CN219346283U

CN219346283U - Lighting device and motor vehicle

Info

Publication number: CN219346283U
Application number: CN202320339284.1U
Authority: CN
Inventors: 王伟; 陈思; 周荣
Original assignee: Valeo Ichikoh China Auto Lighting Co Ltd
Current assignee: Valeo Ichikoh China Auto Lighting Co Ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-07-14
Anticipated expiration: 2033-02-23

Abstract

The present utility model provides a light emitting device, comprising: a first light emitting assembly for a first light function comprising a first light source and a first reflector configured to receive and reflect light from the first light source; a second light emitting assembly for a second light function comprising a second light source and a second reflector configured to receive and reflect light rays from the second reflector; a lens including a first projection portion and a second projection portion arranged adjacently along a main extension direction thereof, the first projection portion configured to project light from the first reflector, the second projection portion configured to project light from the second reflector; and a carrier configured to carry the first light emitting assembly and the second light emitting assembly such that the second light emitting assembly is integrally located at one side of the first light emitting assembly in the main extension direction. The utility model also relates to a motor vehicle.

Description

Lighting device and motor vehicle

Technical Field

Embodiments of the present utility model relate generally to the field of lighting and/or signaling, and more particularly, to a light emitting device and a motor vehicle.

Background

Headlamps of motor vehicles, also known as headlamps, are used to illuminate the road in front of the vehicle in low visibility or at night. These headlamps are mainly used to create two types of illumination modes, namely a low beam mode and a high beam mode. In low beam mode, the beam has a very sharp cut-off line, which provides illumination without disturbing other road participants. In the high beam mode, the vehicle can be illuminated for a greater distance in front of the vehicle. The two modes can be switched manually or automatically according to actual conditions.

In the related art, a reflector is generally employed to realize low beam and high beam functions, and the low beam reflector and the high beam reflector are arranged in a vertical direction orthogonal to a horizontal exit direction, thereby resulting in a large size of the headlamp module in the vertical direction (i.e., a vehicle height direction), so that the needs of customers are not satisfied.

Disclosure of Invention

It is an object of the present utility model to address or overcome at least one of the above and other problems and disadvantages in the prior art.

According to an aspect of the present utility model, there is provided a light emitting device including: a first light emitting assembly for a first light function, the first light emitting assembly comprising a first light source and a first reflector configured to receive and reflect light from the first light source; a second light emitting assembly for a second light function, the second light emitting assembly comprising a second light source and a second reflector configured to receive and reflect light from the second reflector; a lens including a first projection portion and a second projection portion arranged adjacently along a main extension direction thereof, the first projection portion configured to project light from the first reflector, the second projection portion configured to project light from the second reflector; and a carrier configured to carry the first light emitting assembly and the second light emitting assembly such that the second light emitting assembly is integrally located at one side of the first light emitting assembly in the main extension direction.

In some embodiments, the first and second light emitting assemblies are carried on two opposite mounting surfaces of the carrier, respectively.

In some embodiments, the carrier is generally zigzagged and includes an intermediate portion separating the first and second light emitting assemblies.

In some embodiments, the carrier is formed as a single piece.

In some embodiments, the carrier is configured such that the first light source and the second light source are located at substantially the same level.

In some embodiments, the focal point of the first projection portion is at or near the rear edge of the reflective surface of the first reflector and/or the focal point of the second projection portion is at or near the rear edge of the reflective surface of the second reflector.

In some embodiments, the first light function and the second light function each include one or more of a high beam function, a low beam function, a signal function.

In some embodiments, the light emitting device further comprises a third light emitting component carried on the same mounting surface of the carrier as the first light emitting component; the third light emitting assembly comprises a third light source and a third reflector, wherein the third light source and the first light source are alternatively activated, the third reflector is positioned between the first reflector and the first projection portion of the lens, and the third light source is positioned between the first light source and the third reflector; the third reflector is configured to reflect light from the third light source toward the first projection portion of the lens.

In some embodiments, the third reflector is formed as a single component with the first reflector.

