# US 2013/0155674 A1 · Light-emitting device lamp > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155674 A1 - Document ID: US20130155674A1 - Status: Published application - Kind: A1 - Application number: 13/684,635 - Filed: 2012-11-26 - Published: 2013-06-20 - Earliest claimed: 2011-12-15 - Assignees: Samsung Electronics Co., Ltd. - Inventors: Dae-yeop PARK; Yun-whan NA; Ki-hong MOON - Web page: https://patentgrep.com/patent/US20130155674A1 ## CPC - F21K 9/23: Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings - F21K 9/00: Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers - F21V 29/506: of globes, bowls or cover glasses - F21V 29/507: of means for protecting lighting devices from damage, e.g. housings - F21V 3/02: characterised by the shape - F21V 3/061: {the material being glass} - F21V 3/062: {the material being plastics} - F21V 17/12: by screwing - F21V 17/164: {the parts being subjected to bending, e.g. snap joints} - F21V 29/773: {the planes containing the fins or blades having the direction of the light emitting axis} - F21V 29/87: Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor - F21V 29/89: Metals - F21Y 2115/10: Light-emitting diodes [LED] - 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 - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - 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 light-emitting device lamp includes a light-emission unit including one or more light-emitting elements; a power circuit unit supplying a power to the light-emission unit; a heat radiation unit having the light-emission unit mounted therein and radiating heat that is generated by the light-emission unit; and a housing contacting and surrounding a portion of an outer circumference of the heat radiation unit and transmitting heat generated by the power circuit unit to the heat radiation unit. ## Claims ### Claim 1 A light-emitting device lamp comprising: light-emission unit comprising one or more light-emitting elements; a power circuit which supplies a power to the light emission unit; a heat radiation unit, which comprises the light emission unit mounted therein and radiates heat; and a housing which contacts and surrounds a portion of an outer circumference of the heat radiation unit and transfers heat generated by the power circuit to the heat radiation unit. ### Claim 2 (depends on 1) The light-emitting device lamp of claim 1, wherein the housing is formed of a thermal conductive resin material. ### Claim 3 (depends on 2) The light-emitting device lamp of claim 2, wherein the thermal conductive resin material is formed of a material in which heat conductive fillers are distributed in a polymer. ### Claim 4 (depends on 1) The light-emitting device lamp of claim 1, wherein a non-conductive layer is formed on a region of the housing which is externally exposed. ### Claim 5 (depends on 1) The light-emitting device lamp of claim 1, wherein the heat radiation unit is formed by coating heat emission pigments to one from among a thermal conductive metal material and a resin material. ### Claim 6 (depends on 1) The light-emitting device lamp of claim 1, wherein at least one from among the heat radiation unit and the housing is coated with black-based pigments. ### Claim 7 (depends on 1) The light-emitting device lamp of claim 1, wherein the heat radiation unit comprises: a mount part in which the light emission unit is mounted; a heat radiation body that is connected to the mount part and surrounds a portion of the housing; and a plurality of heat radiation pins that are disposed on a side of the heat radiation body and are radially arrayed with respect to a central axis of the light-emitting device lamp. ### Claim 8 (depends on 7) The light-emitting device lamp of claim 7, wherein the housing comprises: a body contacting part that houses the power circuit and contacts the heat radiation body; and a pin contacting part that is connected to the body contacting part and that contacts and surrounds portions of the plurality of heat radiation pins. ### Claim 9 (depends on 8) The light-emitting device lamp of claim 8, wherein one or more grooves are formed in a top portion of the body contacting part, and one or more through holes corresponding to the one or more grooves are formed in regions of the mount part, whereby the body contacting part and the mount part are combined by using at least one screw. ### Claim 10 (depends on 8) The light-emitting device lamp of claim 8, wherein regions of the plurality of heat radiation pins which contact the pin contacting part are stepped, whereby an outer circumference of the pin contacting part and outer circumferences of the plurality of heat radiation pins are connected. ### Claim 11 (depends on 1) The light-emitting device lamp of claim 1, further comprising a lamp cover that covers the heat radiation unit, and the heat radiation unit comprises a cover contacting part that is formed on an upper portion of the heat radiation unit and contacts a side surface of the lamp cover. ### Claim 12 (depends on 11) The light-emitting device lamp of claim 11, wherein a coupling groove to which the lamp cover is coupled is formed in the side of the heat radiation body, and a projection coupled to the coupling groove is formed on an end of the lamp cover. ### Claim 13 (depends on 11) The light-emitting device lamp of claim 11, wherein the lamp cover comprises a radiation angle adjuster which adjusts a radiation angle of light emitted from the light emission unit. ### Claim 14 (depends on 11) The light-emitting device lamp of claim 11, wherein the lamp cover is formed of a light-transmitting material having a thermal conductivity. ### Claim 15 (depends on 11) The light-emitting device lamp of claim 11, wherein the lamp cover comprises a light-transmitting cover and one or more thermal conductive layers that are formed on an outer circumference of the light-transmitting cover.