WO2018208100A1 - 초크 코일 - Google Patents
초크 코일 Download PDFInfo
- Publication number
- WO2018208100A1 WO2018208100A1 PCT/KR2018/005375 KR2018005375W WO2018208100A1 WO 2018208100 A1 WO2018208100 A1 WO 2018208100A1 KR 2018005375 W KR2018005375 W KR 2018005375W WO 2018208100 A1 WO2018208100 A1 WO 2018208100A1
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- WIPO (PCT)
- Prior art keywords
- wire
- terminal
- terminal electrode
- flange
- choke coil
- Prior art date
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- 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
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- 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 a vehicle or 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.
- the wire drawn out above the terminal electrode is pressed and fixed by the extension part extended from the terminal electrode.
- the wire crushes as the extension presses the wire. That is, the circular wire is crushed by being pressed by the extension, and the original shape is deformed.
- the deformed shape of the wire is different according to the pressing pressure.
- the tensile force of the wire changes in accordance with the pressing pressure, the higher the pressure, the weaker the tensile force.
- the wire may be pressed lightly.
- the terminal electrode may not press the wire sufficiently so that the wire is not fixed and the wire wound on the core is released by tension. Can be. Therefore, the wire must be pressed above a predetermined pressure to fix the wire, but the wire may be weakened by the pressing pressure, such that the wire may be broken during operation.
- the present invention provides a choke coil capable of minimizing the problems caused by the shape deformation and position shift of the wire.
- the present invention provides a choke coil capable of minimizing the shape deformation of the wire and preventing misalignment by forming a wire receiving portion in which at least a portion of the wire is accommodated in a portion of the terminal electrode.
- Choke coil is a core; Flanges provided at both ends of the core in one direction; A terminal electrode coupled to the flange; A wire wound around the core and having a distal end drawn to the terminal electrode; And a wire receiving portion accommodating the distal end of the wire.
- the wire receiving portion is provided in at least a portion of the terminal electrode.
- the terminal electrode includes a terminal contacting one side of the flange in a horizontal direction or a vertical direction, and the wire is drawn out onto the terminal.
- the wire receiving portion is provided in at least one of the terminal and the extension portion.
- the wire receiving portion includes a groove having a depth of 0.2 to 1 times the wire diameter and a width of 0.2 to 2 times the wire diameter.
- the groove is provided on at least one of one side of the terminal and one side of the extension part facing each other.
- the wire receiving portion further includes a convex portion provided on the other surface of the terminal and the other surface of the extension portion facing the groove.
- the flange further includes a guide groove formed concave in correspondence with the convex portion of the terminal to accommodate the convex portion.
- the choke coil according to embodiments of the present invention includes a wire receiving portion formed on at least a portion of the terminal electrode, and the wire is drawn out so that at least a portion of the wire receiving portion is received. At least a portion of the wire, for example at least a portion of the wire diameter, is received in the wire receptacle to minimize the shape deformation of the wire when the wire is pressed into the extension. Therefore, the tensile force of the wire is improved, thereby improving the resistance to shock and vibration, thereby improving the reliability of the choke coil.
- the wire is drawn out so as to be accommodated in the wire accommodating portion so that the position of the wire can be fixed, thereby preventing the wire from being misaligned. Therefore, since the positional deviation of the wire does not occur, the welded portion joining the wire and the terminal electrode may be formed at the same position, so that a plurality of products may have the same quality.
- FIG. 1 is a perspective view of the coupling of the choke coil according to the first embodiment of the present invention.
- 2 to 4 are partially exploded perspective views, combined perspective views and one side view of the choke coil according to the first embodiment of the present invention.
- 5 and 6 are side views of the terminal electrode and the wire receiving portion of the choke coil according to the first embodiment of the present invention.
- FIG. 7 to 11 are views showing a modification of the terminal electrode and the wire receiving portion of the choke coil according to the first embodiment of the present invention.
- 12 and 13 are an exploded perspective view and a combined perspective view of the choke coil according to a second embodiment of the present invention.
