CN115013779A - Ellipsoidal light module with softened double light gradients - Google Patents

Abstract

The invention discloses an ellipsoid lighting module for softening double light gradients, comprising a lens support, a convex lens installed at the front end of the lens support, and a radiator installed at the rear end of the lens support. The space formed by the combination of the radiator is provided with a first inner lampshade, a second inner lampshade, a fixing plate, a low beam baffle, a first PCBA and a second PCBA, the convex lens, the first inner lampshade, the second The inner lampshade, the fixing piece, the low beam baffle, the first PCBA and the second PCBA form a dual-light optical system, and the second inner lampshade consists of a single row of multiple irregular needle-shaped light incident surfaces. The second inner lampshade cooperates with the low-beam baffle to form a low-beam cut-off line and a high-beam type. The ellipsoid light module for softening the double light gradient softens the gradient difference between the far and near light at the splicing point.

Description

An ellipsoid light module that softens the bi-light gradient

technical field

The invention relates to the technical field of self-adaptive lighting automotive lamps, in particular to an ellipsoid lighting module for softening double light gradients.

Background technique

With the rapid development of automotive lighting technology, the application of dual-light adaptive headlights is more extensive. The area behind the light-dark cut-off line to 30-40 meters mainly relies on the light source reflected on the ground. This area can distinguish bright colors. Objects, but objects that are stationary and dark on the road are less noticeable. At this time, if the light and dark cut-off lines of the far and near beams are layered, it will give the driver the illusion that there are pits on the road, which will bring a bad night driving experience to the driver and increase the danger of night driving.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art.

To this end, the present invention proposes an ellipsoid light module for softening the double light gradient, which softens the gradient difference between the far and near lights at the splicing point.

The ellipsoid light module for softening dual light gradients according to an embodiment of the present invention includes a lens support, a convex lens installed at the front end of the lens support, and a heat sink installed at the rear end of the lens support. The lens support is connected to the lens support. The space formed by the combination of the radiator is provided with a first inner lampshade, a second inner lampshade, a fixed piece, a low beam baffle, a first PCBA and a second PCBA, the convex lens, the first inner lampshade, the second The inner lampshade, the fixing piece, the low beam baffle, the first PCBA and the second PCBA form a dual-light optical system, and the second inner lampshade is composed of a single row of a plurality of irregular needle-shaped light incident surfaces. The second inner lampshade cooperates with the low-beam baffle to form a low-beam cut-off line and a high-beam type.

The beneficial effect of the invention is that the layering phenomenon of the far and near beams in the traditional dual-light module mechanism is eliminated, the gradient difference between the far and near beams at the splicing part is softened, and the driver has a better driving lighting experience when driving at night. Improves the driver's safety in night driving.

According to an embodiment of the present invention, the first PCBA is provided with a low beam LED light source, and the second PCBA is provided with a high beam LED light source.

According to an embodiment of the present invention, the first PCBA is provided with a low beam connector for powering on, and the second PCBA is provided with a high beam connector for powering on.

According to an embodiment of the present invention, a thermally conductive grease layer is provided between the heat sink and the first PCBA, and a thermally conductive grease layer is provided between the heat sink and the second PCBA.

According to an embodiment of the present invention, a plurality of sheet-shaped heat dissipation columns are arranged at the rear end of the heat sink, and a gap is provided between two adjacent sheet-shaped heat dissipation columns.

According to an embodiment of the present invention, the rear end of the heat sink is fixed with a fan by means of screws.

According to an embodiment of the present invention, the second inner lamp cover, the fixing sheet and the second PCBA are fixed to the front end of the heat sink by screws.

According to an embodiment of the present invention, the rear end of the convex lens is provided with an inner clamping leg, and the convex lens is clamped and fixed to the front end of the lens holder through the inner clamping leg.

According to an embodiment of the present invention, a light shield is further provided in the space formed by the combination of the lens holder and the heat sink, a positioning column is provided at the front end of the light shield, and the light shield is pre-installed on the positioning column through the positioning column. the rear end of the lens holder.

