CN210662689U

CN210662689U - Reflection-type headlamp module, headlamp and vehicle

Info

Publication number: CN210662689U
Application number: CN201921964269.6U
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: 2020-06-02
Anticipated expiration: 2029-11-13

Abstract

The utility model relates to a car lamp, and discloses a reflection-type headlamp module, which comprises a light source (1), a light-gathering element, a lens (4) and a reflector (5); the light-gathering element is suitable for gathering the light emitted by the light source (1) and projecting the light; the reflector (5) is arranged on a light-emitting path of the light-condensing element, so that light rays emitted by the light source (1) can be reflected to the lens (4) and projected out through the lens (4) to form an illumination light shape. The utility model discloses a reflection-type head-light module has changed the propagation light path of the light that light source (1) sent, can effectively shorten the front and back size of module. The utility model also discloses a head-light and a vehicle, the front and back space of head-light occupies for a short time.

Description

Reflection-type headlamp module, headlamp and vehicle

Technical Field

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

Background

An existing headlamp module is generally shown in fig. 1 and comprises a light source 1, a reflecting cup 2, a light shielding plate 3 and a lens 4, wherein the light emitting center of the light source 1 is arranged at a first focus of the reflecting cup 2 similar to an ellipsoid, the light emitted by the light source 1 and approaching lambert divergence is converged at a second focus of the reflecting cup 2 by the reflecting cup 2, and a light and shade boundary is formed by shading the light shielding plate 3 corresponding to dipped light shape and imaging the road surface by the lens 4. The focal point of the lens 4 is usually set at the second focal point of the reflector 2, and the light source 1, the first focal point of the reflector 2, the second focal point of the reflector 2 and the optical axis of the lens 4 are set on the same straight line, so that the front-rear length of the headlamp module is inevitably greater than the sum of the focal length f1 of the lens 4 and the distance f2 between the first focal point and the second focal point of the reflector. Therefore, the front and rear length of the headlamp module is limited, the front and rear diameters of the automobile lamp using the headlamp module are longer, the automobile lamp cannot be freely reduced according to design requirements, and the appearance design of the automobile lamp is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a reflection-type head-light module is provided, the front and back size of module can effectively be shortened.

The utility model discloses the technical problem that further will solve provides a head-light, and the front and back space of this car light occupies for a short time.

The utility model discloses the technical problem who still remains to solve provides a vehicle, and the front and back space of head-light of this vehicle occupies for a short time.

In order to solve the above technical problem, an aspect of the present invention provides a reflection-type headlamp module, including a light source, a condensing element, a lens, and a reflector; the light condensing element is suitable for condensing the light rays emitted by the light source and projecting the light rays; the reflector is arranged on a light-emitting path of the light-condensing element so as to be suitable for reflecting light rays emitted by the light source to the lens and projecting the light rays out through the lens to form an illumination light shape.

Preferably, the light condensing element is a light reflecting cup, the light reflecting cup is a curved surface with a first focus and a second focus, and the light source is located at the first focus of the light reflecting cup. In the preferred technical scheme, the light reflecting cup is simple in structure, and can better converge the light emitted by the light source at the first focus close to the cup bottom to the second focus far away from the cup bottom.

Preferably, the optical axis of the light reflecting cup and the optical axis of the lens form an included angle of 60-120 degrees. Through this preferred technical scheme, optimize the contained angle between the optical axis of anti-light cup and the optical axis of lens, make the utility model discloses a length around the reflection-type head-light module, the length on the optical axis side of lens can be shorter promptly to can reduce illumination light shape through the deformation that the speculum reflection arouses, also can prevent that the position of lens from producing with anti-light cup simultaneously and interfering.

Further preferably, an included angle formed by the optical axis of the light reflecting cup and the optical axis of the optical lens is 90 °. In this preferred technical scheme, when the contained angle between the optical axis of anti-light cup and the optical axis of lens is 90, the utility model discloses a length is shorter around the reflection-type head-light module, and illumination light shape warp the minimum that arouses through the reflector reflection. Meanwhile, the position of the lens is not easy to interfere with the reflecting cup.

