WO2024253457A1 - 용접용 마스크 지그 - Google Patents
용접용 마스크 지그 Download PDFInfo
- Publication number
- WO2024253457A1 WO2024253457A1 PCT/KR2024/007798 KR2024007798W WO2024253457A1 WO 2024253457 A1 WO2024253457 A1 WO 2024253457A1 KR 2024007798 W KR2024007798 W KR 2024007798W WO 2024253457 A1 WO2024253457 A1 WO 2024253457A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- groove
- collector plate
- mask jig
- welding mask
- paragraph
- 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
- 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
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/066—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms by using masks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
Definitions
- the present invention relates to a welding mask jig, and more specifically, to a mask jig used for welding a current collector plate.
- Secondary batteries which have high applicability according to product group and electrical characteristics such as high energy density, are widely used in portable devices as well as electric vehicles (EVs) and hybrid electric vehicles (HEVs) driven by electrical power sources.
- EVs electric vehicles
- HEVs hybrid electric vehicles
- a battery module or battery pack can be configured by connecting multiple batteries in series and/or in parallel.
- the number of batteries included in a battery module or battery pack and the electrical connection type can be set in various ways depending on the required output voltage and/or charge/discharge capacity.
- cylindrical, square, and pouch-shaped batteries are known.
- an insulator, a separator is interposed between the positive and negative electrodes, and this is wound to form a jelly-roll-shaped electrode assembly, which is then inserted into a battery can together with an electrolyte to form a battery.
- the battery can and the cap sealing the opening of the battery can may have opposite polarities, and may function as a positive terminal and a negative terminal, respectively.
- the positive terminal may be a cap
- the negative terminal may be a battery can.
- the opposite configuration is also possible.
- the electrode assembly may be provided with electrode tabs at both axial ends, and a collector plate may be welded to the electrode tabs, and may be electrically connected to the battery can and the cap through the collector plate.
- a mask jig may be used when welding the collector plate and the electrode tab.
- An object of the present invention is to provide a welding mask jig capable of performing laser welding on a current collector plate including a lead portion.
- Another problem to be solved by the present invention is to provide a welding mask jig that allows the lead portion of a current collector plate to be bent at a preset position.
- a welding mask jig may include: a main body; a receiving groove formed on one surface of the main body to a predetermined depth and configured to receive a collector plate; and at least one through hole formed from the other surface of the main body to the receiving groove and configured to allow a laser beam to be incident on the collector plate located within the receiving groove.
- the receiving groove may include: a first groove communicating with the through hole; and a second groove extending radially outward from the first groove.
- a protrusion configured to press the lead portion of the collector plate may be formed on the inner end of the second groove.
- the above protrusion can be formed parallel to the width of the second groove.
- the length of the above projection may be more than half the width of the second groove.
- the end of the above projection may be positioned on the same plane as the inner surface of the first groove, or may protrude further than the inner surface of the first groove.
- the inner end of the second groove may be located further inward than the inner circumference of the first groove.
- the first groove may be configured to receive a body welded to the electrode assembly on the collector plate, and the second groove may be configured to receive a lead portion extending from the collector plate in a radially outer direction of the body.
- the above second groove can be formed deeper than the above first groove.
- the second groove may include a section whose depth increases as it moves away from the inner end of the second groove.
- the inner end of the second groove may be positioned on the same plane as the inner surface of the first groove, or may protrude further than the inner surface of the first groove.
- the outer end of the second groove can be opened.
- the receiving groove of the mask jig may include a second groove corresponding to the lead portion of the current collector plate. Accordingly, during the welding process, the lead portion of the current collector plate may not interfere with the main body of the mask jig.
- the projection formed in the second groove of the mask jig or the inner end of the second groove can press the lead portion of the current collector plate. As a result, the lead portion can be bent at an accurate position, so the processability can be improved.
- configurations according to preferred embodiments of the present invention may include effects that can be easily predicted by those skilled in the art.
- Figure 1 is a cross-sectional diagram schematically illustrating the interior of a battery cell.
