Vehicle tail lamp and vehicle

Abstract

The invention provides a vehicle tail lamp and a vehicle, and relates to the technical field of vehicle lamps. The vehicle tail lamp comprises a lamp shell and an outer lens, wherein the lamp shell and the outer lens form a closed lamp cavity; a wire harness assembly, a steering lamp L-shaped support, a PCB, an LED lamp bead, a thick-wall piece, an inner lens and a decoration frame are sequentially arranged in the closed lamp cavity in the direction from the lamp shell to the outer lens. LED lamp beads are arranged on the PCB to form penetrating lamps, the penetrating lamps comprise brake position lamps located at the two ends of the PCB, a middle position lamp located in the middle of the PCB and steering lamps located at the two ends of the PCB, and the brake position lamps and the middle position lamp are connected to form position lamps; and the inner lens covers the brake position lamp and the middle position lamp. According to the vehicle body assembly structure, the thick-wall piece and the inner lens are arranged between the light source and the light-emitting face of the lamp, and the problem that the light-emitting face of the lamp is uneven in brightness is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile lamps, and in particular to a vehicle taillight and a vehicle. Background Art

[0002] With the development of automobile lighting technology, vehicle taillights are gradually being designed with through-type light strips. This design usually integrates multiple functions together, which increases the length of the vehicle taillights and easily leads to uneven brightness of the light output surface of the lamp.

[0003] In the prior art, light distribution is usually improved by adding a light homogenizing sheet between the light source and the light emitting surface of the lamp, so that the emitted light is evenly distributed on the light emitting surface of the lamp.

[0004] However, this method has limited effect in solving the problem of uneven brightness of the light emitting surface of the through-light. In addition, the use of the light-homogenizing sheet requires additional installation space, resulting in reduced space utilization of the vehicle taillight design and increased manufacturing costs. Summary of the invention

[0005] The present application provides a vehicle taillight and a vehicle, which are used to effectively solve the problem of uneven brightness of the light-emitting surface of the lamp by introducing a thick-walled member and an inner light-distributing mirror between the light source and the light-emitting surface of the lamp.

[0006] In a first aspect, the present application provides a vehicle taillight, the vehicle taillight comprising:

[0007] The lamp housing and the outer light distribution mirror form a closed lamp cavity;

[0008] Among them, the following are arranged in the closed lamp cavity in the direction from the lamp housing to the external light distribution mirror: a wiring harness assembly, an L-shaped bracket for a turn signal lamp, a PCB board, an LED lamp bead, a thick-walled part, an internal light distribution mirror, and a decorative frame;

[0009] LED lamp beads are arranged on the PCB board to form a through-light, and the through-light includes: brake position lights located at both ends of the PCB board, an intermediate position light located in the middle part of the PCB board, and turn signals located at both ends of the PCB board, the brake position light and the intermediate position light are connected to form a position light, and the thick-walled member includes: a brake position light thick-walled member covering the brake position light and a turn signal thick-walled member covering the turn signal, the turn signal L-shaped bracket is located behind the turn signal thick-walled member, and the side wall of the turn signal L-shaped bracket isolates the brake position light and the turn signal;

[0010] The PCB board is fixed on the lamp housing and the turn signal L-shaped bracket;

[0011] Both ends of the lamp housing are provided with wiring harness holes for arranging wiring harness components;

[0012] The interior mirror covers the brake position lights and the centre position lights.

[0013] In a possible design, a focusing bowl is provided at the rear end of the thick-walled member of the brake position light, and optical leather grains are provided around the focusing bowl and on the light-emitting surface of the thick-walled member.

[0014] In a possible design, the outer light distribution mirror includes a black opaque inner layer and a red transparent outer layer, wherein the black opaque inner layer covers the non-luminous area in the edge portion of the through-lamp, and the red transparent outer layer covers all outer surfaces of the through-lamp.

[0015] In a possible design, the housing and the inner light distribution mirror of the thick-walled part of the brake position light are both arranged in an arc shape.

