CN112146056A

CN112146056A - Car light lighting device, vehicle headlamp and vehicle

Info

Publication number: CN112146056A
Application number: CN201910578516.7A
Authority: CN
Inventors: 仇智平; 张大攀; 李辉; 祝贺; 桑文慧
Original assignee: HASCO Vision Technology Co Ltd
Current assignee: HASCO Vision Technology Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-12-29
Also published as: WO2020258591A1

Abstract

The invention relates to a vehicle lighting system, and discloses a vehicle lamp lighting device, which comprises a first optical element (3) and a plurality of light source components (4); the first optical element (3) comprises a plurality of optical units (31) connected in sequence, each light source assembly (4) comprises a light source (41); the optical units (31) are respectively in one-to-one correspondence with the light sources (41), so that the angle and/or distance between the light sources (41) relative to the optical axis of the corresponding optical unit (31) can be adjusted individually. The positions of a plurality of light source components of the vehicle lamp illuminating device can be independently adjusted, so that each optical unit can be kept fixed at the position of the model design, and the vehicle lamp illuminating device is compact in structure and small in size. The invention also discloses a vehicle headlamp comprising the vehicle lamp lighting device and a vehicle.

Description

Car light lighting device, vehicle headlamp and vehicle

Technical Field

The invention relates to a vehicle lighting system, in particular to a vehicle lamp lighting device. The invention also relates to a vehicle headlamp and a vehicle.

Background

The models of the lamps are more and more diversified, and in the aspect of vehicle headlamps, a model that a plurality of lamp lighting units which are dispersedly arranged are arranged in a certain form to form an integral headlamp is appeared, namely, the lamp lighting is dispersedly arranged into a plurality of lamp lighting units to generate a plurality of lighting areas, and a plurality of lamp lighting units are combined into a headlamp, and a plurality of lighting areas are combined into a lighting light shape. Such car light molding is more flexible, and design flexibility is higher, can set up light-emitting portion according to certain form of arranging according to different vehicles to the figurative requirement of car light, for example arrange along certain straight line form, perhaps arrange along the line of buckling form, also perhaps arrange along the curve form etc..

However, the above-mentioned head lamp is composed of a plurality of independent lamp lighting units, and since there are tolerances in manufacturing and mounting of parts of each lamp lighting unit, relatively complicated dimming calibration is required between each lighting unit of the lamp, and the position of the light shape between each lamp lighting unit is calibrated to form an accurate complete lamp light shape. Each of the lamp lighting units is generally provided with a dimming mechanism separately for dimming. For example, as shown in fig. 1, according to the design requirement of the vehicle lamp, six vehicle lamp lighting units 1 are arranged regularly in an oblique straight line at equal intervals, a lighting bracket 2 is fixed relative to the lamp body of the vehicle lamp, each vehicle lamp lighting unit 1 is arranged on the lighting bracket 2, and the position shown in fig. 1 is the design state. However, due to the manufacturing and installation deviation of parts, the light shape of each car lamp lighting unit 1 has a certain deviation relative to the designed position, and the position of each car lamp lighting unit 1 on the lighting bracket 2 needs to be adjusted up, down, left and right through the dimming mechanism, so that the lighting areas generated by a plurality of car lamp lighting units 1 are combined into a complete car lamp light shape meeting the requirements. After dimming, the position of each car light illuminating unit 1 deviates from the position of the design state, as shown in fig. 2, the car light illuminating units 1 are no longer regularly arranged along the oblique straight line at equal intervals, and are arranged in disorder and at unequal distances, so that the car light after dimming cannot meet the design requirement of the car light.

In addition, the conventional vehicle lamp lighting unit generally includes an assembly including a heat sink, a circuit board, a light source, a primary optical element, a secondary optical element, and a fixing bracket, and each assembly can move up, down, left, right, or swing under the adjustment of the dimming mechanism. Therefore, a certain distance needs to be left between each car lamp lighting unit to meet the dimming requirement, namely, each car lamp lighting unit needs to be mutually independent and arranged at intervals, so that the whole size of the whole car lamp lighting device is large, and the occupied space is large.

