A single-row LED high beam module

Abstract

A single row LED high beam module, including protection cover, radiator, LED circuit board and condenser, the radiator is provided with mounting groove, and is integrally provided with connecting groove around the mounting groove, the connecting groove is used for installing the protection cover, so that the protection cover and radiator seal connection forms cavity, the mounting groove is used for installing the LED circuit board, so that the LED circuit board is located in the cavity, the condenser is arranged in the cavity and is located in front of the LED circuit board, the condenser is used for providing light beam with LED circuit board, and the light beam is shot out through the protection cover and forms high beam light type, the protection cover includes inner cover and outer cover, the inner cover is arranged on the inner side of the outer cover, and the inner cover is used for shielding the side surface around the outer cover, the utility model discloses simple structure, convenient installation can effectively solve the problems existing in prior art.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a single-row LED high beam module. Background Technology

[0002] With the advancement of industrialization, automobiles have become an indispensable means of transportation in people's lives. The requirements and performance of car lights have also become increasingly refined. Nowadays, in order to improve the lighting effect and illumination effect of car lights, people have higher and higher requirements for the design of car lights.

[0003] LEDs possess advantages such as energy saving, environmental friendliness, high luminous efficiency, good shock resistance, fast lighting speed, low light decay, long lifespan, and small size, thus well meeting the requirements of the automotive industry. In recent years, with the development of science and technology, their application scope has become increasingly wide, expanding from signal indicator lights to the lighting field, and LED automotive headlights have received widespread attention from the industry.

[0004] With the application of LED automotive headlights, customers have increasingly higher requirements for LED high beam modules. Chinese patent CN213577285U discloses a single-row LED high beam module, which includes a convex lens, a lens bracket, a light shield, an inner lamp cover, an LED circuit board, and a heat sink. The inner lamp cover and the LED circuit board are fixed to the front end of the heat sink with screws. The convex lens is fixed to the front end of the lens bracket by clips inside the lens bracket. The light shield is fixed to the heat sink by positioning posts at the rear of the lens bracket. The inner lamp cover has a reflective structure. The inner lamp cover, the LED circuit board, and the convex lens constitute the light system. However, the high beam module with this structure has the following problems in use: 1. It is not waterproof, and the electrical components on it are easily damaged by moisture, affecting its service life; 2. The use of convex lenses results in a larger module size and higher cost; 3. Some of the light reflected from the inner lamp cover is emitted from the four sides of the convex lens, resulting in a large amount of stray light in the provided high beam pattern, which reduces the optical quality; 4. A sunshade needs to be installed on the lens bracket to prevent sunlight from focusing and burning the lens bracket, which increases production costs and is not conducive to lightweight development. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a single-row LED high beam module that effectively solves the problems existing in the prior art.

[0006] This utility model is achieved through the following technical solution:

[0007] A single-row LED high beam module includes a protective cover, a heat sink, an LED circuit board, and a concentrator. The heat sink has a mounting groove and integrally formed connecting grooves around the mounting groove. The connecting grooves are used to mount the protective cover, forming a cavity with the heat sink in a sealed connection. The mounting grooves are used to mount the LED circuit board, placing it within the cavity. The concentrator is located within the cavity, in front of the LED circuit board, and works with the LED circuit board to provide a light beam. The light beam is then emitted through the protective cover to form a high beam pattern. The protective cover includes an inner cover and an outer cover. The inner cover is located inside the outer cover and shields the sides of the outer cover.

[0008] Furthermore, according to the single-row LED high beam module of this utility model, the inner cover is a black non-transparent plastic part, the outer cover is a colorless transparent plastic part, and the inner cover is integrally formed on the inner side of the outer cover using a two-color injection molding process.

[0009] Furthermore, according to the single-row LED high beam module of this utility model, the outer cover is provided with positioning claws, which are used to support and position the module during the two-color mold injection process.

[0010] Furthermore, the single-row LED high beam module according to this utility model also includes a light shield, which is disposed in front of the condenser and is used to block the non-optical surfaces on the condenser.

[0011] Furthermore, in the single-row LED high beam module of this utility model, the light shield is made of cold plate and the surface is coated with matte black paint.

