WO2018030846A1 - 프레임의 구조가 개선된 배터리 모듈 및 이를 위한 프레임 어셈블리 - Google Patents
프레임의 구조가 개선된 배터리 모듈 및 이를 위한 프레임 어셈블리 Download PDFInfo
- Publication number
- WO2018030846A1 WO2018030846A1 PCT/KR2017/008759 KR2017008759W WO2018030846A1 WO 2018030846 A1 WO2018030846 A1 WO 2018030846A1 KR 2017008759 W KR2017008759 W KR 2017008759W WO 2018030846 A1 WO2018030846 A1 WO 2018030846A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- cell
- battery module
- frame assembly
- side plate
- 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
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Classifications
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0486—Frames for plates or membranes
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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
- H01M10/4207—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
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
-
- 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
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/222—Inorganic material
- H01M50/224—Metals
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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
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a battery module, and more particularly, to a battery module having a structure in which a cell is supported by an outer frame and a frame assembly therefor.
- a battery module is formed in a structure in which a plurality of cells are aggregated through serial and / or parallel connections.
- a battery module typically includes a cell assembly in which a plurality of cells are arranged in one direction and stacked, and a frame having a plate to surround the cell assembly.
- the conventional battery module is manufactured in a structure in which the cell assembly 20 is surrounded by a frame 10 integrally formed by an extrusion or die casting method as shown in FIG. 1.
- Korean Laid-Open Patent Publication No. 2015-0031861 discloses a battery module in which a site plate is disposed adjacent to a side of a cell assembly.
- Korean Laid-Open Patent Publication No. 2015-0031861 includes a plurality of battery cells aligned in one direction; And a side plate disposed adjacent to a side surface of the battery cell, wherein the side plate protrudes toward the battery cell and has a pressing area for pressing the battery cell, and the pressing area provides tension to the battery cell.
- a battery module having improved safety by preventing the flow of battery cells.
- Korean Laid-Open Patent Publication No. 2012-0051237 has at least two or more pouch-type secondary batteries arranged side by side and the same side with electrode tabs is disposed, and each of the pouch-type secondary batteries is mounted by sliding vertically or horizontally.
- the present invention discloses a battery module case coupled to an outer circumferential surface including a surface with an electrode tab of the pouch-type secondary battery, and formed of a prefabricated structure of up, down, and side separation.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a battery module having a structure in which a frame is formed by assembling plates made of materials such as metal sheets and a frame assembly therefor.
- the present invention to achieve the above object is at least one cell; And a lower plate supporting a lower surface of the cell, a side plate extending vertically from either edge of the lower plate and disposed adjacent to the outermost side of the cell, and coupled to an upper end of the side plate.
- a battery module comprising a; frame assembly having an upper plate covering the top of the.
- the upper plate is preferably coupled by welding an edge portion to the top of the side plate.
- the battery module according to the present invention may further include a first guide plate extending vertically from both edges of the lower plate to prevent detachment of the cell.
- the first guide plate may be bent from the lower plate to be integrally formed.
- the battery module according to the present invention may further include a second guide plate extending vertically from an edge end of the upper plate to prevent detachment of the cell.
- the second guide plate may be bent from the upper plate to be integrally formed.
- the side plate may be bent from the lower plate to be integrally formed.
- the frame assembly for supporting at least one or more cells on the outside of the battery module, comprising: a lower plate for supporting the bottom surface of the cell; A side plate extending vertically from either edge of the lower plate and disposed adjacent to the outermost side of the cell; And an upper plate disposed to cover the top of the cell and having both edges coupled to an upper end of the side plate.
- the frame assembly of the battery module is manufactured by a plate material such as a metal sheet, it is possible to reduce the weight and to reduce the process cost by assembling by welding.
- FIG. 1 is a perspective view showing the appearance of a battery module according to the prior art.
- FIG. 2 is an exploded perspective view showing the configuration of a battery module according to an embodiment of the present invention.
- FIG. 3 is a perspective view of the combination of FIG.
- FIG. 4 is a perspective view illustrating a configuration of a battery module according to another embodiment of the present invention.
- FIG. 5 is a perspective view of the combination of FIG.
- FIG. 2 is an exploded perspective view showing the configuration of a battery module according to an embodiment of the present invention.
