WO2018208101A1 - 초크 코일 - Google Patents
초크 코일 Download PDFInfo
- Publication number
- WO2018208101A1 WO2018208101A1 PCT/KR2018/005376 KR2018005376W WO2018208101A1 WO 2018208101 A1 WO2018208101 A1 WO 2018208101A1 KR 2018005376 W KR2018005376 W KR 2018005376W WO 2018208101 A1 WO2018208101 A1 WO 2018208101A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wire
- terminal
- flange
- terminal electrode
- core
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
Definitions
- the present invention relates to choke coils, and more particularly, to choke coils that can be mounted on vehicles and the like to ensure stable characteristics.
- a terminal electrode was formed on the flange of the drum core by plating or soldering, a pair of wires were wound around the drum core, and the end of the wire was soldered to the terminal electrode.
- the terminal electrode of such a choke coil is attached to the wiring board of a vehicle by soldering.
- a choke coil is manufactured by inserting a "c" shaped terminal electrode into a flange and fastening it, fixing a terminal end of the wire with a part of the terminal electrode, and forming a weld on the terminal electrode by using laser welding or arc welding.
- the terminal electrodes are provided on the upper and lower portions of the flange, the first and second wires wound on the core are drawn out to the upper outer side of the core for joining to the terminal electrodes. At this time, the first wire wound in contact with the core moves to form an angle of 0 ° or more in the diagonal direction from the core to move to the upper portion of the terminal electrode.
- the second wire is wound on the first wire, the second wire is positioned above the diagonal direction of the first wire so that the second wire presses the first wire. Accordingly, a problem arises in that the first wire fixed on the terminal electrode is pressed by the force of the second wire and thus the position is displaced.
- the terminal electrode and the core connected to the wiring board are spaced apart in order to ensure heat resistance due to the difference in thermal expansion between the core and the terminal electrode, and thus, the 'c'-shaped terminal electrode is not formed when a severe shock or vibration occurs.
- the flange can be released in the direction. That is, the flange may be separated from the terminal electrode in the direction exposed by the "-" shaped terminal electrode.
- vibrations and shocks are often required and high reliability is required.
- the present invention provides a choke coil capable of preventing misalignment of the first wire by a second wire wound on the first wire.
- the present invention provides a choke coil in which terminal electrodes are formed on the side of the flange and wires are drawn to the flange side.
- the present invention provides a choke coil in which the terminal electrode is formed on the side of the flange to prevent the first wire from being pressed by the second wire when the wire is drawn out.
- Choke coil is a core; Flanges provided at both ends of the core in one direction; A terminal electrode coupled to the flange; And a wire wound around the core, the end of which is drawn out onto the terminal electrode, wherein the wire is drawn out onto the terminal electrode on the side of the flange.
- the terminal electrode may include a first terminal in contact with a second surface opposite to the first surface in contact with the core of the flange, a second terminal in contact with one surface in a vertical direction of the flange, and a horizontal direction of the flange. And a third terminal in contact with the side surface, wherein the wire is brought into contact with the third terminal.
- the flange further includes a groove formed in the side surface.
- the terminal electrode further includes a guide groove formed in the third terminal to be fastened to the groove of the flange.
- the guide portion is provided below the flange.
- the guide portion at least partially protrudes out of the flange.
- At least a portion of the flange protrudes and further comprises a guide for guiding the drawing of the wire.
- the second terminal extends from the first terminal, and the third terminal extends from the second terminal.
- the opening is formed to be wider than the width of the wire, it is formed shorter than the length of the wire.
- It further comprises a weld formed on the distal end of the wire.
- the semiconductor device may further include an insulating layer provided on at least one region between the welding portion and the terminal electrode.
- flanges are provided at both ends of the core around which the wire is wound, and terminal electrodes are fastened to the sides of the flange.
- the first and second wires wound on the core are drawn out onto the terminal electrode on the flange side. Accordingly, the phenomenon in which the first wire is pressed by the second wire when the first and second wires are drawn out can be prevented, and thus the positional shift of the first wire can be prevented.
- the guide portion may be extended outward from the terminal electrode on the side of the flange to form a guide portion, and a wire may be drawn out along the guide portion. Therefore, the wire can be easily pulled out and the positional shift of the wire can be prevented.
- the terminal electrode is coupled to at least two directions perpendicular to the flange, it is possible to prevent the terminal electrode from being separated by vibration and the like, and the welding part is formed on the side of the flange to reduce the height of the choke coil.
- 1 and 2 are a perspective view and an exploded perspective view of the choke coil according to the first embodiment of the present invention.
- 3 to 6 are top, bottom, one side, and other side views of the choke coil according to the first embodiment of the present invention.
- FIG. 7 to 9 are diagrams showing a modified example of the terminal electrode of the choke coil according to the first embodiment of the present invention.
- 10 and 11 are an exploded perspective view and a combined perspective view of the choke coil according to a second embodiment of the present invention.
- FIGS. 12 to 14 are perspective views according to the manufacturing process of the choke coil according to a third embodiment of the present invention.
- 15 and 16 are top and bottom perspective views of the choke coil according to a fourth embodiment of the present invention.
- 17 to 20 are top, bottom, one and side views of the choke coil according to the fourth embodiment of the present invention.
- 21 is a partially enlarged view of a choke coil according to a modification of the embodiments of the present invention.
- FIG. 1 is a perspective view showing a coupling of a choke coil according to a first embodiment of the present invention
- Figure 2 is an exploded perspective view.
- 3 to 6 are top, bottom, one side, and other side views of the choke coil according to the first embodiment of the present invention.
- 7 to 9 are diagrams illustrating a modified example of the terminal electrode of the choke coil according to the first embodiment of the present invention.
- the choke coil according to the first embodiment of the present invention includes a core 300, a wire 200 wound around the core 100, and flanges 300 at both ends of the core 100. ), A terminal electrode 400 fastened to both sides of the flange 300, a welding part 500 formed on the terminal electrode 400, and a cover part 600 provided on an upper portion of the core 100. have.
- the core 100 may be provided in a substantially hexahedral shape, and the wire 200 may be wound so as to contact and surround the core 100.
