# US 11,310,948 B2 · Bendable shielded bus bar > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,310,948 B2 - Document ID: US11310948B2 - Status: Granted - Kind: B2 - Application number: 16/083,933 - Filed: 2017-03-13 - Published: 2020-09-17 - Granted: 2022-04-19 - Earliest claimed: 2016-03-11 - Assignees: Flex-Cable, Inc. - Applicants: Flex-Cable - Inventors: Erwin Kroulik - Web page: https://patentgrep.com/patent/US11310948B2 ## CPC - H05K 9/0098: {for shielding electrical cables} - B32B 1/08: Tubular products - B32B 3/06: for securing layers together; for attaching the product to another member, e.g. to a support {, or to another product, e.g. groove/tongue, interlocking} - B32B 3/26: characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids {(foam layer B32B5/18; layer of synthetic resin characterised by fillers that create voids or cavities B32B27/205); characterised by an apertured layer} - B32B 3/266: {characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12} - B32B 7/025: Electric or magnetic properties - B32B 7/04: Interconnection of layers - B32B 15/02: {Layer formed of wires, e.g. mesh} - B32B 15/043: {of metal (B32B15/01 takes precedence)} - B32B 15/06: of {natural rubber or synthetic} rubber - B32B 15/08: of synthetic resin - B32B 15/095: comprising polyurethanes - B32B 15/18: comprising iron or steel {(B32B15/011, B32B15/012 and B32B15/013 take precedence)} - B32B 15/20: comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)} - B32B 25/14: comprising {synthetic rubber copolymers (B32B25/18 and B32B25/20 take precedence)} - B32B 25/16: comprising polydienes {homopolymers} or poly-halodienes {homopolymers (B32B25/12 takes precedence)} - B32B 25/20: comprising silicone rubber - B32B 27/06: as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a layer of a particular substance B32B9/045; next to a bituminous or tarry layer B32B11/046; next to a water setting substance layer B32B13/12; next to a metal layer B32B15/08; next to a glass layer B32B17/10; next to a layer formed of natural mineral fibres or particles B32B19/045; next to a wood layer B32B21/08; next to a cellulosic plastic layer B32B23/08; next to a natural or synthetic rubber layer B32B25/08)} - B32B 27/285: {comprising polyethers} - B32B 27/40: comprising polyurethanes - H02G 5/00: Installations of bus-bars - H05K 9/0086: {comprising a single discontinuous metallic layer on an electrically insulating supporting structure, e.g. metal grid, perforated metal foil, film, aggregated flakes, sintering} - B32B 2250/04: 4 layers - B32B 2250/42: Alternating layers, e.g. ABAB(C), AABBAABB(C) - B32B 2255/06: on metal layer - B32B 2255/26: Polymeric coating - B32B 2307/202: Conductive - B32B 2307/206: Insulating - B32B 2307/212: Electromagnetic interference shielding - B32B 2307/544: Torsion strength; Torsion stiffness - B32B 2307/546: Flexural strength; Flexion stiffness - B32B 2307/732: Dimensional properties - B32B 2457/00: Electrical equipment - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES ## Abstract A bus bar assembly is provided that includes an electrical conductor with a rectangular cross-section. A first insulation layer surrounds the electrical conductor. A shielding layer surrounds the first insulation layer. The shielding layer is formed from an embossed conductive foil wrapped around the first insulation layer with overlapping sections. A method of making the bus bar assembly is provided that includes an electrical conductor being surrounded with a first insulating layer. The first insulating layer is then wrapped with a shielding layer formed from a conductive foil wrapped around the first insulation layer. ## Claims ### Claim 1 A bus bar assembly comprising: an electrical conductor having the shape of a bar, rod, flat strips, or tube, the electrical conductor having a rectangular cross-section; a first insulation layer surrounding the electrical conductor, the first insulation layer having an outer surface with four sides; a shielding layer surrounding the outer surface of said first insulation layer and contacting the four sides, said shielding layer formed from only an embossed conductive foil spirally wrapped around the first insulation layer with overlapping sections and a plurality of overlapping seams. ### Claim 2 (depends on 1) The bus bar assembly of claim 1 further comprising a second insulating layer above the shielding layer. ### Claim 3 (depends on 1) The bus bar assembly of claim 1 wherein said conductive foil is formed in a ribbon. ### Claim 4 (depends on 1) The bus bar assembly of claim 1 wherein a degree or width of the overlapping sections is determined by a wrapping angle . ### Claim 5 (depends on 4) The bus bar assembly of claim 4 wherein the wrapping angle is between twenty to seventy degrees. ### Claim 6 (depends on 1) The bus bar assembly of claim 1 wherein said conductive foil is embossed with a pattern in only one direction from a plane of said conductive foil. ### Claim 7 (depends on 6) The bus bar assembly of claim 6 wherein said pattern is at least one of diamonds, offset rectangles, or squares. ### Claim 8 (depends on 6) The bus bar assembly of claim 6 wherein said pattern is at least one of longitudinal, vertical, or diagonal lines depending on the embossing angle chosen. ### Claim 9 (depends on 1) The bus bar assembly of claim 1 wherein said conductive foil is fenestrated. ### Claim 10 (depends on 1) The bus bar assembly of claim 1 wherein said conductive foil is a screen like pattern of squares, hexagons, triangles, or dimples. ### Claim 11 (depends on 2) The bus bar assembly of claim 2 wherein said first insulator layer and said second insulator layer is formed rubber, plastic, or other composite materials. ### Claim 12 (depends on 1) The bus bar assembly of claim 1 wherein said electrical conductor is made of copper, brass, aluminum, stainless steel alloys, or other high conductivity materials. ### Claim 13 (depends on 1) The bus bar assembly of claim 1 further comprising a set of terminations on said electrical conductor. ### Claim 14 A method of making a bus bar assembly, the method comprising: providing an electrical conductor having the shape of a bar, rod, flat strips, or tube, the electrical conductor having a rectangular cross-section; surrounding said electrical conductor with a first insulating layer, the first insulation layer having an outer surface with four sides; spirally wrapping the outer surface of said first insulating layer with a shielding layer such that the shielding layer has overlapping sections and a plurality of overlapping seams that contact the four sides of said first insulating layer; and wherein said shielding layer is formed from only an embossed conductive foil wrapped around the first insulation layer. ### Claim 15 (depends on 14) The method of claim 14 further comprising placing a second insulating layer above the shielding layer. ### Claim 16 (depends on 14) The method of claim 14 wherein said embossed conductive foil is formed in a ribbon. ### Claim 17 (depends on 16) The method of claim 16 wherein said wrapping is with overlapping sections with successive wraps wherein the overlapping sections overlap between 0 and 50% of a width of said ribbon.