CN111189034A

CN111189034A - Car light passing lens, passing module and car

Info

Publication number: CN111189034A
Application number: CN202010123004.4A
Authority: CN
Inventors: 董世琨; 张赫; 陈万青; 严梦; 刘阳
Original assignee: HASCO Vision Technology Co Ltd
Current assignee: HASCO Vision Technology Co Ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-05-22

Abstract

The invention relates to the field of automobile lighting equipment, and discloses a vehicle lamp dipped headlight lens which comprises a rear surface and a front surface; the lower part of the rear surface is provided with a shading layer, and light can form a low beam type with a cut-off line after passing through the vehicle lamp low beam lens. The invention also provides a dipped beam module which comprises a light source, a reflector and the vehicle lamp dipped beam lens, wherein the dipped beam module omits a light screen part, simplifies the structure of the dipped beam module, reduces the failure rate and lowers the production and use cost. The invention also provides a vehicle with the low beam module.

Description

Car light passing lens, passing module and car

Technical Field

The invention relates to the technical field of automobile headlamps, in particular to an automobile lamp dipped beam lens, a dipped beam module and an automobile.

Background

The design of the automobile dipped headlight should not affect the sight of the driver, and simultaneously can ensure that the roadside in the driving direction has enough irradiation distance, and the pedestrian on the roadside is early found to ensure the driving safety. This requires that the automotive low beam have a low left side and a high right side light pattern. The national standard requires that the automobile dipped headlight can form a clear cut-off line on a light distribution screen which is 25 meters away, and the cut-off line forms a specific shape which is low on the left and high on the right.

At present, the dipped beam modules of most car lamps are composed of similar light path structures, namely a light source, a reflector, a shading plate and a lens. The light directly emitted by the light source and the light emitted by the light source and reflected by the reflector are refracted by the lens under the shielding of the light shading plate to form a light and shade cut-off line and a specific light type in front of the automobile, and the shape of the light shading plate determines the shape of the light and shade cut-off line. The short-distance beam module of the structure has more parts and more complex structure.

Disclosure of Invention

The invention aims to solve the problems of more parts and complex structure of a low beam module in the prior art, and provides a low beam lens of a vehicle lamp, which can form a cut-off line and a low beam type, simplifies the structure of a low beam module, reduces the failure rate of the low beam module and reduces the production and use cost.

The invention provides a low-beam module, which solves the problems of more parts and complex structure caused by the fact that the existing low-beam module adopts a light screen to shield to form a low-beam light type with a cut-off line, and avoids the change of the low-beam light type caused by the deviation of the relative position of the light screen and a lens. Has the advantages of simple structure and low failure rate.

The invention also provides a vehicle, the low beam module provided by the invention is adopted, the problem that the low beam shape of the existing vehicle is changed after long-term running vibration is overcome, and the low beam module has the advantages of stable light shape and low maintenance cost.

In order to achieve the above object, an aspect of the present invention provides a vehicle lamp low beam lens including a rear surface and a front surface; the lower part of rear surface is equipped with the light shield layer to the low beam light path who shelters from the car light forms the low beam light type that has the bright and dark cut-off line.

Preferably, the rear surface is a flat surface, the front surface is a convex quadric surface, and the focal point is on the rear surface. In this preferred embodiment, it is convenient to provide the light shielding layer on the plane, and the shape of the cutoff line can be easily controlled. When the focus of the front surface is located on the rear surface, the edge of the light shielding layer provided on the rear surface is located at the focus of the low beam lens, and the cutoff line formed by the low beam lens is clearer.

Further preferably, the front surface is a convex spherical surface. In this preferred technical scheme, the processing of sphere is easier, and moreover, the formation of image is comparatively simple, and it is comparatively convenient to the control of cut-off line and light type.

Preferably, the light shielding layer includes a black light shielding paint layer. The black shading coating layer in the optimized technical scheme has good shading effect and is convenient to process.

Preferably, a reflecting layer is arranged outside the shading layer. Through this preferred technical scheme, the reflector layer can reflect the light that shines the shading layer part back light source light path and recycle, has effectively improved the light efficiency of passing lamp.

The invention provides a low beam module, which comprises a lens, wherein the lens adopts the vehicle lamp low beam lens provided by the first aspect of the invention.

Preferably, the low beam module of the present invention includes a light source, a reflector and the lens, the light source is disposed behind the lens, between the reflector and the lens. Through this preferred technical scheme, the light that the light source produced can shine directly and shoot to lens through the reflection of speculum simultaneously, improves the light efficiency of light source.