- the core 100 has a substantially rectangular cross-sectional shape in each of the longitudinal direction (X direction) and the width direction (Y direction), and may be provided larger than the Y direction in the X direction.
- the direction in which the flange 300 is provided is called a longitudinal direction (X direction) and the direction orthogonal to this is called a width direction (Y direction). That is, the core 100 includes first and second surfaces (ie, front and rear surfaces) that face each other in the X direction, third and fourth surfaces (ie, two sides) that face each other in the Y direction, and a Z direction.
- the fifth and sixth surfaces (that is, the upper and lower surfaces) opposed to each other may be provided, respectively, and the distance between the first and second surfaces may be greater than the width of the third and fourth surfaces.
- the core 100 may be formed so that the corner portion is rounded or has a predetermined slope. That is, the corner portions between the third to sixth surfaces (that is, between the two side surfaces, the upper surface and the lower surface) may be formed to be rounded or have a predetermined slope. As the corners of the core 100 are formed to be round in this manner, when the wires 200 are wound, the wires 200 may be prevented from being broken by sharp edges.
- the core 100 may be provided in a cylindrical shape, or may be provided in a polyhedral shape.
- the core 100 may form a polygon having a pentagonal shape or more in a plane or a cross section when viewed in the X direction, and may be provided to have a predetermined length in the X direction.
- the flange 300 may be provided at both ends of the core 100, that is, the first and second surfaces in the X direction.
- the core 100 may be made of ferrite material. Ferrite materials include Ni Ferrite, Zinc Ferrite, Copper Ferrite, Manganese Ferrite, Co Ferrite, Barium Ferrite, and Nickel-Zinc. One or more or one or more oxide magnetic materials thereof selected from the group consisting of copper magnetic materials (Ni-Zn-Cu Ferrite) may be used.
- the core 100 may be manufactured by mixing the ferrite material with a polymer, for example, and then molding the ferrite material into a predetermined shape such as a hexahedron.
- the wire 200 may be provided to surround the core 100. That is, the wire 200 may be provided to surround the core 100 in the X direction from one side to the other side, for example, from the first surface to the second surface direction. In addition, the wire 200 may be drawn so as to contact the terminal electrode 400 fastened to the flange 300 after the core 100 is wrapped.
- the wire 200 may be wound on at least one layer on the core 100.
- the wire 200 may include a first wire that is in contact with the core 100 and is wound, and a second wire that is in contact with the first wire and is wound thereon.
- the first wire may extend to the terminal electrode 400 fastened to the two flanges 300 opposite to each other, and the second wire may have two flanges opposite to each other without the first wire extending. It may extend to the terminal electrode 400 fastened to the (300).
- the wire 200 may be made of a conductive material, and an insulating material may be coated to surround the wire 200.
- the wire 200 may be formed such that a metal wire such as copper is formed to a predetermined thickness, and an insulating material such as resin covers the same.
- the insulating coating may be used alone, in combination of at least two or more of polyurethane, polyester, polyesterimide, polyamideimide, polyimide and the like.
- the insulation coating may use a mixture of polyester and polyamide or laminate them.
- the end of the wire 200 in contact with the terminal electrode 400 may be completely exposed to the metal wire to remove the insulating coating.
- the insulating coating can be irradiated with at least two lasers to completely remove it. For example, after irradiating the primary laser to the end of the wire 200, the portion irradiated with the primary laser may be rotated to irradiate the secondary laser to completely remove the insulation coating. Since the insulation coating at the end of the wire 200 is completely removed, there is no insulation coating between the terminal electrode 400 and the wire 200.
- the end of the wire 200 may be removed only a portion of the insulating coating in contact with the terminal electrode 400. That is, the insulating coating of the region contacting the terminal electrode 400 may be removed, and the insulating coating of the remaining region including the region opposite to the region contacting the terminal electrode 400 may remain.
- the flanges 300 are provided at both ends of the core 100, respectively. That is, the flanges 300 are respectively provided at both ends of the core 100 in the X direction.
- the flange 300 may be provided in a plate shape having a predetermined thickness having two surfaces facing each other. That is, the flange 300 may have a first surface in contact with the core 100 and a second surface opposite to the first surface, and have a predetermined thickness in the Y direction. At this time, the two surfaces facing the Y direction of the flange 300 in the side, the two surfaces facing in the Z direction will be referred to as the lower surface and the upper surface.
- the flange 300 is provided in a plate shape having a predetermined thickness, and includes first and second surfaces facing each other, two sides perpendicular to the first and second surfaces in the X direction and opposite to each other in the Y direction, and And a lower surface and an upper surface that are orthogonal to the first and second surfaces in the Z direction and oppose each other.
- the thickness of the flange 300 that is, the thickness in the X direction may be equal to or greater than the width of one surface of the terminal electrode 400 from which the wire 200 is drawn out and seated. That is, the thickness of the flange 300 may be adjusted according to the width of the terminal electrode 400 provided in contact with the side surface of the flange 300.
- the flange 300 may be provided larger than the core 100 in the Y direction and Z direction. That is, the flange 300 may have a larger width in the Y direction than the core 100 and a height in the Z direction than the core 100. In addition, the flange 300 may have a width of one region narrower than another region in the Y direction. That is, the flange 300 may have a narrower area than the upper area and the lower area in the region where the terminal electrode 400 is fastened, for example, in the Z direction. In this case, the flange 300 may have a height of a narrow middle region greater than a height of the upper and lower regions.
- the ratio of heights may be 1: 2: 1. That is, the flange 300 may have a shape in which two side surfaces facing in the Y direction are concave in the middle area from the bottom to the top, for example, a "laid H shape".
- the height ratio may be variously changed. For example, the height ratio may be variously changed according to the height of the terminal electrode 400 fastened to the flange 300.
- the flange 300 may have a predetermined inclination in an area where at least the wire 200 is contacted while being drawn out.
- the flange 300 may have a predetermined slope of an intermediate region adjacent to the core 100.
- the flange 300 may have a recess 310 as shown in FIGS. 1, 2, and 5 in a region where the wire 200 of the intermediate region adjacent to the core 100 is drawn out and in contact with the core 100.
