CN218993174U - Car light module and car light - Google Patents

Abstract

The application discloses car light module and car light relates to car light technical field. The car lamp module comprises a light source, a first reflecting mirror and a second reflecting mirror, wherein the first reflecting mirror and the second reflecting mirror are sequentially arranged in the light path transmission direction, a cut-off line structure for forming a cut-off line of an illumination light shape of the car lamp module is arranged at the boundary of one side of the first reflecting mirror, a gradient adjusting structure for adjusting the cut-off line is formed on the second reflecting mirror, light rays emitted by the light source are sequentially reflected by the first reflecting mirror and the second reflecting mirror and then projected to form the illumination light shape with the cut-off line, and the gradient adjusting structure is used for adjusting the gradient of the cut-off line, so that the cut-off line of the illumination light shape is weakened, and meanwhile the illumination intensity of other illumination areas is guaranteed.

Description

Car light module and car light

Technical Field

The application relates to the technical field of car lamps, in particular to a car lamp module and a car lamp.

Background

The vehicle lamp is a lamp on a vehicle, is a lighting tool for the vehicle to run on a road at night, is a prompting tool for sending various vehicle running signals, and plays a very important role in ensuring the safe running of the vehicle. With the development of society and economy, the automobile industry is also developed, and with the continuous development of automobile lighting technology, more requirements are also put on the functions of the automobile lamp.

In car light illumination, the dipped beam needs to have the cutoff line on the horizontal direction to avoid dazzling the driver of other vehicles on the road, influence driving safety, simultaneously, the cutoff line needs to be in a certain gradient range, namely by the change rate scope that bright darkens, avoid the abrupt change of illumination brightness to lead to driver vision inadaptation, influence driving safety equally. In the prior art, the whole dermatoglyph treatment is generally carried out on the light emergent surface of the lens or tiny convex points or pits are arranged, so that the whole shape of the low-beam illumination light is weakened, and the gradient adjustment of the cut-off line of the low-beam light is achieved, but the brightness of other illumination areas of the low-beam light is affected, and the low-beam performance is reduced.

Disclosure of Invention

An object of the present application is to provide a lamp module and a lamp, which can perform gradient adjustment for a low beam cutoff portion.

Embodiments of the present application are implemented as follows:

in one aspect of the embodiment of the application, a car lamp module is provided, including light source and first speculum and the second speculum that sets gradually on light path transmission direction, a side boundary department of first speculum is provided with and is used for forming the cut-off line structure of the bright and dark cut-off line of car lamp module illumination light shape, be formed with on the second speculum and be used for adjusting the gradient regulation structure of bright and dark cut-off line, the light of light source outgoing warp first speculum with the second speculum is projected after reflection in proper order and is formed the illumination light shape that has bright and dark cut-off line.

Optionally, as an implementation manner, the gradient adjusting structure includes a plurality of rectangular reflecting planes connected in sequence, the plurality of rectangular reflecting planes are connected in sequence along a width direction of the rectangular reflecting planes, and an included angle between two adjacent rectangular reflecting planes is an obtuse angle.

Alternatively, as an implementation manner, the width of the rectangular reflecting plane ranges from 1mm to 5mm.

Alternatively, as an embodiment, the widths of the plurality of rectangular reflecting planes are the same, or the widths of the plurality of rectangular reflecting planes gradually increase toward the second mirror boundary in the width direction thereof.

Alternatively, as an implementation manner, the surface area of the gradient adjusting structure accounts for 15% -20% of the surface area of the reflecting surface of the second reflecting mirror.

Alternatively, as an implementation manner, the first reflecting mirror includes a first reflecting surface and a second reflecting surface which are connected to each other, and the light rays emitted from the light source are projected onto the second reflecting mirror through the first reflecting surface and the second reflecting surface in sequence.

Optionally, as an implementation manner, the cut-off line structure is located at a boundary of the first reflecting surface near the light source.