- a battery module according to a preferred embodiment of the present invention is disposed to surround a plurality of cells 100, a plurality of cells 100, and includes a lower plate 111, a side plate 113, and an upper plate.
- Frame assembly 110 with 114 is disposed to surround a plurality of cells 100, a plurality of cells 100, and includes a lower plate 111, a side plate 113, and an upper plate.
- Frame assembly 110 with 114 is disposed to surround a plurality of cells 100, a plurality of cells 100, and includes a lower plate 111, a side plate 113, and an upper plate.
- Each cell 100 has a thin plate-shaped body, and is preferably constituted by a pouch type secondary battery.
- the plurality of cells 100 are arranged in one direction to form a substantially stacked structure.
- the frame assembly 110 is a structure for accommodating and supporting and protecting the cells 100 in units of a plurality of cells.
- the frame assembly 110 is adjacent to the lower plate 111 positioned below the cell 100 and the outermost side of the cell 100.
- Side plate 113 and a top plate 114 positioned above the cell 100.
- Each of the plates 111, 113, 114 constituting the frame assembly 110 is formed by a metal sheet (or metal plate), such as an aluminum plate, having a thin thickness of several millimeters.
- the lower plate 111 has a base surface capable of collectively supporting the bottom surfaces of the plurality of cells 100.
- the side plate 113 extends vertically upward from both edges of the lower plate 111 and is disposed adjacent to the outermost side of the cell 100. That is, the pair of side plates 113 is provided, the interval is set to the extent that can accommodate a plurality of cells (100).
- the side plate 113 is bent from the lower plate 111 is preferably formed integrally so that the cross-section '' 'shaped.
- 112 extends vertically upwards by a few centimeters of height.
- the first guide plate 112 is preferably bent from the lower plate 111 to be integrally formed.
- the upper plate 114 is coupled to the upper end of the side plate 113 to cover the upper portion of the plurality of cells 100 collectively.
- the upper plate 114 is preferably welded to both edge portions of the upper side of the side plate 113.
- a welded portion (refer to W in FIG. 3) is formed at a corner portion where the side plate 113 and the upper plate 114 meet.
- the welding method laser welding, ultrasonic welding, spot welding, or the like may be adopted.
- FIG. 3 illustrates a state in which the upper plate 114 is assembled to the upper end of the side plate 113 by welding.
- the battery module including the frame assembly 110 provided in units of a plurality of cells 100 has the upper plate 114 in a state in which the plurality of cells 100 are disposed in the frame assembly 110.
- the edge portion of the side plate 113 is welded to the top is produced.
- the width of the top plate 114 preferably coincides with the spacing of the inner surfaces of the pair of side plates 113 or substantially coincides with the spacing of the outer surfaces of the pair of side plates 113.
- the cells 100 accommodated in the frame assembly 110 are separated from the front and rear directions, that is, the direction perpendicular to the arrangement direction of the cells 100, at both edge ends not in contact with the side plates 113.
- the second guide plate 115 for preventing the extension extends vertically downward by a height of several centimeters.
- the second guide plate 115 is preferably bent from the upper plate 114 to be integrally formed.
- a battery module having a structure in which the frame assembly 110 is coupled in a single cell unit is provided.
- the battery module is provided to correspond to a single cell 100 and a single cell 100 is arranged to surround the cell 100, the lower plate 111, side plate 113 and the upper plate 114 It includes a frame assembly 110 having a).
- the frame assembly 110 is provided to correspond to each of the single cells 100, the frame assembly 110 may be provided in a slim shape because it is configured to accommodate only one cell 100 therein. Since the specific configuration and coupling relationship of the lower plate 111, the side plate 113 and the upper plate 114 constituting the frame assembly 110 is the same as the above-described embodiment, a detailed description thereof will be omitted.
- the battery module including the frame assembly 110 provided in a cell unit has an edge portion of the upper plate 114 with the unit cell 100 disposed in the frame assembly 110.
- the upper end of the side plate 113 is manufactured by welding. Accordingly, the weld portion W is formed at the corner portion where the side plate 113 and the upper plate 114 meet.
- the battery module according to the preferred embodiment of the present invention having the above configuration is provided in a form in which the frame assembly 110 is coupled to a single cell 100 or a plurality of cells 100.