- the concave portion 310 may be formed in a predetermined region of the surface adjacent to the core 100 of the middle region of the flange 300 and a surface perpendicular to the core 100. The concave portion 310 thus formed may serve to guide the withdrawal of the wire 200.
- the wire 200 may be guided by the recess 310 to be drawn out onto the terminal electrode 400.
- an area in which the wire 200 of the flange 300 is drawn out is rounded or formed to be concave, thereby preventing disconnection of the wire 200 and peeling of the coating. That is, when the edge is formed between the two surfaces of the flange 300 that is in contact with the wire 200 is drawn, when the wire 200 is drawn out, the wire 200 is stamped at the corners, so that the coating of the wire 200 is peeled off. Although the wire 200 may be disconnected, the wire 200 may be disconnected, thereby preventing the wire 200 from being drawn out.
- the terminal electrode 400 is inserted into and fastened to the flange 300, and the welding part 500 is formed by fixing the wire 200 in one region. That is, the welding part 500 is formed by contact fixing and fixing the wire 200 to one surface of the terminal electrode 400 provided in contact with two side surfaces of the flange 300.
- the terminal electrode 400 may be provided in a form to be in contact with a plurality of surfaces of the flange 300 to be fastened. That is, the terminal electrode 400 may be provided in contact with at least two surfaces of the flange 300.
- the terminal electrode 400 may include a first terminal 410 contacting the second surface of the flange 300 and a lower contact surface of the flange 300, as shown in FIGS. 1 to 6.
- the second terminal 420 and the third terminal 430 in contact with the side surface of the flange 300 may be included.
- the first terminal 410 may have a substantially rectangular shape and may be provided at a corner between the second side and the side of the first side flange 300.
- the first terminal 410 includes a portion extending from the second side orthogonal to the first side toward the lower surface of the flange 300 at a predetermined width. In this case, the extending portion may extend to a corner region between the second surface and the lower surface of the flange 300.
- the first terminal 410 may be formed in a "-" shape.
- the second terminal 420 may be formed along the lower surface of the flange 300 at a right angle from a portion extending downward of the first terminal 410.
- the width of the extended portion of the first terminal 410 and the second terminal 420 that is, the width in the Y direction may be smaller than the width of the first terminal 410.
- the third terminal 430 may be provided along the side surface of the flange 300 from one side corresponding to the edge between the second surface and the side surface of the flange 300 of the first terminal 410. In this case, the third terminal 430 may be provided to contact the concave region of the side surface of the flange 300.
- the first surface of the flange 300 of the terminal electrode 400 may be contacted and fastened to the lower surface and the side surface.
- the recess 435 may be formed to correspond to the recess 310 of the flange 300 at the center of the region facing the core 100, that is, at a central portion of the third terminal 430. Can be.
- the recess 435 may be provided to guide the lead out of the wire 200.
- two terminal electrodes 400 may be provided in one flange 300 and a total of four terminal electrodes 400 may be provided.
- a predetermined inclination is formed between the second surface, the side surface, and the lower surface of the flange 300 such that the second terminal 420 and the third terminal 430 of the terminal electrode 400 are inclined along the inclined surface. Can move to the bottom and side of the.
- the first terminal 410 and the second and third electrodes 420 and 430 of the terminal electrode 400 may form a right angle.
- the first terminal 410 of the terminal electrode 400 and the second and third electrodes 420 in order to further increase the coupling force by the pressing force of any one of the second terminal 420 and the third terminal 430.
- 430 may have an acute angle of 90 ° or less, for example, an angle of about 88 °.
- the welding part 500 is formed on the third terminal 430 of the terminal electrode 400 fastened to the side surface of the flange 300.
- the welding part 500 may be formed by irradiating a laser in a state in which the wire 200 is seated on the terminal electrode 400. That is, the welding part 500 may be formed by melting the wire 200 on the terminal electrode 400.
- the welding part 500 may be formed in a sphere shape.
- the cover part 600 may be provided on an upper portion of the core 100 to which the wire 200 is wound and the terminal electrode 400 is fastened.
- the cover part 600 may be provided in a substantially rectangular plate shape having a predetermined thickness. In this case, the lower surface of the cover 600 may contact the upper surface of the flange 300.
- the terminal electrode 400 may be formed in various shapes as illustrated in FIGS. 7 and 8.
- the first and second extensions 431 for fixing the end of the wire 200 to an area where the wire 200 of the terminal electrode 400 is seated, that is, the third terminal 430. , 432 may be formed.
- the first extension part 431 temporarily fixes the end of the wire 200
- the second extension part 432 fixes the end of the wire 200 and forms the weld part 500 together with the wire 200. That is, a part of the wire 200 and the second extension part 432 may be melted to form the weld part 500.
- the first extension part 431 may be formed on a third side opposite to the first side of the third terminal 430 in contact with the first terminal 410 of the terminal electrode 400.
- the first extension part 431 may be formed to extend from a third side of the third terminal 430 to a predetermined height and then extend in one direction again. That is, the first extension part 411 may include a height part formed at a predetermined height from the third terminal 430 and a horizontal part extending in one direction from the end of the height part. Accordingly, the first extension part 431 may be formed in a "-" shape. In this case, since the first extension part 431 is formed, a recess may not be formed in the terminal electrode 400.
- a concave portion 435 may be formed in the terminal electrode 400 and a first extension portion 431 may be formed.
- the first extension portion 431 may have a height portion adjacent to the concave portion. .
- the wire 200 may be guided and drawn out by the height part and the horizontal part of the first extension part 431. That is, since the wire 200 may be guided between the height portion and the horizontal portion of the first extension portion 431 having a "b" shape, it is possible to prevent the wire 200 from being separated.
- the height of the first extension part 431 may be bent in the direction in which the wire 200 is drawn out, that is, in a direction opposite to the core 100. Therefore, the horizontal part of the first extension part 431 is in contact with the third terminal 430 in a direction orthogonal to the drawing direction of the wire 200 so that the horizontal part temporarily fixes the wire 200.
- the second extension part 432 may be provided to be spaced apart from the first extension part 431.