Optionally, as an implementation manner, the first reflecting surface is a paraboloid or a paraboloid, the light source is disposed at a focal point of the paraboloid or the paraboloid, or the first reflecting surface is an ellipsoid or an ellipsoid, and the light source is disposed at a first focal point of the ellipsoid or the ellipsoid.

Optionally, as an implementation manner, the car light module further includes a circuit board electrically connected with the light source and a heat radiator disposed on the circuit board.

In another aspect of the embodiments of the present application, there is provided a vehicle lamp, including a bracket, and the vehicle lamp module set as set forth in any one of the above, the vehicle lamp module set being mounted on the bracket.

The beneficial effects of the embodiment of the application include:

the application provides a car light module and car light, including the light source and first speculum and the second speculum that set gradually on light path transmission direction, one side boundary department of first speculum is provided with the cut-off line structure that is used for forming the bright cut-off line of car light module illumination light shape, be formed with the gradient adjustment structure that is used for adjusting the bright cut-off line on the second speculum, the light of light source outgoing is projected after first speculum and second speculum reflect in proper order and is formed the illumination light shape that has the bright cut-off line, gradient adjustment to the bright cut-off line through the gradient adjustment structure, thereby the bright cut-off line of blurring illumination light shape guarantees the illumination intensity of other illumination areas simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a vehicle lamp module according to an embodiment of the present disclosure;

FIG. 2 is a second schematic diagram of a lamp module according to an embodiment of the present disclosure;

fig. 3 is a cross-sectional view of a lamp module provided in an embodiment of the present application;

fig. 4 is a third schematic structural diagram of the lamp module according to the embodiment of the present application.

Icon: 100-a car lamp module; 110-a light source; 120-a first mirror; 121-a first reflective surface; 122-a second reflective surface; 123-cut-off line structure; 130-a second mirror; 131-gradient tuning structure; 1311-rectangular reflective planes; 140-a circuit board; 150-heat sink.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 1, 2 and 3, the present embodiment provides a vehicle lamp module 100, which includes a light source 110, a first reflector 120 and a second reflector 130 sequentially disposed along a light path transmission direction, a cut-off line structure 123 for forming a cut-off line of an illumination light shape of the vehicle lamp module 100 is disposed at a boundary of one side of the first reflector 120, a gradient adjusting structure 131 for adjusting the cut-off line is formed on the second reflector 130, and light emitted from the light source 110 is sequentially reflected by the first reflector 120 and the second reflector 130 and then projected to form the illumination light shape with the cut-off line.

Specifically, the gradient adjusting structure 131 is disposed on the reflecting surface of the second reflecting mirror 130, and the light focusing performance of the region where the gradient adjusting structure 131 of the second reflecting mirror 130 is located reflected by the first reflecting mirror 120 is adjusted by the gradient adjusting structure 131, so that the brightness of the light reflected by the region gradually changes, the gradient of the cut-off line corresponding to the projection forming the illumination light shape is reduced, the boundary of the cut-off line is virtual and soft, and the chromatic dispersion is reduced. Therefore, the discomfort of the vision of a driver caused by the abrupt change of the brightness of the cut-off line area can be avoided, and the driving safety is ensured.

Furthermore, a gradient adjusting structure 131 for adjusting the cutoff line may be provided at the boundary of the reflecting surface of the second reflecting mirror 130, so that the structure of the main reflecting area of the reflecting surface of the second reflecting mirror 130 is not changed, the light shape formed by the light emitted from the reflecting surface of the second reflecting mirror 130 is not changed as a whole, the cutoff line boundary can be made virtual, and the light shape and the brightness of the lamp module 100 can be ensured.

The application provides a car light module 100, including light source 110 and first speculum 120 and second speculum 130 that set gradually in the light path transmission direction, the one side boundary department of first speculum 120 is provided with the cut-off line structure 123 that is used for forming the bright cut-off line of car light module 100 illumination light shape, be formed with the gradient adjustment structure 131 that is used for adjusting the bright cut-off line on the second speculum 130, the light that light source 110 was emergent throws the illumination light shape that forms to have the bright cut-off line after first speculum 120 and second speculum 130 reflect in proper order, change the focusing performance of the light that is reflected to gradient adjustment structure 131 by first speculum 120 through the gradient adjustment structure 131 on the second speculum 130, thereby reduce the gradient of the bright cut-off line that this part light corresponds to form, thereby the blurring bright cut-off line boundary, guarantee the illumination intensity in other regions of illumination light shape simultaneously.