[0012] Furthermore, according to the single-row LED high beam module of this utility model, the inner cover is provided with a rubber band, which is used to insert into the connecting groove and is connected to the connecting groove by the glue injected into the connecting groove, thereby achieving a sealed connection between the protective cover and the heat sink; the protective cover is also provided with a connecting hole on the outside of the rubber band, and the heat sink is provided with a connecting post on the outside of the connecting groove. A screw is used to pass through the connecting hole and connect to the connecting post, thereby fixing the protective cover to the heat sink. At the same time, the light shield is pressed and fixed to the light concentrator by the step provided on the inside of the inner cover on the inside of the rubber band.

[0013] Furthermore, according to the single-row LED high beam module of this utility model, the focusing unit includes an optical section, which is composed of several focusing cups arranged in a straight line. The front end of each focusing cup is provided with a light-emitting surface, and the rear end of each focusing cup is provided with a light-incident surface. The LED circuit board is provided with several LED particles arranged in a straight line. Each LED particle corresponds to one light-incident surface. The light-emitting surface is composed of three optical surfaces connected together, namely a first optical surface, a second optical surface, and a third optical surface. The third optical surface is connected to the first optical surface through a second optical surface. The third optical surface and the first optical surface are structurally symmetrical and have a cylindrical shape. The second optical surface is composed of multiple longitudinal stripe patterns connected together. The light emitted by the LED particles enters the focusing cup through the light-incident surface and is then emitted from the light-emitting surface. The second optical surface is used to homogenize the emitted light, and the third optical surface and the first optical surface are used to adjust the angle of the emitted light, thereby increasing the width on both sides.

[0014] Furthermore, according to the single-row LED high beam module of this utility model, five LED particles are arranged on the LED circuit board, and the optical part is composed of five condenser cups connected together. The arch height of the first optical surface on the condenser cup located in the middle is less than the arch height of the first optical surface on the condenser cups closest to each other on both sides, which is less than the arch height of the first optical surface on the condenser cups furthest from each other on both sides.

[0015] Furthermore, according to the single-row LED high beam module of this utility model, the concentrator also includes a non-optical part, which is integrally disposed around the optical part. The non-optical part has a recessed platform at each of the four corners, and the recessed platform is provided with a mounting hole for fixing the concentrator in the mounting groove.

[0016] Furthermore, according to the single-row LED high beam module of this utility model, the heat sink is provided with a mounting plate, which is used to fix the single-row LED high beam module to the dimming plate or the vehicle body.

[0017] This utility model has a simple structure and is easy to install. It protects the internal electrical components with a protective cover, thereby improving their service life. It eliminates the need for a convex lens, avoiding sunlight focusing and reducing costs and size. The inner cover blocks the sides of the outer cover, preventing the internal structure from being seen from the sides, improving the appearance. At the same time, it prevents stray light from escaping from the sides of the outer cover, improving the optical quality of the high beam pattern. It can effectively solve the problems existing in the prior art. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention.

[0019] Figure 2 This is a front view of the present invention.

[0020] Figure 3 This is an exploded view of the structure of this utility model without the loading plate.

[0021] Figure 4 yes Figure 2 A schematic diagram of the cross-sectional structure of AA.

[0022] Figure 5 yes Figure 4 Enlarged view of the structure within the dashed box.

[0023] Figure 6 yes Figure 4 A cross-sectional view of the protective cover.