Preferably, the reflecting cup is in an ellipsoid shape or an ellipsoid-like shape. In the preferred technical scheme, the light emitted by the light source positioned at the first focus can be better converged to the second focus by the ellipsoidal or ellipsoid-like reflecting cup, so that the converging performance is good, and the processing is convenient. The ellipsoid-like surface is a shape similar to an ellipsoid and is formed by performing certain adaptive adjustment for light shape optimization on the basis of the shape of the ellipsoid.

Preferably, the utility model discloses a reflection-type head-light module still includes the light screen, be equipped with the cut-off line on the light screen and form the structure, the cut-off line forms the structure and is located the second focus department of anti-light cup. Through this preferred technical scheme, the light screen can shelter from the light that jets out from reflection of light cup, forms the light and shade cut-off line of illumination light shape. When the cut-off line forming structure is positioned near the second focus of the reflecting cup, the shading effect of the shading plate is good, and the definition of the cut-off line is high.

Preferably, the second focal point of the reflector cup is located at a focal point of the lens relative to a mirror image point formed by the reflecting surface of the reflector. In the preferred technical scheme, the light rays of the irradiation type reflector converged by the reflecting cup are reflected by the reflector and then emitted to the lens, which is equivalent to that the light rays are directly emitted to the lens from the second focus of the reflecting cup relative to the mirror image point of the reflecting surface of the reflector, namely the focus of the lens, and can form a clearer illumination light shape through the projection of the lens.

Through the preferred technical scheme, the included angle α between the reflecting surface of the reflector and the optical axis of the lens is adjusted, so that the direction of the light rays reflected by the reflector and irradiated to the lens can be adjusted, and the height of the formed illumination light shape position can be adjusted.

Preferably, the light reflecting surface of the reflector is a flat surface or a curved surface. Through the preferred technical scheme, the reflector of the plane reflecting surface is simple and convenient to process, and the light shape forming mode is simple. The reflector with the curved surface reflecting surface can adjust and optimize the specific part of the illumination light shape, the formed illumination light shape is more reasonable, and the illumination effect is better.

Preferably, a highly reflective material layer is disposed on the reflective surface of the reflector. Through this preferred technical scheme, the high reflection of light material layer can improve the light reflection effect of speculum, improves the utilization ratio of the light that the light source sent to improve the luminance of illumination light shape.

Preferably, the highly reflective material layer is an aluminum plated layer or a silver plated layer. In the preferred technical scheme, the aluminized high-light-reflection material layer is low in cost, but the stability of the plating layer is poor. The plated layer of the silver-plated high-light-reflection material layer has high stability, good reflection effect and higher cost.

The utility model discloses the second aspect provides a head-light, includes in this head-light the utility model discloses the reflection-type 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 reflection-type head-light module shines to lens after reflecting the light that shines from condensing element through the speculum, forms the illumination light shape. The reflector changes the light irradiation direction, so that the light emitting direction of the light condensing element and the optical axis of the lens are not arranged on the same straight line any more, and the length of the headlamp module in the front and rear directions can be effectively reduced. The focus of the lens is arranged at the mirror image point of the second focus of the reflector relative to the reflecting surface of the reflector, so that the definition of the illumination light shape of the headlamp module is higher. The reflecting surfaces of the reflectors in different shapes can be used for adjusting the illumination light shape formed by the headlamp module, so that the illumination light shape is optimized, and the illumination effect is improved. The utility model discloses a head-light, the front-back footpath of lamp body is short, and the light shape definition is high. 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 view of a conventional headlamp module;

FIG. 2 is a schematic front view of an embodiment of the headlamp module of the present invention;

FIG. 3 is a schematic side view of an embodiment of the headlamp module of the present invention;

FIG. 4 is a schematic view of the cross-sectional structure at the position A-A of FIG. 2;

fig. 5 is a schematic view of an illumination light path of an embodiment of the headlamp module of the present invention;

FIG. 6 is a schematic view of the illumination light path focal position of FIG. 5;

FIG. 7 is a schematic view showing the positional relationship of the components of an embodiment of the headlamp module of the present invention;

FIG. 8 is a schematic view of the illumination path of FIG. 7;

fig. 9 is a schematic view of the screen illumination of one embodiment (low beam) of the head lamp module of the present invention;

fig. 10 is a schematic view of the illuminance of the (high beam) screen according to an embodiment of the present invention.

