Auxiliary high beam and low beam module and automobile headlamp
By optimizing the lens bracket and light shield design of the automotive headlights, the challenges of the high and low beam modules in size and heat dissipation are solved, and a compact and efficient light source layout is achieved, improving performance and safety.
Patent Information
- Application Number
- CN202422127366.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing automotive headlight high and low beam modules have too large size while improving performance, and have problems such as low brightness and narrow light type, which is difficult to meet the compactness and heat dissipation requirements of modern headlight designs. In addition, traditional modules have challenges in projection cut-off line matching.
An auxiliary high and low beam module is designed, including a lens bracket, circuit board, first and second light shielding plates and sunlight shielding plates. The light distribution is optimized by setting convex strips and blocking parts, and combined with an integrated auxiliary high and low beam condenser and radiator, the light source layout and heat dissipation structure are optimized.
It realizes compact module structure, reduces production costs, improves performance and safety, meets various regulatory requirements, and improves the reusability and safety of modules.
Smart Images
Figure CN223063698U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamps, in particular to an auxiliary high and low beam module and an automobile headlamp. Background Art
[0002] With the development of the automotive industry, automobiles have become the main means of transportation in modern society. Automobile headlamps are lighting fixtures used for road lighting and identifying obstacles ahead when driving under bad weather conditions, mainly used during night driving. High and low beam modules are widely used in automobile headlamps to generate low beam and high beam light beams.
[0003] As the lamp design space given by vehicle manufacturers to lamp design manufacturers becomes smaller and smaller, lamp design manufacturers need to reduce the space occupied by each part inside the lamp. However, with the establishment of evaluation criteria such as CACNP and CIASI and the improvement of customers' requirements for lamp performance, the size of the high and low beam module needs to be smaller and smaller while the performance is improved, and the structure is becoming more and more compact. In the increasingly competitive automotive industry, the R & D cycle is getting shorter and shorter. Lamp design manufacturers often borrow the high and low beam modules of the original project. However, most of the original modules have a gap with the current customer requirements in terms of performance and size. Some lamp factories will add auxiliary high and low beams on the original basis to make up for the gap between the original module and the customer requirements, but there are higher requirements for size and heat dissipation. Moreover, for the current new technologies of million-pixel modules and ten-thousand-pixel modules, there are problems such as low brightness and narrow light pattern. Lamp factories generally configure separate high and low beam modules to meet the requirements, but need to consider the coordination problem between the projection cut-off line and the high and low beam cut-off lines. Summary of the Utility Model
[0004] In view of the problems existing in the prior art, the utility model provides an auxiliary high and low beam module, including:
[0005] A lens bracket, with a lens assembly and a radiator respectively installed at both ends of the lens bracket;
[0006] A circuit board, installed inside the lens bracket on the side facing the radiator, and an auxiliary low beam light source and an auxiliary high beam light source are integrated on the circuit board;
[0007] A first light shield, installed inside the lens bracket, one end of the first light shield is located between the auxiliary low beam light source and the auxiliary high beam light source, and a convex strip protruding towards the auxiliary low beam light source is provided on the first light shield;
[0008] A second light shield, installed on the inner side wall of the lens bracket and above the first light shield, and a shielding portion bent towards the edge of the lens assembly is provided on the side of the second light shield facing the lens assembly.
[0009] Preferably, an integrated auxiliary high and low beam condenser is provided on the side of the circuit board facing away from the radiator.
[0010] Preferably, the second light shielding plate is located between the lens assembly and the integrated auxiliary high and low beam condenser.
[0011] Preferably, the surface of the second light shielding plate facing the inner side wall of the lens bracket is provided with columnar patterns.
[0012] Preferably, it further includes a sunlight light shielding plate, which is installed on the inner side wall of the lens bracket and is located on the opposite side of the second light shielding plate.
[0013] Preferably, the lens assembly is installed at one end of the lens bracket through a snap ring.
[0014] Preferably, the width of the rib is 2 mm - 10 mm, and the height of the rib is 1 mm - 3 mm.
[0015] The present utility model also provides an automotive headlamp, which includes the above-mentioned auxiliary high and low beam module.
