# US 2014/0153225 A1 · Led lighting device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153225 A1 - Document ID: US20140153225A1 - Status: Published application - Kind: A1 - Application number: 14/172,251 - Filed: 2014-02-04 - Published: 2014-06-05 - Earliest claimed: 2011-08-08 - Assignees: Icepipe Corporation - Applicants: Icepipe Corporation - Inventors: Sang-Cheol Lee - Web page: https://patentgrep.com/patent/US20140153225A1 ## CPC - F21S 8/061: {with a non-rigid pendant, i.e. a cable, wire or chain} - F21K 9/20: Light sources comprising attachment means - F21V 23/023: {Power supplies in a casing (F21V23/003 takes precedence)} - F21V 29/70: characterised by passive heat-dissipating elements, e.g. heat-sinks - F21V 29/717: {using split or remote units thermally interconnected, e.g. by thermally conductive bars or heat pipes} - F21V 29/83: the elements having apertures, ducts or channels, e.g. heat radiation holes - F28D 15/0266: {with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers (F28D15/043 takes precedence)} - F21V 29/507: of means for protecting lighting devices from damage, e.g. housings - F21Y 2103/33: annular - F21Y 2115/10: Light-emitting diodes [LED] - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - 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 - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) - 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 An LED lighting apparatus includes: a light source module having an LED light source therein; a thermal base coupled with the light source module and configured to receive heat generated by the light source module; a heat-dissipating member coupled with edge regions of the thermal base to discharge heat transferred from the thermal base and having a ventilation unit formed therein for opening a central area of the thermal base so as to facilitate air ventilation; and a power supply unit disposed outside the heat-dissipating member so as to be positioned in a path of air moving toward the heat-dissipating member and configured to supply electric power to the light source module, thereby improving the heat-dissipating efficiency by facilitating the air around the heat-dissipating member and the power supply unit to flow without stagnation and effectively preventing overheating of the power supply unit by cooling the power supply unit. ## Claims ### Claim 1 An LED lighting apparatus comprising: a light source module having an LED light source therein; a thermal base coupled with the light source module and configured to receive heat generated by the light source module; a heat-dissipating member coupled with edge regions of the thermal base to discharge heat transferred from the thermal base and having a ventilation unit formed therein for opening a central area of the thermal base so as to facilitate air ventilation with an outside; and a power supply unit disposed outside the heat-dissipating member so as to be positioned in a path of air moving toward the heat-dissipating member and configured to supply electric power to the light source module. ### Claim 2 (depends on 1) The LED light apparatus of claim 1, wherein the heat-dissipating member comprises a spiral structure of heat-dissipating loop that repeatedly forms heat-absorbing units coupled to the edge regions of the thermal base to receive heat and heat-dissipating units separated from the heat-absorbing units to dissipate the absorbed heat. ### Claim 3 (depends on 2) The LED lighting apparatus of claim 2, wherein the heat-dissipating loop comprises an oscillating capillary tube type of heat-pipe loop, into which working fluid is injected. ### Claim 4 (depends on 1) The LED lighting apparatus of claim 1, further comprising a case having the heat-dissipating member and the power supply unit accommodated therein and having an opening formed on an upper side thereof for allowing air to pass through. ### Claim 5 (depends on 1) The LED lighting apparatus of claim 1, further comprising a front cover covering the light source module and having ventilation holes formed in edge regions thereof. ### Claim 6 (depends on 1) The LED lighting apparatus of claim 1, further comprising a support member configured to separate the power supply unit from the thermal base and to support the power supply unit. ### Claim 7 (depends on 1) The LED lighting apparatus of claim 1, wherein the LED light source is provided in plurality, and wherein the plurality of LED light sources are disposed corresponding to the edge regions of the thermal base.