# US 12,003,184 B2 · Power converter assembly and a power system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,184 B2 - Document ID: US12003184B2 - Status: Granted - Kind: B2 - Application number: 17/621,637 - Filed: 2019-06-24 - Published: 2022-11-10 - Granted: 2024-06-04 - Earliest claimed: 2019-06-24 - Assignees: Volvo Construction Equipment AB - Applicants: Volvo Construction Equipment AB - Inventors: Anders Berg-Palmqvist; Arto Honkanen; Carl Fredrik Wangenborn; Alexander Svensson - Web page: https://patentgrep.com/patent/US12003184B2 ## CPC - H05K 7/14324: {comprising modular units, e.g. DIN rail mounted units} - B60R 16/02: electric {constitutive elements} - H02G 5/04: Partially-enclosed installations, e.g. in ducts and adapted for sliding or rolling current collection - H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections} - H05K 7/14329: {specially adapted for the configuration of power bus bars} - H05K 7/2089: {for power electronics, e.g. for inverters for controlling motor} - 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 - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES - 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) ## Abstract The invention relates to a power converter assembly including at least two power converter units; a busbar; at least two connecting elements, each connecting element electrically connecting one of said power converter units to the busbar, thereby interconnecting the at least two power converter units; and at least one converter housing, enclosing and shielding at least one of said power converter units. It further includes a busbar housing in which the busbar is contained and shielded, wherein the at least two connecting elements are electrically isolated from the busbar housing and from the at least one converter housing. The invention further relates to a working machine and a power system including said power converter assembly. ## Claims ### Claim 1 A power converter assembly comprising: at least two power converter units; a busbar; at least two connecting elements, each connecting element galvanically connecting one of said power converter units to the busbar, thereby interconnecting the at least two power converter units; and at least one converter housing, wherein the at least one converter housing encloses and shields at least one of said power converter units; wherein the power converter assembly further comprises a busbar housing in which the busbar is contained and shielded, wherein the at least two connecting elements are galvanically isolated from the busbar housing and from the at least one converter housing. ### Claim 2 (depends on 1) The power converter assembly according to claim 1, wherein the busbar housing is galvanically connected to said at least one converter housing. ### Claim 3 (depends on 2) The power converter assembly according to claim 2, wherein the busbar housing is galvanically connected to said at least one converter housing by means of at least one metal-to-metal contact. ### Claim 4 (depends on 1) The power converter assembly according to claim 1, wherein each connecting element of the at least two connecting elements is galvanically isolated from the busbar housing and the at least one converter housing by means of an air gap provided between each of the connecting elements and the respective housing. ### Claim 5 (depends on 1) The power converter assembly according to claim 1, wherein the busbar housing and/or the at least one converter housing comprises impermeable outer walls. ### Claim 6 (depends on 1) The power converter assembly according to claim 1, wherein the power converter assembly comprises at least one electrical input and/or output terminal located outside of the busbar housing. ### Claim 7 (depends on 6) The power converter assembly according to claim 6, wherein at least one of the at least one electrical input and/or output terminal is configured to be connected to a power source, and/or wherein at least one of the at least one electrical input and/or output terminal is configured to be connected to an electric machine. ### Claim 8 (depends on 1) The power converter assembly according to claim 1, wherein the connecting elements are solid connection rods. ### Claim 9 (depends on 1) The power converter assembly according to claim 1, comprising at least two of said converter housings, wherein each one of said power converter units is enclosed and shielded in a respective one of said converter housings. ### Claim 10 (depends on 1) The power converter assembly according to claim 1, wherein said at least one converter housing comprises at least two compartments, each compartment enclosing and shielding one of said power converter units. ### Claim 11 (depends on 1) The power converter assembly according to claim 1, further comprising a casing in which the at least one converter housing is contained. ### Claim 12 (depends on 1) A power system comprising at least one power source and the power converter assembly according to claim 1 connected to the at least one power source. ### Claim 13 (depends on 12) The power system according to claim 12, wherein the power system is an electric drive system for driving an electric motor. ### Claim 14 (depends on 1) A working machine comprising the power converter assembly according to claim 1. ### Claim 15 (depends on 1) A vehicle comprising the power converter assembly according to claim 1.