Lighting device for vehicle

Abstract

To provide a lighting device for a vehicle capable of suppressing light shielding due to intrusion of foreign matter from a gap between a bezel and a lens, and fall-off of a component caused by catching a finger, a pin or the like.SOLUTION: The vehicular lighting system 1 includes a bezel 10 fixed to a roof panel 2, and a substrate 20 on which a LED21 for spot lighting and a LED22 for indirect lighting are arranged. The vehicular lighting system 1 includes an annular light guide 30 for propagating light from a LED22 disposed on a substrate 20, and a reflector 40 for condensing the light from the LED21 disposed on the substrate 20. The vehicle lighting device 1 includes the lens 50 disposed on the front side of the bezel 10 so as to cover the substrate 20, the light guide 30, and the reflector 40, and no gap is formed between the bezel 10 and the lens 50.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a vehicle lighting device. [Background technology]

[0002] Some vehicles, such as automobiles, are fitted with a vehicle lighting device also known as an LED unit (see Patent Document 1). In the vehicle lighting device (indirect lighting device) described in Patent Document 1, the panel portion is arranged facing the passenger in the front passenger seat and is configured by combining an upper panel as one panel member and a lower panel as the other panel member. A convex portion is provided on the lower panel, and a concave portion into which the convex portion is inserted and an opposing portion opposing the convex portion are provided in a lower locking portion of the upper panel. A shielding portion is provided at a position between the opposing portion and the lens. At the position of the concave portion where the convex portion fits, these fittings are said to make it difficult for leaking light from the lens to leak to the outside through the gap between the panel members. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-201111 Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional vehicle lighting devices, there are gaps in the indirect lighting section that guides light from the light source, which can cause light blocking due to foreign matter entering through the gap, or components to fall off due to fingers or pins or the like getting caught in the gap.

[0005] The present invention has been made in consideration of the problems inherent in the prior art, and an object of the present invention is to provide a vehicle lighting device that can prevent light blocking due to foreign matter entering through the gap between the bezel and the lens, and can prevent components from falling off due to fingers, pins, or the like getting caught in the gap. [Means for solving the problem]

[0006] A vehicle lighting device according to one embodiment of the present invention comprises a bezel fixed to a vehicle body, a substrate on which a first light source for spot lighting and a second light source for indirect lighting are arranged, an annular light guide that propagates light from the second light source arranged on the substrate, a reflector that collects light from the first light source arranged on the substrate, and a lens arranged on the front side of the bezel so as to cover the substrate, the light guide, and the reflector, and there is no gap between the bezel and the lens. [Effects of the Invention]

[0007] According to the present invention, a vehicle lighting device can be provided that can prevent light blocking due to foreign matter entering through the gap between the bezel and the lens, and prevent components from falling off due to fingers or pins, etc. getting caught on them. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view illustrating an example of a vehicle lighting device according to an embodiment of the present invention. [Figure 2] 1 is a perspective view of a vehicle lighting device as viewed from the rear side; [Figure 3] FIG. 2 is an exploded perspective view of the vehicle lighting device. [Figure 4] FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. [Figure 5] FIG. 5 is a partially enlarged cross-sectional view of part B shown in FIG. [Figure 6] FIG. 2 is a perspective view of the substrate as seen from the rear side. [Figure 7] FIG. 2 is a perspective view of the lens as seen from the rear side. [Figure 8] FIG. 10 is a perspective view of a lens according to another embodiment, as viewed from the rear side. [Figure 9] FIG. 10 is an enlarged cross-sectional view of a main part of a vehicle lighting device according to another embodiment. [Figure 10] FIG. 10 is a perspective view of a lens according to yet another embodiment, as viewed from the rear side. [Figure 11]FIG. 10 is an enlarged cross-sectional view of a main part of a vehicle lighting device according to yet another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, the vehicle lighting device according to the present embodiment will be described in detail with reference to the drawings. Note that the dimensional proportions in the drawings are exaggerated for the sake of convenience and may differ from the actual proportions.

[0010] The vehicle lighting device 1 according to this embodiment can be applied to an LED unit for a vehicle such as an automobile.

[0011] As shown in FIGS. 1 to 5, the vehicle lighting device 1 includes a bezel 10, a substrate 20, a light guide 30, a reflector 40, and a lens 50.

[0012] The bezel 10 is fixed to the vehicle body (for example, the ceiling panel 2) (see FIGS. 4 and 5). The bezel 10 integrally comprises a circular frame-shaped bezel main body 11, a back portion 12 formed on the back side of the bezel main body 11, and a flange portion 13 formed on the front side of the bezel main body 11. The back portion 12 of the bezel 10 is formed with a connector housing portion 14 that houses a PCB connector 24 (described later), and the connector housing portion 14 is formed with an opening 15 through which a part of the PCB connector 24 housed in the connector housing portion 14 is exposed. In addition, the back portion 12 of the bezel 10 is formed with a locking claw portion 16 that locks with a locking piece portion 53 (see FIG. 7) of a lens 50 (described later).

