# US 9,438,040 B2 · Energy supply system and conductor loop enclosure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,438,040 B2 - Document ID: US9438040B2 - Status: Granted - Kind: B2 - Application number: 14/058,843 - Filed: 2013-10-21 - Published: 2015-04-23 - Granted: 2016-09-06 - Earliest claimed: 2013-10-21 - Assignees: Sonnen GmbH - Applicants: sonnen GmbH - Inventors: Torsten Stiefenhofer - Web page: https://patentgrep.com/patent/US9438040B2 ## CPC - H02J 3/32: using batteries or super capacitors with converting means - H02G 3/088: {Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets} - H02G 3/10: for surface mounting on a wall - H02J 7/35: with light sensitive cells - H02J 7/865: {Battery or charger load switching, e.g. concurrent charging and load supply (H02J7/50 takes precedence)} - H02J 2105/12: supplying households or buildings - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES ## Abstract An energy supply system for supplying electrical energy to a building, comprising a grid connector unit for providing a connection to an external power grid, a load connector unit for connecting to a building power grid, a conductor loop for electrically connecting the grid connector unit to the load connector unit, an energy storage device connected to the conductor loop, and a disconnector placed in the conductor loop for, upon activation of the disconnector, disconnecting the electrical connection between the grid connector unit and the load connector unit, whereby the energy storage device is connected to the conductor loop via a discharging line such that electrical energy stored in the energy storage device may be discharged through part of the conductor loop to the load connector unit when the disconnector is activated. ## Claims ### Claim 1 Energy supply system for supplying electrical energy to a building, comprising a grid connector unit for providing a connection to an external power grid, a load connector unit for connecting to a building power grid, a conductor loop for electrically connecting the grid connector unit to the load connector unit, an energy storage device connected to the conductor loop, and a disconnector placed in the conductor loop for, upon activation of the disconnector, disconnecting the electrical connection between the grid connector unit and the load connector unit, whereby the energy storage device is connected to the conductor loop via a discharging line such that electrical energy stored in the energy storage device may be discharged through part of the conductor loop to the load connector unit when the disconnector is activated. ### Claim 2 (depends on 1) Energy supply system according to claim 1, whereby the conductor loop is partially or entirely placed inside a loop enclosure. ### Claim 3 (depends on 2) Energy supply system according to claim 2, whereby the disconnector or an output power measurement device measuring the power reaching the load connector unit or both are placed inside the loop enclosure. ### Claim 4 (depends on 1) Energy supply system according to claim 1, whereby the grid connector unit, the load connector unit, the conductor loop, the disconnector, or the electrical connection between the energy storage device and the conductor loop are constructed as one-phase, two-phase, three-phase or multi-phase elements. ### Claim 5 (depends on 4) Energy supply system according to claim 4, whereby the disconnector is an all-phase disconnector. ### Claim 6 (depends on 1) Energy supply system according to claim 1, further comprising a grid voltage monitoring device for monitoring the voltage level at the grid connector unit. ### Claim 7 (depends on 6) Energy supply system according to claim 6, whereby the disconnector is controlled by the energy storage device in dependence of the result of the monitoring of the voltage level. ### Claim 8 (depends on 6) Energy supply system according to claim 6, whereby the energy storage device is connected to the conductor loop via a charging line such that the connection to the conductor loop is not disconnected when the disconnector is activated. ### Claim 9 (depends on 8) Energy supply system according to claim 8, whereby the disconnector is controlled by the energy storage device in dependence of the result of the monitoring of the voltage level. ### Claim 10 (depends on 2) Energy supply system according to claim 2, whereby the loop enclosure is constructed to be located in an outside environment. ### Claim 11 (depends on 1) Energy supply system according to claim 1, whereby the conductor loop is constructed for a larger current throughput, than the discharging line or any electrical connecting line connecting the energy storage device to the conductor loop. ### Claim 12 (depends on 1) Energy supply system according to claim 1, further comprising a load side connected photovoltaic device. ### Claim 13 (depends on 1) Energy supply system according to claim 1, further comprising a grid side connected photovoltaic device and a switch unit constructed for switching the connection of the photovoltaic device from a grid side connection to a load side connection when the disconnector is activated. ### Claim 14 Loop enclosure entirely or partly enclosing a conductor loop and a disconnector, and comprising grid connector terminals, load connector terminals, and discharging line terminals, whereby the enclosed conductor loop electrically connects the grid connector terminals to the load connector terminals, whereby the disconnector is constructed to, upon activation, disconnect the electrical connection between the grid connector terminals and the load connector terminals, and whereby a discharging line electrically connects the conductor loop and the discharging line terminals, even when the disconnector is activated. ### Claim 15 (depends on 14) Loop enclosure according to claim 14, further constructed for mounting at an outside of a building. ### Claim 16 (depends on 14) Loop enclosure according to claim 14, further enclosing an output power measurement device measuring the power leaving the enclosure through the load connector terminals. ### Claim 17 Energy supply system for supplying electrical energy to a building, comprising: a loop enclosure placed in proximity of and connected to a building connection box such that a grid connector unit of the building connection box, which grid connector unit provides a connection to an external power grid, is electrically connected to a load connector unit of the building connection box, which load connector unit provides a connection to a building power grid, via a conductor loop enclosed by the loop enclosure, a disconnector placed in the conductor loop inside the enclosure for, upon activation of the disconnector, disconnecting the electrical connection between the grid connector unit and the load connector unit, an energy storage device connected to the conductor loop via a discharging line such that electrical energy stored in the energy storage device may be discharged through part of the conductor loop to the load connector unit when the disconnector is activated. ### Claim 18 (depends on 17) Energy supply system according to claim 17, whereby the loop enclosure is placed at the outside of the building and the energy storage device is placed inside of the building.