[0016] In a possible design, inner light distribution mirror housings with inner concave and outer convex are respectively provided at both ends of the inner light distribution mirror, the inner light distribution mirror housings wrap the light emitting surface of the thick-walled part of the brake position lamp, the rest of the inner light distribution mirror is provided with a trapezoidal groove, and the upper and lower sides of the inner light distribution mirror are both provided with raised columns, so as to be fixed to the lamp housing through the raised columns and screws;

[0017] The decorative frame includes: an upper decorative frame and a lower decorative frame, both ends of the upper decorative frame are provided with sawtooth-shaped protrusion structures corresponding to the inner concave and outer convex inner light distribution mirror shell, and the middle part is a long strip protrusion corresponding to the trapezoidal groove of the inner light distribution mirror, both ends of the upper side of the lower decorative frame are provided with sawtooth-shaped protrusion structures and the middle part is a long strip protrusion, both ends of the lower side of the lower decorative frame are provided with turn signal light outlet holes, and the lower side of the lower decorative frame is fixed to the inner side of the lamp shell by an I-type buckle and an extended positioning rib.

[0018] In one possible design, the brake position light thick-walled part includes multiple thick-walled part groups, each thick-walled part group includes multiple small thick-walled parts arranged evenly, adjacent small thick-walled parts are connected by transparent materials, the distance between adjacent small thick-walled parts is 20.5 mm, and the multiple thick-walled part groups are arranged from low to high, and the spacing between the multiple thick-walled part groups is 6.8 mm.

[0019] In a possible design, the middle area of ​​the through-lamp is narrower than the two end areas of the through-lamp, and the two ends of the through-lamp are symmetrical about the middle, the length of the through-lamp is 1.5 meters, the distance between the side wall of the thick-walled part and the inner light distribution mirror is 1.1 mm, the distance between the light emitting surface of the thick-walled part and the inner light distribution mirror is 0.5 mm, and the light emitting surface is arranged at the front end of the inner bottom surface of the inner light distribution mirror.

[0020] In one possible design, the brake position light thick-walled part is a three-dimensional rectangular convex structure, the corresponding position of the brake position light thick-walled part on the inner light distribution mirror is an inner concave and outer convex structure, and the light-emitting surface of the brake position light thick-walled part is at most 13.5 mm away from the inner light distribution mirror.

[0021] In one possible design, the PCB board is initially fixed to the lamp housing and the turn signal L-shaped bracket through positioning holes set on the PCB board itself, positioning columns on the lamp housing, and positioning columns on the turn signal L-shaped bracket, and is secondarily fixed through screws and the positioning columns on the lamp housing.

[0022] In one possible design, an optical diffuser is provided in the interior mirror.

[0023] In a possible design, bolts are also provided on the back of the lamp housing for fixing the vehicle taillight to the body sheet metal.

[0024] In a possible design, a ventilation hole and / or a ventilation cap is further provided on the back side of the lamp housing.

[0025] In a possible design, a door switch hole and a camera mounting hole are also provided in the middle of the lamp housing.

[0026] In a second aspect, the present application provides a vehicle, comprising the vehicle taillight according to the invention of the first aspect.

