# US 10,371,366 B2 · Lighting device for vehicle, manufacturing method of lighting device for vehicle, and lighting tool for vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,371,366 B2 - Document ID: US10371366B2 - Status: Granted - Kind: B2 - Application number: 15/670,114 - Filed: 2017-08-07 - Published: 2018-04-12 - Granted: 2019-08-06 - Earliest claimed: 2016-10-11 - Assignees: Toshiba Lighting & Technology Corporation - Applicants: Toshiba Lighting & Technology Corporation - Inventors: Kiyokazu Hino - Web page: https://patentgrep.com/patent/US10371366B2 ## CPC - F21V 23/06: the elements being coupling devices {, e.g. connectors} - B29C 65/02: by heating, with or without pressure - B29C 65/645: {using friction or ultrasonic vibrations} - F21S 43/14: Light emitting diodes [LED] - F21S 43/195: {Details of lamp holders, terminals or connectors} - F21S 45/00: Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light - F21S 45/48: with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device - F21W 2102/00: Exterior vehicle lighting devices for illuminating purposes - F21W 2103/00: Exterior vehicle lighting devices for signalling purposes - F21W 2103/20: Direction indicator lights - 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 - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - 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 According to one embodiment, a lighting device for vehicle includes a socket; a light emitting unit which is provided at one end portion of the socket, and includes a light emitting element; an insulating portion which includes a resin, and is provided inside a hole provided in the socket; a power feeding terminal which has conductivity, extends inside the insulating portion, and of which one end portion protrudes from the insulating portion, and is electrically connected to the light emitting unit; and a melting portion which is connected to an inner wall face of the hole, and at least one end face of the insulating portion. ## Claims ### Claim 1 A lighting device for vehicle comprising: a socket having a heat radiating fin; a light emitting unit which is provided at one end portion of the socket, and includes a light emitting element; an insulating portion which includes a resin, and is provided inside a hole provided in the socket, the hole being a through hole; a power feeding terminal which has conductivity, extends inside the insulating portion, and of which one end portion protrudes from the insulating portion, and is electrically connected to the light emitting unit; and a melting portion which is connected to an inner wall face of the hole, the melting portion being further connected to at least one of an end face on the light emitting unit side, and an end face on the heat radiating fin side of the insulating portion. ### Claim 2 (depends on 1) The device according to claim 1, wherein an end portion of the melting portion on an insulating portion side is fused on an end face of the insulating portion. ### Claim 3 (depends on 1) The device according to claim 1, wherein an end portion of the melting portion on an insulating portion side is formed integrally with the insulating portion. ### Claim 4 (depends on 1) The device according to claim 1, wherein the inner wall face of the hole is formed of a resin, and an end portion of the melting portion on an inner wall face side of the hole is fused on the inner wall face of the hole. ### Claim 5 (depends on 1) The device according to claim 1, wherein the inner wall face of the hole is formed of metal, and an end portion of the melting portion on an inner wall face side of the hole enters the inside of an irregular portion formed on the inner wall face of the hole. ### Claim 6 (depends on 1) The device according to claim 1, wherein the inner wall face of the hole is formed of metal, and an end portion of the melting portion on an inner wall face side of the hole is chemically bonded to the inner wall face of the hole. ### Claim 7 (depends on 1) The device according to claim 1, wherein the melting portion is provided in vicinity of a peripheral edge of the end face of the insulating portion. ### Claim 8 (depends on 1) The device according to claim 1, wherein the melting portion is provided along a peripheral edge on the end face of the insulating portion. ### Claim 9 (depends on 1) The device according to claim 1, wherein the melting portion is continuously formed along a peripheral edge of the end face of the insulating portion. ### Claim 10 (depends on 1) The device according to claim 1, wherein the melting portion is intermittently formed along a peripheral edge of the end face of the insulating portion. ### Claim 11 (depends on 1) The device according to claim 1, wherein a planar shape of the melting portion is an annular shape. ### Claim 12 (depends on 1) The device according to claim 1, wherein a planar shape of the melting portion is an island shape or a point shape. ### Claim 13 (depends on 1) The device according to claim 1, wherein an end portion of the melting portion is fused on at least any one of the inner wall face of the hole and the end face of the insulating portion. ### Claim 14 (depends on 1) The device according to claim 1, wherein the melting portion includes a thermal plastic resin. ### Claim 15 (depends on 1) The device according to claim 1, wherein the socket includes at least any one of metal and a high heat conductive resin. ### Claim 16 (depends on 1) The device according to claim 1, wherein the socket has conductivity. ### Claim 17 (depends on 1) The device according to claim 1, wherein the insulating portion includes the resin with an insulating property. ### Claim 18 A manufacturing method of a lighting device for vehicle comprising: inserting an insulating portion which holds a power feeding terminal into a hole provided in a socket having a heat radiating fin, the hole provided in the socket being a through hole; and forming a melting portion which is connected to an inner wall face of the hole, and at least one end face of the insulating portion, at least one of an end face on the light emitting unit side, and an end face on the heat radiating fin side of the insulating portion, or a protrusion portion which is integrally formed with the inner wall face of the hole being heated, in the forming of the melting portion. ### Claim 19 A manufacturing method of a lighting device for vehicle comprising: inserting an insulating portion which holds a power feeding terminal into a hole provided in a socket having a heat radiating fin, the hole provided in the socket being a through hole; and forming a melting portion which is connected to an inner wall face of the hole, and at least one of an end face on the light emitting unit side, and an end face on the heat radiating fin side of the insulating portion, an annular member which comes into contact with at least one end face of the insulating portion, and at least any portion of the inner wall face of the hole being provided, and the annular member being heated, in the forming of the melting portion. ### Claim 20 (depends on 1) A lighting tool for vehicle comprising: the lighting device for vehicle according to claim 1; and a housing to which the lighting device for vehicle is attached.