[0016] The above technical solutions have the following advantages or beneficial effects:
[0017] 1) The high and low beam auxiliary module of the present utility model has a compact structure, is convenient to install, reduces the overall volume of the module, and lowers the production cost;
[0018] 2) By providing ribs on the first light shielding plate, the inflection point of the auxiliary low beam cut-off line is far from the low beam regulation area, which does not affect the cut-off line regulation of the main low beam module, can cooperate with modules with various regulation requirements, and meets the compensation for the long-distance illumination of the high beam on the road surface, improving the performance and safety, and enhancing the reusability of the module;
[0019] 3) By providing the second light shielding plate, the light converging on the edge part of the lens assembly due to the small size of the lens assembly can be blocked, the lens temperature is reduced, and the reflection of stray light on the lens bracket is weakened by the columnar patterns thereon, enhancing the safety of vehicle driving;
[0020] 4) By providing the sunlight baffle plate, the temperature rise of the module caused by the reverse focusing of sunlight by the lens is blocked, greatly reducing the module risk. Description of the Drawings
[0021] Figure 1 is an exploded view of an auxiliary high and low beam module in a preferred embodiment of the present utility model;
[0022] Figure 2 is an overall structural schematic diagram of an auxiliary high and low beam module in a preferred embodiment of the present utility model;
[0023] Figure 3 In a preferred embodiment of the present utility model, an assembly diagram of a radiator, a circuit board, and a condenser
[0024] Figure 4 In a preferred embodiment of the present utility model, an assembly diagram of a first light shield, a second light shield, a solar light shield, and a lens bracket Detailed implementation manners
[0025] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. The present utility model is not limited to this implementation manner, and as long as it conforms to the gist of the present utility model, other implementation manners may also fall within the scope of the present utility model.
[0026] In a preferred embodiment of the present utility model, in view of the above problems existing in the prior art, an auxiliary high and low beam module is provided, as Figures 1 to 4 shown, including:
[0027] A lens bracket 1, with a lens assembly 2 and a radiator 3 respectively installed at both ends of the lens bracket 1;
[0028] A circuit board 4, installed inside the lens bracket 1 on the side facing the radiator 3, and an auxiliary low beam light source 5 and an auxiliary high beam light source 6 are integrated on the circuit board 4;
[0029] A first light shield 7, installed inside the lens bracket 1, one end of the first light shield 7 is located between the auxiliary low beam light source 4 and the auxiliary high beam light source 6, and a rib 8 protruding towards the auxiliary low beam light source 4 is provided on the first light shield 7;
[0030] A second light shield 9, installed on the inner side wall of the lens bracket 1 and above the first light shield 7, and a shielding portion 10 bent towards the edge of the lens assembly 2 is provided on the side of the second light shield 9 facing the lens assembly 2.
[0031] Specifically, in this embodiment, the auxiliary low beam light source 5 and the auxiliary high beam light source 6 are LED light sources, arranged on the same circuit board 4. An integrated auxiliary high and low beam condenser 11 is provided on the side of the circuit board 4 facing away from the radiator 3. The integrated auxiliary high and low beam condenser 11 is preferably fixed to the radiator 3 by screws passing through the circuit board 4, saving space and making the overall structure square and convenient for space utilization. The integrated auxiliary high and low beam condenser 11 is used to converge and refract the light emitted by the LED light sources, and form a bright and dark dividing line for the auxiliary low beam distribution through the first light shield 7, and finally form the auxiliary low beam and the auxiliary high beam through the lens assembly 2 to complete the auxiliary high and low beam function.
[0032] Among them, the first light shield 7 is integrated into the lens bracket 1 by means of a thermal anchor, and the second light shield 9 is integrated into the lens bracket 1 by means of injection molding, saving space while ensuring the function.
[0033] Furthermore, as Figure 1 shown, multiple auxiliary low beam light sources 5 form a row, and multiple auxiliary high beam light sources 6 form a row. Looking along the direction perpendicular to the radiator 3 to the lens assembly 2, the first light shield 7 falls between the auxiliary low beam light sources 5 and the auxiliary high beam light sources 6. It can be understood that Figure 1 merely as an example, the distribution manner of the auxiliary low beam light sources 5 and the auxiliary high beam light sources 6 is not limited thereto, as long as it is ensured that the first light shield 7 falls between the auxiliary low beam light sources 5 and the auxiliary high beam light sources 6, and the convex part faces the area where the auxiliary low beam light sources 5 are located.