[0027] The present application provides a vehicle taillight and a vehicle, the vehicle taillight comprising: a lamp housing, an outer light distribution mirror, the lamp housing and the outer light distribution mirror forming a closed lamp cavity; wherein, in the closed lamp cavity, the following are arranged in sequence along the lamp housing toward the outer light distribution mirror: a wiring harness assembly, an L-shaped bracket for a turn signal, a PCB board, LED lamp beads, a thick-walled component, an inner light distribution mirror, and a decorative frame; LED lamp beads are arranged on the PCB board to form a through-light, the through-light comprising: a brake position lamp located at both ends of the PCB board, an intermediate position lamp located in the middle part of the PCB board, and a turn signal located at both ends of the PCB board, the brake position lamp and the intermediate position lamp are connected to form a position lamp, the thick-walled component comprising: a brake position lamp thick-walled component covering the brake position lamp and a turn signal thick-walled component covering the turn signal, the turn signal L-shaped bracket being located behind the turn signal thick-walled component, and the side wall of the turn signal L-shaped bracket isolating the brake position lamp from the turn signal; the PCB board is fixed to the lamp housing and the L-shaped bracket for the turn signal; wiring harness holes are respectively arranged at both ends of the lamp housing for arranging the wiring harness assembly; the inner light distribution mirror covers the brake position lamp and the intermediate position lamp. The following technical effects are achieved: by symmetrically arranging the brake position lights formed by superimposing the brake light area and the position light area at both ends of the PCB board, two different automobile signal functions are realized in the same area of ​​the PCB board, thereby optimizing the space utilization of the vehicle taillight, achieving a more compact and economical design, avoiding the waste of extra space resources of the vehicle taillight, and reducing the manufacturing cost of the vehicle taillight; by making the brake position light and the middle position light serve as the rear position light of the vehicle, the rear position light signal function of the vehicle taillight is increased, and there is no need to additionally set up the rear position light area in the PCB board, thereby improving the space utilization rate of the vehicle taillight and further optimizing the structural design of the vehicle taillight; by using the side wall of the turn signal L-shaped bracket to serve as a light wall to isolate the light emitted by the turn signal and the brake position light, the problem of mutual interference between the two light-emitting areas on the PCB board is avoided; by using The light emitted by the light source of the brake position lamp is first concentrated and guided by the thick-walled part of the brake position lamp, then scattered and evenly lighted by the inner light distribution mirror, and then refracted by the outer light distribution mirror, thereby achieving three-dimensional and uniform light emission of the brake position lamp; the light emitted by the light source of the intermediate position lamp is first directly scattered and evenly lighted by the inner light distribution mirror, and then refracted by the outer light distribution mirror, thereby achieving three-dimensional and uniform light emission of the intermediate position lamp; the light emitted by the light source of the turn signal lamp is first concentrated and guided by the thick-walled part of the turn signal lamp, and then refracted by the outer light distribution mirror, thereby achieving uniform surface emission of the turn signal lamp; the problem of uneven brightness of the light emitting surface of the lamp caused by uneven illumination of the vehicle tail lamp is effectively solved by making the inner light distribution mirror make the light distribution more three-dimensional and uniform, thereby improving the visibility of the vehicle at night or in low visibility conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0030] Figure 1 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 1 ;

[0031] Figure 2 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 2 ;

[0032] Figure 3 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 3 ;

[0033] Figure 4 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 4 ;

[0034] Figure 5 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 5 ;

[0035] Figure 6 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 6 ;

[0036] Figure 7 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 7 .

[0037] Reference numerals:

[0038] 10-lamp housing; 20-external light distribution mirror; 30-wiring harness assembly; 40-turn signal L-shaped bracket; 50-PCB board; 60-LED lamp beads; 70-thick wall parts; 80-internal light distribution mirror; 90-decorative frame;

[0039] 510-brake position light; 520-middle position light; 530-turn signal light; 710-brake position light thick-walled part; 730-turn signal light thick-walled part; 210-black opaque inner layer; 220-red transparent outer layer; 910-upper decorative frame; 920-lower decorative frame;

[0040] 701-light-concentrating bowl; 702-optical dermatoglyphics;

[0041] 810-inner mirror housing; 820-trapezoidal groove; 830-protruding column;

[0042] 901-sawtooth convex structure; 902-long strip convex; 904-I-type buckle; 905-extended positioning rib;

[0043] 110-bolt; 120-vent hole; 130-vent cap; 140-door switch hole; 150-camera mounting hole. DETAILED DESCRIPTION

[0044] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0045] It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "exemplary" or "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way. In the embodiments of the present application, "at least one" refers to one or more, and "more than one" refers to two or more.

[0046] It should be noted that the "at..." in the embodiment of the present application can be the instant when a certain situation occurs, or can be a period of time after a certain situation occurs, and the embodiment of the present application does not specifically limit this. In addition, the vehicle taillight provided in the embodiment of the present application is only used as an example, and a vehicle taillight can also include more or less content.

[0047] In order to clearly describe the technical solutions of the embodiments of the present application, some terms and technologies involved in the embodiments of the present application are briefly introduced below:

[0048] Light homogenizer: It is usually a thin and flat sheet-like structure placed between the light source and the external light distribution mirror. It mainly works through the principle of total internal reflection and uses tiny patterns engraved on its surface or inside to guide and diffuse light to homogenize the light, eliminate the direct visibility of the light source, and make the light evenly distributed on the light output surface of the lamp.

