CN210740282U

CN210740282U - Headlamp module, headlamp and vehicle

Info

Publication number: CN210740282U
Application number: CN201921972714.3U
Authority: CN
Inventors: 张洁
Original assignee: HASCO Vision Technology Co Ltd
Current assignee: HASCO Vision Technology Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-06-12
Anticipated expiration: 2029-11-13

Abstract

The utility model relates to a car light discloses a head lamp module, which comprises a light source (1), a reflective cup (2), a light screen (3) and a lens (4), wherein the light source (1) is arranged at the first focus of the reflective cup (2); the light shielding plate (3) comprises a cut-off line forming structure (31) and a reflecting surface (32), the cut-off line forming structure (31) is arranged in a second focal region of the reflecting cup (2), and the reflecting surface (32) is arranged on one surface, facing the reflecting cup (2), of the cut-off line forming structure (31); the lens (4) is arranged on the light emergent path of the reflection cup (2). The utility model discloses a light screen (3) of head-light module can be recycled with light reflection cup (2) that shelters from, has improved the light efficiency of head-light module. The utility model also discloses a head-light and a vehicle.

Description

Headlamp module, headlamp and vehicle

Technical Field

The utility model relates to a car light specifically relates to a head-light module. The utility model discloses still relate to a head-light and a vehicle.

Background

A conventional headlamp module is generally shown in fig. 1 and includes a light source 1, a reflector 2, a light shielding plate 3 and a lens 4. The light source 1 irradiates upwards, the light-emitting center is arranged at a first focus of the ellipsoid-like surface reflecting cup 2, light rays which are emitted by the light source 1 and are close to lambert divergence are converged at a second focus of the reflecting cup 2 through reflection of the reflecting cup 2, the light rays irradiate to the lens 4, and then the light rays are imaged on a road surface through the lens 4 to form illumination light shapes. In the case of low beam illumination, in order to prevent the illumination light from affecting the sight line to the driver of the vehicle, it is necessary to shield a part of the light emitted from the light source 1 with the light shielding plate 3. The light shielding plate 3 is provided with a cut-off line forming structure 31, and forms a low beam shape with a cut-off line when blocking light as shown in fig. 2.

However, when the headlamp module of the prior art uses low-beam illumination, a considerable part of light emitted by the light source is not involved in illumination due to shielding of the light shielding plate, which causes waste of light and reduces the lighting effect of the headlamp module.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a head-light module is provided, the light efficiency of short-distance beam illumination can be improved.

The utility model discloses a further technical problem that will solve provides a head-light, and the dipped beam light efficiency of this head-light is higher.

Furthermore, the utility model discloses the technical problem who still solves provides a vehicle, and the head-light of this vehicle has higher dipped headlight light efficiency.

In order to solve the technical problem, the utility model provides an aspect provides a headlamp module, including light source, anti-light cup, light screen and lens, the light source sets up anti-light cup's first focus department, be provided with cut-off line on the light screen and form the structure, cut-off line forms the structure setting and is in anti-light cup's second focus is regional, lens set up anti-light cup's light-emitting path, just the focus of lens is located cut-off line forms the structure region, still be provided with the reflection of light face on the light screen, the reflection of light face sets up the orientation of light screen anti-light cup's one side the light screen with still be provided with the speculum between the anti-light cup, the speculum be suitable for with the light reflection of light face to lens to form supplementary illumination light shape.

Preferably, the light shielding plate is disposed perpendicularly to an optical axis of the lens, and the cut-off line forming structure is located on the optical axis of the lens. In this preferred embodiment, the light shielding plate is disposed perpendicular to the optical axis of the lens, so that the shape of the cut-off line of the formed low beam shape is consistent with the shape of the cut-off line forming structure, thereby facilitating the arrangement of the cut-off line forming structure. The cut-off line forming structure is located on the optical axis of the lens, and the integral definition of the cut-off line is high.

Preferably, the reflecting surface of the reflector is a plane or a curved surface. In the preferred technical scheme, the plane or curved reflecting surface can reflect the light rays irradiated on the reflecting surface to the lens, and the auxiliary lighting light shape is formed through the refraction of the lens. The reflecting surface of the curved surface can also redistribute the reflected light rays so as to adjust the illumination light shape in a targeted manner.

Preferably, the reflecting surface of the reflector is formed by combining a plurality of planes. According to the preferred technical scheme, the reflecting surface formed by combining a plurality of planes can independently control the reflecting direction of the light rays irradiated on different planes so as to pertinently adjust the illumination of different areas of the formed auxiliary light shape, so that the formed auxiliary light shape is more reasonable.

