Novel high-integration high-beam and low-beam lens module and vehicle lamp

Abstract

The novel high-integration high-beam and low-beam lens module comprises an outer lens, a lens support and a double-beam inner lens, the outer lens is installed at the front end of the lens support, the double-beam inner lens comprises an isolation piece used for isolating high-beam and low-beam and a lamp bead containing part used for installing a light source, and the lamp bead containing part is connected to the rear end of the isolation piece; a circuit board for mounting lamp beads and a radiator for radiating the circuit board are sequentially arranged at the rear end of the lamp bead placing part; the front side of the lamp bead placing part is provided with light-emitting faces which are located on the two sides of the isolation piece respectively and face forwards. The isolation piece comprises a transparent thin piece and an aluminum plating layer coated on the surface of the transparent thin piece, and the transparent thin piece is connected to the lamp bead placing part. The high-beam light source and the low-beam light source can be separated through the nano-scale aluminum plating layer, on the premise that the isolation light source is not reduced, due to the adoption of the aluminum plating layer, the shading effect caused by the isolation piece can be greatly relieved, and the phenomenon of a black area at the boundary of the high-beam light and the low-beam light is greatly relieved.

Description

Technical Field

[0001] The invention relates to a novel highly integrated high and low beam lens module and a vehicle lamp, belonging to the technical field of vehicle lamps. Background Art

[0002] For all types of vehicle lighting systems currently on the market, in the process of high and low beam design, the main components include: outer lens, lens bracket, low beam inner lens, high beam inner lens, fixed baffle, PCBA assembly, radiator. The cutoff line of the low beam is mainly presented by the fixed baffle, and the high beam is achieved by direct illumination from the high beam inner lens.

[0003] In the prior art dual beam function, the cut-off line of the low beam must be realized by a fixed baffle. Due to the existence of the fixed baffle, there will be an obvious black area at the boundary between the high beam and the low beam when the high beam is turned on. The key factor affecting the size of the black area is the thickness of the fixed baffle. Affected by the material, it is impossible to make the thickness of the fixed baffle too small in the prior art. For example, CN 118482352A, which was published later, records that "the thickness of the light-type baffle is one of 0.1mm, 0.15mm or 0.2mm".

[0004] On the other hand, the overall solution has many parts, the assembly solution is complex and redundant, the cost is high, and it does not have platform attributes, so the cost of repeated development is high. Summary of the invention

[0005] In order to solve the deficiencies of the prior art, the object of the present invention is to provide a novel highly integrated high and low beam lens module and a vehicle lamp.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: A novel high-integrated high and low beam lens module comprises an outer lens, a lens bracket and a dual-beam inner lens, wherein the outer lens is mounted on the front end of the lens bracket, and the dual-beam inner lens comprises an isolating sheet for isolating high and low beams, and a lamp bead placement portion for mounting a light source, wherein the lamp bead placement portion is connected to the rear end of the isolating sheet, and a circuit board for mounting lamp beads and a radiator for dissipating heat from the circuit board are sequentially arranged at the rear end of the lamp bead placement portion; The front side of the lamp bead placement portion is provided with light emitting surfaces which are respectively located on both sides of the isolation plate and face forward.

[0007] Preferably, in the aforementioned novel highly integrated high and low beam lens module, the inner wall of the lens holder is also provided with a heat insulating sheet.

[0008] Preferably, in the aforementioned novel highly integrated high and low beam lens module, the isolation sheet comprises a transparent sheet and an aluminum-plated layer coated on the surface of the transparent sheet, and the transparent sheet is connected to the lamp bead placement portion.

[0009] Preferably, in the aforementioned novel highly integrated high and low beam lens module, the aluminum plating layer is located on the side close to the low beam relative to the transparent sheet.

[0010] Preferably, in the aforementioned novel highly integrated high and low beam lens module, the lamp bead placement portion is provided with at least two claws, and the heat sink cooperates with the claws through a clamping hole.