[0049] Thick-walled component: refers to a light-transmitting component with a thick wall thickness, which refracts and reflects light through internal optical structures (such as reflective cups, mirrors, etc.) to achieve uniform distribution of light. It is usually based on optical principles and is precisely processed and manufactured to achieve the propagation and diffusion of light through its own shape and thickness. It mainly relies on the light transmission characteristics and design shape of the material itself, so that the light can achieve the desired light effect after multiple refractions and reflections. In the embodiment of the present application, the thick-walled component is used in combination with the internal light distribution mirror to further improve the uniformity of the output light distribution on the light output surface of the lamp.

[0050] Interior mirror: Usually a concave mirror, the radius of curvature and depth of the concave surface are designed according to a specific light distribution pattern to reduce light scattering and make the light more concentrated. In addition, the design of the interior mirror needs to consider many factors, such as the brightness, position, shape of the bulb and the speed of the vehicle. The interior mirror can ensure that the light is distributed according to the preset pattern to achieve uniform lighting. Some interior mirrors can contain pattern layers to improve the lighting effect by changing the transmittance of the light-transmitting area. At the same time, the materials used to make interior mirrors can also be diverse, such as injection molding materials, glass, etc.

[0051] External light distribution mirror: also known as light distribution mirror or astigmatism glass, is the outermost component of the vehicle taillight. It is usually made of transparent glass or plastic with excellent optical properties, and is composed of many special prisms and lenses inside. These prisms and lenses can change the propagation direction of light and make the emitted light more uniform.

[0052] Structural exploded view: It is a graphical representation method that separates and displays the various parts of a product or component according to the assembly relationship, while keeping the relative positions of the components clearly visible.

[0053] Optical diffusers: refers to microsphere products developed by using polymer polymerization technology through cross-linking, grafting functional groups, etc. It is a type of additive used to change the propagation path of light. They are usually added to transparent or translucent materials (such as plastics, glass, etc.) to achieve light scattering effects.

[0054] With the continuous advancement of automotive lighting technology, through-type taillights are widely used due to their unique design and multi-functional integration. This design can integrate multiple functions such as position lights, brake lights and turn signals into one. However, this design also brings challenges, especially when the length of the light-emitting surface of the lamp increases, it is easy to cause uneven lighting, that is, some areas are too bright while other areas appear darker.

[0055] In order to solve this problem, the traditional method is usually to add a light homogenizer between the light source and the light emitting surface of the lamp to improve the light distribution so that the light is evenly distributed on the light emitting surface of the lamp.

[0056] However, although this method can promote the uniform distribution of the emitted light to a certain extent, it cannot completely eliminate the uneven brightness of the light-emitting surface of the lamp. In addition, the introduction of the light-uniforming sheet also requires additional fixing and installation space to be reserved in the vehicle taillight structure, which not only wastes the space resources of the vehicle taillight, but also increases the manufacturing cost of the vehicle taillight.

[0057] Based on this, the embodiment of the present application proposes a vehicle taillight and a vehicle, which can be used in the field of automobile lamp technology, aiming to solve the above technical problems of the prior art and overcome the limitations of the prior art. According to the synergistic effect of the thick-walled parts and the inner light-distributing mirror between the light source and the light-emitting surface of the lamp, the light path is effectively guided and adjusted to ensure that the light can cover the entire light-emitting surface of the lamp more evenly. It not only achieves more precise control and distribution of light, optimizes light distribution, and improves the uniformity of light, but also effectively solves the problem of uneven brightness of the light-emitting surface of the lamp caused by uneven lighting of the vehicle taillight. It also avoids the problem of space occupation and cost increase caused by the addition of a light-distributing plate, avoids the waste of additional space resources, optimizes space utilization, and achieves a more compact and economical design, thereby reducing the manufacturing cost of vehicle taillights.

[0058] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0059] Figure 1 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 1 In order to facilitate understanding of the assembly process, internal structure, position, connection mode and relationship between components of the vehicle taillight in the embodiment of the present application, Figure 1 The structural explosion diagram of the vehicle taillight is given in the figure.

