Title:
VEHICULAR LAMP
Document Type and Number:
WIPO Patent Application WO/2023/210242
Kind Code:
A1
Abstract:
The present invention comprises: a substrate on which a light source is mounted; a heat sink by which heat generated during driving of the light source is transmitted; and a cooling fan that blows cooling air toward the heat sink, where the heat sink is provided with a base unit to which the substrate is attached on one surface and a plurality of plate-shaped heat dissipation fins projecting from the other surface of the base unit and aligned in a prescribed direction, the space between adjacent heat dissipation fins is formed as a flow space in which cooling air sent from the cooling fan flows, and the heat sink is provided with a flow speed accelerating unit that increases the flow speed of the cooling air flowing in the flow space.
Inventors:
NOZUE SHUHEI (JP)
MURAMATSU TEPPEI (JP)
MURAMATSU TEPPEI (JP)
Application Number:
PCT/JP2023/012476
Publication Date:
November 02, 2023
Filing Date:
March 28, 2023
Export Citation:
Assignee:
KOITO MFG CO LTD (JP)
International Classes:
F21S45/435; F21S41/143; F21S45/47; F21V29/65; F21V29/76; F21V29/80; F21W102/13; F21Y115/10
Foreign References:
| CN110594698A | 2019-12-20 | |||
| JP2017062886A | 2017-03-30 | |||
| JP2019114558A | 2019-07-11 | |||
| JP2017011203A | 2017-01-12 |
Attorney, Agent or Firm:
TECHNOPEER PATENTS & TRADEMARKS (JP)
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