- the frame assembly 110 may be lightweight because the lower plate 111, the side plate 113, and the upper plate 114 formed by a metal sheet (or metal plate) such as an aluminum plate are organically combined.
- the upper plate 114 on the top of the side plate 113 is laser welding or ultrasonic welding and Are joined by the same welding process.
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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)
- Inorganic Chemistry (AREA)
- Battery Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
Claims (14)
- 적어도 하나 이상의 셀; 및상기 셀의 하단면을 지지하는 하부 플레이트와, 상기 하부 플레이트의 어느 양쪽 가장자리단으로부터 수직하게 연장되어 상기 셀의 최외측에 인접하게 배치되는 사이드 플레이트와, 상기 사이드 플레이트의 상단에 결합되어 상기 셀의 상부를 덮는 상부 플레이트를 구비한 프레임 어셈블리;를 포함하는 배터리 모듈.
- 제1항에 있어서,상기 상부 플레이트는 상기 사이드 플레이트의 상단에 가장자리 부분이 용접되어 있는 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 하부 플레이트의 다른 양쪽 가장자리단으로부터 수직하게 연장되어 셀의 이탈을 방지하는 제1 가이드 플레이트;를 더 포함하는 배터리 모듈.
- 제3항에 있어서,상기 제1 가이드 플레이트는 상기 하부 플레이트로부터 절곡되어 일체로 형성된 것을 특징으로 하는 배터리 모듈.
- 제3항에 있어서,상기 상부 플레이트의 가장자리단으로부터 수직하게 연장되어 셀의 이탈을 방지하는 제2 가이드 플레이트;를 더 포함하는 배터리 모듈.
- 제5항에 있어서,상기 제2 가이드 플레이트는 상기 상부 플레이트로부터 절곡되어 일체로 형성된 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 사이드 플레이트는 상기 하부 플레이트로부터 절곡되어 일체로 형성된 것을 특징으로 하는 배터리 모듈.
- 배터리 모듈의 외곽에서 적어도 하나 이상의 셀을 지지하는 프레임 어셈블리에 있어서,셀의 하단면을 지지하는 하부 플레이트;상기 하부 플레이트의 어느 양쪽 가장자리단으로부터 수직하게 연장되어 상기 셀의 최외측에 인접하게 배치되는 사이드 플레이트; 및상기 셀의 상부를 덮도록 배치되고 상기 사이드 플레이트의 상단에 양쪽 가장자리단이 결합된 상부 플레이트;를 포함하는 것을 특징으로 하는 배터리 모듈의 프레임 어셈블리.
- 제8항에 있어서,상기 상부 플레이트는 상기 사이드 플레이트의 상단에 가장자리 부분이 용접되어 있는 것을 특징으로 하는 배터리 모듈의 프레임 어셈블리.
- 제8항에 있어서,상기 하부 플레이트의 다른 양쪽 가장자리단으로부터 수직하게 연장되어 셀의 이탈을 방지하는 제1 가이드 플레이트;를 더 포함하는 배터리 모듈의 프레임 어셈블리.
- 제10항에 있어서,상기 제1 가이드 플레이트는 상기 하부 플레이트로부터 절곡되어 일체로 형성된 것을 특징으로 하는 배터리 모듈의 프레임 어셈블리.
- 제11항에 있어서,상기 상부 플레이트의 가장자리단으로부터 수직하게 연장되어 셀의 이탈을 방지하는 제2 가이드 플레이트;를 더 포함하는 배터리 모듈의 프레임 어셈블리.
- 제12항에 있어서,상기 제2 가이드 플레이트는 상기 상부 플레이트로부터 절곡되어 일체로 형성된 것을 특징으로 하는 배터리 모듈의 프레임 어셈블리.