Disclosure of Invention

The invention aims to provide a car lamp lighting device, which can effectively realize the dimming function and does not influence the overall modeling layout of the car lamp.

A further object of the present invention is to provide a vehicle headlamp whose shape is not influenced by the implementation of the dimming function.

In addition, the technical problem to be solved by the invention is to provide a vehicle, wherein the modeling layout of the headlamp of the vehicle is reasonable and is not influenced by the realization of the dimming function.

In order to solve the above technical problems, an aspect of the present invention provides a vehicle lamp lighting device including a first optical element and a plurality of light source assemblies; the first optical element comprises a plurality of optical units which are sequentially connected, and each light source assembly comprises a light source; the optical units are respectively in one-to-one correspondence with the light sources, and are arranged in one-to-one correspondence so that the angle and/or distance between each light source and the optical axis of the corresponding optical unit can be independently adjusted.

Preferably, the vehicular lamp illumination device of the present invention further comprises a second optical element; the second optical elements are respectively in one-to-one correspondence with the light source assemblies and the optical units so as to be capable of projecting the light rays emitted by the light sources onto the corresponding optical units. In this preferred technical scheme, the second optical element can project more light rays emitted by the light source onto the optical unit, so that the utilization rate of the light rays of the light source is improved.

Further preferably, the second optical element is located between the light source assembly and the first optical element, and includes a light inlet and a light outlet; the light inlet is adjacent to the corresponding light source, and the light outlet faces the corresponding optical unit. Through the preferred technical scheme, the light inlet can collect more light rays emitted by the light source, and the light rays are projected onto the optical unit through the light emergent surface.

Further, the vehicle lamp lighting device of the present invention further includes a bracket, the bracket is mounted on the light source assembly, and the second optical element is mounted on the bracket. In this preferred embodiment, the second optical element is mounted by the bracket, and the mounting stability of the second optical element is higher.

Preferably, the second optical element is a condenser. In the preferred technical scheme, the condenser is sold in various forms of commodities and is low in price.

Preferably, the vehicle lamp lighting device of the present invention further includes a heat sink, and each of the light source assemblies is mounted on the heat sink. Through this preferred technical scheme, with each the light source subassembly install on the radiator, increased the radiating effect of each the light source subassembly on the one hand, on the other hand, the relative position between each the light source subassembly is more stable.

Preferably, the first optical element is also mounted on the heat sink. In this preferred embodiment, the first optical element is also mounted on the heat sink, so that the relative position between the first optical element and the light source assembly and the second optical element is more stable and more accurate in adjustment.

Specifically, the support is provided with a threaded connecting piece and a positioning pin, the light source assembly comprises a circuit board, the circuit board is provided with the light source, a second through hole and a positioning hole, the radiator is provided with a first through hole and a positioning groove, the diameter of the first through hole is larger than the diameter of the thread of the threaded connecting piece, and the diameter of the positioning groove is larger than the diameter of the positioning pin; the bracket, the light source assembly and the radiator are connected together by a screw which passes through the first through hole and the second through hole and is in threaded connection with the threaded connecting piece, and the positioning pin passes through the positioning hole and is inserted into the positioning groove; or, the radiator, the light source assembly and the bracket are fixedly connected with each other, a ball nut and a ball screw are respectively arranged on the mounting bracket of the lamp body and the radiator, and the ball screw is connected with the ball nut, so that the angle between the light source assembly and the optical axis of the optical unit corresponding to each light source assembly can be adjusted; or, the car lamp lighting device of the invention further comprises a pressing plate, the radiator is provided with a screw hole, the pressing plate is provided with a round hole, and the pressing plate penetrates through the round hole through a bolt to be connected with the screw hole, so that the light source assembly is fixed between the pressing plate and the radiator. In this preferred embodiment, the relative position and/or angle between the light source module and the heat sink can be adjusted to adjust the illumination area generated by the light emitted from the light source on the light source module projected through the corresponding optical unit.

