WO2023101370A1 - 전지 팩 및 이를 포함하는 디바이스 - Google Patents
전지 팩 및 이를 포함하는 디바이스 Download PDFInfo
- Publication number
- WO2023101370A1 WO2023101370A1 PCT/KR2022/019110 KR2022019110W WO2023101370A1 WO 2023101370 A1 WO2023101370 A1 WO 2023101370A1 KR 2022019110 W KR2022019110 W KR 2022019110W WO 2023101370 A1 WO2023101370 A1 WO 2023101370A1
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- WO
- WIPO (PCT)
- Prior art keywords
- gasket
- case
- tray
- paragraph
- cover
- Prior art date
Links
- 239000011324 bead Substances 0.000 claims description 40
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
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- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
- H01M50/271—Lids or covers for the racks or secondary casings
-
- 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 and a device including the same, and more particularly, to a battery pack having improved waterproof and dustproof performance and a device including the same.
- secondary batteries are electric vehicles (EVs), hybrid electric vehicles (HEVs), and plug-in hybrid electric vehicles that are proposed as a solution to air pollution caused by existing gasoline vehicles and diesel vehicles using fossil fuels.
- EVs electric vehicles
- HEVs hybrid electric vehicles
- plug-in hybrid electric vehicles plug-in hybrid electric vehicles that are proposed as a solution to air pollution caused by existing gasoline vehicles and diesel vehicles using fossil fuels.
- an electric vehicle (EV) capable of operating only with a battery, a hybrid electric vehicle (HEV) using a battery and an existing engine, and the like have been developed, and some have been commercialized.
- a secondary battery as a power source for EVs, HEVs, etc., nickel metal hydride secondary batteries are mainly used, but recently, studies using lithium secondary batteries with high energy density, high discharge voltage, and output stability have been actively conducted.
- the secondary battery When such a secondary battery is used as a power source of a vehicle, the secondary battery is used in the form of a battery pack including a plurality of battery modules or battery module assemblies.
- gaskets made of rubber are positioned at junctions between cases to seal the battery pack.
- a step may occur at a portion where the cases come into contact, and an assembly error may occur.
- An object to be solved by the present invention is to provide a battery pack having improved waterproof and dustproof performance and a device including the same.
- a battery pack includes at least one battery module; a pack case including a case cover covering the at least one battery module and a case tray coupled to an edge of the case cover; and a gasket disposed between the case cover and the case tray, wherein the gasket includes a gasket flat portion, which is an area in which the gasket extends without curvature, and the gasket is deformed to correspond to the shape of the pack case to reduce curvature. It includes a gasket corner portion that is a region that is bent while holding.
- the pack case may include a first region in which the case cover and the case tray are positioned in parallel, and a second region in which the case cover and the case tray are bent while having a curvature.
- the gasket flat part may be positioned in the first area, and the gasket corner part may be positioned in the second area.
- the distance between the case cover and the case tray in the first area is a first length
- the distance between the case cover and the case tray in the second area is a second length
- the first length is less than the second length
- the second length may be 90% or less of the total length of the first length.
- a curvature of the gasket cover in the second region may be less than a curvature of the gasket tray.
- a curvature of the gasket in the second region may correspond to a curvature of the gasket cover or may be smaller than a curvature of the gasket tray.
- a compression amount of the gasket in the first region may be smaller than a compression amount of the gasket in the second region.
- the gasket may include a gasket band forming an overall shape of the gasket and a plurality of fastening portions formed as holes spaced apart from the gasket band.
- the fastening part may be provided in an area corresponding to a cover fastening hole, which is a plurality of holes passing through the case cover, and a tray fastening hole, which is a plurality of holes passing through the case tray.
- the gasket may include an elastic bead formed in a shape protruding in a height direction on an outer circumferential surface of the gasket.
- the gasket may include a position guider provided between the fastening parts and protruding from the gasket band in a direction perpendicular to a longitudinal direction of the gasket band.
- the gasket may include a guide bead provided on the gasket band and provided at a position close to the position guide.
