CN108662539A - A kind of baffle plate assembly of high reflectance for lens module - Google Patents

Abstract

The present invention discloses a kind of baffle plate assembly of the high reflectance for lens module, belongs to LED car lamp lighting area.It includes light barrier, fixed baffle, barn door and U-shaped hood, and fixed baffle and barn door are horizontally fixed on the top of U-shaped hood, bottom surface respectively；Light barrier is horizontally fixed on the upper surface of fixed baffle；The front end face of light barrier is the curved surface of indent, is used to form the "cut-off"line of dipped beam；The mirror face stainless steel of the material selection high reflectance of light barrier, and its surface is carried out including the process aluminized, reflectivity is improved, reflectivity can reach 0.6 0.95.Structure of the invention is compact, easy for installation, by the process to baffle plate assembly, improves the reflectivity of baffle plate assembly.

Description

A high-reflectivity baffle assembly for a lens module

technical field

The invention belongs to the field of LED car lamp lighting, in particular to a high-reflection baffle assembly used for a lens module.

Background technique

LED light sources are used in automotive lighting because of their long life, high reliability, small size, low energy consumption, and short response time. With the maturity of high power, high luminous flux, and high illuminance LED technology, and the development trend of future automobiles in the direction of compactness, energy saving, safety, and intelligence, it will naturally become the choice of automotive lighting sources, and gradually replace halogen, The trend of HID light sources has been called the fourth generation of green light sources for automobiles by industry insiders.

The height of the low light and dark cut-off line of automobile headlights means the distance of the low beam on the road surface, and its high stability is very important for driving safety and driving experience. Due to its unique shape and compact structure, headlights with integrated far and near beams are receiving more and more attention. However, the far and near light integrated lens module composed of high-power LED light source uses a solenoid valve to drive the baffle to switch the far and near light, so that the structure of the far and near light switching of the LED dual-light lens module is not compact, and the manufacturing cost is high.

Contents of the invention

In order to solve the problem that the switching structure of the far and near light of the existing LED bifocal lens module is not compact and the manufacturing cost is high, the present invention provides a high-reflection lens module for the lens module with a compact structure, convenient installation and reduced manufacturing cost. Rate baffle assembly.

To achieve the above object, the present invention adopts the following technical solutions:

A high-reflectivity baffle assembly for a lens module, which includes a light baffle, a fixed baffle, a shading plate and a U-shaped hood, and the fixed baffle and the light hood are horizontally fixed on the top of the U-shaped hood , the bottom surface; the light blocking sheet is fixed horizontally on the fixed baffle; the front surface of the light blocking sheet is a concave curved surface, which is used to form the light and dark cut-off line of the low beam; the material of the light blocking sheet is high-reflectivity mirror stainless steel, And the surface is treated with aluminum plating to improve the reflectivity, and the reflectivity can reach 0.6-0.95.

Furthermore, when the lens module is turned on at low beam, the light-dark cut-off line is formed through the light-blocking sheet, and the adjustment of the solenoid valve to form the light-dark cut-off line is omitted. This method not only makes the whole lens module compact in structure, but also reduces the product cost. cost.

Further, the U-shaped hood is fixed in the cavity of the lens holder; the lens holder is closed along the circumference and its front and rear ends are open; the front end of the lens holder is equipped with a lens, and the rear end of the lens holder is connected to a radiator.

Further, viewed from the front of the lens module, the left plane of the light blocking sheet is higher than the right plane.

Further, the light blocking sheet is fixed on the fixed baffle by cold riveting; the thickness of the light blocking sheet is 0.1mm-0.4mm; the thickness of the fixed baffle is 0.4mm-0.6mm.

Further, the fixed baffle is fixed on the top surface of the U-shaped sunshade by heat riveting;

There are four riveting posts and two positioning posts on the U-shaped shading cover, and four corresponding riveting holes and two positioning holes are provided on the fixed baffle, one of which is a waist-shaped hole;

The shading plate is fixed on the bottom surface of the U-shape hood by four riveting posts to prevent the light from focusing while maintaining the maximum luminous flux.

Further, the front end of the U-shaped hood is positioned with the lens bracket through two positioning posts, and is reinforced by means of locking screws.

Beneficial effect:

1. When the lens module of the present invention works in the low beam part, the light-dark cut-off line is formed by the action of the light-blocking sheet, instead of the light-dark cut-off line formed by driving the baffle plate through the solenoid valve, which not only reduces the production cost of the lens module , and also make the lens module compact.

2. The present invention improves the reflectivity of the light-shielding sheet through processes such as aluminum plating, thereby greatly improving the efficiency of the LED.