Preferably, the first optical element is integrally formed by a plurality of the optical units. In this preferred embodiment, the optical unit formed integrally has a more stable structure.

Preferably, the optical unit is a plano-convex lens or a biconvex lens; one surface of each optical unit, which is far away from the light source, is a plane or a convex surface, and the surface of each optical unit, which is far away from the light source, is in smooth transition to form the front surface of the first optical element. Through this preferred technical scheme, the surface molding of first optical element is more graceful, and the running resistance is littleer.

A second aspect of the invention provides a vehicle headlamp including the lamp illumination device provided by the first aspect of the invention.

A third aspect of the invention provides a vehicle comprising a vehicle headlamp as provided in the second aspect of the invention.

Through the technical scheme, the plurality of optical units of the vehicle lamp lighting device are sequentially connected into the first optical element, and the light is adjusted through the plurality of light source assemblies which can be independently adjusted, so that the position of the optical units is not moved in the light adjusting process, and the overall modeling layout of the vehicle lamp is not influenced. The use of the second optical element improves the utilization of the light source. The use of a holder improves the stability of the second optical element. The design that first optical element and a plurality of light source subassembly all install on same radiator has improved the stability of relative position between light source subassembly and the optical unit. The relative position of the light source assembly on the radiator is adjusted through the movement of the relative position between the first through hole and the second through hole, so that the dimming mode is simple in structure and convenient to dim. The smooth structure of the outer surface of the first optical element enables the modeling to be more elegant, and meanwhile, the driving resistance and the noise are reduced.

The vehicle headlamp of the invention has the same advantages because the vehicle lamp lighting device of the invention is adopted.

The vehicle adopting the headlamp has the advantages.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic view of a vehicle lamp layout of the prior art;

FIG. 2 is a schematic diagram of the vehicle lamp of FIG. 1 after dimming;

FIG. 3 is a schematic structural view of an embodiment of the vehicular lamp illumination device of the present invention;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a side view of FIG. 3;

FIG. 6 is a rear view of FIG. 3;

FIG. 7 is a schematic perspective view of an embodiment of the vehicular lamp illumination device of the present invention without the first optical element;

FIG. 8 is an enlarged view of a portion A of FIG. 7;

FIG. 9 is an exploded view of a portion of FIG. 7;

FIG. 10 is a partial enlarged view of portion B of FIG. 9;

FIG. 11 is another perspective view of FIG. 9;

FIG. 12 is an enlarged view of a portion C of FIG. 11;

FIG. 13 is a schematic view of a first optical element of the vehicular lamp lighting device of the present invention;

FIG. 14 is a schematic view of another first optical element in the vehicular lamp illuminating device of the invention;

fig. 15 is a schematic view of a third first optical element in the vehicular lamp illuminating device of the invention.

Description of the reference numerals

1 vehicle lamp lighting unit 2 lighting support

3 first optical element 31 optical unit

4 light source assembly 41 light source

42 second through hole of circuit board 421

422 positioning hole 5 radiator

51 first through hole 52 positioning groove

6 second optical element 61 entrance

62 light-emitting surface 7 support

71 screw thread connecting piece 72 positioning pin

8 screw

Detailed Description

In the present invention, unless otherwise specified, the orientation or positional relationship indicated by the use of the orientation words such as "front and rear" is based on the orientation or positional relationship indicated by the orientation in the normal running state of the vehicle after the lamp illumination device or the vehicle headlamp of the present invention is mounted on the vehicle.

In the present description, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, so that the features defined "first", "second" may explicitly or implicitly include one or more of said features.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," or "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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.