- 14 and 15 are a perspective view and a side view of a part of the choke coil according to a third embodiment of the present invention.
- 16 and 17 are a perspective view and a partially enlarged view of a part of the choke coil according to the third embodiment of the present invention.
- FIG. 18 is a partial photograph of a choke coil in accordance with embodiments of the present invention.
- FIGS. 7 to 9 are modified examples of the terminal electrode of the choke coil according to the embodiments of the present invention. Figure is shown.
- 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 the flange 300, and a wire accommodating part 500 accommodating at least a portion of the wire 200 drawn out from the core 100.
- the wire accommodating part 500 accommodates the end of the wire 200 drawn onto the terminal electrode 400.
- the welding part 600 formed on the terminal electrode 400 may further include a cover part 700 provided on the core 100. That is, at least one of the welding part 600 and the cover part 700 may be selectively included. 2 and 3 illustrate the choke coil without the weld 600 and the cover 700, and FIG.
- FIG. 1 illustrates the choke coil with the weld 600 and the cover 700. That is, when the welding part 600 is formed on the terminal electrode 400 to which the wire 200 is fixed in FIGS. 2 and 3, and the cover part 700 is formed to contact the upper surface of the flange 300, the shape of FIG. The choke coil is produced.
- 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 nickel ferrite (Ni ferrite), zinc ferrite (Zn Ferrite), copper ferrite (Cu Ferrite), manganese ferrite (Mn Ferrite), cobalt ferrite (Co Ferrite), barium ferrite (Ba 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 opposite 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 and 2 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. That is, 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 600 is formed by fixing the wire 200 in one region. That is, the wire 200 is contact-fixed to one surface of the terminal electrode 400 provided in contact with two side surfaces of the flange 300 to form a welded part 600.
- 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 and 2.
- 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 °.
- First and second extensions 431 and 432 may be provided.
- 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 600 together with the wire 200. That is, a part of the wire 200 and the second extension part 432 may be melted to form a weld part 600.
- 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. At this time, the horizontal portion may be formed wider than the width of the height portion.
- the horizontal portion of the second extension portion 432 may be formed larger than the size of the first extension portion 431 in consideration of the size of the welding portion 600, for example, of the second extension portion 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.
- the first embodiment of the present invention has been described taking the case where both the first and second extension parts 431 and 432 are provided on the third terminal 430, but the first extension part 431 is provided. Instead, only the second extension part 432 may be provided.
- the wire accommodating part 500 is provided to accommodate at least a portion of the wire 200 drawn out from the core 100 onto the terminal electrode 400.
- the wire receiving part 500 may be provided on at least a portion of the terminal electrode 400.
- the wire receiving part 500 may be provided in a predetermined area of the second extension part 432 as shown in FIGS. 5 and 6.
- the wire accommodating part 500 may be formed on a surface in contact with the wire 200 of the second extension part 432. That is, the second extension part 432 may be bent in one direction, that is, the third terminal 430 of the terminal electrode 400 to be in contact with the wire 200, the wire receiving portion 500 is a wire ( It may be provided on one surface of the horizontal portion in contact with 200.
- the wire receiving part 500 may be provided with a predetermined length on one surface of the horizontal part in the drawing direction, that is, the X direction of the wire 200.
- the wire accommodating part 500 may be provided with the entire length of the horizontal part in the X direction, and may be provided with at least the length of the wire 200 drawn out.
- the wire receiving part 500 may be provided in a groove shape having a predetermined depth and width and having a predetermined length. That is, the wire receiving part 500 may be formed by forming a groove having a predetermined depth and width and a predetermined length in a predetermined region of the second extension part 432.
- the shape of the wire receiving portion 500 may have a variety of shapes that can accommodate the wire 200.
- the cross-sectional shape in the width direction may be formed in various shapes such as semicircular, elliptical, triangular, square, and pentagonal.
- the depth and width of the wire receiving portion 500 may be formed to 0.2 to 2 times the diameter of the wire 200.
- the depth of the wire receiving portion 500 may be formed to 0.2 times to 1 times the diameter of the wire 200
- the width may be formed to 0.5 times to 2 times the diameter of the wire 200.
