CN114151762B

CN114151762B - Headlamp module, lamp and vehicle for motor vehicle

Info

Publication number: CN114151762B
Application number: CN202111508172.6A
Authority: CN
Inventors: 常洋
Original assignee: Magneti Marelli Automotive Components Wuhu Co Ltd
Current assignee: Magneti Marelli Automotive Components Wuhu Co Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2025-02-25
Anticipated expiration: 2041-12-10
Also published as: CN114151762A

Abstract

The invention provides a headlight module, a headlight and a motor vehicle, which belong to the technical field of the headlight, and comprise module units, wherein one or more module units are arranged, and the module units are configured to form light projection; the module unit comprises a light source, a primary optical element and a secondary optical element, wherein the primary optical element comprises an optical unit capable of controlling on and off independently, light rays emitted by the light source are condensed through the primary optical element, the condensed light rays form light projections through the secondary optical element, and the module unit is configured to be capable of moving from an initial position along a horizontal direction or a vertical direction so as to enable the light projections correspondingly formed according to the single module unit to overlap each other. The invention enables the corresponding light projections to be mutually overlapped, the pixels of the light projections can be finely controlled and adjusted along with the change of the relative positions of the module units, and the formed self-adaptive high beam or low beam light projection is partially light projection, so that the resolution of the self-adaptive high beam or low beam light projection is improved, and further, any desired light type combination can be generated.

Description

Headlight module for a motor vehicle, vehicle lamp and vehicle

Technical Field

The invention relates to the technical field of vehicle lamps, in particular to a head lamp module for a motor vehicle, a vehicle lamp and a vehicle.

Background

In the production assembly process of the car lamp, a plurality of optical module units are often integrated on the same mounting structure to form a car lamp module, then the car lamp module is assembled on the car lamp, the plurality of optical module units are respectively and independently mounted, each optical module unit forms a part of a light distribution light type, the light types of the optical module units are mutually overlapped to form a complete light distribution light type required by regulations.

The above requirements are achieved by a plurality of different optical module units, and each optical module unit is arranged according to the design requirement of the product, whether the dipped headlight or the high beam is. However, the prior art designs require the fabrication and assembly of different optical module units at a relatively high cost. In addition, in the actual assembly process, due to assembly errors, after each optical module unit is installed, a standard light distribution type cannot be accurately obtained according to a preset angle, and secondary adjustment is required to be performed on the position state of the optical module unit so as to achieve the light distribution type meeting the requirements.

According to the prior art, the Chinese patent publication number CN110067983A discloses a car lamp module, which comprises a light source and a convex lens, wherein a Fresnel lens is arranged between the light source and the convex lens, and light emitted by the light source is converged by the Fresnel lens and then is incident on the convex lens. The patent technology has the above-mentioned related problems.

The pixel-wise adjustable high-beam or low-beam light type self-adaptive high-beam or low-beam light type self-adaptive high-beam is applicable to adjustment of the maximum degree of freedom in the aspect of pixels, and accordingly adverse effects on glare and the like caused to oncoming vehicles are prevented.

Disclosure of Invention

In view of the drawbacks of the prior art, an object of the present invention is to provide a head lamp module for a motor vehicle, a vehicle lamp and a vehicle.

According to the invention, a headlight module for a motor vehicle is provided, comprising a module unit, which is provided with one or more module units, which are configured to form a light projection;

The module unit comprises a light source, a primary optical element and a secondary optical element, wherein the primary optical element is arranged corresponding to the light source, and the primary optical element and the secondary optical element are arranged corresponding to each other;

The primary optical element comprises an optical unit capable of controlling on/off individually, one or more optical units are arranged, and one or more optical units adopt the same optical configuration; the light incident surface or the light emergent surface of the secondary optical element is provided with microstructure patterns for scattering the light passing through the secondary optical element, the light emitted by the light source is condensed by the primary optical element, and the condensed light forms uniform light projection by the secondary optical element;

the light projection is composed of one or more projection units, one or more projection units are arranged at the same height, the upper edges and the lower edges of the one or more projection units are respectively positioned on the same straight line, and the plurality of projection units are adjacently arranged;

the module units are configured to be movable in a horizontal or vertical direction from an initial position so that light projections formed in correspondence with the individual module units overlap each other.

In some embodiments, the centerline of the primary optical element and the centerline of the secondary optical element are disposed coincident with each other.

In some embodiments, the primary optical element includes a first optical unit and a second optical unit, the first optical unit and the second optical unit are sequentially arranged, and the first optical unit and the second optical unit are disposed at the same reference height.

In some embodiments, the light projection is formed by one or more projection units, one or more projection units are formed at the same height, the upper edge and the lower edge of one or more projection units are respectively on the same straight line, and a plurality of projection units are adjacently arranged.

In some embodiments, the primary optical element is provided in a unitary structure.

