# US 2019/0244752 A1 · Coil block for wireless charging and method for manufacturing same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0244752 A1 - Document ID: US20190244752A1 - Status: Published application - Kind: A1 - Application number: 16/339,282 - Filed: 2017-09-08 - Published: 2019-08-08 - Earliest claimed: 2016-10-06 - Assignees: LG Innotek Co., Ltd. - Applicants: LG Innotek Co., Ltd. - Inventors: Yu Ri PARK; Young Kyu LEE; Sung Hyun LEEM - Web page: https://patentgrep.com/patent/US20190244752A1 ## CPC - H01F 27/2828: {Construction of conductive connections, of leads} - H01F 1/14791: {Fe-Si-Al based alloys, e.g. Sendust} - H01F 27/2871: {Pancake coils} - H01F 27/29: Terminals; Tapping arrangements {for signal inductances} - H01F 27/366: {made of ferromagnetic material} - H01F 38/14: Inductive couplings - H01F 41/04: for manufacturing coils {(coils for transformer or inductances H01F27/28)} - H01F 41/076: Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire - H01F 41/10: Connecting leads to windings (making electric connections in general H01R43/00) - H02J 7/02: for charging batteries from AC mains by converters - H02J 50/005: {Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices} - H02J 50/10: using inductive coupling - H05K 9/00: Screening of apparatus or components against electric or magnetic fields (devices for absorbing radiation from an antenna H01Q17/00) - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract The present invention relates to a coil block for wireless charging, a wireless charging device equipped with the corresponding coil block, and a method for manufacturing the same. A method for manufacturing a coil block for wireless charging according to an embodiment of the present invention may comprise the steps of: configuring a shielding block comprising two lead holes to be penetrated by two lead wires configured on a pattern coil; arranging the pattern coil on a surface of the shielding block by causing respective lead wires to penetrate the corresponding lead holes; and attaching an adhesive member to another surface of the shielding block. Therefore, the present invention can advantageously provide a coil block that can be manufactured at a low cost and has excellent durability, and a wireless charging device equipped with the corresponding coil block. ## Claims ### Claim at position 1 1-19. (canceled) ### Claim 20 A method of manufacturing a coil block for wireless charging, the method comprising: configuring a shielding block including two lead holes for allowing two lead lines configured on a pattern coil to penetrate the lead holes; allowing the lead lines to penetrate the corresponding lead holes, respectively, to dispose the pattern coil on one surface of the shielding block; and attaching an adhesive member to a remaining surface of the shielding block, wherein an external support wall is formed on one surface of the shielding block along an external circumference of the shielding block, the two lead lines are guided to the two lead holes through an opening configured in one side of the external support wall, and a protrusion including the two lead holes is formed on the shielding block on an extension line of the opening. ### Claim 21 (depends on 20) The method of claim 20, further comprising dipping-processing a portion of an end of the two penetrating lead lines. ### Claim 22 (depends on 21) The method of claim 21, further comprising bending the portion of the end of the two penetrating lead line prior to the dipping-processing. ### Claim 23 (depends on 20) The method of claim 20, wherein the shielding block includes a center hole, an internal support wall is formed on the one surface of the shielding block along the center hole, and the pattern coil is disposed between the external support wall and the internal support wall. ### Claim 24 (depends on 20) The method of claim 20, wherein the shielding block is a sendust block. ### Claim 25 (depends on 24) The method of claim 24, wherein the sendust block is generated by injection-molding molten resin generated by mixing insulated flake powder and insulating resin powder and then performing heat treatment on a resultant mixture. ### Claim 26 (depends on 20) The method of claim 20, wherein the shielding block is a ferrite-based material. ### Claim 27 (depends on 20) The method of claim 20, wherein the pattern coil includes an even number of coil layers and the lead lines are formed at the lowermost layer and the uppermost layer, respectively. ### Claim 28 A coil block for wireless charging comprising: a shielding block including two lead holes; a pattern coil disposed on one surface of the shielding block and including two lead lines penetrating the two lead holes; and an adhesive member attached to a remaining surface of the shielding block, wherein the shielding block includes: an external support wall formed on the one surface of the shielding block along an external circumference of the shielding block; an opening formed in one side of the external support wall and configured to guide the two lead lines to the two lead holes; and a protrusion including the two lead holes formed therein on an extension line of the opening. ### Claim 29 (depends on 28) The coil block of claim 28, wherein a portion of an end of the two penetrating lead lines is bent and the portion of the end of the two bent lead lines is subjected to dipping-processing. ### Claim 30 (depends on 28) The coil block of claim 28, wherein the shielding block further includes: a center hole; and an internal support wall formed on the one surface of the shielding block along the center hole; and wherein the pattern coil is disposed between the external support wall and the internal support wall. ### Claim 31 (depends on 28) The coil block of claim 28, wherein the shielding block is a sendust block generated by injection-molding molten resin generated by mixing insulated flake powder and insulating resin powder and then performing heat treatment on a resultant mixture. ### Claim 32 (depends on 28) The coil block of claim 28, wherein the shielding block is a ferrite-based material. ### Claim 33 (depends on 28) The coil block of claim 28, wherein the pattern coil includes an even number of coil layers and the lead lines are formed at the lowermost layer and the uppermost layer, respectively. ### Claim 34 A wireless power transmission apparatus comprising: a body; a transmission coil block installed in the body and configured to wirelessly transmit power; a transmitter control circuit board connected to the transmission coil block and configured to control power transmission; and a power supply configured to supply power to the transmitter control circuit board, wherein the transmission coil block includes: a shielding block including two lead holes; a pattern coil disposed on one surface of the shielding block and including two lead lines penetrating the two lead holes; and an adhesive member attached to a remaining surface of the shielding block; and wherein the shielding block includes: an external support wall formed on the one surface of the shielding block along an external circumference of the shielding block; an opening formed in one side of the external support wall and configured to guide the two lead lines to the two lead holes; and a protrusion including the two lead holes formed therein on an extension line of the opening. ### Claim 35 (depends on 34) The wireless power transmission apparatus of claim 34, wherein a portion of an end of the two penetrating lead lines is bent and the portion of the end of the two bent lead lines is subjected to dipping-processing. ### Claim 36 (depends on 34) The wireless power transmission apparatus of claim 34, wherein the shielding block further includes: a center hole; and an internal support wall formed on the one surface of the shielding block along the center hole; and wherein the pattern coil is disposed between the external support wall and the internal support wall. ### Claim 37 (depends on 36) The wireless power transmission apparatus of claim 36, wherein the shielding block is a sendust block generated by injection-molding molten resin generated by mixing insulated flake powder and insulating resin powder and then performing heat treatment on a resultant mixture. ### Claim 38 (depends on 34) The wireless power transmission apparatus of claim 34, wherein the pattern coil includes an even number of coil layers and the lead lines are formed at the lowermost layer and the uppermost layer, respectively. ### Claim 39 (depends on 34) The wireless power transmission apparatus of claim 34, wherein the shielding block is a ferrite-based material.