- the second extension part 432 may be formed on a third side perpendicular to the second side of the third terminal 430 on which the first extension part 432 is formed.
- the second extension part 432 may include a height part provided at a predetermined height upward in a predetermined area of the third side of the third terminal 430, and a horizontal part formed to a predetermined size from an end of the height part.
- the horizontal portion may be formed wider than the width of the height portion. That is, the horizontal part of the second extension part 432 may be formed larger than the size of the first extension part 431 in consideration of the size of the welding part 500, for example, of the second extension part 432.
- the horizontal portion may be formed to widen in the first side direction from the height portion.
- the second extension part 432 may be bent in a direction orthogonal to the bending direction of the first extension part 431. That is, the height of the first extension 431 is bent from the second side of the third terminal 430 in the first side direction, and the second extension 432 is from the third side of the third terminal 430. It is bent in the fourth side direction opposite to this. Therefore, the horizontal part of the first extension part 431 and the horizontal part of the second extension part 432 fix the wire 200 in the same direction. As such, the wire 200 may be contacted and fixed on the upper surface 410 of the terminal electrode 400 by the first and second extensions 431 and 432.
- an opening 433 may be formed in the third terminal 430 of the terminal electrode 400.
- the opening 433 is formed to have a predetermined width and length, and the wire 200 may be positioned above the opening 433. That is, since the opening 433 is formed, the side surface of the flange 300 may be exposed to the lower side of the wire 200.
- the opening 433 may be formed to have a width wider than the width of the wire 200, and may be formed to have a length shorter than the length of the wire 200 seated on the third terminal 430. Accordingly, the wire 200 floats on the opening 433, and the most end of the wire 200 may contact the third terminal 430 of the terminal electrode 400.
- the wire 200 may contact with a predetermined width from the most end of the wire 200, and a part of the wire 200 may float on the opening 433.
- a portion of the wire 200 may be contacted on the flange 300 through the opening 433.
- the wire 200 and the second extension part 432 may be disposed on the opening 433, and the weld part 500 may be formed by melting the wire 200 and the second extension part 432 by laser irradiation. That is, the welding part 500 may be positioned above the opening 433.
- the opening 433 is formed in the third terminal 430 of the terminal electrode 400, the energy of the laser is applied to the terminal electrode 400 through the wire 200 during the laser irradiation to form the welding part 500.
- Conduction to the three terminals 430 can be suppressed. Therefore, it is possible to prevent deformation of the third terminal 430 of the terminal electrode 400 due to heat generated during laser irradiation, and to form the weld part 500 with optimal energy. In addition, it is possible to reduce the thermal energy conducted to the wound wire 200 to prevent a short circuit.
- an air layer formed by the opening 433 may be formed between the welding part 500 and the flange 300, so that a rapid cooling effect may be expected after the formation of the welding part 500, and the shape of the stable welding part 500 may be maintained.
- a portion of the welding part 500 formed while the wire 200 and the second extension part 432 of the terminal electrode 400 is welded is positioned in the opening 433 of the terminal electrode 400, thereby generating after welding.
- the height of the weld 500 may be lowered. Therefore, the height space area in the Z direction of the weld part 500 can be utilized to the maximum, thereby miniaturizing the product and designing a low profile.
- the opening 433 may be formed in the second extension part 432.
- the opening 433 is formed in the second extension part 432 to make the most of the space in the height direction, that is, the Z direction, of the weld part 500, thereby miniaturizing the product and designing a low profile.
- the second extension part 432 may have a horizontal portion formed at an end of a “U” shape, and a height portion and a horizontal portion may be formed at an approximately “F” shape. That is, the horizontal portion may be formed in a substantially “U” shape such that a groove is formed in an area where the wire 200 passes in a direction opposite to the core 100, and protrusions are formed on both sides. In this case, the protrusions at both sides of the groove may extend outward from the terminal electrode 400. That is, assuming that the portion protruding in the "U" shape extends the first terminal 410 of the terminal electrode 400 in the vertical direction, to an area beyond the first terminal 410 of the terminal electrode 400. It may be extended.
- the second extension part 432 is bent in the fourth side direction from the third side of the third terminal 430. Accordingly, the second extension portion 432 has a wire 200 passing through the groove portion in the “U” shaped portion, and protrusions on both sides thereof extend beyond the first terminal 410. As such, the wire 200 may be contacted and fixed on the terminal electrode 400 by the second extension part 432. In addition, since the protruding region of the second extension portion 432 protrudes outside the first terminal of the terminal electrode 400, the protruding portion of the terminal electrode 400 and the wire 200 may be joined by laser welding. The wire 200 on the upper side of the terminal electrode 400 may not be peeled off to prevent excessive welding.
- flanges 300 are provided at both ends of the core 100 to which the wire 200 is wound, and the terminal electrode 400 is provided on at least a side of the flange 300. ) Is fastened.
- an inclined surface is formed at an edge portion of the flange 300 to which the terminal electrode 400 is fastened to facilitate fastening of the terminal electrode 400, and a third terminal of the terminal electrode 400. Disconnection of the wire 200 drawn out to 430 may be prevented.
- the terminal electrode 400 is provided on the side of the flange 300 and the wire 200 is drawn out to the side of the flange 300, it is possible to prevent the first wire from being pressed by the second wire, and accordingly 1 The positional shift of the wire can be prevented.
- an opening 433 is formed in the third terminal 430 on which the wire 200 of the terminal electrode 400 is seated, so that energy generated by the laser during the laser irradiation to form the weld part 500 may cause the wire 200 to flow. It is possible to suppress the conduction to the third terminal 430 of the terminal electrode 400 through. Therefore, it is possible to prevent deformation of the terminal electrode 400 due to heat generated during laser irradiation, to form the welding part 500 with optimal energy, and to short-circuit by reducing the thermal energy conducted to the wound wire 200. Can be prevented.
- the core 100 and the cover part 600 to which the flange 300 is coupled at both ends are manufactured.
- the core 100 has a substantially rectangular cross-sectional shape in each of the longitudinal direction (X direction) and the width direction (Y direction), and may be provided in a substantially hexahedral shape larger than the Y direction in the X direction.
