a hole matching the second convex part.
  • the first concave portion is a latching groove with an opening along the thickness direction of the first body portion
  • the second convex portion is a latching post that cooperates with the first concave portion
  • the second concave portion is a thickness along the thickness of the second body portion.
  • the direction has an opening card slot
  • the first convex part is a clamping post matched with the second concave part.
  • the first body part and the second body part are respectively provided with two positioning holes spaced apart along their length direction, and the two positioning holes are respectively used for accommodating the positive pole and the negative pole of the battery cell.
  • the first connecting portion further includes a first isolating portion disposed on the peripheral side of each positioning hole, and the two first isolating portions are distributed diagonally with respect to the first body portion;
  • the second connecting portion is also It includes a second isolation part arranged on the peripheral side of each positioning hole, and the two second isolation parts are distributed diagonally with respect to the second body part; among the first assembly piece and the second assembly piece arranged side by side, the first assembly A first interval and a second interval are formed between the two first isolation portions, and a third interval and a fourth interval are formed between the second splicing portion and the two second isolation portions.
  • the first interval and the second interval are ,
  • the third interval and the fourth interval form mutually communicating channels.
  • the first isolation part and the second isolation part can prevent the battery unit from being short-circuited due to the creepage distance or the electric gap being too small.
  • the first isolation portion is provided with a first convex portion on one side in the width direction of the first body portion, and a first recess portion is provided on the other side in the width direction of the first body portion; the second isolation portion is located A second convex portion is provided on one side in the width direction of the second body portion, and a second concave portion is provided on the other side in the width direction of the second body portion.
  • the first connecting portion further includes a first blocking portion disposed between the first isolating portion and one of the first splicing portions; the second connecting portion further includes a first blocking portion disposed between the second isolating portion and one of the first splicing portions; The second blocking part between the two splicing parts; among the first and second assembling parts arranged side by side, the first blocking part and the second blocking part are arranged in alignment.
  • the first assembling piece or the second assembling piece is used to cover more than two battery cells of the battery module.
  • an embodiment of the present application also provides a battery module, which includes: a frame with a containing cavity; two or more battery units contained in the containing cavity; any one of the aforementioned isolation plates, the isolation plate The first assembling piece and the second assembling piece respectively cover the battery cells; the electrode connecting piece is arranged on the isolation plate, and two or more battery units are electrically connected through the electrode connecting piece.
  • this application also proposes a battery pack including the battery module as described above.
  • this application also proposes a device that uses a battery module as a power source, and the battery module is the aforementioned battery module.
  • the isolating plate, battery module and battery pack provided by the present application can randomly splice the first assembly piece and the second assembly piece into an isolating plate meeting the requirements according to the number of battery cells of the battery module.
  • the overall structure is simple and convenient. Assemble and disassemble, save the cost of mold making, and facilitate material management.
  • Fig. 1 is a schematic structural diagram of a vehicle provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a battery pack provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a battery module provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an exploded structure of the battery module shown in FIG. 3.
  • Fig. 5 is a schematic structural diagram of an isolation plate provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of the structure of the first assembling member in the isolation board shown in FIG. 5.
  • FIG. 7 is a schematic structural diagram of a second assembly in the isolation board shown in FIG. 5.
  • FIG. 8 is a schematic structural diagram of another first assembly piece or second assembly piece in the isolation panel shown in FIG. 5.
  • 11b-first isolation part 11c-first blocking part; a-convex part; b-concave part; 112-positioning hole; L1-first interval; L2-second interval;
  • the embodiment of the present application provides a device that uses a battery module as a power source.
  • the device may be, for example, but not limited to, a vehicle, a ship, or an aircraft.
  • an embodiment of the present application provides a vehicle 100 that includes a vehicle body and a battery module.
  • the battery module is installed in the vehicle body.
  • the vehicle 100 may be a pure electric vehicle, a hybrid electric vehicle or an extended-range vehicle.
  • the vehicle body is provided with a driving motor electrically connected with the battery module.
  • the battery module provides power to the drive motor.
  • the drive motor is connected to the wheels on the vehicle body through a transmission mechanism to drive the vehicle to travel.
  • the battery module may be horizontally arranged at the bottom of the vehicle body.
  • the battery module may be a battery pack 20.
  • the battery pack 20 includes a box body and a battery module 10 disposed in the box body.
  • the number of battery modules 10 is one or more.
  • One or more battery modules 10 are arranged in the box.
  • the type of cabinet is not limited.
  • the box can be a frame-shaped box, a disk-shaped box, or a box-shaped box.
  • the box may include a lower box for accommodating the battery module 10 and an upper box covered with the lower box. Understandably, the battery module may also be the battery module 10, that is, the battery module 10 is directly arranged on the vehicle body.
  • the battery module 10 includes more than two battery cells 3.
  • the battery module 10 can be arranged in a variety of ways.
  • the battery module 10 includes a receiving cavity and two or more battery cells 3 located in the receiving cavity. More than two battery units 3 are arranged side by side in the accommodating cavity.
  • a battery module 10 provided by an embodiment of the present application includes: an isolation plate 1, a frame 2, two or more battery cells 3, and an electrode connecting piece 4.
  • the frame 2 has an accommodating cavity, and two or more battery units 3 are accommodated in the accommodating cavity.
  • the isolation plate 1 is used to cover the battery cell 3.
  • the frame 2 includes a pair of end plates 21 and a band 22 forming a receiving cavity.
  • the pair of end plates 21 are disposed at both ends of two or more battery cells 3, and the pair of end plates 21 are connected to the isolation plate 1, and the band 22 is arranged around a pair of end plates 21 and two or more battery cells 3.
  • the frame 2 includes a pair of end plates 21 and side plates (not shown in the figure) forming a receiving cavity, a pair of end plates 21 are provided at both ends of two or more battery cells 3, and a pair of end plates 21 are separated from each other.
  • Board 1 is connected.
  • the frame 2 includes a housing and a cover plate covering the housing, and the isolation plate 1 is connected to the cover plate.
