# US 11,114,233 B2 · AC/DC converter > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,114,233 B2 - Document ID: US11114233B2 - Status: Granted - Kind: B2 - Application number: 16/700,934 - Filed: 2019-12-02 - Published: 2020-06-04 - Granted: 2021-09-07 - Earliest claimed: 2018-12-04 - Assignees: Thales - Applicants: Thales - Inventors: Rémi Louviot; Rémy Biaujaud; Jean-Marc Bouffay; Philippe Dumont; Eric Touzet - Web page: https://patentgrep.com/patent/US11114233B2 ## CPC - H01F 27/306: {Fastening or mounting coils or windings on core, casing or other support} - H01F 27/324: {Insulation between coil and core, between different winding sections, around the coil; Other insulation structures} - H01F 27/263: {Fastening parts of the core together} - H01F 41/06: Coil winding - H02M 1/12: Arrangements for reducing harmonics from AC input or output - H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections} - H02M 7/06: using discharge tubes without control electrode or semiconductor devices without control electrode - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - 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 An AC/DC converter comprising a set of two rectifying bridges, each rectifying bridge comprising a first output connected to an output terminal of the AC/DC converter by an interphase inductor. The interphase inductor may comprise a magnetic circuit comprising two branches that are substantially parallel and two windings, each winding being wound about one branch selected from the two branches. Each winding may be held away from the magnetic circuit, at every point of the winding, by means of a set of at least one holding block made of a material having an A-scale Shore hardness lower than or equal to 50 and being distant at every point from the branches. ## Claims ### Claim 1 An AC/DC converter comprising an input of the AC/DC converter, said converter being intended to receive an input three-phase AC voltage and to convert it into a DC voltage, the AC/DC converter comprising a transformer intended to receive the input three-phase AC voltage and to deliver two output three-phase AC voltages via two respective secondaries, the AC/DC converter comprising a set of two rectifying bridges, each secondary being connected to the input of one of the two rectifying bridges of the set, each rectifying bridge of the set of rectifying bridges comprising a first output connected to an output terminal of the AC/DC converter by an interphase inductor, the interphase inductor comprising a magnetic circuit comprising two branches that are substantially parallel and two windings, each winding of the two windings being wound about one branch selected from the two branches and being held away from the magnetic circuit at every point of the winding, wherein each winding is fastened to the one branch selected from the two branches solely by a set of at least one holding block made of a material having an A-scale Shore hardness lower than or equal to 50. ### Claim 2 (depends on 1) The AC/DC converter according to claim 1, wherein the set of at least one block comprises a plurality of blocks spaced apart along a longitudinal axis along which the branch extends longitudinally. ### Claim 3 (depends on 1) The AC/DC converter according to claim 1, wherein the material is an adhesive. ### Claim 4 (depends on 1) The AC/DC converter according to claim 1, wherein the transformer comprises a primary that is intended to receive the input three-phase AC voltage. ### Claim 5 (depends on 1) A process for manufacturing an AC/DC converter according to claim 1, comprising, for each winding of the two windings: winding in order to form the winding about the branch so that the winding is able to be held away from the magnetic circuit at every point of the winding, forming the set of at least one holding block fastened to the magnetic circuit, fastening the winding to the one branch selected from the two branches solely by the set of at least one holding block made of a material having an A-scale Shore hardness lower than or equal to 50, such that the winding is held away from the magnetic circuit at every point of the winding. ### Claim 6 (depends on 5) The manufacturing process according to claim 5, wherein the material is an adhesive. ### Claim 7 (depends on 5) The manufacturing process according to claim 5, comprising positioning the winding and the magnetic circuit in a relative position wherein the winding is located away from the magnetic circuit at every point of the winding, followed by applying adhesive between the winding and the branch and a step of polymerizing the adhesive so as to form the set of at least one holding block. ### Claim 8 (depends on 5) The manufacturing process according to claim 5, comprising injecting the material into a mould that surrounds the magnetic circuit and that defines at least one free volume wherein the set of at least one holding block is intended to be located, injecting the material being followed by a step of removing the mould followed by the winding step.