Matrix type LED headlamp
By employing a fan structure and ventilation hole design within the buffer cavity in the matrix LED headlights, the problem of heat accumulation when the vehicle is stationary is solved, achieving efficient heat dissipation and light uniformity during driving and parking, thus improving heat dissipation efficiency and light uniformity.
Patent Information
- Application Number
- CN202520343136.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing matrix LED headlights lack high-speed airflow when the vehicle is stationary, leading to heat buildup and affecting heat dissipation.
The system employs a fan structure within the buffer cavity. When the car is in motion, it utilizes strong convection airflow for cooling. When the car is parked, the fan draws in cold air and blows out hot air to accelerate heat dissipation. Ventilation holes are provided on the mounting plate to increase the contact area of cold air. At the same time, a light homogenizing plate is used to compensate for the dark areas of the LED light circuit to improve the light homogenization effect.
It can effectively dissipate heat when the car is in motion or parked, improve heat dissipation efficiency, avoid increasing thickness, enhance light uniformity, improve LED backlight effect, and improve heat dissipation efficiency.
Smart Images
Figure CN223740622U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of LED headlamp, especially relates to a matrix type LED headlamp. BACKGROUND
[0002] Matrix headlamp is an advanced automotive lighting technology, its core feature is to have multiple independently controlled light emitting units, usually these units are composed of LEDs (light emitting diode). Each LED unit can be individually turned on or off, thereby realizing fine control of light. This design enables the headlamp to flexibly adjust the shape, intensity and irradiation range of the light beam according to different driving environments and needs, providing more accurate and adaptive lighting effect.
[0003] At present, the heat generated by the LED during work is conducted to the aluminum radiator with good thermal conductivity through the circuit board by conduction. The fins of the aluminum radiator are in large-area contact with air, transferring heat to air, thereby realizing heat dissipation, and the temperature on the radiator is taken away by the strong convection air cooling effect in the engine compartment, achieving the effect of cooling. In the process of stopping the vehicle, the lack of high-speed airflow, the temperature of the radiator is not timely dissipated, and heat accumulation is easy to form, affecting the use of the LED lamp. SUMMARY
[0004] The utility model wants to overcome the prior art's insufficient, provide a structure simple, the matrix type LED headlamp that good heat dissipation effect has.
[0005] The utility model adopts the technical scheme: the utility model discloses a shell, the lamp control component of setting in the shell, the mounting plate of setting in one side of the shell, the matrix lamp subassembly of setting in the mounting plate and with the gland of buckle connection of the shell, the shell forms the mounting cavity that lamp control component fixed connection is supplied, the downside of the shell is provided with two for the gas accumulation buffer cavity, every buffer cavity all with the mounting cavity is communicated, every buffer cavity all is provided with the electric fan for accelerating the gas flow in.
[0006] Further, the upper end of the mounting cavity is provided with two locking pieces, the mounting plate is provided with two reserved holes corresponding to the corresponding locking pieces, the middle part of the mounting plate is formed with a groove for placing the matrix lamp subassembly, a plurality of air holes are arranged in the groove, and limit grooves are further formed on both sides of the mounting plate.
[0007] Further, the matrix lamp assembly comprises a matrix lamp plate and a light uniformizing plate, the matrix lamp plate is arranged in the groove, both sides of the matrix lamp plate are formed with limiting strips matched with the limiting grooves, the light uniformizing plate is tightly attached to the matrix lamp plate, the matrix lamp plate is formed with a plurality of openings, and the light uniformizing plate is formed with a plurality of convex blocks matched with the openings.
[0008] Further, the light uniformizing plate is formed with a plurality of light transmission holes through which light rays directly pass, and both sides of the light uniformizing plate are formed with pressing pieces matched with the limiting grooves.
[0009] Further, both sides of the mounting plate are provided with clamping grooves buckled with the pressing covers.
[0010] Further, the pressing cover is provided with a light transmission plate at the middle part, both ends of the pressing cover are provided with limiting buckles buckled with the clamping grooves, the upper end of the pressing cover is formed with a connecting block matched with the mounting plate, and the bottom of the pressing cover is formed with a pressing block tightly matched with the matrix lamp assembly.