  • the electrode connecting piece 4 is arranged on the isolation plate 1, and two or more battery cells 3 are electrically connected through the electrode connecting piece 4.
  • the electrode connecting piece 4 includes a first connecting piece 41 and a second connecting piece 42, wherein the first connecting piece 41 is electrically connected to two adjacent battery cells 3 of two or more battery cells 3 arranged side by side, and the second connecting piece 42 is electrically connected to the battery cell 3 at the head end or the end of the two or more battery cells 3 arranged side by side.
  • the positive pole or negative pole of each battery cell 3 passes through the separator plate 1 and then welded to the electrode connecting piece 4, so as to realize the electrical connection of two or more battery cells 3.
  • the battery module 10 can be divided into a multi-series and multi-size structure.
  • the number of battery cells 3 of each series of battery modules 10 is different, and the isolation plate 1 follows the battery cells 3 The number of different structures.
  • the isolation board 1 provided by the embodiment of the present application can be made by splicing multiple components with each other.
  • an isolation panel 1 provided by an embodiment of the present application includes: a first assembling piece 11 and a second assembling piece 12.
  • the first assembling piece 11 is used to cover one battery cell 3 of the battery module 10.
  • the first assembling piece 11 includes a first body portion A1 and a first connecting portion B1 provided on the peripheral side of the first body portion A1.
  • the second assembling piece 12 is arranged side by side with the first assembling piece 11, and is used to cover the other battery unit 3 of the battery module 10.
  • the second assembling piece 12 includes a second body portion A2 and a peripheral side of the second body portion A2.
  • the first assembling piece 11 and the second assembling piece 12 are spliced with each other through the cooperation of the first connecting portion B1 and the second connecting portion B2.
  • the material of the first assembly piece 11 and the second assembly piece 12 is plastic, and mass production can be achieved by injection molding. According to the number of battery cells 3 of the battery module 10, a plurality of first assembling parts 11 and a plurality of second assembling parts 12 can be spliced with each other to form an isolation plate 1 of any size, and only the first assembling part 11 and the plurality of parts need to be developed.
  • the mold for the second assembly 12 is sufficient, and there is no need to develop different molds according to different sizes of isolation plates, which reduces mold development costs and facilitates material management.
  • the isolation plate 1 provided by the embodiment of the present application can arbitrarily splice the first assembling piece 11 and the second assembling piece 12 into a size that meets the requirements according to the number of battery cells of the battery module 10.
  • the overall structure is simple, which is convenient for assembly and Disassembly, saving mold production costs, and facilitating material management.
  • isolation plate 1 The specific structure of the isolation plate 1 provided by the embodiment of the present application will be described in further detail below with reference to the accompanying drawings.
  • the first connecting portion B1 of the first assembling member 11 includes two first splicing portions 11a disposed opposite to each other along the width direction of the first body portion A1, one of which is the first splicing portion A first convex portion a1 is provided on 11a, and a first concave portion b1 is provided on the other first splicing portion 11a.
  • the second connecting portion B2 of the second assembling piece 12 includes two second splicing portions 12a disposed opposite to each other along the width direction of the second body portion A2, one of the second splicing portions 12a is provided with a second convex portion a2, and the other A second concave portion b2 is provided on the second splicing portion 12a.
  • the first convex portion a1 can be inserted into the second concave portion b2, or the second convex portion a2 can be inserted into the first concave portion b1, so that the first assembling piece 11 and the second assembling piece 12 are spliced with each other.
  • the first convex portion a1 is a column extending outward along the width direction of the first body portion A1 from the first splicing portion 11a
  • the second concave portion b2 is a hole matching the first convex portion a1.
  • the second convex portion a2 is a column extending outward along the width direction of the second body portion A2 from the second splicing portion 12a
  • the first concave portion b1 is a hole matching the second convex portion a2.
  • the column and the hole can be matched with each other by interference fit, and the column and the hole are inserted into each other along the side-by-side direction of the first assembling piece 11 and the second assembling piece 12, so as to realize the first The assembling piece 11 and the second assembling piece 12 are spliced and connected.
  • the shape of the column may be a cylinder, a tapered column or a square column, and the shape of the hole may be a round hole or a square hole matching the column.
  • the first convex portion a1 and the second convex portion a2 are cylindrical, and the first concave portion b1 and the second concave portion b2 are circular holes, as shown in FIGS. 6 and 7.
  • the first concave portion b1 is a latching groove with an opening along the thickness direction of the first body portion A1, and the second convex portion a2 is a latching post that cooperates with the first concave portion b1.
  • the second concave portion b2 is a latching groove having an opening along the thickness direction of the second body portion A2, and the first convex portion a1 is a latching post that cooperates with the second concave portion b2.
  • the clamping column and the clamping slot can be matched with each other by interference fit, and the clamping column and the clamping slot are inserted into each other in a direction perpendicular to the side-by-side direction of the first assembly piece 11 and the second assembly piece 12. In this way, the splicing connection of the first assembling piece 11 and the second assembling piece 12 is realized.
  • the shape of the card slot can be a rectangular card slot with an opening
  • the shape of the card post can be a rectangular card post matched with the card slot.
  • the shape of the card slot can also be a tapered card slot with an opening
  • the shape of the card column can be a tapered card column matched with the card slot to facilitate centering during the insertion process.
  • the first convex portion a1 and the second convex portion a2 are rectangular clamping posts
  • the first concave portion b1 and the second concave portion b2 are rectangular clamping grooves to facilitate manufacturing.
  • the first body portion A1 and the second body portion A2 are respectively provided with two positioning holes 112 spaced apart along the length of the first body portion A1 and the second body portion A2, and the two positioning holes 112 are respectively used for accommodating the positive pole and the negative pole of the battery cell 3. column.
  • the first body portion A1 and the second body portion A2 are rectangular plates to simplify the structure of the first assembly piece 11 and the second assembly piece 12.
  • the first connecting portion B1 further includes a first isolation portion 11b disposed on the peripheral side of each positioning hole 112, and the two first isolation portions 11b are distributed diagonally with respect to the first body portion A1.
