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WO2015099476A1 - Battery module assembly having sub modules mounted therein - Google Patents

Battery module assembly having sub modules mounted therein Download PDF

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Publication number
WO2015099476A1
WO2015099476A1 PCT/KR2014/012874 KR2014012874W WO2015099476A1 WO 2015099476 A1 WO2015099476 A1 WO 2015099476A1 KR 2014012874 W KR2014012874 W KR 2014012874W WO 2015099476 A1 WO2015099476 A1 WO 2015099476A1
Authority
WO
WIPO (PCT)
Prior art keywords
module assembly
battery module
battery
terminal
cell
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2014/012874
Other languages
French (fr)
Korean (ko)
Inventor
배경현
설재중
최범
이경민
황성주
김현규
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Chem Ltd
Original Assignee
LG Chem Ltd
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 LG Chem Ltd filed Critical LG Chem Ltd
Priority to CN201480063554.4A priority Critical patent/CN105745781B/en
Priority to JP2016532062A priority patent/JP6219519B2/en
Publication of WO2015099476A1 publication Critical patent/WO2015099476A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • 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
    • 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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • 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
    • H01M50/543—Terminals
    • 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
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a battery module assembly in which the sub modules are mounted therein.
  • the power storage device is a device that stores energy when power demand is low and supplies power in an overload or emergency, and provides an effect of improving power quality and energy use efficiency.
  • household power storage devices and industrial or commercial medium power storage devices are associated with smart grid technology, and the market size is rapidly growing.
  • the battery module in order for a battery module to provide the output and capacity required by a predetermined device or device, the battery module must be electrically connected in a series or parallel manner to configure the battery module, and as the capacity of the battery module increases, It should be easy to maintain and stable structure.
  • Examples of the battery cell constituting the battery module include a pouch type battery cell, a square battery cell or a cylindrical battery cell.
  • the battery module is composed of cylindrical battery cells among these battery cells, in the structure of stacking the cylindrical battery cells to form the battery module, the structural instability is relatively higher than that of the rectangular battery cell or the pouch battery cell.
  • the present invention aims to solve the problems of the prior art as described above and the technical problems that have been requested from the past.
  • a battery module assembly including unit modules configured to be electrically connected by a pair of terminal plates while a plurality of battery cells are mounted on a pair of cell frames,
  • Two or more sub-modules are arranged in the direction of the electrode terminal of the battery cell in the state in which the plurality of unit modules are electrically connected, arranged in the lateral direction spaced apart from each other;
  • a communication terminal is formed at one side, and is mounted in a spaced space between the sub-modules BMS (Battery Management System);
  • BMS Battery Management System
  • a front cover plate mounted on the front surface of the base plate, coupled to the base plate and the cover plate, and having input and output terminals at both ends thereof, and having a relay and a fuse electrically connected to the input and output terminals; Front cover plate); And
  • a harness cover mounted on an upper surface of the submodules to measure voltage and temperature from the plurality of battery cells
  • the battery module assembly includes a unit module having a plurality of battery cells mounted on a pair of cell frames, and by arranging the unit modules to configure the sub modules, according to the desired output of the battery module It is easy to expand and contract and can be made into a stable and compact structure.
  • the battery cell may be a cylindrical battery cell.
  • the battery cells in the unit module may be electrically connected in parallel.
  • the pair of cell frames may include a first cell frame on which the first terminal portion of the battery cells is mounted, and a second cell frame on which the second terminal portion of the battery cells is mounted.
  • the first terminal portion may be a positive terminal portion
  • the second terminal portion may be a negative terminal portion, and vice versa.
  • openings in which the first terminal and the second terminal of the cylindrical battery cell are exposed may be formed in the first cell frame and the second cell frame.
  • the openings may be formed in a shape corresponding to the cylindrical battery cell.
  • First and second terminals mounted to the first and second cell frames and exposed through the openings may be connected by a pair of terminal plates.
  • the terminal plates may comprise a first terminal plate connected to the first terminal of the battery cells, and a second terminal plate connected to the second terminal of the battery cells, each of the terminal plates being an electrode of the battery cells. In a state connected to the terminals, it may be mounted on the outer surfaces of the cell frames.
  • the first and second terminal plates may be coupled to each of the first and second terminals by resistance welding.
  • Module terminals may be respectively formed at upper center portions of the first and second cell frames, and the terminal plates may be partially extended in the direction of the module terminals so that the terminal plates may be in electrical contact with the module terminals. There may be.
  • a bus bar may be coupled to a module terminal, and the unit modules may be electrically connected in series in the sub module.
  • the harness cover may measure the voltage and temperature of each unit module at the same time as electrically connecting the submodules.
  • the harness cover may include an electrically insulating body extending in an arrangement direction of the unit modules, and electrically insulating branches extending branched from the body in the direction of each of the unit modules. And voltage sensing wires mounted on an upper surface of each of the main body and the branches, and temperature sensing wires mounted on an upper surface of the central branches of the branches. .
  • harness cover may be further provided with a series wire in one of the branches so that the submodules can be connected in series.
  • the submodules may be connected in series and / or in parallel by a harness cover.
  • the front cover plate may have first through holes corresponding to the communication terminals of the BMS, and the communication terminals may protrude from the front cover plate through the first through grooves.
  • a second through hole corresponding to the fuse may be formed in the front plate, and the fuse cover may be mounted in the second through groove. Due to this structure, the fuse consumed by the overcurrent can be easily replaced through the fuse cover.
  • a rail structure may be formed to allow the unit modules to be slidingly mounted, and first fastening grooves may be formed to be fastened to the cell frame.
  • the rail structure may be a structure in which a guide rail is formed on an upper surface of a base plate in an electrode terminal direction of a battery cell.
  • a rail groove having a structure corresponding to the shape of the guide rail may be formed at the lower ends of the unit modules so as to be mounted on the base plate.
  • Screw grooves may protrude from lower ends of both sides of the cell frame, and the cell frame and the base plate may be fastened by the screw groove and the bolt or the bolt-nut.
  • Second upper fastening grooves may be formed in the upper cover plate to be fastened to the cell frame.
  • a screw groove having a shape corresponding to the second fastening grooves may be formed at an upper end of the cell frame.
  • the cell frame and the upper cover plate may be fastened by the screw groove and the bolt or bolt-nut.
  • the BMS according to one embodiment of the present invention may have a hexahedral structure, and communication terminals may protrude from the top and bottom of one side of the six sides.
  • the harness cover includes, as described above, voltage sensing wires for measuring the voltage of the unit modules and temperature sensing wires for measuring the temperature of the unit modules, and the BMS includes voltage sensing wires and temperature sensing wires of the harness cover. It may be electrically connected to the field.
  • the present invention also provides a battery pack including the battery module assembly.
  • the present invention also provides a device including the battery pack as a power source, and the device is specifically, a home power supply, a utility power supply, a large store power supply, an emergency power supply, a computer room power supply, a portable power supply, It may be a medical equipment power supply, a fire extinguishing power supply, an alarm power supply, an evacuation power supply, an electric vehicle, a hybrid electric vehicle, or a plug-in hybrid electric vehicle.
  • FIG. 1 is a perspective view of a battery module assembly according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of the battery module assembly with the upper cover plate of Figure 1 removed;
  • FIG. 3 is a perspective view of the unit module of FIG. 2;
  • FIG. 4 is a perspective view of the harness cover of FIG. 2.
  • FIG. 1 is a perspective view of a battery module assembly according to an embodiment of the present invention
  • Figure 2 is a perspective view of the battery module assembly with the upper cover plate of Figure 1 is removed.
  • the battery module assembly 100 includes sub-modules 110, a base plate 120, a front cover plate 130, a rear cover plate 140, an upper cover plate 150, BMS 160, relay (not shown), fuse (not shown) and harness cover 300.
  • the sub-modules 110 are electrically connected in a state in which the plurality of unit modules 200 are arranged in the direction of the battery cell electrode terminals, and are mounted on the base plate 120 in a state in which the sub-modules 200 are spaced apart from each other. have.
  • These submodules 110 are electrically connected in series by a series wire 350 mounted on the rearmost branch 320 of the harness cover 300 mounted on the upper surfaces of the submodules 110. .
  • Input and output terminals 133 are formed at both ends of the front cover plate 130, and a first through hole 131 is formed at a central portion thereof, and a fuse cover 181 is disposed at a left side of the first through hole 131.
  • a second through groove (not shown) is formed so that the can be mounted.
  • the submodules 110 and the input / output terminals 133 are electrically connected to each other with a relay (not shown) and a fuse (not shown) interposed therebetween.
  • the BMS 160 has a hexahedral structure, and is mounted in spaced spaces between the sub-modules 110, and communication terminals 161 are formed at the top and bottom surfaces of the BMS 160, respectively, and the front cover is provided. It protrudes from the first through holes 131 of the plate 130.
  • the BMS 160 is electrically connected to the voltage sensing wire 372 and the temperature sensing wire 373 that measure the voltage and temperature of the unit modules 200 of the harness cover 300.
  • the submodules 110 and the BMS 160 are mounted on the base plate 120, and the front cover plate coupled to the base plate 120 and the upper cover plate 150 on the front of the base plate 120. 130 is mounted.
  • Guide rails 121 are formed on the upper surface of the base plate 120 to allow the unit modules 200 to be slidably mounted, and first fastening grooves (not shown) to be fastened to the unit modules 200. ) Is formed.
  • a rail groove (not shown) having a structure corresponding to the shape of the guide rail 121 is formed at the lower end of the unit modules 200 to be mounted on the base plate 120.
  • Second fastening grooves 151 are formed in the upper cover plate 150 to be fastened to the unit modules 200.
  • FIG. 3 is a perspective view schematically illustrating the unit module of FIG. 2.
  • the unit module 200 includes a plurality of cylindrical battery cells 210, a first frame 220, a second frame 230, a first terminal plate 240, and a first It consists of two terminal plates 250 and bolts 260.
  • the battery cells 210 are inserted into the first frame 220 and the second frame 230, and the first terminals 211 and the second terminals 212 exposed from the openings 221 and 231.
  • the first terminal plate 240 and the second terminal plate 250 are fastened to each other and are electrically connected in parallel.
  • Module terminals 222 and 232 which may be electrically connected to the first terminal plate 240 and the second terminal plate 250, respectively protrude from upper center portions of the first frame 220 and the second frame 230. have.
  • Rivet structures are formed at both sides of the upper ends of the first frame 220 and the second frame 230 to achieve fastening between the frames.
  • Rivet protrusions 223 are formed at both upper ends of the first frame 220, and the rivet protrusion grooves 233 may be inserted at both upper ends of the second frame 230. Is formed.
  • screw grooves 224 and 234 are formed in the first frame 220 and the second frame 230, and bolts 260 are inserted into the screw grooves 224 and 234. Fastening between the first frame 220 and the second frame 230 can be secured.
  • the first frame 220 and the second frame 230 are Can be fastened.
  • fastening grooves 225 and 235 for fastening with the base plate 120 are formed at both lower ends of the first frame 220 and the second frame 230, respectively. These fastening grooves 225 and 235 have a structure overlapping up and down in a state where the first frame 220 and the second frame 230 are fastened.
  • FIG. 4 shows a perspective view of the harness cover of FIG. 2.
  • the harness cover 300 includes a body 310, branches 320, voltage sensing wires 330, temperature sensing wires 340, and series wire 350. Consists of
  • the main body 310 extends in the arrangement direction of the unit modules 200, and the branches 320 branch and extend from the main body 310 in the direction of each of the unit modules 200.
  • the 310 and the branches 320 have an integrated structure, and the main body 310 and the branches 320 have a plate shape, and an outer circumferential wall 370 protruding upward from the outer circumference is formed.
  • the voltage sensing wires 330 and the temperature sensing wires 340 are fastened to the branches 320 by hooks 321 formed on the upper surfaces of the branches 320, and the voltage sensing wires 330. And at one end of the temperature sensing wires 340, the BMS connector 360 is formed to be connected to the BMS 160 of the battery module assembly 100 to transmit voltage and temperature signals.
  • a serial wire 350 is mounted on the rearmost branch 310 of the harness cover 300 to electrically connect the submodules 110 in series.
  • the battery module assembly includes a unit module equipped with a plurality of battery cells in a pair of cell frames, by arranging the unit modules to configure the sub-modules, the desired output Accordingly, the expansion and contraction of the battery module is easy, and there is an effect of providing a stable and compact structure.