- the core 100 may be formed so that the corner portion is rounded or has a predetermined slope.
- the flange 300 is provided at both ends of the core 100 in the X direction, and may be manufactured integrally with the core 100 or may be separately manufactured and combined. At this time, the flange 300 may be provided to have a predetermined curvature of the side in the height direction, that is, Z direction.
- the flange 300 may be provided such that the center portion is smaller in width than the upper and lower portions in the height direction.
- the flange 300 may have a concave portion formed in a predetermined region of the central portion, and the corner between the first surface and the side surface facing the core 100 may be formed round.
- the cover 600 may be provided in a substantially rectangular plate shape having a predetermined thickness.
- the terminal electrode 400 is inserted into contact with the side and bottom surfaces from the second surface of the flange 300 to be coupled to the flange 300.
- the terminal electrode 400 may include a first terminal 410 contacting the second surface of the flange 300 and a second terminal extending from the first terminal 410 and contacting the lower surface of the flange 300. 420 and a third terminal 430 extending from the first terminal 410 to be in contact with the side surface of the flange 300.
- the corner portion between the second surface, the lower surface and the side surface of the flange 300 may be rounded, and may move to the side surface and the lower surface of the flange 300 along an area where the terminal electrode 400 is rounded.
- the wire 200 is wound around the core 100. That is, the wire 200 may wrap the core 100 from one side to the other side in the X direction.
- the wire 200 may include a first wire wound in contact with the core 100 and a second wire wound in contact with the first wire.
- the first wire may extend to the third terminal 430 of the terminal electrode 400 fastened to the sides of the two flanges 300 opposite to each other, and the second wire may extend from both ends of the first wire. It may extend to the third terminal 430 of the terminal electrode 400 fastened to two flanges 300 which are not opposite to each other.
- the wire 200 may be made of a conductive material, and an insulating material may be coated to surround the wire 200.
- the wire 200 may be formed such that a metal wire such as copper is formed to a predetermined thickness, and an insulating material such as resin covers the same.
- the coating of the distal end of the wire 200 is peeled off. The distal end of the wire 200 is stripped so that all the covering surrounding the metal wire can be removed.
- a laser is provided on the upper side of the wire 200 to irradiate the upper side of the wire 200, and then rotate the wire 200 so that the area not irradiated with the laser is upward, and irradiate the laser again.
- the insulating material is not removed in the area where the wire 200 contacts the upper portion of the terminal electrode 400, and the insulating material of the end area deviating outside the terminal electrode 400 is removed. That is, at least one portion of the coating may be removed by irradiating at least one laser to an end portion of the wire 400 positioned outside the terminal electrode 400 before the welding part 500 is formed.
- the upper end of the wire 400 positioned outside the terminal electrode 400 may be irradiated with a laser from the upper side to remove the upper side of the coating, and the lower side of the coating may be left, and the upper side and the lower side may irradiate the laser. To completely remove the coating at the end of the wire 400.
- the lower side of the wire 400 may be removed by irradiating a laser from the lower side, and the upper side may be left.
- at least part of the insulating coating may be removed at the end portion of the wire 200 from the direction in which the wire 200 is drawn out, according to the laser irradiation method.
- the wire 200 positioned on the terminal electrode 400 does not remove the insulating coating, but partially removes the insulating coating of the end of the wire 200 positioned outside the terminal electrode 400, thereby forming the weld part 500.
- Between the 200 and the terminal electrode 400 is an insulating layer by the insulating coating of the wire 400.
- the insulating layer remains in at least one other area such as at least one area of the welded part 500. That is, the wire 200 and the terminal electrode 400 are present under the weld 500, and the insulating layer remains between the weld 500 and the wire 200 and between the wire 200 and the terminal electrode 400. can do.
- an insulating layer may remain on the surface of the weld part 500 or the like. As a result, an insulating layer may exist in a plurality of regions around the weld 500. This is because the welding portion 500 is removed while the insulation coating of the wire 200 between the weld portion 500 and the terminal electrode 400 is not removed and the insulation coating of the wire 200 in the region outside the terminal electrode 400 is removed. Because it is formed.
- the end of the wire 200 is drawn out to the third terminal 430 of the terminal electrode 400.
- a recess is formed between the first surface and the side surface of the flange 300, or an inclined surface is formed so that the wire 200 may be drawn out along the recess or the inclined surface.
- the third terminal 430 of the terminal electrode 400 may be formed of a height portion and a horizontal portion, so that the first extension portion 431 having a substantially “a” shape may be formed, and thus the wire 200 may have a height portion and a horizontal portion. It is guided through and positioned at the third terminal 430 of the terminal electrode 400.
- the opening 433 may be formed in the third terminal 430 of the terminal electrode 400 so that the wire 200 may be seated on the opening 433. Therefore, a part of the wire 200 is positioned on the opening 433.
- the wire 200 is drawn out to pass over the opening 433.
- the first extension part 431 is bent to temporarily fix the wire 200.
- the second extension part 432 is bent to fix the wire 200.
- the laser is irradiated toward the second extension part 432 to form the weld part 500. That is, the second extension part 432 and the wire 200 are melted by laser irradiation, and a spherical weld part 500 is formed on the terminal electrode 400.
- the welding part 500 may be formed above the opening. Since the opening is formed in the terminal electrode 400, it is possible to suppress the energy of the laser irradiated to form the welding part 500 from being conducted to the terminal electrode 400 through the wire 200. Therefore, it is possible to prevent deformation of the terminal electrode 400 due to heat generated during laser irradiation and to form the weld part 500 with optimal energy.
- an air layer formed by the opening between the weld 500 and the flange 300 may be expected to provide a rapid cooling effect after forming the weld 500, and maintain a stable shape of the weld 500.
- the cover part 600 is covered to be in contact with the upper portion of the flange 300.
- 10 and 11 are an exploded perspective view and a combined perspective view of the choke coil according to a second embodiment of the present invention.
- a groove 310 is formed at a side surface of the flange 300, and the terminal electrode 400 fastened to the flange 300 is a groove.