  • the first isolation portion 11b is mainly used to isolate the adjacent electrode connecting pieces 4 in the battery module 10 to prevent the battery unit 3 from being short-circuited due to the creepage distance or the electric gap being too small.
  • the second connecting portion B2 further includes a second isolation portion 12b disposed on the peripheral side of each positioning hole 112, and the two second isolation portions 12b are distributed diagonally with respect to the second body portion A2.
  • the second isolation portion 12b is mainly used to isolate the adjacent electrode connecting pieces 4 in the battery module 10 to prevent the battery cell 3 from being short-circuited due to the creepage distance or the too small electric gap.
  • a first gap L1 and a second gap L2 are formed between the first splicing portion 11a and the two first isolation portions 11b, respectively.
  • a third gap L3 and a fourth gap L4 are formed between the second splicing portion 12a and the two second isolation portions 12b, respectively, and the first gap L1, the second gap L2, the third gap L3, and the fourth gap L4 are connected to each other. aisle.
  • the channel is used for accommodating the sampling component 5 and guiding and constraining the sampling component 5 to realize electrical isolation between the sampling components 5.
  • the battery module 10 in this embodiment further includes a sampling member 5, and the sampling member 5 may be any one of a flexible circuit board and a wire harness.
  • the isolation plate 1 is formed with two channels. In some embodiments, one of the channels can accommodate a sampling member 5, such as a flexible circuit board, and the other channel can accommodate another sampling member 5, such as a wire harness. In some embodiments, both channels can also accommodate flexible circuit boards or wire harnesses.
  • the first isolating portion 11b is provided with a first convex portion a1 on one side in the width direction of the first body portion A1, A first recessed portion b1 is provided on the other side in the width direction of the first body portion A1.
  • the second isolation portion 12b is provided with a second convex portion a2 on one side in the width direction of the second body portion A2, and a second concave portion b2 is provided on the other side in the width direction of the second body portion A2.
  • the first convex portion a1 can be inserted into the second concave portion b2, or the second convex portion a2 can be inserted into the first concave portion b1, so that the first assembling piece 11 and the second assembling piece 12 are spliced with each other.
  • the structures of the first convex portion a1, the first concave portion b1, the second convex portion a2, and the second concave portion b2 are as described above, and will not be repeated.
  • the same side of the first assembling portion 11a and the first isolating portion 11b of the first connecting portion B1 may be provided with a convex portion a or
  • a convex portion a may be provided on one side of the first splicing portion 11a
  • a concave portion b may be provided on the same side of the first isolation portion 11b and the first splicing portion 11a, or a certain side of the first splicing portion 11a
  • a concave portion b is provided, and a convex portion a is provided on the same side of the first isolation portion 11b and the first splicing portion 11a.
  • the second splicing portion 12a and the second isolating portion 12b of the second connecting portion B2 may both be provided with a convex portion a or a concave portion b on the same side, or a convex portion a may be provided on one side of the second splicing portion 12a.
  • the second isolating portion 12b is provided with a recess b on the same side of the second splicing portion 12a, or a recess b is provided on one side of the second splicing portion 12a, and the second isolating portion 12b is provided on the same side of the second splicing portion 12a.
  • the convex portion a is provided as long as the first isolation portion 11b and the second isolation portion 12b can be spliced to each other.
  • the first connecting portion B1 further includes a first blocking portion 11c disposed between the first isolating portion 11b and one of the first splicing portions 11a;
  • the second connecting portion B2 further includes a second isolating portion The second blocking portion 12c between 12b and one of the second splicing portions 12a; among the first assembling piece 11 and the second assembling piece 12 arranged side by side, the first blocking portion 11c and the second blocking portion 12c are aligned.
  • the second interval L2 formed between the first splicing portion 11a and one of the first isolation portions 11b is divided into two sections by the first blocking portion 11c, One of the intervals is aligned with the first interval L1 to form a part of the aforementioned channel.
  • the third interval L3 formed between the second splicing portion 12a and one of the second isolation portions 12b is divided into two sections by the second blocking portion 12c, and one of the intervals is aligned with the fourth interval L4 to form a part of the aforementioned passage.
  • the sampling member 5 is placed in the channel separated by the first blocking portion 11c and the second blocking portion 12c, which can prevent the sampling member 5 from contacting the pole pole of the battery cell 3 passing through the positioning hole 112 from short-circuiting and other faults.
  • the embodiment of the present application also provides another first assembling piece 11 or second assembling piece 12 for covering more than two battery cells 3 of the battery module 10.
  • the first assembling piece 11 or the second assembling piece 12 can be regarded as a structure in which the first assembling piece 11 and the second assembling piece 12 are arranged side by side and alternately arranged as a whole as described above.
  • the first assembling piece 11 or the second assembling piece 12 is a structure in which a first assembling piece 11 shown in FIG. 6 and a second assembling piece 12 shown in FIG. 7 are arranged side by side as an integrated structure, and To cover the two battery cells 3 of the battery module 10.
  • the use of the first assembling piece 11 or the second assembling piece 12 can reduce the splicing steps and speed up the assembly efficiency of the isolation board 1.
  • the first assembling piece 11 or the second assembling piece 12 is a plurality of first assembling pieces 11 shown in FIG. 6 and a plurality of second assembling pieces 12 shown in FIG. 7 side by side and alternately arranged as a whole
  • the structure is used to cover the multiple battery cells 3 of the battery module 10.
  • the number of the first assembling parts 11 and the second assembling parts 12 arranged side by side and alternately should not be too much, so as to reduce mold development costs and incoming material management costs.
  • the battery module 10 includes 9 battery cells 3, and the isolation plate 1 may be 5 first assembling pieces 11 shown in FIG. 6 and 4 second assembling pieces 12 shown in FIG. There can be three first assembling pieces 11 shown in FIG. 6, two second assembling pieces 12 shown in FIG. 7, and two structures shown in FIG. 8 being spliced together in a predetermined order.
  • the isolation plate 1 can be spliced according to the number of battery cells 3 in the battery module 10.
