Title:
SUBSTRATE SHEET FOR CARD-TYPE LAMP UNIT, CARD-TYPE LAMP UNIT, AND VEHICLE LAMP
Document Type and Number:
WIPO Patent Application WO/2023/140108
Kind Code:
A1
Abstract:
The present invention relates to: a substrate sheet for a card-type lamp unit having an external connector insertion part and a heat dissipation plate differing in linear expansion coefficient; a card-type lamp unit; and a vehicle lamp. Provided is a substrate sheet (20) for a card-type lamp unit (5), said substrate sheet (20) having: a card-type lamp unit (5) that has a polygonal substrate body (10) which has outer peripheral sides (10b to 10d) and a connector formation side (12), an external connector insertion part (11) which is formed at the connector formation side (12), a heat dissipation member (16) which is integrated with the substrate body (10) and which differs in linear expansion coefficient from the substrate body (10), and a light-emitting element light source (6) which is to be connected to a control circuit (13) for turning illumination on/off; and a frame body (23) that is integral with the card-type lamp unit (5) via joining end parts (10e), which are formed at the outer peripheral sides of the substrate body (10), wherein the connector formation side (12) is provided with joining end parts (21, 22) for joining with the frame body (23).
Inventors:
SUZUKI TETSUYA (JP)
Application Number:
PCT/JP2023/000041
Publication Date:
July 27, 2023
Filing Date:
January 05, 2023
Export Citation:
Assignee:
KOITO MFG CO LTD (JP)
International Classes:
F21V19/00; F21S41/143; F21S41/19; F21S45/43; F21S45/47; F21V23/06; F21V29/503; F21V29/67; F21V29/76; F21Y115/10; F21Y115/30
Domestic Patent References:
| WO2019117190A1 | 2019-06-20 |
Foreign References:
| JP2014154637A | 2014-08-25 | |||
| JP2021131937A | 2021-09-09 | |||
| JP2021012867A | 2021-02-04 |
Attorney, Agent or Firm:
FUJIOKA, Takahiro (JP)
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