LED double-light module with self-adaptive function
Technical Field
The invention belongs to the technical field of automobile lamps, and particularly relates to an LED double-light module with a self-adaptive function.
Background
With the development of car lamp technology, car headlamps are shining more and more, and more far away, and the glare phenomenon is more obvious with the car headlamps, and the far beam causes glare to drivers of oncoming cars, and is also one of main reasons for causing traffic accidents at night. In recent years, matrix type LED double-light technology is rapidly developed, and matrix type LED double-light automobile lamp is one of the directions of automobile lamp future development. The matrix type LED double-light headlamp is formed by arranging a plurality of LEDs in an array mode, under the cooperation of a front camera, the brightness change of each LED is automatically controlled by a system, a dark area is formed in a specific area, and the influence of high beam on other vehicles and pedestrians on a road is avoided.
At present, matrix type LED double-light technology is not mature, most of matrix type LED double-light headlamps are complex in structure, poor in light emergent uniformity and low in emergent efficiency. As disclosed in the prior patent CN209415340U, an LED dual-light module is disclosed, in which the upper portion of the front end of the radiator is fixed by a second LED circuit board, the third inner lampshade and the first LED circuit board are fixed at the lower portion of the front end of the radiator, the second inner lampshade and the first inner lampshade are assembled into a whole and then are positioned and mounted with the third inner lampshade and the second fixing sheet, the convex lens is fixed at the front end of the lens bracket by the inner clamping leg of the lens bracket, the lens bracket is positioned and mounted at the front end of the radiator, the front portion of the first inner lampshade is a smooth concave curved surface, the rear portion of the first inner lampshade is a smooth convex curved surface, the upper curved surface of the first inner lampshade is partially aluminized, the front portion of the second inner lampshade is a smooth concave curved surface, the rear portion of the second inner lampshade is a plurality of parallel strip-shaped light guide columns, the front portion of the third inner lampshade is provided with a plurality of luminous surfaces adjacent to each other side by side, the luminous surfaces are arranged in a single row or a plurality of rows, the second LED circuit board, the second inner lampshade, the first inner lampshade, the convex lens and the convex lens form a convex optical system, and the first inner lampshade and the convex optical system are formed by the first inner lampshade and the first inner lampshade, and the second inner optical system. The high beam ADB optical system mainly receives light rays emitted by the LED light source through the third inner lampshade, the light rays are collimated and then are incident into the first inner lampshade to be shaped into a cut-off line of a high beam part, energy loss exists when the light rays pass through all the optical surfaces from the third inner lampshade to the first inner lampshade, the energy utilization rate is greatly reduced, and in addition, the high beam ADB optical system comprises a plurality of inner lampshades, so that the light rays are poor in light emitting uniformity, complex in structure, low in assembly precision and high in processing cost.
Disclosure of Invention
The invention provides an LED double-light module with a self-adaptive function, which aims to solve the problems of complex structure, poor light emergent uniformity and low emergent efficiency of a matrix LED double-light headlamp in the prior art.
The LED double-light module with the self-adaptive function comprises a convex lens, an inner lampshade mechanism, an LED circuit board mechanism and a radiator, wherein the convex lens, the inner lampshade mechanism, the LED circuit board mechanism and the radiator are sequentially arranged from front to back, the inner lampshade mechanism comprises a first inner lampshade, a second inner lampshade and a lampshade bracket, the first inner lampshade and the lampshade bracket are formed by insert molding, the second inner lampshade is assembled with the lampshade bracket into a whole through a first fixing piece, the first inner lampshade is positioned below the second inner lampshade, the lampshade bracket is fixedly arranged on the radiator, the LED circuit board mechanism comprises a first LED circuit board and a second LED circuit board, the first LED circuit board is fixedly arranged at the lower part of the front end of the radiator, the second LED circuit board is fixedly arranged at the upper part of the front end of the radiator, the convex lens is fixedly arranged at the front end of the lens bracket, the rear end of the lens bracket is fixedly connected with the radiator, the inner lampshade mechanism and the LED circuit board mechanism are respectively arranged below the second inner lampshade, the first LED circuit board and the second LED circuit board are arranged at the front end of the radiator, the front end of the LED circuit board is a plurality of concave-shaped optical guide posts, the front-side light-down light-reflecting posts are arranged in parallel, and the front-side light-reflecting posts are formed by the front-reflecting surfaces of the concave-shaped LED circuit boards, and the front-reflecting light-reflecting posts are arranged in front, and the front-reflecting light-reflecting posts are formed by the front light-reflecting light, and the front-reflecting light, and the front light-reflecting light is formed.
Preferably, the upper surface of the first inner lampshade is additionally provided with dermatoglyph treatment. After the first inner lampshade and the second inner lampshade are combined together, the dermatoglyph structure plays a role in partition, and light channeling is effectively prevented when the first inner lampshade and the second inner lampshade are combined together.