  • the battery module 10 includes N battery cells 3
  • one of the first electrode connecting pieces 41 is electrically connected to the negative pole of the i-th battery cell 3 and the positive pole of the i+1-th battery cell 3, and the other is first
  • the electrode connecting piece 41 is electrically connected to the negative pole of the i+1th battery cell 3 and the positive pole of the i+2th battery cell 3, respectively
  • the second connecting piece 42 is electrically connected to the positive pole of the first battery cell 3 and the Nth pole.
  • the negative poles of each battery unit are electrically connected, where 1 ⁇ i ⁇ N, and N is an integer greater than 1.
  • a plurality of battery cells 3 are connected in series/parallel to form a complete battery module 10.
  • the battery module 10 includes 9 battery cells, and the isolation plate 1 is spliced together by 5 first assembling pieces 11 and 4 second assembling pieces 12 together.
  • the eight first electrode connecting pieces 41 and the two second connecting pieces 42 are arranged in two rows.
  • the four first electrode connecting pieces 41 in one row are electrically connected to the negative pole of the i-th battery cell 3 and the positive pole of the i+1-th battery cell 3, respectively, and the four in the other row
  • the first electrode connecting piece 41 is electrically connected to the negative pole of the i+1 th battery cell 3 and the positive pole of the i+2 th battery cell 3 respectively
  • the two second connecting pieces 42 are electrically connected to the positive pole of the first battery cell 3
  • the column and the negative column of the ninth battery unit are electrically connected respectively, where 1 ⁇ i ⁇ 9.
  • the battery module 10 provided by the embodiment of the present application adopts the isolation plate 1 as described above, which can be spliced to meet the required size according to the number of battery cells 3, the overall structure is simple, the mold manufacturing cost and the management cost are saved, and the cost Assembly and disassembly.

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Abstract

一种隔离板（1）、电池模组（10）、电池组（20）及装置。该隔离板（1）用于电池模组（10），其包括：第一拼装件（11），用于覆盖电池模组（10）的一个电池单元（3），第一拼装件（11）包括第一本体部（A1）及设置于第一本体部（A1）周侧的第一连接部（B1）；第二拼装件（12），与第一拼装件（11）并排设置，用于覆盖电池模组（10）的另一个电池单元（3），第二拼装件（12）包括第二本体部（A2）及设置于第二本体部（A2）周侧的第二连接部（B2）；第一拼装件（11）和第二拼装件（12）通过第一连接部（B1）与第二连接部（B2）的配合相互拼接。通过将第一拼装件（11）与第二拼装件（12）相互拼接，可以根据电池模组（10）内的电池单元（3）的数量拼接成任意大小的隔离板（1），整体结构简单，便于组装与拆卸，且节省模具制作成本，便于物料管理。

Description

隔离板、电池模组、电池组及装置
本申请要求于2019年11月15日提交中国专利局、申请号为201921973135.0、发明名称为“隔离板、电池模组、电池组及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施方式涉及动力电池技术领域，特别是涉及一种隔离板、电池模组、电池组及使用电池模组作为电源的装置。