[0060] like Figure 1 As shown, the vehicle taillight comprises: a lamp housing 10 and an outer light distribution mirror 20, wherein the lamp housing 10 and the outer light distribution mirror 20 form a closed lamp cavity. Specifically, the lamp housing 10 and the outer light distribution mirror 20 can be connected and fixed by welding to form a closed lamp cavity.

[0061] Among them, the following are arranged in sequence in the closed lamp cavity along the lamp housing 10 toward the external light distribution mirror 20: a wiring harness assembly 30, a turn signal L-shaped bracket 40, a PCB board 50, an LED lamp bead 60, a thick-walled part 70, an internal light distribution mirror 80, and a decorative frame 90.

[0062] Specifically, the PCB board 50 refers to a printed circuit board (PCB). The LED lamp bead 60 refers to a light emitting diode (LED) lamp bead. The light source in the embodiment of the present application is the LED lamp bead 60.

[0063] LED lamp beads 60 are arranged on the PCB board 50 to form a through-light, which includes: brake position lights 510 located at both ends of the PCB board 50, middle position lights 520 located in the middle part of the PCB board 50, and turn signals 530 located at both ends of the PCB board. The brake position lights 510 and the middle position lights 520 are connected to form position lights.

[0064] Specifically, the through-light in the embodiment of the present application includes three automobile signal functions, namely, turn signal, position light and brake light. Among them, brake position lights 510 formed by superimposing brake light areas and position light areas are symmetrically arranged at both ends of the PCB board 50. In the area where the brake position lights 510 of the PCB board 50 are located, in addition to the brake light LED light source, position light LED light sources are also cross-uniformly arranged. By superimposing two types of automobile signal function lights in the areas at both ends of the PCB board 50, dual-function light output is achieved in the same area, thereby saving the layout space of the vehicle taillights.

[0065] That is, the two ends of the PCB board 50 can be divided into two parts, the upper part is the brake position light area formed by the superposition of the position light and the brake light, and the lower part is the turn signal light area. Specifically, the brake position light 510 and the turn signal light 530 are arranged in sequence from top to bottom through the symmetrically wider areas at both ends of the light. The narrower area in the middle of the light is arranged as the middle position light 520. The brake position light 510 and the middle position light 520 can serve as the rear position light of the vehicle together.

[0066] The thick-walled member 70 includes: a brake position light thick-walled member 710 covering the brake position light 510 and a turn signal light thick-walled member 730 covering the turn signal light 530. The turn signal light L-shaped bracket 40 is located behind the turn signal light thick-walled member 730. The side wall of the turn signal light L-shaped bracket 40 isolates the brake position light 510 and the turn signal light 530. Specifically, the thick-walled member 70 only covers the wider areas on both sides of the PCB board 50, and does not cover the narrower position light area in the middle. The turn signal light L-shaped bracket 40 is fixedly connected to the PCB board 50 and can be used to install and fix the turn signal light thick-walled member 730. The side wall of the turn signal light L-shaped bracket 40 can act as a light wall to isolate the light emitted by the turn signal light 530 and the brake position light 510, so as to prevent the two light-emitting areas on the PCB board 50 from interfering with each other.

[0067] The PCB board 50 is fixed on the lamp housing 10 and the turn signal lamp L-shaped bracket 40. Both ends of the lamp housing 10 are respectively provided with harness holes for arranging the harness assembly 30. The inner light distribution mirror 80 covers the brake position lamp 510 and the intermediate position lamp 520.

[0068] It can be seen from the above structure that the through-light in the embodiment of the present application adopts three light emitting modes, namely:

[0069] The brake position lamp 510 first uses the LED lamp bead 60 as a direct light source; then the brake position lamp thick-walled part 710 is used to focus and guide the light; then, the inner light distribution mirror 80 is used to scatter and evenly distribute the light; and then, the light is refracted through the outer light distribution mirror 20 to comprehensively realize the three-dimensional uniform lighting of the brake position lamp 510.

[0070] The middle position lamp 520 firstly adopts the LED lamp bead 60 as a direct light source; then, the light is directly scattered and uniformed through the inner light distribution mirror 80; finally, the light is refracted through the outer light distribution mirror 20 to realize the three-dimensional uniform light emission of the middle position lamp 520.

