CN211260668U

CN211260668U - Optical system for solving stray light caused by accumulated paint

Info

Publication number: CN211260668U
Application number: CN201922404656.0U
Authority: CN
Inventors: 何贤飞
Original assignee: Magneti Marelli Automotive Components Wuhu Co Ltd
Current assignee: Magneti Marelli Automotive Components Wuhu Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-14
Anticipated expiration: 2029-12-27

Abstract

The utility model provides a solve stray light optical system who causes by long-pending lacquer, including radiator and PCB board, the radiator passes through first screw fixation on the PCB board, PCB board below is provided with the reflection bowl, the reflection bowl passes through the second screw and is connected with the PCB board, forms a simple and easy short-distance beam system of constituteing by the light source of PCB board and reflection bowl, forms short-distance beam type on the 25m screen, there is long-pending lacquer position on the reflection bowl, the long-pending lacquer position of reflection bowl designs into the light cross light-emitting, makes original stray light controlled in main part short-distance beam type to obtain clear cut-off line, can not additionally cause new stray light. By using a cross light design method, local fine adjustment design is carried out on the part of the reflecting bowl, which is easy to accumulate paint, so that the aim of avoiding the stray light from dazzling light spots in the regulation test is fulfilled, and meanwhile, the optical efficiency is ensured while no new stray light is caused.

Description

Optical system for solving stray light caused by accumulated paint

Technical Field

The utility model relates to an automobile lamp technical field especially relates to a solve stray light's optical system that causes by long-pending lacquer.

Background

In the vehicle headlight regulations in any country, there is a clear upper limit for the low-beam glare value, for example, in the european standard, which cannot be higher than 625 cd. The requirements of the laws and regulations on glare well protect the driving safety of oncoming vehicles and the safety of pedestrians on the road. At present, more and more low-beam reflecting bowls in the market are made of BMC materials, the high thermal stability and the good forming performance of the low-beam reflecting bowls are loved by people, but the adhesion capability of aluminum is poor due to the fact that the surfaces of the low-beam reflecting bowls are thick and super, a layer of primer needs to be sprayed on a mould piece, then aluminum is plated, in the process of spraying the primer, primer accumulation can be inevitably caused on the part of the optical surface of the reflecting bowl, serious dazzling stray light is caused, the optical effect deviates from the expected design, opposite vehicles or pedestrians are affected, and even the requirements of regulations can not be met.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, the utility model aims at providing a solve by long-pending optical system of stray light that lacquer caused, carry out light cross design through the optical surface position to long-pending lacquer easily, but the stray light that long-pending lacquer caused is controlled well to keep away from the rule requirement and dazzle the light test point.

The utility model provides a solve stray light optical system who causes by long-pending lacquer, including radiator and PCB board, the radiator passes through first screw fixation on the PCB board, PCB board below is provided with the reflection bowl, the reflection bowl passes through the second screw and is connected with the PCB board, forms a simple and easy short-distance beam system of constituteing by the light source of PCB board and reflection bowl, forms short-distance beam type on the 25m screen, there is long-pending lacquer position on the reflection bowl, the long-pending lacquer position of reflection bowl designs into the light cross light-emitting, makes original stray light controlled in main part short-distance beam type to obtain clear cut-off line, can not additionally cause new stray light.

The further improvement lies in that: the shape of the accumulated paint part is concave, so that the accumulated paint part forms light rays to emit light in a crossed manner.

The further improvement lies in that: the reflecting bowl is made of BMC materials, and the reflecting bowl is subjected to aluminum plating treatment after being coated with primer.

The further improvement lies in that: the light source is a PCB integrated LED light source group or an independent bulb light source.

Under normal conditions, when not using the optical system of this patent, reflection bowl position causes long-pending lacquer easily, and the bottom of other optical surfaces of reflection bowl also can cause long-pending lacquer in the same way, takes the position as the analysis case in this embodiment. As shown in fig. 2, when the design method of the present patent is not adopted, since the paint deposition part generates a diffusion effect on light emitted by the light source, stray light near the low beam type HV point is caused, the cut-off line of the low beam type is blurred due to the stray light, and the glare value exceeds the upper limit of the regulation.