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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)
  • Microelectronics & Electronic Packaging (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

The present invention provides a battery module assembly comprising unit modules in which a plurality of battery cells are mounted in a pair of cell frames, and which is electrically connected by a pair of terminal plates.

Description

서브 모듈들이 내부에 장착되어 있는 전지모듈 어셈블리Battery module assembly with sub modules mounted inside

본 발명은 서브 모듈들이 내부에 장착되어 있는 전지모듈 어셈블리에 관한 것이다.The present invention relates to a battery module assembly in which the sub modules are mounted therein.

최근, 충방전이 가능한 이차전지는 와이어리스 모바일 기기의 에너지원으로 광범위하게 사용되고 있고, 화석 연료를 사용하는 기존의 가솔린 차량, 디젤 차량 등의 대기오염 등을 해결하기 위한 방안으로 제시되고 있는 전기자동차(EV), 하이브리드 전기자동차(HEV), 플러그-인 하이브리드 전기자동차(Plug-In HEV) 등의 동력원으로서도 주목 받고 있다.Recently, rechargeable batteries capable of charging and discharging have been widely used as an energy source for wireless mobile devices, and have been proposed as solutions for air pollution of conventional gasoline vehicles and diesel vehicles that use fossil fuels. It is also attracting attention as a power source for EV), hybrid electric vehicles (HEV), and plug-in hybrid electric vehicles (Plug-In HEV).