As shown in fig. 3 to 5, one embodiment of the vehicular lamp illumination device of the present invention includes a first optical element 3 and a plurality of light source assemblies 4. The plurality of optical units 31 are connected in sequence to form the first optical element 3 according to the design and modeling requirements. Each light source assembly 4 is provided with a light source 41, the light source 41 may be composed of single or multiple LED particles, the multiple light source assemblies 4 are disposed behind the multiple optical units 31 in a one-to-one correspondence manner, and the light sources 41 are kept within a range right behind the corresponding optical units 31. The light emitted from each light source 41 is directed to the corresponding optical unit 31 and projected through the optical unit 31 to form an illumination area. The multiple illumination zones are combined together to form a complete vehicle light shape. The position of each light source assembly 4 can be independently adjusted, so that the angle and/or distance between each light source 41 and the optical axis of the corresponding optical unit 31 can be correspondingly changed, so as to independently adjust the illumination area generated after the light emitted by each light source 41 is projected through the corresponding optical unit 31. The adjustment of the position of the light source assembly 4 can be achieved by adjusting the installation position of the light source assembly 4, or by adjusting the installation angle of the light source assembly 4, and the specific implementation manner is further described later. By adjusting each light source assembly 4, the position of each illumination area can be adjusted to form an accurate and complete vehicle light shape, i.e. dimming of the vehicle light. Since the adjustment of the first optical element 3 is not involved in the dimming process, the appearance of the vehicle lamp lighting device of the present invention is not affected, so that the vehicle lamp lighting device of the present invention can keep the design shape unchanged. Meanwhile, since the positions between the optical units 31 do not need to be adjusted, the optical units 31 can be designed to be compact, so as to reduce the space occupation of the vehicle lamp lighting device of the present invention.

As an embodiment of the present invention, as shown in fig. 7 to 12, the vehicle lamp lighting device of the present invention is further provided with a second optical element 6. The second optical element 6 may use various light guides made of a transparent material, such as an optical fiber, an organic polymer transparent material, or a columnar or strand-shaped light guide made of glass. The second optical elements 6 are respectively disposed in one-to-one correspondence with the light source modules 4 and the optical units 31, and the light emitted from each light source 41 is projected onto the corresponding optical unit 31 through the second optical element 6. The second optical element 6 can project the incident light within its own range, and can project more light emitted from the light source 41 onto the corresponding optical unit 31.

In some embodiments of the present invention, as shown in fig. 8, 10 and 12, the second optical element 6 includes a light inlet 61 and a light outlet 62. The second optical element 6 is disposed between the light source assembly 4 and the first optical element 3. The light inlets 61 are adjacent to the corresponding light sources 41 to collect more light emitted from the light sources 41; the light exit surface 62 faces the corresponding optical unit 31 to better project the light toward the optical unit 31.

In some embodiments of the present invention, as shown in fig. 8 to 12, the lighting device for a vehicle lamp of the present invention is further provided with a bracket 7, the bracket 7 is mounted on the light source assembly 4, the second optical element 6 is mounted on the bracket 7, and the second optical element 6 is held stably between the light source assembly 4 and the first optical element 3.

In some embodiments of the present invention, the second optical element 6 employs a condenser. The condenser is made of transparent high polymer materials through injection molding, finished products with various structural forms are sold in the market, the condenser can be customized according to the required shape, the price is low, and the condenser is convenient to obtain.

In some embodiments of the present invention, as shown in fig. 5 to 12, the vehicle lamp lighting device of the present invention further includes a heat sink 5, and unlike the prior art in which a plurality of heat dissipation devices are separately and intermittently provided for each vehicle lamp lighting unit, the vehicle lamp lighting device of the present invention provides only one integrated heat sink 5, a plurality of light source assemblies 4 are each independently mounted on the heat sink 5, and the mounting positions of the light source assemblies 4 on the heat sink 5 can be independently adjusted. In this embodiment, only the light source module 4, the second optical element 6 and the bracket 7 mounted on the light source module 4 need to be adjusted in position, and the radiator does not need to be adjusted in position, so that the radiator adopts an integral structure, thereby increasing the material volume of the radiator on the basis of reducing the occupied space of the radiator and improving the radiating effect of the radiator.

