# US 11,908,610 B2 · Inductor, inductor with circuit board, and electrical junction box > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,908,610 B2 - Document ID: US11908610B2 - Status: Granted - Kind: B2 - Application number: 16/969,770 - Filed: 2019-01-25 - Published: 2020-12-31 - Granted: 2024-02-20 - Earliest claimed: 2018-02-13 - Assignees: Autonetworks Technologies, Ltd.; Sumitomo Wiring Systems, Ltd.; Sumitomo Electric Industries, Ltd. - Applicants: AutoNetworks Technologies, Ltd.; Sumitomo Wiring Systems, Ltd.; Sumitomo Electric Industries, Ltd. - Inventors: Toshiyuki Tsuchida; Shigeki Yamane; Junya Aichi - Web page: https://patentgrep.com/patent/US11908610B2 ## CPC - H01F 27/292: {Surface mounted devices} - H05K 9/0026: {integrally formed from metal sheet} - H01F 27/02: Casings - H01F 27/06: Mounting, supporting, or suspending transformers, reactors, or choke coils {not being of the signal type} - H01F 27/065: {Mounting on printed circuit boards} - H01F 27/24: Magnetic cores - H01F 27/263: {Fastening parts of the core together} - H01F 27/266: {Fastening or mounting the core on casing or support (on coil H01F27/30)} - H01F 27/363: {made of electrically conductive material} - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract An inductor includes: a magnetic core; a conduction path penetrating the magnetic core; a pedestal portion including a core holding portion that holds the magnetic core, and support portions that support, when placed on a circuit board, electronic components at a height at which the electronic components can be accommodated on the circuit board side with respect to the core holding portion; and a shield portion that is provided on the circuit board side with respect to the magnetic core, and that shields a magnetic field generated by flow of electricity in the conduction path. ## Claims ### Claim 1 An inductor, comprising: a magnetic core; a conduction path penetrating the magnetic core; a pedestal portion including a core holding portion that holds the magnetic core, and a support portion that supports, when placed on a circuit board, an electronic component at a height at which the electronic component can be accommodated on the circuit board and disposed between the circuit board and the core holding portion; a shield portion having a bottom wall and a side wall orthogonal to the bottom wall so as to define a seat, the bottom wall spaced apart from the circuit board and disposed between the circuit board and the magnetic core, and that shields a magnetic field generated by flow of electricity in the conduction path, wherein the core holding portion is disposed within the seat of the shield portion; and a conductive cover portion having a top wall and a side wall that covers a top and a side of the magnetic core, the side wall of the conductive cover portion is spaced apart from the side wall of the shield portion. ### Claim 2 (depends on 1) The inductor according to claim 1, wherein the shield portion is provided over the entire surface of the pedestal portion directly opposing the circuit board. ### Claim 3 (depends on 1) The inductor according to claim 1, further comprising: a terminal portion that is connected to the conduction path, and that is connectable to an external terminal, wherein the pedestal portion includes a terminal holding portion that holds the terminal portion. ### Claim 4 (depends on 1) An inductor with circuit board, comprising: the inductor according to claim 1; a circuit board on which the pedestal portion is placed, and that has a ground pattern connected to a ground potential; and the electronic component that is mounted on the circuit board, and that has a terminal connected to the ground pattern. ### Claim 5 (depends on 1) An electrical junction box, comprising: the inductor according to claim 1; and a case that accommodates the inductor, the circuit board, and the electronic component. ### Claim 6 (depends on 2) The inductor according to claim 2, further comprising: a terminal portion that is connected to the conduction path, and that is connectable to an external terminal, wherein the pedestal portion includes a terminal holding portion that holds the terminal portion. ### Claim 7 (depends on 4) The inductor with circuit board as set forth in claim 4, further comprising: a conductive cover portion that covers the side of the magnetic core opposite to the circuit board side. ### Claim 8 (depends on 4) The inductor with circuit board as set forth in claim 4, wherein the shield portion is provided over the entire surface of the pedestal portion on the circuit board side. ### Claim 9 (depends on 4) The inductor with circuit board as set forth in claim 4, further comprising: a terminal portion that is connected to the conduction path, and that is connectable to an external terminal, wherein the pedestal portion includes a terminal holding portion that holds the terminal portion. ### Claim 10 (depends on 5) The electrical junction box as set forth in claim 5, further comprising: a conductive cover portion that covers the side of the magnetic core opposite to the circuit board side. ### Claim 11 (depends on 5) The electrical junction box as set forth in claim 5, wherein the shield portion is provided over the entire surface of the pedestal portion on the circuit board side. ### Claim 12 (depends on 5) The electrical junction box as set forth in claim 5, further comprising: a terminal portion that is connected to the conduction path, and that is connectable to an external terminal, wherein the pedestal portion includes a terminal holding portion that holds the terminal portion.