In some embodiments, the lens is formed as a single component and includes an extension piece extending toward the interior of the light emitting device, the extension piece being snapped to the intermediate portion of the carrier.

In some embodiments, the extension piece is also snapped to the first reflector or the second reflector.

According to a further aspect of the present utility model, an embodiment also provides a motor vehicle comprising the above-described light emitting device.

Other objects and advantages of the present utility model will become apparent and a thorough understanding of the present utility model will be obtained by reference to the following detailed description of the utility model which is set forth in connection with the accompanying drawings.

Drawings

These and/or other aspects, features and advantages of the present utility model will become apparent from the following description of illustrative embodiments thereof, which is to be read in connection with the accompanying drawings, in which:

fig. 1 schematically shows a perspective view of a light emitting device 1 according to an exemplary embodiment of the present utility model;

fig. 2 schematically shows a bottom view of a light emitting device 1 according to an exemplary embodiment of the utility model;

fig. 3 schematically shows a perspective view of a carrier 50 according to an exemplary embodiment of the utility model;

fig. 4 schematically shows a perspective view of a first light emitting assembly 2 and a second light emitting assembly 3 according to an exemplary embodiment of the present utility model;

fig. 5 schematically shows a cross-sectional view of the light emitting device 1 of fig. 1 along the line A-A.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. In the present specification, the same or similar parts are denoted by the same or similar reference numerals. The following description of embodiments of the utility model with reference to the drawings is intended to illustrate the general disclosed concept of the utility model and should not be taken as limiting the utility model.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in the drawings in order to simplify the drawings.

Fig. 1 schematically shows a perspective view of a light emitting device 1 according to an exemplary embodiment of the present utility model, fig. 2 schematically shows a bottom view of the light emitting device 1 according to an exemplary embodiment of the present utility model, fig. 3 schematically shows a perspective view of a carrier 50 according to an exemplary embodiment of the present utility model, fig. 4 schematically shows perspective views of a first light emitting assembly 2 and a second light emitting assembly 3 according to an exemplary embodiment of the present utility model, and fig. 5 schematically shows a cross-sectional view of the light emitting device 1 along line A-A in fig. 1.

The light emitting device 1 according to the embodiment of the present utility model includes a first light emitting component 2 for a first light function, a second light emitting component 3 for a second light function, a carrier 50, and a lens 60, wherein the first light emitting component 2 includes a first light source 11 and a first reflector 20, the first light source 11 emits light for the first light function toward the first reflector 20, and the first reflector 20 reflects light from the first light source 11 toward a first projection portion 61 of the lens 60; the second light emitting assembly 3 includes a second light source 31 and a second reflector 40, the second light source 31 emitting light for a second light function toward the second reflector 40, the second reflector 40 emitting light from the second light source 31 toward the second projection portion 62 of the lens 60.

In an embodiment of the utility model, the first light function and the second light function comprise one or more of a low beam function, a high beam function, a signal function (including but not limited to a daytime running light function, a turn signal function, a position light function, etc.), respectively, for example, but not limited to, the first light function comprises a high beam function, the second light function comprises a low beam function, or the first light function comprises a daytime running light function, and the second light function comprises a low beam function.

The lens 60 includes, along its main extending direction (left-right direction in fig. 1 and 2), a first projection portion 61 and a second projection portion 62 adjacently arranged, wherein the first projection portion 61 is for projecting light from the first reflector 20 to form a light beam for the first light function, and the second projection portion 62 is for projecting light from the second reflector 40 to form a light beam for the second light function. Preferably, the lens 60 is formed as a single member, and thus the first projection portion 61 and the second projection portion 62 are integrally formed.

The carrier 50 is used to carry the first light emitting assembly 2 and the second light emitting assembly 3 such that both are arranged substantially horizontally along the main extension direction of the lens, in other words, the second light emitting assembly 3 is located entirely on one side of the first light emitting assembly 2 in the main extension direction of the lens. Compared to the prior art in which two kinds of light emitting modules for different light functions are arranged in the vertical direction (i.e., the up-down direction in fig. 1), the two kinds of light emitting modules are arranged horizontally in the embodiment of the present utility model, the size of the light emitting device 1 in the vertical direction can be greatly reduced.