- Figure 2 is a plan view of the first collector plate illustrated in Figure 1.
- FIG. 3 is a bottom view illustrating a welding mask jig and a collector plate according to one embodiment of the present invention.
- Figure 4 is a cross-sectional view taken along line A-A' of Figure 3.
- FIGS. 5 and 6 are cross-sectional views illustrating a welding mask jig and a collector plate according to other embodiments of the present invention.
- FIG. 7 is a cross-sectional view showing a welding mask jig and a collector plate together according to another embodiment of the present invention.
- FIG. 1 is a cross-sectional view schematically illustrating the interior of a battery cell
- FIG. 2 is a plan view of the first collector plate illustrated in FIG. 1.
- the battery cell (1) may be a cylindrical secondary battery.
- the battery cell (1) may include an electrode assembly (10) and a battery can (20) that accommodates the electrode assembly (10).
- the electrode assembly (10) may include an anode, a cathode, and a separator interposed between the anode and the cathode.
- the electrode assembly (10) may be provided with a first electrode tab (11) connected to one of the anode and the cathode, and a second electrode tab (12) connected to the other of the anode and the cathode.
- the electrode assembly (10) may be of a jelly-roll type.
- the electrode assembly (10) may be manufactured by winding a laminate in which a positive electrode, a separator, a negative electrode, and a separator are sequentially laminated. It is preferable that the electrode assembly (10) has a height to diameter ratio of 1 or more, but is not limited thereto.
- a hollow space (C) formed long in the height direction may be formed in the center of the electrode assembly (10).
- a separator may be positioned at the outermost surface of the electrode assembly (10).
- the first electrode tab (11) and the second electrode tab (12) may be provided at both ends of the electrode assembly (10) in the axial direction. More specifically, the uncoated portion of one of the positive and negative electrodes may be located at one end of the electrode assembly (10) and may function as the first electrode tab (11). The uncoated portion of the other of the positive and negative electrodes may be located at the other end of the electrode assembly (10) and may function as the second electrode tab (12).
- Each electrode tab (11)(12) may extend along the winding direction of the electrode assembly (10).
- each electrode tab (11)(12) may include a plurality of foil flags arranged along the winding direction of the electrode assembly (10).
- Each electrode tab (11)(12) can be bent toward the hollow (C) of the electrode assembly (10).
- the bent first electrode tab (11) can define the upper surface of the electrode assembly (10)
- the bent second electrode tab (12) can define the lower surface of the electrode assembly (10).
- a first collector plate (100) can be coupled to a first electrode tab (11) in a folded state, and a second collector plate (101) can be coupled to a second electrode tab (12) in a folded state.
- the electrode assembly (10) can be accommodated in a battery can (20) in a state in which each collector plate (100) (101) is coupled to each electrode tab (11) (12).
- the first electrode tab (11) may be the uncharged portion of the positive electrode
- the second electrode tab (12) may be the uncharged portion of the negative electrode
- the first collector plate (100) may be named as the positive collector plate
- the second collector plate (101) may be named as the negative collector plate.
- the battery can (20) may be an open cylindrical can having an opening formed at one end.
- Fig. 1 the case where the opening is located at the top will be described.
- the lower portion of the battery can (20) may be provided with a bottom surface, and the upper portion may be formed with an opening.
- the electrode assembly (10) may be accommodated in the battery can (20) together with an electrolyte through the opening.
- the battery can (20) may have a conductive material such as metal.
- the battery can (20) may be electrically connected to the second electrode tab (12) through the second current collector plate (101). More specifically, the second current collector plate (101) may be welded to the second electrode tab (12) and the inner bottom surface of the battery can (20). Therefore, the battery can (20) may have the same polarity as the second electrode tab (12).
- a beading portion (21) may be formed in the battery can (20).
- the beading portion (21) may be formed by pressing the periphery of the battery can (20) inwardly with a radius.
- the inner diameter of the beading portion (21) may be smaller than the inner diameter of the battery can (20).
- the beading portion (21) may be formed in a state in which the electrode assembly (10) is accommodated in the battery can (20).