- the wire 200 may be completely accommodated, thereby minimizing the shape deformation of the wire 200.
- the thickness of the second extension part 432 may increase.
- the depth of the wire receiving part 500 may be smaller than the thickness of the horizontal part of the second extension part 432. That is, the depth of the wire receiving part 500 may be smaller than the horizontal part thickness of the second extension part 432, and may be 0.2 to 1 times the diameter of the wire 200.
- the depth and width of the wire receiving portion 500 is less than 0.2 times the diameter of the wire 200, the wire 200 accommodated in the wire swimming portion 500 is reduced, so that the second extension portion 432 is wire Pressing much of the 200 may reduce the shape deformation prevention effect of the wire 200. That is, when the depth and width of the wire receiving part 500 are small, the area of the wire 200 accommodated in the wire receiving part 500 is small, and accordingly, the horizontal part and the third terminal of the second extension part 432 ( The area that is pressed between the 430 increases to increase the area of the wire 200 is crushed.
- the welding part 600 is formed on the third terminal 430 of the terminal electrode 400 fastened to the side surface of the flange 300.
- the welding part 600 may be formed by irradiating a laser while the wire 200 is seated on the terminal electrode 400 and the second extension part 432 is bent and pressed. That is, the welding part 600 may be formed by melting the wire 200 on the terminal electrode 400.
- the welding part 600 may be formed in a sphere shape.
- an insulation layer may be provided below the weld part 600. That is, an insulating layer may be provided between the welding part 600 and the third terminal 430.
- the cover part 700 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 700 may be provided in a substantially rectangular plate shape having a predetermined thickness. In this case, the lower surface of the cover part 700 may contact the upper surface of the flange 300.
- the terminal electrode 400 and the wire receiving part 500 are shown in FIGS. 7 to 10. It can be formed in various shapes as shown.
- 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 second extension part 432 may be provided with a wire receiving part 500 for receiving at least a portion 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.
- 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. That is, 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. Of course, a portion of the wire 200 may be contacted on the flange 300 through the opening 433. As such, the wire 200 and the second extension part 432 are positioned on the opening 433, and the welding part 600 may be formed by melting the wire 200 and the second extension part 432 by laser irradiation. That is, the welding part 600 may be positioned above the opening 433.
- the opening 433 is formed in the third terminal 430 of the terminal electrode 400, so that the energy generated by the laser is applied to the terminal electrode 400 through the wire 200 when the laser irradiation for forming the welding part 600 is performed. 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 600 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 weld part 600 and the flange 300, so that a rapid cooling effect may be expected after the weld part 600 is formed, and the shape of the stable weld part 600 may be maintained.
- a portion of the welding part 600 formed while the wire 200 and the second extension part 432 of the terminal electrode 400 is welded is positioned at the opening 433 of the terminal electrode 400, thereby being generated after welding.
- the height of the weld 600 may be lowered. Therefore, the height space area in the Z direction of the weld part 600 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.
- the wire receiving part 500 for accommodating at least a portion of the wire 200 may also be formed in the F-shaped second extension part 432. In this case, the protrusions at both sides of the groove may extend outward from the terminal electrode 400.
- 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.
- 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.
- the wire receiving part 500 may be formed on the third terminal 430. That is, as shown in FIG. 9, a groove receiving wire 500 having a predetermined depth and width and a predetermined length may be formed on the third terminal 430.
- the wire accommodating part 500 is formed in the third terminal 430 to accommodate and fix the wire simultaneously with the guide of the wire 200. That is, the wire 200 is drawn out to be in contact with the third terminal 430, and the lead 200 may be guided to be accommodated in the wire receiving part 500 formed at the third terminal 430. The wire can be received and fixed.
- the wire accommodating part 500 may be formed at the third terminal 430, and the wire accommodating part may be formed at the second extension part 432 facing the same. Meanwhile, when the wire receiving part 500 is formed in the third terminal 430, the depth of the wire receiving part 500 may be smaller than the thickness of the third terminal 430.