When implementing the utility model discloses in the optical system who mentions, be about to the long-pending lacquer position of reflection bowl design into the light after alternately light-emitting, stray light originally is controlled in main part low beam type to obtain clear cut-off line, can not additionally cause new stray light. Owing to implement the light type behind this patent and not disappearing by empty, but in low beam light type, so can not produce negative effects to optical efficiency, in addition because the light type compares whole low beam energy, very weak, so when superpose to low beam main part light type after, can not cause the inhomogeneous phenomenon of low beam, this design method can overcome the severity of different long-pending lacquer through the size of design cross light optical surface according to the paint spraying process condition of difference.

The utility model has the advantages that: by using a cross light design method, local fine adjustment design is carried out on the part of the reflecting bowl, which is easy to accumulate paint, so that the aim of avoiding the stray light from dazzling light spots in the regulation test is fulfilled, and meanwhile, the optical efficiency is ensured while no new stray light is caused.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of stray light not used in the present invention.

Fig. 3 is a schematic diagram of the effect of using the present invention.

Wherein: 1-radiator, 2-PCB board, 3-first screw, 4-reflection bowl, 5-second screw, 6-lacquer deposition part.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

As shown in fig. 1, the present embodiment provides an optical system for solving stray light caused by paint deposition, including a heat sink 1 and a PCB board 2, the heat sink 1 is fixed on the PCB board 2 through a first screw 3, a reflection bowl 4 is arranged below the PCB board 2, the reflection bowl 4 is connected with the PCB board 2 through a second screw 5, a simple low beam system composed of a light source of the PCB board 2 and the reflection bowl 4 is formed, a low beam type is formed on a 25m screen, a paint deposition part 6 is arranged on the reflection bowl 4, the paint deposition part 6 of the reflection bowl 4 is designed to be crossed to emit light, so that the original stray light is controlled in the low beam type of a main body, thereby obtaining a clear cut-off line, and not additionally causing new stray light. The shape of the accumulated paint part 6 is concave, so that the accumulated paint part 6 emits light in a light crossing manner. The reflecting bowl 4 is a reflecting bowl made of BMC (bulk molding compound) material, and the reflecting bowl 4 is subjected to aluminum plating treatment after being coated with primer. The light source is an LED light source group integrated with the PCB 2. By using a cross light design method, local fine adjustment design is carried out on the part of the reflecting bowl, which is easy to accumulate paint, so that the aim of avoiding the stray light from dazzling light spots in the regulation test is fulfilled, and meanwhile, the optical efficiency is ensured while no new stray light is caused.

Claims

1. The utility model provides a solve stray light's optical system who causes by long-pending lacquer, includes radiator (1) and PCB board (2), radiator (1) is fixed on PCB board (2) through first screw (3), PCB board (2) below is provided with reflection bowl (4), reflection bowl (4) are connected with PCB board (2) through second screw (5), form a simple and easy low beam system of constituteing by the light source of PCB board (2) and reflection bowl (4), form low beam type on 25m screen, its characterized in that: the reflection bowl (4) is provided with a paint accumulation part (6), the paint accumulation part (6) of the reflection bowl (4) is designed to be crossed to emit light, and the original stray light is controlled in the main body low beam type, so that a clear cut-off line is obtained, and new stray light cannot be caused additionally.

2. An optical system for addressing stray light caused by lacquer build-up as claimed in claim 1, wherein: the shape of the paint accumulation part (6) is concave, so that the paint accumulation part (6) emits light in a light crossing manner.

3. An optical system for addressing stray light caused by lacquer build-up as claimed in claim 1, wherein: the reflecting bowl (4) is made of BMC materials, and the reflecting bowl (4) is subjected to aluminum plating treatment after being coated with primer.

4. An optical system for addressing stray light caused by lacquer build-up as claimed in claim 1, wherein: the light source is an LED light source group integrated with the PCB (2) or an independent bulb light source.