- a stepped portion having a wider gap between the case cover and the case tray than other portions, and a reinforcing portion having a larger surface area than other areas of the gasket in one region of the gasket corresponding to the stepped portion. can do.
- a concave-convex structure may be formed on a surface of the reinforcing part.
- FIG. 1 is a perspective view of a battery pack according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of a battery pack according to an embodiment of the present invention.
- FIG 3 is a view showing a gasket according to an embodiment of the present invention.
- FIG. 4 is a view showing B1 of FIG. 3 .
- FIG. 5 is a diagram showing a region including a corner portion of a battery pack according to an embodiment of the present invention.
- FIG. 6(a) is a diagram illustrating an imaginary circle forming a flat portion of a battery pack according to an embodiment of the present invention
- FIG. 6(b) illustrates a corner portion of the battery pack according to an embodiment of the present invention. It is a drawing representing an imaginary circle.
- FIG. 7 is a view showing a bead provided in a gasket according to an embodiment of the present invention.
- FIG. 8 is a view showing a bead provided in a fastening part of a gasket according to an embodiment of the present invention.
- FIG. 9 is a view showing a guide provided in a gasket according to an embodiment of the present invention.
- FIG. 10 is a view showing that the pack case is coupled according to an embodiment of the present invention.
- FIG. 11 is an enlarged view of part B2 of FIG. 3 .
- a part such as a layer, film, region, plate, etc.
- another part is in the middle.
- a part is said to be “directly on” another part, it means that there is no other part in between.
- a reference part means to be located above or below the reference part, and to necessarily be located “above” or "on” in the opposite direction of gravity does not mean no.
- planar image it means when the target part is viewed from above, and when it is referred to as “cross-sectional image”, it means when a cross section of the target part cut vertically is viewed from the side.
- FIG. 1 is a perspective view of a battery pack according to an embodiment of the present invention.
- 2 is an exploded perspective view of a battery pack according to an embodiment of the present invention.
- the battery pack 10 includes a case cover 110 covering a plurality of battery modules 11 and a case while accommodating the plurality of battery modules 11 . It includes a pack case 100 including a case tray 120 coupled to the cover 110, and is provided between the case cover 110 and the case tray 120 to prevent intrusion of moisture or dust from the outside. It includes a gasket 200 that does.
- the battery module 11 may include a battery cell stack and a module frame in which a plurality of battery cells are stacked in a predetermined direction.
- the module frame may include an upper frame and a lower frame, and the battery cell stack may be mounted between the upper frame and the lower frame to form a battery module.
- the module frame is not limited to the above, and may be a monoframe in the form of a metal plate in which the upper and lower surfaces and both sides are integrated.
- the type of the battery cell is not particularly limited, it may be a pouch-type secondary battery or a prismatic secondary battery, but is preferably a pouch-type secondary battery.
- the case cover 110 may have an inverted U-shape to cover the top and both sides of the battery module 11, but is not limited thereto.
- a cover fastening hole 115 may be provided in the case cover 110 .
- a plurality of cover fastening holes 115 may be provided.
- the cover fastening hole 115 may be a hole spaced apart along the edge of the case cover 110 .
- the cover fastening hole 115 may be a portion penetrating the case cover 110 .
- a fastening member 117 may be fastened through the cover fastening hole 115 .
- the case tray 120 may have a U-shape covering the lower surface and the front and rear surfaces of the battery module 11, but is not limited thereto.
- a tray fastening hole 125 may be provided in the case tray 120 .
- a plurality of tray fastening holes 125 may be provided.
- the tray fastening holes 125 may be holes spaced apart from each other along the edge of the case tray 120 .
- the tray fastening hole 125 may be a part penetrating the case tray 120 .
- a fastening member 117 may be fastened through the tray fastening hole 125 .
- the case cover 110 and the case tray 120 may be coupled while corresponding edges.