Preferably, the reflecting surface is provided with a high-reflecting material layer. Through this preferred technical scheme, high reflecting material layer can improve the light reflex effect of plane of reflection improves and shines the utilization ratio of the light on the plane of reflection improves the light utilization ratio of head-light module.

Further preferably, the highly reflective material layer is an aluminum plated layer or a silver plated layer. In the preferred technical scheme, the aluminized high-reflectivity material layer has low cost, but the light reflectivity is slightly poor, and the stability of the plating layer is also poor. The plated layer of the silver-plated high-light-reflection material layer has high stability, better reflection effect and higher cost.

Preferably, the light shielding plate is adapted to switch between a first position and a second position, when the light shielding plate is switched to the first position, the cut-off line forming structure is located in the second focal region of the light reflecting cup, and when the light shielding plate is switched to the second position, the light shielding plate avoids the light emitting path of the light reflecting cup. Through this preferred technical scheme, when the light screen switches to the first position, can be to light on the reflection of light cup light-emitting optical path shelters from, forms the low-beam light shape that has the light and shade cut-off line. When the shading plate is switched to the second position, the light transmission on the light-emitting path of the reflection cup is not influenced, so that the light irradiated by the reflection cup can form a high beam shape.

Preferably, the shutter plate is switchable between the first position and the second position by means of translation or rotation. In the preferred technical scheme, the position of the light screen is switched in a translation or rotation mode, the switching effect is good, and the realization is convenient.

The utility model discloses the second aspect provides a head-light, has used in this head-light the utility model discloses the head-light module that the first aspect provided.

The utility model discloses the third aspect provides a vehicle, and this vehicle includes the utility model discloses the head-light that the second aspect provided.

Through the technical scheme, the utility model discloses a head-light module, be provided with on the light screen the reflection of light face can arrive with the light reflection that shelters from the speculum, and pass through speculum reflection of light to lens form the auxiliary lighting light shape, have realized being sheltered from the recycling of light, have improved the light efficiency of passing light illumination. The arrangement of different planes or curved surfaces of the reflecting surface of the reflector can better control and utilize the light rays blocked by the light shielding plate. The mobile setting of light screen makes the utility model discloses a light shape that head-light module formed can be switched into low beam light shape or high beam light shape. The utility model discloses an adopted in the head-light the utility model discloses a head-light module, the light efficiency of short-distance beam illumination is higher. The utility model discloses a vehicle has used the utility model discloses a head-light also has above-mentioned advantage.

Drawings

Fig. 1 is a schematic structural view of a conventional low beam lamp module;

FIG. 2 is a diagram of the illuminance of a screen formed by a conventional dipped headlight module;

fig. 3 is a schematic diagram of a low beam path of an embodiment of the headlamp module of the present invention;

FIG. 4 is a graph of screen illumination resulting from the headlamp module shown in FIG. 3;

FIG. 5 is a graph of the illuminance of the auxiliary light pattern formed by the reflection of the reflector of the headlamp module shown in FIG. 3;

fig. 6 is a schematic view of the translational position of the light shielding plate according to an embodiment of the head lamp module of the present invention;

fig. 7 is a schematic view of the rotational position of the light shielding plate according to an embodiment of the present invention.

Description of the reference numerals

1 light source 2 reflecting cup

3 stop line forming structure of light shielding plate 31

32 reflecting surface 4 lens

5 first position of reflecting plate A

B second position

Detailed Description

In the present invention, in the case where no explanation is given to the contrary, the position or positional relationship indicated by the use of the positional terms such as "front, rear, upper and lower" is based on the position or positional relationship after the multifocal lens or the headlamp of the present invention is normally mounted on the vehicle. The direction in which the vehicle normally travels is "front", and the direction opposite thereto is "rear".

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be understood that the embodiments described herein are merely for purposes of illustration and explanation, and the scope of the present invention is not limited to the following embodiments.