- the wire receiving part 500 may be formed to have a depth greater than or equal to the thickness of the second extension part 432, and for this purpose, a part of the second extension part 432 may be formed to protrude. That is, as shown in FIG. 10, the wire receiving part 500 is formed to be concave inward of the second extension part 432 and the wire receiving part 500 is formed according to the depth of the wire receiving part 500.
- One surface of the opposite second extension portion 432 may be convex.
- One surface of the second extension part 432 is concave and the other surface is convex, so that the wire receiving part 500 may be formed to a depth irrespective of the thickness of the second extension part 432. That is, the wire receiving part 500 may be formed to have a depth equal to or greater than the thickness of the second extension part 432.
- the wire accommodating part 500 may be formed on the third terminal 430 as well as the second extension part 432 of the terminal electrode 400. That is, as shown in FIG. 11, the wire receiving part 500 includes a first wire receiving part 510 formed in the second extension part 432 and a second wire receiving part 520 formed in the third terminal 430. ) May be included. In this case, the first and second wire receiving parts 510 and 520 may be formed in regions overlapping each other. That is, since the first and second wire receiving parts 510 and 520 are formed in the same area, a part of the diameter of the wire 200 is drawn out to be received in the second wire receiving part 520 and then the second extension part 432 is provided.
- the remaining portion of the diameter of the wire 200 may be accommodated in the first wire receiving portion 510 when the wire is bent.
- the first and second wire receptacles 510 and 520 may have the same depth and width.
- the first and second wire receivers 510 and 520 may have different depths and widths.
- the second wire receiver 520 formed in the third terminal 430 may be the first wire receiver. Depth and width may be greater than 510.
- the first wire receiving part 510 formed in the second extension part 432 may have a greater depth and width than the second wire receiving part 520.
- the choke coil according to the first embodiment of the present invention is provided with a wire receiving part 500 for accommodating at least a portion of the wire 200 in at least a portion of the terminal electrode 400 so that the wire 200 is pressed. And position misalignment can be prevented. That is, the second extension when the wire 200 drawn out onto the third terminal 430 of the terminal electrode 400 is pressed by at least a portion of the terminal electrode 400, for example, the second extension 432.
- the wire receiving part 500 is provided in the part 432 to accommodate the wire 200, thereby preventing the wire 200 from being pressed and displaced. Therefore, the tensile force of the wire is improved, thereby improving the resistance to shock and vibration, thereby improving the reliability of the choke coil.
- the positional deviation of the wire does not occur, so that the same quality can be expected in the coupling of the wire and the terminal electrode in a subsequent process.
- flanges 300 are provided at both ends of the core 100 around which the wire 200 is wound, and the terminal electrode 400 is fastened to at least a side of the flange 300.
- an inclined surface (or a rounded 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. Since 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.
- the opening 433 is formed in the third terminal 430 on which the wire 200 is seated, energy generated by the laser is applied to the terminal electrode 400 through the wire 200 during laser irradiation to form the welding part 600. It is possible to suppress the conduction to the third terminal 430 of the. Therefore, it is possible to prevent deformation of the terminal electrode 400 due to heat generated during laser irradiation, and to form the welding part 600 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 700 having the flange 300 coupled to 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 700 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 600 is formed.
- the upper end of the wire 400 positioned outside the terminal electrode 400 may be irradiated with the laser from the upper side to remove the upper side of the coating, and the lower side of the coating may remain, and the upper side and the lower side of the side may be irradiated with 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 wire 600 when forming the weld part 600.
- 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 region of the welded portion 600 and the like. That is, the wire 200 and the terminal electrode 400 are present under the welding part 600, and an insulating layer remains between the welding part 600 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 600 or the like. As a result, an insulation layer may exist in a plurality of regions around the weld part 600. This is because the insulation 600 of the wire 200 between the weld 600 and the terminal electrode 400 is not removed and the insulation 600 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. Since the wire receiving part 500 is provided in the second extension part 432, at least a part of the wire 200 may be accommodated in the wire receiving part 500 when the second extension part 432 is bent. Therefore, when the second extension part 432 is bent, the distortion and the positional distortion of the wire 200 may be prevented.