- the cover fastening hole 115 and the tray fastening hole 125 may be provided at positions corresponding to each other, and the fastening member 117 penetrates and fastens the cover fastening hole 115 and the tray fastening hole 125. It can be. That is, the case cover 110 and the case tray 120 are coupled to each other through a fastening member 117 that is fastened while penetrating the cover fastening hole 115 and the tray fastening hole 125 to package the battery module 11. can do. Coupling of the case cover 110 and the case tray 120 through the fastening member 117 may be performed at an edge of the case cover 110 and the case tray 120 .
- the fastening member 117 may be a bolt or nut.
- the case cover 110 and the case tray 120 may be made of a material having rigidity. Therefore, it is possible to protect the plurality of battery modules 11 and electrical components connected thereto from external physical impact.
- the gasket 200 is a member positioned between the case cover 110 and the case tray 120, and improves the degree of sealing when the case cover 110 and the case tray 120 are coupled to the battery module 11 side. It can prevent penetration of moisture or foreign substances.
- the gasket 200 may be provided along an area where edges of the case cover 110 and the case tray 120 are engaged. Accordingly, the gasket 200 may correspond to the edge shape of the case cover 110 and may also correspond to the edge shape of the case tray 120 .
- gasket 200 according to an embodiment of the present invention will be described in more detail.
- FIG. 3 is a view showing a gasket according to an embodiment of the present invention.
- FIG. 4 is a view showing B1 of FIG. 3 .
- a gasket 200 may include a gasket band 201 and a fastening portion 205 .
- the gasket band 201 may form the overall shape of the gasket 200 .
- the gasket band 201 may be formed to correspond to the edge shapes of the case cover 110 and the case tray 120 .
- the gasket band 201 may have a predetermined length and may be made of an elastic material such as rubber.
- the fastening part 205 may be a plurality of holes provided in the gasket 200 .
- the fastening part 205 may be a plurality of holes formed spaced apart from the gasket band 201 .
- the fastening part 205 may be a part penetrating the gasket band 201 .
- a fastening member may be penetrated and fastened to the fastening part 205 .
- the fastening part 205 may be provided in an area corresponding to the cover fastening hole 115 and the tray fastening hole 125 . Therefore, the fastening member is fastened while passing through the cover fastening hole 115, the gasket 200, and the tray fastening hole 125 at the same time, so that the pack case 100 and the gasket 200 can be fixed, and the battery pack 10 ) can improve durability.
- Gasket 200 may be formed of an elastic member.
- the gasket 200 may be formed of rubber. Accordingly, when pressure is applied to the gasket 200, the shape of the gasket 200 may change as the pressure is applied. That is, the gasket 200 according to an embodiment of the present invention may be provided between the gasket cover 110 and the gasket tray 120 and receive pressure to change into a three-dimensional shape.
- the gasket 200 may include a gasket flat portion 210 and a gasket corner portion 230 .
- the gasket flat portion 210 may be a region in which the gasket 200 extends in a flat plane.
- the gasket flat portion 210 may be an area where the gasket 200 extends without curvature.
- the gasket corner portion 230 may be an area where the gasket 200 is bent.
- the gasket corner portion 230 may be a region where the gasket 200 is bent while having a curvature.
- the gasket corner portion 230 may be an area where the gasket 200 is bent while corresponding to the shape of the case cover 110 .
- the gasket corner portion 230 may be an area where the gasket 200 is bent while corresponding to the shape of the case tray 120 .
- the shape of the gasket 2000 is changed so that a gap formed between the case cover 110 and the case tray 120 may be filled. Therefore, moisture or dust from the outside can be prevented from entering the battery pack.
- FIG. 5 is a diagram showing a region including a corner portion of a battery pack according to an embodiment of the present invention.
- 6(a) is a diagram illustrating an imaginary circle forming a flat portion of a battery pack according to an embodiment of the present invention
- FIG. 6(b) illustrates a corner portion of the battery pack according to an embodiment of the present invention. It is a drawing representing an imaginary circle.
- a gasket space 130 which is a gap in which a gasket 200 can be provided, exists between the case cover 110 and the case tray 120.