- 제8항에 있어서,상기 사이드 플레이트는 상기 하부 플레이트로부터 절곡되어 일체로 형성된 것을 특징으로 하는 배터리 모듈의 프레임 어셈블리.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201780005702.0A CN108475745B (zh) | 2016-08-12 | 2017-08-11 | 具有改进的框架结构的电池模块及其框架组件 |
| EP17839863.2A EP3389112B1 (en) | 2016-08-12 | 2017-08-11 | Battery module having improved frame structure |
| ES17839863T ES3037503T3 (en) | 2016-08-12 | 2017-08-11 | Battery module having improved frame structure |
| US16/064,183 US10985421B2 (en) | 2016-08-12 | 2017-08-11 | Battery module with improved frame structure and frame assembly therefor |
| JP2018556778A JP6791982B2 (ja) | 2016-08-12 | 2017-08-11 | フレーム構造が改善したバッテリーモジュール及びこのためのフレームアセンブリー |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160103079A KR102065098B1 (ko) | 2016-08-12 | 2016-08-12 | 프레임의 구조가 개선된 배터리 모듈 및 이를 위한 프레임 어셈블리 |
| KR10-2016-0103079 | 2016-08-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018030846A1 true WO2018030846A1 (ko) | 2018-02-15 |
Family
ID=61163180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2017/008759 Ceased WO2018030846A1 (ko) | 2016-08-12 | 2017-08-11 | 프레임의 구조가 개선된 배터리 모듈 및 이를 위한 프레임 어셈블리 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US10985421B2 (ko) |
| EP (1) | EP3389112B1 (ko) |
| JP (1) | JP6791982B2 (ko) |
| KR (1) | KR102065098B1 (ko) |
| CN (1) | CN108475745B (ko) |
| DE (3) | DE202017007749U1 (ko) |
| ES (1) | ES3037503T3 (ko) |
| HU (1) | HUE072273T2 (ko) |
| WO (1) | WO2018030846A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3690979A4 (en) * | 2018-05-03 | 2021-03-03 | Lg Chem, Ltd. | BATTERY MODULE AND BATTERY PACK WITH IT |
| US11888168B2 (en) * | 2019-06-14 | 2024-01-30 | Lg Energy Solution, Ltd. | Battery module and manufacturing method thereof |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102267606B1 (ko) * | 2017-11-30 | 2021-06-21 | 주식회사 엘지에너지솔루션 | 셀 조립체에 대한 초기 가압력 강화 구조를 갖는 배터리 모듈 및 그 제조방법 |
| KR102726473B1 (ko) * | 2018-12-20 | 2024-11-06 | 주식회사 엘지에너지솔루션 | 두께 편차가 있는 전지팩 하우징 및 이를 포함하는 전지팩 |
| CN210092151U (zh) * | 2019-03-28 | 2020-02-18 | 泰科电子日本合同会社 | 用于电池模组的连接组件及电池模组 |
| KR102212849B1 (ko) | 2019-04-22 | 2021-02-05 | (주)휴민텍 | 프레임 용접기용 지그장치 |
| KR102187278B1 (ko) | 2019-04-22 | 2020-12-04 | (주)휴민텍 | 프레임 삽입장치 |
| EP3923370A4 (en) * | 2019-06-12 | 2022-04-20 | LG Energy Solution, Ltd. | BATTERY MODULE, METHOD OF MANUFACTURE THEREOF AND BATTERY PACK |
| KR102465865B1 (ko) * | 2019-06-12 | 2022-11-10 | 주식회사 엘지에너지솔루션 | 전지 모듈, 이의 제조 방법 및 전지팩 |
| KR102472690B1 (ko) | 2019-07-19 | 2022-11-29 | 주식회사 엘지에너지솔루션 | 전지 모듈 및 이를 포함하는 전지팩 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20190006647A1 (en) | 2019-01-03 |
| EP3389112A4 (en) | 2018-12-12 |
| DE202017007747U1 (de) | 2025-12-01 |
| EP3389112B1 (en) | 2025-06-25 |
| JP2019502250A (ja) | 2019-01-24 |
| CN108475745A (zh) | 2018-08-31 |
| US10985421B2 (en) | 2021-04-20 |
| DE202017007736U1 (de) | 2025-09-01 |
| DE202017007749U1 (de) | 2025-12-01 |
| EP3389112A1 (en) | 2018-10-17 |
| CN108475745B (zh) | 2022-07-26 |
| HUE072273T2 (hu) | 2025-11-28 |
| KR20180018109A (ko) | 2018-02-21 |
| ES3037503T3 (en) | 2025-10-02 |
| KR102065098B1 (ko) | 2020-01-10 |
| JP6791982B2 (ja) | 2020-11-25 |
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