[0034] By providing a rib 8 on the first light shield 7, the rib 8 is preferably located at the middle position of the first light shield 7, so that the inflection point of the auxiliary low beam cut-off line is far from the low beam regulation position, without affecting the cut-off line regulation of the main low beam module, can cooperate with modules with various regulation requirements, and meet the compensation for the long-distance illumination of the high beam road surface, improving the performance and safety, and enhancing the reusability of the module.
[0035] Preferably, the width of the rib 8 is 2 mm - 10 mm, and the height of the rib 8 is 1 mm - 3 mm, so as to form a light-shielding area of 1 - 5 degrees left and right and 1 - 3 degrees below the HV point corresponding to the auxiliary low beam, avoiding affecting the position of the inflection point of the low beam cut-off line.
[0036] Furthermore, considering the possible temperature risk caused by the reduction of the module heat dissipation, the present utility model also correspondingly provides a second light shield 9 and a sunlight light shield 13. Among them, the second light shield 9 is located between the lens assembly 2 and the integrated auxiliary high and low beam condenser 11, and the sunlight light shield 13 is installed on the inner side wall of the lens bracket 1 and on the opposite side of the second light shield 9. By providing a shielding portion 10, the second light shield 9 is integrally in an L shape. The setting of the shielding portion 10 shields the light converging on the edge portion of the lens assembly due to the smaller lens assembly, reducing the lens temperature.
[0037] In a preferred embodiment of the present utility model, the surface of the second light shield 9 facing the inner side wall of the lens bracket 1 is provided with columnar patterns 12.
[0038] Specifically, by providing the columnar patterns 12, the reflection of stray light on the lens bracket 1 is weakened, enhancing the safety of vehicle driving.
[0039] In a preferred embodiment of the present utility model, the lens assembly 2 is installed at one end of the lens bracket 1 through a snap ring 14.
[0040] The present utility model also provides an automotive headlamp, which includes the above-mentioned auxiliary high and low beam module.
[0041] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be realized that all the solutions obtained by equivalent substitution and obvious changes made by using the content of this specification and the drawings should be included in the protection scope of the present utility model.
Claims
1. An auxiliary high and low beam module, characterized in that, Comprising: A lens bracket, with a lens assembly and a radiator respectively installed at both ends of the lens bracket; A circuit board, installed inside the lens bracket on the side facing the radiator, and an auxiliary low beam light source and an auxiliary high beam light source are integrated on the circuit board; A first light shielding plate, installed inside the lens bracket, one end of the first light shielding plate is located between the auxiliary low beam light source and the auxiliary high beam light source, and a rib protruding towards the auxiliary low beam light source is provided on the first light shielding plate; A second light shielding plate, installed on the inner side wall of the lens bracket and above the first light shielding plate, and a shielding portion bent towards the edge of the lens assembly is provided on the side of the second light shielding plate facing the lens assembly.
2. The auxiliary high and low beam module according to claim 1, wherein An integrated auxiliary low and high beam condenser is provided on the side of the circuit board facing away from the radiator.
3. The auxiliary high and low beam module according to claim 2, characterized in that, The second light shielding plate is located between the lens assembly and the integrated auxiliary low and high beam condenser.
4. The auxiliary high and low beam module according to claim 1, wherein The surface of the second light shielding plate facing the inner side wall of the lens bracket is provided with columnar patterns.
5. The auxiliary high and low beam module according to claim 1, wherein It further includes a sunlight light shielding plate, installed on the inner side wall of the lens bracket and on the opposite side of the second light shielding plate.
6. The auxiliary high and low beam module according to claim 1, characterized in that The lens assembly is installed at one end of the lens bracket through a snap ring.
7. The auxiliary high and low beam module according to claim 1, characterized in that, The width of the rib is 2 mm - 10 mm, and the height of the rib is 1 mm - 3 mm.
8. A motor vehicle headlamp, characterized in that, Comprising the auxiliary low and high beam module according to any one of claims 1 - 7.