- the guide groove 440 is formed. That is, compared to the first embodiment of the present invention, the second embodiment of the present invention has a groove 310 formed in the side of the flange 300 and a guide groove 440 formed in the terminal electrode 400 corresponding to the groove 310. ) May be further included.
- the terminal electrode 400 may include a first terminal 410 in contact with the front surface of the flange 300, a second terminal 420 in contact with the bottom surface of the flange 300, and a side in contact with the side surface of the flange 300.
- a guide groove 440 is formed in the third terminal 430, corresponding to the groove 310 of the flange 300.
- the guide groove 440 is more than the surface of the third terminal 430 It may be formed concave. Therefore, the wire 200 may be accommodated in the guide groove 440 and drawn out.
- the guide groove 440 may have a depth and width of, for example, 1/4 or more of the diameter of the wire 200 so that at least a portion of the wire 200 may be accommodated, preferably, the diameter of the wire 200 It may have a depth and width of 1/2 or more.
- the groove 310 is formed on the side of the flange 300 and the guide groove 440 is formed in the terminal electrode 400 to be fastened to the groove 310, so that the fastening of the terminal electrode 400 to the flange 300 can be further performed. You can make announcements.
- a guide groove 440 is further formed to further increase the contact area between the terminal electrode 400 and the flange 300 so that the flange ( The fastening of the 300 and the terminal electrode 400 can be made stronger.
- the guide groove 440 of the terminal electrode 400 it is possible to more easily withdraw the wire 200.
- FIG. 12 to 14 are perspective views according to the manufacturing process of the choke coil according to the third embodiment of the present invention. That is, FIG. 12 is a perspective view illustrating a state in which the wire 200 drawn out to the core 100 is drawn out to the terminal electrode 400 provided on the side of the flange 300, and FIG. 13 is a view of the terminal electrode 400 and the wire ( 200 is a perspective view in which the welding part 500 is formed by bonding 200, and FIG. 14 is a perspective view in which the cover part 600 is formed.
- This second embodiment of the present invention will be described below with the focus on the differences except for the content overlapping with the description of the first embodiment.
- the flange 300 is formed such that its upper width is wider than its lower width in the Z direction, that is, in the vertical direction. That is, the flange 300 may be formed to have a predetermined thickness on the upper side in the vertical direction wider in the Y direction, that is, the width direction than the predetermined thickness on the lower side. For example, the thickness of the first region of about 1/3 in the vertical direction may be wider than the thickness of the second region of about 2/3 of the lower side.
- the flange 300 may be provided in the form of "T".
- the terminal electrode 400 may be provided in the second region having a narrow width of the flange 300.
- a guide part 700 may be formed on the upper side of the third terminal 430 in contact with the side surface of the flange 300 of the terminal electrode 400 to guide the lead out of the wire 200.
- the guide part 700 may be provided at a boundary between a first area of the third terminal 430 of the terminal electrode 400, for example, the first area and the second area of the flange 300.
- the guide part 700 may be provided in a form in which the lower direction is opened and the upper direction is closed. That is, the direction in which the wire 200 is drawn out may be provided in a substantially semicircular shape in which the direction in which the wire 200 is drawn out is closed.
- the guide part 700 is provided in such a manner that the lower direction is opened, the wire 200 drawn out from the lower direction to the upper direction can be guided.
- the guide part 700 may be equal to, longer or shorter than the length of the third terminal 430 of the terminal electrode 400 in the X direction.
- the guide part 7000 is preferably equal to the length of the third terminal 430 of the terminal electrode 400 in order to form the weld part 500.
- the weld part 500 may be formed by melting the guide part 700 and the wire 200.
- the third embodiment may further include a part of the second embodiment. That is, the groove 310 may be formed in the flange 300, and the guide groove 440 may be formed in the third terminal 430 so that the guide groove 440 may be fastened to the groove 310.
- the guide portion 700 is provided on the upper side of the guide groove 440, the withdrawal of the wire 200 can be guided and accommodated through the guide groove 440 and the guide portion 700. That is, the guide part 700 and the guide groove 440 may function to accommodate the wire 200 in addition to the function of guiding the withdrawal of the wire 200.
- FIGS. 17 to 20 are top, bottom and one side views of the choke coil according to the fourth embodiment of the present invention. And other side views.
- the choke coil according to the third embodiment of the present invention includes a core 300, a wire 200 wound around the core 100, and flanges 300 at both ends of the core 100. ), A terminal electrode 400 fastened to both sides of the flange 300, and a guide part 700 provided in one region of the terminal electrode 400.
- a welding part formed on the terminal electrode 400 and a cover part provided to cover the upper side of the core 100 and the flange 300 may be further selectively included. That is, the choke coil of the present invention may not include a welded portion and a lid portion, or may include at least one.
- the third embodiment of the present invention will be described below with the exception of the contents that overlap with the description of the first and second embodiments.
- the flange 300 may be provided in a substantially "T" shape. For example, it may have a first width from the bottom surface to the first height in the Z direction and a second width greater than the first width from the first height to the top surface. That is, the flange 300 may include a first area having a first width and a second area provided on the first area and having a second width. In this case, at least a portion of the terminal electrode 400 may be fixed in the Y direction in the narrow first region. In addition, the flange 300 may have a step in at least one region in a second surface direction, that is, in the X direction, facing the first surface from the first surface in contact with the core 100.
- the flange 300 may have at least one step having a different height under the second area. That is, the flange 300 may be formed in a step shape having a flat upper surface of the second region and a lower surface of the second region having at least one step from the first surface to the second surface. At this time, the height of the step may be lowered from the first surface to the second surface direction. For example, two steps may be formed and three may be formed. As described above, at least a portion thereof is formed in a stepped shape to accommodate the terminal electrode 400 and the guide part 700 according to the third embodiment of the present invention.
- the third terminal 430 of the terminal electrode 400 may contact the first step adjacent to the core, and the guide part 700 may contact the second step below the first step.
- the third terminal 430 and the guide part 700 of the terminal electrode 400 are in contact with the first and second steps, and the terminal electrode 400 is in the third step which is lower than the second step.
- the first terminal of can be contacted.
