A LED multi-module focusing unit splicing type high and low beam system

Abstract

The invention relates to the field of automobile lamp lighting system design, and in particular to an LED multi-module focusing unit splicing type high and low beam system, wherein a high beam sub-assembly comprises a plurality of first focusing units, and a low beam sub-assembly comprises a plurality of second focusing units. A high beam PCB board with a plurality of first LED lamps is arranged on the high beam sub-assembly, and each first LED lamp is irradiated into a focusing cavity of a corresponding first focusing unit. A plurality of low beam PCB boards are arranged on the low beam sub-assembly, and the number of the low beam PCB boards is the same as the number of the second focusing units and corresponds one to one. A second LED lamp is arranged on each low beam PCB board, and the second LED lamp is irradiated into the focusing cavity of the corresponding second focusing unit. The first LED lamp irradiates into the first focusing unit to obtain a high beam light pattern, and the second LED lamp irradiates into the second focusing unit to obtain a low beam cutoff line light pattern and a low beam widening light pattern. Each second LED lamp can be adjusted individually to ensure that the entire system can obtain a good light pattern.

Description

Technical Field

[0001] The invention relates to the field of automobile lamp lighting system design, and in particular to an LED multi-module focusing unit splicing type high and low beam system. Background Art

[0002] With the popularization of LED light sources, the use of a lower-cost, simple LED + focusing unit system to achieve a good light shape and clear cut-off line can not only help drivers better observe road conditions, but also benefit the safety of oncoming vehicles and pedestrians. At present, the common low beam methods on the market are:

[0003] (1) It is achieved by combining high-power LEDs and 1 to 3 focusing units;

[0004] (2) The focusing unit material is PC, using aluminum plating technology;

[0005] (3) The radiator uses die-cast aluminum to achieve passive heat dissipation.

[0006] Since the focusing unit splicing sub-assembly is deformed when it is locked with the die-cast aluminum, the cut-off line is unclear, overlapped, or does not match other light patterns to meet regulations or customer requirements, which can not guarantee that regulatory requirements are met and affects driving experience, which can easily cause traffic accidents. Summary of the invention

[0007] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a LED multi-module focusing unit splicing type high and low beam system, which can obtain a good light shape and improve the stability of the internal system structure of the lamp.

[0008] The technical solution adopted by the present invention to solve its technical problems is: an LED multi-module focusing unit splicing type high and low beam system, including a high beam sub-assembly and a low beam sub-assembly, the high beam sub-assembly is composed of a plurality of first focusing units arranged horizontally, the low beam sub-assembly is composed of a plurality of second focusing units arranged horizontally, the high beam sub-assembly and the low beam sub-assembly are horizontally spliced ​​together, a high beam PCB board is arranged on the high beam sub-assembly, a plurality of first LED lamps are arranged on the high beam PCB board, the number of the first LED lamps is the same as the number of the first focusing units, the first LED lamps and the first focusing units correspond one to one and each first LED lamp is irradiated in the focusing cavity of the corresponding first focusing unit, and a plurality of near beam sub-assemblies are arranged on the low beam sub-assembly. The low-beam PCB board is provided with a plurality of low-beam PCB boards, the number of low-beam PCB boards is the same as the number of second focusing units and corresponds one to one, a second LED lamp is arranged on each low-beam PCB board, the second LED lamp irradiates the inside of the focusing cavity of the corresponding second focusing unit, a high-beam sub-assembly and a low-beam sub-assembly are installed on a mounting shell, the mounting shell is connected to a ball head seat on a lamp housing through a first ball head fixing mechanism, a high-beam left-right dimming mechanism for moving the mounting shell left-right and a high-beam up-down dimming mechanism for moving the mounting shell up-down are arranged on the mounting shell, the high-beam sub-assembly is connected to the ball head seat on the mounting shell through a second ball head fixing mechanism, and a high-beam up-down dimming mechanism for moving the high-beam sub-assembly up-down is arranged on the mounting shell.

