Automobile high-mount stop lamp with COB light source

Abstract

The utility model discloses an automobile high-mount stop lamp with a COB light source, which belongs to the technical field of automobile parts and comprises a bottom shell, a COB light source plate, an optical lens and a mask, a mounting cavity is formed between the bottom shell and the mask, and the COB light source plate and the optical lens are arranged in the mounting cavity; a plurality of columns of lamp bead sets are distributed on the COB light source plate, the optical lens comprises a plurality of light guide columns, the light guide columns and the lamp bead sets are in one-to-one correspondence, a plurality of parallel protruding cross grains are arranged on the sides, close to the mask, of the light guide columns, and lamp bead embedding parts are arranged on the other sides, close to the bottom shell, of the light guide columns. The lamp bead embedding parts are in one-to-one correspondence with lamp beads in the lamp bead group, the COB light source plate is connected with the optical lens, and the lamp beads in the lamp bead group are arranged in the corresponding lamp bead embedding parts. The automobile high-mount stop lamp with the COB light source solves the problem that an existing stop lamp is poor in lamp effect.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an automobile high-mounted brake lamp with a COB light source. Background Art

[0002] A COB (chip on board) is a product that directly packages multiple LED chips onto a metal-based printed circuit board. High-mounted brake lights are typically installed on the upper rear of a vehicle to better alert vehicles behind that the preceding vehicle is braking, thereby preventing rear-end collisions. However, because COB light sources are composed of multiple LED chips, while LEDs are point sources with a narrow beam angle, the LED light seen directly through the mask appears grainy, resulting in poor brake light efficiency. Utility Model Content

[0003] In order to overcome the defects of the prior art, the utility model provides a car high-mount brake light with a COB light source to solve the above-mentioned problems.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a COB light source automobile high-mounted brake light, comprising a bottom shell, a COB light source board, an optical lens and a mask, wherein a mounting cavity is formed between the bottom shell and the mask, and the COB light source board and the optical lens are arranged in the mounting cavity;

[0005] The COB light source board is distributed with multiple columns of lamp bead groups, the optical lens includes multiple light guide columns, the light guide columns correspond one-to-one to the lamp bead groups, the side of the light guide column close to the mask is provided with multiple parallel raised horizontal stripes, the other side of the light guide column close to the bottom shell is provided with a lamp bead embedding part, the lamp bead embedding part corresponds one-to-one to the lamp beads in the lamp bead group, the COB light source board is connected to the optical lens, and the lamp beads in the lamp bead group are arranged in the corresponding lamp bead embedding parts.

[0006] It is worth noting that the inner wall of the bottom shell is provided with a ridge, and the COB light source board is provided with a groove that matches the ridge. After the COB light source board is arranged on the bottom shell, the groove is clamped on the ridge.

[0007] Preferably, it also includes a light-shielding hood, which is arranged in the mounting cavity and is located between the face mask and the optical lens; the light-shielding hood includes a cover body and light-transmitting holes distributed on the cover body, the light-transmitting holes correspond one-to-one to the light-guiding columns, and the side of the light-guiding column provided with the raised horizontal stripes passes through the light-transmitting holes and extends toward the face mask.

[0008] Optionally, the mask is provided with a light-transmitting portion, and the side of the light-guiding column provided with the raised horizontal stripes passes through the light-transmitting hole and faces the light-transmitting portion.

[0009] Specifically, a plurality of the light guide columns form a light guide assembly, and the light shield is connected to the plurality of light guide assemblies at the same time;

[0010] The cover body is provided with a limiting piece, and the limiting piece is located between two adjacent light guide components. The wall surface of the limiting piece is provided with an anti-slip fin, and the anti-slip fin is in contact with the light guide component.

[0011] It is worth noting that a waterproof sealing strip is provided at the connection between the mask and the bottom shell.