- the third step may be removed by a predetermined thickness in the shape of the first terminal 410 of the terminal electrode 400 so that the entire first terminal 410 may be accommodated in the third step.
- the first region of the flange 300 may include the first and second steps, may not include the third step, and may include all of the first to third steps.
- the terminal electrode 400 includes a first terminal 410 in contact with the second surface of the flange 300 of the flange 300, a second terminal 420 in contact with the lower surface of the flange 300, and a flange ( It may include a third terminal 430 in contact with the side of the flange 300 from the lower surface of the 300.
- the third terminal 430 may be formed to extend from the second terminal 420. That is, in the first and second embodiments of the present invention, although the third terminal 430 of the terminal electrode 400 in which the flange 300 is in contact with the side surface is formed to extend from the first terminal 410, The third embodiment may extend from the second terminal 420 where the third terminal 430 of the terminal electrode 400 is in contact with the bottom surface of the flange 300.
- the first terminal 410 may have a substantially “a” shape to contact the second surface of the flange 300.
- a third step may be formed on the second surface of the flange 300, and the first terminal 410 may be accommodated in the third step.
- the width of at least one region of the first terminal 410 may be different.
- the width of the vertical portion connected to the second terminal 420 in the vertical direction is the width of the horizontal portion formed in the horizontal direction from the upper side of the vertical portion. It can be wider.
- the vertical portion and the horizontal portion may form a right angle at the outside and an obtuse angle at the inside.
- the second terminal 420 may be bent from the lower end of the first terminal 410 to be in contact with the bottom surface of the flange 300. That is, the second terminal 420 may extend in the horizontal direction from the vertical portion of the first terminal 410 to contact the bottom surface of the flange 300. In this case, the width of the second terminal 420 may be equal to the width of the vertical portion of the first terminal 410.
- the third terminal 430 may extend from the side of the second terminal 420. In this case, a part of the third terminal 430 may be in contact with the bottom surface of the flange 300, and part of the third terminal 430 may be in contact with the side surface of the flange 300.
- the third terminal 430 extends from the side surface of the second terminal 420 to the edge of the flange 300 in the Y direction, and extends upwardly therefrom to the side surface of the flange 300.
- the third terminal 430 may be provided with a wider width of the area in contact with the side surface of the flange 300 than a width of the area in contact with the bottom surface of the flange 300.
- the third terminal 430 may be provided to contact the lower side of the first step of the flange 300.
- the guide part 700 may extend outward from the third terminal 430 of the terminal electrode 400 in the X direction. That is, the guide part 700 may extend in a direction opposite to the core 100 to be exposed to the outside of the flange 300. In this case, the guide part 700 may be formed to extend to be exposed to the outside of the flange 300 from the third terminal 430 of the terminal electrode 400 in contact with the second step of the flange 300. That is, the guide part 700 may be provided higher than the third terminal 430 of the terminal electrode 400.
- the guide portion 700 may be provided in a form in which the lower direction is opened and the upper direction is closed. That is, the direction in which the wire 200 is drawn out may be provided in a substantially semicircular shape in which the direction in which the wire 200 is drawn out is closed.
- the guide part 700 is provided in such a manner that the lower direction is opened, the wire 200 drawn out from the lower direction to the upper direction can be guided.
- at least a portion of the guide part 700 may contact the flange 300 and at least a portion may protrude out of the flange 300.
- one half of the length of the guide part 700 may contact the flange 300 and the other half may protrude out of the flange 300.
- a welded part (not shown) may be formed on the outer side of the guide part 700 formed as described above. That is, a laser beam may be irradiated to the end of the guide part 700 exposed to the outside of the flange 300 to form a weld part at the end of the guide part 700.
- the fourth embodiment may further include a part of the second embodiment. That is, the groove 310 may be formed in the flange 300, and the guide groove 440 may be formed in the third terminal 430 so that the guide groove 440 may be fastened to the groove 310.
- the guide portion 700 is provided on the upper side of the guide groove 440, the withdrawal of the wire 200 can be guided and accommodated through the guide groove 440 and the guide portion 700. That is, the guide part 700 and the guide groove 440 may function to accommodate the wire 200 in addition to the function of guiding the withdrawal of the wire 200.
- a predetermined gap is provided between the lower surface of the first region of the flange 300 and the first terminal 410 of the terminal electrode 400, and the gap is provided as the auxiliary guide part A.
- FIG. In operation, the withdrawal of the wire 200 may be guided through the auxiliary guide part A. FIG. That is, the withdrawal of the wire 200 may be guided between the flange 300 and the first terminal 410 to be accommodated in the guide part 700.
- at least a portion of the first region of the flange 300 may protrude in the Y direction and the protruding portion may function as the auxiliary guide portion A.
- a separate guide portion 700 is not formed in the third terminal 430, and a portion in which at least a portion of the first region of the flange 300 protrudes in the Y direction may function as the guide portion.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
Claims (13)
- 코어;상기 코어의 일 방향의 양단부에 마련된 플랜지;상기 플랜지에 결합되는 단자 전극; 및상기 코어에 권선되며, 말단부가 상기 단자 전극 상으로 인출되는 와이어를 포함하고,상기 와이어는 상기 플랜지 측면의 상기 단자 전극 상으로 인출되는 초크 코일.
- 청구항 1에 있어서, 상기 단자 전극은 상기 플랜지의 상기 코어와 접촉되는 제 1 면과 대향되는 제 2 면에 접촉되는 제 1 단자와, 상기 플랜지의 수직 방향의 일면에 접촉되는 제 2 단자와, 상기 플랜지의 수평 방향으로 측면에 접촉되는 제 3 단자를 포함하고,상기 와이어는 상기 제 3 단자에 접촉되어 인출되는 초크 코일.
- 청구항 2에 있어서, 상기 플랜지는 상기 측면에 형성된 홈을 더 포함하는 초크 코일.
- 청구항 3에 있어서, 상기 단자 전극은 상기 플랜지의 홈에 체결되도록 상기 제 3 단자에 형성된 가이드 홈을 더 포함하는 초크 코일.
