Light-emitting unit of automobile lamp

Abstract

The utility model discloses a light-emitting unit of an automobile lamp. The light-emitting unit comprises a light guide light source, an inner lens, a first LED light source, a first thick-wall inner lens, a second LED light source, a second thick-wall inner lens, a third LED light source, a reflector and an outer lens, the light guide light source and the inner lens are respectively positioned at one longitudinal end of the automobile lamp; the light guide light source sequentially penetrates through the inner lens and the outer lens along the transverse direction of the automobile lamp; the first LED light source, the second LED light source and the third LED light source are sequentially arranged in the transverse direction of the automobile lamp from back to front and located at the other longitudinal end of the automobile lamp. The first LED light source emits light to the first thick-wall inner lens in the longitudinal direction of the automobile lamp and then transversely penetrates through the outer lens in the transverse direction of the automobile lamp after being reflected by the first LED light source; the second LED light source emits light to the second thick-wall inner lens in the longitudinal direction of the automobile lamp and then transversely penetrates through the outer lens in the transverse direction of the automobile lamp after being reflected by the second LED light source; the third LED light source emits light to the reflector in the longitudinal direction of the automobile lamp and in the direction deviating from the light guide light source and then transversely penetrates through the outer lens in the transverse direction of the automobile lamp after being reflected by the reflector. The automobile lamp has the advantage that the transverse size of the automobile lamp is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a light-emitting unit of an automotive lamp. Background Art

[0002] During the driving of an automobile, automotive lamps have very important lighting functions and signal functions, and are the windows for the vehicle to interact with the external environment. The internal structure where the automotive lamps are located is relatively complex with many components. The currently commonly used solution is to separately place each light-emitting unit inside the lamp body of the lamp, but as the number of light-emitting units increases and the lamp space becomes smaller, a new installation structure inside the automotive lamp is proposed for this problem. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a light-emitting unit of an automotive lamp that reduces the lateral space size of components and increases the utilization rate of the space inside the lamp.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A light-emitting unit of an automotive lamp, comprising a light guide light source, an inner light distribution mirror, a first LED light source, a first thick-wall inner light distribution mirror, a second LED light source, a second thick-wall inner light distribution mirror, a third LED light source, and a reflector, which are respectively fixed in a lamp cavity;

[0006] It further comprises an outer light distribution mirror that encloses the lamp cavity, and the outer light distribution mirror is located on the front side in the lateral direction of the vehicle lamp;

[0007] The light guide light source and the inner light distribution mirror are respectively located at one end in the longitudinal direction of the vehicle lamp, and the light guide light source sequentially passes through the inner light distribution mirror and the outer light distribution mirror along the lateral direction of the vehicle lamp;

[0008] Along the direction from the rear to the front in the lateral direction of the vehicle lamp, the first LED light source, the second LED light source, and the third LED light source are arranged in sequence, and the first LED light source, the second LED light source, and the third LED light source are respectively located at the other end in the longitudinal direction of the vehicle lamp;

[0009] The first thick-wall inner light distribution mirror and the second thick-wall inner light distribution mirror are respectively located in the middle in the longitudinal direction of the vehicle lamp;

[0010] The first LED light source shoots along the longitudinal direction of the vehicle lamp towards the first thick-wall inner light distribution mirror, and after being reflected by the first thick-wall inner light distribution mirror, it passes through the outer light distribution mirror along the lateral direction of the vehicle lamp;

[0011] The second LED light source shoots along the longitudinal direction of the vehicle lamp towards the second thick-wall inner light distribution mirror, and after being reflected by the second thick-wall inner light distribution mirror, it passes through the outer light distribution mirror along the lateral direction of the vehicle lamp;

[0012] The third LED light source emits light along the longitudinal direction of the vehicle lamp and away from the light guide light source, shines on the reflector, and then passes through the outer light distribution mirror along the transverse direction of the vehicle lamp after being reflected by the reflector.

[0013] Further, the light guide light source is a position lamp, the first LED light source is a position lamp, the second LED light source is a turn signal lamp, and the third LED light source is a brake lamp.