In some embodiments of the invention, the first optical element 3 is also mounted on a heat sink 5, as shown in fig. 3, 5. The integral first optical element 3 is directly mounted on the integral heat sink, and compared with the prior art in which a plurality of first optical elements are respectively mounted on the respective heat sinks, the integral first optical element 3 in the present embodiment is mounted on the heat sink 5 by only one-time mounting, so that the mounting error is reduced.

In some embodiments of the present invention, as one of the embodiments, as shown in fig. 9 to 12, a screw connector 71 and a positioning pin 72 are provided on the bracket 7; the light source assembly 4 comprises a circuit board 42, the light source 41 is arranged on the circuit board 42, and a second through hole 421 and a positioning hole 422 are arranged on the circuit board 42; the heat sink 5 is provided with a first through hole 51 and a positioning groove 52, the diameter of the first through hole 51 is larger than the thread diameter of the thread connecting piece 71, and the diameter of the positioning groove 52 is larger than the diameter of the positioning pin 72. The screw 8 is screwed with the screw connector 71 through the first through hole 51 and the second through hole 421 in sequence, so as to connect the bracket 7, the light source assembly 4 and the heat sink 5 together. Since the diameter of the first through hole 51 is larger than the thread diameter of the threaded connection member 71, that is, larger than the thread diameter of the screw 8, the circuit board 42 can move relatively on the heat sink 5 before the screw 8 is tightened, so as to realize the dimming of the present embodiment, and after the screw 8 is tightened, the position between the two is fixed, so as to keep the light shape stable after the dimming. The positioning pin 72 passes through the positioning hole 422 and is inserted into the positioning groove 52, and the positioning pin 72 is matched with the positioning hole 422, so that the position of the bracket 7 mounted on the circuit board 42 is accurately positioned, and the stability is high. Due to the larger diameter of the positioning groove 52, the positioning pin 72 can move in the positioning groove 52, so that the relative position between the bracket 7 and the heat sink 5 can be adjusted. The head of the screw 8 covers the entire first penetration hole 51 so that the screw 8 can stably fix the heat sink 5. The screws 8 can be flange face screws or can be used by using common screws and a gasket.

As another embodiment, the heat sink 5, the light source assembly 4 and the bracket 7 are fixedly connected to form a whole, and a ball nut and a ball screw are respectively arranged on the mounting bracket for mounting the vehicle lamp lighting device of the invention in the lamp body and the heat sink 5, and the ball screw is connected with the ball nut. The first optical elements 3 are also fixed to the mounting bracket so that the angle between the light source assembly 4 and the optical axis of each corresponding optical unit 31 can be adjusted.

In another embodiment of the invention, the vehicle lamp lighting device further comprises a pressing plate, a screw hole is formed in the radiator, a round hole is formed in the pressing plate, the pressing plate penetrates through the round hole through a bolt to be connected with the screw hole, and the light source assembly 4 is fixed between the pressing plate and the radiator 5 through the pressing plate. The bolt is loosened, the position of the light source assembly 4 relative to the radiator 5 can be adjusted, and the bolt is tightened, so that the relative position of the light source assembly and the radiator can be fixed.

In some embodiments of the present invention, as shown in fig. 3 to 5 and 13 to 15, the first optical element 3 is integrally formed by a plurality of optical units 31, the structural strength of the first optical element 3 is higher, and the positional stability between the optical units 31 is better.

In some embodiments of the present invention, as shown in fig. 13 to 15, the optical unit 31 may employ a plano-convex lens or a biconvex lens; when a plano-convex lens is used, the surface of the optical unit 31 away from the light source 41 may be a flat surface or a convex surface. The side of each optical unit 31 remote from the light source 41 is smoothly transitioned to form the front surface of the first optical element 3. Of course, the surface of each optical unit 31 near the light source 41 may be smoothly transited to form the rear surface of the first optical element 3. This makes the modeling of the vehicular lamp illumination device of the invention smoother.