- the first area A1 of FIG. 5 may be an area where the case cover 110 and the case tray 120 are formed without curvature while having a regular interval therebetween. That is, the first area A1 may be an area where the case cover 110 and the case tray 120 are positioned in parallel.
- the first area A1 may be an area where the gasket flat part is located.
- the gasket 200 may be positioned in the gasket space 130 of the first area A1.
- a gasket flat part may be positioned in the gasket space 130 of the first area A1 .
- the distance between the case cover 110 and the case tray 120 may be a first length d1.
- the height of the gasket 200 located in the gasket space 130 of the first area A1 may be compressed to a height corresponding to or smaller than the first length d1 .
- the second area A2 of FIG. 5 may be an area where the case cover 110 and the case tray 120 are bent while having a curvature.
- a gasket 200 may be positioned in the gasket space 130 of the second area A2 .
- a gasket corner portion in which the gasket 200 is deformed to correspond to the shape of the case cover 110 and the case tray 120 may be positioned. That is, the second area A2 may be an area where the gasket corner portion is located.
- the distance between the case cover 110 and the case tray 120 may be a second length d2 .
- the height of the gasket 200 located in the gasket space 130 of the second area A2 may be compressed to a height corresponding to or smaller than the second length d2 .
- the first length d1 and the second length d2 may be different from each other.
- the first length d1 and the second length d2 may not be constant.
- the second length d2 may be shorter than the first length d1.
- the second length d2 may be 90% or less of the total length of the first length d1.
- the compression amount of the gasket 200 may be greater in the second area A2 than in the first area A1.
- the curvature of the gasket tray 120 may be greater than the curvature of the gasket cover 110 .
- the curvature of the gasket 200 provided in the second area A2 may correspond to the curvature of the gasket cover 110 or may be smaller than the curvature of the gasket tray 120 .
- the degree of compression of the gasket 200 in the second area A2 may be greater. Therefore, when the gasket 200 is provided between the case cover 110 and the case tray 120, the compression amount of the gasket 200 in the first area A1 is the gasket in the second area A2. It may be smaller than the compression amount of (200).
- the amount of compression of the gasket 200 is relatively increased with respect to the bent region of the pack case 100, so that airtightness of the battery pack can be additionally secured and waterproof and dustproof performance of the battery pack can be improved.
- FIG. 6 two circles are shown. Specifically, referring to FIG. 6 (a), a first circle (C1) and a second circle (C2) are shown, and referring to FIG. 6 (b), a third circle (C3) and a fourth circle ( C5) is shown.
- the first circle C1 and the third circle C3 define a region of the inner surface of the case cover 110 positioned adjacent to the edge of the case tray 120, the first circle C1 and the third circle C3 ) as one point constituting it, and may be a virtual circle formed while having the same radius based on one center.
- the second circle C2 may be a circle schematically representing an edge area of the case tray 120 in the first area A1 of FIG. 5 .
- the distance between the first circle C1 and the second circle C2 may be the first distance d1.
- the fourth circle C4 may be a circle schematically representing an edge area of the case tray 120 in the second area A2 of FIG. 5 .
- the shortest distance among the distances between the third circle C3 and the fourth circle C4 may be the second distance d2.
- the distance between the case cover 110 and the case tray 120 in the first area A1 and the second area A2 is different, and preferably the distance in the second area A2 is the first area It may be shorter than the distance in (A1). Therefore, since the compression amount of the gasket located in the second area A2 is higher than that of the first area A1, even the second area A2 of the pack case whose shape is deformed while having a curvature is provided with a constant shape. Similar to the first area A1, waterproof and dustproof performance may be maintained or may be further improved.
- FIG. 7 is a view showing a bead provided in a gasket according to an embodiment of the present invention.
- 8 is a view showing a bead provided in a fastening part of a gasket according to an embodiment of the present invention.
- a gasket 200 may include an elastic bead 250 .
- the elastic bead 250 is to further improve the sealing performance of the gasket 200 and may be formed on an outer circumferential surface of the gasket 200 .