[0011] The beneficial effects of the matrix lamp assembly are as follows: the two buffer cavities form a convection structure in the installation cavity, the two electric fans stop rotating under the driving condition of the automobile, the strong convection wind cooling effect during driving removes the temperature in the installation cavity, the cooling effect is achieved, when the automobile stops, the two electric fans are started, one electric fan draws in cold air from the outside, and the other electric fan blows out hot air from the inside, the heat emission during stopping is accelerated, the plurality of air holes arranged on the mounting plate can quickly remove the heat on the matrix lamp plate, the contact area of the lamp plate and the cold air is increased, the heat dissipation efficiency is improved, the light uniformizing plate is arranged on the matrix lamp assembly, a plurality of screen dots for uniformly distributing light rays are arranged in the light uniformizing plate, the dark area in the LED lamp circuit main plate is supplemented, the light uniformization effect of the matrix lamp plate is improved, the thickness of the LED backlight plate is not increased, and the heat dissipation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a structural schematic diagram of the utility model;
[0013] Figure 2 is an explosion drawing of the utility model;
[0014] Figure 3 is an explosion drawing of the shell of the utility model;
[0015] Figure 4 is an explosion drawing of the mounting plate and the matrix lamp assembly of the utility model;
[0016] Figure 5 is a structural schematic diagram of the pressing cover of the utility model.
[0017] In the figure: 1, the shell; 11, installation cavity; 12, buffer cavity; 13, electric fan; 14, locking piece; 2, lamp control component; 3, mounting plate; 31, reserved hole; 32, groove; 33, air hole; 34, limiting groove; 4, gland; 41, limiting buckle; 42, connecting block; 43, pressing block; 5, matrix lamp assembly; 51, matrix lamp plate; 52, light uniformizing plate; 53, limiting strip; 54, opening; 55, protruding block; 56, light transmission hole; 57, pressing sheet; 6, light transmission plate. DETAILED DESCRIPTION
[0018] As Figures 1 to 5 shown in the embodiment, the utility model includes shell 1, lamp control component 2 that sets up in the shell 1, mounting plate 3 that sets up in the one side of shell 1, matrix lamp assembly 5 that sets up in the mounting plate 3 and with the gland 4 of shell 1 buckle connection, the shell 1 is formed with the installation cavity 11 of lamp control component 2 fixed connection, the downside of shell 1 is provided with two buffer cavities 12 for storing gas, every buffer cavity 12 is communicated with installation cavity 11, and every buffer cavity 12 is provided with electric fan 13 for accelerating gas flow in. Form the baffle between two buffer cavities 12 for storing gas, and every buffer cavity 12 is provided with installation channel for installing electric fan 13, for forming convection gas before installation, and the lamp control assembly is installed in the shell 1 by screw, and the shell 1 is provided with two supporting strips for supporting the lamp control assembly, and two buffer cavities 12 are used to form the convection structure in the installation cavity 11, and two electric fans 13 stop rotating under the condition of automobile driving, and the strong convection wind cooling effect removes the temperature in the installation cavity 11 when driving, to achieve the effect of cooling, when the automobile stops, two electric fans 13 start, one electric fan 13 draws in cold air from the outside, and the other electric fan 13 blows out hot air from the inside, to accelerate the heat dissipation when stopping, the structure of a plurality of air holes 33 arranged on the mounting plate 3 can quickly remove the heat on the matrix lamp plate 51, increase the contact area of the lamp plate and cold air, and improve the heat dissipation efficiency, and the matrix lamp assembly 5 is provided with a light uniformizing plate 52, a plurality of screen dots for uniformizing light are arranged in the light uniformizing plate 52, to supplement the dark area in the LED lamp circuit mainboard, thereby improving the light uniformization effect of the matrix lamp plate 51, thereby avoiding increasing the thickness of the LED backlight plate, and improving the heat dissipation efficiency.
[0019] In the embodiment, the upper end of the mounting cavity 11 is provided with two locking members 14, the mounting plate 3 is provided with two reserved holes 31 corresponding to the locking members 14, the middle part of the mounting plate 3 is formed with a recess 32 for placing the matrix lamp assembly 5, a plurality of air holes 33 are arranged in the recess 32, and limiting grooves 34 are formed on the two sides of the mounting plate 3. The locking member 14 and the reserved hole 31 are fixedly connected through screws, the air holes 33 are used for increasing the contact area of the matrix lamp plate 51 and cold air, the limiting grooves 34 are used for quickly installing and fixing the matrix lamp plate 51 and the light homogenizing plate 52, the installation steps are simplified, and the daily maintenance efficiency is improved.
[0020] In the embodiment, the matrix lamp assembly 5 comprises a matrix lamp plate 51 and a light homogenizing plate 52, the matrix lamp plate 51 is arranged in the recess 32, limiting strips 53 are formed on the two sides of the matrix lamp plate 51 and are limitedly matched with the limiting grooves 34, the light homogenizing plate 52 is closely attached to the matrix lamp plate 51, a plurality of openings 54 are formed in the matrix lamp plate 51, and protrusions 55 corresponding to the openings 54 are formed in the light homogenizing plate 52. A plurality of lamp grooves are arranged on the matrix lamp plate 51, an LED lamp bead for providing a light source is arranged in each lamp groove, and the light homogenizing plate 52 covers the matrix lamp plate 51 to compensate for dark areas formed in the matrix lamp plate 51.