또한, 전기를 저장해 두었다가 필요한 시점에 안정적으로 전력계통에 다시 공급해주는 전력 저장 장치에 관한 기술이 개발되고 있다. 전력 저장 장치는 전력 수요가 적을 때 에너지를 저장하고, 과부하 또는 비상시에 전력을 공급하는 장치로서, 전력 품질 및 에너지 사용 효율을 향상시키는 효과를 제공하고 있다. 특히, 가정용 전력 저장 장치 및 산업용 또는 상업용 중형 전력 저장 장치는 스마트 그리드 기술과 결부되어 시장규모가 급성장하고 있다.In addition, a technology has been developed for a power storage device that stores electricity and stably supplies it back to the power system when needed. The power storage device is a device that stores energy when power demand is low and supplies power in an overload or emergency, and provides an effect of improving power quality and energy use efficiency. In particular, household power storage devices and industrial or commercial medium power storage devices are associated with smart grid technology, and the market size is rapidly growing.

한편, 전지모듈이 소정의 장치 내지 디바이스에서 요구되는 출력 및 용량을 제공하기 위해서는, 다수의 전지셀들을 직렬 또는 병렬 방식으로 전기적으로 연결하여 전지모듈을 구성하여야 하고, 전지모듈의 용량이 커질수록 확장성이 용이하고 안정적인 구조를 유지할 수 있어야 한다.On the other hand, in order for a battery module to provide the output and capacity required by a predetermined device or device, the battery module must be electrically connected in a series or parallel manner to configure the battery module, and as the capacity of the battery module increases, It should be easy to maintain and stable structure.

이 같은 전지모듈을 구성하는 전지셀은, 파우치형 전지셀, 각형 전지셀 또는 원통형 전지셀을 들 수 있다. 이들 전지셀 중 원통형 전지셀로 전지모듈을 구성하는 경우에는, 원통형 전지셀을 적층하여 전지모듈을 구성하는 구조에 있어서, 상대적으로 각형 전지셀 또는 파우치형 전지셀에 비해 구조적 불안정성을 갖게 된다.Examples of the battery cell constituting the battery module include a pouch type battery cell, a square battery cell or a cylindrical battery cell. When the battery module is composed of cylindrical battery cells among these battery cells, in the structure of stacking the cylindrical battery cells to form the battery module, the structural instability is relatively higher than that of the rectangular battery cell or the pouch battery cell.

따라서, 이러한 문제점을 근본적으로 해결할 수 있는 기술에 대한 필요성이 높은 실정이다.Therefore, there is a high need for a technology that can fundamentally solve these problems.

본 발명은 상기와 같은 종래기술의 문제점과 과거로부터 요청되어온 기술적 과제를 해결하는 것을 목적으로 한다.The present invention aims to solve the problems of the prior art as described above and the technical problems that have been requested from the past.

구체적으로 본 발명의 목적은, 소망하는 출력에 따라 전지모듈의 확장 및 축소가 용이하고, 구조적으로 안정적이며 콤팩트한 전지모듈 어셈블리를 제공하는 것이다.Specifically, it is an object of the present invention to provide a battery module assembly which is easy to expand and contract the battery module in accordance with a desired output, and is structurally stable and compact.

이러한 목적을 달성하기 위한 본 발명에 따른 전지모듈 어셈블리는,Battery module assembly according to the present invention for achieving this object,

복수의 전지셀들이 한 쌍의 셀 프레임들에 장착된 상태로 한 쌍의 단자 플레이트들에 의해 전기적으로 연결되어 구성되는 단위모듈들을 포함하고 있는 전지모듈 어셈블리로서, A battery module assembly including unit modules configured to be electrically connected by a pair of terminal plates while a plurality of battery cells are mounted on a pair of cell frames,

상기 다수의 단위모듈들이 전기적으로 연결된 상태로 전지셀의 전극 단자 방향으로 배열되어 구성되어 있고, 상호 이격된 상태로 측면 방향으로 배열되어 있는 둘 이상의 서브모듈들(Sub-Modules);Two or more sub-modules (Sub-Modules) are arranged in the direction of the electrode terminal of the battery cell in the state in which the plurality of unit modules are electrically connected, arranged in the lateral direction spaced apart from each other;

통신단자들이 일측에 형성되어 있고, 상기 서브모듈들 사이의 이격된 공간에 장착되는 BMS(Battery Management System);A communication terminal is formed at one side, and is mounted in a spaced space between the sub-modules BMS (Battery Management System);

상기 서브모듈들 및 BMS가 탑재되는 베이스 플레이트(Base Plate);A base plate on which the submodules and the BMS are mounted;

상기 서브모듈들 및 하기 하니스 커버(Harness Cover)를 내장한 상태에서 서브모듈들 및 베이스 플레이트와 체결 결합되는 상부 커버 플레이트(Cover Plate);A cover plate coupled to the sub-modules and the base plate in a state in which the sub-modules and the harness cover are embedded;

상기 베이스 플레이트의 전면에 장착되고, 베이스 플레이트 및 커버 플레이트에 결합되며, 양단에 입출력 단자가 형성되어 있고, 상기 입출력 단자에 릴레이(Relay) 및 퓨즈(Fuse)가 전기적으로 연결되어 있는 전면 커버 플레이트(Front Cover Plate); 및A front cover plate mounted on the front surface of the base plate, coupled to the base plate and the cover plate, and having input and output terminals at both ends thereof, and having a relay and a fuse electrically connected to the input and output terminals; Front cover plate); And

상기 다수의 전지셀들로부터 전압 및 온도를 측정할 수 있도록, 상기 서브모듈들 상면에 장착되어 있는 하니스 커버;A harness cover mounted on an upper surface of the submodules to measure voltage and temperature from the plurality of battery cells;

를 포함하고 있을 수 있다. It may include.

즉, 본 발명에 따른 전지모듈 어셈블리는, 한 쌍의 셀 프레임들에 복수의 전지셀들을 장착한 단위모듈들을 포함하고, 단위모듈들을 배열하여 서브모듈들을 구성함으로써, 소망하는 출력에 따라 전지모듈의 확장 및 축소가 용이하며, 안정적이고 콤팩트한 구조로 이루어질 수 있다.That is, the battery module assembly according to the present invention includes a unit module having a plurality of battery cells mounted on a pair of cell frames, and by arranging the unit modules to configure the sub modules, according to the desired output of the battery module It is easy to expand and contract and can be made into a stable and compact structure.

구체적으로, 상기 전지셀은 원통형 전지셀일 수 있다.Specifically, the battery cell may be a cylindrical battery cell.

상기 단위모듈에서 전지셀들은 전기적으로 병렬 연결되어 있을 수 있다.The battery cells in the unit module may be electrically connected in parallel.

