# US 11,305,661 B2 · Modular charging station for electric automobiles > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,305,661 B2 - Document ID: US11305661B2 - Status: Granted - Kind: B2 - Application number: 16/526,187 - Filed: 2019-07-30 - Published: 2020-02-06 - Granted: 2022-04-19 - Earliest claimed: 2018-07-31 - Assignees: Dr. Ing. h.c. F. Porsche Aktiengesellschaft; ads-tec Energy GmbH - Applicants: Dr. Ing. h.c. F. Porsche Aktiengesellschaft; ads-tec GmbH - Inventors: Raoul Heyne; Florian Joslowski; Michael Kiefer; Thomas Speidel; Ali Natour; Matthias Bohner - Web page: https://patentgrep.com/patent/US11305661B2 ## CPC - B60L 53/31: Charging columns specially adapted for electric vehicles - B60L 53/14: Conductive energy transfer - B60L 53/53: Batteries - B60L 53/67: Controlling two or more charging stations - H02J 1/08: Three-wire DC power distribution systems; Systems having more than three wires - H02J 1/102: being switching converters (H02J1/108, H02J1/12 take precedence) - H02J 7/02: for charging batteries from AC mains by converters - H02J 7/50: acting upon multiple batteries simultaneously or sequentially - H02J 7/751: {concerning the insertion or the connection of the batteries} - H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] - 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 - 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 - 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 A charging station for electric automobiles having a variable number of power electronics modules and a variable number of charging connections electrically connected to the power electronics modules. ## Claims ### Claim 1 A charging station for electric automobiles comprising: a power connection to a power grid; a variable number of at least two power electronics modules for converting alternating current (AC) grid power received from the power grid through the power connection to operational direct current (DC) power for a variable number of at least two charging columns that are external to the charging station; a variable number of at least two charging connection plugs that separately and respectively electrically connect the variable number of the at least two power electronics modules to the variable number of the at least two charging columns that are external to the charging station and convert the operational power to charging power for charging the electric automobiles; and a first set of power switches electrically connected between the at least two power electronics modules; and a second set of power switches electrically connected between at least one of the at least two power electronics modules and an external charging battery separate from the electric automobiles, wherein: in a first state, the first set of power switches and the second set of power switches are configured to connect the at least two power electronics modules and the external charging battery together such that power is shared between the at least two charging columns and the external charging battery, and in a second state, the first set of power switches and the second set of power switches are configured to connect the at least two power electronics modules together and electrically isolate the and the external charging battery from the at least two power electronics modules such that power is shared between the at least two charging columns separate from the external charging battery, wherein the charging station is an intermediary retrofitted device that interfaces the variable number of the at least two charging columns that are external to the charging station to the power grid through the separate connection plugs. ### Claim 2 (depends on 1) The charging station as claimed in claim 1, comprising: exactly one power electronics module, and exactly one charging connection. ### Claim 3 (depends on 1) The charging station as claimed in claim 1, comprising: exactly two power electronics modules, and exactly one charging connection. ### Claim 4 (depends on 1) The charging station as claimed in claim 1, comprising: exactly two power electronics modules, and exactly two charging connections. ### Claim 5 (depends on 1) The charging station as claimed in claim 1, comprising: exactly one power electronics module, exactly one charging connection, and one battery string electrically connected to the power electronics module and to the charging connection. ### Claim 6 (depends on 1) The charging station as claimed in claim 1, comprising: exactly two power electronics modules, exactly one charging connection, and one battery string electrically connected to the power electronics modules and to the charging connection. ### Claim 7 (depends on 1) The charging station as claimed in claim 1, comprising: exactly two power electronics modules, exactly two charging connections, and one battery string electrically connected to the power electronics modules and to the charging connections. ### Claim 8 (depends on 1) The charging station as claimed in claim 1, comprising: exactly one power electronics module, exactly one charging connection, and two battery strings electrically connected to the power electronics module and to the charging connection. ### Claim 9 (depends on 1) The charging station as claimed in claim 1, comprising: exactly two power electronics modules, exactly one charging connection, and two battery strings electrically connected to the power electronics modules and to the charging connection. ### Claim 10 (depends on 1) The charging station as claimed in claim 1, comprising: exactly two power electronics modules, exactly two charging connections, and two battery strings electrically connected to the power electronics modules and to the charging connections.