US-12623592-B1 - Indirect lighting with light guide for vehicle room

US12623592B1US 12623592 B1US12623592 B1US 12623592B1US-12623592-B1

Abstract

Disclosed is an indirect lighting with a light guide for a vehicle room, including: a light source; a light guide transferring light from the light source; a housing accommodating the light guide therein and mounted on a vehicle internal structure; and a slit formed in the vehicle internal structure, and at least a portion of the light guide may be inserted into the slit to be exposed to an outside, and the exposed portion may be disposed to be headed to a front surface of the vehicle internal structure such that light from the light source is reflected therefrom. Therefore, there is an effect of reducing the manufacturing cost as the quantity of parts is reduced by integrally designing the lens and the light guide.

Inventors

Eung Joo Kim
Seong Gil Jeong
Hyun Cheol Jang

Assignees

ECOPLASTIC CORPORATION

Dates

Publication Date: 20260512
Application Date: 20250318
Priority Date: 20241231

Claims (3)

1 . An indirect lighting apparatus with a light guide for a vehicle room, comprising: a light source; a light guide transferring light from the light source, the light guide including a body having a circular cross-section and a protrusion, having a quadrangular cross-section, that integrally extends from the body; a housing accommodating the light guide therein and configured to be mounted on a vehicle internal structure, wherein the protrusion is inserted into and is coupled to a slit provided in the vehicle internal structure, wherein the protrusion is inserted into the slit to be exposed to an outside, and wherein the protrusion is directed toward an upper portion of the vehicle internal structure such that light from the light source is reflected therefrom.
2 . The indirect lighting apparatus with a light guide for a vehicle room of claim 1 , wherein in the protrusion, light diffusion treatment is performed on the portion thereof exposed to an outside.
3 . The indirect lighting apparatus with a light guide for a vehicle room of claim 1 , wherein the slit has a constant cross section.

Description

CROSS REFERENCE TO RELATED APPLICATION The present application claims priority to Korea Patent Application No. 10-2024-0202286, filed Dec. 31, 2024, the entire contents of which is incorporated herein for all purposes by this reference. FIELD The present disclosure relates to an indirect lighting with a light guide for a vehicle room, more particularly, to an indirect lighting with a light guide for a vehicle room configured to transfer light to a vehicle internal structure using a light guide having a free cross-section and to provide a lighting effect. BACKGROUND Inside a vehicle, various kinds of lightings are installed to serve to satisfy the emotion of the user. These lightings are referred to as mood lamps in general. As application of the mood lamp in an interior of a vehicle increases, a quantity of parts and manufacturing expenses increase. The existing mood lamp configuration has a problem in that the lamp consists of many parts, therefore, assembling steps are complex and expenses increase. In order to solve the problem, it is necessary to develop a new technology capable of reducing the quantity of parts and simplifying a manufacturing process. The existing technology had a limitation in that increased quantity of parts led to cost increase, assembly of many parts led the production efficiency to deteriorate, and a fixed shape of the light guide led a creative design to be limited. Meanwhile, as the prior art, Korea Patent No. 10-2684862 is cited. This patent discloses a mood lamp system for improving aesthetics and implementing various colors and patterns in the lightings inside and outside a vehicle. However, the prior art has a problem in that a manufacturing process is complex due to many components such as a film layer and a distribution layer, etc. In addition, because of this, the manufacturing cost increases. Furthermore, the prior art has a problem in that there is a limitation in implementing various colors and patterns because the shapes of the film layer and the distribution layer are limited. PRIOR ART DOCUMENT Patent Document (Patent Document 1) Korea Patent No. 10-2684862 SUMMARY The present disclosure is conceived from the above-described background, and an object of the present disclosure is to provide a light guide technology having a free cross-section capable of cutting the manufacturing cost and simplifying an assembly process of the mood lamp for an indirect lighting inside a vehicle. In particular, an object of the present disclosure is to provide a mood lamp capable of securing convenience and accuracy in the assembly process by designing a lens and a light guide to be integrated with each other so as to reduce the quantity of parts, and by allowing various shapes and patterns to be implemented through a free cross-section design. The objects of the present disclosure are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by ordinary-skilled persons in the art to which the present disclosure pertains from the following description. One embodiment is an indirect lighting with a light guide for a vehicle room, including: a light source; a light guide transferring light from the light source; a housing accommodating the light guide therein and mounted on a vehicle internal structure; and a slit formed in the vehicle internal structure, and at least a portion of the light guide may be inserted into the slit to be exposed to an outside, and the exposed portion may be disposed to be headed to a front surface of the vehicle internal structure such that light from the light source is reflected therefrom. Meanwhile, the light guide may include: a body having a circular cross-section; and a protrusion protruding from the body and having a quadrangular cross-section, and the protrusion may be inserted into and be coupled to the slit. In addition, in the protrusion, light diffusion treatment may be performed on the portion thereof exposed to an outside. Meanwhile, the vehicle internal structure may include: an upper structure; and a lower structure coupled to a lower portion of the upper structure, and the light guide may be accommodated in the lower structure, and the slit may be opened upward so that light is emitted toward the upper structure. Alternatively, the vehicle internal structure may include: an upper structure; and a lower structure coupled to a lower portion of the upper structure, and the light guide may be accommodated in the upper structure, and the slit may be opened downward so that light is emitted toward the lower structure. Meanwhile, at least some portion of the upper structure may include a surface facing the lower structure. According to the present disclosure, by designing the light guide lens and the light guide to be integrated with each other, there is an effect of reducing the manufacturing cost due to reduced quantity of parts. In addition, there are effects of improving aesthetics because var