According to an embodiment of the present invention, the lens holder is fixed on the heat sink by screws.

Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the description, claims and drawings.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in this application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the assembly structure schematic diagram of the present invention;

Fig. 2 is the exploded structure schematic diagram of the present invention;

Fig. 3 is the sectional structure schematic diagram of the present invention;

Fig. 4 is the structural representation of convex lens;

Fig. 5 is the structural representation of the second inner lampshade;

Fig. 6 is a light pattern simulation diagram of the present invention.

Numerals in the drawings: 1, convex lens; 101, microstructure; 2, lens holder; 3, shading cover; 4, first inner lampshade; 5, second inner lampshade; 501, light incident surface; 502, light exit surface; 6. Fixed plate; 7. Low beam baffle; 8. First PCBA; 9. Second PCBA; 10, Heat sink; 11, Fan; 12, Low beam connector; 13, High beam connector; Light LED light source; 15. High beam LED light source.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device or Elements must have a particular orientation, be constructed and operate in a particular orientation and are therefore not to be construed as limitations of the invention. Furthermore, features delimited with "first", "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The following is a detailed description of the ellipsoid light module for softening dual light gradients according to the embodiments of the present invention with reference to the accompanying drawings.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the ellipsoid light module for softening the double light gradient of the present invention comprises a lens support 2, a convex lens 1 installed at the front end of the lens support 2 and a convex lens 1 installed at the rear end of the lens support 2 The radiator 10, the space formed by the combination of the lens holder 2 and the radiator 10 is provided with a first inner lampshade 4, a second inner lampshade 5, a fixing piece 6, a low beam baffle 7, a first PCBA8 and a second PCBA9, a convex lens 1 , The first inner lampshade 4, the second inner lampshade 5, the fixed piece 6, the low beam baffle 7, the first PCBA8 and the second PCBA9 form a dual-beam optical system, which can realize the ideal ADB high beam and low beam type.

Among them, the convex lens 1 , the second inner lampshade 5 , the fixing plate 6 , the low beam baffle 7 and the second PCBA 9 form a high beam optical system. The convex lens 1, the first inner lampshade 4, the low beam baffle 7 and the first PCBA 8 form a low beam optical system.

The fixing piece 6 is used to stabilize the light incident surface 501 of the second inner lampshade 5 .

The second inner lampshade 5 is an injection molding structure of a silicone insert and a two-color iron insert. Specifically, the second inner lampshade 5 is injection molded from a silicone insert and a PBT mixed iron insert.

The second inner lampshade 5 is composed of a single row of a plurality of irregular needle-shaped light incident surfaces 501 and a light exit surface 502 forming a cutoff line. The second inner lampshade 5 cooperates with the low beam baffle 7 to form a low beam cutoff line and a high beam type .

In the ellipsoid light module for softening the double light gradient of the present invention, the cut-off line of the near light is designed on the second inner lampshade 5, which eliminates the layering phenomenon of the far and near light in the traditional double light module mechanism, and softens the far and near light. The gradient difference at the splicing point greatly weakens the gradient of the double light of the entire ellipsoid mechanism, which ensures that the driver has a better driving lighting experience when driving at night, and improves the safety of the driver when driving at night.

The adaptive lighting device using the ellipsoid light module with the softened double light gradient realizes multiple stable light source display sub-sections, and the number of light source display sub-sections is less than or equal to 17, which avoids dazzling pedestrians or opposing drivers. Effectively reduce traffic accidents at night.

According to an embodiment of the present invention, the second inner lamp cover 5 , the fixing piece 6 and the second PCBA 9 are fixed to the front end of the heat sink 10 by screws. The low beam baffle 7 is heat riveted on the second inner lampshade 5 . The first inner lamp cover 4 and the first PCBA 8 are also fixed to the front end of the heat sink 10 by screws. The lens holder 2 is fixed on the heat sink 10 by screws.

