# US 11,306,901 B2 · Internet of things adaptable downlight > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,306,901 B2 - Document ID: US11306901B2 - Status: Granted - Kind: B2 - Application number: 17/183,443 - Filed: 2021-02-24 - Published: 2021-06-17 - Granted: 2022-04-19 - Earliest claimed: 2019-05-17 - Assignees: Ledvance GmbH - Applicants: Ledvance LLC - Inventors: Anil Jeswani; Ahmed Eissa; Renaud Richard; Janet Milliez; Valeriy Zolotykh - Web page: https://patentgrep.com/patent/US11306901B2 ## CPC - F21V 21/04: Recessed bases - F21S 8/026: {intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling} - F21V 23/003: {the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array} - F21V 23/009: {the casing being inside the housing of the lighting device} - F21V 23/0435: {activated by remote control means} - F21Y 2105/18: annular; polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam - F21Y 2115/10: Light-emitting diodes [LED] - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract A luminaire that includes a housing having a downlight geometry and containing a light engine including light emitting diodes (LEDs), in which the light engine is positioned to emit light through a light emission end of the housing. The housing contains driver electronics for controlling power received by the luminaire for powering the light engine. An access opening on a back surface of the housing exposes the driver electronics. A junction box supporting at least a portion of a wireless control module. The junction box having an electrical pathway opening is engaged to the back surface of the housing. The wireless control module is contained in the knockout of the junction box. Electrical communication between the wireless control module and the driver circuit is across a physical electrically conductive pathway that extends through the electrical pathway opening of the junction box. ## Claims ### Claim 1 A luminaire comprising: a housing containing a light engine for projecting light through a front side of the housing, wherein the housing contains driver electronics for controlling power received by the luminaire for powering the light engine, a main power line connection to the driver electronics extending through a sidewall of the housing containing the light engine, wherein an access opening is present through an exterior surface of a back side of the housing that is opposite the front side of the housing; and a junction box that is engaged to the exterior surface of the back side of the housing having the access opening, the junction box having a control module and an electrical pathway opening, wherein electrical communication between the control module is across an electrically conductive pathway that extends through the access opening into connection with the driver electronics, wherein the main power line connection is outside the junction box containing the control module. ### Claim 2 (depends on 1) The luminaire of claim 1, wherein the light engine includes light emitting diodes (LEDs). ### Claim 3 (depends on 1) The luminaire of claim 1, wherein the exterior surface is a back surface or side surface of the housing. ### Claim 4 (depends on 1) The luminaire of claim 1, wherein the housing further comprises an access door that is present on the access opening. ### Claim 5 (depends on 1) The luminaire of claim 1, wherein the junction box engages to the exterior surface of the housing by snap fit engagement. ### Claim 6 (depends on 5) The luminaire of claim 5, wherein the snap fit engagement is selected from the group consisting of cantilever snap fit, annular snap fit, torsional snap fit or a combination thereof. ### Claim 7 (depends on 1) The luminaire of claim 1, wherein the junction box engages the exterior surface of the housing by nut and bolt arrangements or threaded fasteners. ### Claim 8 (depends on 1) The luminaire of claim 1, wherein the electrically conductive pathway comprises wiring, the wiring including an auxiliary power source wiring from the driver circuit to the wireless control module, and control wiring for controlling at least one function of the luminaire. ### Claim 9 (depends on 8) The luminaire of claim 8, wherein at least one function of the luminaire being controlled through the control wiring is light dimming. ### Claim 10 A luminaire comprising: a housing and a light engine including at light emitting diodes (LEDs), in which the light engine is positioned to emit light through a light emission end of the housing, the housing containing driver electronics for controlling power received by the luminaire for powering the light engine, wherein the luminaire includes an access opening on an exterior surface of the housing and a main power line connection; and a junction box containing a control module and a wiring opening, the junction box is reversibly engaged to an exterior surface of the housing, wherein electrical communication between the wireless control module is by wiring that extends from the control module through the wiring opening to the driver electronics, wherein the main power line connection is outside the junction box containing the control module. ### Claim 11 (depends on 10) The luminaire of claim 10, wherein the light emitting diodes are surface mount device (SMD) light emitting diodes (LED), chip on board (COB) light emitting diode or a combination thereof. ### Claim 12 (depends on 10) The luminaire of claim 10, wherein the exterior surface is a back surface or side surface of the housing. ### Claim 13 (depends on 10) The luminaire of claim 10, wherein the junction box being said reversibly engaged to the exterior surface of the housing is by snap fit engagement, wherein the snap fit engagement is selected from the group consisting of cantilever snap fit, annular snap fit, torsional snap fit or a combination thereof. ### Claim 14 (depends on 10) The luminaire of claim 10, wherein the wiring includes an auxiliary power source wiring from the driver circuit to the wireless control module, and control wiring for controlling at least one function of the luminaire, wherein the at least one function of the luminaire being controlled through the control wiring is light dimming. ### Claim 15 A method of adding wireless control to a luminaire comprising: exposing driver circuitry through an exterior surface of a housing for a luminaire, wherein the housing contains a light engine that is positioned to emit light through a light emission end of the housing and contains the driver circuitry to control power received by the luminaire for powering the light engine, wherein the housing for the luminaire includes a main power line connection; engaging a junction box for supporting at least a portion of a control module to the exterior surface of the housing, the junction box having an electrical pathway opening, wherein the main power line connection is outside the junction box containing the control module; and providing an electrical pathway from the control module to the driver circuitry, in which the electrical pathway passes through the electrical pathway opening of the junction box. ### Claim 16 (depends on 15) The method of claim 15, wherein the exterior surface is a back surface or side surface of the housing. ### Claim 17 (depends on 15) The method of claim 15, wherein the junction box engages to the exterior surface of the housing by snap fit engagement, wherein the snap fit engagement is selected from the group consisting of cantilever snap fit, annular snap fit, torsional snap fit or a combination thereof. ### Claim 18 (depends on 15) The method of claim 15, wherein the junction box engages the exterior surface of the housing by nut and bolt arrangements or threaded fasteners. ### Claim 19 (depends on 15) The method of claim 15, wherein the physical electrically conductive pathway comprises wiring, the wiring including an auxiliary power source wiring from the driver circuit to the wireless control module, and control wiring for controlling at least one function of the luminaire. ### Claim 20 (depends on 19) The method of claim 19, wherein the at least one function of the luminaire being controlled through the control wiring is light dimming.