Further, as shown in fig. 3 and 4, the carrier 50 comprises two opposite mounting surfaces, namely a first mounting surface 51 and a second mounting surface 52, wherein the first mounting surface 51 is for carrying the first light emitting assembly 2 and the second mounting surface 52 is for carrying the second light emitting assembly 3. In particular, the first light source 11 is mounted on a first printed circuit board 10, the first printed circuit board 10 being arranged between the first mounting surface 51 and the first reflector 20, the first printed circuit board 10 and the first reflector 20 being fixedly connected to said first mounting surface 51 via suitable fixing means, for example, but not limited to, by means of a threaded connection and/or a snap connection. The second light source 31 is mounted on a second printed circuit board 30, the second printed circuit board 30 being arranged between the second mounting surface 52 and the second reflector 40, the second printed circuit board 30 and the second reflector 40 being fixedly connected to said second mounting surface 52 via suitable fixing means, for example, but not limited to, by means of a screw connection and/or a snap connection.

The advantage of the two light emitting assemblies being carried on two opposite mounting surfaces of the carrier 50 is that in case the light distribution of the first light emitting assembly 2 is above the light distribution of the second light emitting assembly 3 such that light from the first light source 11 is reflected by the first reflector 20 therebelow and projected by the lens 60, the first light function may have a wider light pattern in the vertical direction, which is advantageous in case the first light function requires a wider illumination range, for example, but not limited to, in case the first light function comprises a high beam function. If the first light emitting assembly 2 and the second light emitting assembly 3 are carried on the same mounting surface of the carrier 50, the first light function will have a narrower light pattern in the vertical direction, failing to meet the requirement of a wide irradiation range.

Preferably, as shown in fig. 3, the carrier 50 has a zigzag shape as a whole, in other words, the first and

second mounting surfaces

51 and 52 each present a zigzag surface, and the first and second

light emitting assemblies

2 and 3 are respectively carried in left and right L-shaped spaces of the zigzag carrier 50. The zigzag carrier 50 has an advantage in that the size of the light emitting device 1 in the vertical direction can be further compressed to be more compact in the vertical direction. The carrier 50 comprises an intermediate portion 53, i.e. a zigzag bend, which also serves to separate the first and second

light emitting assemblies

2, 3, preventing light of both light functions from interfering with each other. In addition, the carrier 50 is formed with a plurality of fins 54 on both the first and

second mounting surfaces

51 and 52 to improve heat dissipation efficiency.

Preferably, as shown in fig. 4, the zigzag carrier 50 is further configured such that the first light source 11 or the first printed circuit board 10 and the second light source 31 or the second printed circuit board 30 are at almost the same horizontal level, which may further reduce the size of the light emitting device 1 in the vertical direction.

Preferably, the carrier 50 is formed as a single part to simplify the process and improve the production efficiency.

As shown in fig. 2 and 4, for the first light emitting assembly 2, the first reflector 20 includes a first reflecting cavity 21, a second reflecting cavity 22, and a third reflecting cavity 23, each reflecting cavity being formed with a plurality of reflecting surfaces arranged side by side, wherein light rays from the first reflecting cavity 21 of the first reflector 20 are projected by a first section 61A of the first projection portion 61 of the lens 60, light rays from the second reflecting cavity 22 of the first reflector 20 are projected by a second section 61B of the first projection portion 61 of the lens 60, and light rays from the third reflecting cavity 23 of the first reflector 20 are projected by a third section 61C of the first projection portion 61 of the lens 60. In order to obtain a clear cut-off line of the light distribution of the first light function, the focal point of the first projection portion 61 of the lens 60 is at or near the rear edge of the reflective surface of the first reflector 20, e.g. the focal point of the first section 61A of the first projection portion 61 is at or near the rear edge 21E of the reflective surface of the first reflective cavity 21 of the first reflector 20, the focal point of the second section 61B of the first projection portion 61 is at or near the rear edge 22E of the reflective surface of the second reflective cavity 22 of the first reflector 20, and the focal point of the third section 61C of the first projection portion 61 is at or near the rear edge 23E of the reflective surface of the third reflective cavity 23 of the first reflector 20. In addition, in order to prevent light rays from the respective reflecting cavities from interfering with each other, the carrier 50 further includes a baffle 55 disposed between adjacent reflecting cavities.