Description of the reference numerals

1 light source 2 reflecting cup

3 light shielding plate 4 lens

5 mirror 6 focal position

7 focal mirror position

Detailed Description

In the present invention, in the case where no explanation is given to the contrary, the orientation or positional relationship indicated by the use of the orientation words such as "front, rear, upper and lower" is based on the orientation or positional relationship after the reflection type headlamp module or the headlamp is normally mounted on the vehicle of the present invention. 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. 2 to 4, an embodiment of the reflection type headlamp module of the present invention includes a light source 1, a condensing element, a lens 4, and a reflector 5. The light-condensing element can condense the divergent light emitted from the light source 1 to project in a specific direction. The light-gathering element can be a reflecting cup, a condenser or any other optical element meeting the requirement. The light source 1 is arranged at different relative positions of the light-condensing element according to different selected light-condensing elements. If a reflecting cup is selected, the light source 1 is arranged at the focus of the reflecting cup at the bottom of the cup; when the condenser is selected, the light source 1 is arranged at the light inlet of the condenser. The light source 1 is disposed in a position to facilitate the collection and emission of the light emitted from the light source 1. The reflector 5 is arranged on the light-emitting path of the light-gathering element, can emit the light source 1, changes the original irradiation direction of the light gathered by the light-gathering element, reflects the light to the lens 4, and projects the light through the lens 4 to form an illumination light shape. Due to the change of the light irradiation direction, the direction of the light emitted from the light condensing element and the direction of the light entering the lens 4 are not limited on the same straight line any more, so that the arrangement positions of the light condensing element and the lens 4 are changed, and the front and back length of the headlamp module is effectively shortened.

As shown in fig. 2 to 5, in some embodiments of the reflection type headlamp module of the present invention, the light condensing element is a reflector cup 2. The reflector cup 2 is a curved surface having a first focal point and a second focal point, and the positions of the first focal point and the second focal point on the curved surface are generally symmetrical with respect to the center of the curved surface. And a light outlet of the reflecting cup 2 is formed at one end of the reflecting cup 2 where the second focus is located. That is, the focus at the end where the light outlet is located is the second focus, and the focus at the end opposite to the light outlet is the first focus. The light source 1 is located at the first focus of the reflection cup 2, and light emitted by the light source 1 can be converged towards the second focus direction of the reflection cup 2 through reflection of the reflection cup 2, is emitted from the light outlet of the reflection cup 2, and continues to irradiate forwards along the straight line direction. The reflector 5 is arranged on the light-emitting path of the reflector cup 2, and when light emitted from the light-emitting opening of the reflector cup 2 irradiates the reflector 5, the original irradiation direction is changed under the reflection action of the reflector 5, the light irradiates the lens 4, and is projected out through the lens 4 to form an illumination light shape.

As shown in fig. 4, in some embodiments of the reflective headlamp module of the present invention, an included angle formed by an optical axis of the reflector 2 and an optical axis of the lens 4, which is formed by a line connecting the first focal point and the second focal point of the reflector 2, is 60 to 120 °. Since the light of the headlamp module is finally projected forward through the lens 4 to form an illumination light shape, the optical axis direction of the lens 4 is substantially the front-rear direction of the headlamp module. When the included angle formed by the optical axis of the reflector 2 and the optical axis of the lens 4 is large, the length of the headlamp module in the front-back direction is large, and when the included angle formed by the optical axis of the reflector 2 and the optical axis of the lens 4 is small, the reflector 2 and the lens 4 are easily interfered with each other, and the arrangement position is affected. The reasonable arrangement positions of the reflector cup 2 and the lens 4 can be ensured while the front and rear lengths of the headlamp module are reduced by the proper included angle.

As shown in fig. 4, according to an embodiment of the reflection type headlamp module of the present invention, an angle formed between an optical axis of the reflector 2 and an optical axis of the lens 4 is 90 °. At this time, the optical axis of the reflector 2 is perpendicular to the optical axis of the lens 4, the positions of the reflector 2 and the lens 4 do not interfere with each other, the front and back length of the headlamp module at this time is mainly limited by the focal length of the lens 4, and the front and back length of the module is smaller.

