WO2021177756A1 - 이동 및 조립이 편의성이 증대된 구조 및 안전성이 향상된 구조를 갖는 배터리 팩 - Google Patents
이동 및 조립이 편의성이 증대된 구조 및 안전성이 향상된 구조를 갖는 배터리 팩 Download PDFInfo
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- WO2021177756A1 WO2021177756A1 PCT/KR2021/002704 KR2021002704W WO2021177756A1 WO 2021177756 A1 WO2021177756 A1 WO 2021177756A1 KR 2021002704 W KR2021002704 W KR 2021002704W WO 2021177756 A1 WO2021177756 A1 WO 2021177756A1
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- battery pack
- battery
- bms
- assembly
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- 238000000034 method Methods 0.000 claims abstract 13
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims 2
- 238000004146 energy storage Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M50/256—Carrying devices, e.g. belts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M50/514—Methods for interconnecting adjacent batteries or cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
- H01M2200/103—Fuse
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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 pack having a structure with increased ease of movement and assembly and a structure with improved safety, and more specifically, a structure and an interior in which a plurality of battery modules are fastened using a module fastening plate and a BMS assembly It relates to a battery pack having a structure that can prevent the flame from leaking to the outside of the battery pack when a flame is generated in the battery cell of the battery pack.
- a battery pack used as an energy storage device is a type of energy storage device configured to remove the risk of use due to external physical factors and to function properly in consideration of an installation environment and usage conditions.
- a battery pack used as such an energy storage device may have a form in which a plurality of battery modules and a BMS assembly electrically connected to the battery modules are combined.
- battery packs used as such energy storage devices in particular, household battery packs often have to move through narrow stairs and/or passages. Since the battery pack used as an energy storage device has a relatively large volume and a relatively heavy weight in many cases, it should be made in consideration of ease of movement and installation. In addition, since a battery pack used as an energy storage device includes a plurality of battery cells to ensure sufficient capacity and output, it needs to be designed so that user safety can be ensured when an abnormality occurs during use. .
- An object of the present invention is to provide a battery pack structure capable of securing convenience of movement and installation, and safety in use, as devised in consideration of the above-described technical problems.
- a battery pack comprising: a pair of battery modules having at least one pair of first grip grooves and at least one connector formed at an upper end; a supporting plate coupled to the lower end of the pair of battery modules and fixed to the ground; a BMS assembly having a guide protrusion inserted into the first grip groove and coupled to the pair of battery modules in a plug-in type through the connector; includes
- the battery module may include: a cell stack including a plurality of battery cells; a module housing for accommodating the cell stack; a lower cover covering the lower opening of the module housing; and an upper cover assembly covering the upper opening of the module housing.
- the upper cover assembly may include: an upper cover covering the upper opening of the module housing, the connector having the connector formed on one side in the longitudinal direction, and having an upper cover groove concave downwardly in the center thereof; a fuse fixed in the upper cover groove and electrically connected to the battery cell; a fuse cover covering the fuse in the upper cover groove; and a cover plate that covers an upper end of the upper cover groove and is coupled to the upper cover.
- the cover plate may include at least one pair of cover plate holes, and may be installed to be spaced apart from the fuse cover so that the first grip groove is formed between the cover plate and the fuse cover.
- the BMS assembly may include: a BMS body coupled to the pair of battery modules; and a BMS cover coupled to an upper portion of the BMS body.
- the battery pack may include a second grip groove formed between one and the other side of the BMS cover in the longitudinal direction and the BMS body.
- the guide protrusion may be formed on a lower surface of the BMS body and be inserted into the first grip groove through the cover plate hole to guide the coupling between the BMS assembly and the battery module.
- the battery pack may further include a gasket interposed between the guide protrusion and the inner surface of the cover plate hole.
- a gas flow path may be formed between the cell stack and the module housing.
- the lower cover may include a lower cover hole formed on both sides of the longitudinal direction and communicating with the gas passage.
- a mesh filter may be inserted into the lower cover hole.
- the lower cover may include a plurality of first partition walls extending downward.
- the supporting plate may include a plurality of second partition walls extending upwardly; and a gas discharge hole formed in the longitudinal center.
- the first partition wall and the second partition wall formed at positions corresponding to each other may cross each other.
- a battery pack structure that can secure the convenience of movement and installation, and also secure the safety in use.
- FIG. 1 is a complete perspective view of a battery pack according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the battery pack shown in FIG. 1 .
- FIG 3 is an exploded perspective view of a battery module applied to the present invention.
