# US 9,752,760 B2 · Lighting Device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,760 B2 - Document ID: US9752760B2 - Status: Granted - Kind: B2 - Application number: 14/922,947 - Filed: 2015-10-26 - Published: 2016-04-28 - Granted: 2017-09-05 - Earliest claimed: 2014-10-27 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Hyeuk Chang; Jongpil Kim; Jaepyo Hong; Jinsung Kwak - Web page: https://patentgrep.com/patent/US9752760B2 ## CPC - F21V 17/164: {the parts being subjected to bending, e.g. snap joints} - F21K 9/20: Light sources comprising attachment means - F21V 5/007: {Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane (combination of two or more refractors F21V5/008)} - F21V 17/12: by screwing - F21V 23/002: {Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm} - F21V 23/008: {the casing being outside the housing of the lighting device} - F21V 23/06: the elements being coupling devices {, e.g. connectors} - F21V 31/005: {Sealing arrangements therefor} - F21W 2131/10: Outdoor lighting - F21Y 2105/10: comprising a two-dimensional [2D] array of point-like light-generating elements - 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 - F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS - 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 lighting device includes a housing including a power connection hole, at least one light source module disposed on a lower surface of the housing, and a front cover coupled to the housing to define a space in which the light source module is located. The front cover transmits light generated by the light source module. The light source module includes a support protrusion supported by the front cover. The front cover presses the support protrusion when the front cover is coupled to the housing. ## Claims ### Claim 1 A lighting device comprising: a housing having a power connection hole therein; at least one light source module disposed at a lower surface of the housing, the light source module including a support protrusion; a front cover coupled to the housing to define a space in which the light source module is located, the front cover configured to permit light generated by the light source module to pass therethrough; a power unit spaced apart from the housing, the power unit configured to supply power to the light source module; a connection unit connecting the housing to the power unit, the connection unit including: a cable hole through which a cable is configured to pass; and a connection body surrounding the cable hole; and a light source fixing unit to fix the light source module to the connection unit, the light source fixing unit including: at least one light source fixing groove provided on the connection body and recessed in a direction extending outwardly of the cable hole; and a light source fixing protrusion provided on the light source module and receivable within the light source fixing groove, wherein the front cover presses against the support protrusion when the front cover is coupled to the housing to support the light source module, and wherein a portion of the connection body is inserted into the power connection hole in the housing. ### Claim 2 (depends on 1) The lighting device according to claim 1, wherein the front cover comprises: a cover body surrounding the light source module; a front cover coupling member coupling the cover body to the housing; and an optical plate covering a lower portion of the light source module, the optical plate configured to change optical properties of light generated by the light source module. ### Claim 3 (depends on 2) The lighting device according to claim 2, further comprising a hook hole provided in the housing, wherein the front cover coupling member comprises a hook coupled through the hook hole in the housing. ### Claim 4 (depends on 2) The lighting device according to claim 2, wherein the cover body includes an expansion section at a lower portion of the cover body and extending outwardly from the cover body, the expansion section configured to guide light generated by the light source module. ### Claim 5 A lighting device comprising: a housing having a power connection hole therein; at least one light source module disposed at a lower surface of the housing, the light source module including a support protrusion; and a front cover coupled to the housing to define a space in which the light source module is located, the front cover configured to permit light generated by the light source module to pass therethrough, wherein the front cover presses against the support protrusion when the front cover is coupled to the housing to support the light source module, and wherein the front cover comprises: a cover body surrounding the light source module; a front cover coupling member coupling the cover body to the housing; an optical plate covering a lower portion of the light source module, the optical plate configured to change optical properties of light generated by the light source module; a sealing ring to which an edge of the optical plate is fitted, the sealing ring being located inwardly of the cover body; and a sealing ring seating section for seating the sealing ring on the front cover. ### Claim 6 (depends on 5) The lighting device according to claim 5, wherein the front cover coupling member is located outside of a closed space defined by the sealing ring. ### Claim 7 (depends on 5) The lighting device according to claim 5, wherein the light source module comprises: a support substrate; and a plurality of light emitting elements protruding from the support substrate, wherein the support protrusion protrudes further from the support substrate than the light emitting elements. ### Claim 8 (depends on 7) The lighting device according to claim 7, wherein the support protrusion is pressed by the optical plate. ### Claim 9 (depends on 1) The lighting device according to claim 1, wherein the connection body comprises: an insertion section inserted into the power connection hole in the housing; and a coupling section overlapping with a periphery of the power connection hole, wherein the light source fixing groove is provided in the insertion section. ### Claim 10 (depends on 9) The lighting device according to claim 9, wherein the light source fixing groove comprises a plurality of light source fixing grooves circumferentially arranged on an inner surface of the cable hole. ### Claim 11 (depends on 10) The lighting device according to claim 10, wherein one end of the light source module overlaps with a portion of the power connection hole in the housing, and wherein the light source fixing protrusion is located at the one end of the light source module overlapping with the portion of the power connection hole. ### Claim 12 (depends on 9) The lighting device according to claim 9, wherein the light source module comprises: a plurality of light emitting elements; and a support substrate supporting the light emitting elements, wherein the support substrate comprises: a connector coupling section coupled with a connector connectable to a cable; and a connector seating groove into which the connector is seated. ### Claim 13 (depends on 12) The lighting device according to claim 12, further comprising a positioning unit including: a housing positioning hole provided in the housing; and a light source positioning hole provided in the light source module. ### Claim 14 A lighting device comprising: a housing having a power connection hole therein; at least one light source module disposed at a lower surface of the housing, the light source module including a support protrusion; a front cover coupled to the housing to define a space in which the light source module is located, the front cover configured to permit light generated by the light source module to pass therethrough, wherein the front cover presses against the support protrusion when the front cover is coupled to the housing to support the light source module; a power unit spaced apart from the housing, the power unit configured to supply power to the light source module; and a connection unit connecting the housing to the power unit, the connection unit including: a cable hole through which a cable is configured to pass; and a connection body surrounding the cable hole, wherein a portion of the connection body is inserted into the power connection hole in the housing, and wherein the connection body comprises: an insertion section inserted into the power connection hole in the housing; a coupling section overlapping with a periphery of the power connection hole to come into contact with a rear surface of the housing; at least one body coupling hole provided in the coupling section; and a housing fastening member passing through the housing and coupled to the body coupling hole. ### Claim 15 (depends on 14) The lighting device according to claim 14, wherein the lighting device further comprises a sealing member located between the coupling section and the rear surface of the housing. ### Claim 16 (depends on 15) The lighting device according to claim 15, wherein the sealing member is arranged to surround the insertion section and the body coupling hole. ### Claim 17 (depends on 15) The lighting device according to claim 15, wherein the sealing member comprises: an inner sealing member arranged to surround the insertion section; and an outer sealing member arranged to surround the insertion section, the inner sealing member, and the body coupling hole. ### Claim 18 (depends on 17) The lighting device according to claim 17, wherein the coupling section of the connection body further comprises an outer sealing groove surrounding the insertion section and the body coupling hole, and wherein the outer sealing member is inserted into the outer sealing groove.