As shown in fig. 3, an embodiment of the head lamp module of the present invention includes a light source 1, a reflective cup 2, a light shielding plate 3, a lens 4 and a reflector 5. The reflector cup 2 is curved with a first focus and a second focus. The reflecting cup 2 may be an ellipsoid, an ellipsoid-like surface formed by local adjustment based on the ellipsoid, or other curved surface meeting the requirement. One end of the light reflecting cup 2 is provided with a light outlet, and the end opposite to the light outlet is a cup bottom. Usually, the first focus of the reflective cup 2 is located at the end of the cup bottom, and the second focus is located at the end of the light outlet. The light source 1 is arranged at the first focus of the reflecting cup 2, and light rays emitted by the light source 1 are reflected by the reflecting cup 2, converged to the second focus of the reflecting cup 2 and irradiated out through the light outlet. Lens 4 sets up on the light-emitting light path of reflection of light cup 2, can throw away the light that assembles through reflection of light cup 2, forms the illumination light shape. The light shielding plate 3 is provided with a cut-off line forming structure 31 and a light reflecting surface 32. The cut-off line forming structure 31 has a boundary corresponding to a desired cut-off line shape. The cut-off line forming structure 31 is disposed near the second focus of the reflector cup 2, and can partially block the light reflected by the reflector cup 2 to form a light distribution with a cut-off line shape, and the light distribution is projected by the lens 4 to form a conventional low beam shape with a cut-off line as shown in fig. 2. The light reflecting surface 32 is provided on a surface of the cut-off line forming structure 31 facing the reflector cup 2, and can reflect the blocked light in the direction of the reflector cup 2. The reflector 5 is arranged between the light screen 3 and the reflector cup 2, and the reflector 5 can be fixed on a heat dissipation device of the light source 1 or a shell of the headlamp module. The reflecting surface of the reflector 5 faces the light shielding plate 3, and the light reflected by the reflecting surface 32 can be reflected toward the lens 4, and the light is projected by the lens 4 to form an auxiliary illumination light shape. The screen illuminance map of the auxiliary lighting pattern is shown in fig. 5. The auxiliary lighting light shape is overlapped with the traditional dipped beam light shape, and the dipped beam light shape of the utility model shown in figure 4 is formed. The utility model discloses a head-light module can throw away the light that the light screen 3 sheltered from through the reflection of reflective surface 32, speculum 5 and form auxiliary lighting light shape, strengthens traditional short-distance beam light shape, has improved the utility model discloses a short-distance beam light shape's illuminance, simultaneously, has avoided because of the light screen 3 shelter from the waste of the light of shining, has improved the utility model discloses a light efficiency of head-light module.

In some embodiments of the head lamp module of the present invention, as shown in fig. 3, the light shielding plate 3 is disposed perpendicular to the optical axis of the lens 4, and the cut-off line forming structure 31 is disposed on one side of the light shielding plate 3, generally above the light shielding plate 3, and on the optical axis of the lens 4. In this way, when the cut-off line forming structure 31 blocks the light irradiated from the light outlet of the reflector cup 2, a low beam shape with a cut-off line can be formed with high overall sharpness. Meanwhile, the shape of the cutoff line projected onto the road surface is more highly conformed to the shape of the cutoff line on the cutoff line forming structure 31, and the projection distortion is smaller.

In some embodiments of the headlamp module of the present invention, the reflecting surface of the reflector 5 is a plane, and the plane reflecting surface can reflect the light reflected from the reflecting surface 32 to the lens 4 according to the original shape, so as to form the auxiliary illumination light shape. In other embodiments, the reflecting surface of the reflector 5 is curved. The curved reflecting surface can change the light reflected from the reflecting surface 32 for two times to adjust the illuminance of different parts of the auxiliary lighting light shape formed by the projection of the lens 4 in a targeted manner, so that the distribution of the finally formed low beam light shape is more reasonable.

As an embodiment of the present invention, the reflecting surface of the reflector 5 is formed by combining a plurality of planes, and the light reflected from the reflecting surface 32 irradiates different planes on the reflecting surface, and reflects to the lens 4 at different angles, and forms different areas of the auxiliary light shape after the projection of the lens 4. Different regions of the illumination light shape can be adjusted and optimized by adjusting the respective planes.

In some embodiments of the headlamp module of the present invention, a highly reflective material layer is disposed on the reflective surface 32. The high-reflectivity material has high reflectivity, can reflect more incident light and reduce light loss during reflection. The existing high-reflectivity material is mainly a metal material, and the metal material is more convenient to process.

In some embodiments of the headlamp module of the present invention, the high reflective material layer is an aluminum or silver plating layer. The reflecting rate of the aluminum coating can reach 85-90%, and the aluminum coating has good reflecting performance and low price. The reflecting rate of the silver coating can reach 95%, the reflecting performance is excellent, the stability of the coating is extremely high, the service life is long, but the cost is high.

In some embodiments of the head lamp module of the present invention, as shown in fig. 6 and 7, the light shielding plate 3 is movably disposed near the second focus of the reflective cup 2. The movement of the shading plate 3 enables the shading plate 3 to be in a first position a near the second focus of the reflector cup 2 or in a second position B avoiding the second focus of the reflector cup 2. When the light shielding plate 3 is located at the first position a, the cut-off line forming structure 31 can shield the light emitted from the light outlet of the reflector cup 2, and the headlamp module forms a low beam shape with a cut-off line. When the light shielding plate 3 is switched to the second position, the light shielding plate 3 avoids the light emitting path of the reflector cup 2, the light emitted from the light outlet of the reflector cup 32 irradiates the lens 4 without shielding, and is projected to the road surface in front through the lens 4 to form a far-reaching lighting shape.