In some embodiments, the width of the light projection is set in proportion to the number of primary optical units, and the size of the light projection is set by the number of primary optical units to have different display conditions

In some embodiments, the light projection comprises a plurality of area light patterns, a width of a minimum dimension of a single of the area light patterns is 15mm, and a length of a minimum dimension of a single of the area light patterns is 30mm.

In some embodiments, the light source is fixedly arranged on a circuit board, and the circuit board adopts a PCB board.

The invention also provides a vehicle lamp comprising the head lamp module for the motor vehicle, wherein one or more module units are arranged.

The invention also provides a vehicle, which comprises the vehicle lamp.

Compared with the prior art, the invention has the following beneficial effects:

1. According to the invention, through the primary optical element and the secondary optical element, the light emitted by the light source is concentrated through the primary optical element firstly, and then forms light projection through the secondary optical element, so that the space utilization efficiency and the light distribution efficiency of the car light module are higher;

2. According to the invention, by arranging the first optical units and the second optical units in different numbers, each independent regional light type can be independently controlled to be on or off, the size of light projection is different according to different display conditions of the number of primary optical elements, and dark areas caused by unsmooth connection among the regional light types are avoided;

3. the invention enables the corresponding light projections to be mutually overlapped through the combined use of the module units, the pixels of the light projections can be finely controlled and adjusted along with the change of the relative positions of the module units, and the formed self-adaptive high beam or low beam light projection is partially light projected, so that the resolution of the self-adaptive high beam or low beam light projection is improved, and further, any desired light type combination can be generated.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of a head lamp module for a motor vehicle according to the present invention;

FIG. 2 is a schematic view of the optical path of the headlamp module for a motor vehicle of the present invention;

FIG. 3 is a schematic diagram of a secondary optic of the present invention;

FIG. 4 is a schematic view of the projection of light generated by two optical units according to the present invention;

FIG. 5 is a schematic view of the projection of light generated by an optical unit according to the present invention;

FIG. 6 is a schematic view of a module unit of the present invention;

Reference numerals:

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.

Example 1:

Fig. 1 shows a schematic structure of a headlight module for a motor vehicle, fig. 2 shows a schematic light path of a headlight module for a motor vehicle, comprising a module unit, which is provided with one or more module units, which are configured to form a light projection 5. In this embodiment, the number of module units is N, where n=1, 2,3, 4 or greater than 4. The module unit comprises a light source 2, a primary optical element 3 and a secondary optical element 4, wherein the primary optical element 3 is arranged corresponding to the light source 2, and the primary optical element 3 is arranged corresponding to the secondary optical element 4. The light source 2 is fixedly arranged on the circuit board 1, and the circuit board 1 adopts a PCB. In the present embodiment, the center line of the primary optical element 3 and the center line of the secondary optical element 4 are disposed to coincide with each other. The primary optical element 3 comprises individually controllable on-off optical units provided with one or more of said optical units being of the same optical configuration. The light emitted from the light source 2 is condensed by the primary optical element 3, and the condensed light forms a light projection 5 by the secondary optical element 4.

The light projection 5 is constituted by one or more projection units including a first projection unit S30, a second projection unit S31, and the like, the first projection unit S30, the second projection unit S31, and the like being arranged at the same height, the upper edge and the lower edge thereof being arranged on the same straight line, respectively, and adjacent projection units appearing to be non-spaced. The module units are arranged so as to be movable in the horizontal or vertical direction from an initial position so that the light projections 5 formed in correspondence with the individual module units overlap each other.

The primary optical element 3 comprises a first optical unit 30 and a second optical unit 31, the first optical unit 30 and the second optical unit 31 are arranged in sequence, for example, as shown in fig. 2, the primary optical element 3 comprises 5 optical units, and the size of the light projection 5 will have different display conditions according to the number of the optical units. And the first optical unit 30 and the second optical unit 31 are arranged at the same reference height, the upper and lower edges of the light projection 5 formed by the plurality of optical units are on the same straight line, and the adjacent edges of the light projection 5 are mutually connected to form a complete light projection 5.

As shown in fig. 3, a schematic structural diagram of the secondary optical element is shown in fig. 3, and a microstructure pattern shown in fig. 3 is disposed on the light incident surface or the light emergent surface of the secondary optical element 4, and the microstructure pattern can break up emergent light, so that when the number of the first optical units 30 (the number of the second optical units is greater than 2) on the primary optical unit, the existence of the microstructure pattern can make the joint of each projection unit not generate obvious dark areas or bright lines, and make the whole light projection 5 show a uniform state.

