# US 11,451,074 B2 · Wireless charging method and apparatus thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,451,074 B2 - Document ID: US11451074B2 - Status: Granted - Kind: B2 - Application number: 16/880,260 - Filed: 2020-05-21 - Published: 2020-09-03 - Granted: 2022-09-20 - Earliest claimed: 2015-08-13 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Kihyun Kim; Kyungha Koo; Wooram Lee; Changhyung Lee; Jihye Kim; Jihong Kim; Yunjeong Noh; Seho Park; Kumjong Sun; Ju-Hyang Lee; Mincheol Ha; Sangmoo Hwangbo - Web page: https://patentgrep.com/patent/US11451074B2 ## CPC - H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices - H02J 7/60: including safety or protection arrangements - H02J 7/65: against overtemperature - H02J 7/70: characterised by the mechanical construction - 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 - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - Y02T 90/12: Electric charging stations - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An electronic device is provided. The electronic device includes a housing, a wireless charging coil disposed inside the housing, a fan disposed inside the housing and in proximity to the coil, a temperature sensor disposed inside the housing and in proximity to the coil, a wireless charging circuit having the coil and configured to transmit power wirelessly to an external device via the coil, and a control circuit electrically connected to the fan, the temperature sensor, and the wireless charging circuit. The control circuit may be configured to receive a signal from the external device, receive data related to a temperature of the coil from the temperature sensor, and control the fan at least partially on the basis of at least one of the signal and the data. ## Claims ### Claim 1 An electronic device comprising: a housing including an upper cover and a lower cover; a bracket disposed between the upper cover and the lower cover; a wireless charging coil positioned between the bracket and the upper cover; a heat radiation member disposed between the wireless charging coil and the bracket; an air circulation member disposed under the bracket; a printed board assembly (PBA) disposed under the air circulation member; and a shield member disposed between the wireless charging coil and the heat radiation member, wherein the PBA includes a control circuit electronically connected to the wireless charging coil and the air circulation member, and wherein the control circuit is configured to control the air circulation member to generate air flow. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the control circuit is further configured to: receive, from an external device, a signal for controlling the electronic device; and control an operation of the electronic device based on the received signal. ### Claim 3 (depends on 2) The electronic device of claim 2, wherein the control circuit is further configured to control a rotation speed of the air circulation member based on the received signal. ### Claim 4 (depends on 2) The electronic device of claim 2, wherein the control circuit is further configured to, based on the received signal, control the air circulation member to start or stop an operation of the air circulation member. ### Claim 5 (depends on 1) The electronic device of claim 1, wherein the upper cover of the housing comprises at least one rubber pad. ### Claim 6 (depends on 5) The electronic device of claim 5, wherein the at least one rubber pad comprises a pad shape on which an external device is placeable. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein the bracket includes one or more duct structures for air flow. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein the lower cover of the housing includes one or more holes for emitting air inside the housing. ### Claim 9 (depends on 8) The electronic device of claim 8, wherein the one or more holes include a first hole and a second hole, wherein the first hole is disposed at one side of the lower cover for air inflow, and wherein the second hole is disposed at another side of the lower cover opposite to the one side of the lower cover for emitting the air. ### Claim 10 (depends on 1) The electronic device of claim 1, further comprising: a temperature sensor disposed in the housing, wherein the control circuit is further configured to control the air circulation member based on a temperature inside the electronic device sensed by the temperature sensor. ### Claim 11 (depends on 1) The electronic device of claim 1, wherein the air circulation member comprises a fan. ### Claim 12 (depends on 1) The electronic device of claim 1, wherein the wireless charging coil and the air circulation member are disposed in parallel to each other with a first gap there between, wherein the PBA and the air circulation member are disposed in parallel to each other with a second gap there between, and wherein the first gap and the second gap provide a passage through for air circulation. ### Claim 13 (depends on 1) The electronic device of claim 1, wherein the wireless charging coil comprises a charging coil member, and wherein the charging coil member includes a heat radiation member and a charging coil. ### Claim 14 (depends on 13) The electronic device of claim 13, wherein the charging coil member is disposed on the bracket. ### Claim 15 A wireless charging pad device comprising: a housing including an upper cover and a lower cover, the upper cover having a surface on which an external device to be charged can be placed; a bracket disposed between the upper cover and the lower cover; a wireless charging coil disposed between the bracket and the upper cover; a heat radiation member disposed between the wireless charging coil and the bracket and configured to radiate heat generated from the wireless charging coil; a printed board assembly (PBA) disposed between the bracket and the lower cover and configured to control the wireless charging coil to wirelessly transmit power to the external device placed on the upper cover; an air circulation member configured to generate air flow inside the housing; and a shield member disposed between the wireless charging coil and the heat radiation member. ### Claim 16 (depends on 15) The wireless charging pad device of claim 15, wherein the air circulation member comprises a fan, and wherein the PBA further comprises a control circuit configured to control a rotation speed of the fan. ### Claim 17 (depends on 16) The wireless charging pad device of claim 16, wherein the control circuit is configured to, based on a received signal, control start or stop operations of the fan. ### Claim 18 (depends on 15) The wireless charging pad device of claim 15, wherein the upper cover of the housing comprises at least one rubber pad on which the external device is placeable. ### Claim 19 (depends on 15) The wireless charging pad device of claim 15, wherein the housing includes a plurality of vent holes for emitting heat inside the housing. ### Claim 20 (depends on 15) The wireless charging pad device of claim 15, further comprising: a temperature sensor disposed in the housing for sensing a temperature of the wireless charging pad device. ### Claim 21 (depends on 15) The wireless charging pad device of claim 15, wherein the air circulation member is further configured to generate the air flow between the heat radiation member and the PBA.