하나의 실시예에서, 상기 한 쌍의 셀 프레임들은, 전지셀들의 제 1 단자 부위가 장착되는 제 1 셀 프레임과, 전지셀들의 제 2 단자 부위가 장착되는 제 2 셀 프레임으로 이루어져 있을 수 있다. 상기 제 1 단자 부위는 양극 단자 부위 일 수 있고, 상기 제 2 단자 부위는 음극 단자 부위 일 수 있으며, 그 반대 또한 가능함은 물론이다.In one embodiment, the pair of cell frames may include a first cell frame on which the first terminal portion of the battery cells is mounted, and a second cell frame on which the second terminal portion of the battery cells is mounted. The first terminal portion may be a positive terminal portion, the second terminal portion may be a negative terminal portion, and vice versa.

또한, 상기 제 1 셀 프레임과 제 2 셀 프레임에는, 원통형 전지셀의 제 1 단자와 제 2 단자가 노출되는 개구들이 천공되어 있을 수 있다. 상기 개구들은 원통형 전지셀에 대응하는 형상으로 이루어져 있을 수 있다.In addition, openings in which the first terminal and the second terminal of the cylindrical battery cell are exposed may be formed in the first cell frame and the second cell frame. The openings may be formed in a shape corresponding to the cylindrical battery cell.

상기 제 1 및 제 2 셀 프레임들에 장착되어 상기 개구들을 통해 노출된 제 1 단자와 제 2 단자들은, 한 쌍의 단자 플레이트들에 의해 접속될 수 있다.First and second terminals mounted to the first and second cell frames and exposed through the openings may be connected by a pair of terminal plates.

상기 단자 플레이트들은, 전지셀들의 제 1 단자에 접속되는 제 1 단자 플레이트와, 전지셀들의 제 2 단자에 접속되는 제 2 단자 플레이트로 이루어져 있을 수 있고, 이들 각각의 단자 플레이트들은, 전지셀들의 전극단자들에 접속된 상태로, 셀 프레임들의 외면에 장착되어 있을 수 있다. The terminal plates may comprise a first terminal plate connected to the first terminal of the battery cells, and a second terminal plate connected to the second terminal of the battery cells, each of the terminal plates being an electrode of the battery cells. In a state connected to the terminals, it may be mounted on the outer surfaces of the cell frames.

상기 제 1 및 제 2 단자 플레이트들은 상기 제 1 및 제 2 단자들 각각에 저항 용접에 의해 결합되어 있을 수 있다.The first and second terminal plates may be coupled to each of the first and second terminals by resistance welding.

상기 제 1 및 제 2 셀 프레임의 상단 중앙 부위에는 모듈 단자가 각각형성되어 있을 수 있고, 상기 단자 플레이트들은 상기 모듈 단자에 전기적으로 접촉될 수 있도록, 단자 플레이트 상단의 일부가 모듈 단자 방향으로 연장되어 있을 수 있다.Module terminals may be respectively formed at upper center portions of the first and second cell frames, and the terminal plates may be partially extended in the direction of the module terminals so that the terminal plates may be in electrical contact with the module terminals. There may be.

상기와 같은 단위모듈들을 전지셀의 전극단자 방향으로 배열하여 서브모듈들을 구성하는 경우, 전열의 단위모듈의 제 2 셀 프레임과 후열의 단위모듈의 제 1 셀 프레임이 인접하고, 각각의 셀 프레임들의 모듈 단자에 버스 바가 결합되어, 상기 서브모듈에서 상기 단위모듈들은 전기적으로 직렬 연결되어 있을 수 있다.When the above-described unit modules are arranged in the direction of the electrode terminal of the battery cell to configure the sub-modules, the second cell frame of the unit module in the front row and the first cell frame of the unit module in the rear row are adjacent to each other A bus bar may be coupled to a module terminal, and the unit modules may be electrically connected in series in the sub module.

상기 하니스 커버는, 서브모듈들을 전기적으로 연결하는 것과 동시에, 단위모듈들 각각의 전압 및 온도를 측정할 수 있다.The harness cover may measure the voltage and temperature of each unit module at the same time as electrically connecting the submodules.

구체적으로, 상기 하니스 커버는, 단위모듈들의 배열 방향으로 연장되어 형성되어 있는 전기절연성의 본체(body), 상기 본체로부터 단위모듈들 각각의 방향으로 분지되어 연장되어 있는 전기절연성의 브랜치들(branches), 상기 본체 및 브랜치들 각각의 상면에 장착되어 있는 전압 센싱 와이어들(voltage sensing wire) 및 상기 브랜치들 중의 중앙 브랜치들의 상면에 장착되어 있는 온도 센싱 와이어들(temperature sensing wire)을 포함하고 있을 수 있다.Specifically, the harness cover may include an electrically insulating body extending in an arrangement direction of the unit modules, and electrically insulating branches extending branched from the body in the direction of each of the unit modules. And voltage sensing wires mounted on an upper surface of each of the main body and the branches, and temperature sensing wires mounted on an upper surface of the central branches of the branches. .

또한, 상기 하니스 커버는, 상기 서브모듈들을 직렬 연결할 수 있도록, 상기 브랜치들 중의 하나에는 직렬 와이어가 추가로 장착되어 있을 수 있다.In addition, the harness cover may be further provided with a series wire in one of the branches so that the submodules can be connected in series.

따라서, 서브모듈들은 하니스 커버에 의해 직렬 및/또는 병렬 연결되어 있을 수 있다.Thus, the submodules may be connected in series and / or in parallel by a harness cover.

한편, 상기 전면 커버 플레이트에는 BMS의 통신단자들에 대응하는 제 1 관통홈들이 형성되어 있고, 상기 통신단자들은 제 1 관통홈을 통해 전면 커버 플레이트로부터 돌출되어 있을 수 있다.The front cover plate may have first through holes corresponding to the communication terminals of the BMS, and the communication terminals may protrude from the front cover plate through the first through grooves.

또한, 상기 전면 플레이트에는 퓨즈에 대응하는 제 2 관통홈이 형성되어 있고, 상기 제 2 관통홈에는 퓨즈 커버가 장착되어 있을 수 있다. 이와 같은 구조로 인해, 과전류로 소모된 퓨즈는 상기 퓨즈 커버를 통해 손쉽게 교체될 수 있다.In addition, a second through hole corresponding to the fuse may be formed in the front plate, and the fuse cover may be mounted in the second through groove. Due to this structure, the fuse consumed by the overcurrent can be easily replaced through the fuse cover.

본 발명의 하나의 실시예에 따른 베이스 플레이트에는, 단위모듈들이 슬라이딩 장착될 수 있도록 레일 구조가 형성되어 있고, 상기 셀 프레임과 체결될 수 있도록 제 1 체결홈들이 형성되어 있을 수 있다.In the base plate according to an embodiment of the present invention, a rail structure may be formed to allow the unit modules to be slidingly mounted, and first fastening grooves may be formed to be fastened to the cell frame.