Preferably, the light source comprises an LED lamp, the LED lamp is mounted on a circuit board, and the circuit board is provided with a heat sink. In this preferred technical scheme, install the radiator on the circuit board and can dispel the heat for the LED lamp betterly, therefore can choose for use the LED lamp of more powerful.

A third aspect of the invention provides a vehicle including the low beam module provided in the second aspect of the invention.

Through the technical scheme, the shading layer is arranged on the lower portion of the rear surface of the vehicle lamp low-beam lens, a low-beam light path of a vehicle lamp can be shaded to form a low-beam light type with a light and shade cut-off line, and the light type is strong in controllability and high in stability. The near-beam module simplifies the parts of the shading plate in the light path, simplifies the structure of the near-beam module, reduces the fault rate of the near-beam module and reduces the production and use cost.

Drawings

FIG. 1 is a schematic view of one embodiment of a vehicle light passing lens of the present invention;

FIG. 2 is a schematic cross-sectional view of one embodiment of a vehicle light passing lens of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a schematic view of one embodiment of the low beam module of the present invention.

Description of the reference numerals

1 light source 2 circuit board

3 mirror 4 lens

41 rear surface 42 front surface

43 light-shielding layer 44 focus

45 reflecting layer 46 lens cut-off boundary

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description is provided for purposes of illustration and explanation and is not intended to limit the scope of the invention.

One embodiment of the low beam lens for a vehicle lamp of the present invention is shown in fig. 1, and includes a rear surface 41 and a front surface 42, and the lens between the rear surface 41 and the front surface 42 forms a convex lens to function as a light converging lens. A light-shielding layer 43 is provided on the lower portion of the rear surface 41, and the boundary of the upper portion of the light-shielding layer 43 forms a lens cut-off boundary 46, and the shape of the lens cut-off boundary 46 corresponds to the shape of the desired cutoff line. Light emitted by the light source is emitted to the automobile lamp dipped light lens, and the light on the upper part of the lens is irradiated on a road surface in front of an automobile to play a role in illumination under the convergence action of the lens; the light below the lens is shielded by the light shielding layer 43, and a shadow is formed in the upper area in front of the vehicle, so that the light is prevented from influencing the sight of drivers or pedestrians who move in opposite directions to cause safety accidents. The lens cut-off boundary 46 forms a cut-off line of a low beam shape under irradiation of light. The light passing through the vehicle lamp dipped beam lens can form a dipped beam type with a lower left and a higher right, which meets the national standard.

The peripheral shape of the vehicle lamp dipped lens can be made into various shapes according to requirements, generally circular shapes are more, and various shapes such as oval, semicircular or semi-oval shapes can also be made, and the shapes are not listed in the specification.

In some embodiments of the low beam lens for a vehicle lamp of the present invention, as shown in fig. 2, the rear surface 41 is a plane, the reflection amount of the incident light by the plane-shaped rear surface is relatively small, the light shielding layer 43 is conveniently disposed, and the control of the cut-off line and the low beam type is relatively easy. The front surface 42 is a convex quadric surface, the focal point 44 of the front surface 42 is on the rear surface 41, and the lens cut boundary 46 of the light-shielding layer 43 is located near the focal point 44. At this time, the front surface 42 of the convex quadric surface can uniformly converge the light emitted from the light source in front of the vehicle to form a low beam type, and the cutoff line formed by the lens cutoff boundary 46 is clearer.

In some embodiments of the vehicle light passing lens of the present invention, the front surface 42 is a convex spherical surface. The processing of the spherical surface is easier, and the control of imaging is simpler.

In some embodiments of the vehicular lamp low beam lens of the present invention, the light-shielding layer 43 includes a black light-shielding paint layer. The light-shielding layer 43 made of any material capable of shielding light can shield light, and the type of color and the form of the light-shielding layer are not limited, and the color may be light-opaque or light-reflective, and the light-shielding layer may be formed in the form of a coating, a plating layer, or an adhesive layer. The black material used in the embodiment has better light absorption performance, and the shading coating layer formed by coating the used paint is convenient to process, strong in adhesiveness and lower in cost.

In some embodiments of the low beam lens for a vehicle lamp of the present invention, as shown in fig. 3, a reflective layer 45 is provided outside the light shielding layer 43. The reflecting layer 45 can reflect the light emitted from the near light source back to the light source path for reuse, thereby improving the light efficiency of the near light source. The reflective layer 45 is made of a high reflective material, and the processing process can be various, including plating, pasting, and the like.