Description of drawings

1 is a schematic diagram of the overall structure of a lens module according to an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a baffle assembly according to an embodiment of the present invention;

Fig. 3 is a top view of a baffle assembly according to an embodiment of the present invention;

In the figure: 1-light blocking sheet, 2-fixed baffle, 3-lens bracket, 4-lens, 5-shading plate, 6-U-shaped shading cover, 7-second inner lampshade, 8-second LED module , 9-radiator, 10-the first LED module, 11-the first inner lampshade.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

This embodiment proposes a high-reflectivity baffle assembly for lens modules, as shown in Figures 2 and 3, it includes a light baffle 1, a fixed baffle 2, a light shield 5 and a U-shaped light shield 6, The fixed baffle plate 2 and the light shielding plate 5 are horizontally fixed on the top and bottom surfaces of the U-shaped light shield 6 respectively; the light blocking sheet 1 is horizontally fixed on the top of the fixed blocking plate 2; the front end surface of the light blocking sheet 1 is a concave curved surface, In order to form the light and dark cut-off line of the low beam; the material of the light blocking sheet 1 is made of mirror stainless steel with high reflectivity, and its surface is processed including aluminum plating; when viewed from the front of the lens module, the left plane of the light blocking sheet 1 above the right plane.

As shown in Figure 1, U-shaped light shield 6 is fixed in the cavity of lens holder 3; Lens holder 3 is closed along the circumferential direction and front and rear ends are open shape; The front end of lens holder 3 is equipped with lens 4, and lens holder The rear end of 3 is connected with a radiator 9; the second LED module 8 and the first LED module 10 are installed on the radiator 9, and the second inner LED module 8 and the first LED module 10 are installed respectively. The lampshade 7 and the first inner lampshade 11 .

In this embodiment, first, the fixed baffle 2 and the light-blocking sheet 1 are provided with five holes, and the light-blocking sheet 1 is fixed on the fixed baffle 2 by cold riveting. When turned on, the light-blocking sheet 1 can block the light emitted by the second LED module 8 to form an obvious cut-off line of low light and dark. Secondly, the top surface of the fixed baffle plate 2 and the U-shape shading cover 6 is positioned by two positioning posts, and fixed by hot riveting by four riveting posts. The shading plate 5 is fixed on the bottom surface of the U-shaped shading cover 6 by four riveting posts, so as to prevent the light from focusing while maintaining the maximum luminous flux. Furthermore, the U-shaped light shield 6 and the lens holder 3 are positioned through two positioning posts, and fixed by locking two screws.

For the limitation of the protection scope of the present invention, those skilled in the art should understand that on the basis of the technical solution of the present invention, various modifications or deformations that those skilled in the art can make without creative labor are still within the protection scope of the present invention within.

Claims (7)

1. a baffle assembly of high reflectivity for lens modules, characterized in that: it comprises a light baffle (1), a fixed baffle (2), a light shield (5) and a U-shaped light shield (6 ), the fixed baffle (2) and the shading plate (5) are horizontally fixed on the top and bottom surfaces of the U-shaped shading cover (6) respectively; the light baffle (1) is horizontally fixed on the fixed The top of the baffle (2); the front end surface of the light baffle (1) is a concave curved surface, which is used to form the light and dark cut-off line of the low beam; the material of the light baffle (1) is selected from high reflectivity Mirror stainless steel, and its surface is processed including aluminum plating. 2. The high-reflectivity baffle assembly for lens modules according to claim 1, characterized in that: when the lens module is turned on with low beams, light and shade are formed by the light baffle (1) cutoff line. 3. The baffle assembly with high reflectivity for lens modules according to claim 1 or 2, characterized in that: the U-shaped light shield (6) is fixed in the cavity of the lens holder (3); The lens holder (3) is circumferentially closed and its front and rear ends are open; the front end of the lens holder (3) is equipped with a lens (4), and the rear end of the lens holder (3) is connected with a cooling device (9). 4. The baffle assembly with high reflectivity for lens module according to claim 1 or 2, characterized in that: when viewed from the front of the lens module, the left plane of the light baffle (1) above the right plane. 5. The high-reflectivity baffle assembly for lens modules according to claim 1, characterized in that: the light baffle (1) is fixed to the fixed baffle (2) by cold riveting above; the thickness of the light blocking sheet (1) is 0.1mm-0.4mm; the thickness of the fixed baffle (2) is 0.4mm-0.6mm. 6. The baffle assembly with high reflectivity for lens module according to claim 1, characterized in that: the fixed baffle (2) is fixed on the U-shaped shading cover (6) by heat riveting ) top surface; The U-shaped shading cover (6) is provided with four riveting posts and two positioning posts, and the fixed baffle (2) is provided with corresponding four riveting holes and two positioning holes, one of which is Waist hole; The shading plate (5) is fixed on the bottom surface of the U-shape shading cover (6) through four rivets. 7. The high-reflectivity baffle assembly for lens modules according to claim 3, characterized in that: the U-shaped light shield (6) is positioned with the lens holder (3) by two positioning posts , and reinforced by locking screws.