# US 10,119,677 B2 · Lighting device for a motor vehicle, incorporating means for protection against electrostatic discharges > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,119,677 B2 - Document ID: US10119677B2 - Status: Granted - Kind: B2 - Application number: 15/618,789 - Filed: 2017-06-09 - Published: 2017-12-14 - Granted: 2018-11-06 - Earliest claimed: 2016-06-09 - Assignees: Valeo Vision - Applicants: Valeo Vision - Inventors: Christophe Roger; Jerome Jobard; Pierre Placais - Web page: https://patentgrep.com/patent/US10119677B2 ## CPC - F21S 41/192: {Details of lamp holders, terminals or connectors} - B60Q 1/04: the devices being headlights - F21S 41/19: Attachment of light sources or lamp holders (achieving variable light distribution by movable light sources F21S41/657) - F21S 41/285: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805} - F21S 43/14: Light emitting diodes [LED] - F21S 43/19: Attachment of light sources or lamp holders - F21S 43/26: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255} - F21S 45/10: Protection of lighting devices (cooling of lighting devices F21S45/40; waterproofing of lighting devices F21S45/50) - F21S 45/47: Passive cooling, e.g. using fins, thermal conductive elements or openings - F21V 29/89: Metals - H05K 1/0259: {Electrostatic discharge [ESD] protection} - H05K 9/0067: {Devices for protecting against damage from electrostatic discharge} - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract The invention proposes a lighting device for a motor vehicle. Such a device includes one or more electronic circuits incorporating electronic components sensitive to an electrostatic discharge. Thanks to the features of the invention, the components are protected by encouraging the controlled flow to ground of any electrostatic discharges. All portions of one or more electronic circuits can therefore be protected by preventing random electrostatic discharges liable to destroy or to degrade sensitive electronic components. ## Claims ### Claim 1 Lighting device for a motor vehicle, including a substrate on which is arranged at least one element of an electronic circuit including at least one electronic component sensitive to an electrostatic discharge, and a structure that is distinct from the substrate and liable to carry electrical charges, the shortest distance between the structure and each of the elements of the circuit being equal to D1, and an electrically conductive means connected electrically to ground, wherein the device comprises at least one protective element protecting against electrostatic discharges which is disposed on the structure and linked electrically to the latter, the smallest distance between the protective element and the electrically conductive means, D2, being less than D1. ### Claim 2 (depends on 1) Device according to claim 1, wherein the electrically conductive means comprises a zone of the substrate. ### Claim 3 (depends on 1) Device according to claim 1, wherein the device comprises a distinct metallic portion separate from the substrate, of which said electrically conductive means forms part. ### Claim 4 (depends on 1) Device according to claim 1, wherein the protective element comprises an electrically conductive metallic material. ### Claim 5 (depends on 1) Device according to claim 1, wherein the protective element is integral with said structure. ### Claim 6 (depends on 1) Device according to claim 1, wherein the protective element is a portion which is fastened to said structure. ### Claim 7 (depends on 1) Device according to claim 1, wherein the protective element extends from said structure to the electrically conductive means. ### Claim 8 (depends on 1) Device according to claim 1, wherein the substrate is the substrate of a printed circuit board (PCB). ### Claim 9 (depends on 1) Device according to claim 1, wherein the substrate is the substrate of an interconnection device (MID) having a complex geometry. ### Claim 10 (depends on 1) Device according to claim 1, wherein the electronic component is a light-emitting diode (LED), a laser diode or an organic light-emitting diode (OLED). ### Claim 11 (depends on 1) Device according to claim 1, wherein the structure is an element of the outer lens of the lighting device or a metalized plastic portion liable to carry electrical charges. ### Claim 12 (depends on 1) Device according to claim 1, wherein the device is a front light or a rear light of a motor vehicle. ### Claim 13 (depends on 2) Device according to claim 2, wherein the protective element comprises an electrically conductive metallic material. ### Claim 14 (depends on 2) Device according to claim 2, wherein the protective element is integral with said structure. ### Claim 15 (depends on 2) Device according to claim 2, wherein the protective element is a portion which is fastened to said structure. ### Claim 16 (depends on 2) Device according to claim 2, wherein the protective element extends from said structure to the electrically conductive means. ### Claim 17 (depends on 2) Device according to claim 2, wherein the substrate is the substrate of a printed circuit board (PCB). ### Claim 18 (depends on 2) Device according to claim 2, wherein the substrate is the substrate of an interconnection device (MID) having a complex geometry. ### Claim 19 (depends on 2) Device according to claim 2, wherein the electronic component is a light-emitting diode (LED), a laser diode or an organic light-emitting diode (OLED). ### Claim 20 (depends on 2) Device according to claim 2, wherein the structure is an element of the outer lens of the lighting device or a metalized plastic portion liable to carry electrical charges.