[0024] In the diagram: Protective cover 1, Inner cover 11, Adhesive rib 111, Step 112, Outer cover 12, Positioning claw 121, Connecting hole 13, Heat sink 2, Mounting slot 21, Connecting slot 22, Connecting post 23, Heat dissipation fin 24, Mounting hole post 25, Outlet hole 26, Outlet plug 27, LED circuit board 3, LED chip 31, Power-carrying wire 32, Concentrator 4, Optical part 41, Concentrator cup 411, Non-optical part 42, Recessed platform 421, Mounting hole 422, Light shield 5, Light emitting surface 6, First optical surface 61, Second optical surface 62, Vertical stripe pattern 621, Third optical surface 63, Light incident surface 7, First limiting mechanism 8, Limiting post 81, Limiting hole 82, Second limiting mechanism 9, Limiting insert 91, Limiting slot 92, Screw 10, Mounting piece 20. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-6As shown, a single-row LED high beam module includes a protective cover 1, a heat sink 2, an LED circuit board 3, a concentrator 4, and a light shield 5. The heat sink 2 has a mounting groove 21, and connecting grooves 22 are integrally formed around the mounting groove 21. The mounting groove 21 is used to mount the LED circuit board 3, and the connecting grooves 22 are used to mount the protective cover 1, forming a cavity with the protective cover 1 and the heat sink 2 in a sealed connection. The LED circuit board 3 is located within the cavity, and the concentrator 4 is located within the cavity and in front of the LED circuit board 3. The concentrator 4 works with the LED circuit board 3 to provide a beam of light, which is emitted through the protective cover 1 to form the high beam pattern. The light shield 5 is placed on the concentrator 4 to block the non-optical surfaces of the concentrator 4, thereby preventing stray lines from escaping from the non-optical surfaces of the concentrator 4 and improving the optical quality of the high beam pattern. The protective cover 1 protects the internal electrical components, extending their service life; it eliminates the need for a convex lens, preventing sunlight focusing, reducing costs, and decreasing size. Specifically, the protective cover 1 includes an inner cover 11 and an outer cover 12. The inner cover 11 is disposed inside the outer cover 12 and is used to shield the sides of the outer cover 12. By shielding the sides of the outer cover 12 with the inner cover 11, the internal structure is prevented from being seen from the sides, improving the appearance. At the same time, the inner cover 11 prevents stray light from escaping from the sides of the outer cover 12, further improving the optical quality of the high beam pattern. In this embodiment, the LED circuit board 3 is fixed in the mounting groove 21 with screws 10. In order to improve the installation accuracy of the LED circuit board 3, i.e., improve the quality of the high beam pattern, a first limiting mechanism 8 is provided between the LED circuit board 3 and the mounting groove 21. The first limiting mechanism 8 limits the LED circuit board 3 in the mounting groove 21, and then fixes it in the mounting groove 21 with screws 10. The condenser 4 is limited in the mounting groove 21 by the first limiting mechanism 8 and is located in front of the LED circuit board 3. Then, the condenser 4 is fixed in the mounting groove 21 with screws 10. The light-shielding plate 5 is limited on the condenser 4 by the second limiting mechanism 9 and is pressed and fixed on the condenser 4 by the protective cover 1. The first limiting mechanism 8 includes a limiting post 81 and a limiting hole 82, which cooperate to perform a limiting connection; the limiting post 81 is set in the mounting groove 21, and the limiting hole 82 is set on the LED circuit board 3 and the condenser 4. The second limiting mechanism 9 includes a limiting insert 91 and a limiting slot 92, which is inserted into the limiting slot 92 to complete the limiting connection; the limiting insert 91 is set on the light-shielding plate 5, and the limiting slot 92 is set on the condenser 4. The heat sink 2 is provided with a wire outlet hole 26, which is used for the power-carrying wire 32 on the LED circuit board 3 to connect to the external power supply, and the wire outlet hole 26 is sealed by a wire outlet plug 27.

[0027] Furthermore, the inner cover 11 is a black, non-transparent plastic part, and the outer cover 12 is a colorless, transparent plastic part. The inner cover 11 is integrally molded on the inside of the outer cover 12 using a two-color injection molding process, improving production efficiency. Specifically, the outer cover 12 is provided with positioning claws 121, which play a supporting and positioning role during the two-color injection molding process, thereby preventing inward shrinkage deformation of the protective cover 1 during production and further improving the pass rate of the protective cover 1. In this embodiment, the inner cover 11 is provided with adhesive ribs 111, which are used to insert into the connecting groove 22 and are connected to the connecting groove 22 by the glue injected into the connecting groove 22, thereby achieving a sealed connection between the protective cover 1 and the heat sink 2.

