# US 11,908,608 B2 · Coil component > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,908,608 B2 - Document ID: US11908608B2 - Status: Granted - Kind: B2 - Application number: 17/117,070 - Filed: 2020-12-09 - Published: 2021-06-17 - Granted: 2024-02-20 - Earliest claimed: 2019-12-11 - Assignees: Murata Manufacturing Co., Ltd. - Applicants: Murata Manufacturing Co., Ltd. - Inventors: Kenichiro Maki - Web page: https://patentgrep.com/patent/US11908608B2 ## CPC - H01F 27/2823: {Wires (H01F27/2866 takes precedence)} - H01F 37/00: Fixed inductances not covered by group H01F17/00 - H01F 17/04: with magnetic core - H01F 27/06: Mounting, supporting, or suspending transformers, reactors, or choke coils {not being of the signal type} - H01F 27/24: Magnetic cores - H01F 27/263: {Fastening parts of the core together} - H01F 27/2847: {Sheets; Strips (H01F27/2866 takes precedence)} - H01F 27/306: {Fastening or mounting coils or windings on core, casing or other support} - H01F 27/324: {Insulation between coil and core, between different winding sections, around the coil; Other insulation structures} - H01F 41/04: for manufacturing coils {(coils for transformer or inductances H01F27/28)} - H01F 38/48: {Common mode inductor for reducing or eliminating common mode noise on parallel lines} - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ## Abstract A coil component includes a frame-shaped magnetic core including wound sections facing each other, cylindrical coil conductors, and a holder made of an insulating material and holding the coil conductors and the magnetic core. The magnetic core extends through the coil conductors such that the coil conductors and the wound sections are associated with each other. The holder includes a first partition disposed between the magnetic core and a first winding wire end of each of the coil conductors, a second partition disposed between the magnetic core and a second winding wire end of each of the coil conductors, and a third partition disposed between the coil conductors. The first to third partitions are integrally formed. ## Claims ### Claim 1 A coil component comprising: a frame-shaped magnetic core including wound sections facing each other; a pair of coil conductors in which a wire is cylindrically wound, the magnetic core extending through the coil conductors such that the coil conductors and the wound sections are associated with each other; and a holder made of an insulating material and surrounding and holding the pair of coil conductors and the magnetic core, the holder including a first partition disposed between the magnetic core and a first winding wire end of each of the pair of the coil conductors, a second partition disposed between the magnetic core and a second winding wire end of each of the pair of the coil conductors, a third partition disposed between the pair of coil conductors, an upper flat surface that extends in a direction parallel to an axial direction of the coil conductors, and a lower flat surface that faces the upper flat surface on an opposite side of the coil conductors and extends in the direction parallel to the axial direction of the coil conductors, wherein wound sections of the coil conductors are covered on opposite sides in a direction orthogonal to the axial direction of the coil conductors by the upper flat surface and the lower flat surface, and the first partition, the second partition, the third partition, the upper flat surface, and the lower flat surface are integral with each other. ### Claim 2 (depends on 1) The coil component according to claim 1, wherein the magnetic core is separable into a first magnetic core and a second magnetic core, the first partition is disposed between the first magnetic core and the first winding wire end of each of the pair of the coil conductors, and the second partition is disposed between the second magnetic core and the second winding wire end of each of the pair of the coil conductors. ### Claim 3 (depends on 2) The coil component according to claim 2, wherein the wire is a rectangular wire. ### Claim 4 (depends on 2) The coil component according to claim 2, wherein the magnetic core is fixed by a fastening unit made of a metallic material. ### Claim 5 (depends on 2) The coil component according to claim 2, wherein the holder is on a support. ### Claim 6 (depends on 2) The coil component according to claim 2, wherein the magnetic core is made of a ferrite-based material. ### Claim 7 (depends on 2) The coil component according to claim 2, wherein the coil component is a common-mode choke coil. ### Claim 8 (depends on 1) The coil component according to claim 1, wherein the wire is a rectangular wire. ### Claim 9 (depends on 8) The coil component according to claim 8, wherein the magnetic core is fixed by a fastening unit made of a metallic material. ### Claim 10 (depends on 8) The coil component according to claim 8, wherein the holder is on a support. ### Claim 11 (depends on 8) The coil component according to claim 8, wherein the magnetic core is made of a ferrite-based material. ### Claim 12 (depends on 1) The coil component according to claim 1, wherein the magnetic core is fixed by a fastening unit made of a metallic material. ### Claim 13 (depends on 12) The coil component according to claim 12, wherein the fastening unit includes a terminal section, and the terminal section is opposed to a mounting substrate. ### Claim 14 (depends on 13) The coil component according to claim 13, wherein the terminal section is coated with plating. ### Claim 15 (depends on 1) The coil component according to claim 1, wherein an axis of each respective coil conductor extends along a horizontal plane. ### Claim 16 (depends on 1) The coil component according to claim 1, wherein the holder is on a support. ### Claim 17 (depends on 1) The coil component according to claim 1, wherein the magnetic core is made of a ferrite-based material. ### Claim 18 (depends on 1) The coil component according to claim 1, wherein the coil component is a common-mode choke coil. ### Claim 19 (depends on 1) The coil component according to claim 1, wherein the coil conductors are of a longitudinally wound type.