- the electrode assembly (10) may be positioned between the bottom surface of the battery can (20) and the beading portion (21) with respect to the height direction of the battery can (20).
- the beading portion (21) may prevent the electrode assembly (10) from being separated from the opening of the battery can (20).
- a crimping portion (22) may be formed in the battery can (20).
- the crimping portion (22) may be formed adjacent to the beading portion (21).
- the crimping portion (22) may be formed by bending the upper end of the circumference of the battery can (20) inwardly along a radius.
- the inner circumference of the crimping portion (22) may define an opening of the battery can (20).
- the crimping portion (22), together with the beading portion (21), may restrain a gasket (40) to be described later.
- the battery cell (1) may include a first current collector plate (100) that electrically connects a terminal (30) and a first electrode tab (11) of an electrode assembly (10).
- the battery cell (1) may include a second current collector plate (101) that electrically connects a battery can (20) and a second electrode tab (12) of an electrode assembly (10).
- the battery cell (1) may include a terminal (30) having an opposite polarity to the battery can (20).
- the terminal (30) may have a conductive material, such as metal, similar to the battery can (20).
- the terminal (30) may be insulated from the battery can (20) by a gasket (40).
- the terminal (30) may block an opening of the battery can (20).
- the terminal (30) can be electrically connected to the first electrode tab (11) through the first collector plate (100).
- the first collector plate (100) can be welded to the first electrode tab (11) and the terminal (30). Accordingly, the terminal (30) can have the same polarity as the first electrode tab (11).
- the terminal (30) may include a terminal body (31) at least part of which is exposed to the outside of the battery can (20), and a connecting portion (32) coupled to the terminal body (31) and to which the first collector plate (100) is connected.
- the terminal body (31) and the connecting portion (32) may be provided as a single unit. However, this is not limited to the present invention, and the terminal body (31) and the connecting portion (32) may be provided as separate members and then coupled to each other.
- the terminal body (31) may have an approximately circular shape.
- the central portion of the terminal body (31) may protrude upward and be exposed to the outside of the battery can (20).
- the central portion of the terminal body (31) may protrude upward of the battery can (20).
- an external terminal such as a bus bar, may be electrically connected by connecting to the terminal body (31) from the outside of the battery cell (1).
- the edge of the terminal body (31) can be fixed and supported by a gasket (40).
- the connecting portion (32) can be connected to the lower side of the terminal body (31).
- the first collector plate (100), more specifically, the lead portion (120) of the first collector plate (100) can be connected to the connecting portion (32).
- the lead portion (120) can be welded to the connecting portion (32).
- the battery cell (1) may include a gasket (40) that insulates the battery can (20) and the terminal (30).
- the gasket (40) may have an approximately ring shape.
- the gasket (40) may be formed integrally as shown in Fig. 1, or may include a plurality of separate members.
- At least a portion of the gasket (40) may be secured between the beading portion (21) and the crimping portion (22) of the battery can (20). Additionally, an edge of the terminal (30), more specifically, an edge of the terminal body (31), may be secured to the gasket (40).
- the polarities of the battery can (20) and the terminal (30) can be maintained different from each other by the gasket (40), and a short circuit can be prevented.
- the battery cell (1) may include an insulator (50) that insulates the first collector plate (100) and the battery can (20).
- the insulator (50) may have an approximately circular shape. An edge of the insulator (50) may be positioned between the beading portion (21) of the battery can (20) and the first collector plate (100). Accordingly, the insulator (50) may insulate the first collector plate (100) and the beading portion (21) of the battery can (20).
- the insulator (50) may be provided with a protrusion formed to protrude in the axial direction of the electrode assembly (10) from the edge of the insulator (50).
- the protrusion may protrude between the inner circumference of the battery can (20) and the edge of the first collector plate (100). Accordingly, the inner circumference of the first collector plate (100) and the battery can (20) may be insulated.
- An opening (51) through which a lead portion (120) of a first collector plate (100) passes may be formed in the insulator (50).
- the lead portion (120) may be connected to a terminal (30), more specifically, a connecting portion (32), through the opening (51).