The one or more optical units are correspondingly formed with light projections 5 of different sizes, the width of the light projections 5 being arranged in proportion to the number of primary optical units, and in one embodiment, as shown in fig. 4, a schematic view of the light projections 5 generated by two optical units is shown, as shown in fig. 5, a schematic view of the light projections 5 generated by one optical unit, and the width of the one or more optical units in the horizontal direction is variable, for example, as shown in fig. 4 and 5, the width is 2w and w, respectively. The individual projections may be controlled to light up or off separately.

The primary optical element 3 for forming the projection may be formed by sequentially arranging a plurality of independent first optical units 30 and second optical units 31. The light projection 5 includes a plurality of area light patterns, and the width of the minimum size of a single area light pattern is 15mm and the length of the minimum size of a single area light pattern is 30mm. Fig. 6 is a schematic view showing the projection of the module unit, and is a light projection 5 shape of the adaptive high beam and low beam formed by the lamp module of the present invention in a case where the projection unit (S30, S31.) is projected by the module unit P1 and the projection unit (S30 ', S31') is projected by the module unit P2.

As shown in fig. 6, the position of the light projection 5 projected by the module unit may be displaced according to the resolution requirement, and the module unit P2 has a displacement l in the horizontal direction relative to the module unit P1, so that the minimum controllable pixel in the horizontal direction of the light projection 5 is l, and similarly, the module unit P2 may also have a displacement in the vertical direction relative to the module unit P1, or the module unit P2 may have a displacement in both the horizontal direction and the vertical direction relative to the module unit P1, so as to satisfy different pixel requirements.

Example 2:

In embodiment 2, the primary optical element 3 is formed on the basis of embodiment 1, and the primary optical element 3 is arranged in an integrated structure, and the optical element 3 forming the area light pattern can be in an integrated structure, which has the advantages of high positioning accuracy and smoother connection between the area light patterns.

In the projection area with low pixel requirement, the primary optical element 3 can be arranged into two or more according to the practical application requirement to form light projections 5 with the width of 2w to nw, so that dark areas caused by unsmooth connection among light patterns in each area can be avoided, and in the area with high pixel requirement, the number of module units can be arranged into two or more, so that the two or more light projections 5 can be mutually overlapped to form the self-adaptive high beam or the light projection 5 of a part of low beam, thereby improving the resolution ratio of the self-adaptive high beam or the light projection 5 and further generating any desired light pattern combination.

In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.

Claims

1. A headlight module for a motor vehicle, characterized by comprising a module unit provided with one or more, the module unit being configured to form a light projection (5);

The module unit comprises a light source (2), a primary optical element (3) and a secondary optical element (4), wherein the primary optical element (3) is arranged corresponding to the light source (2), and the primary optical element (3) is arranged corresponding to the secondary optical element (4);

The primary optical element (3) comprises an optical unit capable of controlling on/off independently, wherein one or more optical units are arranged, and one or more optical units adopt the same optical configuration, a microstructure pattern for scattering light passing through the secondary optical element (4) is arranged on the light incident surface or the light emergent surface of the secondary optical element (4), the light emitted by the light source (2) is condensed through the primary optical element (3), and the condensed light forms uniform light projection (5) through the secondary optical element (4);

The module units are configured to move in a horizontal or vertical direction from an initial position so that light projections (5) formed in correspondence of the individual module units overlap each other.

2. A head lamp module for a motor vehicle according to claim 1, characterized in that the centre line of the primary optical element (3) and the centre line of the secondary optical element (4) are arranged coincident with each other.

3. The head lamp module for a motor vehicle according to claim 1, wherein the primary optical element (3) comprises a first optical unit (30) and a second optical unit (31), the first optical unit (30) and the second optical unit (31) being arranged in sequence, and the first optical unit (30) and the second optical unit (31) being arranged at the same reference height.

4. The headlamp module for motor vehicles according to claim 1, wherein the light projection (5) is constituted by one or more projection units, one or more of which are formed at the same height, the upper and lower edges of one or more of which are respectively on the same straight line, and a plurality of which are adjacently disposed.

5. A head lamp module for a motor vehicle according to claim 1, characterized in that the primary optical element (3) is provided in a unitary structure.

6. A headlight module for a motor vehicle according to claim 1, characterized in that the width of the light projection (5) is arranged in proportion to the number of optical units of the primary optical element, the size of the light projection (5) being arranged differently by the number of optical units of the primary optical element.

7. A head lamp module for a motor vehicle according to claim 6, characterized in that the light projection (5) comprises a plurality of area light patterns, the width of the smallest dimension of a single one of the area light patterns being 15mm and the length of the smallest dimension of a single one of the area light patterns being 30mm.

8. A head lamp module for a motor vehicle according to claim 1, characterized in that the light source (2) is fixedly arranged on a circuit board (1), which circuit board (1) employs a PCB board.

9. A vehicle lamp comprising a head lamp module for a motor vehicle according to any one of claims 1-8.

10. A vehicle characterized by comprising the lamp according to claim 9.