[0011] Preferably, in the aforementioned novel highly integrated high and low beam lens module, the lamp bead placement portion is provided with at least two laterally distributed positioning columns, and the heat sink cooperates with the positioning columns through positioning holes.

[0012] Preferably, in the aforementioned novel highly integrated high and low beam lens module, the lens bracket is provided with a connecting flange, and the connecting flange is provided with a mounting hole.

[0013] Preferably, the aforementioned new type of highly integrated high and low beam lens module is also provided with positioning mounting holes at both ends of the lamp bead placement portion, and the lens bracket is connected to the positioning mounting holes by a screw column, and there are two positioning mounting holes at each end, and at least one of the two positioning mounting holes has a positioning ring groove.

[0014] Preferably, in the aforementioned novel highly integrated high and low beam lens module, the connecting flange is provided with screw columns, and the screw columns are connected to the lamp bead placement part and the heat sink through screws.

[0015] A vehicle lamp comprises a novel highly integrated high and low beam lens module as described above.

[0016] The beneficial effects achieved by the present invention are: Compared with the prior art, the present invention can separate the high beam light source and the low beam light source through a nano-level aluminum plating layer. Compared with the isolation plate with millimeter-level thickness in the prior art, the present invention can greatly alleviate the shading effect caused by the isolation plate because it uses an aluminum plating layer without reducing the isolation light source, and significantly alleviate the phenomenon of black area at the boundary between high and low beams, thereby improving driving safety during vehicle use.

[0017] In terms of assembly process, both sub-assembly one and sub-assembly two of the present invention have the characteristics of simple installation. The installation method of the two sub-assemblies greatly reduces the assembly process, greatly improves production efficiency, and makes process control simpler; it reduces the number of parts, effectively realizes performance and assembly efficiency, and reduces the cost of the entire lens module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall structure diagram of the present invention; Figure 2 It is an exploded view of the present invention; Figure 3 It is a structural diagram of the heat sink and circuit board of the present invention; Figure 4 It is a structural diagram of the bifocal inner lens of the present invention; Figure 5 is a cross-sectional structural diagram of the isolation sheet of the present invention; Figure 6 It is a cross-sectional structural diagram of a spacer in the prior art; The meanings of the reference numerals in the figure are as follows: 1-external lens; 2-lens bracket; 3-dual-light inner lens; 4-circuit board; 5-heat sink; 21-heat insulation sheet; 22-connecting flange; 221-mounting hole; 23-screw column; 31-isolating sheet; 311-aluminum-plated layer; 312-transparent sheet; 32-lamp bead placement part; 321-light emitting surface; 322-lamp bead placement cavity; 323-positioning mounting hole; 33-claw; 34-connecting plate; 35-positioning column; 51-clamping hole; 52-positioning hole; 53-heat sink fin. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0020] like Figures 1 to 4 As shown: This embodiment discloses a novel highly integrated high and low beam lens module, including an outer lens 1, a lens bracket 2 and a dual beam inner lens 3. For the convenience of description, the front end in this application indicates the direction of light emission of the lighting device, and the rear end indicates the direction opposite to the front end. The front end and the rear end can be Figure 1 The X direction is represented by Figure 1 The X-axis is in the direction of the arrow.

[0021] The outer lens 1 is mounted on the front end of the lens bracket 2, and the connection relationship between the two is not limited in this embodiment. The dual-light inner lens 3 includes an isolation plate 31 for isolating high and low beams, and a lamp bead placement portion 32 for installing a light source. The lamp bead placement portion 32 is connected to the rear end of the isolation plate 31. The rear end of the lamp bead placement portion 32 is provided with a circuit board 4 for installing lamp beads and a radiator 5 for dissipating heat from the circuit board 4 in sequence. The circuit board 4 fits tightly against the surface of the radiator 5, and the lamp beads are directly soldered to the circuit board 4 and are located on the other side of the circuit board 4 (the opposite side of the radiator 5). The mounting surface of the circuit board 4 of the lamp bead placement portion 32 has a plurality of lamp bead placement cavities 322. The lamp bead placement cavities 322 are used to place lamp beads on the circuit board 4. The interior of the lamp bead placement cavity 322 can be designed with a reflective structure, such as a reflective bowl.