- a laser beam is irradiated toward the second extension part 432 to form the weld part 600. That is, the second extension part 432 and the wire 200 are melted by laser irradiation, and a spherical weld part 600 is formed on the terminal electrode 400.
- the welding part 600 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 600 from being conducted to the terminal electrode 400 through the wire 200. Therefore, deformation of the terminal electrode 400 due to heat generated during laser irradiation can be prevented and the weld 600 can be formed with optimal energy.
- an air layer formed by the opening between the weld 600 and the flange 300 may be expected to provide a rapid cooling effect after the weld 600 is formed, and maintain a stable shape of the weld 600.
- the cover part 700 is covered to be in contact with the upper portion of the flange 300.
- 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.
- a wire receiving part 500 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 on the side surface of the flange 300 and a wire receiving portion formed in the terminal electrode 400 corresponding to the groove 310. 500) 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.
- the wire receiving part 500 is formed to include the three terminals 430 and correspond to the groove 310 of the flange 300 in the third terminal 430.
- the wire receiving portion 500 when the terminal electrode 400 is fastened to the flange 300, the wire receiving portion 500 is inserted into the groove 310 of the flange 300, the wire receiving portion 500 of the third terminal 430 It may be formed more concave than the surface. Therefore, the wire 200 may be accommodated in the wire receiving part 500 and drawn out.
- the wire receiving portion 500 may have a depth and width of, for example, 0.2 to 2 times the diameter of the wire 200 so that at least a portion of the wire 200 may be accommodated, and preferably, the wire 200 ) May have a depth and width of 0.5 to 1 times the diameter. Since the groove 310 is formed on the side of the flange 300 and the wire receiving portion 500 is formed on the terminal electrode 400 to be fastened to the groove 310, the fastening of the terminal electrode 400 to the flange 300 is performed. It can be more solid.
- a wire accommodating part 500 is further formed to further increase the contact area between the terminal electrode 400 and the flange 300 so as to increase the flange area. Fastening of the 300 and the terminal electrode 400 can be made stronger. In addition, the wire 200 may be more easily drawn out through the wire receiving part 500 of the terminal electrode 400.
- the choke coil according to the embodiments of the present invention may be applied to the wire 200 when the flange 300 is drawn upward. That is, even when the "-" shaped terminal electrode 400 is fastened to the flange 300 and the wire 200 is drawn out to the terminal electrode 400 on the upper side of the flange 300, the wire receiving part 500 is formed. To accommodate at least a portion of the wire 200.
- the choke coil according to the third embodiment of the present invention will be described with reference to FIGS. 14 to 18 as follows.
- FIGS. 14 and 15 are a perspective view and a side view of a part of the choke coil according to a third embodiment of the present invention
- Figures 16 and 17 are a perspective view of a part of the choke coil according to a third embodiment of the present invention and Some enlarged views. That is, FIGS. 14 and 15 are a perspective view and a side view of a portion of the terminal electrode before fixing the wire
- FIGS. 16 and 17 are a perspective view and a side view of a portion of the terminal electrode after fixing the wire.
- 18 is a photograph of a part of the choke coil according to the embodiments of the present invention, in which a wire is accommodated in the wire accommodating part and is sandwiched by the terminal electrode.
- the choke coil according to the third embodiment of the present invention is provided at both ends of the core 100, the wire 200 wound around the core 100, and the core 100.
- the flange 300 provided at a lower height than the central portion, the terminal electrode 400 fastened to both sides of the flange 300, and the wire 200 drawn out onto the terminal electrode 400 above the flange 300 are formed. It may include a wire receiving portion 500 for receiving.
- a welding part formed on the terminal electrode 400 and a cover part provided on the upper part of the core 100 may be further included.
- the third embodiment of the present invention will be described below with reference to contents that differ from the first and second embodiments of the present invention. That is, in the third embodiment of the present invention, since the shapes of the flange and the terminal electrode are different from those of the first and second embodiments of the present invention, the third embodiment of the present invention will be described based on the flange and the terminal electrode.