In one possible embodiment of the present application, as shown in fig. 2, the gradient adjusting structure 131 includes a plurality of rectangular reflecting planes 1311 connected in sequence, the plurality of rectangular reflecting planes 1311 are connected in sequence along the width direction thereof, and an included angle between two adjacent rectangular reflecting planes 1311 is an obtuse angle.

Specifically, the gradient adjusting structure 131 is set to be a plurality of rectangular reflecting planes 1311 which are sequentially connected, an included angle between two adjacent rectangular reflecting planes 1311 is an obtuse angle, after light rays strike different rectangular reflecting planes 1311, the emergent directions of the light rays reflected from different rectangular reflecting planes 1311 are different, and the light rays emergent from different rectangular reflecting planes 1311 mutually intersect, so that the boundary of a cut-off line of an illumination light shape obtained by projecting the light rays emergent from the gradient adjusting structure 131 is more virtual and softer.

In one possible embodiment of the present application, as shown in FIG. 2, the rectangular reflecting plane 1311 has a width in the range of 1mm-5mm.

Specifically, when the width of the rectangular reflecting plane 1311 is too small, the reflecting surface of the gradient adjusting structure 131 may approach the arc surface infinitely, and at this time, the gradient adjusting structure 131 cannot reduce the focusing performance of the local area of the second reflecting mirror 130, so that blurring of the cutoff line cannot be achieved. When the width of the rectangular reflecting plane 1311 is too large, the reflecting surface of the gradient adjusting structure 131 is an entire plane, and at this time, the light rays can exit from the plane without interfering with each other, and the gradient adjusting structure 131 cannot reduce the focusing performance of the local area of the second reflecting mirror 130, so that the blurring of the cut-off line cannot be realized. The present application sets the width of rectangular reflecting plane 1311 to a range of 1mm-5mm to ensure that gradient adjusting structure 131 can reduce the focusing performance of this region to achieve blurring of the cutoff line.

In one possible embodiment of the present application, as shown in fig. 2, the widths of the plurality of rectangular reflecting planes 1311 are the same, or the widths of the plurality of rectangular reflecting planes 1311 gradually increase toward the boundary of the second mirror 130 in the width direction thereof.

Specifically, when the widths of the plurality of rectangular reflection planes 1311 are the same, the gradient adjustment capability of the gradient adjustment structure 131 to the cut-off line region can be made uniform, and the width of the rectangular reflection plane 1311 may be set to 1mm, 2mm, 3mm, 4mm, or 5mm, for example. When the widths of the plurality of rectangular reflecting planes 1311 gradually increase toward the reflecting surface end of the second reflecting mirror 130 along with the upward and downward extending direction of the reflecting surface of the second reflecting mirror 130, the gradient adjusting structure 131 can be made to gradually weaken the illumination intensity of the cut-off line region to weaken the change in brightness at the cut-off line boundary.

In one possible embodiment of the present application, as shown in fig. 2, the surface area of the gradient adjustment structure 131 is 15% -20% of the surface area of the reflecting surface of the second mirror 130.

Specifically, the surface area of the gradient adjusting structure 131 accounts for 15% -20% of the surface area of the reflecting surface of the second reflecting mirror 130, so that blurring of the boundary of the cut-off line by the gradient adjusting structure 131 can be ensured, and illumination intensity of other reflecting areas can be ensured.

Further, when the gradient adjusting structures 131 are disposed at both ends of the reflecting surface of the second reflecting mirror 130, the cut-off line structure 123 is disposed at the lower boundary of the second reflecting mirror 130, and the gradient adjusting structures 131 on the second reflecting mirror 130 can reduce the gradient of the cut-off line of the light shape, and the boundary of the cut-off line is virtual, so as to reduce the chromatic dispersion.