Preferably, the first inner lampshade and the second inner lampshade are made of silica gel. The silica gel material is convenient to process and manufacture, meets the optical performance requirement and has good heat resistance.
Preferably, the plurality of cylindrical light guide columns of the second inner globe are separated from each other from the middle to the two sides, and the lower surface type realizes a low beam cutoff shape. The uniformity of light emergent light is good.
Preferably, the first LED circuit board is provided with a first LED light source and a first connector, the second LED circuit board is provided with a second LED light source and a second connector, and the first connector and the second connector are used for switching on a power supply.
Preferably, the upper part and the rear end of the lampshade bracket are respectively provided with a locating pin, the locating pin at the upper part is used for the pre-positioning of the second inner lampshade and the lampshade bracket, and the locating pin at the rear end is used for the pre-positioning of the lampshade bracket and the first LED circuit board. The setting of locating pin improves the assembly precision of second interior lamp shade, lamp shade support and first LED circuit board.
Further, the second LED circuit board is fixedly arranged at the upper part of the front end of the radiator through a second fixing piece, a plurality of hole sites are formed in the second fixing piece and used for positioning a cylindrical light guide column of the second inner lampshade, and the first fixing piece and the second fixing piece are made of metal. The assembly structure of the second inner lampshade and the second LED circuit board is simple and firm, and the positioning accuracy between the second inner lampshade and the second LED circuit board is improved.
Further, the rear end of the radiator is provided with a plurality of radiating fins, gaps are arranged between the adjacent radiating fins, and the front end of the radiator is provided with a plurality of through holes. The radiator has reasonable and compact structure and good radiating function.
Further, a heat conducting grease layer is arranged between the first LED circuit board and the radiator and between the second LED circuit board and the radiator. And heat dissipation is achieved, so that the heat dissipation effect is improved.
Further, a fan is arranged at the rear end of the radiator. The fan is convenient for further radiating the LED double-light module, and the radiating effect is improved.
The beneficial effects are that:
the LED double-light module with the self-adaptive function skillfully integrates the low beam and the high beam ADB, can realize ideal double-light type, and can realize the high beam ADB optical system by only completing collimation and shaping of the light beam through the first inner lampshade, so that energy loss is caused when the light rays pass through the optical surface from one medium to the other medium, and the light rays emitted from the LED light source in the prior art pass through the four optical surfaces, but the energy utilization rate is greatly improved by only passing through the optical surfaces twice;
Compared with the prior art, the LED double-light module with the self-adaptive function has the advantages that the setting of an inner lampshade is reduced, the light efficiency is greatly improved, the assembly is reduced, the production process is simplified, meanwhile, the deviation is reduced, and the production consistency is improved;
the LED double-light module with the self-adaptive function meets the requirement of the high beam ADB function, can realize a plurality of subareas, avoids dazzling pedestrians or subtended drivers, and effectively reduces night traffic accidents.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of an LED dual-light module with adaptive function according to the present invention;
FIG. 2 is an exploded view of the LED dual light module with adaptive function of the present invention;
FIG. 3 is a schematic top view of a first inner lampshade of the LED dual-light module with self-adaptation function;
FIG. 4 is a schematic top view of a second inner lampshade with an adaptive LED dual-light module;
FIG. 5 is a low beam schematic diagram of an LED dual light module with adaptive functionality of the present invention;
FIG. 6 is a schematic view of the far-reaching beam of the LED dual-light module with the self-adaptation function;
In the figure, 1, a convex lens, 2, a lens support, 2-1, a clamping pin, 3, a lampshade support, 4, a first inner lampshade, 5, a first fixing piece, 6, a second inner lampshade, 7, a first LED circuit board, 7-1, a first connector, 7-2, a first LED light source, 8, a second fixing piece, 9, a second LED circuit board, 9-1, a second connector, 9-2, a second LED light source, 10, a radiator, 11 and a fan.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1-6, the LED dual-light module with the self-adaptation function comprises a convex lens 1, an inner lampshade mechanism, an LED circuit board mechanism and a radiator 10 which are sequentially arranged from front to back, wherein the inner lampshade mechanism comprises a first inner lampshade 4, a second inner lampshade 6 and a lampshade bracket 3, the lampshade bracket 3 is formed by injection molding, the first inner lampshade 4 and the lampshade bracket 3 are integrally formed by insert molding, the second inner lampshade 6 is pre-positioned by a positioning pin at the upper part of the lampshade bracket 3 and is integrally assembled with the lampshade bracket 3 by a first fixing piece 5, the first fixing piece 5 is made of metal, the top of the first fixing piece 5 is a plane with ribs, the side surface of the first fixing piece comprises a hole site for positioning and fixing the lampshade bracket 3, the first inner lampshade 4 is positioned below the second inner lampshade 6, and the lampshade bracket 3 is fixedly arranged on the radiator 10;