상기 레일 구조는, 베이스 플레이트의 상면에 전지셀의 전극 단자 방향으로 가이드 레일이 형성되어 있는 구조일 수 있다. 또한, 상기 단위모듈들의 하단에는, 베이스 플레이트 상에 장착될 수 있도록, 상기 가이드 레일의 형상에 대응하는 구조의 레일 홈이 형성되어 있을 수 있다.The rail structure may be a structure in which a guide rail is formed on an upper surface of a base plate in an electrode terminal direction of a battery cell. In addition, a rail groove having a structure corresponding to the shape of the guide rail may be formed at the lower ends of the unit modules so as to be mounted on the base plate.

상기 셀 프레임의 양측 하단에는 나사홈이 돌출되어 형성되어 있을 수 있고, 상기 셀 프레임과 베이스 플레이트는 상기 나사홈과 볼트 또는 볼트-너트에 의해 체결되어 있을 수 있다.Screw grooves may protrude from lower ends of both sides of the cell frame, and the cell frame and the base plate may be fastened by the screw groove and the bolt or the bolt-nut.

상기 상부 커버 플레이트에는 셀 프레임과 체결될 수 있도록 제 2 체결홈들이 형성되어 있을 수 있다. 상기 셀 프레임의 상단에는 상기 제 2 체결홈들에 대응하는 형상의 나사홈이 형성되어 있을 수 있다.Second upper fastening grooves may be formed in the upper cover plate to be fastened to the cell frame. A screw groove having a shape corresponding to the second fastening grooves may be formed at an upper end of the cell frame.

따라서, 상기 셀 프레임과 상부 커버 플레이트는 상기 나사홈과 볼트 또는 볼트-너트에 의해 체결되어 있을 수 있다.Therefore, the cell frame and the upper cover plate may be fastened by the screw groove and the bolt or bolt-nut.

본 발명의 하나의 실시예에 따른 BMS는, 육면체 구조로 이루어져 있을 수 있고, 육면 중 일 면의 상단과 하단에 각각 통신단자들이 돌출되어 있을 수 있다.The BMS according to one embodiment of the present invention may have a hexahedral structure, and communication terminals may protrude from the top and bottom of one side of the six sides.

상기 하니스 커버는, 상기한 바와 같이, 단위모듈들의 전압을 측정하는 전압 센싱 와이어들 및 단위모듈들의 온도를 측정하는 온도 센싱 와이어들을 포함하고, 상기 BMS는 하니스 커버의 전압 센싱 와이어들 및 온도 센싱 와이어들과 전기적으로 연결되어 있을 수 있다.The harness cover includes, as described above, voltage sensing wires for measuring the voltage of the unit modules and temperature sensing wires for measuring the temperature of the unit modules, and the BMS includes voltage sensing wires and temperature sensing wires of the harness cover. It may be electrically connected to the field.

본 발명은 또한 상기 전지모듈 어셈블리를 포함하는 전지팩을 제공한다.The present invention also provides a battery pack including the battery module assembly.

본 발명은 또한 상기 전지팩을 전원으로 포함하는 디바이스를 제공하고, 상기 디바이스는 구체적으로, 가정용 전원장치, 공공시설 전원장치, 대형상점용 전원장치, 비상용 전원장치, 전산실 전원장치, 휴대용 전원장치, 의료설비 전원장치, 소화설비 전원장치, 경보설비 전원장치, 피난설비 전원장치, 전기자동차, 하이브리드 전기자동차, 또는 플러그-인 하이브리드 전기자동차일 수 있다.The present invention also provides a device including the battery pack as a power source, and the device is specifically, a home power supply, a utility power supply, a large store power supply, an emergency power supply, a computer room power supply, a portable power supply, It may be a medical equipment power supply, a fire extinguishing power supply, an alarm power supply, an evacuation power supply, an electric vehicle, a hybrid electric vehicle, or a plug-in hybrid electric vehicle.

이러한 디바이스의 구조 및 제작 방법은 당업계에 공지되어 있으므로, 본 명세서에서는 그에 대한 자세한 설명을 생략한다.Since the structure and fabrication method of such a device are known in the art, detailed description thereof will be omitted herein.

도 1은 본 발명의 하나의 실시예에 따른 전지모듈 어셈블리의 사시도이다;1 is a perspective view of a battery module assembly according to an embodiment of the present invention;

도 2는 도 1의 상부 커버 플레이트가 제거된 전지모듈 어셈블리의 사시도이다;2 is a perspective view of the battery module assembly with the upper cover plate of Figure 1 removed;

도 3은 도 2의 단위모듈의 사시도이다;3 is a perspective view of the unit module of FIG. 2;

도 4는 도 2의 하니스 커버의 사시도이다.4 is a perspective view of the harness cover of FIG. 2.

이하에서는, 본 발명의 실시예에 따른 도면을 참조하여 설명하지만, 이는 본 발명의 더욱 용이한 이해를 위한 것으로, 본 발명의 범주가 그것에 의해 한정되는 것은 아니다.Hereinafter, although described with reference to the drawings according to an embodiment of the present invention, this is for easier understanding of the present invention, the scope of the present invention is not limited thereto.

도 1에는 본 발명의 하나의 실시예에 따른 전지모듈 어셈블리의 사시도가 도시되어 있고, 도 2에는 도 1의 상부 커버 플레이트가 제거된 전지모듈 어셈블리의 사시도가 도시되어 있다.1 is a perspective view of a battery module assembly according to an embodiment of the present invention, Figure 2 is a perspective view of the battery module assembly with the upper cover plate of Figure 1 is removed.

도 1 및 도 2를 참조하면, 전지모듈 어셈블리(100)는 서브모듈들(110), 베이스 플레이트(120), 전면 커버 플레이트(130), 후면 커버 플레이트(140), 상부 커버 플레이트(150), BMS(160), 릴레이(도시하지 않음), 퓨즈(도시하지 않음) 및 하니스 커버(300)로 이루어져 있다.1 and 2, the battery module assembly 100 includes sub-modules 110, a base plate 120, a front cover plate 130, a rear cover plate 140, an upper cover plate 150, BMS 160, relay (not shown), fuse (not shown) and harness cover 300.

서브모듈들(110)은 복수의 단위모듈들(200)을 전지셀 전극단자 방향으로 배열한 상태에서 전기적으로 연결하여 이루어져 있고, 상호 측면 방향으로 이격된 상태에서 베이스 플레이트(120) 상에 장착되어 있다. The sub-modules 110 are electrically connected in a state in which the plurality of unit modules 200 are arranged in the direction of the battery cell electrode terminals, and are mounted on the base plate 120 in a state in which the sub-modules 200 are spaced apart from each other. have.

이 같은 서브모듈들(110)은 서브모듈들(110)의 상면에 장착되어 있는 하니스 커버(300)의 최후단 브랜치(320)에 장착되어 있는 직렬 와이어(350)에 의해 전기적으로 직렬 연결되어 있다.These submodules 110 are electrically connected in series by a series wire 350 mounted on the rearmost branch 320 of the harness cover 300 mounted on the upper surfaces of the submodules 110. .