In one possible embodiment of the present application, as shown in fig. 1 and 3, the first reflecting mirror 120 includes a first reflecting surface 121 and a second reflecting surface 122 that are connected to each other, and the light emitted from the light source 110 is projected onto the second reflecting mirror 130 through the first reflecting surface 121 and the second reflecting surface 122 in sequence.

Specifically, the first reflecting mirror 120 has a first reflecting surface 121 and a second reflecting surface 122 that are connected to each other, the light emitted from the light source 110 is firstly projected onto the first reflecting surface 121, then the light projected onto the first reflecting surface 121 is projected onto the second reflecting surface 122 through the first reflecting surface 121, and the light projected onto the second reflecting surface 122 is the light intercepted by the cut-off line structure 123.

Specifically, the first reflecting surface 121 and the second reflecting surface 122 are disposed at a preset included angle, so that the light beam is projected onto the second reflecting mirror 130 after the transmission direction of the light beam is adjusted by the second reflecting surface 122, so as to ensure that the light beam of the vehicle lamp module 100 can exit along the preset direction.

In one possible embodiment of the present application, as shown in fig. 2, the first reflecting surface 121 and the second reflecting surface 122 of the first reflecting mirror 120 may be disposed relatively independently, so long as the light emitted from the light source 110 is first projected onto the first reflecting surface 121, and then the light projected onto the first reflecting surface 121 is projected onto the second reflecting surface 122 through the first reflecting surface 121.

In one possible embodiment of the present application, as shown in fig. 2 and 3, the cutoff line structure 123 is located at a boundary of the first reflective surface 121 near the light source 110.

Specifically, the cut-off line structure 123 is located at a boundary of the first reflecting surface 121 near the light source 110, the divergent light emitted from the light source 110 is projected onto the first reflecting surface 121, and after being intercepted by the cut-off line structure 123, the remaining light is reflected by the first reflecting surface 121 to the second reflecting surface 122.

Further, a gradient adjusting structure 131 may also be disposed on the second reflecting surface 122, so as to primarily blur the boundary of the cutoff line through the gradient adjusting structure 131 on the second reflecting surface 122, and then secondarily blur the boundary of the cutoff line after primarily blurring through the gradient adjusting structure 131 on the second reflecting mirror 130, thereby realizing gradient adjustment of the cutoff line.

In one possible embodiment of the present application, as shown in fig. 2, the first reflecting surface 121 is a paraboloid or a paraboloid, the light source 110 is disposed at a focal point of the paraboloid or paraboloid, or the first reflecting surface 121 is an ellipsoid or an ellipsoid, and the light source 110 is disposed at a first focal point of the ellipsoid or ellipsoid.

Specifically, after the first reflecting surface 121 is configured as a paraboloid or a paraboloid, the divergent light emitted by the light source 110 can be reflected by the first reflecting surface 121, so that the light is converged, so that the light emitted from the first reflecting surface 121 is parallel or approximately parallel, and the brightness of the light emitted through the second reflecting mirror 130 is ensured.

It will be appreciated that the first reflecting surface 121 may also be configured as an ellipsoid or an ellipsoid-like surface, and the light source 110 is disposed at a first focal point of the ellipsoid or the ellipsoid-like surface, and the parallel incident light beam may converge to a point by the reflection of the ellipsoid surface, and have a positive focal length. After the divergent light emitted from the light source 110 is reflected by the first reflecting surface 121, the light is converged, so that the light emitted from the first reflecting surface 121 is parallel or nearly parallel, so as to ensure the brightness of the light emitted through the second reflecting mirror 130.

Among them, the first and second reflecting mirrors 120 and 130 may be coated with a reflecting film, which may be an aluminum film for enhancing reflection of light rays, for example.

