# US 10,245,963 B2 · Air cooled wireless charging pad > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,963 B2 - Document ID: US10245963B2 - Status: Granted - Kind: B2 - Application number: 15/368,767 - Filed: 2016-12-05 - Published: 2018-06-07 - Granted: 2019-04-02 - Earliest claimed: 2016-12-05 - Assignees: Lear Corporation - Applicants: Lear Corporation - Inventors: Ajmal Imran Ansari; Richard J. Hampo; David A. Hein - Web page: https://patentgrep.com/patent/US10245963B2 ## CPC - H01F 27/02: Casings - B60L 3/00: Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption (methods or circuit arrangements for monitoring or controlling batteries or fuel cells B60L58/00) - B60L 53/126: Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver - B60L 53/302: Cooling of charging equipment - H01F 38/14: Inductive couplings - H01F 27/025: {Constructional details relating to cooling} - H01F 27/26: Fastening parts of the core together; Fastening or mounting the core on casing or support (on coil H01F27/30) - 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 - Y02T 90/14: Plug-in electric vehicles - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A charging pad includes a housing, an interface layer, a magnetics assembly, and an electronics assembly. The housing has a magnetics assembly housing part and an electronics assembly housing part. The interface layer is within the housing. The magnetics assembly is arranged below the interface layer within the magnetics assembly housing part and the electronics assembly is arranged above the interface layer within the electronics assembly housing part. ## Claims ### Claim 1 A charging pad comprising: a housing having a magnetics assembly housing part and an electronics assembly housing part; an interface layer within the housing, the interface layer having a top side and a bottom side, wherein the interface layer includes a thermal insulator sub-layer and an electromagnetic shielding sub-layer, the thermal insulator sub-layer forms one of the top side and the bottom side of the interface layer and the electromagnetic shielding sub-layer forms an other one of the top side and bottom side of the interface layer; wherein the magnetics assembly housing part includes a floor portion spaced apart from the bottom side of the interface layer; wherein the electronics assembly housing part includes a ceiling portion spaced apart from the top side of the interface layer; a magnetics assembly arranged below the bottom side of the interface layer within the magnetics assembly housing part and attached to the floor portion of the magnetics assembly housing part; and an electronics assembly spaced apart from and arranged above the top side of the interface layer within the electronics assembly housing part and attached to the ceiling portion of the electronics assembly housing part, the electronics assembly including a printed circuit board having electric and electronic components arranged thereon, the printed circuit board being attached to the ceiling portion of the electronics assembly housing part. ### Claim 2 (depends on 1) The charging pad of claim 1 wherein: the floor portion of the magnetics assembly housing part is a thermal path for the magnetics assembly as heat generated by the magnetics assembly thermally conducts through the floor portion of the magnetics assembly housing part into an external environment of the charging pad. ### Claim 3 (depends on 1) The charging pad of claim 1 wherein: the magnetics assembly includes an induction coil arrangement and ferrite tiles, the ferrite tiles placed over coil windings of the induction coil arrangement; and the floor portion of the magnetics assembly housing part includes tracks for receiving the coil windings of the induction coil arrangement, wherein the tracks extend in a step-like fashion away from the floor portion of the magnetics assembly housing part. ### Claim 4 (depends on 1) The charging pad of claim 1 further comprising: a potting material filling in space between components of the magnetics assembly and the floor portion of the magnetics assembly housing part, the potting material mechanically holding the components of the magnetics assembly, electrically isolating the components of the magnetics assembly, and thermally conducting heat generated by the components of the magnetics assembly to the floor portion of the magnetics assembly housing part. ### Claim 5 (depends on 1) The charging pad of claim 1 wherein: the ceiling portion of the electronics assembly housing part is a thermal path for the electronics assembly as heat generated by the electronics assembly thermally conducts through the ceiling portion of the electronics assembly housing part into an external environment of the charging pad. ### Claim 6 (depends on 1) The charging pad of claim 1 wherein: the electronics assembly further includes a thermal interface layer, the thermal interface layer being arranged between the printed circuit board and the ceiling portion of the electronics assembly housing part. ### Claim 7 (depends on 1) The charging pad of claim 1 wherein: the magnetics assembly housing part is of a thermally conductive plastic. ### Claim 8 (depends on 7) The charging pad of claim 7 wherein: the electronics assembly housing part is of at least one of thermally conductive plastic and metal. ### Claim 9 (depends on 1) The charging pad of claim 1 wherein: the magnetics assembly is configured to wirelessly receive power from a charging source and the electronics assembly is configured to convert the power wirelessly received by the magnetics assembly into electrical power. ### Claim 10 A charging pad for an electric vehicle, comprising: a magnetics assembly to wirelessly receive power from a charging source; an electronics assembly to convert the power wirelessly received by the magnetics assembly into electrical power for charging the electric vehicle; an interface layer separating the magnetics assembly and the electronics assembly, the interface layer includes a thermal insulator sub-layer and an electromagnetic shielding sub-layer; a magnetics assembly housing part having a floor portion spaced apart from the interface layer; an electronics assembly housing part having a ceiling portion spaced apart from the interface layer; wherein the magnetics assembly is arranged below the bottom side of the interface layer within the magnetics assembly housing part and is attached to the floor portion of the magnetics assembly housing part whereby heat generated by the magnetic assembly thermally conducts from the floor portion of the magnetics assembly housing part into an external environment; and wherein the electronics assembly is spaced apart from and arranged above the top side of the interface layer within the electronics assembly housing part and is attached to the ceiling portion of the electronics assembly housing part whereby heat generated by the electronics assembly thermally conducts from the ceiling portion of the electronics assembly housing part into the external environment, the electronics assembly including a printed circuit board having electric and electronic components arranged thereon, the printed circuit board being attached to the ceiling portion of the electronics assembly housing part. ### Claim 11 (depends on 10) The charging pad of claim 10 wherein: the magnetics assembly includes an induction coil arrangement and ferrite tiles, the ferrite tiles placed over coil windings of the induction coil arrangement; and the floor portion of the magnetics assembly housing part includes tracks for receiving the coil windings of the induction coil arrangement. ### Claim 12 (depends on 10) The charging pad of claim 10 further comprising: a potting material filling in space between components of the magnetics assembly and the floor portion of the magnetics assembly housing part, the potting material mechanically holding the components of the magnetics assembly, electrically isolating the components of the magnetics assembly, and thermally conducting heat generated by the components of the magnetics assembly to the floor portion of the magnetics assembly housing part. ### Claim 13 (depends on 10) The charging pad of claim 10 wherein: the electronics assembly includes a printed circuit board having electric and electronic components arranged thereon and a thermal interface layer, the thermal interface layer being arranged between the printed circuit board and the ceiling portion of the electronics assembly housing part. ### Claim 14 (depends on 10) The charging pad of claim 10 wherein: the magnetics assembly housing part is of a thermally conductive plastic. ### Claim 15 (depends on 10) The charging pad of claim 10 wherein: the electronics assembly housing part is of at least one of thermally conductive plastic and metal.