- the elastic bead 250 may be formed in a shape protruding in a height direction on an outer circumferential surface of the gasket 200 .
- the elastic bead 250 may be elastically deformable while being pressed by the case cover 110 and the case tray 120 .
- the elastic bead 250 may include a band bead 251 and a fastening bead 255 .
- a plurality of band beads 251 may be provided.
- the band bead 251 may be formed on an outer circumferential surface of the gasket band 201 .
- the band bead 251 may be formed long along the length direction of the gasket band 201 .
- the band bead 251 may receive pressure from the case cover 110 and the case tray 120 in a height direction.
- the band bead 251 may be a region protruding in the height direction of the gasket band 201 along the length direction of the gasket band 201 .
- the shape of the band bead 251 may be deformed while spreading in the width direction of the gasket band 201 .
- a plurality of fastening beads 255 may be provided.
- the fastening bead 255 may be formed on an outer circumferential surface of the fastening part 205 .
- the fastening bead 255 may be formed to correspond to the shape of the fastening part 205 .
- the fastening bead 255 may be a region protruding in the height direction of the fastening part 205 .
- the fastening bead 255 may receive pressure from the case cover 110 and the case tray 120 in a height direction.
- the shape of the fastening bead 255 may be deformed while spreading in the width direction of the fastening part 205 .
- FIG. 9 is a view showing a position guider provided in a gasket according to an embodiment of the present invention.
- a gasket 200 may include a position guider 500 and a gasket bead 700 .
- At least one position guider 500 is provided between the plurality of fastening parts 205 and may protrude from the gasket band 201 to a predetermined length in a direction perpendicular to the longitudinal direction of the gasket band 201 .
- At least one position guider 500 may have a protruding length at least equal to that of the plurality of fastening parts 205 . In addition, at least one position guider 500 may protrude without exceeding the edge line of the case cover 110 and the case tray 120 .
- the protruding length of the at least one position guider 500 may be a preset protruding length for positioning the gasket 200 in a proper position.
- the preset protrusion length is at least the same protrusion length as the protrusion length of the plurality of fastening parts 205, or the case cover 110 and the case tray do not exceed the edge line of the case cover 110 and the case tray 120. It may be a protruding length disposed near the line of (120).
- At least one position guider 500 may be spaced apart from the band bead 251 so as not to interfere with the band bead 251 .
- the position guider 500 may be provided in plurality.
- At least one of the plurality of position guiders 500 may be provided between the plurality of fastening parts 205 .
- the plurality of position guiders 500 may be spaced apart from each other by a predetermined distance along the length direction of the gasket band 201 .
- the guide bead 700 is provided on the gasket band 201 and may be provided at a position close to the position guider 500 .
- the guide bead 700 may have a circular shape.
- the guide bead 700, together with the elastic bead 250, can further improve the sealing performance of the gasket 200. That is, when the case cover 110 and the case tray 120 are coupled together with the elastic bead 250, the guide bead 700 can be elastically deformed while being pressed by the case cover 110 and the case tray 120. can
- FIG. 10 is a view showing that the pack case is coupled according to an embodiment of the present invention.
- FIG. 11 is an enlarged view of part B2 of FIG. 3 .
- the gap between the case cover 110 and the case tray 120 may be wider than other parts of the stepped portion 114.
- the sealing for blocking the inflow of foreign substances from the outside may be weak, and therefore, supplementation is required.
- a reinforcing portion 290 having a larger surface area than other portions may be formed in one region of the gasket 200 corresponding to the stepped portion 114 .
- the reinforcing part 290 may form a concavo-convex structure on the surface. Due to the concavo-convex structure, the reinforcing part 290 may be formed to have a wide surface area.
- the concavo-convex structure may have, for example, a lattice shape, but is not limited thereto, and is not particularly limited as long as the structure can increase the surface area.
- the path through which foreign substances such as moisture flow into the battery pack from the outside becomes longer, so that the inflow of foreign substances can be effectively blocked.