- the first collector plate (100) may include a main body (110) welded to an electrode assembly (10) and a lead portion (120) connected to the main body (110).
- the main body (110) can be welded to the first electrode tab (11) (hereinafter, 'electrode tab').
- the main body (110) can have an approximately circular shape.
- the lead portion (120) may be extended to protrude in a radially outer direction of the main body (110).
- the lead portion (120) may have a constant width and may extend from the main body (110).
- the main body (110) and the lead portion (120) may be formed integrally.
- a recessed portion (111) that is sunken inwardly from the outer circumference may be formed in the main body (110).
- the lead portion (120) may protrude in the radially outer direction from the recessed portion (111). Accordingly, the inner end of the lead portion (120) may be located inwardly from the edge of the main body (110).
- a predetermined gap (g) can be formed between the inner two edges of the recessed portion (111) and the two edges of the lead portion (120). Accordingly, interference between the lead portion (120) and the main body (110) can be prevented during the process of folding the lead portion (120).
- a center hole (112) facing the hollow (C) of the electrode assembly (10) may be formed in the main body (110).
- the diameter of the center hole (112) may be larger than the diameter of the hollow (C).
- the center hole (112) and the hollow (C) may function as a passage into which a welding rod (not shown) for welding the second electrode plate (101) to the inner bottom surface of the battery can (20) is inserted.
- At least one through hole (113) located outside the center hole (112) may be formed.
- a plurality of through holes (113) may be arranged along the circumferential direction of the main body (110).
- the through holes (113) may function as passages through which the electrolyte passes. Accordingly, the impregnation property of the electrolyte into the electrode assembly (10) may be improved.
- the main body (110) may be provided with a welding portion (114) welded to the electrode tab (11). More specifically, the main body (110) may be laser-welded to the electrode tab (11) while in close contact with the electrode tab (11) bent by a mask jig (200) (see FIG. 3) to be described later, thereby forming the welding portion (114).
- a plurality of welds (114) may be formed along the circumferential direction of the main body (110). Some of the plurality of welds (114) may be positioned between the plurality of through holes (113) with respect to the circumferential direction of the main body (110). Others of the plurality of welds (114) may be positioned between the recessed portion (111) and the through holes (113) with respect to the circumferential direction of the main body (110).
- the main body (110) of the current collector plate (100) can be well welded to the electrode tab (11) as a whole.
- the main body (110) and the electrode tab (11) can be prevented from being separated during the process of bending the lead tab (120).
- FIG. 3 is a bottom view showing a welding mask jig and a collector plate together according to one embodiment of the present invention
- FIG. 4 is a cross-sectional view taken along line A-A' of FIG. 3.
- a welding mask jig (200) (hereinafter, “mask jig”) according to one embodiment of the present invention may be a mask jig for laser welding a current collector plate (100) to an electrode assembly (10), more specifically, to an electrode tab (11) of the electrode assembly (10).
- the mask jig (200) may include a main body (210), a receiving groove (220) sunken to a predetermined depth in one surface (e.g., bottom surface) of the main body (210), and a through hole (230) formed penetrating from the other surface (e.g., top surface) of the main body (210) to the receiving groove (220).
- the main body (210) may be a rigid body having a predetermined thickness.
- the thickness of the main body (210) may be much thicker than the thickness of the current collector plate (100).
- the main body (210) may have an approximately square shape, but is not limited thereto.
- a fastening part (240) that is fastened to an external device may be provided on both sides of the main body (210).
- the fastening part (240) may be formed integrally with the main body (210), but is not limited thereto.
- Each fastening part (240) may be provided with a plurality of fastening holes (241).
- the receiving groove (220) may be sunk to a predetermined depth in one surface of the main body (210).
- the depth of the receiving groove (220) may be the same as or similar to the thickness of the collector plate (100).
- the present invention is not limited thereto, and when the inner diameter of the receiving groove (220) is larger than the outer diameter of the electrode assembly (10), the depth of the receiving groove (220) may be larger than the thickness of the collector plate (100).
