# US 9,520,227 B2 · Apparatus for contactless transmission of electrical energy between a wall and a door leaf/window sash fastened to said wall > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,520,227 B2 - Document ID: US9520227B2 - Status: Granted - Kind: B2 - Application number: 14/119,446 - Filed: 2012-05-03 - Published: 2014-03-20 - Granted: 2016-12-13 - Earliest claimed: 2011-05-24 - Assignees: Dr. Hahn GmbH & Co. KG - Applicants: Tibor Herglotz; Ingo Steinfeld - Inventors: Tibor Herglotz; Ingo Steinfeld - Web page: https://patentgrep.com/patent/US9520227B2 ## CPC - H01F 38/14: Inductive couplings - E05D 11/0081: {for transmitting energy, e.g. electrical cable routing} - E05D 2003/025: {having three knuckles} - E05Y 2900/132: Doors - E05Y 2900/148: Windows - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00) - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract An apparatus for a contactless transmission of electrical energy between a wall and a door leaf/window sash fastened to the wall in an articulated fashion via hinges about a hinge axis includes a primary coil configured to be fastened to the wall, a secondary coil fastened to the door leaf/window sash, and a hinge bolt as a magnetic flux conduction body between the primary coil and the secondary coil. The hinge bolt comprises at least one flux element provided as a prefabricated structural component and at least one bearing piece comprising a mating frontal side. The at least one flux element comprises at least one frontal side. The at least one frontal side of the at least one flux element braces against the mating frontal side of the at least one bearing piece. ## Claims ### Claim 1 An apparatus for a contactless transmission of electrical energy between a wall and a door leaf/window sash fastened to the wall in an articulated fashion via hinges about a hinge axis, the apparatus comprising: a primary coil configured to be fastened to the wall; a secondary coil configured to be fastened to the door leaf/window sash; a hinge bolt configurable as a magnetic flux conduction body between the primary coil and the secondary coil, the hinge bolt comprising: at least one flux element provided as a prefabricated structural component, the at least one flux element comprising at least one frontal side; and at least one bearing piece comprising a mating frontal side, wherein, the at least one frontal side of the at least one flux element is configured to brace against the mating frontal side of the at least one bearing piece; and a tensile element which is configured to pass through the at least one flux element and to be connected to the at least one bearing piece; wherein, the tensile element is screwed to the at least one bearing piece, the at least one bearing piece is provided as a first bearing piece and a second bearing piece, the first bearing piece and the second bearing piece each being an end piece, and the tensile element is screwed to the first bearing piece and to the second bearing piece. ### Claim 2 (depends on 1) The apparatus as recited in claim 1, wherein the at least one bearing piece is manufactured of a material with a low permeability. ### Claim 3 (depends on 1) The apparatus as recited in claim 1, wherein the first bearing piece and the second bearing piece each comprise a wrench surface configured to have a driving tool be placed thereon. ### Claim 4 (depends on 1) The apparatus as recited in claim 1, further comprising a center piece comprising a first mating frontal side and a second mating frontal side which are oriented away from each other, wherein the at least one flux element is provided as a first flux element and a second flux element, the first flux element and the second flux element being disposed at a distance relative to each other and being spaced via the center piece. ### Claim 5 (depends on 4) The apparatus as recited in claim 4, wherein the center piece has a shock-absorbing property. ### Claim 6 (depends on 4) The apparatus as recited in claim 4, wherein the center piece is manufactured of a material with a low permeability. ### Claim 7 (depends on 4) The apparatus as recited in claim 4, wherein the center piece further comprises centering areas, and the at least one flux element further comprises flux element centering areas, each of the centering areas being configured to mate with one respective flux element centering area. ### Claim 8 (depends on 1) The apparatus as recited in claim 1, wherein the at least one flux element further comprises at least one threaded extension or threaded bore on the at least one frontal side, and the at least one bearing piece braced against the at least one flux element further comprises a threaded bore or a threaded extension on the mating frontal side which is configured to compliment the respective at least one threaded extension or threaded bore so that the at least one flux element can be screwed to the at least one bearing piece. ### Claim 9 (depends on 8) The apparatus as recited in claim 8, wherein the at least one bearing piece comprises a wrench surface configured to have a driving tool be placed thereon. ### Claim 10 (depends on 8) The apparatus as recited in claim 8, further comprising a center piece comprising a first mating frontal side and a second mating frontal side which are oriented away from each other, each of the first mating frontal side and the second mating frontal side comprising a threaded bore or a threaded extension, wherein, the at least one flux element is provided as a first flux element and a second flux element, each of the first flux element and the second flux element comprising a respective threaded bore or threaded extension, the threaded bore or threaded extension of the respective first mating frontal side and second mating frontal side being configured to compliment the respective threaded bore or threaded extension of the respective first flux element and second flux element so that the first flux element and the second flux element can be screwed to the center piece. ### Claim 11 (depends on 10) The apparatus as recited in claim 10, wherein the center piece has a shock-absorbing property. ### Claim 12 (depends on 10) The apparatus as recited in claim 10, wherein the at least one bearing piece comprises a bearing piece centering area, and the at least one flux element comprises a flux element centering area, the bearing piece centering area and the flux element centering area each being configured to mate with each other. ### Claim 13 (depends on 12) The apparatus as recited in claim 12, wherein the center piece further comprises centering areas, each of the centering areas being configured to mate with one respective flux element centering area. ### Claim 14 (depends on 8) The apparatus as recited in claim 8, wherein the at least one bearing piece is manufactured of a material with a low permeability. ### Claim 15 (depends on 8) The apparatus as recited in claim 8, wherein the center piece is manufactured of a material with a low permeability. ### Claim 16 A hinge bolt which can be configured to serve as a magnetic flux conduction body between a primary coil and a secondary coil, the hinge bolt comprising: at least one flux element