[0012] The beneficial effect of this utility model is that in the COB light source automotive high-mounted brake light, the point light emitted by the lamp beads in the lamp bead assembly passes through the lamp bead embedding portion and passes through the raised horizontal stripes on one side of the light guide column. Due to the multiple parallel raised horizontal stripes, the point light emitted by the lamp beads is scattered, thereby increasing the luminous angle. Finally, after being diffused through the mask, the brake light's lighting effect is improved. Because each lamp bead corresponds to a lamp bead embedding portion, the lamp bead embedding portion not only serves as a limiter to prevent misalignment between the COB light source board and the lamp bead, but also serves to guide the point light source of the lamp bead to the position of the raised horizontal stripes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded view of a car high-mount brake light with a COB light source in one embodiment of the present invention;

[0014] Figure 2 This is a schematic structural diagram of the bottom shell in one embodiment of the present utility model;

[0015] Figure 3 This is a schematic structural diagram of a COB light source board in one embodiment of the present invention;

[0016] Figure 4 This is a structural diagram of a light guide assembly in one embodiment of the present invention;

[0017] Figure 5 This is a structural diagram of a light guide assembly in another embodiment of the present invention;

[0018] Figure 6 This is a schematic structural diagram of a light shield in one embodiment of the present utility model;

[0019] Figure 7 This is a schematic structural diagram of a mask in one embodiment of the present invention;

[0020] In the figure: 1 bottom shell; 11 installation cavity; 12 ridge; 2 COB light source board; 21 lamp bead group; 22 groove; 3 optical lens; 31 light guide column; 311 raised horizontal stripe; 312 lamp bead embedding part; 32 light guide assembly; 4 light shield; 41 cover body; 42 light transmission hole; 43 limiter; 431 anti-slip fin; 5 mask; 51 light transmission part; 52 waterproof sealing strip. DETAILED DESCRIPTION

[0021] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0022] like Figure 1-7 As shown, a COB light source automobile high-mounted brake light includes a bottom shell 1, a COB light source board 2, an optical lens 3 and a mask 5. A mounting cavity 11 is formed between the bottom shell 1 and the mask 5, and the COB light source board 2 and the optical lens 3 are arranged in the mounting cavity 11;

[0023] like Figure 1 、 3 As shown in Figures 4 and 5, the COB light source board 2 is distributed with multiple columns of lamp bead groups 21, and the optical lens 3 includes multiple light guide columns 31, which correspond one-to-one to the lamp bead groups 21. The side of the light guide column 31 close to the mask 5 is provided with multiple parallel raised horizontal stripes 311, and the other side of the light guide column 31 close to the bottom shell 1 is provided with a lamp bead embedding portion 312, which corresponds one-to-one to the lamp beads in the lamp bead group 21. The COB light source board 2 is connected to the optical lens 3, and the lamp beads in the lamp bead group 21 are arranged in the corresponding lamp bead embedding portion 312.

[0024] In the COB-based automotive high-mounted brake light, the point light emitted by the beads in the bead assembly 21 passes through the bead embedding portion 312 and the raised horizontal stripe 311 on one side of the light guide column 31. The multiple parallel raised horizontal stripes 311 scatter the point light emitted by the beads, thereby increasing the luminous angle. Finally, after being diffused through the mask 5, the brake light's lighting efficiency is enhanced. Since each bead corresponds to a bead embedding portion 312, the bead embedding portion 312 not only serves as a position limiter to prevent misalignment between the COB light source board 2 and the bead, but also serves to guide the point light from the bead to the position of the raised horizontal stripe 311.

[0025] Preferably, Figure 2 and 3As shown, the inner wall of the bottom shell 1 is provided with a ridge 12, and the COB light source board 2 is provided with a groove 22 that cooperates with the ridge 12. After the COB light source board 2 is installed in the bottom shell 1, the groove 22 is engaged with the ridge 12. By the ridge 12 provided on the bottom shell 1 and the groove 22 of the COB light source board 2, after the COB light source board 2 is installed in the installation cavity 11, it can play a role in limiting the position, so that the COB light source board 2 will not move relative to the base.

[0026] Specifically, if Figure 6 As shown, the optical device further includes a light shield 4, which is disposed within the mounting cavity 11 and is located between the face mask 5 and the optical lens 3. The light shield 4 includes a cover body 41 and light-transmitting holes 42 distributed on the cover body 41. The light-transmitting holes 42 correspond one-to-one with the light guide columns 31. The side of the light guide column 31 provided with the raised horizontal stripes 311 passes through the light-transmitting holes 42 and extends toward the face mask 5. The cover body 41 is made of an opaque material. In this way, the light emitted by the LED can only enter the face mask 5 through the raised horizontal stripes 311 and the light-transmitting holes 42 of the light guide column 31, thereby playing a guiding role.

