VEHICLE LIGHTING DEVICE AND VEHICLE LIGHTING FIXTURE

• Main Author: HATANAKA TOSHIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 27.05.2021
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

To provide a vehicle lighting device and a vehicle lighting fixture that can reduce adhesion of an adhesive agent to the vicinity of the periphery of a substrate.SOLUTION: A vehicle lighting device according to an embodiment comprises: a socket; a heat transmission part or a projection portion disposed on one end part side of the socket; a substrate disposed on the heat transmission part or the projection portion; at least one light emitting element disposed on the substrate at the opposite side to the heat transmission part or on the substrate at the opposite side to the projection portion; and an adhesion layer disposed between the substrate and the heat transmission part or between the substrate and the projection portion. A center region and a peripheral region outside the center region are disposed in a region of the heat transmission part closer to the substrate or in a region of the projection portion closer to the substrate. In at least a part of the peripheral region, the distance between the substrate and an end portion of the part opposite to the center region is greater than the distance between the substrate and an end portion of the part closer to the center region.SELECTED DRAWING: Figure 3 【課題】基板の周縁近傍に接着剤が付着するのを抑制することができる車両用照明装置、および車両用灯具を提供することである。【解決手段】実施形態に係る車両用照明装置は、ソケットと：前記ソケットの一方の端部側に設けられた伝熱部または凸部と；前記伝熱部の上、または、前記凸部の上に設けられた基板と；前記基板の、前記伝熱部側とは反対側、または、前記基板の、前記凸部側とは反対側に設けられた少なくとも１つの発光素子と；前記基板と前記伝熱部との間、または、前記基板と前記凸部との間に設けられた接着層と；を具備している。前記伝熱部の前記基板側の領域、または、前記凸部の前記基板側の領域には、中央領域と、前記中央領域の外側に設けられた周縁領域と、が設けられている。前記周縁領域の、少なくとも一部分において、当該部分の、前記中央領域側とは反対側の端部と前記基板との間の距離は、前記当該部分の、前記中央領域側の端部と前記基板との間の距離よりも大きい。【選択図】図３