In some embodiments of the reflective headlamp module of the present invention, as shown in fig. 3 and 4, the reflective cup 2 has an ellipsoidal shape, and in other embodiments, the reflective cup 2 has an ellipsoidal-like shape. Specifically, the cup body of the light reflecting cup 2 may be in the shape of a cut ellipsoid or an ellipsoid-like surface, that is, the ellipsoid or the ellipsoid-like surface is cut in the direction parallel to the major axis, and then the obtained partial ellipsoid or ellipsoid-like surface is cut in the direction parallel to the minor axis. The light source 1 is arranged at a first focus of the reflector cup 2. The utility model discloses do not restrict the position to above-mentioned section, can not cut open at the major axis direction even to adapt to different light source requirements. The cut in the minor axis direction forms the light outlet of the reflector cup 2. The light emitted by the light source 1 positioned at the first focus can be uniformly converged to the second focus by the ellipsoid-shaped reflecting cup 2, so that the formed light shape is more regular. The reflecting cup 2 similar to the ellipsoid is adaptively adjusted on the basis of the ellipsoid so as to change the local light reflection direction in a targeted manner and finally change the brightness of the local light of the illumination light shape. And auxiliary structures can be added on the basis of the ellipsoid, so that the formed light shape is more suitable for the illumination requirement of the vehicle.

In some embodiments of the reflective headlamp module of the present invention, as shown in fig. 3 and 4, the reflective headlamp module further includes a light shielding plate 3. The light shielding plate 3 is provided with a cut-off line forming structure to partially shield the light emitted from the light outlet of the light reflecting cup 2, so as to form a lighting light-shaped light and shade cut-off line. The cut-off line forming structure is arranged at the second focus of the reflecting cup 2, so that the light and shade cut-off line of the illumination light shape is clearer. The headlamp module provided with the shade 3 can form a low beam shape with a cut-off line as shown in fig. 9 and can be used as a low beam module, and the headlamp module without the shade 3 can form a high beam shape without a cut-off line as shown in fig. 10 and can be used as a high beam module. The light screen 3 can also be set to movable structure, and when the light form of passing light is required to be formed, the light screen 3 moves to the second focus of the light reflecting cup 2 to shield the light emitted from the light outlet of the light reflecting cup 2, so that the light form of passing light with a cut-off line of light and shade is formed. When the high beam shape is required to be formed, the light shielding plate 3 is moved away from the second focus of the reflector cup 2, and the light emitted from the light outlet of the reflector cup 2 is reflected to the lens 4 without being blocked, so that the high beam shape is formed.

As an embodiment of the reflection-type headlamp module of the present invention, as shown in fig. 6 to 8, the second focus of the reflector cup 2 is located at the focus position 6, and the focus position 6 forms a mirror image point with respect to the reflection surface of the reflector 5: focal mirror position 7. That is, the line connecting the focal position 6 and the focal mirror position 7 is perpendicular to the mirror surface, and the distances between the focal position 6 and the focal mirror position 7 and the mirror surface are both D. The focal point of the lens 4 is set at the focal mirror position 7. The light emitted by the light source 1 is reflected by the reflector cup 2 and converged to the second focus of the reflector cup, namely the focus position 6. The light is irradiated from the focal point position 6 to the reflecting mirror 5, and is irradiated to the lens 4 by the reflection of the reflecting mirror 5. As shown in fig. 8, the light emitted to the lens 4 is also directly irradiated to the lens 4 as the light emitted from the focal point mirror position 7.

As shown in fig. 7, the front-rear length of the reflection-type headlamp module of the present invention is limited mainly by the focal length f1 of the lens 4, and the distance f2 between the first focal point and the second focal point of the reflector cup 2 no longer limits the front-rear length of the headlamp module. Further, the focal point of the lens 4 is set at the focal point mirror position 7 located behind the lens, and the front-rear length of the headlamp module can be further shortened.

In some embodiments of the reflective headlamp module of the present invention, as shown in fig. 7, the included angle between the reflective surface of the reflector 5 and the optical axis of the lens 4 is α, and this included angle α can be adjusted, the adjustment structure can be a mechanical adjustment device, or an electrical control adjustment device, which can be implemented by a plurality of conventional technical means, and will not be described herein.