As shown in fig. 1, 2 and 4, for the second light emitting assembly 3, the second reflector 40 includes a first reflective cavity 41, a second reflective cavity 42, and a third reflective cavity 43, each of which is formed with a plurality of reflective surfaces arranged side by side, wherein light rays from the first reflective cavity 41 of the second reflector 40 are projected by a first section 62A of the second projection portion 62 of the lens 60, light rays from the second reflective cavity 42 of the second reflector 40 are projected by a second section 62B of the second projection portion 62 of the lens 60, and light rays from the third reflective cavity 43 of the second reflector 40 are projected by a third section 62C of the second projection portion 62 of the lens 60. In order to obtain a clear cut-off line of the light distribution of the second light function, the focal point of the second projection part 62 of the lens 60 is at or near the rear edge of the reflective surface of the second reflector 40, e.g. the focal point of the first section 62A of the second projection part 62 is at or near the rear edge 41E of the reflective surface of the first reflective cavity 41 of the second reflector 40, the focal point of the second section 62B of the second projection part 62 is at or near the rear edge 42E of the reflective surface of the second reflective cavity 42 of the second reflector 40, and the focal point of the third section 62C of the second projection part 62 is at or near the rear edge 43E of the reflective surface of the third reflective cavity 43 of the second reflector 40. In addition, in order to prevent light rays from the respective reflecting cavities from interfering with each other, the carrier 50 further includes a baffle 55 disposed between adjacent reflecting cavities.

It is to be understood that the number of reflecting cavities and the number of reflecting surfaces of the first and

second reflectors

20 and 40 are not limited thereto, and may be set according to actual needs.

Further, as shown in fig. 5, the light emitting device 1 further comprises a third light emitting assembly, which is also carried on the first mounting surface 51 of the carrier 50, in particular the third light emitting assembly comprises a third light source 12 and a third reflector 70, wherein the third light source 12 may be mounted on the first printed circuit board 10 together with the first light source 11 or may also be mounted on a different printed circuit board and between the first light source 11 and the third reflector 70. The third reflector 70 is located between the first reflector 20 and the first projection portion 61 of the lens for receiving and reflecting light from the third light source 12 towards the first projection portion 61 of the lens 60. As shown in fig. 4, the third reflector 70 includes a first reflecting surface 71, a second reflecting surface 72, and a third reflecting surface 73, wherein the first reflecting surface 71 reflects light toward the first section 61A of the first projection portion, the second reflecting surface 72 reflects light toward the second section 61B of the first projection portion, and the third reflecting surface 73 reflects light toward the third section 61C of the first projection portion.

The third light source 12 and the first light source 11 are alternatively activated, the third light source 12 may provide the background light or the ambient light of the second light function, specifically, in the case that the second light source 31 for the second light function is turned on and the first light source 11 for the first light function is turned off, the light emitting surface of the light emitting device 1 is only partially lighted, and if the third light source 12 is turned on, the light thereof is projected by the first projection portion 61 after being reflected by the third reflector 70, thereby making the entire light emitting surface of the light emitting device 1 lighted, and greatly improving the aesthetic appearance of the lighting effect.

Preferably, the third reflector 70 and the first reflector 20 are formed as a single part to simplify the manufacturing process and improve efficiency.