背景技术
随着电池模组的多样化发展，传统的产品开发方式导致零部件越来越多，物料越来越难管控。电池模组的产品具有多种体系和尺寸，根据电池单元的数量及串、并联方式的不同而具有不同的结构，导致与各电池单元绝缘连接的隔离板具有多种尺寸。如果每种隔离板都专门开发模具，将极大增加模具开模成本和物料管理成本。
发明内容
本申请的目的是提供一种隔离板、电池模组、电池组及使用电池模组作为电源的装置，该隔离板可以根据电池模组的电池单元的数量任意拼接为满足要求的尺寸。
为此，本申请提出了一种隔离板，用于电池模组，其包括：第一拼装件，用于覆盖电池模组的一个电池单元，第一拼装件包括第一本体部及设置于第一本体部周侧的第一连接部；第二拼装件，与第一拼装件 并排设置，用于覆盖电池模组的另一个电池单元，第二拼装件包括第二本体部及设置于第二本体部周侧的第二连接部；第一拼装件和第二拼装件通过第一连接部与第二连接部的配合相互拼接。
因此，可以根据电池模组的电池单元的数量将第一拼装件与第二拼装件任意拼接为满足要求的隔离板，整体结构简单，便于组装与拆卸，且节省模具制作成本，便于物料管理。
根据本申请的一个方面，第一连接部包括沿第一本体部的宽度方向相对设置的两个第一拼接部，其中一个第一拼接部上设置有第一凸部，另一个第一拼接部上设置有第一凹部；第二连接部包括沿第二本体部的宽度方向相对设置的两个第二拼接部，其中一个第二拼接部上设置有第二凸部，另一个第二拼接部上设置有第二凹部；第一凸部能够嵌入第二凹部，或者第二凸部能够嵌入第一凹部，以使第一拼装件与第二拼装件相互拼接。
根据本申请的一个方面，第一凸部为由第一拼接部沿第一本体部的宽度方向向外延伸的柱体，第二凹部为与第一凸部匹配的孔；第二凸部为由第二拼接部沿第二本体部的宽度方向向外延伸的柱体，第一凹部为与第二凸部匹配的孔。
根据本申请的一个方面，第一凹部为沿第一本体部的厚度方向具有开口的卡槽，第二凸部为与第一凹部配合的卡柱；第二凹部为沿第二本体部的厚度方向具有开口的卡槽，第一凸部为与第二凹部配合的卡柱。
根据本申请的一个方面，第一本体部和第二本体部分别沿自身长度方向设置有间隔分布的两个定位孔，两个定位孔分别用于容纳电池单元的正极柱和负极柱。
根据本申请的一个方面，第一连接部还包括设置于每个定位孔周侧的第一隔离部，且两个第一隔离部相对于第一本体部呈对角分布；第二连接部还包括设置于每个定位孔周侧的第二隔离部，且两个第二隔离部相对于第二本体部呈对角分布；并排设置的第一拼装件与第二拼装件中，第一拼接部与两个第一隔离部之间分别形成第一间隔和第二间隔，第二拼接部与两个第二隔离部之间分别形成第三间隔和第四间隔，第一间隔、第二间隔、第三间隔和第四间隔形成相互连通的通道。第一隔离部和第二隔离部能够防止电池单元因爬电距离或者电气间隙过小造成短路。
根据本申请的一个方面，第一隔离部位于第一本体部的宽度方向一侧设置有第一凸部，位于第一本体部的宽度方向另一侧设置有第一凹部；第二隔离部位于第二本体部的宽度方向一侧设置有第二凸部，位于第二本体部的宽度方向另一侧设置有第二凹部。
根据本申请的一个方面，第一连接部还包括设置于第一隔离部与其中一个第一拼接部之间的第一阻挡部；第二连接部还包括设置于第二隔离部与其中一个第二拼接部之间的第二阻挡部；并排设置的第一拼装件与第二拼装件中，第一阻挡部与第二阻挡部对齐设置。
根据本申请的一个方面，第一拼装件或者第二拼装件用于覆盖电池模组的两个以上电池单元。
另一方面，本申请实施例还提供了一种电池模组，其包括：框架，具有容纳腔；两个以上电池单元，容纳于容纳腔；如前所述的任一种隔离板，隔离板的第一拼装件与第二拼装件分别覆盖电池单元；电极连接片，设置于隔离板上，两个以上电池单元通过电极连接片电连接。
另一方面，本申请还提出了一种电池组，该电池组包括如前所述 的电池模组。
另一方面，本申请还提出了一种使用电池模组作为电源的装置，该电池模组为如前所述的电池模组。
本申请提供的一种隔离板、电池模组及电池组，可以根据电池模组的电池单元的数量将第一拼装件与第二拼装件任意拼接为满足要求的隔离板，整体结构简单，便于组装与拆卸，且节省模具制作成本，便于物料管理。
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一简单地介绍，显而易见地，下面描述中的附图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的前提下，还可以根据这些附图获得其它的附图。
下面将参考附图来描述本申请示例性实施例的特征、优点和技术效果。在附图中，相同的部件使用相同的附图标记。附图并未按照实际的比例绘制。
图1是本申请一实施例提供的一种车辆的结构示意图。
图2是本申请一实施例提供的一种电池组的结构示意图。
图3是本申请一实施例提供的一种电池模组的结构示意图。
图4是图3所示的电池模组的分解结构示意图。
图5是本申请实施例提供的一种隔离板的结构示意图。
图6是图5所示的隔离板中的第一拼装件的结构示意图。
图7是图5所示的隔离板中的第二拼装件的结构示意图。
图8是图5所示的隔离板中的另一种第一拼装件或者第二拼装件的结构示意图。
附图标记说明：
100-车辆；
20-电池组；
10-电池模组；
1-隔离板；
11-第一拼装件；A1-第一本体部；B1-第一连接部；11a-第一拼接部；
11b-第一隔离部；11c-第一阻挡部；a-凸部；b-凹部；112-定位孔；L1-第一间隔；L2-第二间隔；
12-第二拼装件；A2-第二本体部；B2-第二连接部；12a-第二拼接部；
12b-第二隔离部；12c-第二阻挡部；L3-第三间隔；L4-第四间隔；
2-框架；21-端板；22-箍带；
3-电池单元；
4-电极连接片；41-第一连接片；42-第二连接片；
5-采样构件。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例。在下面的详细描述中，提出了许多具体细节，以便提供对本申请的全面理解。但是，对于本领域技术人员来说很明显的是，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了 通过示出本申请的示例来提供对本申请的更好的理解。在附图和下面的描述中，至少区域的公知结构和技术没有被示出，以便避免对本申请造成不必要的模糊；并且，为了清晰，可能夸大了区域结构的尺寸。此外，下文中所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸式连接，或一体地连接；可以是直接相连，也可以间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