[0021] In the embodiment, the light homogenizing plate 52 is formed with a plurality of light transmission holes 56 through which light rays directly pass, and pressing pieces 57 matched with the limiting grooves 34 are formed on the two sides of the light homogenizing plate 52. A light guide groove is arranged in the light homogenizing plate 52 and is used for uniformly distributing light rays. When light rays enter, the light guide groove can absorb the light source of the LED lamp bead to compensate for dark areas in the matrix lamp plate 51, so that the light homogenization effect of the matrix lamp plate 51 is improved, and the thickness of the matrix lamp plate 51 is avoided from being increased.
[0022] In the embodiment, the two sides of the mounting plate 3 are provided with clamping grooves 35 buckled with the compression cover 4.
[0023] In the embodiment, the middle part of the compression cover 4 is provided with a light transmission plate 641 through which light rays pass, the two ends of the compression cover 4 are provided with limiting buckles 41 buckled with the clamping grooves 35, the upper end of the compression cover 4 is formed with a connecting block 42 guided and matched with the mounting plate 3, the bottom of the compression cover 4 is formed with a pressing block 43 tightly matched with the matrix lamp assembly 5, the light transmission plate 641 is used for emitting the light uniformly distributed by the light homogenizing plate 52, the limiting buckles 41 on the two sides are used for quickly clamping and limiting the compression cover 4, and the bottom of the limiting buckle 41 is formed with an inclined groove, so that the stability of locking is improved.
[0024] The working principle of the utility model:
[0025] In the case of automobile driving, two electric fans 13 stop rotating, and the strong convection wind cooling effect during driving carries away the temperature in the installation cavity 11, achieving the effect of cooling;
[0026] When the automobile stops, two electric fans 13 start, one electric fan 13 draws in cold air from the outside, and the other electric fan 13 blows out hot air from the inside, accelerating the heat dissipation during parking.
[0027] Although the embodiments of the utility model are described in actual schemes, but does not constitute the limitation to the meaning of the utility model, for the person skilled in the art, according to the modification of its implementation scheme and the combination with other schemes are obvious.
Claims
1. A matrix LED headlamp characterized by: The utility model provides a kind of matrix lamp assembly, including shell (1), the lamp control component (2) being arranged in the shell (1), the mounting plate (3) being arranged in the shell (1) side, the matrix lamp assembly (5) being arranged in the mounting plate (3) and the gland (4) being buckled with the shell (1), the mounting cavity (11) for the lamp control component (2) fixed connection is formed in the shell (1), the lower side of the shell (1) is provided with two for storing gas buffer cavity (12), each buffer cavity (12) is communicated with the mounting cavity (11), each buffer cavity (12) is provided with electric fan (13) for accelerating gas flow.
2. A matrix LED headlamp according to claim 1, characterized in that: The upper end of the mounting cavity (11) is provided with two locking pieces (14), the mounting plate (3) is provided with two reserved holes (31) corresponding to the corresponding locking piece (14), the middle part of the mounting plate (3) is formed with a recess (32) for placing the matrix lamp assembly (5), a plurality of air holes (33) are arranged in the recess (32), and the two sides of the mounting plate (3) are further formed with limiting grooves (34).
3. A matrix LED headlamp according to claim 2, characterized in that: The matrix lamp assembly (5) includes a matrix lamp plate (51) and a uniform light plate (52), the matrix lamp plate (51) is arranged in the recess (32), the two sides of the matrix lamp plate (51) are formed with limiting strips (53) limiting cooperation with the limiting grooves (34), the uniform light plate (52) is closely attached to the matrix lamp plate (51), the matrix lamp plate (51) is formed with a plurality of openings (54), and the uniform light plate (52) is formed with protrusions (55) corresponding to the corresponding openings (54) guiding cooperation.
4. A matrix LED headlamp according to claim 3, characterized in that: The uniform light plate (52) is formed with a plurality of light-transmitting holes (56) for light to directly pass through, and the two sides of the uniform light plate (52) are formed with pressing tablets (57) cooperating with the limiting grooves (34).
5. A matrix LED headlamp according to claim 1, characterized in that: The two sides of the mounting plate (3) are provided with clamping grooves (35) buckled with the gland (4).
6. A matrix LED headlamp according to claim 5, characterized in that: The middle part of the gland (4) is provided with a light-transmitting plate (6) for light to pass through, the two ends of the gland (4) are provided with limiting buckles (41) buckled with the clamping grooves (35), the upper end of the gland (4) is formed with a connecting block (42) guiding cooperation with the mounting plate (3), and the bottom of the gland (4) is formed with a pressing block (43) tightly cooperating with the matrix lamp assembly (5).