전면 커버 플레이트(130)의 양단에는 입출력 단자들(133)이 형성되어 있고, 중앙 부위에는 제 1 관통홈(131)이 형성되어 있으며, 제 1 관통홈(131)의 좌측에는 퓨즈 커버(181)가 장착될 수 있도록, 제 2 관통홈(도시하지 않음)이 형성되어 있다.Input and output terminals 133 are formed at both ends of the front cover plate 130, and a first through hole 131 is formed at a central portion thereof, and a fuse cover 181 is disposed at a left side of the first through hole 131. A second through groove (not shown) is formed so that the can be mounted.

서브모듈들(110)과 입출력 단자들(133)은 그 사이에 릴레이(도시하지 않음) 및 퓨즈(도시하지 않음)가 개재된 상태로 전기적으로 연결된다.The submodules 110 and the input / output terminals 133 are electrically connected to each other with a relay (not shown) and a fuse (not shown) interposed therebetween.

BMS(160)는 육면체 구조로 이루어져 있고, 서브모듈들(110) 사이의 이격된 공간에 장착되어 있으며, BMS(160)의 전면 상단과 하단에는 각각 통신단자들(161)이 형성되어, 전면 커버 플레이트(130)의 제 1 관통홈들(131)로부터 돌출되어 있다.The BMS 160 has a hexahedral structure, and is mounted in spaced spaces between the sub-modules 110, and communication terminals 161 are formed at the top and bottom surfaces of the BMS 160, respectively, and the front cover is provided. It protrudes from the first through holes 131 of the plate 130.

BMS(160)는, 하니스 커버(300)의 단위모듈들(200)의 전압 및 온도를 측정하는 전압 센싱 와이어(372) 및 온도 센싱 와이어(373)들과 전기적으로 연결되어 있다.The BMS 160 is electrically connected to the voltage sensing wire 372 and the temperature sensing wire 373 that measure the voltage and temperature of the unit modules 200 of the harness cover 300.

서브모듈들(110) 및 BMS(160)는 베이스 플레이트(120) 상에 탑재되어 있고, 상기 베이스 플레이트(120)의 전면에는 베이스 플레이트(120) 및 상부 커버 플레이트(150)와 결합되는 전면 커버 플레이트(130)가 장착되어 있다.The submodules 110 and the BMS 160 are mounted on the base plate 120, and the front cover plate coupled to the base plate 120 and the upper cover plate 150 on the front of the base plate 120. 130 is mounted.

베이스 플레이트(120)의 상면에는 단위모듈들(200)이 슬라이딩 장착될 수 있도록 가이드 레일(121)이 형성되어 있고, 단위모듈들(200)과 체결될 수 있도록 제 1 체결홈들(도시하지 않음)이 형성되어 있다. 또한, 단위모듈들(200)의 하단에는, 베이스 플레이트(120) 상에 장착될 수 있도록, 상기 가이드 레일(121)의 형상에 대응하는 구조의 레일 홈(도시하지 않음)이 형성되어 있다. 상부 커버 플레이트(150)에는 단위모듈들(200)과 체결될 수 있도록 제 2 체결홈들(151)이 형성되어 있다.Guide rails 121 are formed on the upper surface of the base plate 120 to allow the unit modules 200 to be slidably mounted, and first fastening grooves (not shown) to be fastened to the unit modules 200. ) Is formed. In addition, a rail groove (not shown) having a structure corresponding to the shape of the guide rail 121 is formed at the lower end of the unit modules 200 to be mounted on the base plate 120. Second fastening grooves 151 are formed in the upper cover plate 150 to be fastened to the unit modules 200.

도 3에는 도 2의 단위모듈의 사시도가 모식적으로 도시되어 있다.3 is a perspective view schematically illustrating the unit module of FIG. 2.

도 3을 도 1 및 2와 함께 참조하면, 단위모듈(200)은 복수의 원통형 전지셀(210), 제 1 프레임(220), 제 2 프레임(230), 제 1 단자 플레이트(240), 제 2 단자 플레이트(250) 및 볼트들(260)로 이루어져 있다.Referring to FIG. 3 together with FIGS. 1 and 2, the unit module 200 includes a plurality of cylindrical battery cells 210, a first frame 220, a second frame 230, a first terminal plate 240, and a first It consists of two terminal plates 250 and bolts 260.

제 1 프레임(220) 및 제 2 프레임(230)에는 전지셀들(210)의 제 1 단자(211) 및 제 2 단자(212)가 노출될 수 있도록, 전지셀들(210)에 대응하는 형상의 개구들(221, 231)이 형성되어 있다.Shapes corresponding to the battery cells 210 so that the first terminal 211 and the second terminal 212 of the battery cells 210 may be exposed in the first frame 220 and the second frame 230. Openings 221 and 231 are formed.

전지셀들(210)은 제 1 프레임(220) 및 제 2 프레임(230)에 삽입된 상태에서, 개구들(221, 231)로부터 노출된 제 1 단자들(211) 및 제 2 단자들(212)에는 각각 제 1 단자 플레이트(240) 및 제 2 단자 플레이트(250)가 체결되어 전기적으로 병렬 연결된다.The battery cells 210 are inserted into the first frame 220 and the second frame 230, and the first terminals 211 and the second terminals 212 exposed from the openings 221 and 231. The first terminal plate 240 and the second terminal plate 250 are fastened to each other and are electrically connected in parallel.

제 1 프레임(220) 및 제 2 프레임(230)의 상단 중앙 부위에는 제 1 단자 플레이트(240) 및 제 2 단자 플레이트(250) 각각에 전기적으로 연결될 수 있는 모듈 단자(222, 232)가 돌출되어 있다.Module terminals 222 and 232, which may be electrically connected to the first terminal plate 240 and the second terminal plate 250, respectively protrude from upper center portions of the first frame 220 and the second frame 230. have.

제 1 프레임(220) 및 제 2 프레임(230)의 상단 양측 부위에는 프레임간의 체결을 달성하기 위해 리벳 구조가 형성되어 있다. 제 1 프레임(220)의 상단 양측 부위에는 리벳 돌출부(223)가 형성되어 있고, 제 2 프레임(230)의 상단 양측 부위에는 상기 리벳 돌출부(223)가 삽입될 수 있도록, 리벳 체결홈(233)이 형성되어 있다.Rivet structures are formed at both sides of the upper ends of the first frame 220 and the second frame 230 to achieve fastening between the frames. Rivet protrusions 223 are formed at both upper ends of the first frame 220, and the rivet protrusion grooves 233 may be inserted at both upper ends of the second frame 230. Is formed.

또한, 상기 제 1 프레임(220) 및 제 2 프레임(230)에는 나사홈들(224, 234)이 각각 형성되어 있고, 이들 나사홈들(224, 234)에 볼트들(260)이 삽입되어, 제 1 프레임(220)과 제 2프레임(230)간의 체결을 공고히 할 수 있다.In addition, screw grooves 224 and 234 are formed in the first frame 220 and the second frame 230, and bolts 260 are inserted into the screw grooves 224 and 234. Fastening between the first frame 220 and the second frame 230 can be secured.