Further, as shown in fig. 1 and 3, the lens 60 may be fixedly coupled to the carrier 50, for example, both ends of the lens 60 in the main extension direction thereof may be screwed to the carrier 50. In addition, the lens 60 may further include an extension piece 63 extending toward the inside of the light emitting device 1 at an upper position between the first projection portion 61 and the second projection portion 62, for being snapped into the intermediate portion 53 of the carrier 50, specifically, the intermediate portion 53 may include a snap-fit piece 56, and correspondingly, the extension piece 63 includes a snap-fit groove (not shown), and when the lens 60 is mounted, the snap-fit piece 56 may be snapped into the snap-fit groove substantially along the light emitting direction of the light emitting device 1, thereby further fixing the lens 60. In addition, as shown in fig. 1, the extension piece 63 may also be snapped to the second reflector 40. It will be appreciated that the extension piece 63 may also be provided at a position below the lens 60, correspondingly, the latch 56 may also be provided below the intermediate portion 53, and the extension piece 63 may also be latched to the first reflector 10.

Embodiments of the present utility model also provide a motor vehicle comprising a light emitting device 1 as described in any of the embodiments above.

Although the present utility model has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of the preferred embodiments of the utility model and are not to be construed as limiting the utility model. The dimensional proportions in the drawings are illustrative only and should not be construed as limiting the utility model.

Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

Claims

1. A light emitting device (1), characterized by comprising:

a first light emitting assembly (2) for a first light function, the first light emitting assembly (2) comprising a first light source (11) and a first reflector (20), the first reflector (20) being configured to receive and reflect light from the first light source (11);

a second light emitting assembly (3) for a second light function, the second light emitting assembly (3) comprising a second light source (31) and a second reflector (40), the second reflector (40) being configured to receive and reflect light rays from the second reflector (40);

a lens (60), the lens (60) comprising, along its main extension, a first projection portion (61) and a second projection portion (62) arranged adjacently, the first projection portion (61) being configured to project light from the first reflector (20), the second projection portion (62) being configured to project light from the second reflector (40);

-a carrier (50), the carrier (50) being configured to carry the first light emitting assembly (2) and the second light emitting assembly (3) such that the second light emitting assembly (3) is entirely located at one side of the first light emitting assembly (2) in the main extension direction.

2. The light emitting device (1) according to claim 1, characterized in that the first light emitting component (2) and the second light emitting component (3) are carried on two opposite mounting surfaces of the carrier (50), respectively.

3. The lighting device (1) according to claim 2, characterized in that the carrier is overall Z-shaped and comprises an intermediate portion (53) for separating the first lighting assembly (2) and the second lighting assembly (3).

4. A light emitting device (1) according to claim 3, characterized in that the carrier (50) is formed as a single component.

5. A light emitting device (1) according to claim 3, characterized in that the carrier (50) is configured such that the first light source (11) and the second light source (31) are located at substantially the same level.

6. The light emitting device (1) according to any one of claims 1 to 5, characterized in that the focus of the first projection (61) is at or near the rear edge of the reflective surface of the first reflector (20) and/or the focus of the second projection (62) is at or near the rear edge of the reflective surface of the second reflector (40).

7. The light emitting device (1) according to claim 6, wherein the first light function and the second light function comprise one or more of a high beam function, a low beam function, a signal function, respectively.

8. The light emitting device (1) according to any one of claims 1 to 5, further comprising a third light emitting assembly carried on the same mounting surface of the carrier (50) as the first light emitting assembly (2);

the third light emitting assembly comprises a third light source (12) and a third reflector (70), wherein the third light source (12) and the first light source (11) are alternatively activated, the third reflector (70) is located between the first reflector (20) and the first projection portion (61) of the lens (60), the third light source (12) is located between the first light source (11) and the third reflector (70);

the third reflector (70) is configured to reflect light rays from the third light source (12) towards the first projection portion (61) of the lens (60).

9. The light emitting device (1) according to claim 8, characterized in that the third reflector (70) is formed as a single part with the first reflector (20).

10. A light emitting device (1) according to any one of claims 3 to 5, characterized in that the lens (60) is formed as a single component and comprises an extension piece (63) extending towards the inside of the light emitting device (1), the extension piece (63) being snapped to the intermediate portion (53) of the carrier (50).

11. The light emitting device (1) according to claim 10, wherein the extension piece (63) is further snapped to the first reflector (20) or the second reflector (40).

12. A motor vehicle, characterized in that it comprises a light emitting device (1) according to any one of claims 1 to 11.