[0014] In the above technical solution, the present utility model has the following beneficial effects:

[0015] The light of the present utility model is emitted from the LED light source, and the light output angle is changed through the reflection functions of the first thick-walled inner light distribution mirror, the second thick-walled inner light distribution mirror and the reflector, and is irradiated outside the lamp through the inner light distribution mirror and the outer light distribution mirror. The path of the light source is concentrated on the front side in the longitudinal and transverse directions of the vehicle lamp, and the rear side in the transverse direction of the vehicle lamp that is left empty is simple and clean. The present invention reduces the spatial size of the components, especially the transverse size of the vehicle lamp is significantly reduced, increases the space utilization rate inside the lamp, and reduces the corresponding material cost. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of a light-emitting unit of an automotive lamp disclosed by the present utility model.

[0018] Reference Signs:

[0019] Light guide light source 1, inner light distribution mirror 2, outer light distribution mirror 3, first LED light source 4, first thick-walled inner light distribution mirror 5, second LED light source 6, second thick-walled inner light distribution mirror 7, third LED light source 8, reflector 9. Detailed Embodiment

[0020] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0021] It should be noted that the orientation or positional relationship indicated by the terms "above", "one end", "upper", etc. used in this text is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Similar expressions are only for the purpose of illustration and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "one part", "two parts", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] As Figure 1 shown, an automotive lamp light-emitting unit includes a light guide light source 1, an inner light distribution mirror 2, a first LED light source 4, a first thick-wall inner light distribution mirror 5, a second LED light source 6, a second thick-wall inner light distribution mirror 7, a third LED light source 8, and a reflector 9 that are respectively fixed in the lamp cavity.

[0023] It further includes an outer light distribution mirror 3 that encloses the lamp cavity, and the outer light distribution mirror 3 is located on the front side of the vehicle lamp in the transverse direction. The light guide light source 1, the inner light distribution mirror 2, the first LED light source 4, the first thick-wall inner light distribution mirror 5, the second LED light source 6, the second thick-wall inner light distribution mirror 7, the third LED light source 8, and the reflector 9 are all located behind the outer light distribution mirror 3.

[0024] The light guide light source 1 and the inner light distribution mirror 2 are respectively located at one end of the vehicle lamp in the longitudinal direction, and the first LED light source 4, the second LED light source 6, and the third LED light source 8 are respectively located at the other end of the vehicle lamp in the longitudinal direction. Along the direction from the rear to the front in the transverse direction of the vehicle lamp, the first LED light source 4, the second LED light source 6, and the third LED light source 8 are arranged in sequence; the first thick-wall inner light distribution mirror 5 and the second thick-wall inner light distribution mirror 7 are respectively located in the middle of the vehicle lamp in the longitudinal direction, that is, along the longitudinal direction of the vehicle lamp, the first thick-wall inner light distribution mirror 5 is located between the inner light distribution mirror 2 and the first LED light source 4, and the second thick-wall inner light distribution mirror 7 is located between the inner light distribution mirror 2 and the second LED light source 6.

[0025] Along the direction from the rear to the front in the transverse direction of the vehicle lamp, the light guide light source 1, the inner light distribution mirror 2, and the outer light distribution mirror 3 are arranged in sequence. The light emitted by the light guide light source 1 sequentially passes through the inner light distribution mirror 2 and the outer light distribution mirror 3 along the transverse direction of the vehicle lamp, and then shoots out of the lamp. The inner light distribution mirror 2 and the outer light distribution mirror 3 play a role in making the light uniform.

[0026] Preferably, a U-shaped sub-lamp cavity that surrounds the light guide light source 1 is provided in the lamp cavity, and the inner light distribution mirror 2 is installed in the sub-lamp cavity. The light of the light guide light source 1 shoots out from the opening of the sub-lamp cavity. The overall path of the light of the light guide light source 1 is along the transverse direction of the vehicle lamp.

[0027] Along the transverse direction of the vehicle lamp, the first thick-wall inner light distribution mirror 5 is at the rear and the second thick-wall inner light distribution mirror is at the front.