In some embodiments of the reflective headlamp module of the present invention, the reflective surface of the reflector 5 is a flat surface. The planar reflecting surface can reflect the light irradiated from the outlet of the reflecting cup 2 to the lens 4 according to the original state, and the light is not different from the light emitting direction of the reflecting cup 2 directly arranged by the lens 4. In yet other embodiments, the light-reflecting surface of the reflector 5 is curved. The light shape that the light that the back light surface of curved surface was shone from the export of reflection of light cup 2 and was come formed can carry out the secondary and change, can design the light shape that the head-light module formed more nimble.

In some embodiments of the reflective headlamp module of the present invention, a highly reflective material layer is disposed on the reflective surface of the reflector 5. The high-reflectivity material has high reflectivity, can reflect more incident light and reduce light loss. The existing high-reflectivity material is mainly a metal material, and the metal material is relatively convenient to process.

In some embodiments of the reflective headlamp module of the present invention, the high reflective material layer on the reflective surface of the reflector 5 is an aluminum or silver plated 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, and the service life is long.

Through the technical scheme, the utility model discloses a reflection-type head-light module, the setting of speculum 5 can reflect the light that assembles through condensing element, has changed the original direction of illumination of light for condensing element no longer occupies the length on the head-light module fore-and-aft direction, has effectively reduced the fore-and-aft length of head-light module. If the headlamp module takes the reflector 2 as a light-gathering element, the reflector 5 changes the original irradiation direction of light, breaks through the limitation that the front-back length of the traditional headlamp module must be larger than the sum of the focal length f1 of the lens 4 and the distance f2 between the first focal point and the second focal point of the reflector 2, and can shorten the front-back length of the headlamp module to the length equivalent to the focal length f1 of the lens 4. The angle adjustment of the reflector 5 and the optical axis of the lens 4 enables the height position of the light shape formed by the headlamp module to be conveniently adjusted. Through the design to the shape of the reflecting surface of the reflector 5, the light shape of the headlamp module can be adjusted, so that the lighting effect of the headlamp module is better.

The utility model discloses a head-light is owing to used the utility model discloses a reflection-type head-light module, length can design littleer around the head-light, has increased the degree of freedom of head-light design. And the adjustment of the illumination light shape is more convenient.

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 reflection-type headlamp module is characterized by comprising a light source (1), a condensing element, a lens (4) and a reflector (5); the light-gathering element is suitable for gathering the light emitted by the light source (1) and projecting the light; the reflector (5) is arranged on a light-emitting path of the light-condensing element, so that light rays emitted by the light source (1) can be reflected to the lens (4) and projected out through the lens (4) to form an illumination light shape.

2. Reflective headlamp module according to claim 1, wherein the light concentrating element is a reflector cup (2), the reflector cup (2) being curved with a first focus and a second focus, the light source (1) being located at the first focus of the reflector cup (2).

3. Reflective headlamp module according to claim 2, wherein the angle formed by the optical axis of the reflector cup (2) and the optical axis of the lens (4) is 60-120 °.

4. Reflective headlamp module according to claim 3, wherein the angle formed by the optical axis of the reflector cup (2) and the optical axis of the lens (4) is 90 °.

5. Reflective headlamp module according to claim 2, wherein said reflector cup (2) has an ellipsoidal or ellipsoid-like shape.

6. Reflective headlamp module according to claim 2, further comprising a visor (3), wherein a cut-off line forming structure is provided on the visor (3), said cut-off line forming structure being located at a second focus of the reflector cup (2).

7. Reflective headlamp module according to claim 6, wherein the second focal point of the reflector cup (2) is located at a focal point of the lens (4) with respect to a mirror point formed by the reflecting surface of the reflector (5).

8. Reflective headlamp module according to claim 1, wherein the reflector (5) is adapted to adjust the angle between the reflective surface of the reflector (5) and the optical axis of the lens (4).

9. Reflective headlamp module according to claim 1, wherein the reflective surface of the reflector (5) is planar or curved.

10. Reflective headlamp module according to any of claims 1 to 9, wherein a highly reflective material layer is provided on the reflective surface of the reflector (5).

11. The reflective headlamp module of claim 10, wherein the layer of highly reflective material is an aluminum or silver plated layer.

12. A headlamp comprising a reflective headlamp module according to any one of claims 1 to 11.

13. A vehicle characterized by comprising a headlamp according to claim 12.