[0013] An LED 21 as a first light source for spot lighting and an LED 22 as a second light source for indirect lighting are mounted on the front side of the substrate 20. In addition, electronic components 23 for causing the LEDs 21 and 22 to emit light, such as a so-called PCB connector 24, are mounted on the substrate 20 (see FIGS. 3 and 6). A plurality of LEDs 21 for spot lighting (five in this embodiment) are arranged, and a plurality of LEDs 22 for indirect lighting (two in this embodiment) are also arranged. The LEDs 21 and 22 each emit light by electricity supplied from a power source on the vehicle side through the PCB connector 24.

[0014] The light guide 30 is formed in an annular shape and is a component for propagating light L from the LEDs 22 for indirect lighting mounted on the substrate 20 all around the vehicle lighting device 1. The light guide 30 is formed with a light receiving portion 31 facing the LEDs 22 for indirect lighting.

[0015] The reflector 40 is a component that collects light from the spot lighting LEDs 21 mounted on the substrate 20 and efficiently transmits the light to the lens 50. Holes 41 are formed in the reflector 40 at locations corresponding to the spot lighting LEDs 21.

[0016] The lens 50 is disposed on the front side of the bezel 10 so as to cover the substrate 20, the light guide 30, and the reflector 40. The lens 50 is configured to have a plate-shaped lens body 51 through which light from the spot lighting LED 21 passes, and a cylindrical lens body 52 formed on the rear side of the lens body 51 and through which light L from the indirect lighting LED 22 passes. In addition, a locking piece portion 53 (see FIG. 7) that is locked to the locking claw portion 16 of the bezel 10 is formed on the inner periphery of the lens body 51.

[0017] In this embodiment, rear end face 52a of cylindrical lens body 52 is in surface contact with front end face 13a of bezel 10, and no gaps or openings through which indirect light can pass are formed between bezel 10 and lens 50 (see FIG. 5). That is, in this embodiment, lens 50 closes the gap through which indirect light can pass, thereby preventing light blocking due to foreign matter entering through the gap and preventing components from falling off due to fingers F (see FIG. 5) or pins or the like getting caught in the gap.

[0018] The components (substrate 20, light guide 30, reflector 40, and lens 50) are assembled to the bezel 10 to form the vehicle lighting device 1 shown in FIGS.

[0019] The substrate 20, the light guide 30, and the reflector 40 may be integrated in advance, and the integrated assembly may be assembled to the bezel 10. Alternatively, the substrate 20, the light guide 30, and the reflector may be assembled to the bezel 10 separately.

[0020] In such a vehicle lighting device 1, light from the LED 21 for spot lighting is irradiated as direct light toward the vehicle through the lens body 51 of the lens 50. On the other hand, light L from the LED 22 for indirect lighting is irradiated as indirect light toward the vehicle through the light guide 30 and the cylindrical lens body 52 of the lens 50 (see FIG. 4).

[0021] In conventional vehicle lighting devices, if a gap is formed between the lens and the bezel, there is a possibility that foreign matter may enter through the gap, blocking light, or that a component may fall off if a finger, pin, or the like gets caught in the gap. In the vehicle lighting device 1 according to this embodiment, the lens 50 closes the gap, making it possible to prevent foreign matter from entering and accidental catching.

[0022] As described above, the vehicle lighting device 1 according to this embodiment includes a bezel 10 fixed to the vehicle body (ceiling panel 2) and a substrate 20 on which a first light source (LED 21) for spot lighting and a second light source (LED 22) for indirect lighting are arranged. The vehicle lighting device 1 includes an annular light guide 30 that propagates light L from the second light source (LED 22) arranged on the substrate 20, and a reflector 40 that collects light from the first light source (LED 21) arranged on the substrate 20. The vehicle lighting device 1 includes a lens 50 arranged on the front side of the bezel 10 so as to cover the substrate 20, the light guide 30, and the reflector 40, and no gap is formed between the bezel 10 and the lens 50.

[0023] In conventional vehicle lighting devices, if a gap is formed between the lens and the bezel, there is a possibility that foreign matter may enter through the gap, blocking light, or that a component may fall off if a finger, pin, or the like gets caught in the gap. In the vehicle lighting device 1 according to this embodiment, by closing the gap between the bezel 10 and the lens 50, it is possible to prevent foreign matter from entering and accidental catching.

[0024] As described above, according to this embodiment, a vehicle lighting device 1 can be provided that can prevent light blocking due to foreign matter entering through the gap between the bezel 10 and the lens 50, and prevent components from falling off due to fingers F or pins or the like getting caught on them.