为了更好地理解本申请，下面结合图1至图8对本申请实施例提供的一种隔离板、电池模组、电池组及使用电池模组作为电源的装置进行详细描述。
本申请实施例提供了一种使用电池模组作为电源的装置。该装置可以为例如但不限于车辆、船舶或飞行器等。
参见图1所示，本申请的一个实施例提供一种车辆100，其包括车辆主体和电池模块。电池模块设置于车辆主体。其中，车辆100可以为纯电动汽车，也可以混合动力汽车或增程式汽车。车辆主体设置有与电池模块电连接驱动电机。电池模块向驱动电机提供电能。驱动电机通过传动机构与车辆主体上的车轮连接，从而驱动汽车行进。在一些实施例中，电池模块可水平设置于车辆主体的底部。
参见图2所示，电池模块可以是电池组20。电池组20的设置方式有多种。在一些实施例中，电池组20包括箱体和设置于箱体内的电 池模组10。电池模组10的数量为一个或多个。一个或多个电池模组10排列布置于箱体内。箱体的类型不受限制。箱体可为框状箱体、盘状箱体或盒状箱体等。在一些实施例中，箱体可包括用于容纳电池模组10的下箱体和与下箱体盖合的上箱体。可以理解地，电池模块也可以是电池模组10，即将电池模组10直接设置于车辆主体上。
电池模组10包括两个以上的电池单元3。电池模组10的设置方式有多种，在一个实施例中，电池模组10包括容纳腔和位于容纳腔内的两个以上的电池单元3。两个以上的电池单元3在容纳腔内并排设置。
请一并参见图3和图4所示，本申请实施例提供的一种电池模组10包括：隔离板1、框架2、两个以上电池单元3和电极连接片4。
框架2具有容纳腔，两个以上电池单元3容纳于该容纳腔。隔离板1用于覆盖电池单元3。框架2的设置方式有多种。例如，框架2包括形成容纳腔的一对端板21和箍带22，一对端板21设置于两个以上电池单元3的两端，且一对端板21与隔离板1连接，箍带22环绕一对端板21和两个以上电池单元3设置。例如，框架2包括形成容纳腔的一对端板21和侧板(图中未示出)，一对端板21设置于两个以上电池单元3的两端，且一对端板21与隔离板1连接。再例如，框架2包括外壳和盖设于外壳处的盖板，隔离板1与盖板连接。
电极连接片4设置于隔离板1上，两个以上电池单元3通过电极连接片4电连接。电极连接片4包括第一连接片41和第二连接片42，其中，第一连接片41与并排布置的两个以上电池单元3中相邻的两个电池单元3电连接，第二连接片42与并排布置的两个以上电池单元3中的首端或者末端的电池单元3电连接。每个电池单元3的正极柱或者负极 柱穿过隔离板1后与电极连接片4焊接连接，以实现两个以上电池单元3的电连接。
根据电池模组10的功率需求不同，电池模组10可以分为多系列、多尺寸的结构，每个系列的电池模组10的电池单元3的数量不同，隔离板1也随着电池单元3的数量而具有不同的结构。为了减少隔离板1的模具开发成本，本申请实施例提供的隔离板1可以采用多个部件相互拼接的方式制成。
参见图5所示，本申请实施例提供的一种隔离板1包括：第一拼装件11和第二拼装件12。
第一拼装件11用于覆盖电池模组10的一个电池单元3，第一拼装件11包括第一本体部A1及设置于第一本体部A1周侧的第一连接部B1。
第二拼装件12与第一拼装件11并排设置，用于覆盖电池模组10的另一个电池单元3，第二拼装件12包括第二本体部A2及设置于第二本体部A2周侧的第二连接部B2。
第一拼装件11和第二拼装件12通过第一连接部B1与第二连接部B2的配合相互拼接。
第一拼装件11和第二拼装件12的材质为塑胶，可以通过注塑成型的方式实现批量生产。根据电池模组10的电池单元3的数量，可以将多个第一拼装件11与多个第二拼装件12相互拼接为任意尺寸的隔离板1，且只需要开发第一拼装件11与多个第二拼装件12的模具即可，而不需要根据不同尺寸的隔离板开发不同的模具，降低了模具开发成本，也便于物料管理。
本申请实施例提供的一种隔离板1，可以根据电池模组10的电池 单元的数量将第一拼装件11与第二拼装件12任意拼接为满足要求的尺寸，整体结构简单，便于组装与拆卸，且节省模具制作成本，便于物料管理。
下面结合附图进一步详细说明本申请实施例提供的隔离板1的具体结构。
请一并参见图6和图7所示，第一拼装件11的第一连接部B1包括沿第一本体部A1的宽度方向相对设置的两个第一拼接部11a，其中一个第一拼接部11a上设置有第一凸部a1，另一个第一拼接部11a上设置有第一凹部b1。
第二拼装件12的第二连接部B2包括沿第二本体部A2的宽度方向相对设置的两个第二拼接部12a，其中一个第二拼接部12a上设置有第二凸部a2，另一个第二拼接部12a上设置有第二凹部b2。
第一凸部a1能够嵌入第二凹部b2，或者第二凸部a2能够嵌入第一凹部b1，以使第一拼装件11与第二拼装件12相互拼接。
在一些实施例中，第一凸部a1为由第一拼接部11a沿第一本体部A1的宽度方向向外延伸的柱体，第二凹部b2为与第一凸部a1匹配的孔。第二凸部a2为由第二拼接部12a沿第二本体部A2的宽度方向向外延伸的柱体，第一凹部b1为与第二凸部a2匹配的孔。在一些实施例中，柱体与孔之间可以通过过盈配合的方式相互匹配，且柱体与孔沿第一拼装件11与第二拼装件12的并排方向相互插接，从而实现第一拼装件11与第二拼装件12的拼接连接。
其中，柱体的形状可以为圆柱、锥形柱或者方形柱，孔的形状可以为与柱体配合的圆孔或者方形孔。在一些实施例中，第一凸部a1、第二凸部a2为圆柱，第一凹部b1、第二凹部b2为圆孔，如图6、7所 示。
在一些实施例中，第一凹部b1为沿第一本体部A1的厚度方向具有开口的卡槽，第二凸部a2为与第一凹部b1配合的卡柱。第二凹部b2为沿第二本体部A2的厚度方向具有开口的卡槽，第一凸部a1为与第二凹部b2配合的卡柱。在一些实施例中，卡柱与卡槽之间可以通过过盈配合的方式相互匹配，且卡柱与卡槽沿垂直于第一拼装件11与第二拼装件12的并排方向的方向相互插接，从而实现第一拼装件11与第二拼装件12的拼接连接。