- FIG. 4 is a view showing a cross-section taken along the line X-X of FIG. 2 .
- FIG. 5 is a view showing a cross-section taken along the Y-Y line of FIG. 2 .
- FIG. 6 is a diagram illustrating a coupling relationship between a pair of battery modules and a BMS assembly applied to the present invention.
- FIG. 7 is a view showing a cross-section taken along the line Z-Z of FIG. 1 .
- FIG. 8 and 9 are enlarged views illustrating area A of FIG. 7 .
- FIG. 10 is a view showing a movement path of a flame and gas generated inside the battery module.
- FIG. 11 is a view showing a cross-section taken along the Z-Z line of FIG. 1 , and is a view showing a specific structure of a coupling region between a battery module and a supporting plate.
- a battery pack 1 includes a plurality of battery modules 100 , a supporting plate 200 , and a BMS assembly 300 .
- the battery pack 1 may be, for example, an energy storage system (ESS) battery pack for energy storage.
- ESS energy storage system
- the lower end of the battery module 100 is inserted/fixed to the supporting plate 200 , and the BMS assembly 300 is coupled to the upper end of the battery module 100 .
- the supporting plate 200 may be fixed to the ground, thereby serving as a bracket for fixing the plurality of battery modules 100 .
- the ground is meant to mean a bottom surface of a place where the battery pack 1 is used for energy storage.
- the BMS assembly 300 includes at least one battery management system (BMS), and is coupled to the top of the plurality of battery modules 100 in a plug-in type to form a plurality of battery modules 100 . It is possible to control the charge/discharge of the plurality of battery modules 100 as well as enable mechanical fastening between them. In addition, the BMS assembly 300 may enable electrical connection between the plurality of battery modules 100 .
- BMS battery management system
- the coupling between the battery module 100 and the BMS assembly 300 is a first connector C1 provided on the upper surface of the battery module 100 and a second connector C2 provided on the lower surface of the BMS assembly 300 ( 7) can be achieved by a coupling between them.
- a plurality of first grip grooves G1 are formed on the upper surface of the battery module 100, and the lower surface of the BMS assembly 300 is provided with a shape and number corresponding to the first grip grooves G1.
- a plurality of guide protrusions 311 (refer to FIG. 8 ) inserted into the first grip groove G1 may be formed to guide coupling between the battery module 100 and the BMS assembly 300 .
- the battery module 100 includes a cell stack 110 , a module housing 120 , a lower cover 130 , and an upper cover assembly 140 .
- the cell stack 110 may include a plurality of battery cells electrically connected to each other, and may include additional components for mechanical coupling and/or electrical coupling between the plurality of battery cells.
- a battery cell used to configure the cell stack 110 for example, a pouch-type battery cell may be applied.
- the module housing 120 has a substantially rectangular parallelepiped shape in which openings are formed at the top and bottom, respectively, and accommodates the cell stack 110 in the inner space.
- the module housing 120 may have a form in which a front plate 121 and a rear plate 122 are combined.
- the structure of the module housing 120 is not limited thereto, and the module housing 120 may be a structure in which a plurality of pieces are integrally formed rather than combined. may have
- the lower cover 130 covers the lower opening of the module housing 120 and supports the cell stack 110 .
- the lower cover 130 has a special structure for inducing the discharge of the gas downward when the internal gas and flame are generated due to the abnormality of the battery pack 1, and also has a special structure for minimizing the external emission of the flame.
- the specific structure of the cover 130 will be described later in detail along with the specific structure of the supporting plate 200 with reference to FIGS. 10 and 11 .
- the upper cover assembly 140 covers the upper opening of the module housing 120 and prevents the gas and flame from being discharged upward when internal gas and flame are generated due to an abnormality in the battery pack 1 . ) to ensure the airtightness of the upper opening.
- the upper cover assembly 140 may include an upper cover 141 , a fuse 142 , a fuse holder 143 , a fuse cover 144 , and a cover plate 145 .
- the upper cover 141 covers the upper opening of the module housing 120 and includes a first connector C1 formed on one side in the longitudinal direction (parallel to the X axis in FIG. 3 ).
- the upper cover 141 has an upper cover groove 141a concave downwardly in the center thereof.
- the upper cover groove 141a communicates with the cell stack 110 accommodating space in the module housing 120 through a hole formed in the upper cover 141 . This is for electrical connection between the cell stack 110 accommodated in the module housing 120 and the fuse 142 installed in the cover groove 141a.