- the inner diameter of the receiving groove (220) is smaller than the outer diameter of the electrode assembly (10) and larger than the outer diameter of the collector plate (100), the depth of the receiving groove (220) may be smaller than the thickness of the collector plate (100).
- the collector plate (100) may be closely pressed into the interior of the receiving groove (220).
- the shape of the receiving groove (220) may correspond to the shape of the collector plate (100).
- the receiving groove (220) may include a first groove (221) communicating with the through hole (230) and a second groove (222) extending radially outward from the first groove (221).
- the first groove (221) may be configured to receive the main body (110) of the collector plate (100).
- the first groove (221) may have a shape corresponding to the main body (110) of the collector plate (100).
- the second groove (222) may be configured to receive the lead portion (120) of the collector plate (100).
- the second groove (222) may have a shape corresponding to the lead portion (120) of the collector plate (100).
- the lead part (120) of the current collector plate (100) may not interfere with the main body (210) of the mask jig (200).
- the mask jig (200) may press the current collector plate (100) toward the electrode assembly (10) while the current collector plate (100) is accurately aligned.
- the inner end of the second groove (222) may be located inside the inner circumference of the first groove (221). This may correspond to the inner end of the lead portion (120) in the current collector (100) being located inside the edge of the main body (110). Accordingly, the protrusion (250) described below may press the inner end of the lead portion (120).
- the second groove (222), like the lead portion (120), may have a constant width (W1).
- the width (W1) of the second groove (222) may be the same as or similar to the width of the lead portion (120).
- the outer end of the second groove (222) can be opened. Accordingly, even if the length of the lead portion (120) is sufficiently long, the lead portion (120) can protrude outward from the second groove (222) and not interfere with the main body (210) of the mask jig (200).
- the through hole (230) can be formed from the other surface of the main body (210) to the receiving groove (220), more specifically, the first groove (221).
- a laser unit (not shown) can form a weld (114) by irradiating a laser beam to the main body (110) of the current collector (100) through the through hole (230).
- the diameter of the through hole (230) may correspond to or be smaller than the diameter of the first groove (221).
- a step may be formed between the inner circumference of the through hole (230) and the inner circumference of the first groove (221). By the step, the edge of the main body (110) of the current collector plate (100) may be pressed and brought into close contact with the electrode assembly (10).
- the lead portion (120) of the collector plate (100) can be bent relative to the main body (110) and connected to the terminal (30).
- the portion where the bending occurs in the lead portion (120) was determined randomly in the past, there was a problem of reduced fairness.
- a protrusion (250) configured to press the lead portion (120) of the collector plate (100) may be formed in the second groove (222).
- the protrusion (250) may be formed at the inner end of the second groove (222).
- the protrusion (250) can press the lead portion (120), more specifically, the inner end of the lead portion (120).
- the protrusion (250) can be formed parallel to the width of the second groove (222). That is, a bending line parallel to the width of the lead portion (120) can be formed in the lead portion (120) pressed by the protrusion (250). Accordingly, the point pressed by the protrusion (250) in the lead portion (120) can be easily bent.
- the length of the protrusion (250) can be more than half the width of the second groove (222). Accordingly, the bending line formed in the lead portion (120) can be formed sufficiently long, and the bending of the lead portion (120) can be performed reliably.
- the end of the protrusion (250) may be positioned on the same plane as the inner surface of the first groove (221) or may protrude further than the inner surface of the first groove (221). As a result, the protrusion (250) can reliably press the lead portion (120) of the current collector plate (100).
- the second groove (222) can be formed deeper than the first groove (221). Accordingly, a portion of the lead portion (220) located outside the protrusion (250) can be slightly raised within the second groove (222). That is, a bending line can be formed more reliably in the area pressed by the protrusion (250).
- the lead part (120) can be bent at an accurate position, the processability can be improved.
- a bend line can be formed in the lead part (120) during the welding process using the mask jig (200) without a separate process of forming a bend in the lead part (120).
- FIGS. 5 and 6 are cross-sectional views illustrating a welding mask jig and a collector plate according to other embodiments of the present invention.