- foreign substances may be introduced from the outside through the stepped portion 114, which is a gap between the case cover 110 and the case tray 120. is located, it is possible to increase the length of the inflow path of the foreign matter.
- the stepped portion 114 is shown as being located at any one part of the pack case 100, but the stepped portion 114 may occur at any position of the pack case 100. Accordingly, the reinforcement part 290 may be formed in the gasket 200 to prevent the sealing of the stepped part 114 from being weakened.
- fastening parts 205 which are holes penetrating the reinforcing part 290 , may be formed.
- the cover fastening hole of the case cover 110 and the case tray corresponding to the position of the fastening part 205 of the reinforcing part 290 The tray fastening hole of 120 may be located.
- the fastening member 117 is penetrated and fastened to the fastening part 205 so that the reinforcing part 290 can be combined with the case cover 110 and the case tray 120 . That is, since the fastening member 117 is fastened while penetrating the cover fastening hole, the fastening part 205, and the tray fastening hole at the same time, the gasket 200 is more securely fixed to the case cover 110 and the case tray 120.
- the fastening member 117 may have a coupling structure of a bolt and a nut.
- the battery pack described above can be applied to various devices.
- a device may be applied to means of transportation such as an electric bicycle, an electric vehicle, or a hybrid vehicle, but the present invention is not limited thereto and is applicable to various devices capable of using a battery module and a battery pack including the battery module, which is also applicable to the present invention. It belongs to the scope of the right of invention.
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- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims (15)
- 적어도 하나의 전지 모듈;상기 적어도 하나의 전지 모듈을 덮는 케이스 커버와, 상기 케이스 커버의 가장자리와 결합하는 케이스 트레이를 포함하는 팩 케이스; 및상기 케이스 커버와 상기 케이스 트레이 사이에 배치되는 가스켓을 포함하고,상기 가스켓은, 상기 가스켓이 곡률 없이 연장되는 일 영역인 가스켓 평면부 및 상기 가스켓이 상기 팩 케이스의 형상과 대응되게 변형되어 곡률을 가지면서 절곡되는 일 영역인 가스켓 코너부를 포함하는 전지 팩.
- 제1항에서,상기 팩 케이스는, 상기 케이스 커버와 상기 케이스 트레이가 평행하게 위치하는 제1 영역, 및 상기 케이스 커버와 상기 케이스 트레이가 곡률을 가지면서 절곡되는 제2 영역을 포함하고,상기 케이스 커버와 상기 케이스 트레이 사이에는 상기 가스켓이 위치하는 가스켓 스페이스가 구비되는 전지 팩.
- 제2항에서,상기 제1 영역의 상기 가스켓 스페이스에는 상기 가스켓 평면부가 위치하고,상기 제2 영역의 상기 가스켓 스페이스에는 상기 가스켓 코너부가 위치하는 전지 팩.
- 제2항에서,상기 제1 영역에서 상기 케이스 커버와 상기 케이스 트레이 사이의 거리는 제1 길이이고,상기 제2 영역에서 상기 케이스 커버와 상기 케이스 트레이 사이의 거리는 제2 길이이며,상기 제1 길이는 상기 제2 길이보다 긴 전지 팩.
- 제4항에서,상기 제2 길이는 상기 제1 길이의 전체 길이의 90% 이하인 전지 팩.
- 제2항에서,제2 영역에서의 상기 가스켓 커버의 곡률은, 상기 가스켓 트레이의 곡률보다 작은 전지 팩.
- 제6항에서,제2 영역에서의 상기 가스켓의 곡률은, 상기 가스켓 커버의 곡률과 대응되거나, 상기 가스켓 트레이의 곡률보다 작은 전지 팩.
- 제2항에서,상기 제1 영역에서의 상기 가스켓의 압축량은, 상기 제2 영역에서의 상기 가스켓의 압축량보다 작은 전지 팩.
- 제1항에서,상기 가스켓은, 상기 가스켓의 전체적인 형상을 형성하는 가스켓 밴드 및 상기 가스켓 밴드에 이격되어 형성되는 복수 개의 홀인 체결부를 포함하는 전지 팩.