- the fuse holder 143 is fixed in the upper cover groove 141a and fixes the fuse 142 .
- a fuse holder 143 may be omitted.
- the fuse 142 is directly fixed to the inner surface of the upper cover groove 141a using an adhesive member or is inside the upper cover groove 141a. may be fixed using a fixing structure integrally formed on the upper cover 141 in the .
- the fuse cover 144 has a length and a width corresponding to that of the upper cover groove 141a and covers the fuse 142 and the fuse holder 143 in the upper cover groove 141a.
- the cover plate 145 covers the upper end of the upper cover groove 141a and is coupled to the upper cover 141 .
- the cover plate 145 has at least a pair of cover plate holes 145a, is installed to be spaced apart from the fuse cover 144, and has a first grip groove between the cover plate 145 and the fuse cover 144. (G1) is formed.
- the cover plate hole 145a and the first grip groove G1 provide a space in which an operator can grip the battery module 100 by inserting a finger or a gripping instrument when transporting the battery module 100 .
- the cover plate hole 145a and the first grip groove G1 provide an insertion space for the guide protrusion 311 (refer to FIG. 8 ) provided in the BMS assembly 300 as described above in addition to these functions. The coupling between the BMS assembly 300 and the battery module 100 may be guided.
- the guide protrusion 311 has a size and shape corresponding to the cover plate hole 145a, so that the cell stack body positioned below the upper cover assembly 140 ( When gas and/or flame are generated from 110 , it is possible to prevent gas and/or flame from leaking toward the BMS assembly 300 through the upper portion of the battery module 100 .
- a gasket 400 may be interposed between the guide protrusion 311 and the inner surface of the cover plate hole 145a. This further increases the airtightness to more reliably prevent the gas and/or flame from leaking toward the BMS assembly 300 through the upper part of the battery module 100 in case gas and/or flame are generated from the cell stack 110 . is to prevent
- the BMS assembly 300 includes a BMS body 310 and a BMS cover 320 .
- the BMS body 310 includes at least one BMS, and has at least two or more second connectors C2 electrically connected to the BMS on its lower surface.
- Each of the second connectors (C2) is coupled one-to-one with the first connector (C1) provided at the top of the plurality of battery modules 100, whereby each battery module 100 is electrically connected to the BMS .
- each of the battery modules 100 may be electrically connected to each other in series and/or in parallel.
- the BMS cover 320 is coupled to the upper portion of the BMS body 310 .
- the BMS cover 320 may function as a handle of the BMS assembly 300 . That is, one side and the other side and the upper surface of the BMS body 310 in the longitudinal direction of the BMS cover 320 (in the direction parallel to the X-axis in FIG. 5) are spaced apart from each other by a certain distance, and accordingly, the BMS cover 320.
- a second grip groove G2 is formed in each of both sides in the longitudinal direction. The second grip groove G2 provides a space for the operator to insert and grip a finger or a gripping device for moving the BMS assembly 300 and/or carrying the battery pack 1 .
- the gas generated from the cell stack 110 is smoothly discharged to the outside, and a structure capable of preventing the flame from being discharged to the outside is formed.
- the lower cover 130 includes a pair of lower cover holes 130a, a pair of mesh filters M, and a plurality of first partition walls ( 131) is provided.
- the lower cover hole 130a communicates with the gas flow path P formed between the cell stack 110 and the module housing 120 . Accordingly, the gas and/or flame generated from the cell stack 110 may be discharged downward (in a direction parallel to the Z-axis of FIG. 11 ) through the lower cover hole 130a.
- the mesh filter M is inserted/fixed in the lower cover hole 130a.
- the mesh filter (M) functions to pass the gas generated in the battery module 100 as it is, but to reduce the amount of flame discharged downward through the lower cover hole 130a and the speed of flame ejection.
- the first partition wall 131 has a shape extending downward from the lower surface of the lower cover 130 , and increases the movement path of the flame together with the second partition wall 210 to be described later so that the flame moves to the outside of the battery pack 1 . Make sure that it can be destroyed inside without leaking.
- the supporting plate 200 is located under the plurality of battery modules 100 and provides a space into which the plurality of battery modules 100 can be inserted.