상기와 같은 구조에 의해, 복수의 단위모듈들(200)을 전지셀의 전극단자 방향으로 배열하여 서브모듈(110)을 구성하는 경우에, 제 1 프레임(220)과 제 2 프레임(230)은 체결될 수 있다.By the above structure, when the plurality of unit modules 200 are arranged in the direction of the electrode terminal of the battery cell to configure the sub module 110, the first frame 220 and the second frame 230 are Can be fastened.

또한, 상기 제1 프레임(220) 및 제 2 프레임(230)의 하단 양측부에는 베이스 플레이트(120)와의 체결을 위한 체결홈들(225, 235)이 각각 형성되어 있다. 이들 체결홈들(225, 235)은 제1 프레임(220) 및 제 2 프레임(230)이 체결된 상태에서, 상하로 중첩되는 구조로 이루어져 있다.In addition, fastening grooves 225 and 235 for fastening with the base plate 120 are formed at both lower ends of the first frame 220 and the second frame 230, respectively. These fastening grooves 225 and 235 have a structure overlapping up and down in a state where the first frame 220 and the second frame 230 are fastened.

도 4에는 도 2의 하니스 커버의 사시도가 도시되어 있다.4 shows a perspective view of the harness cover of FIG. 2.

도 4를 도 1 및 3과 함께 참조하면, 하니스 커버(300)는 본체(310), 브랜치들(320), 전압 센싱 와어이들(330), 온도 센싱 와이어들(340) 및 직렬 와이어(350)로 이루어져 있다.Referring to FIG. 4 together with FIGS. 1 and 3, the harness cover 300 includes a body 310, branches 320, voltage sensing wires 330, temperature sensing wires 340, and series wire 350. Consists of

본체(310)는 단위모듈들(200)의 배열 방향으로 연장되어 형성되어 있고, 브랜치들(320)은 본체(310)로부터 단위모듈들(200) 각각의 방향으로 분지되어 연장되어 있으며, 본체(310) 및 브랜치들(320)은 일체화된 구조로 이루어져 있고, 본체(310) 및 브랜치들(320)은 플레이트 형상으로 이루어져 있으며 외주부에 상향 돌출된 외주벽(370)이 형성되어 있다.The main body 310 extends in the arrangement direction of the unit modules 200, and the branches 320 branch and extend from the main body 310 in the direction of each of the unit modules 200. The 310 and the branches 320 have an integrated structure, and the main body 310 and the branches 320 have a plate shape, and an outer circumferential wall 370 protruding upward from the outer circumference is formed.

전압 센싱 와이어들(330) 및 온도 센싱 와이어들(340)은 브랜치들(320)의 상면에 형성되어 있는 후크(321)에 의해 브랜치들(320)에 체결되어 있고, 전압 센싱 와이어들(330) 및 온도 센싱 와이어들(340)의 일측 단부에는, 전지모듈 어셈블리(100)의 BMS(160)와 연결되어 전압 및 온도 신호를 전송할 수 있도록, BMS 커넥터(360)가 형성되어 있다.The voltage sensing wires 330 and the temperature sensing wires 340 are fastened to the branches 320 by hooks 321 formed on the upper surfaces of the branches 320, and the voltage sensing wires 330. And at one end of the temperature sensing wires 340, the BMS connector 360 is formed to be connected to the BMS 160 of the battery module assembly 100 to transmit voltage and temperature signals.

또한, 하니스 커버(300)의 최후단 브랜치(310)에는 서브모듈들(110)을 전기적으로 직렬 연결할 수 있도록, 직렬 와이어(350)가 장착되어 있다.In addition, a serial wire 350 is mounted on the rearmost branch 310 of the harness cover 300 to electrically connect the submodules 110 in series.

본 발명이 속하는 분야에서 통상의 지식을 가진 자라면 상기 내용을 바탕으로 본 발명의 범주내에서 다양한 응용 및 변형을 가하는 것이 가능할 것이다.Those skilled in the art to which the present invention pertains will be able to add various applications and modifications within the scope of the present invention based on the above contents.

이상에서 설명한 바와 같이, 본 발명에 따른 전지모듈 어셈블리는, 한 쌍의 셀 프레임들에 복수의 전지셀들을 장착한 단위모듈들을 포함하고, 단위모듈들을 배열하여 서브모듈들을 구성함으로써, 소망하는 출력에 따라 전지모듈의 확장 및 축소가 용이하며, 안정적이고 콤팩트한 구조를 제공하는 효과가 있다. As described above, the battery module assembly according to the present invention includes a unit module equipped with a plurality of battery cells in a pair of cell frames, by arranging the unit modules to configure the sub-modules, the desired output Accordingly, the expansion and contraction of the battery module is easy, and there is an effect of providing a stable and compact structure.

Claims (20)