其中，卡槽的形状可以为具有开口的矩形卡槽，卡柱的形状可以为与卡槽配合的矩形卡柱。卡槽的形状还可以为具有开口的锥形卡槽，卡柱的形状可以为与卡槽配合的锥形卡柱，便于在插接过程中对中。在一些实施例中，第一凸部a1、第二凸部a2为矩形卡柱，第一凹部b1、第二凹部b2为矩形卡槽，以便于制造。
在一些实施例中，第一本体部A1和第二本体部A2分别沿自身长度方向设置有间隔分布的两个定位孔112，两个定位孔112分别用于容纳电池单元3的正极柱和负极柱。在一些实施例中，第一本体部A1和第二本体部A2为矩形板件，以简化第一拼装件11与第二拼装件12的结构。
第一连接部B1还包括设置于每个定位孔112周侧的第一隔离部11b，且两个第一隔离部11b相对于第一本体部A1呈对角分布。第一隔离部11b主要用于隔离电池模组10中相邻的电极连接片4，防止电池单元3因爬电距离或者电气间隙过小造成短路。
第二连接部B2还包括设置于每个定位孔112周侧的第二隔离部12b，且两个第二隔离部12b相对于第二本体部A2呈对角分布。第二隔 离部12b主要用于隔离电池模组10中相邻的电极连接片4，防止电池单元3因爬电距离或者电气间隙过小造成短路。
并排设置的第一拼装件11与第二拼装件12中，第一拼接部11a与两个第一隔离部11b之间分别形成第一间隔L1和第二间隔L2。第二拼接部12a与两个第二隔离部12b之间分别形成第三间隔L3和第四间隔L4，第一间隔L1、第二间隔L2、第三间隔L3和第四间隔L4形成相互连通的通道。该通道用于容纳采样构件5，并对采样构件5进行导向和约束，以实现各个采样构件5之间的电隔离。
如图4所示，本实施例中的电池模组10还包括采样构件5，采样构件5可以是柔性电路板和线束中的任一种。隔离板1形成有两条通道。在一些实施例中，其中一条通道可以容纳一种采样构件5，例如柔性电路板，另一条通道可以容纳另一种采样构件5，例如线束。在一些实施例中，两个通道也可以均容纳柔性电路板或者均容纳线束。
为了防止第一拼装件11与第二拼装件12之间的拼接连接松动，在一些实施例中，第一隔离部11b位于第一本体部A1的宽度方向一侧设置有第一凸部a1，位于第一本体部A1的宽度方向另一侧设置有第一凹部b1。第二隔离部12b位于第二本体部A2的宽度方向一侧设置有第二凸部a2，位于第二本体部A2的宽度方向另一侧设置有第二凹部b2。第一凸部a1能够嵌入第二凹部b2，或者第二凸部a2能够嵌入第一凹部b1，以使第一拼装件11与第二拼装件12相互拼接。其中，第一凸部a1、第一凹部b1、第二凸部a2和第二凹部b2的结构如前所述，不再赘述。
在一些实施例中，并排设置的第一拼装件11与第二拼装件12中，第一连接部B1的第一拼接部11a和第一隔离部11b的同侧可以均 设置有凸部a或者凹部b，也可以第一拼接部11a的某一侧设置有凸部a，第一隔离部11b与第一拼接部11a的同侧设置有凹部b，或者，第一拼接部11a的某一侧设置有凹部b，第一隔离部11b与第一拼接部11a的同侧设置有凸部a。
类似的，第二连接部B2的第二拼接部12a和第二隔离部12b的同侧可以均设置有凸部a或者凹部b，也可以第二拼接部12a的某一侧设置有凸部a，第二隔离部12b与第二拼接部12a的同侧设置有凹部b，或者，第二拼接部12a的某一侧设置有凹部b，第二隔离部12b与第二拼接部12a的同侧设置有凸部a，只要能够使第一隔离部11b与第二隔离部12b能够相互拼接即可。
在一些实施例中，第一连接部B1还包括设置于第一隔离部11b与其中一个第一拼接部11a之间的第一阻挡部11c；第二连接部B2还包括设置于第二隔离部12b与其中一个第二拼接部12a之间的第二阻挡部12c；并排设置的第一拼装件11与第二拼装件12中，第一阻挡部11c与第二阻挡部12c对齐设置。
由此，如前所述的用于容纳采样构件5的通道中，第一拼接部11a与其中一个第一隔离部11b之间形成的第二间隔L2被第一阻挡部11c分为两段，其中一段间隔与第一间隔L1对齐形成前述通道的一部分。第二拼接部12a与其中一个第二隔离部12b之间形成的第三间隔L3被第二阻挡部12c分为两段，其中一段间隔与第四间隔L4对齐形成前述通道的一部分。采样构件5放置于被第一阻挡部11c和第二阻挡部12c隔离的通道内，可以防止采样构件5与穿过定位孔112的电池单元3的极柱接触发生短路等故障。
参见图8所示，本申请实施例还提供了另一种第一拼装件11或者 第二拼装件12，用于覆盖电池模组10的两个以上电池单元3。该第一拼装件11或者第二拼装件12可以视为如前所述的第一拼装件11与第二拼装件12并排且交替布置为一体的结构。
在一些实施例中，该第一拼装件11或者第二拼装件12为图6所示的一个第一拼装件11与图7所示的一个第二拼装件12并排布置为一体的结构，用于覆盖电池模组10的两个电池单元3。当电池模组10的电池单元3数量较多时，采用该第一拼装件11或者第二拼装件12可以减少拼接步骤，加快隔离板1的组装效率。
在一些实施例中，该第一拼装件11或者第二拼装件12为图6所示的多个第一拼装件11与图7所示的多个第二拼装件12并排且交替布置为一体的结构，用于覆盖电池模组10的多个电池单元3。并排且交替布置的第一拼装件11与第二拼装件12的数量不宜过多，以减少模具开发成本和来料管理成本。
例如，电池模组10包括9个电池单元3，隔离板1可以为5个图6所示的第一拼接件11与4个图7所示的第二拼接件12相互交替拼接在一起，也可以为3个图6所示的第一拼接件11、2个图7所示的第二拼接件12、2个图8所示的结构按照预定的顺序相互拼接在一起。
如前所述，隔离板1可以根据电池模组10中的电池单元3的数量进行拼接。假设电池模组10包括N个电池单元3，其中一个第一电极连接片41与第i个电池单元3的负极柱和第i+1个电池单元3的正极柱分别电连接，另一个第一电极连接片41与第i+1个电池单元3的负极柱和第i+2个电池单元3的正极柱分别电连接，第二连接片42与第1个电池单元3的正极柱和第N个电池单元的负极柱分别电连接，其中1≤i<N，N为大于1的整数。由此，多个电池单元3相互串/并联，以形成完整的 电池模组10。