provided as a prefabricated structural component, the at least one flux element comprising at least one frontal side; at least one bearing piece comprising a mating frontal side; and a tensile element which is configured to pass through the at least one flux element and to be connected to the at least one bearing piece, wherein, the at least one frontal side of the at least one flux element is configured to brace against the mating frontal side of the at least one bearing piece, the tensile element is screwed to the at least one bearing piece, the at least one bearing piece is provided as a first bearing piece and a second bearing piece, the first bearing piece and the second bearing piece each being an end piece, and the tensile element is screwed to the first bearing piece and to the second bearing piece. ### Claim 17 An apparatus for a contactless transmission of electrical energy between a wall and a door leaf/window sash fastened to the wall in an articulated fashion via hinges about a hinge axis, the apparatus comprising: a primary coil configured to be fastened to the wall; a secondary coil configured to be fastened to the door leaf/window sash; a hinge bolt configurable as a magnetic flux conduction body between the primary coil and the secondary coil, the hinge bolt comprising: at least one flux element provided as a prefabricated structural component, the at least one flux element comprising at least one frontal side; and at least one bearing piece comprising a mating frontal side, wherein, the at least one frontal side of the at least one flux element is configured to brace against the mating frontal side of the at least one bearing piece; and a center piece comprising a first mating frontal side and a second mating frontal side which are oriented away from each other, wherein, the at least one flux element is provided as a first flux element and a second flux element, the first flux element and the second flux element being disposed at a distance relative to each other and being spaced via the center piece, and the center piece has a shock-absorbing property. ### Claim 18 (depends on 17) The apparatus as recited in claim 17, wherein the at least one bearing piece is manufactured of a material with a low permeability. ### Claim 19 (depends on 17) The apparatus as recited in claim 17, further comprising a tensile element which is configured to pass through the at least one flux element and to be connected to the at least one bearing piece. ### Claim 20 (depends on 19) The apparatus as recited in claim 19, wherein the tensile element is screwed to the at least one bearing piece. ### Claim 21 (depends on 20) The apparatus as recited in claim 20, wherein the at least one bearing piece is provided as a first bearing piece and a second bearing piece, the first bearing piece and the second bearing piece each being an end piece, and the tensile element is screwed to the first bearing piece and to the second bearing piece. ### Claim 22 (depends on 21) The apparatus as recited in claim 21, wherein the first bearing piece and the second bearing piece each comprise a wrench surface configured to have a driving tool be placed thereon. ### Claim 23 (depends on 17) The apparatus as recited in claim 17, wherein the center piece is manufactured of a material with a low permeability. ### Claim 24 (depends on 17) The apparatus as recited in claim 17, wherein the center piece further comprises centering areas, and the at least one flux element further comprises flux element centering areas, each of the centering areas being configured to mate with one respective flux element centering area. ### Claim 25 (depends on 17) The apparatus as recited in claim 17, wherein the at least one flux element further comprises at least one threaded extension or threaded bore on the at least one frontal side, and the at least one bearing piece braced against the at least one flux element further comprises a threaded bore or a threaded extension on the mating frontal side which is configured to compliment the respective at least one threaded extension or threaded bore so that the at least one flux element can be screwed to the at least one bearing piece. ### Claim 26 (depends on 25) The apparatus as recited in claim 25, wherein the at least one bearing piece comprises a wrench surface configured to have a driving tool be placed thereon. ### Claim 27 (depends on 25) The apparatus as recited in claim 25, further comprising a center piece comprising a first mating frontal side and a second mating frontal side which are oriented away from each other, each of the first mating frontal side and the second mating frontal side comprising a threaded bore or a threaded extension, wherein, the at least one flux element is provided as a first flux element and a second flux element, each of the first flux element and the second flux element comprising a respective threaded bore or threaded extension, the threaded bore or threaded extension of the respective first mating frontal side and second mating frontal side being configured to compliment the respective threaded bore or threaded extension of the respective first flux element and second flux element so that the first flux element and the second flux element can be screwed to the center piece. ### Claim 28 (depends on 27) The apparatus as recited in claim 27, wherein the center piece has a shock-absorbing property. ### Claim 29 (depends on 27) The apparatus as recited in claim 27, wherein the at least one bearing piece comprises a bearing piece centering area, and the at least one flux element comprises a flux element centering area, the bearing piece centering area and the flux element centering area each being configured to mate with each other. ### Claim 30 (depends on 29) The apparatus as recited in claim 29, wherein the center piece further comprises centering areas, each of the centering areas being configured to mate with one respective flux element centering area. ### Claim 31 (depends on 25) The apparatus as recited in claim 25, wherein the at least one bearing piece is manufactured of a material with a low permeability. ### Claim 32 (depends on 25) The apparatus as recited in claim 25, wherein the center piece is manufactured of a material with a low permeability. ### Claim 33 A hinge bolt which can be configured to serve as a magnetic flux conduction body between a primary coil and a secondary coil, the hinge bolt comprising: at least one flux element provided as a prefabricated structural component, the at least one flux element comprising at least one frontal side; at least one bearing piece comprising a mating frontal side; and a center piece comprising a first mating frontal side and a second mating frontal side which are oriented away from each other, wherein, the at least one frontal side of the at least one flux element is configured to brace against the mating frontal side of the at least one bearing piece, the at least one flux element is provided as a first flux element and a second flux element, the first flux element and the second flux element being disposed at a distance relative to each other and being spaced via the center piece, and the center piece has a shock-absorbing property.