According to an embodiment of the present invention, the lens holder 2 is a PC lens holder, the front end of the lens holder 2 is provided with inner clips for easy installation of the convex lens 1, and the rear flange of the lens holder 2 is provided with a light hood 3 and a heat sink for easy installation 10 dowel pins.

According to an embodiment of the present invention, the space formed by the combination of the lens holder 2 and the radiator 10 is further provided with a shading cover 3 , the front end of the shading cover 3 is provided with a positioning column, and the shading cover 3 is positioned by the rear flange of the lens holder 2 . The pin is pre-riveted to the rear end of the lens holder 2. The hood 3 is made of metal material, which effectively avoids the phenomenon that the convex lens 1 is focused and ablated by the lens holder 2. The surface of the hood 3 is sprayed black to avoid stray light caused by reflection of the hood 3 when the adaptive lighting device is turned on. . Holes are provided on the hood 3 to facilitate the positioning of the hood 3 and the lens holder 2 .

According to an embodiment of the present invention, the front end of the light shield 3 is provided with a positioning column, and the light shield 3 is pre-assembled and riveted to the rear end of the lens holder 2 through the positioning column.

According to an embodiment of the present invention, the rear end of the convex lens 1 is provided with an inner clamp, and the convex lens 1 is clamped and fixed to the front end of the lens holder 2 through the inner clamp.

According to an embodiment of the present invention, the convex lens 1 is a glass lens or a plastic lens, and a microstructure 101 with non-uniform shape and height is added to the front curved surface of the convex lens 1. The function of the microstructure 101 is to generate three light source display segments. Alternatively, microstructures 101 with inconsistent structure depths are added to the front curved surface of the convex lens 1 .

According to an embodiment of the present invention, the first PCBA 8 is an aluminum substrate, the first PCBA 8 has positioning holes, and the first PCBA 8 is provided with positioning pins, through which the positioning holes on the first PCBA 8 are respectively connected to the heat sink 10 and the first The inner lampshade 4 is positioned; the first PCBA8 is provided with a low-beam LED light source 14, and the first PCBA8 is provided with a low-beam connector 12 for connecting power.

The second PCBA9 is an aluminum substrate, the second PCBA9 has positioning holes, and the second PCBA9 is provided with positioning pins, and the positioning holes on the second PCBA9 are respectively positioned with the radiator 10 and the second inner lampshade 5 through the positioning pins; A high-beam LED light source 15 is provided on the PCBA9, and a high-beam connector 13 for connecting power is provided on the second PCBA9.

According to an embodiment of the present invention, a thermally conductive grease layer is disposed between the heat sink 10 and the first PCBA 8 to facilitate heat dissipation between the heat sink 10 and the first PCBA 8 . A thermal grease layer is disposed between the heat sink 10 and the second PCBA 9 to facilitate heat dissipation between the heat sink 10 and the second PCBA 9 .

According to an embodiment of the present invention, the radiator 10 is a die-casting part, the material of the radiator 10 is ADC12, a number of sheet-shaped heat-dissipating columns are arranged at the rear end of the heat-sink 10, and a specific gap is set between two adjacent sheet-shaped heat-dissipating columns. . The front of the radiator 10 is a PCB board mounting plane, the PCB board mounting plane is provided with positioning posts for mounting the first PCBA 8 and the second PCBA 9 , and the rear of the radiator 10 is provided with a fixing point for mounting the fan 11 .

According to an embodiment of the present invention, the rear end of the heat sink 10 is fixed with a fan 11 for heat dissipation by screws, that is, the fan 11 is fixed at the rear end of the heat sink 10 by screws, so as to soften the ellipsoid light module of the double light gradient of heat dissipation.

The radiator 10 is arranged behind the LED light source, and adopts a fan 11, which can ensure that the heat is discharged smoothly, has a good heat dissipation effect, does not accumulate heat, and ensures that the headlight is in a safe and stable working environment, thereby improving the use of the headlight. life and driving safety.