[0009] The low beam PCB board and the high beam PCB board are aluminum plates.

[0010] The height of the high beam PCB board is adjustable by a first gasket between the high beam PCB board and the high beam sub-assembly, and the height of the low beam PCB board is adjustable by a second gasket between the low beam PCB board and the low beam sub-assembly.

[0011] Beneficial effect: the first LED lamp on the high-beam PCB board is irradiated into the focusing cavity of the first focusing unit to obtain the high-beam light pattern, the second LED lamps on several low-beam PCB boards are irradiated into the focusing cavity of the second focusing unit to obtain the low-beam cutoff line light pattern, and the second LED lamps on the remaining low-beam PCB boards are irradiated into the focusing cavity of the second focusing unit to obtain the low-beam widened light pattern. Since the accuracy requirements of the low-beam cutoff line light pattern and the low-beam widened light pattern are higher than the accuracy requirements of the high-beam light pattern, each second focusing unit in the low-beam sub-assembly corresponds to a low-beam PCB board with a second LED lamp, so that each second LED lamp and the low-beam PCB board can be adjusted individually, thereby ensuring that the entire system can obtain a good light pattern and improving the stability of the internal system structure of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 It is a structural diagram of another state of the present invention. DETAILED DESCRIPTION

[0014] Combine the following Figure 1-2 , the present invention is further described.

[0015] A LED multi-module focusing unit splicing type high and low beam system, comprising a high beam sub-assembly 10 and a low beam sub-assembly 20, the high beam sub-assembly 10 is composed of a plurality of first focusing units 11 arranged horizontally, the low beam sub-assembly 20 is composed of a plurality of second focusing units 21 arranged horizontally, the high beam sub-assembly 10 and the low beam sub-assembly 20 are horizontally spliced ​​together, a high beam PCB board 30 is arranged on the high beam sub-assembly 10, a plurality of first LED lamps are arranged on the high beam PCB board 30, the number of the first LED lamps is the same as the number of the first focusing units 11, the first LED lamps and the first focusing units 11 correspond one to one and each first LED lamp is irradiated in the focusing cavity of the corresponding first focusing unit 11, a plurality of low beam PCB boards 40 are arranged on the low beam sub-assembly 20, the low beam PCB board 40 The number of the low beam sub-assembly 10 is the same as the number of the second focusing units 21 and corresponds one to one, and the second LED lamp is arranged on each low beam PCB board 40, and the second LED lamp irradiates the inside of the focusing cavity of the corresponding second focusing unit 21, and the high beam sub-assembly 10 and the low beam sub-assembly 20 are installed on the mounting shell 50, and the mounting shell 50 is connected to the ball head seat on the lamp housing through the first ball head fixing mechanism 61, and the mounting shell 50 is arranged with a high and low beam left and right dimming mechanism 62 for moving the mounting shell 50 left and right and a high and low beam up and down dimming mechanism 63 for moving the mounting shell 50 up and down, the high beam sub-assembly 10 is connected to the ball head seat on the mounting shell 50 through the second ball head fixing mechanism 71, and the mounting shell 50 is arranged with a high beam up and down dimming mechanism 72 for moving the high beam sub-assembly 10 up and down. The first LED lamp on the high beam PCB board 30 is irradiated into the focusing cavity of the first focusing unit 11 to obtain the high beam light pattern, the second LED lamps of several low beam PCB boards 40 are irradiated into the focusing cavity of the second focusing unit 21 to obtain the low beam cutoff line light pattern, and the second LED lamps on the remaining low beam PCB boards 40 are irradiated into the focusing cavity of the second focusing unit 21 to obtain the low beam widened light pattern. Since the accuracy requirements of the low beam cutoff line light pattern and the low beam widened light pattern are higher than the accuracy requirements of the high beam light pattern, each second focusing unit 21 in the low beam sub-assembly 20 corresponds to a low beam PCB board 40 with a second LED lamp, so that each second LED lamp and the low beam PCB board 40 can be adjusted individually, ensuring that the entire system can obtain a good light pattern and improving the stability of the internal system structure of the lamp. In addition, the high and low beam up and down dimming mechanism 63 and the high beam up and down dimming mechanism 72 can be driven by the motor and the lead screw nut mechanism to move up and down, and the high and low beam left and right dimming mechanism 62 can be directly adjusted left and right by twisting. The up and down dimming and left and right dimming belong to the structures in the prior art and are not described in detail in this application. The mounting shell 50 drives the high beam sub-assembly 10 and the low beam sub-assembly 20 to adjust up and down or left and right at the same time. The high beam sub-assembly 10 can be adjusted up and down alone. Multiple adjustments can ensure a good match between the high beam light type and the low beam cutoff line light type and the low beam widening light type.