One embodiment of the low beam module of the present invention includes a lens 4, and the lens 4 can form a low beam with a cut-off line without depending on the function of a light shielding plate by using the low beam lens of the vehicle lamp of any embodiment of the present invention.

In some embodiments of the low beam module of the present invention, as shown in fig. 4, the low beam module of the present invention comprises a light source 1, a reflector 3 and a lens 4, the light source 1 being disposed behind the lens 4 between the reflector 3 and the lens 4. Part of the light emitted by the light source 1 is emitted to the reflector 3, and the reflected light is emitted to the lens 4 under the reflection action of the reflector 3. A part of the light emitted by the light source 1 is directed towards the lens 4. The light emitted to the lens 4 forms a low beam pattern in front of the vehicle by the lens 4. The light source 1 can be arranged on the focus of the reflector 3, at this time, the light emitted by the light source 1 is reflected by the reflector 3 to form mutually parallel reflected light rays to irradiate the lens 4, and the light rays have better convergence performance.

When the lens 4 is provided with the reflecting layer 45, the light reflected by the reflecting layer 45 is reflected by the reflector 3 and then emitted to the lens 4 to participate in the low-beam illumination, so that the light efficiency of the low-beam module is improved.

In some embodiments of the low beam module of the present invention, the light source 1 is an LED lamp, and the LED lamp is mounted on the circuit board 2, and the circuit board 2 is provided with a heat sink. The LED lamp has high luminous efficiency and long service life, and reduces energy consumption and maintenance cost. The radiator can in time distribute away the heat that the LED lamp produced, prevents that the LED lamp from damaging because of the high temperature. Under the high-efficient radiating assurance of radiator, the power of LED lamp can be chooseed for use and is got bigger, improves the illuminating effect of passing through the optical module.

The automobile lamp dipped beam lens combines the function of the shading plate and the function of the lens together, and can converge the light emitted by the dipped beam light source into a dipped beam with a cut-off line. In the preferred embodiment of the low beam lens for a vehicle lamp according to the present invention, the light reflecting layer 45 can reflect the light emitted toward the light shielding layer 43 back to the light source light path for reuse, and the light efficiency of the low beam module can be improved. The dipped beam module of the invention adopts the dipped beam lens of the vehicle lamp, thereby simplifying the light screen parts which are necessary in the traditional dipped beam optical path, simplifying the structure of the dipped beam module, reducing the failure rate of the dipped beam module and lowering the production and use cost of the vehicle lamp.

In addition, the vehicle provided by the invention adopts the low beam module of any embodiment of the invention, the low beam stability is high, and the maintenance cost of the vehicle is reduced.

Reference throughout this specification to "one embodiment," "some embodiments," or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. In this specification, the schematic representations thereof do not necessarily have to be directed to the same embodiment.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the specific features in any suitable way, and the invention will not be further described in relation to the various possible combinations in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. A vehicular lamp low beam lens characterized by comprising a rear surface (41) and a front surface (42); a light shielding layer (43) is arranged at the lower part of the rear surface (41) to shield a low beam light path of the vehicle lamp to form a low beam light type with a cut-off line.

2. A vehicle light low beam lens according to claim 1, characterized in that the rear surface (41) is a plane surface, the front surface (42) is a convex quadratic surface, and a focal point (44) thereof is on the rear surface (41).

3. Vehicle light low beam lens according to claim 2, characterized in that the front surface (42) is a convex spherical surface.

4. A vehicular lamp low beam lens according to claim 1, wherein the light-shielding layer (43) comprises a black light-shielding paint layer.

5. A vehicular lamp low beam lens according to any one of claims 1 to 4, characterized in that a reflective layer (45) is provided outside the light-shielding layer (43).

6. A low beam module, characterized by comprising a lens (4), said lens (4) employing a vehicle lamp low beam lens according to any one of claims 1-5.

7. A low beam module according to claim 6, characterized by comprising a light source (1), a mirror (3) and the lens (4), the light source (1) being arranged behind the lens (4), between the mirror (3) and the lens (4).

8. A low beam module according to claim 7, characterized in that the light source (1) comprises LED lights mounted on a circuit board (2), the circuit board (2) having a heat sink thereon.

9. Vehicle characterized in that it comprises a low beam module according to any of claims 6-8.