복수의 전지셀들이 한 쌍의 셀 프레임들에 장착된 상태로 한 쌍의 단자 플레이트들에 의해 전기적으로 연결되어 구성되는 단위모듈들을 포함하고 있는 전지모듈 어셈블리로서, A battery module assembly including unit modules configured to be electrically connected by a pair of terminal plates while a plurality of battery cells are mounted on a pair of cell frames, 상기 다수의 단위모듈들이 전기적으로 연결된 상태로 전지셀의 전극 단자 방향으로 배열되어 구성되어 있고, 상호 이격된 상태로 측면 방향으로 배열되어 있는 둘 이상의 서브모듈들(Sub-Modules);Two or more sub-modules (Sub-Modules) are arranged in the direction of the electrode terminal of the battery cell in the state in which the plurality of unit modules are electrically connected, arranged in the lateral direction spaced apart from each other; 통신단자들이 일측에 형성되어 있고, 상기 서브모듈들 사이의 이격된 공간에 장착되는 BMS(Battery Management System);A communication terminal is formed at one side, and is mounted in a spaced space between the sub-modules BMS (Battery Management System); 상기 서브모듈들 및 BMS가 탑재되는 베이스 플레이트(Base Plate);A base plate on which the submodules and the BMS are mounted; 상기 서브모듈들 및 하기 하니스 커버(Harness Cover)를 내장한 상태에서 서브모듈들 및 베이스 플레이트와 체결 결합되는 상부 커버 플레이트(Cover Plate);A cover plate coupled to the sub-modules and the base plate in a state in which the sub-modules and the harness cover are embedded; 상기 베이스 플레이트의 전면에 장착되고, 베이스 플레이트 및 커버 플레이트에 결합되며, 양단에 입출력 단자가 형성되어 있고, 상기 입출력 단자에 릴레이(Relay) 및 퓨즈(Fuse)가 전기적으로 연결되어 있는 전면 커버 플레이트(Front Cover Plate); 및A front cover plate mounted on the front surface of the base plate, coupled to the base plate and the cover plate, and having input and output terminals at both ends thereof, and having a relay and a fuse electrically connected to the input and output terminals; Front cover plate); And 상기 다수의 전지셀들로부터 전압 및 온도를 측정할 수 있도록, 상기 서브모듈들 상면에 장착되어 있는 하니스 커버;A harness cover mounted on an upper surface of the submodules to measure voltage and temperature from the plurality of battery cells; 를 포함하는 것을 특징으로 하는 전지모듈 어셈블리.Battery module assembly comprising a. 제 1 항에 있어서, 상기 전지셀은 원통형 전지셀인 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly according to claim 1, wherein the battery cell is a cylindrical battery cell. 제 1 항에 있어서, 상기 단위모듈에서 전지셀들은 병렬 연결되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly of claim 1, wherein the battery cells in the unit module are connected in parallel. 제 1 항에 있어서, 상기 셀 프레임들은, 전지셀들의 제 1 단자 부위가 장착되는 제 1 셀 프레임과, 전지셀들의 제 2 단자 부위가 장착되는 제 2 셀 프레임을 포함하고 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery of claim 1, wherein the cell frames include a first cell frame on which the first terminal portion of the battery cells is mounted, and a second cell frame on which the second terminal portion of the battery cells is mounted. Module assembly. 제 4 항에 있어서, 상기 제 1 셀 프레임과 제 2 셀 프레임에는 제 1 단자와 제 2 단자가 노출되기 위한 개구들이 천공되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly of claim 4, wherein openings for exposing the first terminal and the second terminal are perforated in the first cell frame and the second cell frame. 제 1 항에 있어서, 상기 단자 플레이트들은, 전지셀들의 제 1 단자에 접속되는 제 1 단자 플레이트와, 전지셀들의 제 2 단자에 접속되는 제 2 단자 플레이트를 포함하고 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly of claim 1, wherein the terminal plates include a first terminal plate connected to a first terminal of battery cells, and a second terminal plate connected to a second terminal of battery cells. . 제 1 항에 있어서, 상기 단자 플레이트들은, 전지셀들의 전극단자들에 접속된 상태로, 셀 프레임들의 외면에 장착되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly of claim 1, wherein the terminal plates are mounted on outer surfaces of the cell frames while being connected to electrode terminals of the battery cells. 제 1 항에 있어서, 상기 서브모듈에서 단위모듈들은 직렬 연결되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly according to claim 1, wherein the unit modules in the sub module are connected in series. 제 1 항에 있어서, 상기 서브모듈들은 하니스 커버에 의해 직렬 및/또는 병렬 연결되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly of claim 1, wherein the submodules are connected in series and / or in parallel by a harness cover. 제 1 항에 있어서, 상기 전면 커버 플레이트에는 통신단자들에 대응하는 제 1 관통홈들이 형성되어 있고, 상기 통신단자들은 제 1 관통홈을 통해 전면 커버 플레이트로부터 돌출되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly of claim 1, wherein the front cover plate has first through grooves corresponding to the communication terminals, and the communication terminals protrude from the front cover plate through the first through grooves. . 제 1 항에 있어서, 상기 전면 커버 플레이트에는 퓨즈에 대응하는 제 2 관통홈이 형성되어 있고, 상기 제 2 관통홈에는 퓨즈 커버가 장착되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly of claim 1, wherein a second through hole corresponding to the fuse is formed in the front cover plate, and a fuse cover is mounted in the second through hole. 제 1 항에 있어서, 상기 베이스 플레이트에는, 단위모듈들이 슬라이딩 장착될 수 있도록 레일 구조가 형성되어 있고, 상기 셀 프레임과 체결될 수 있도록 제 1 체결홈들이 형성되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly of claim 1, wherein a rail structure is formed on the base plate so that the unit modules can be slidably mounted, and first fastening grooves are formed to be fastened to the cell frame. 제 1 항에 있어서, 상기 셀 프레임과 베이스 플레이트는 볼트 또는 볼트-너트에 의해 체결되는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly of claim 1, wherein the cell frame and the base plate are fastened by bolts or bolt-nuts. 제 12 항에 있어서, 상기 커버 플레이트에는 셀 프레임과 체결될 수 있도록 제 2 체결홈들이 형성되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly according to claim 12, wherein the cover plate has second fastening grooves formed therein so as to be fastened to the cell frame. 제 14 항에 있어서, 상기 셀 프레임과 커버 플레이트는 볼트 또는 볼트-너트에 의해 체결되는 것을 특징으로 하는 전지모듈 어셈블리.15. The battery module assembly of claim 14, wherein the cell frame and the cover plate are fastened by bolts or bolt-nuts. 제 1 항에 있어서, 상기 BMS는 육면체 구조로 이루어져 있고, 육면 중 일 면의 상단과 하단에 각각 통신단자들이 돌출되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The battery module assembly according to claim 1, wherein the BMS has a hexahedron structure, and communication terminals protrude from upper and lower ends of one surface of the six surfaces. 제 16 항에 있어서, 상기 하니스 커버는 단위모듈들의 전압을 측정하는 전압 센싱 와이어들 및 단위모듈들의 온도를 측정하는 온도 센싱 와이어들을 포함하고, 상기 BMS는 하니스 커버의 전압 센싱 와이어들 및 온도 센싱 와이어들과 전기적으로 연결되어 있는 것을 특징으로 하는 전지모듈 어셈블리.The harness cover of claim 16, wherein the harness cover includes voltage sensing wires measuring voltage of unit modules and temperature sensing wires measuring temperature of unit modules, and the BMS includes voltage sensing wires and temperature sensing wires of the harness cover. Battery module assembly characterized in that it is electrically connected with the. 제 1 항 내지 제 17 항 중 어느 하나에 따른 전지모듈 어셈블리를 포함하는 것을 특징으로 하는 전지팩.A battery pack comprising a battery module assembly according to any one of claims 1 to 17. 제 18 항에 따른 전지팩을 포함하는 것을 특징으로 디바이스.A device comprising a battery pack according to claim 18. 제 19 항에 있어서, 상기 디바이스는 가정용 전원장치, 공공시설 전원장치, 대형상점용 전원장치, 비상용 전원장치, 전산실 전원장치, 휴대용 전원장치, 의료설비 전원장치, 소화설비 전원장치, 경보설비 전원장치, 피난설비 전원장치, 전기자동차, 하이브리드 전기자동차, 또는 플러그-인 하이브리드 전기자동차인 것을 특징으로 하는 디바이스.20. The apparatus of claim 19, wherein the device is a domestic power supply, a utility power supply, a large store power supply, an emergency power supply, a computer room power supply, a portable power supply, a medical supply, a fire extinguishing supply, an alarm supply. Device for evacuation facility power supply, electric vehicle, hybrid electric vehicle, or plug-in hybrid electric vehicle.
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KR20150076913A (en) 2015-07-07
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JP6219519B2 (en) 2017-10-25
CN105745781B (en) 2018-09-21
CN105745781A (en) 2016-07-06

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