[0071] The turn signal lamp 530 firstly still uses the LED lamp bead 60 as a direct light source; then, the turn signal lamp thick-walled part 730 is used to focus and guide the light; finally, the light is refracted through the outer light distribution mirror 20 to achieve uniform surface illumination of the turn signal lamp 530.

[0072] In summary, the brake position lamp 510 and the middle position lamp 520 are both illuminated by the inner light distribution mirror 80, making the light distribution more three-dimensional and uniform, thereby improving the visibility of the vehicle at night or in low visibility conditions. The light finally emitted by the brake position lamp 510 and the middle position lamp 520 is three-dimensional uniform light, which means that the light is emitted from a three-dimensional space to form a relatively uniform light field. This design helps to ensure that the light can clearly convey the braking status of the vehicle, so that other road users have enough time to react. At the same time, it helps to ensure that the overall outline of the vehicle can be clearly displayed, thereby improving the road safety of the vehicle.

[0073] The turn signal lamp 530 is designed to emit light from a uniform surface light source, thereby achieving a broad and uniform lighting effect. This means that the light is emitted from a relatively flat surface, forming a relatively wide light band or light surface. This design helps to ensure that the light can clearly indicate the vehicle's turning intention, allowing other road users to quickly identify it.

[0074] Further, the outer light distribution mirror 20 includes a black opaque inner layer 210 and a red transparent outer layer 220. The black opaque inner layer 210 covers the non-luminous area in the edge of the through-lamp, and the red transparent outer layer 220 covers all the outer surfaces of the through-lamp. The decorative frame 90 includes: an upper decorative frame 910 and a lower decorative frame 920.

[0075] Specifically, the outer light distribution mirror 20 is divided into two layers, the inner layer is black and opaque, and only covers the non-luminous areas of the upper and lower edges of the lamp, which is used to block unnecessary light and ensure that only the designated area is illuminated. In other words, the black opaque inner layer 210 has a similar function to the decorative frame, and limits the boundaries of the luminous areas of the three functional areas of the turn signal, position light and brake light, while shielding the internal structure of the lamp and stray light.

[0076] The outer layer can be transparent light red, covering the entire outer surface of the through-light. Since the light red can absorb part of the light, the emitted light is softer and more comfortable, which not only makes the vehicle taillight more beautiful and attractive in appearance, but also plays a role in filtering light. At the same time, this color can also improve the recognition of the vehicle taillight to a certain extent. That is to say, the red transparent outer layer 220 is the light-transmitting area of ​​the three functional areas of the turn signal light, the position light and the brake light. The light emitted by these three functional areas is refracted by the red transparent outer layer 220 to increase the light-emitting area, making the emitted light more eye-catching and uniform.

[0077] The unshielded area of ​​the inner black opaque layer 210 is the actual light-emitting area of ​​the through-lamp, which can achieve specific lighting effects and light distribution, ensuring that the light can be effectively transmitted. At the same time, a unique visual effect can be created through the outer light red outer layer.

[0078] Furthermore, the exterior light mirror 20 can be made of high-performance polymethylmethacrylate (PMMA) material and can be integrally formed through two-color injection molding technology, which not only ensures the strength and durability of the exterior light mirror 20 but also meets the complex design requirements of the vehicle taillights.

[0079] Furthermore, the housing and the inner light distribution mirror of the thick-walled part of the brake position light are arranged in an arc shape, so that the LED lamp beads at both ends of the brake position light emit uniform three-dimensional light.

[0080] A vehicle taillight provided in the present embodiment comprises: a lamp housing and an outer light distribution mirror, wherein the lamp housing and the outer light distribution mirror form a closed lamp cavity; wherein, in the closed lamp cavity, the following are arranged in sequence along the lamp housing toward the outer light distribution mirror: a wiring harness assembly, an L-shaped bracket for a turn signal, a PCB board, an LED lamp bead, a thick-walled member, an inner light distribution mirror, and a decorative frame; LED lamp beads are arranged on the PCB board to form a through-light, the through-light comprises: a brake position lamp located at both ends of the PCB board, an intermediate position lamp located in the middle part of the PCB board, and a turn signal located at both ends of the PCB board, the brake position lamp and the intermediate position lamp are connected to form a position lamp, the thick-walled member comprises: a brake position lamp thick-walled member covering the brake position lamp and a turn signal thick-walled member covering the turn signal, the turn signal L-shaped bracket is located behind the turn signal thick-walled member, and the side wall of the turn signal L-shaped bracket isolates the brake position lamp from the turn signal; the PCB board is fixed to the lamp housing and the L-shaped bracket for the turn signal; wiring harness holes are respectively arranged at both ends of the lamp housing for arranging the wiring harness assembly; the inner light distribution mirror covers the brake position lamp and the intermediate position lamp.