如图3、4所示，电池模组10包括9个电池单元，隔离板1通过5个第一拼接件11和4个第二拼接件12相互拼接在一起。8个第一电极连接片41和2个第二连接片42排成两行。从左向右开始，其中一行中的4个第一电极连接片41与第i个电池单元3的负极柱和第i+1个电池单元3的正极柱分别电连接，另外一行中的4个第一电极连接片41与第i+1个电池单元3的负极柱和第i+2个电池单元3的正极柱分别电连接，2个第二连接片42与第1个电池单元3的正极柱和第9个电池单元的负极柱分别电连接，其中1≤i<9。
本申请实施例提供的电池模组10，采用如前所述的隔离板1，可以根据电池单元3的数量任意拼接为满足要求的尺寸，整体结构简单，节省模具制作成本和管理成本，且便于组装与拆卸。
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 (12)

  1. 一种隔离板(1)，用于电池模组(10)，所述隔离板(1)包括：
    第一拼装件(11)，用于覆盖所述电池模组(10)的一个电池单元(3)，所述第一拼装件(11)包括第一本体部(A1)及设置于所述第一本体部(A1)周侧的第一连接部(B1)；
    第二拼装件(12)，与所述第一拼装件(11)并排设置，用于覆盖所述电池模组(10)的另一个电池单元(3)，所述第二拼装件(12)包括第二本体部(A2)及设置于所述第二本体部(A2)周侧的第二连接部(B2)；
    所述第一拼装件(11)和所述第二拼装件(12)通过所述第一连接部(B1)与所述第二连接部(B2)的配合相互拼接。
  2. 根据权利要求1所述的隔离板(1)，其中，所述第一连接部(B1)包括沿所述第一本体部(A1)的宽度方向相对设置的两个第一拼接部(11a)，其中一个所述第一拼接部(11a)上设置有第一凸部(a1)，另一个所述第一拼接部(11a)上设置有第一凹部(b1)；
    所述第二连接部(B2)包括沿所述第二本体部(A2)的宽度方向相对设置的两个第二拼接部(12a)，其中一个所述第二拼接部(12a)上设置有第二凸部(a2)，另一个所述第二拼接部(12a)上设置有第二凹部(b2)；
    所述第一凸部(a1)能够嵌入所述第二凹部(b2)，或者所述第二凸部(a2)能够嵌入所述第一凹部(b1)，以使所述第一拼装件(11)与所述第二拼装件(12)相互拼接。
  3. 根据权利要求2所述的隔离板(1)，其中，所述第一凸部(a1)为由所述第一拼接部(11a)沿所述第一本体部(A1)的宽度方向向外延伸的柱体，所述第二凹部(b2)为与所述第一凸部(a1)匹配的孔；
    所述第二凸部(a2)为由所述第二拼接部(12a)沿所述第二本体部(A2) 的宽度方向向外延伸的柱体，所述第一凹部(b1)为与所述第二凸部(a2)匹配的孔。
  4. 根据权利要求2或3所述的隔离板(1)，其中，所述第一凹部(b1)为沿所述第一本体部(A1)的厚度方向具有开口的卡槽，所述第二凸部(a2)为与所述第一凹部(b1)配合的卡柱；
    所述第二凹部(b2)为沿所述第二本体部(A2)的厚度方向具有开口的卡槽，所述第一凸部(a1)为与所述第二凹部(b2)配合的卡柱。
  5. 根据权利要求2-4中任意一项所述的隔离板(1)，其中，所述第一本体部(A1)和所述第二本体部(A2)分别沿自身长度方向设置有间隔分布的两个定位孔(112)，所述两个定位孔(112)分别用于容纳所述电池单元(3)的正极柱和负极柱。
  6. 根据权利要求5所述的隔离板(1)，其中，所述第一连接部(B1)还包括设置于每个所述定位孔(112)周侧的第一隔离部(11b)，且两个所述第一隔离部(11b)相对于所述第一本体部(A1)呈对角分布；
    所述第二连接部(B2)还包括设置于每个所述定位孔(112)周侧的第二隔离部(12b)，且两个所述第二隔离部(12b)相对于所述第二本体部(A2)呈对角分布；
    并排设置的所述第一拼装件(11)与所述第二拼装件(12)中，所述第一拼接部(11a)与两个所述第一隔离部(11b)之间分别形成第一间隔(L1)和第二间隔(L2)，所述第二拼接部(12a)与两个所述第二隔离部(12b)之间分别形成第三间隔(L3)和第四间隔(L4)，所述第一间隔(L1)、所述第二间隔(L2)、所述第三间隔(L3)和所述第四间隔(L4)形成相互连通的通道。
  7. 根据权利要求6所述的隔离板(1)，其中，所述第一隔离部(11b)位于所述第一本体部(A1)的宽度方向一侧设置有所述第一凸部(a1)，位于所述第一本体部(A1)的宽度方向另一侧设置有所述第一凹部(b1)；
    所述第二隔离部(12b)位于所述第二本体部(A2)的宽度方向一侧设置有所述第二凸部(a2)，位于所述第二本体部(A2)的宽度方向另一侧设置有所述第二凹部(b2)。
  8. 根据权利要求6或7所述的隔离板(1)，其中，所述第一连接部(B1)还包括设置于所述第一隔离部(11b)与其中一个所述第一拼接部(11a)之间的第一阻挡部(11c)；
    所述第二连接部(B2)还包括设置于所述第二隔离部(12b)与其中一个所述第二拼接部(12a)之间的第二阻挡部(12c)；
    并排设置的所述第一拼装件(11)与所述第二拼装件(12)中，所述第一阻挡部(11c)与所述第二阻挡部(12c)对齐设置。
  9. 根据权利要求1-8中任意一项所述的隔离板(1)，其中，所述第一拼装件(11)或者所述第二拼装件(12)用于覆盖所述电池模组(10)的两个以上电池单元(3)。
  10. 一种电池模组(10)，包括：
    框架(2)，具有容纳腔；
    两个以上电池单元(3)，容纳于所述容纳腔；
    如权利要求1-9中任意一项所述的隔离板(1)，所述隔离板(1)的所述第一拼装件(11)与所述第二拼装件(12)分别覆盖所述电池单元(3)；
    电极连接片(4)，设置于所述隔离板(1)上，两个以上所述电池单元(3)通过所述电极连接片(4)电连接。
  11. 一种电池组(20)，包括如权利要求10所述的电池模组(10)。
  12. 一种使用电池模组作为电源的装置，所述电池模组为如权利要求10所述的电池模组(10)。
PCT/CN2020/119718 2019-11-15 2020-09-30 隔离板、电池模组、电池组及装置 WO2021093488A1 (zh)

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