- the supporting plate 200 includes a plurality of second partition walls 210 extending upward (in a direction parallel to the Z-axis in FIG. 11) and a gas discharge hole 200a formed in the center in the longitudinal direction (in a direction parallel to the X-axis in FIG. 11). ) is provided.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Biophysics (AREA)
- Computer Hardware Design (AREA)
- Life Sciences & Earth Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims (14)
- 상단에 형성되는 적어도 한 쌍의 제1 그립 홈 및 적어도 하나의 커넥터를 구비하는 한 쌍의 배터리 모듈;상기 한 쌍의 배터리 모듈의 하단에 결합되며, 지면에 고정되는 서포팅 플레이트;상기 제1 그립 홈에 삽입되는 가이드 돌출부를 구비하며, 상기 커넥터를 통해 상기 한 쌍의 배터리 모듈에 플러그인 타입으로 결합되는 BMS 어셈블리;를 포함하는 배터리 팩.
- 제1항에 있어서,상기 배터리 모듈은,복수의 배터리 셀을 포함하는 셀 적층체;상기 셀 적층체를 수용하는 모듈 하우징;상기 모듈 하우징의 하단 개구부를 커버하는 하부 커버; 및상기 모듈 하우징의 상단 개구부를 커버하는 상부 커버 어셈블리;를 포함하는 것을 특징으로 하는 배터리 팩.
- 제2항에 있어서,상기 상부 커버 어셈블리는,상기 모듈 하우징의 상단 개구부를 커버하며, 그 길이 방향 일 측에 형성된 상기 커넥터를 구비하고, 그 중심부에 하방으로 오목하게 형성된 상부 커버 홈을 구비하는 상부 커버;상기 상부 커버 홈 내에 고정되며, 상기 배터리 셀과 전기적으로 연결되는 퓨즈;상기 상부 커버 홈 내에서 상기 퓨즈를 커버하는 퓨즈 커버; 및상기 상부 커버 홈의 상단을 커버하며, 상기 상부 커버에 결합되는 커버 플레이트;를 포함하는 것을 특징으로 하는 배터리 팩.
- 제3항에 있어서,상기 커버 플레이트는,적어도 한 쌍의 커버 플레이트 홀을 구비하며, 상기 퓨즈 커버와 이격된 상태로 설치되어 상기 커버 플레이트와 상기 퓨즈 커버 사이에 상기 제1 그립 홈이 형성되도록 하는 것을 특징으로 하는 배터리 팩.
- 제4항에 있어서,상기 BMS 어셈블리는,상기 한 쌍의 배터리 모듈과 결합되는 BMS 본체; 및상기 BMS 본체의 상부에 결합되는 BMS 커버;를 포함하는 것을 특징으로 하는 배터리 팩.
- 제5항에 있어서,상기 배터리 팩은,상기 BMS 커버의 길이 방향 일 측 및 타 측과 상기 BMS 본체 사이에 형성되는 제2 그립 홈을 구비하는 것을 특징으로 하는 배터리 팩.
- 제5항에 있어서,상기 가이드 돌출부는,상기 BMS 본체의 하면에 형성되며, 상기 커버 플레이트 홀을 통해 상기 제1 그립 홈 내에 삽입되어 상기 BMS 어셈블리와 배터리 모듈 간의 결합을 가이드 하는 것을 특징으로 하는 배터리 팩.
- 제7항에 있어서,상기 배터리 팩은,상기 가이드 돌출부와 상기 커버 플레이트 홀의 내측면 사이에 개재되는 가스켓을 더 포함하는 것을 특징으로 하는 배터리 팩.
- 제2항에 있어서,상기 셀 적층체와 모듈 하우징 사이에는 가스 유로가 형성되는 것을 특징으로 하는 배터리 팩.
- 제9항에 있어서,상기 하부 커버는,그 길이 방향 양 측에 형성되며 상기 가스 유로와 연통되는 하부 커버 홀을 구비하는 것을 특징으로 하는 배터리 팩.
- 제10항에 있어서,상기 하부 커버 홀 내에는 메쉬 필터가 삽입되는 것을 특징으로 하는 배터리 팩.
- 제11항에 있어서,상기 하부 커버는,하방으로 연장 형성된 복수의 제1 격벽을 구비하는 것을 특징으로 하는 배터리 팩.
- 제12항에 있어서,상기 서포팅 플레이트는,상방으로 연장 형성된 복수의 제2 격벽; 및길이 방향 중심부에 형성된 가스 배출 홀;을 구비하는 것을 특징으로 하는 배터리 팩.
- 제13항에 있어서,서로 대응되는 위치에 형성되는 상기 제1 격벽과 제2 격벽은 서로 교차하는 것을 특징으로 하는 배터리 팩.
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