[0022] The front side of the lamp bead placement portion 32 is provided with light emitting surfaces 321 located on both sides of the isolation plate 31 and facing forward. The light emitting surfaces 321 are vertical strip patterns, which can disperse the light emitted by the lamp beads inside the lamp bead placement cavity 322.

[0023] The isolation sheet 31 includes a transparent sheet 312 and an aluminum layer 311 coated on the surface of the transparent sheet 312. The thickness of the aluminum layer 311 reaches the nanometer level. The aluminum layer 311 is coated on the side of the transparent sheet 312 close to the low beam, so that the light emitted by the high beam can propagate inside the transparent sheet 312. Figure 5 and Figure 6 Line A in the figure represents the light path at the boundary in the near light beam, and line B represents the light path at the boundary in the far light beam. By comparison, it can be seen that the aluminum-plated layer 311 provided on the surface of the transparent sheet 312 in this embodiment can greatly reduce the shading effect caused by the original isolation sheet 31, and greatly alleviate the black area in the prior art.

[0024] The transparent sheet 312 and the lamp bead placement portion 32 may be an integrated structure. The so-called integrated structure means that they are formed in an integrated manner during manufacturing, such as an injection molding process, rather than being assembled later.

[0025] In order to protect the lens holder 2 and prevent the heat generated by the light source from damaging the lens holder 2 , a heat insulating sheet 21 is provided on the inner wall. The heat insulating sheet 21 is made of an annular metal material and is embedded in the interior of the lens holder 2 .

[0026] This embodiment also has the advantage of simple assembly, as follows: the lamp bead placement portion 32 is provided with at least two claws 33, and the heat sink 5 cooperates with the claws 33 through the clamping hole 51. The two claws 33 are respectively located at the two ends of the lamp bead placement portion 32, that is, distributed in the Z direction. In order to better fix the lens bracket 2 and the heat sink 5, at least two locating columns 35 distributed in the transverse direction (Z direction) are provided on the lamp bead placement portion 32, and the heat sink 5 cooperates with the locating columns 35 through the locating holes 52. The heat sink 5 is also provided with a plurality of heat dissipation fins 53.

[0027] The number of the positioning posts 35 is the same as the number of the claws 33, and the two are also matched in position. It can be seen from the above description that the lens bracket 2, the circuit board 4 and the heat sink 5 can be directly assembled by buckling.

[0028] For the sake of convenience, we refer to the combination of the outer lens 1 and the lens holder 2 as sub-assembly 1, and the combination of the lens holder 2, the circuit board 4 and the heat sink 5 as sub-assembly 2. In order to assemble the two sub-assemblies together, the present embodiment also includes the following features: positioning holes 323 are provided at both ends of the lamp bead placement portion 32. The lens holder 2 is connected to the positioning holes 323 through the screw column 23. There are two positioning holes 323 at each end, which are respectively located on both sides of the isolation plate 31 in the Y direction. At least one of the two positioning holes 323 on the same side has a positioning ring groove for positioning the screw column 23.

[0029] The screw column 23 is connected to the lamp bead placement portion 32 and the heat sink 5 by means of screws. The screws pass through the heat sink 5 and the positioning and mounting holes 323 in sequence, and are then connected to the screw column 23 by means of threads.

[0030] It can be seen from the above description that the two sub-assemblies can be completed only by connecting the four screw columns 23 with the positioning mounting holes 323, and two of the four screw columns 23 can be positioned through the positioning ring grooves, which is convenient for aligning and screwing in the screws.

