# US 2021/0345482 A1 · Bus Bar > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0345482 A1 - Document ID: US20210345482A1 - Status: Published application - Kind: A1 - Application number: 17/236,761 - Filed: 2021-04-21 - Published: 2021-11-04 - Earliest claimed: 2020-04-30 - Assignees: TDK Electronics Co., Ltd. - Applicants: TDK Electronics AG - Inventors: Fabian Beck; Zilong Kuang - Web page: https://patentgrep.com/patent/US20210345482A1 ## CPC - H05K 7/14329: {specially adapted for the configuration of power bus bars} - H02M 1/44: Circuits or arrangements for compensating for electromagnetic interference in converters or inverters - H03H 1/0007: {of radio frequency interference filters} - H05K 1/0233: {Filters, inductors or a magnetic substance} - H05K 2201/10272: Busbars, i.e. thick metal bars mounted on the printed circuit board [PCB] as high-current conductors - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) - H03H: IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS (waveguides, resonators, lines or other devices of the waveguide type H01P) ## Abstract In an embodiment a bus bar includes a first interface and a second interface, a filter element electrically connected between the first and the second interface and a first rail between the first interface and the second interface, wherein the first rail includes a central section with a metal sheet and a dielectric material at least partially covering the central section. ## Claims ### Claim 1 A bus bar comprising: a first interface and a second interface; a filter element electrically connected between the first and the second interface; and a first rail between the first interface and the second interface, wherein the first rail comprises a central section with a metal sheet and a dielectric material at least partially covering the central section. ### Claim 2 (depends on 1) The bus bar according to claim 1, wherein the first and the second interface are arranged at opposite distal ends of the bus bar and the central section is arranged between the first and the second interface. ### Claim 3 (depends on 1) The bus bar according to claim 1, wherein the central section has a flat upper surface. ### Claim 4 (depends on 1) The bus bar according to claim 1, further comprising one or more additional rails. ### Claim 5 (depends on 1) The bus bar according to claim 1, wherein the first interface and/or the second interface comprise(s) a mechanical connection. ### Claim 6 (depends on 5) The bus bar according to claim 5, wherein the mechanical connection is configured to: mechanically connect the bus bar to an external mounting location; and electrically connect the bus bar to the external mounting location. ### Claim 7 (depends on 5) The bus bar according to claim 5, wherein the mechanical connection has an elongated shape that has an extension directed away from the bus bar. ### Claim 8 (depends on 7) The bus bar according to claim 7, wherein the elongated shape has a section along an extension direction with a uniform cross section. ### Claim 9 (depends on 7) The bus bar according to claim 7, wherein the elongated shape has a cross section selected from a quadratic cross section, a rectangular cross section, a circular cross section, or an elliptical cross section. ### Claim 10 (depends on 5) The bus bar according to claim 5, wherein the mechanical connection has a distal end that comprises a flat section with a hole. ### Claim 11 (depends on 5) The bus bar according to claim 5, wherein the mechanical connection comprises two, three or more pieces. ### Claim 12 (depends on 11) The bus bar according to claim 11, wherein all pieces of the mechanical connection are arranged at the same side of the bus bar. ### Claim 13 (depends on 1) The bus bar according to claim 1, further comprising a DC-Link capacitor as a circuit element. ### Claim 14 (depends on 1) The bus bar according to claim 1, wherein the first interface is configured to electrically connect to a component selected from a further electrical component, a semiconductor component, an inverter, a battery or an electric motor drive. ### Claim 15 (depends on 1) The bus bar according to claim 1, wherein the first interface comprises one, two, three or more connections to be connected to a first potential and one, two, three or more connections for connection to a second potential. ### Claim 16 (depends on 1) The bus bar according to claim 1, wherein the second interface is configured to electrically connect to a component selected from a further electrical component, a semiconductor component, an inverter, a battery, or an electric motor drive. ### Claim 17 (depends on 1) The bus bar according to claim 1, further comprising a second mechanical connection at a side of the second interface, wherein the second mechanical connection is configured to mechanically connect the bus bar to a second external mounting location and to electrically connect the filter element to a ground potential of the second external mounting location. ### Claim 18 (depends on 1) The bus bar according to claim 1, wherein the second interface comprises one, two, three or more connections for a first potential, one, two, three or more connections for a second potential, one, two, three or more connections for a ground potential. ### Claim 19 (depends on 1) The bus bar according to claim 1, wherein the filter element comprises resistance elements, capacitance elements and inductance elements. ### Claim 20 (depends on 1) The Bus bar according to claim 1, further comprising: one or more dielectric layers between conducting rails; and/or one or more conducting rails between dielectric layers. ### Claim 21 (depends on 1) The bus bar according to claim 1, further comprising one or more rails electrically connected to a ground potential. ### Claim 22 (depends on 21) The bus bar according to claim 21, wherein the one or more rails have a section along a vertical or ascending or descending direction. ### Claim 23 (depends on 1) A system comprising: a battery; an electrical motor drive; and the bus bar according to claim 1, wherein the bus bar is connected between the batter and the electrical motor drive, and wherein system is an electrical system of a vehicle.