- the flanges 300 are provided at both ends of the core 100 in the X direction.
- the flange 300 includes a first region 321 in contact with the core 100 and a second region 322 provided at both sides of the first region 321 in the Y direction and not in contact with the core 100. can do.
- the first and second regions 321 and 322 of the flange 300 may be formed to have a predetermined width, width, and height, respectively.
- the core 100 is provided on the first surface of the first region 321, and the second region 322 is provided on two side surfaces of the first region 321. Meanwhile, the first region 321 may be formed higher than the second region 322.
- the first region 321 is in contact with the lower surface of the lid and the second region 322 is at a height such that the weld is not in contact with the lid.
- the first region 321 may be formed to have a height such that the welding portion does not contact the cover part in consideration of the height of the second region 322 and the height of the welding portion.
- the first region 321 may have a width and a width greater than that of the second region 322. Accordingly, a step may be formed between the top surface of the first region 321 and the top surface of the second region 322, and a step may be formed between the front surface of the first region 321 and the front surface of the second region 322. have.
- a terminal electrode 400 having a “c” shape is fastened. That is, the terminal electrode 400 is inserted from one side in the X direction to the other side and fastened to the second region 322 of the flange 300.
- the upper surface of the second region 322 and the surface (that is, the front surface) in the direction in which the terminal electrode 400 is fastened may have a predetermined slope (that is, slope). That is, the second region 322 may have an inclined region having a predetermined slope between the front surface and the upper surface, that is, between the first surface and the sixth surface. In other words, an edge may not be formed between the front surface and the upper surface, and may have a predetermined slope.
- the inclined region may be rounded to have a predetermined curvature, or may be formed to have a predetermined inclined from the upper surface to the front surface.
- a predetermined inclination is formed between the front surface and the upper surface so that the upper surface of the terminal electrode 400 moves along the inclination, and thus, the terminal electrode 400 may be more easily fastened.
- the second region 322 of the flange 300 has a first inclined region having a predetermined width formed between the front surface and the upper surface (ie, the first surface and the sixth surface), as well as between the rear surface and the upper surface (that is, the second surface).
- a second inclined region having a predetermined width may also be formed on the surface and the sixth surface).
- the second inclined region may be rounded to have a predetermined curvature, or may be formed to have a predetermined inclined from an upper surface to a rear surface. Since a predetermined inclination is formed between the rear surface and the upper surface, the wire 200 drawn out to the terminal electrode 400 is guided along the rounded portion, thereby preventing disconnection of the wire 200 and peeling of the coating.
- the wire 200 is cut off at the corner when the wire 200 is drawn out.
- the coating of the wire 200 may be peeled off or the wire 200 may be disconnected, disconnection of the wire 200 drawn out may be prevented by forming the portion round.
- the terminal electrode 400 is inserted into and fastened to the second region 320 of the flange 300, and fixes the wire 200 thereon.
- the terminal electrode 400 may be formed in an approximately "c" shape to be inserted into the flange 300 and fastened. That is, the terminal electrode 400 includes a first terminal 410 in contact with the front surface of the second region 322 of the flange 300, and a second terminal 420 in contact with the bottom surface of the second region 322. And a third terminal 430 in contact with the upper surface of the second region 322. That is, in the first and second embodiments of the present invention, the third terminal 430 is in contact with the side surface of the flange 300, but in the third embodiment of the present invention, the third terminal 430 is connected to the flange 300.
- the first electrode, the second terminal 420 and the third terminal 430 of the terminal electrode 400 may have a substantially "c" shape.
- the third terminal 430 may be provided in a substantially rectangular plate shape. That is, the third terminal 430 may include a first side in contact with the first terminal 410, a second side facing the first side, and a first and second sides of the flange 300 between the first and second sides. It may include a third side in contact with the stepped portion of the second region (310, 320), and a fourth side facing the third side.
- the terminal electrode 400 is inserted into the second area 322 of the flange 300 from an open area facing the first terminal 410, and the second and third terminals 420 and 430 are connected to the flange 300.
