Vehicle indoor illumination device

Patent metadata

Field	Value
Publication number	US-12151609-B2
Application number	US-202318529556-A
Country	US
Kind code	B2
Filing date	Dec 5, 2023
Priority date	May 10, 2022
Publication date	Nov 26, 2024
Grant date	Nov 26, 2024

Abstract

A vehicle indoor illumination device includes a housing having an upper opening with an internal space formed therein, a light-emitting unit disposed on the housing to emit light, a diffuser disposed outside the light-emitting unit in a manner as to close the upper opening of the housing to allow the light emitted from the light-emitting unit to diffuse to the outside, a cover part disposed on an outer surface of the diffuser and on which a light pattern is formed through scattering of the light transmitted through the diffuser, and a controller configured to receive an operation signal of a vehicle electronic part to control an operation of the light-emitting unit.

First claim

What is claimed is:

1. A vehicle indoor illumination device, comprising:
a housing having an upper opening with an internal space formed therein;
a light-emitting unit disposed on the housing to emit light;
a diffuser disposed outside the light-emitting unit and configured to enclose the upper opening of the housing and allow the light emitted from the light-emitting unit to diffuse outside of the housing; and
a cover part on which a light pattern is formed through scattering of the light transmitted through the diffuser,
wherein the housing is a dashboard or an instrument panel.

2. The vehicle indoor illumination device according to claim 1 , wherein the light-emitting unit comprises:
a substrate within the housing; and
a plurality of light-emitting elements surface-mounted on the substrate.

3. The vehicle indoor illumination device according to claim 2 , wherein each of the light-emitting elements is an RGB LED.

4. The vehicle indoor illumination device according to claim 1 , wherein the light-emitting unit and the diffuser are spaced apart from each other.

5. The vehicle indoor illumination device according to claim 1 , wherein the cover part is attached to the outer surface of the diffuser.

6. The vehicle indoor illumination device according to claim 5 , wherein the cover part is provided with a pattern portion in which a predetermined pattern is formed.

7. The vehicle indoor illumination device according to claim 1 , wherein the internal space comprises:
a first spatial portion disposed on one side in the housing; and
a second spatial portion disposed on the opposite side of the first spatial portion of the housing.

8. The vehicle indoor illumination device according to claim 1 , wherein the diffuser is made of a transparent or translucent material such that the light emitted from the light-emitting unit is transmitted.

9. The vehicle indoor illumination device according to claim 1 , wherein the diffuser made of plastic material is coated with a diffusion solution to form a diffusion coating layer.

10. The vehicle indoor illumination device according to claim 1 , wherein the diffuser made of plastic material is corroded so that light passing through the diffuser is refracted.

11. The vehicle indoor illumination device according to claim 1 , wherein the cover part has a thickness thinner than a thickness of the diffuser.

Assignees

• Hyundai Mobis Co Ltd

Inventors

• Jung Ju Yeon
• Yoo Sang Hun
• Han Chi Yun

Classifications

• F21V19/0025

  the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections · CPC title

• B60Q3/10

  for dashboards · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21V3/049

  Patterns or structured surfaces for diffusing light, e.g. frosted surfaces · CPC title

• F21W2107/10

  for land vehicles · CPC title