[0028] The first LED light source 4 is emitted in the longitudinal direction of the vehicle lamp, in the direction close to the light guide light source, towards the first thick-walled internal light distribution mirror 5. After being reflected by the first thick-walled internal light distribution mirror 5, it passes through the external light distribution mirror 3 in the transverse direction of the vehicle lamp, and thus irradiates outside the lamp. The first thick-walled internal light distribution mirror 5 can be a light guide plate. A reflection structure is provided on the light guide plate, and the reflection structure is used to change the light path of the first LED light source 4, so that it enters the light guide plate from the bottom surface of the first thick-walled internal light distribution mirror 5 and then exits in the transverse direction of the vehicle lamp.

[0029] The second LED light source 6 is emitted in the longitudinal direction of the vehicle lamp, in the direction close to the light guide light source, towards the second thick-walled internal light distribution mirror 7. After being reflected by the second thick-walled internal light distribution mirror 7, it passes through the external light distribution mirror 3 in the transverse direction of the vehicle lamp and irradiates outside the lamp. The second thick-walled internal light distribution mirror 7 can be a light guide plate.

[0030] The light emission direction of the third LED light source 8 is opposite to that of the first thick-walled internal light distribution mirror 5 and the second thick-walled internal light distribution mirror. The third LED light source 8 is emitted in the longitudinal direction of the vehicle lamp and in the direction away from the light guide light source 1 towards the reflector 9, and then passes through the external light distribution mirror 3 in the transverse direction of the vehicle lamp after being reflected by the reflector 9.

[0031] The functions of the first thick-walled internal light distribution mirror 5, the second thick-walled internal light distribution mirror and the reflector are all to change the light path, so that the light changes from the longitudinal direction of the vehicle lamp to the transverse direction of the vehicle lamp.

[0032] For different vehicle models, the design functions of the lamps are also different. The functions of the first LED light source 4, the second LED light source 6, the third LED light source 8 and the light guide light source can be exemplary as follows: Preferably, the light guide light source 1 is a position lamp, the first LED light source 4 is a position lamp, the second LED light source 6 is a turn signal lamp, and the third LED light source 8 is a brake lamp.

[0033] Only some exemplary embodiments of the present invention have been described above by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A light-emitting unit for an automobile lamp, characterized in that: It comprises a light guide light source (1), an inner light distribution mirror (2), a first LED light source (4), a first thick-walled inner light distribution mirror (5), a second LED light source (6), a second thick-walled inner light distribution mirror (7), a third LED light source (8) and a reflector (9) which are respectively fixed in a lamp cavity; It also includes an external light distribution mirror (3) that surrounds the lamp cavity, and the external light distribution mirror (3) is located at the lateral front side of the lamp; The light guide light source (1) and the inner light distribution mirror (2) are respectively located at one end of the vehicle lamp in the longitudinal direction, and the light guide light source (1) sequentially passes through the inner light distribution mirror (2) and the outer light distribution mirror (3) in the transverse direction of the vehicle lamp; Along the transverse direction of the vehicle lamp from back to front, the first LED light source (4), the second LED light source (6), and the third LED light source (8) are arranged in sequence, and the first LED light source (4), the second LED light source (6), and the third LED light source (8) are respectively located at the other end of the longitudinal direction of the vehicle lamp; The first thick-walled inner light distribution mirror (5) and the second thick-walled inner light distribution mirror (7) are respectively located in the middle of the longitudinal direction of the vehicle lamp; The first LED light source (4) is emitted toward the first thick-walled inner light distribution mirror (5) along the longitudinal direction of the vehicle lamp, and then is reflected by the first thick-walled inner light distribution mirror (5) and passes through the outer light distribution mirror (3) along the transverse direction of the vehicle lamp; The second LED light source (6) is emitted toward the second thick-walled inner light distribution mirror (7) along the longitudinal direction of the vehicle lamp, and then is reflected by the second thick-walled inner light distribution mirror (7) and passes through the outer light distribution mirror (3) along the transverse direction of the vehicle lamp; The third LED light source (8) is emitted toward the reflector (9) in the longitudinal direction of the vehicle lamp and away from the light guide light source (1), and then is reflected by the reflector (9) and passes through the outer light distribution mirror (3) in the transverse direction of the vehicle lamp.

2. The automotive lamp light emitting unit according to claim 1, characterized in that: The optical waveguide light source (1) is a position light, the first LED light source (4) is a position light, the second LED light source (6) is a turn signal light, and the third LED light source (8) is a brake light.

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