# US 10,309,621 B2 · Automobile LED headlamp > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,621 B2 - Document ID: US10309621B2 - Status: Granted - Kind: B2 - Application number: 15/745,116 - Filed: 2017-09-28 - Published: 2019-01-17 - Granted: 2019-06-04 - Earliest claimed: 2016-11-22 - Assignees: Shenzhen Aurora Technology Limited - Applicants: Shenzhen Aurora Technology Co., Ltd. - Inventors: Qingbo Xie - Web page: https://patentgrep.com/patent/US10309621B2 ## CPC - F21V 17/12: by screwing - B60Q 1/0433: {the housing being fastened onto the vehicle body using screws (adjustable headlamp by rotation of a screw B60Q1/0683)} - F21S 41/141: Light emitting diodes [LED] - F21S 41/151: arranged in one or more lines - F21S 41/192: {Details of lamp holders, terminals or connectors} - F21S 45/47: Passive cooling, e.g. using fins, thermal conductive elements or openings - F21V 19/00: Fastening of light sources or lamp holders (fastening electric light source solely by the coupling device H01R33/00 {; special means for attaching candle to candle holder F21V35/003}) - F21V 23/00: Arrangement of electric circuit elements in or on lighting devices {(characterised by cooling arrangements F21V29/508)} - F21V 29/74: with fins or blades - F21V 29/77: with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section - F21V 29/83: the elements having apertures, ducts or channels, e.g. heat radiation holes - F21Y 2107/90: on two opposite sides of supports or substrates - 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 - B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL - 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 An automobile LED headlamp, comprising a stem, an LED module and a heat dissipation module, wherein, the LED module is mounted on the stem; the heat dissipation module comprises a fixing element and a plurality of heat dissipation strips, the fixing element is fixedly connected to one end of the stem, each of the heat dissipation strips is fixed to the fixing element, and each of the heat dissipation strips is distributed radially. The arrangement of the heat dissipation module is configured to enhance the heat dissipation capability, each heat dissipation strip is fixed on the fixing element in a annular and radial distribution, the heat dissipation area is maximized, the air convection speed is faster, and the heat dissipation is accelerated. ## Claims ### Claim 1 An automobile LED headlamp, comprising: a stem and an LED module, wherein the LED module is mounted on the stem; the automobile LED headlamp further comprises a heat dissipation module, the heat dissipation module comprises a fixing element and a plurality of heat dissipation strips, the fixing element is fixedly connected to one end of the stem, the heat dissipation strips are fixed to the fixing element, and the heat dissipation strips are distributed radially, the fixing element comprises a fixing base and a fixing cover, the fixing base is fixedly connected with one end of the stem, and the fixing cover is fixedly connected with the fixing base; each of the heat dissipation strips is locked and connected between the fixing base and the fixing cover by riveting, a middle portion of each heat dissipation strip in the longitudinal direction thereof is fixed to the fixing element, and a plurality of heat dissipation strips are disposed in a stacked manner between the fixing base and the fixing cover. ### Claim 2 (depends on 1) The automobile LED headlamp of claim 1, wherein each of the heat dissipation strips is a metal braid strip or a metal sheet. ### Claim 3 (depends on 1) The automobile LED headlamp of claim 1, wherein one end of the stem is provided with a threaded hole, one end of the fixing base opposite to the fixing cover is provided with a threaded post, the threaded post is threadedly engaged into the threaded hole such that the fixing element is fixedly attached to the stem. ### Claim 4 (depends on 1) The automobile LED headlamp of claim 1, wherein the fixing cover is provided with a riveting post, the fixing base is provided with a riveting hole of which the position corresponds to the position of the riveting post, the riveting post is inserted into the riveting hole and riveted with the riveting hole such that the fixing cover is fixedly connected to the fixing base. ### Claim 5 (depends on 4) The automobile LED headlamp of claim 4, wherein the middle portion of the riveting post is provided with a through hole for a power line extending therethrough. ### Claim 6 (depends on 1) The automobile LED headlamp according to claim 1, wherein the automobile LED headlamp further comprises a mounting bracket configured for connecting with an external component, a mounting hole is formed in the middle of the mounting bracket, the stem passes through the mounting hole, and the mounting bracket is fixedly connected with the stem through a first fastener. ### Claim 7 (depends on 1) The automobile LED headlamp according to claim 1, wherein a side of the stem is provided with at least one recess, the LED module comprises a substrate and an LED array and a control module which are arranged on the substrate, the substrate is arranged in the recess and fixedly connected with the stem. ### Claim 8 (depends on 7) The automobile LED headlamp of claim 7, wherein the LED module further comprises a fixing block, the fixing block abuts against the substrate and fixedly connected to the stem through a second fastener. ### Claim 9 (depends on 7) The automobile LED headlamp of claim 7, wherein the number of the recesses is two, and the two recesses are distributed at symmetrical positions of the stem, the number of the LED modules is two, and the two LED modules are respectively mounted in the two recesses.