[0028] To improve the stability of the sealed connection between the protective cover 1 and the radiator 2, the protective cover 1 has a connecting hole 13 on the outside of the rubber band 111, and the radiator 2 has a connecting post 23 on the outside of the connecting groove 22. Screws 10 are used to pass through the connecting hole 13 and connect to the connecting post 23, thereby fixing the protective cover 1 to the radiator 2. Simultaneously, the light-shielding plate 5 is pressed and fixed to the concentrator 4 by a step 112 provided inside the rubber band 111 via the inner cover 11. Installation is convenient and quick; the protective cover 1 and the light-shielding plate 5 can be fixed in one installation, greatly improving production efficiency. In this embodiment, the protective cover 1 has connecting holes 13 at the four corners on the outside of the rubber band 111, and the radiator 2 has connecting posts 23 at the four corners on the outside of the connecting groove 22. Screws 10 are used to pass through the connecting hole 13 and connect to the connecting post 23, thereby fixing the protective cover 1 to the radiator 2.

[0029] Furthermore, the light shield 5 is made of cold-rolled steel plate and coated with matte black paint, which makes it more aesthetically pleasing. The matte black paint can also absorb some stray light, further improving the quality of the high beam pattern.

[0030] Furthermore, the concentrator 4 includes an optical section 41 and a non-optical section 42. The non-optical section 42 is integrally disposed around the optical section 41 and is used to fix the concentrator 4 in the mounting groove 21. Specifically, the non-optical section 42 has a recessed platform 421 at each of its four corners. The recessed platform 421 has a mounting hole 422, and the mounting groove 21 has a corresponding hole. Screws 10 are used to pass through the mounting holes 422 and connect to the holes, thereby fixing the concentrator 4 in the mounting groove 21. The recessed platform 421 also prevents the top of the screw 10 from contacting the light shield 5, so that the light shield 5 is completely attached to the non-optical surface of the non-optical section 42, improving the blocking effect and preventing abnormal noise caused by friction between the screw 10 and the light shield 5 during vehicle operation.

[0031] Furthermore, the optical section 41 is composed of several condenser cups 411 arranged in a straight line. The front end of each condenser cup 411 has a light-emitting surface 6, and the rear end has a light-incident surface 7. The LED circuit board 3 has several LED particles 31 arranged in a straight line; each LED particle 31 corresponds to one light-incident surface 7. The light-emitting surface 6 is composed of three optical surfaces connected together: a first optical surface 61, a second optical surface 62, and a third optical surface 63. The third optical surface 63 is connected to the first optical surface 61 via the second optical surface 62. Specifically, the third optical surface 63 and the first optical surface 61 are structurally symmetrical and cylindrical. The second optical surface 62 is composed of multiple vertical stripe patterns 621 connected together. The light emitted by the LED particles 31 enters the condenser cup 411 through the light-incident surface 7 and then exits through the light-exit surface 6. The second optical surface 62 is used to homogenize the emitted light, and the third optical surface 63 and the first optical surface 61 are used to adjust the angle of the emitted light, thereby increasing the width on both sides and further improving the quality of the high beam pattern. In this embodiment, five LED particles 31 are provided on the LED circuit board 3, and the optical part 41 is composed of five condenser cups 411 connected together. The arch height of the first optical surface 61 on the middle condenser cup 411 is smaller than the arch height of the first optical surface 61 on the two closest condenser cups 411 on both sides, which is also smaller than the arch height of the first optical surface 61 on the two farthest condenser cups 411 on both sides. The high beam pattern is provided by the middle condenser cup 411, and the width of the high beam pattern on both sides is gradually increased by the condenser cups 411 on both sides, further improving the quality of the high beam pattern.

[0032] To facilitate the installation of single-row LED high beam modules, a mounting plate 20 is provided on the heat sink 2. The single-row LED high beam module is fixed to the dimming plate or vehicle body via the mounting plate 20, making installation convenient and quick. Specifically, the heat sink 2 is an aluminum casting. To improve the heat dissipation speed and effect of the heat sink 2, multiple heat dissipation fins 24 are arranged on the heat sink 2. The heat dissipation fins 24 are used to increase the area of ​​the heat sink 2, thereby improving the heat dissipation speed and effect. In addition, to improve the heat dissipation effect, thermally conductive adhesive can also be applied between the LED circuit board 3 and the heat sink 2. The thermally conductive adhesive improves the heat dissipation effect, thereby increasing the lifespan of the LED circuit board 3. In this embodiment, to reduce the complexity of the heat sink 2 mold and improve the yield of the heat sink 2, the mounting plate 20 is an independent component, fixed to the heat sink 2 by screws 10. The heat sink 2 is mounted on the dimming plate or vehicle body via the mounting plate 20. Specifically, the radiator 2 is provided with mounting hole post 25 and limiting post 81. The limiting post 81 is used to cooperate with the limiting hole 82 on the mounting plate 20, so that the mounting plate 20 is limited on the radiator 2. Then, the screw 10 is used to pass through the through hole on the mounting plate 20 and connect to the mounting hole post 25, so that the mounting plate 20 is fixed on the radiator 2, making the installation convenient and quick.