- 청구항 2 또는 청구항 4에 있어서, 상기 제 3 단자 상에 마련되며 상기 와이어의 인출을 가이드하는 가이드부를 더 포함하는 초크 코일.
- 청구항 5에 있어서, 상기 가이드부는 상기 플랜지의 하측에 마련된 초크 코일.
- 청구항 6에 있어서, 상기 가이드부는 적어도 일부가 상기 플랜지의 외측으로 돌출된 초크 코일.
- 청구항 2 또는 청구항 4에 있어서, 상기 플랜지의 적어도 일부가 돌출 형성되어 상기 와이어의 인출을 가이드하는 가이드부를 더 포함하는 초크 코일.
- 청구항 5에 있어서, 상기 제 2 단자는 제 1 단자로부터 연장 형성되고, 상기 제 3 단자는 제 2 단자로부터 연장 형성된 초크 코일.
- 청구항 5에 있어서, 상기 제 3 단자에 형성된 개구부를 더 포함하는 초크 코일.
- 청구항 10에 있어서, 상기 개구부는 상기 와이어의 폭보다 넓은 폭으로 형성되며, 상기 와이어의 길이보다 짧게 형성되는 초크 코일.
- 청구항 1에 있어서, 상기 와이어의 말단부에 형성된 용접부를 더 포함하는 초크 코일.
- 청구항 12에 있어서, 상기 용접부와 상기 단자 전극 사이의 적어도 일 영역에 마련된 절연층을 더 포함하는 초크 코일.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/608,180 US20210104355A1 (en) | 2017-05-12 | 2018-05-10 | Choke coil |
EP18797670.9A EP3624150A4 (en) | 2017-05-12 | 2018-05-10 | THROTTLE COIL |
JP2019561266A JP2020519033A (ja) | 2017-05-12 | 2018-05-10 | チョークコイル |
CN201880030589.6A CN110622264A (zh) | 2017-05-12 | 2018-05-10 | 扼流圈 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20170059289 | 2017-05-12 | ||
KR10-2017-0059289 | 2017-05-12 | ||
KR1020170127911A KR101981468B1 (ko) | 2017-05-12 | 2017-09-29 | 초크 코일 |
KR10-2017-0127911 | 2017-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018208101A1 true WO2018208101A1 (ko) | 2018-11-15 |
Family
ID=64104773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2018/005376 WO2018208101A1 (ko) | 2017-05-12 | 2018-05-10 | 초크 코일 |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2018208101A1 (ko) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003022916A (ja) | 2001-05-02 | 2003-01-24 | Taiyo Yuden Co Ltd | コイル部品及びコイル部品の製造方法 |
JP2003158021A (ja) * | 2001-11-26 | 2003-05-30 | Minebea Co Ltd | 巻線型コモンモードチョークコイル |
JP2006121013A (ja) * | 2004-10-25 | 2006-05-11 | Tdk Corp | コイル部品の製造方法 |
JP2008010752A (ja) * | 2006-06-30 | 2008-01-17 | Tdk Corp | コイル部品 |
KR20150032501A (ko) * | 2013-09-18 | 2015-03-26 | 티디케이가부시기가이샤 | 코일 장치 |
JP2017005079A (ja) * | 2015-06-09 | 2017-01-05 | 太陽誘電株式会社 | コモンモードフィルタ |
-
2018
- 2018-05-10 WO PCT/KR2018/005376 patent/WO2018208101A1/ko active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003022916A (ja) | 2001-05-02 | 2003-01-24 | Taiyo Yuden Co Ltd | コイル部品及びコイル部品の製造方法 |
JP2003158021A (ja) * | 2001-11-26 | 2003-05-30 | Minebea Co Ltd | 巻線型コモンモードチョークコイル |
JP2006121013A (ja) * | 2004-10-25 | 2006-05-11 | Tdk Corp | コイル部品の製造方法 |
JP2008010752A (ja) * | 2006-06-30 | 2008-01-17 | Tdk Corp | コイル部品 |
KR20150032501A (ko) * | 2013-09-18 | 2015-03-26 | 티디케이가부시기가이샤 | 코일 장치 |
JP2017005079A (ja) * | 2015-06-09 | 2017-01-05 | 太陽誘電株式会社 | コモンモードフィルタ |
Non-Patent Citations (1)
Title |
---|
See also references of EP3624150A4 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108369853B (zh) | 扼流线圈及其制造方法 | |
US6522230B2 (en) | Chip-type common mode choke coil | |
EP0089778A2 (en) | Electrical connector for interconnecting printed circuit boards | |
US5200731A (en) | Double insulated transformer of the coaxial type and method of assembling the same | |
TWI721269B (zh) | 扼流圈 | |
JP2003077730A (ja) | コモンモードチョークコイル | |
WO2017213378A1 (ko) | 복합 전자 부품 | |
TW200946014A (en) | Shield case and circuit board assembly | |
JP2012038941A (ja) | トランス | |
US20220148792A1 (en) | Coil component | |
WO2017086626A1 (ko) | 초크 코일 및 그 제조 방법 | |
WO2018208101A1 (ko) | 초크 코일 | |
US6127911A (en) | Transformer | |
US20140197914A1 (en) | Transformer assemblies with moveable terminal blocks | |
WO2018208100A1 (ko) | 초크 코일 | |
JP3640279B2 (ja) | トランス | |
US7456718B1 (en) | Wire-arranging pin and winding frame and transformer having same | |
WO2023075239A1 (ko) | 트랜스포머 | |
WO2023132686A1 (ko) | 밴드타입 커넥터 | |
JPH0832195A (ja) | 複合プリント基板の接続構造 | |
WO2022270806A1 (ko) | 리셉터클 커넥터와 플러그 커넥터를 포함하는 커넥터 조립체 및 플러그 커넥터 | |
JP2005117059A (ja) | トランス | |
KR200160631Y1 (ko) | 플라이 백 트랜스 단자핀 고정구조물 | |
TWM652182U (zh) | 連接器總成 | |
JPS6171570A (ja) | ランプソケツト |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18797670 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2019561266 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2018797670 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2018797670 Country of ref document: EP Effective date: 20191212 |