The specific installation process of the ellipsoid light module for softening the double light gradient of the present invention is as follows: first, after coating the thermal grease on the installation plane of the radiator 10 , then the first PCBA 8 and the second PCBA 9 are installed through the positioning pins of the radiator 10 . Pre-assembled and fixed by screws, then the low beam baffle 7 is heat riveted on the second inner lampshade 5, the fixing plate 6 and the second PCBA 9 are preassembled through the positioning pins on the second inner lampshade 5, and then the low beam The baffle 7, the fixing sheet 6 and the second PCBA9 are fixed by riveting and screws, and then the fan 10 is fixed to the rear end of the radiator 10 by four screws, and then the convex lens 1 and the lens holder 2 are fixed by the inner clips After assembly, the convex lens 1 is fixed on the front end of the lens holder 2 , and then the hood 3 is pre-positioned by the positioning pins at the rear of the lens holder 2 , and finally fixed by riveting through the positioning pins at the rear of the lens holder 2 .

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, 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.

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a two optical gradient's of gentle ization ellipsoid light module which characterized in that: comprises a lens bracket (2), a convex lens (1) arranged at the front end of the lens bracket (2) and a radiator (10) arranged at the rear end of the lens bracket (2), a first inner lampshade (4), a second inner lampshade (5), a fixing sheet (6), a dipped beam baffle (7), a first PCBA (8) and a second PCBA (9) are arranged in a space formed by combining the lens support (2) and the radiator (10), the convex lens (1), the first inner lampshade (4), the second inner lampshade (5), the fixing sheet (6), the dipped beam baffle (7), the first PCBA (8) and the second PCBA (9) form a double-light optical system, the second inner lampshade (5) is composed of a plurality of irregular needle-shaped light-in surfaces (501) in a single row and a light-out surface (502) forming a cut-off line, lampshade (5) and passing light baffle (7) cooperation form passing light cut-off line and high beam light type in the second.

2. The softened dual optical gradient ellipsoidal light module of claim 1, wherein: be provided with short-distance beam LED light source (14) on first PCBA (8), be provided with distance beam LED light source (15) on second PCBA (9).

3. The softened dual optical gradient ellipsoidal light module of claim 1, wherein: be provided with on first PCBA (8) and be used for switching on the passing beam connector (12) of power, be provided with on second PCBA (9) and be used for switching on the distance light connector (13) of power.

4. The softened dual optical gradient ellipsoidal light module of claim 1, wherein: a heat conducting grease layer is arranged between the radiator (10) and the first PCBA (8), and a heat conducting grease layer is arranged between the radiator (10) and the second PCBA (9).

5. The softened dual optical gradient ellipsoidal light module of claim 1, wherein: a plurality of flaky radiating columns are arranged at the rear end of the radiator (10), and a gap is formed between every two adjacent flaky radiating columns.

6. The softened dual optical gradient ellipsoidal light module of claim 1, wherein: the rear end of the radiator (10) is fixed with a fan (11) through screws.

7. The softened dual optical gradient ellipsoidal light module of claim 1, wherein: the second inner lampshade (5), the fixing sheet (6) and the second PCBA (9) are fixed at the front end of the radiator (10) through screws.

8. The softened dual optical gradient ellipsoidal light module of claim 1, wherein: the rear end of convex lens (1) is provided with interior card foot, convex lens (1) pass through interior card foot card is established fixedly the front end of lens support (2).

9. The softened dual optical gradient ellipsoidal light module of claim 1, wherein: a light shield (3) is further arranged in a space formed by combining the lens support (2) and the radiator (10), a positioning column is arranged at the front end of the light shield (3), and the light shield (3) is pre-installed at the rear end of the lens support (2) through the positioning column.

10. The softened dual optical gradient ellipsoidal light module of claim 1, wherein: the lens support (2) is fixed on the radiator (10) through screws.

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