[0025] In the vehicle lighting device 1, the lens 50 may have a plate-shaped lens body 51 through which light from the first light source (LED 21) passes, and a cylindrical lens body 52 formed on the back side of the lens body 51 and through which light L from the second light source (LED 22) passes. An end face 52a on the back side of the cylindrical lens body 52 may be in surface contact with an end face 13a on the front side of the bezel 10.

[0026] In this embodiment, rear end face 52a of cylindrical lens body 52 is in surface contact with front end face 13a of bezel 10, and no gaps or openings through which indirect light can pass are formed between bezel 10 and lens 50 (see FIG. 5). That is, in this embodiment, lens 50 closes the gap through which indirect light can pass, thereby preventing light blocking due to foreign matter entering through the gap and preventing components from falling off due to fingers F (see FIG. 5) or pins or the like getting caught in the gap.

[0027] [Another embodiment] Next, a vehicle lighting device according to another embodiment will be described. Note that components that are substantially the same as those in the vehicle lighting device 1 described above will be assigned the same reference numerals and descriptions thereof will be omitted.

[0028] 8 and 9, in the vehicle lighting device 1A, an anti-reflection processed portion 60 is formed on an end surface 52a on the rear side of the cylindrical lens body 52 of the lens 50. The anti-reflection processing can be performed by lens cutting, painting, or the like.

[0029] By applying anti-reflective treatment such as lens cutting or painting to the outer peripheral edge of the lens 50 (the end surface 52a on the back side of the cylindrical lens body 52), it is possible to prevent the light L from the LED 22 for indirect lighting from being reflected, and to prevent the lens 50 from appearing to be shining directly (see Figure 9).

[0030] In the vehicle lighting device 1A, an end surface 52a of the lens 50 on the rear side of the cylindrical lens body 52 may be formed with an anti-reflection processed portion 60 that has been subjected to anti-reflection processing.

[0031] By applying anti-reflective treatment such as lens cutting or painting to the outer peripheral edge of the lens 50 (the end surface 52a on the back side of the cylindrical lens body 52), it is possible to prevent the lens 50 from appearing to be shining directly, thereby improving the design of the vehicle lighting device 1.

[0032] As shown in FIGS. 10 and 11, in vehicle lighting device 1B, end face 52a on the rear side of cylindrical lens body 52 of lens 50 is formed with diffused reflection processed portion 70 that has been subjected to diffused reflection processing.

[0033] By applying a diffuse reflection treatment to the outer peripheral edge of the lens 50 (the end surface 52a on the back side of the cylindrical lens body 52), the light L from the LED 22 for indirect lighting is diffused, making the outer peripheral edge of the lens 50 appear to sparkle (see Figure 11).

[0034] In the vehicle lighting device 1B, an end surface 52a of the lens 50 on the rear side of the cylindrical lens body 52 may be formed with a diffused reflection processed portion 70 that has been subjected to diffused reflection processing.

[0035] By applying a diffuse reflection treatment to the outer peripheral edge of the lens 50 (the end surface 52a on the back side of the cylindrical lens body 52), the outer peripheral edge of the lens 50 can be made to appear to sparkle, thereby improving the presentation of the indirect light emitted from the vehicle lighting device 1B.

[0036] Although the present embodiment has been described above, the present embodiment is not limited to this, and various modifications are possible within the scope of the gist of the present embodiment. [Explanation of symbols]

[0037] 1. Vehicle lighting devices 2 Ceiling panels 10 Bezel 13a End face 20 PCB 21 LEDs for spot lighting 22 LEDs for indirect lighting 30 Light Guide 40 Reflector 50 lenses 51 Lens body 52 Cylindrical lens body 52a End face 60 Non-reflective processing area 70 Diffuse reflection processing section L light

Claims

1. A bezel fixed to the vehicle body, a substrate on which a first light source for spot lighting and a second light source for indirect lighting are disposed; an annular light guide disposed on the substrate for propagating light from the second light source; a reflector disposed on the substrate for collecting light from the first light source; a lens disposed on the front side of the bezel so as to cover the substrate, the light guide, and the reflector, There is no gap between the bezel and the lens. Vehicle lighting device.

2. The lens is a plate-shaped lens body through which light from the first light source passes; a cylindrical lens body formed on the rear side of the lens body and through which light from the second light source passes, The rear end surface of the cylindrical lens body is in surface contact with the front end surface of the bezel. The vehicle lighting device according to claim 1 .

3. 3. The vehicle lighting device according to claim 2, wherein an anti-reflection processed portion is formed on an end surface of the lens on the rear side of the cylindrical lens body.

4. 3. The vehicle lighting device according to claim 2, wherein a diffused reflection processed portion is formed on an end surface of the lens on the rear side of the cylindrical lens body.

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