Further, the second reflecting surface 122 and the reflecting surface on the second reflecting mirror 130 are also configured as cylindrical cambered surfaces, and the cylindrical cambered surfaces of the second reflecting surface 122 and the cylindrical cambered surfaces of the reflecting surface on the second reflecting mirror 130 are mutually perpendicular, so as to collimate the light rays exiting from the first reflecting surface 121 and the light rays exiting from the second reflecting mirror 130 along two mutually perpendicular directions.

In one possible embodiment of the present application, as shown in fig. 4, the lamp module 100 further includes a circuit board 140 electrically connected to the light source 110 and a heat sink 150 disposed on the circuit board 140.

Specifically, the circuit board 140 is electrically connected to the light source 110, and the heat sink 150 contacts the circuit board 140 to quickly absorb and dissipate heat generated by the light source 110 emitted by the heat sink 150.

Further, the radiator 150 includes a heat dissipation plate and a plurality of cooling fins disposed on the heat dissipation plate, and the whole heat dissipation area of the radiator 150 is increased by the plurality of cooling fins, so that the radiator 150 can quickly absorb the heat emitted by the light source 110, the heat emitted by the light source 110 is firstly transferred to the heat dissipation plate and then transferred to the cooling fins, so as to avoid the heat generated by the light source 110 to affect the working efficiency of the light source 110, and further ensure the long-term stable work of the light source 110.

The light source 110 is arranged on the heat dissipation plate through heat conduction glue, and heat generated when the light source 110 emits light can be quickly conducted to the heat dissipation plate through the heat conduction glue.

The embodiment of the application also discloses a car lamp, which comprises a bracket and the car lamp module 100 in the previous embodiment. The lamp includes the same structure and advantageous effects as the lamp module 100 in the previous embodiment. The structure and the beneficial effects of the lamp module 100 are described in detail in the foregoing embodiments, and are not repeated here.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a car light module, its characterized in that includes light source and first speculum and the second speculum that sets gradually in light path transmission direction, one side boundary department of first speculum is provided with and is used for forming the cut-off line structure of the bright and dark cut-off line of car light module illumination light shape, be formed with on the second speculum and be used for adjusting the gradient regulation structure of bright and dark cut-off line, the light that the light source was emergent is through first speculum with the second speculum is projected after reflection in proper order and is formed the illumination light shape that has bright and dark cut-off line.

2. The vehicle lamp module according to claim 1, wherein the gradient adjusting structure comprises a plurality of rectangular reflecting planes connected in sequence, the plurality of rectangular reflecting planes are connected in sequence along the width direction thereof, and an included angle between two adjacent rectangular reflecting planes is an obtuse angle.

3. The vehicle lamp module of claim 2, wherein the rectangular reflective surface has a width in the range of 1mm to 5mm.

4. The lamp module of claim 2, wherein the widths of the plurality of rectangular reflecting planes are the same or the widths of the plurality of rectangular reflecting planes gradually increase toward the second mirror boundary in the width direction thereof.

5. The vehicle lamp module of claim 1, wherein the surface area of the gradient adjustment structure is 15% -20% of the surface area of the second reflector reflecting surface.

6. The vehicle lamp module of claim 1, wherein the first reflector comprises a first reflecting surface and a second reflecting surface which are connected with each other, and the light emitted from the light source is projected onto the second reflector through the first reflecting surface and the second reflecting surface in sequence.

7. The vehicle lamp module of claim 6, wherein the cutoff line structure is located at a boundary of the first reflective surface proximate the light source.

8. The vehicle lamp module of claim 6, wherein the first reflective surface is a paraboloid or a paraboloid-like surface, the light source is disposed at a focal point of the paraboloid or paraboloid-like surface, or the first reflective surface is an ellipsoid or ellipsoid-like surface, the light source is disposed at a first focal point of the ellipsoid or ellipsoid-like surface.

9. The vehicle lamp module of claim 1, further comprising a circuit board electrically connected to the light source and a heat sink disposed on the circuit board.

10. A vehicle lamp comprising a bracket, and a vehicle lamp module according to any one of claims 1-9, said vehicle lamp module being mounted on said bracket.

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