# US 2020/0403448 A1 · Induction charging device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0403448 A1 - Document ID: US20200403448A1 - Status: Published application - Kind: A1 - Application number: 17/014,669 - Filed: 2020-09-08 - Published: 2020-12-24 - Earliest claimed: 2018-03-08 - Assignees: Mahle International GmbH - Applicants: MAHLE International GmbH - Inventors: Christopher Laemmle - Web page: https://patentgrep.com/patent/US20200403448A1 ## CPC - H02J 50/10: using inductive coupling - B60L 53/302: Cooling of charging equipment - H02J 50/70: involving the reduction of electric, magnetic or electromagnetic leakage fields - B60L 53/12: Inductive energy transfer - H02J 7/70: characterised by the mechanical construction - 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 - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - 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 An induction charging device for an electrically operated motor vehicle includes a charging assembly having a charging coil, and a temperature-control assembly having a fluid pipe. The charging coil can be inductively coupled to a primary coil, such that a battery in the motor vehicle can be inductively charged. The charging assembly has a ferrite plate for directing the electromagnetic alternating field, which is established between the charging coil and the fluid pipe, such that waste heat from the ferrite plate and the charging coil can be transmitted to the fluid in the fluid pipe. The fluid pipe is formed by a shell-type metal shielding plate for shielding electromagnetic field emissions and a shell-type lower shell heat-conductingly in contact with the ferrite plate. The metal shielding plate and the lower shell are secured on one another in a fluid-tight manner and spaced apart from one another with a stiffening insert. ## Claims ### Claim 1 An induction charging device for a partially or fully electrically operated motor vehicle, the induction charging device comprising: at least one charging assembly comprising a charging coil; and a temperature-control assembly comprising a fluid pipe, through which a fluid can flow, wherein the charging coil of the charging assembly can be inductively coupled to a primary coil, such that a battery can be inductively charged in the motor vehicle, wherein the charging assembly has a ferrite plate, which is secured between the charging coil and the fluid pipe, for directing the electromagnetic alternating field, wherein, in an installed state of the induction charging device, the fluid pipe of the temperature-control assembly is heat-conductingly secured to the ferrite plate on the vehicle side, such that the waste heat from the ferrite plate and from the charging coil can be transmitted to the fluid in the fluid pipe of the temperature-control assembly, wherein the fluid pipe of the temperature-control assembly is formed by a metal shielding plate for shielding electromagnetic field emissions, and a shell-type lower shell, which is heat-conductingly in contact with the ferrite plate, wherein the metal shielding plate and the lower shell are secured to one another in a fluid-tight manner and spaced apart from one another with a separate stiffening insert, wherein the stiffening insert is in contact with the lower shell on one side and with the metal shielding plate on the other side, wherein the stiffening insert secures the lower shell and the metal shielding plate and thus the metal shielding plate and the ferrite plate at a defined distance from one another, wherein the fluid pipe of the temperature-control assembly is set up in a modular manner, wherein the lower shell and the metal shielding plate are designed independently of the required defined distance, and wherein the stiffening insert is designed dependently on the required defined distance, and wherein a gap between the metal shielding plate and the lower shell resulting from the adapted thickness of the stiffening insert, is compensated when joining the metal shielding plate to the lower shell. ### Claim 2 (depends on 1) The induction charging device according to claim 1, wherein the stiffening insert forms several turbulence ducts in the fluid pipe of the temperature-control assembly. ### Claim 3 (depends on 1) The induction charging device according to claim 1, wherein the stiffening insert is formed from an electrical insulator, typically from plastic, or wherein the stiffening insert is formed from metal, typically from aluminum. ### Claim 4 (depends on 1) The induction charging device according to claim 1, wherein the lower shell is formed from an electrical insulator, typically from plastic. ### Claim 5 (depends on 1) The induction charging device according to claim 1, wherein the metal shielding plate is formed from a conductive material, typically from metal. ### Claim 6 (depends on 1) The induction charging device according to claim 1, wherein the ferrite plate of the charging assembly is adhered, cast, pressed, or screwed to the lower shell of the fluid duct. ### Claim 7 (depends on 1) The induction charging device according to claim 1, wherein a heat-conducting layer, typically a heat-conducting casting compound, a heat-conducting paste, or a heat-conducting insert, is arranged between the lower shell and the ferrite plate. ### Claim 8 (depends on 1) The induction charging device according to claim 1, wherein the metal shield plate is adhered, welded, clamped, or screwed to the lower shell. ### Claim 9 (depends on 1) The induction charging device according to claim 1, wherein the fluid can flow through the fluid pipe of the temperature-control assembly from a fluid inlet to a fluid outlet, and wherein the temperature control assembly can be fluidically connected to a vehicle cooling system via the fluid inlet and via the fluid outlet of the fluid pipe.