Claims

1. A single-row LED high beam module, characterized in that, The device includes a protective cover, a heat sink, an LED circuit board, and a concentrator. The heat sink has a mounting groove, and connecting grooves are integrally formed around the mounting groove. The connecting grooves are used to mount the protective cover, forming a cavity with the heat sink in a sealed connection. The mounting grooves are used to mount the LED circuit board, placing it within the cavity. The concentrator is located within the cavity, in front of the LED circuit board, and works with the LED circuit board to provide a light beam. This beam is then emitted through the protective cover to form a high-beam pattern. The protective cover includes an inner cover and an outer cover. The inner cover is located inside the outer cover and shields the sides of the outer cover.

2. The single-row LED high beam module according to claim 1, characterized in that, The inner cover is a black, non-transparent plastic part, and the outer cover is a colorless, transparent plastic part. The inner cover is integrally formed on the inside of the outer cover using a two-color injection molding process.

3. The single-row LED high beam module according to claim 2, characterized in that, The outer cover is provided with positioning claws, which are used for support and positioning during the two-color mold injection process.

4. A single-row LED high beam module according to claim 1, characterized in that, It also includes a light-shielding plate, which is disposed in front of the condenser and is used to block the non-optical surfaces on the condenser.

5. The single-row LED high beam module according to claim 4, characterized in that, The light-shielding plate is made of cold-rolled steel and coated with matte black paint.

6. The single-row LED high beam module according to claim 4, characterized in that, The inner cover is provided with a rubber band, which is inserted into the connecting groove and connected to the connecting groove by glue injected into the connecting groove, thereby achieving a sealed connection between the protective cover and the heat sink. The protective cover is also provided with a connecting hole on the outside of the rubber band, and the heat sink is provided with a connecting post on the outside of the connecting groove. Screws are used to pass through the connecting hole and connect to the connecting post, thereby fixing the protective cover to the heat sink. At the same time, the light shield is pressed and fixed to the light concentrator by the step provided on the inside of the inner cover on the inside of the rubber band.

7. The single-row LED high beam module according to claim 1, characterized in that, The light concentrator includes an optical section, which is composed of several light-concentrating cups arranged in a straight line. Each light-concentrating cup has a light-emitting surface at its front end and a light-incident surface at its rear end. The LED circuit board has several LED particles arranged in a straight line. Each LED particle corresponds to one light-incident surface. The light-emitting surface is composed of three connected optical surfaces: a first optical surface, a second optical surface, and a third optical surface. The third optical surface is connected to the first optical surface via a second optical surface. The third optical surface and the first optical surface are structurally symmetrical and cylindrical. The second optical surface is composed of multiple vertical stripe patterns. The light emitted by the LED particles enters the light-concentrating cup through the light-incident surface and exits through the light-emitting surface. The second optical surface homogenizes the emitted light, and the third optical surface and the first optical surface adjust the angle of the emitted light, thereby increasing the width on both sides.

8. A single-row LED high beam module according to claim 7, characterized in that, The LED circuit board is provided with five LED particles, and the optical part is composed of five condenser cups connected together. The arch height of the first optical surface on the condenser cup located in the middle is less than the arch height of the first optical surface on the condenser cups that are closest to each other on both sides, and less than the arch height of the first optical surface on the condenser cups that are furthest from each other on both sides.

9. A single-row LED high beam module according to claim 7, characterized in that, The concentrator also includes a non-optical part, which is integrally disposed around the optical part. The non-optical part has a recessed platform at each of the four corners, and the recessed platform has a mounting hole for fixing the concentrator in the mounting groove.

10. The single-row LED high beam module according to claim 1, characterized in that, The radiator is provided with a mounting plate, which is used to fix the single row of LED high beam modules to the dimming plate or the vehicle body.

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