[0016] Preferably, the low beam PCB board 40 and the high beam PCB board 30 are aluminum plates, which have good heat dissipation performance and low cost.

[0017] Furthermore, the height of the high beam PCB board 30 is adjustable through a first gasket between the high beam PCB board 30 and the high beam sub-assembly 10, and the height of the low beam PCB board 40 is adjustable through a second gasket between the low beam PCB board 40 and the low beam sub-assembly 20, thereby reducing the impact of manufacturing deviations and facilitating the acquisition of a good light shape.

[0018] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. An LED multi-module focusing unit splicing type high and low beam system, characterized by: The invention comprises a high-beam sub-assembly (10) and a low-beam sub-assembly (20), wherein the high-beam sub-assembly (10) is formed by a plurality of first light-gathering units (11) arranged transversely, and the low-beam sub-assembly (20) is formed by a plurality of second light-gathering units (21) arranged transversely, and the high-beam sub-assembly (10) and the low-beam sub-assembly (20) are spliced ​​together transversely, a high-beam PCB board (30) is arranged on the high-beam sub-assembly (10), and a plurality of first LED lamps are arranged on the high-beam PCB board (30), the number of the first LED lamps is the same as the number of the first light-gathering units (11), the first LED lamps and the first light-gathering units (11) correspond one to one, and each first LED lamp is irradiated into the light-gathering cavity of the corresponding first light-gathering unit (11), and a plurality of low-beam PCB boards (40) are arranged on the low-beam sub-assembly (20), and the number of the low-beam PCB boards (40) and the number of the second light-gathering units (21) are equal. ) are the same in number and correspond one to one, a second LED lamp is arranged on each low-beam PCB board (40), and the second LED lamp irradiates the interior of the focusing cavity of the corresponding second focusing unit (21), the high-beam sub-assembly (10) and the low-beam sub-assembly (20) are mounted on a mounting shell (50), the mounting shell (50) is connected to a ball head seat on a lamp housing via a first ball head fixing mechanism (61), a high-beam left-right dimming mechanism (62) for moving the mounting shell (50) left-right and a high-beam up-down dimming mechanism (63) for moving the mounting shell (50) up-down are arranged on the mounting shell (50), the high-beam sub-assembly (10) is connected to a ball head seat on the mounting shell (50) via a second ball head fixing mechanism (71), and a high-beam up-down dimming mechanism (72) for moving the high-beam sub-assembly (10) up-down is arranged on the mounting shell (50).

2. The LED multi-module focusing unit splicing type high and low beam system according to claim 1, characterized in that: The low-beam PCB board (40) and the high-beam PCB board (30) are aluminum plates.

3. The LED multi-module focusing unit splicing type high and low beam system according to claim 2, characterized in that: A first gasket is provided between the high-beam PCB board (30) and the high-beam sub-assembly (10) to achieve height adjustment of the high-beam PCB board (30), and a second gasket is provided between the low-beam PCB board (40) and the low-beam sub-assembly (20) to achieve height adjustment of the low-beam PCB board (40).

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