CN213577111U

CN213577111U - Light-transmitting atmosphere lamp assembly for automobile ceiling

Info

Publication number: CN213577111U
Application number: CN202022868180.9U
Authority: CN
Inventors: 范晨光; 陈吴斌; 谢繁雄
Original assignee: Ningbo Fuerda Smartech Co Ltd
Current assignee: Ningbo Fuerda Smartech Co Ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-06-29
Anticipated expiration: 2030-12-04

Abstract

The utility model relates to a light-transmitting atmosphere lamp assembly for an automobile ceiling, which comprises a lamp shell, a circuit board assembly, a light guide plate and a reflective film, wherein the circuit board assembly and the light guide plate are fixedly arranged at the bottom of the lamp shell, and the circuit board assembly is arranged at one side face of the light guide plate; the circuit board assembly comprises a circuit board, an LED light source and a connector, wherein the LED light source and the connector are fixed on the circuit board; the light guide plate comprises a light-emitting surface and a backlight surface, and the reflective film is arranged between the backlight surface of the light guide plate and the lamp shell; the backlight surface of the light guide plate is provided with a plurality of laser dots, and the laser dots are combined to form a preset pattern or are arranged in an array. The utility model discloses a printing opacity atmosphere banks spare for car roof, simple structure, make convenient, low cost can set up arbitrary pattern or LOGO according to the demand to on projecting this pattern or LOGO to the fabric of vehicle roof, bring better atmosphere effect for the passenger.

Description

Light-transmitting atmosphere lamp assembly for automobile ceiling

Technical Field

The utility model relates to an automotive filed, concretely relates to printing opacity atmosphere banks spare for car roof.

Background

Conventional interior decorative lights for automobiles are mainly concentrated on the door side and the area of the automobile workbench, the utilization rate of the ceiling is not high, most automobile manufacturers only apply the decorative lights for the ceiling to provide illumination, and the decorative lights for atmosphere rendering are conducted by optical fibers, such as the optical fiber starry sky lights for the ceiling of the los rice. A light source is arranged in an interlayer between a ceiling and a vehicle roof, emergent light of the light source is split by a large number of optical fiber leads, and bright spots with the same color as the light source are generated on the cross section of each optical fiber lead; the brightness of the bright spots is provided by a light source, and then the optical fiber leads are artificially and randomly inserted into the partition plate of the ceiling and the leather and fur on the surface of the partition plate.

However, a large amount of optical fiber wires need a larger ceiling interlayer space, so that the use space inside the automobile is compressed, the comfort level is reduced, in addition, a huge amount of optical fiber wires need to be inserted into a ceiling partition plate, so that the production flow and the time period for manufacturing the ceiling by automobile manufacturers are further improved, the installation is complex, the labor cost and the material cost are very high, and the mode only can form the effect of a starry sky lamp, and the effect is single.

SUMMERY OF THE UTILITY MODEL

For the weak point of avoiding the background art, the utility model provides a printing opacity atmosphere banks spare for car roof, low cost can be with pattern projection to on the vehicle roof fabric.

The utility model provides a printing opacity atmosphere banks spare for car roof, including lamps and lanterns shell, circuit board subassembly, light guide plate and reflective membrane, circuit board subassembly and light guide plate are fixed to be established in lamps and lanterns shell bottom, and circuit board subassembly is established in a side of light guide plate; the circuit board assembly comprises a circuit board, an LED light source and a connector, wherein the LED light source and the connector are fixed on the circuit board; the light guide plate comprises a light-emitting surface and a backlight surface, and the reflective film is arranged between the backlight surface of the light guide plate and the lamp shell; the backlight surface of the light guide plate is provided with a plurality of laser dots, and the laser dots are combined to form a preset pattern or are arranged in an array.

Further, the light guide plate also comprises a light transmitting film, and the light transmitting film is laid on the light emitting surface of the light guide plate; the light-transmitting film comprises a pattern area and a non-pattern area, wherein the pattern area is printed with a light-homogenizing coating, and the light-homogenizing coating is used for homogenizing light rays emitted from the light-emitting surface of the light guide plate; and the non-pattern area is printed with a shading coating which is used for shading the light emitted from the light-emitting surface of the light guide plate.

The utility model discloses a printing opacity atmosphere banks spare for car roof, simple structure, make convenient, low cost can set up arbitrary pattern or LOGO according to the demand to on projecting this pattern or LOGO to the fabric of vehicle roof, bring better atmosphere effect for the passenger.

Drawings

FIG. 1 is an exploded view of an embodiment light transmissive atmosphere lamp assembly.

Detailed Description

The invention is further described with reference to the following drawings and specific examples.