As an embodiment of the head lamp module of the present invention, as shown in fig. 6, the light shielding plate 3 can be switched between the first position a and the second position B by translation. The translation switching of the shade panel 3 can be realized by a gear and a rack in cooperation driving, can be realized by an electromagnet attraction manner, and can also be realized by any other possible conventional technical means known by those skilled in the art. The switching of the light shielding plate 3 is realized in a translation mode, and the stability of the light shielding plate 3 is higher. As another embodiment of the headlamp module of the present invention, as shown in fig. 7, the light shielding plate 3 can be selectively switched between the first position a and the second position B. The rotation switching of the light shielding plate 3 can be realized by a motor driving mode, and can also be realized by other modes such as crankshaft driving and the like. The switching of the light shielding plates 3 is realized in a rotating mode, and the realization mode is simpler.

Through the technical scheme, the utility model discloses a head-light module is provided with reflection of light face 32 on the light screen 3 to be provided with speculum 5, when light that shines out from the light-emitting window of anti-light cup 2 at light screen 3 shelters from formation short-distance beam light shape, can be with the light reflection that shelters from by light screen 3 to speculum 5, and reflect to lens 4 through speculum 5, form the auxiliary lighting light shape, realized being sheltered from the reuse of light, improved the illuminance of head-light module short-distance beam light shape and the light efficiency of short-distance beam illumination.

In the preferred embodiment of the present invention, the setting of the plane or curved surface form of the reflecting surface of the reflector 5 is different, so that the light reflected by the reflecting surface 32 onto the reflecting surface of the reflector 5 is reflected toward the lens 4 in different directions and different distribution forms, and the optimal design and supplement are performed on different parts of the formed auxiliary illumination shape. The mobile setting of light screen 3 for light that light screen 3 optionally shines from the light-emitting window of anti-light cup 2 shelters from or does not shelter from, makes the utility model discloses a head-light module can form the short-distance beam light shape, also can form the high beam light shape.

The utility model discloses a head-light is owing to used the utility model discloses a head-light module, the light efficiency of head-light is higher, and luminance is also higher.

The utility model discloses a vehicle is owing to used the utility model discloses a head-light also has above-mentioned beneficial effect.

In the description of the present disclosure, reference to the terms "an embodiment," "some embodiments," "an implementation," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In the present disclosure, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. A headlamp module comprises a light source (1), a reflective cup (2), a light screen (3) and a lens (4), wherein the light source (1) is arranged at a first focus of the reflective cup (2), a cut-off line forming structure (31) is arranged on the light screen (3), the cut-off line forming structure (31) is arranged at a second focus area of the reflective cup (2), the lens (4) is arranged on a light-emitting light path of the reflective cup (2), the focus of the lens (4) is positioned at the cut-off line forming structure (31) area, the headlamp module is characterized in that a reflective surface (32) is further arranged on the light screen (3), the reflective surface (32) is arranged on one surface of the light screen (3) facing the reflective cup (2), and a reflector (5) is further arranged between the light screen (3) and the reflective cup (2), the reflector (5) is suitable for reflecting the light rays reflected by the light reflecting surface (32) to the lens (4) so as to form an auxiliary lighting light shape.

2. A headlamp module according to claim 1, wherein the visor (3) is arranged perpendicularly to the optical axis of the lens (4), the cut-off line forming structure (31) being located on the optical axis of the lens (4).

3. A headlamp module according to claim 1, wherein the reflecting surface of the reflector (5) is a flat surface or a curved surface.

4. A headlamp module according to claim 1, wherein the reflecting surface of the reflector (5) is composed of a plurality of planes.

5. A headlamp module according to any of claims 1-4, wherein a highly reflective material layer is provided on the reflective surface (32).

6. The headlamp module as defined in claim 5, wherein the layer of highly reflective material is an aluminum or silver plated layer.

7. The headlamp module according to any of claims 1 to 4, wherein the visor (3) is adapted to be switched between a first position (A) and a second position (B), wherein the cut-off line forming structure (31) is located in the second focal region of the reflector cup (2) when the visor (3) is switched to the first position (A), and wherein the visor (3) avoids the light exit path of the reflector cup (2) when the visor (3) is switched to the second position (B).

8. The headlamp module according to claim 7, wherein the visor (3) is switchable between the first position (A) and the second position (B) by means of translation or rotation.

9. A headlamp characterized by comprising a headlamp module according to any one of claims 1 to 8.

10. A vehicle characterized by comprising a headlamp according to claim 9.