- 제9항에서,상기 체결부는, 상기 팩 케이스와 상기 가스켓이 결합하는 경우, 상기 케이스 커버를 관통하는 복수 개의 홀인 커버 체결홀 및 상기 케이스 트레이를 관통하는 복수 개의 홀인 트레이 체결홀과 대응되는 영역에 구비되는 전지 팩.
- 제9항에서,상기 가스켓은, 상기 가스켓의 외주면에 높이 방향으로 돌출된 형상으로 형성되는 탄성 비드를 포함하는 전지팩.
- 제9항에서,상기 가스켓은, 상기 체결부 사이에 구비되며, 상기 가스켓 밴드로부터 상기 가스켓 밴드의 길이 방향에 수직한 방향으로 돌출되는 포지션 가이더를 포함하는 전지 팩.
- 제12항에서,상기 가스켓은, 상기 가스켓 밴드에 구비되며, 상기 포지션 가이드와 가까운 위치에 구비되는 가이드 비드를 포함하는 전지 팩.
- 제1항에서,상기 케이스 커버와 상기 케이스 트레이 사이의 간격이 다른 부분에 비해 넓은 영역인 단차부를 포함하고,상기 단차부에 대응하는 상기 가스켓의 일 영역에, 상기 가스켓의 다른 영역에 비해 표면적인 넓게 형성된 보강부를 포함하는 전지 팩.
- 제14항에서,상기 보강부는, 표면에 요철 구조를 형성하는 전지 팩.
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EP22901728.0A EP4366054A1 (en) | 2021-12-03 | 2022-11-29 | Battery pack and device comprising same |
JP2024504547A JP2024527011A (ja) | 2021-12-03 | 2022-11-29 | 電池パックおよびこれを含むデバイス |
CN202280058829.XA CN117882239A (zh) | 2021-12-03 | 2022-11-29 | 电池组和包括该电池组的装置 |
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KR10-2021-0171755 | 2021-12-03 |
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Citations (5)
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KR20170082256A (ko) * | 2016-01-06 | 2017-07-14 | 주식회사 엘지화학 | 탄력적인 결합 구조의 멀티 패널을 포함하는 전지팩 |
KR20170098583A (ko) * | 2016-02-22 | 2017-08-30 | 주식회사 엘지화학 | 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
KR20200102186A (ko) * | 2019-02-21 | 2020-08-31 | 삼성에스디아이 주식회사 | 배터리 팩 |
KR20210068862A (ko) * | 2019-12-02 | 2021-06-10 | 주식회사 엘지에너지솔루션 | 전지팩 및 이를 포함하는 디바이스 |
KR20210135785A (ko) * | 2020-05-06 | 2021-11-16 | 에너테크인터내셔널 주식회사 | 전기 자동차용 밀폐형 배터리팩 하우징 |
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- 2022-11-29 JP JP2024504547A patent/JP2024527011A/ja active Pending
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KR20170082256A (ko) * | 2016-01-06 | 2017-07-14 | 주식회사 엘지화학 | 탄력적인 결합 구조의 멀티 패널을 포함하는 전지팩 |
KR20170098583A (ko) * | 2016-02-22 | 2017-08-30 | 주식회사 엘지화학 | 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
KR20200102186A (ko) * | 2019-02-21 | 2020-08-31 | 삼성에스디아이 주식회사 | 배터리 팩 |
KR20210068862A (ko) * | 2019-12-02 | 2021-06-10 | 주식회사 엘지에너지솔루션 | 전지팩 및 이를 포함하는 디바이스 |
KR20210135785A (ko) * | 2020-05-06 | 2021-11-16 | 에너테크인터내셔널 주식회사 | 전기 자동차용 밀폐형 배터리팩 하우징 |
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CN117882239A (zh) | 2024-04-12 |
KR20230083606A (ko) | 2023-06-12 |
EP4366054A1 (en) | 2024-05-08 |
JP2024527011A (ja) | 2024-07-19 |
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