The vehicle headlamp and the vehicle of the present invention have the beneficial effects of the lamp lighting device of the above embodiment because the lamp lighting device and the vehicle headlamp of the present invention are adopted.

In the description of the present invention, reference to the description of the terms "one 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 invention. In the present disclosure, the schematic representations of the terms used above 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 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 lighting device characterized by comprising a first optical element (3) and a plurality of light source assemblies (4); the first optical element (3) comprises a plurality of optical units (31) connected in sequence, each light source assembly (4) comprises a light source (41); the optical units (31) are respectively in one-to-one correspondence with the light sources (41), and are arranged in one-to-one correspondence such that the angle and/or distance between each light source (41) relative to the optical axis of the respectively corresponding optical unit (31) can be independently adjusted.

2. The vehicular lamp illumination device according to claim 1, further comprising a second optical element (6); the second optical elements (6) are respectively in one-to-one correspondence with the light source assemblies (4) and the optical units (31) so as to be capable of projecting the light rays emitted by each light source (41) onto the corresponding optical unit (31).

3. The automotive light illumination device according to claim 2, characterized in that the second optical element (6) is located between the light source assembly (4) and the first optical element (3) and comprises a light inlet (61) and a light outlet (62); the light inlets (61) are adjacent to the corresponding light sources (41), and the light outlets (62) face the corresponding optical units (31).

4. A vehicular lamp lighting device according to claim 3, further comprising a bracket (7), wherein the bracket (7) is mounted on the light source assembly (4), and the second optical element (6) is mounted on the bracket (7).

5. The vehicular lamp illumination device according to any one of claims 2 to 4, characterized in that the second optical element (6) is a condenser.

6. The vehicular lamp illumination device according to any one of claims 1 to 4, further comprising a heat sink (5), wherein each of the light source assemblies (4) is mounted on the heat sink (5).

7. A vehicle lamp lighting device according to claim 6, characterized in that the first optical element (3) is also mounted on the heat sink (5).

8. The car light illumination device according to claim 6, characterized in that a threaded connector (71) and a positioning pin (72) are arranged on the bracket (7), the light source assembly (4) comprises a circuit board (42), the light source (41), a second through hole (421) and a positioning hole (422) are arranged on the circuit board (42), a first through hole (51) and a positioning groove (52) are arranged on the heat sink (5), the diameter of the first through hole (51) is larger than the threaded diameter of the threaded connector (71), and the diameter of the positioning groove (52) is larger than the diameter of the positioning pin (72); the bracket (7), the light source assembly (4) and the heat sink (5) are connected together by a screw (8) passing through the first through hole (51), the second through hole (421) and the threaded connecting piece (71) in a threaded connection manner, and the positioning pin (72) passes through the positioning hole (422) and is inserted into the positioning groove (52); or,

the radiator (5), the light source assembly (4) and the support (7) are fixedly connected with each other, a ball nut and a ball screw are respectively arranged on the mounting support of the lamp body and the radiator (5), and the ball screw is connected with the ball nut, so that the angle between the light source assembly (4) and the optical axis of each corresponding optical unit (31) can be adjusted; or,

the LED lamp is characterized by further comprising a pressing plate, wherein a screw hole is formed in the radiator (5), a round hole is formed in the pressing plate, and a bolt penetrates through the round hole to be connected with the screw hole, so that the light source assembly (4) is fixed between the pressing plate and the radiator (5).

9. The vehicular lamp illumination device according to any one of claims 1 to 4, characterized in that the first optical element (3) is integrally formed by a plurality of the optical units (31).

10. The vehicular lamp illumination device according to claim 9, wherein the optical unit (31) is a plano-convex lens or a biconvex lens; the surface of the optical unit (31) far away from the light source (41) is a plane or a convex surface, and the surface of each optical unit (31) far away from the light source (41) is smoothly transited to form the front surface of the first optical element (3).

11. A vehicle headlamp characterized by comprising the vehicular lamp illumination device according to any one of claims 1 to 10.

12. A vehicle characterized by comprising the vehicle headlamp of claim 11.