- the second groove (222) of the mask jig (200') may include a section whose depth increases as it gets further away from the inner end (222a) of the second groove (222). That is, in the second groove (222), the inner end (222a) may be the most protruding portion.
- the inner end (222a) of the second groove (222) can press the lead part (220).
- the inner end (222a) of the second groove (222) can replace the role of the protrusion (250) described above.
- the inner end (222a) of the second groove (222) can press the lead portion (120), more specifically, the inner end of the lead portion (120).
- the inner end (222a) of the second groove (222) may be positioned on the same plane as the inner surface of the first groove (221) or may protrude further than the inner surface of the first groove (221). As a result, the inner end (222a) of the second groove (222) can reliably press the lead portion (120) of the current collector plate (100).
- the second groove (222) includes a section whose depth increases as it gets further away from the inner end (222a), a portion of the lead portion (220) located outside the inner end (222a) of the second groove (222) can be slightly raised within the second groove (222). In other words, a bending line can be formed more reliably in a portion pressed by the inner end (222a) of the second groove (222).
- the second groove (222) includes a section whose depth increases as it gets further away from the inner end (222a) of the second groove (222), and it is of course also possible to have a configuration in which a protrusion (250) is added to the inner end (222a) of the second groove (222).
- FIG. 7 is a cross-sectional view showing a welding mask jig and a collector plate together according to another embodiment of the present invention.
- a mask jig (200") may not include a configuration (e.g., the protrusion (250) described above) that presses the lead portion (120) of the current collector plate (100).
- collector plate 110 body (of collector plate)
- Body 220 Receiving Home
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Abstract
Description
Claims (11)
- 본체;상기 본체의 일면에서 소정의 깊이로 함몰되며 집전판이 수용되도록 구성된 수용홈; 및상기 본체의 타면에서부터 상기 수용홈까지 관통 형성되며, 상기 수용홈 내에 위치한 상기 집전판에 레이저 빔이 입사 가능하도록 구성된 적어도 하나의 관통공을 포함하고,상기 수용홈은,상기 관통공과 연통되는 제1홈; 및상기 제1홈에서 반경 외측으로 연장되는 제2홈을 포함하는 용접용 마스크 지그.
- 제 1 항에 있어서,상기 제2홈의 내측 단부에는, 상기 집전판의 리드부를 누르도록 구성된 돌기가 형성되는 용접용 마스크 지그.
- 제 2 항에 있어서,상기 돌기는, 상기 제2홈의 폭과 나란하게 형성되는 용접용 마스크 지그.
- 제 3 항에 있어서,상기 돌기의 길이는, 상기 제2홈의 폭의 절반 이상인 용접용 마스크 지그.
- 제 2 항에 있어서,상기 돌기의 끝단은, 상기 제1홈의 내면과 동일 평면상에 위치하거나, 상기 제1홈의 내면보다 더 돌출되는 용접용 마스크 지그.
- 제 1 항에 있어서,상기 제2홈의 내측 단부는, 상기 제1홈의 내둘레보다 내측에 위치하는 용접용 마스크 지그.
- 제 1 항에 있어서,상기 제1홈은, 상기 집전판에서 전극 조립체와 용접되는 본체가 수용되도록 구성되고,상기 제2홈은, 상기 집전판에서 상기 본체의 반경 외측 방향으로 돌출되게 연장되는 상기 리드부가 수용되도록 구성된 용접용 마스크 지그.
- 제 1 항에 있어서,상기 제2홈은, 상기 제1홈보다 더 깊게 형성되는 용접용 마스크 지그.
- 제 1 항에 있어서,상기 제2홈은, 상기 제2홈의 내측 단부에서 멀어질수록 깊이가 깊어지는 구간을 포함하는 용접용 마스크 지그.
- 제 9 항에 있어서,상기 제2홈의 내측 단부는, 상기 제1홈의 내면과 동일 평면상에 위치하거나, 상기 제1홈의 내면보다 더 돌출되는 용접용 마스크 지그.