[0031] In order to facilitate the installation of the high and low beam lighting device at other parts of the lamp, the lens bracket 2 of this embodiment is provided with a connecting flange 22, and the connecting flange 22 is provided with a mounting hole 221 for fixing.

[0032] Compared with the prior art, this embodiment can separate the high beam light source and the low beam light source through the nano-level aluminum plating layer 311. Compared with the isolation plate 31 with a millimeter-level thickness in the prior art, this embodiment does not reduce the isolation of the light source. Since the aluminum plating layer 311 is used in this embodiment, it can greatly alleviate the shading effect caused by the isolation plate 31, and significantly alleviate the phenomenon of the black area at the boundary between the high and low beams, thereby improving the driving safety during the use of the vehicle.

[0033] In terms of assembly process, both sub-assembly one and sub-assembly two of the present embodiment have the characteristics of simple installation. The installation method of the two sub-assemblies greatly reduces the assembly process, greatly improves production efficiency, and makes process control simpler; it reduces the number of parts, efficiently achieves performance and assembly efficiency, and reduces the cost of the entire lens module.

[0034] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A new type of highly integrated high and low beam lens module, characterized in that: The invention comprises an outer lens (1), a lens holder (2) and a dual-light inner lens (3), wherein the outer lens (1) is mounted on the front end of the lens holder (2), and the dual-light inner lens (3) comprises an isolation plate (31) for isolating high and low beams, and a lamp bead placement portion (32) for mounting a light source, wherein the lamp bead placement portion (32) is connected to the rear end of the isolation plate (31), and a circuit board (4) for mounting the lamp bead and a radiator (5) for dissipating heat from the circuit board (4) are sequentially arranged at the rear end of the lamp bead placement portion (32); The front side of the lamp bead placement portion (32) is provided with light emitting surfaces (321) respectively located on both sides of the isolation plate (31) and facing forward.

2. A novel highly integrated high and low beam lens module according to claim 1, characterized in that: The inner wall of the lens bracket (2) is also provided with a heat insulation sheet (21).

3. The novel highly integrated high and low beam lens module according to claim 1, characterized in that: The isolation sheet (31) comprises a transparent sheet (311) and an aluminum-plated layer (312) coated on the surface of the transparent sheet (311); the transparent sheet (311) is connected to the lamp bead placement portion (32).

4. The novel highly integrated high and low beam lens module according to claim 3, characterized in that: The aluminum-plated layer (312) is located on a side close to the low-beam lamp relative to the transparent sheet (311).

5. The novel highly integrated high and low beam lens module according to claim 1, characterized in that: The lamp bead placement portion (32) is provided with at least two clamping claws (33), and the heat sink (5) cooperates with the clamping claws (33) via clamping holes (51).

6. The novel highly integrated high and low beam lens module according to claim 5, characterized in that: The lamp bead placement portion (32) is provided with at least two laterally distributed positioning columns (35), and the heat sink (5) cooperates with the positioning columns (35) via positioning holes (52).

7. The novel highly integrated high and low beam lens module according to claim 1, characterized in that: The lens bracket (2) is provided with a connecting flange (22), and the connecting flange (22) is provided with a mounting hole (221).

8. The novel highly integrated high and low beam lens module according to claim 1, characterized in that: Positioning installation holes (323) are also provided at both ends of the lamp bead placement portion (32); the lens bracket (2) is connected to the positioning installation holes (323) via screw columns (23); there are two positioning installation holes (323) at each end, and at least one of the two positioning installation holes (323) has a positioning ring groove.

9. The novel highly integrated high and low beam lens module according to claim 7, characterized in that: The connection flange (22) is provided with a screw column (23), and the screw column (23) is connected to the lamp bead placement portion (32) and the heat sink (5) through screws.

10. A vehicle lamp, characterized in that: A novel highly integrated high and low beam lens module comprising any one of claims 1 to 9.

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