- the first and second terminals 410 are in contact with the front surface of the second region 322, and the terminal electrode 400 is fastened to the flange 300.
- the third terminal 430 of the terminal electrode 400 may move to the upper surface of the flange 300 along the inclined surface. have.
- First and second extensions 431 and 432 may be formed in the third terminal 430 of the terminal electrode 400 to fix the ends of the wire 200. Since the first and second extensions 432 and 432 are the same as those described in the first embodiment and modified examples thereof, detailed descriptions thereof will be omitted.
- the wire receiving part 500 may be provided on at least a portion of the terminal electrode 400.
- a groove receiving wire shape part 500 having a predetermined diameter and width and a predetermined length may be formed on one surface of the second extension part 432.
- the wire extension part 500 may be formed in the third terminal 430 or may be formed in both the third terminal 430 and the second extension part 432.
- the wire accommodating part 500 may be provided to accommodate and fix the wire 200 drawn out onto the third terminal 430 as illustrated in FIGS. 16 and 17.
- 18 is a photograph of a state in which the wire 200 is accommodated in the wire receiving part 500 formed in the second extension part 432 by bending the second extension part 432.
- the embodiments of the present invention can provide a wire receiving portion in at least a part of the terminal electrode to minimize the deformation of the wire shape and prevent the wire from being displaced.
- Table 1 and Table 2 show the deformation of the wire according to the pressing pressure of the conventional example in which the wire accommodating part is not provided and the embodiment of the present invention in which the wire accommodating part is provided.
- Table 1 shows the height and the degree of pressing of the wire according to the pressing pressure of the choke coil that does not include the conventional wire receiving portion, [Table 2] of the choke coil including the wire receiving portion according to an embodiment of the present invention
- the wire height and the degree of pressing were indicated according to the pressing pressure.
- the height of the wire is the height of the wire between the second extension and the third terminal after pressing the wire
- the pressed degree of the wire is the height of the wire as the height of the wire compared to the initial diameter of the wire is indicated as-because the height is reduced.
- the diameter of the wire is 70 ⁇ m
- the embodiment of the present invention formed the wire lead-out portion in various widths in the second extension.
- the embodiment of the present invention has less pressing degree, that is, shape deformation of the wire, and thus, the height of the wire is higher than that of the related art.
- the degree of pressing of the wire is improved. That is, it can be seen that the width of the wire receiving portion is improved by pressing 0.06 mm rather than 0.04 mm, and the pressing degree of 0.08 mm rather than 0.06 mm is further improved. Therefore, the maximum effect can be expected when the width of the wire receiving portion is larger than the diameter of the wire.
Abstract
Description
8N | 6N | 4N | ||||
와이어 높이(㎛) | 와이어 눌린 정도 | 와이어 높이(㎛) | 와이어 눌린 정도 | 와이어 높이(㎛) | 와이어 눌린 정도 | |
평균 | 18 | -74.2% | 23 | -67.1% | 38 | -45.7% |
최소 | 16 | -77.1% | 18 | -74.3% | 31 | -55.7% |
최대 | 24 | -65.7% | 30 | -57.1% | 43 | -38.6% |
0.04㎜ | 0.06㎜ | 0.08㎜ | |||||
와이어 높이(㎛) | 와이어 눌린 정도 | 와이어 높이(㎛) | 와이어 눌린 정도 | 와이어 높이(㎛) | 와이어 눌린 정도 | ||
4N | 평균 | 55 | -21.4% | 55 | -21.4% | 62 | -11.4% |
최소 | 41 | -41.4% | 46 | -34.3% | 56 | -20.0% | |
최대 | 64 | -8.6% | 64 | -8.6% | 67 | -4.3% | |
6N | 평균 | 36 | -48.6% | 40 | -42.9% | 55 | -21.4% |
최소 | 30 | -57.1% | 38 | -45.7% | 52 | -25.7% | |
최대 | 42 | -32.9% | 45 | -35.7% | 60 | -14.3% |
Claims (11)
- 코어;상기 코어의 일 방향의 양단부에 마련된 플랜지;상기 플랜지에 결합되는 단자 전극;상기 코어에 권선되며, 말단부가 상기 단자 전극으로 인출되는 와이어; 및상기 와이어의 말단부를 수용하는 와이어 수용부를 포함하는 초크 코일.
