# US 11,444,517 B2 · Device for producing stranded wires, a stranded wire and an electric machine having such a stranded wire > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,444,517 B2 - Document ID: US11444517B2 - Status: Granted - Kind: B2 - Application number: 16/757,135 - Filed: 2018-11-05 - Published: 2020-10-29 - Granted: 2022-09-13 - Earliest claimed: 2017-11-06 - Assignees: Jheeco E-Drive AG - Applicants: Jheeco E-Drive AG - Inventors: Martin Stöck; Joel Bauer - Web page: https://patentgrep.com/patent/US11444517B2 ## CPC - H02K 15/35: Form-wound windings - H02K 3/14: with transposed conductors, e.g. twisted conductors - H02K 15/04: of windings prior to their mounting into the machines (insulating windings H02K15/10, H02K15/12) - H02K 15/0431: {Concentrated windings} - H02K 15/105: {to the windings} - H02K 15/30: Manufacture of winding connections - H02K 15/33: Connecting winding sections; Forming leads; Connecting leads to terminals - Y10T 29/49009: Dynamoelectric machine - Y10T 29/53143: Motor or generator - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The invention relates to a method for producing stranded wires, including the steps of applying an insulation layer to lines, separating the insulated lines, individually removing the insulation layer from the separated lines along a partial length of the lines, and bringing the lines together to form a stranded wire, wherein the partial lengths are arranged at the same level at least in sections for the purpose of forming a non-insulated contact region. ## Claims ### Claim 1 a method for producing stranded wires, comprising: applying an insulation layer to lines to produce insulated lines; separating the insulated lines using a separating device to keep the insulated lines distanced from each other; removing the insulation layer from the separated lines along a partial length of the insulated lines using an insulation stripping device; and bringing the lines together after removing the insulation layer from the partial length of the lines to form a stranded wire using a stranding device such that the partial lengths of the lines are arranged at the same position at least in sections to form a non-insulated contact region. ### Claim 2 (depends on 1) The method of claim 1 wherein the method takes place continuously. ### Claim 3 (depends on 1) The method of claim 1 wherein at least said removing and said bringing steps take place batchwise. ### Claim 4 (depends on 1) The method of claim 1 wherein said removal step comprises laser ablation of the insulation layer. ### Claim 5 (depends on 1) The method of claim 1 wherein the lines are arranged laterally spaced apart from one another during said removing step. ### Claim 6 (depends on 1) The method of claim 1 wherein different-length, non-insulated partial lengths of the lines are formed during said removing step. ### Claim 7 (depends on 1) The method of claim 1 wherein equal-length, non-insulated partial lengths of the lines, said partial lengths arranged in an offset manner, are formed during the removing step. ### Claim 8 (depends on 1) The method of claim 1 wherein different-length, non-insulated partial lengths of the lines are formed based on different transportation speeds of the lines during said removing step. ### Claim 9 (depends on 1) The method of claim 1 wherein said bringing the lines together comprises stranding the lines. ### Claim 10 (depends on 1) The method of claim 1 wherein said bringing the lines together further comprises compression molding to form a shaped stranded wire. ### Claim 11 (depends on 1) The method of claim 1 wherein ends of the non-insulated partial lengths that are disposed at a rear in a transportation direction of the lines are arranged flush when the lines are brought together in accordance with said bringing step. ### Claim 12 (depends on 1) The method of claim 1 wherein ends of the non-insulated partial lengths that are disposed at a front in a transportation direction of the lines are arranged flush when the lines are brought together in accordance with said bringing step. ### Claim 13 (depends on 12) The method of claim 12 wherein the ends of the non-insulated partial lengths that are at the front in the transportation direction of the lines form a start of a new stranded wire. ### Claim 14 (depends on 1) The method of claim 1 wherein the lines comprises a plurality of individual wires and/or partial stranded wires. ### Claim 15 An apparatus for producing stranded wires, comprising: an insulating device configured to apply an insulation layer to lines; a separating device configured to separate the insulated lines to keep the insulated lines distanced from each other; and an insulation stripping device configured to individually remove the insulation layer from the separated lines along a partial length of the lines; and a stranding device configured to bring the lines together to form a stranded wire; wherein the stranding device and the insulation stripping device interact such that the partial lengths of the lines are arranged at the same position at least in sections to form a non-insulated contact region.