[0027] It is worth noting that if Figure 7 As shown, the face shield 5 is provided with a light-transmitting portion 51, and the side of the light guide column 31 provided with the raised horizontal stripes 311 passes through the light-transmitting hole 42 and faces the light-transmitting portion 51. In this embodiment, the face shield 5 is not light-transmitting except for the light-transmitting portion 51. After the light emitted by the LED passes through the raised horizontal stripes 311 of the light guide column 31 and the light-transmitting hole 42, the light is guided and focused on the light-transmitting portion 51, thereby preventing the light from being too diffuse and failing to provide a warning effect.

[0028] Preferably, Figure 1 、 4 As shown in Figures 5 and 6, multiple light guide columns 31 form a light guide assembly 32, and the light shield 4 is connected to multiple light guide assemblies 32 at the same time; the cover body 41 is provided with a limiter 43, and the limiter 43 is located between two adjacent light guide assemblies 32. The wall surface of the limiter 43 is provided with an anti-slip fin 431, and the anti-slip fin 431 contacts the light guide assembly 32. By providing the limiter 43 and providing the anti-slip fin 431 on the limiter 43, the light guide assembly 32 can be clamped to the cover body 41, thereby preventing the light guide assembly 32 from shifting with the cover body 41. In this way, the relative positions of the COB light source board 2, the optical lens 3 and the light shield 4 will not change. Finally, by clamping the light shield 4 to the mask 5, clamping the COB light source board 2 to the bottom shell 1, and connecting the bottom shell 1 and the mask 5, the COB light source board 2, the optical lens 3 and the light shield 4 can be fixed in the installation cavity 11.

[0029] Optional, such as Figure 7 As shown, a waterproof sealing strip 52 is provided at the connection between the mask 5 and the bottom shell 1 to prevent rainwater from entering the installation cavity 11.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A COB light source automobile high-mounted brake light, characterized by: It includes a bottom shell, a COB light source board, an optical lens and a mask. A mounting cavity is formed between the bottom shell and the mask, and the COB light source board and the optical lens are arranged in the mounting cavity. The COB light source board is distributed with multiple columns of lamp bead groups, the optical lens includes multiple light guide columns, the light guide columns correspond one-to-one to the lamp bead groups, the side of the light guide column close to the mask is provided with multiple parallel raised horizontal stripes, the other side of the light guide column close to the bottom shell is provided with a lamp bead embedding part, the lamp bead embedding part corresponds one-to-one to the lamp beads in the lamp bead group, the COB light source board is connected to the optical lens, and the lamp beads in the lamp bead group are arranged in the corresponding lamp bead embedding parts.

2. The automotive high-mounted brake light with a COB light source according to claim 1, characterized in that: The inner wall of the bottom shell is provided with a ridge, and the COB light source board is provided with a groove matched with the ridge. After the COB light source board is arranged on the bottom shell, the groove is clamped on the ridge.

3. The automotive high-mounted brake light with a COB light source according to claim 1, characterized in that: It also includes a light-shielding hood, which is arranged in the installation cavity and is located between the face mask and the optical lens; the light-shielding hood includes a cover body and light-transmitting holes distributed on the cover body, the light-transmitting holes correspond one-to-one to the light-guiding columns, and the side of the light-guiding column provided with the raised horizontal stripes passes through the light-transmitting holes and extends toward the face mask.

4. The automotive high-mounted brake lamp with a COB light source according to claim 3, characterized in that: The face mask is provided with a light-transmitting portion, and the side of the light-guiding column provided with the raised horizontal stripes passes through the light-transmitting hole and then faces the light-transmitting portion.

5. The automotive high-mounted brake light with a COB light source according to claim 3, characterized in that: A plurality of the light guide columns form a light guide assembly, and the light shield is connected to the plurality of light guide assemblies at the same time; The cover body is provided with a limiting piece, and the limiting piece is located between two adjacent light guide components. The wall surface of the limiting piece is provided with an anti-slip fin, and the anti-slip fin is in contact with the light guide component.

6. The automotive high-mounted brake lamp with a COB light source according to claim 1, characterized in that: A waterproof sealing strip is provided at the connection between the mask and the bottom shell.

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