- 제 1 항에 있어서,상기 제2홈의 외측 단부는 개방된 용접용 마스크 지그.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24819608.1A EP4696451A1 (en) | 2023-06-09 | 2024-06-07 | Welding mask jig |
| CN202480033313.9A CN121152705A (zh) | 2023-06-09 | 2024-06-07 | 焊接掩模夹具 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20230074316 | 2023-06-09 | ||
| KR10-2023-0074316 | 2023-06-09 | ||
| KR1020240073997A KR20240174848A (ko) | 2023-06-09 | 2024-06-05 | 용접용 마스크 지그 |
| KR10-2024-0073997 | 2024-06-05 |
Publications (1)
| Publication Number | Publication Date |
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| WO2024253457A1 true WO2024253457A1 (ko) | 2024-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2024/007798 Ceased WO2024253457A1 (ko) | 2023-06-09 | 2024-06-07 | 용접용 마스크 지그 |
Country Status (3)
| Country | Link |
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| EP (1) | EP4696451A1 (ko) |
| CN (1) | CN121152705A (ko) |
| WO (1) | WO2024253457A1 (ko) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140113185A1 (en) * | 2011-06-28 | 2014-04-24 | Nippon Chemi-Con Corporation | Electricity storage device and method for manufacturing electricity storage device |
| JP2020191255A (ja) * | 2019-05-23 | 2020-11-26 | 株式会社豊田自動織機 | 電気抵抗検査方法 |
| CN112059420A (zh) * | 2020-11-16 | 2020-12-11 | 武汉逸飞激光股份有限公司 | 一种集流盘焊接压头及其焊接方法 |
| CN115781074A (zh) * | 2022-12-29 | 2023-03-14 | 楚能新能源股份有限公司 | 一种集流盘焊接用夹具及集流盘焊接设备 |
| CN218904030U (zh) * | 2022-10-25 | 2023-04-25 | 海目星(江门)激光智能装备有限公司 | 集流盘焊接治具及激光焊接设备 |
| KR20230074316A (ko) | 2021-11-17 | 2023-05-26 | 최용준 | 자동 높이 조절 키오스크 |
| KR20240073997A (ko) | 2019-06-18 | 2024-05-27 | 더 닐슨 컴퍼니 (유에스) 엘엘씨 | 스테가노그래피적으로 인코딩된 데이터를 기초로 사용하여 핑거프린트-기반 채널 다중 매칭의 명확화 |
-
2024
- 2024-06-07 WO PCT/KR2024/007798 patent/WO2024253457A1/ko not_active Ceased
- 2024-06-07 CN CN202480033313.9A patent/CN121152705A/zh active Pending
- 2024-06-07 EP EP24819608.1A patent/EP4696451A1/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140113185A1 (en) * | 2011-06-28 | 2014-04-24 | Nippon Chemi-Con Corporation | Electricity storage device and method for manufacturing electricity storage device |
| JP2020191255A (ja) * | 2019-05-23 | 2020-11-26 | 株式会社豊田自動織機 | 電気抵抗検査方法 |
| KR20240073997A (ko) | 2019-06-18 | 2024-05-27 | 더 닐슨 컴퍼니 (유에스) 엘엘씨 | 스테가노그래피적으로 인코딩된 데이터를 기초로 사용하여 핑거프린트-기반 채널 다중 매칭의 명확화 |
| CN112059420A (zh) * | 2020-11-16 | 2020-12-11 | 武汉逸飞激光股份有限公司 | 一种集流盘焊接压头及其焊接方法 |
| KR20230074316A (ko) | 2021-11-17 | 2023-05-26 | 최용준 | 자동 높이 조절 키오스크 |
| CN218904030U (zh) * | 2022-10-25 | 2023-04-25 | 海目星(江门)激光智能装备有限公司 | 集流盘焊接治具及激光焊接设备 |
| CN115781074A (zh) * | 2022-12-29 | 2023-03-14 | 楚能新能源股份有限公司 | 一种集流盘焊接用夹具及集流盘焊接设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4696451A1 (en) | 2026-02-18 |
| CN121152705A (zh) | 2025-12-16 |
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