The LED circuit board mechanism comprises a first LED circuit board 7 and a second LED circuit board 9, wherein the first LED circuit board 7 and the second LED circuit board 9 are copper substrates, a first LED light source 7-2 and a first connector 7-1 are arranged on the first LED circuit board 7, a second LED light source 9-2 and a second connector 9-1 are arranged on the second LED circuit board 9, the first connector 7-1 and the second connector 9-1 are both used for connecting a power supply, the positioning pins at the rear end of the lamp shade bracket 3 are pre-positioned with the first LED circuit board 7, the lamp shade bracket 3 and the first LED circuit board 7 are fixedly arranged at the lower part of the front end of the radiator 10 through a screw structure, and the second LED circuit board 9 is fixedly arranged at the upper part of the front end of the radiator 10 through a second fixing piece 8 and the screw structure, and the material of the second fixing piece 8 is selected from metals;
The LED double-light module further comprises a lens support 2, wherein the lens support 2 is formed by injection molding, a convex lens 1 is a glass lens or a plastic lens, the convex lens 1 is fixedly arranged at the front end of the lens support 2 through a clamping pin 2-1 of the lens support 2, a positioning pin for preassembling a radiator 10 is arranged on a flanging at the rear end of the lens support 2, the lens support 2 is fixedly arranged at the front end of the radiator 10 through a screw structure, and the inner lampshade mechanism and the LED circuit board mechanism are both positioned in the lens support 2;
The second LED circuit board 9, the second inner lampshade 6 and the convex lens 1 form a low beam optical system, as shown in fig. 5, the first LED circuit board 7, the first inner lampshade 4 and the convex lens 1 form a high beam ADB optical system, as shown in fig. 6, as shown in fig. 3 and 6, the front end luminous surface of the first inner lampshade 4 is a smooth concave curved surface, the rear end of the first inner lampshade 4 is a plurality of parallel strip-shaped light guide columns which diverge, collimation and shaping of light beams are completed through the side surfaces of the strip-shaped light guide columns of the first inner lampshade 4, light outgoing uniformity is good, as shown in fig. 2, 4 and 5, the front end luminous surface of the second inner lampshade 6 is a smooth concave curved surface, the rear end of the second inner lampshade 6 is a plurality of parallel cylindrical light guide columns, a plurality of hole sites are formed in the second fixing piece 8 and are used for positioning the cylindrical light guide columns of the second inner lampshade 6, the plurality of middle light guide columns of the second inner lampshade 6 are in the shape of the split-shaped light guide columns, and the cut-off uniformity of the light outgoing from the middle to the two sides is good.
The material of lamp shade 4 in first and second is interior lamp shade 6 all selects the silica gel, the upper surface of lamp shade 4 increases the dermatoglyph and handles in the first, and after lamp shade 6 was in first and second was incorporated together, the dermatoglyph structure played the partition effect, effectively prevented that lamp shade 4 in first and second from being incorporated together from taking place to scurry light.
In order to make the LED dual-light module compact in structure and good in heat dissipation effect, the rear end of the radiator 10 is provided with a plurality of heat dissipation fins, gaps are arranged between the adjacent heat dissipation fins, the front end of the radiator 10 is provided with a plurality of through holes, heat conduction grease layers are arranged between the first LED circuit board 7 and the radiator 10 and between the second LED circuit board 9 and the radiator 10, and a fan 11 is arranged at the rear end of the radiator 10 through a screw structure.
The specific installation process is as follows:
Firstly, the upper part and the lower part of the front end of a radiator 10 are coated with heat conduction grease, then a second LED circuit board 9 is preassembled through a locating pin at the upper part of the front end of the radiator 10, then a second fixing piece 8 is preassembled through the same locating pin at the upper part of the front end of the radiator 10, pressed on the second LED circuit board 9 and fixed at the upper part of the front end of the radiator 10 through a screw structure, then the first LED circuit board 7 is preassembled through a locating pin at the lower part of the front end of the radiator 10, the first inner lampshade 4 and the lampshade bracket 3 are integrally formed through an insert, then the second inner lampshade 6 is preassembled through a locating pin at the upper part of the lampshade bracket 3, then the first fixing piece 5 is located through a locating pin at the upper part of the lampshade bracket 3 and fixed together through hot riveting, then the lampshade bracket 3 is located with the first LED circuit board 7 through a locating pin at the rear end of the lampshade bracket, and the first LED circuit board 7 is fixed at the lower part of the front end of the radiator 10 through a screw structure, then the fan 11 is fixed at the rear end of the radiator 10 through the screw structure, then the convex lens 1 and the lens 2 are preassembled through the locating pin of the clamp bracket 2 and the lens bracket 2, and the lens 2 is fixed at the front end of the radiator bracket 2 through the pre-fixing pin 2, and the lens assembly is completed.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.