- 청구항 1에 있어서, 상기 와이어 수용부는 상기 단자 전극의 적어도 일부에 마련된 초크 코일.
- 청구항 2에 있어서, 상기 단자 전극은 상기 플랜지의 수평 방향으로 측면 또는 수직 방향의 일면에 접촉되는 단자를 포함하고,상기 와이어는 상기 단자 상으로 인출되는 초크 코일.
- 청구항 3에 있어서, 상기 단자로부터 일 방향으로 연장되며 상기 단자를 향해 절곡되는 연장부를 더 포함하는 초크 코일.
- 청구항 4에 있어서, 상기 와이어 수용부는 상기 단자 및 상기 연장부 중 적어도 하나에 마련된 초크 코일.
- 청구항 5에 있어서, 상기 와이어 수용부는 상기 와이어 직경의 0.2배 내지 1배의 깊이와 상기 와이어 직경의 0.2배 내지 2배의 폭을 갖는 홈을 포함하는 초크 코일.
- 청구항 6에 있어서, 상기 홈은 서로 대면하는 상기 단자의 일면 및 상기 연장부의 일면 중 적어도 하나에 마련된 초크 코일.
- 청구항 7에 있어서, 상기 와이어 수용부는 상기 홈과 대향하여 상기 단자의 타면 및 상기 연장부의 타면에 마련된 볼록부를 더 포함하는 초크 코일.
- 청구항 8에 있어서, 상기 플랜지는 상기 단자의 볼록부에 대응하여 오목하게 형성되어 상기 볼록부를 수용하는 가이드 홈을 더 포함하는 초크 코일.
- 청구항 1에 있어서, 상기 와이어 수용부에 중첩되어 형성된 개구부를 더 포함하는 초크 코일.
- 청구항 1 내지 청구항 10 중 어느 한 항에 있어서, 상기 와이어 수용부 상에 형성된 용접부 및 상기 코어를 덮도록 마련된 덮개부 중 적어도 하나를 더 포함하는 초크 코일.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/608,183 US20210104356A1 (en) | 2017-05-12 | 2018-05-10 | Choke coil |
CN201880030580.5A CN110651341A (zh) | 2017-05-12 | 2018-05-10 | 扼流圈 |
EP18799357.1A EP3624151B1 (en) | 2017-05-12 | 2018-05-10 | Choke coil |
JP2019561226A JP2020519031A (ja) | 2017-05-12 | 2018-05-10 | チョークコイル |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20170059289 | 2017-05-12 | ||
KR10-2017-0059289 | 2017-05-12 | ||
KR10-2017-0127910 | 2017-09-29 | ||
KR1020170127910A KR101981467B1 (ko) | 2017-05-12 | 2017-09-29 | 초크 코일 |
Publications (1)
Publication Number | Publication Date |
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WO2018208100A1 true WO2018208100A1 (ko) | 2018-11-15 |
Family
ID=64105534
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Application Number | Title | Priority Date | Filing Date |
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PCT/KR2018/005375 WO2018208100A1 (ko) | 2017-05-12 | 2018-05-10 | 초크 코일 |
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WO (1) | WO2018208100A1 (ko) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
JP2006004979A (ja) * | 2004-06-15 | 2006-01-05 | Tdk Corp | コイル部品 |
JP2006121013A (ja) * | 2004-10-25 | 2006-05-11 | Tdk Corp | コイル部品の製造方法 |
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 |
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2018
- 2018-05-10 WO PCT/KR2018/005375 patent/WO2018208100A1/ko active Application Filing
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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 |
JP2006004979A (ja) * | 2004-06-15 | 2006-01-05 | Tdk Corp | コイル部品 |
JP2006121013A (ja) * | 2004-10-25 | 2006-05-11 | Tdk Corp | コイル部品の製造方法 |
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 |
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