In an embodiment, referring to fig. 1, a light-transmitting atmosphere lamp assembly for an automobile ceiling includes a lamp housing 1, a circuit board assembly 2, a light guide plate 3, a reflective film 4 and a light-transmitting film 5, wherein the circuit board assembly 2 and the light guide plate 3 are fixedly arranged at the bottom 1 of the lamp housing, and the circuit board assembly 2 is arranged at one side surface of the light guide plate 3; the circuit board assembly 2 comprises a circuit board, an LED light source and a connector, wherein the LED light source and the connector are fixed on the circuit board; the light guide plate 3 is preferably a sub-grid plate and comprises a light-emitting surface and a backlight surface, and the reflective film 4 is arranged between the backlight surface of the light guide plate 3 and the lamp shell and reflects light emitted by the backlight surface of the light guide plate back; the backlight surface of the light guide plate 3 is provided with a plurality of laser dots, and the laser dots are combined to form a preset pattern or are arranged in an array; the light-transmitting film 5 is laid on the light-emitting surface of the light guide plate 3; the light-transmitting film 5 comprises a pattern area and a non-pattern area, wherein the pattern area is printed with a light-homogenizing coating, and the light-homogenizing coating is used for homogenizing light rays emitted from the light-emitting surface of the light guide plate 3; the non-pattern area is printed with a shading coating, the shading coating is used for shading light rays emitted from the light emitting surface of the light guide plate 3, and the coating can be ink, paint or coatings made of other materials.

The principle of the light-transmitting atmosphere lamp assembly of the embodiment is as follows: light generated by the LED light source on the side surface of the light guide plate 3 enters from the side surface of the light guide plate 3 and propagates in a zigzag manner inside the light guide plate 3, and when the light irradiates on laser mesh points of laser points distributed on the backlight surface of the light guide plate 3, diffuse reflection and refraction are generated, so that the light is emitted from the light emitting surface. The light forms the pattern has two ways, firstly, make every laser network point combine and form the predetermined pattern directly, the light is launched from every laser network point and form the predetermined luminous pattern naturally, the advantage of this scheme is that the process is few with low costs, the disadvantage is that the requirement for light guiding plate 3 is high, if there are flaws such as the black spot, then these flaw position may also appear the reflected light, especially the larger the area of light guiding plate has the probability of the flaw; secondly, the laser dots are arranged in an array, a light-transmitting film 5 covers the light-emitting surface of the light guide plate 3, a light-homogenizing coating is printed on a pattern area on the light-transmitting film 5, a light-shading coating is printed on a non-pattern area, and light can only irradiate the outside through the light-homogenizing coating after being emitted from the light-emitting surface of the light guide plate 3 to form a preset light-emitting pattern.

The total thickness of the light-transmitting atmosphere lamp assembly is small, the light-transmitting atmosphere lamp assembly is only 5mm, the occupied space is small, the light-transmitting atmosphere lamp assembly can be installed in an interlayer gap between the automobile ceiling and the automobile roof through buckles or other connecting and fixing modes, and the light-emitting surface of the light guide plate 3 faces to the fabric of the ceiling. When the LED light source is not lightened, no matter how the light of the external environment is, passengers can not see the ceiling fabric and only the ceiling but the existence of the light-transmitting atmosphere lamp component due to the shielding of the ceiling fabric; when the LED light source is lighted and is at night, the light can form a preset pattern on the ceiling fabric through the ceiling fabric. The light-transmitting atmosphere lamp assembly is simple in structure, convenient to manufacture and low in cost, and is worthy of being widely popularized and applied in the field of automobiles.

Although the present invention has been described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims.

Claims

1. A light-transmitting atmosphere lamp assembly for an automobile ceiling, characterized in that: the lamp comprises a lamp shell, a circuit board assembly, a light guide plate and a reflective film; the circuit board assembly and the light guide plate are fixedly arranged at the bottom of the lamp shell, and the circuit board assembly is arranged on one side surface of the light guide plate; the circuit board assembly comprises a circuit board, an LED light source and a connector, wherein the LED light source and the connector are fixed on the circuit board; the light guide plate comprises a light-emitting surface and a backlight surface, and the reflective film is arranged between the backlight surface of the light guide plate and the lamp shell; the backlight surface of the light guide plate is provided with a plurality of laser dots, and the laser dots are combined to form a preset pattern or are arranged in an array.

2. A light-transmitting ambient light assembly for an automotive headliner as recited in claim 1, wherein: the light guide plate is characterized by also comprising a light-transmitting film, wherein the light-transmitting film is laid on the light-emitting surface of the light guide plate; the light-transmitting film comprises a pattern area and a non-pattern area, wherein the pattern area is provided with a light-homogenizing coating, and the light-homogenizing coating is used for homogenizing light rays emitted from the light-emitting surface of the light guide plate; and the non-pattern area is printed with a shading coating which is used for shading the light emitted from the light-emitting surface of the light guide plate.