[0081] The following technical effects are achieved: by symmetrically arranging the brake position lights formed by superimposing the brake light area and the position light area at both ends of the PCB board, two different automobile signal functions are realized in the same area of ​​the PCB board, thereby optimizing the space utilization of the vehicle taillight, achieving a more compact and economical design, avoiding the waste of extra space resources of the vehicle taillight, and reducing the manufacturing cost of the vehicle taillight; by making the brake position light and the middle position light serve as the rear position light of the vehicle, the rear position light signal function of the vehicle taillight is increased, and there is no need to additionally set up the rear position light area in the PCB board, thereby improving the space utilization rate of the vehicle taillight and further optimizing the structural design of the vehicle taillight; by using the side wall of the turn signal L-shaped bracket to serve as a light wall to isolate the light emitted by the turn signal and the brake position light, the problem of mutual interference between the two light-emitting areas on the PCB board is avoided; by using The light emitted by the light source of the brake position lamp is first concentrated and guided by the thick-walled part of the brake position lamp, then scattered and evenly lighted by the inner light distribution mirror, and then refracted by the outer light distribution mirror, thereby achieving three-dimensional and uniform light emission of the brake position lamp; the light emitted by the light source of the intermediate position lamp is first directly scattered and evenly lighted by the inner light distribution mirror, and then refracted by the outer light distribution mirror, thereby achieving three-dimensional and uniform light emission of the intermediate position lamp; the light emitted by the light source of the turn signal lamp is first concentrated and guided by the thick-walled part of the turn signal lamp, and then refracted by the outer light distribution mirror, thereby achieving uniform surface emission of the turn signal lamp; the problem of uneven brightness of the light emitting surface of the lamp caused by uneven illumination of the vehicle tail lamp is effectively solved by making the inner light distribution mirror make the light distribution more three-dimensional and uniform, thereby improving the visibility of the vehicle at night or in low visibility conditions.

[0082] Figure 2 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 2 In order to facilitate understanding of the specific structure of the two ends of the PCB board 50 in the embodiment of the present application, Figure 2 A cross-sectional view of the brake position lamp 510 and the turn signal lamp 530 is given in FIG.

[0083] like Figure 2 As shown, a focusing bowl 701 is provided at the rear end of the brake position light thick-walled member 710 , and optical leather grains 702 are provided around the focusing bowl 701 and on the light-emitting surface of the thick-walled member.

[0084] Specifically, a focusing bowl 701 is provided at the rear end of the brake position light thick-walled member 710 , and the front end is the light emitting surface of the thick-walled member.

[0085] Furthermore, a focusing bowl 701 is also provided at the rear end of the turn signal lamp thick-walled member 730, and the front end is the light emitting surface of the thick-walled member.

[0086] The number of the focusing bowls 701 is consistent with the number of the LED lamp beads 60 arranged at both ends of the PCB board 50 , and each LED lamp bead 60 at both ends of the PCB board 50 is correspondingly provided with a focusing bowl 701 .

[0087] Optical grains are arranged around the focusing bowl 701, and the optical grains here can be rectangular grains, which are used to gather and reflect the light emitted by the LED lamp beads 60 into the inside of the thick-walled part. Optical grains 702 are also arranged on the light-emitting surface at the front end of the thick-walled part, and the optical grains here can be corn-shaped grains. It is used to scatter and evenly distribute the reflected light, so that the light emitted by the light source is more uniform. The function of the thick-walled part is to focus, emit and evenly distribute light, thereby improving the utilization rate of the LED light source and increasing the uniformity of the emitted light.

[0088] In addition, the optical dermatoglyphics may also be triangular dermatoglyphics, diamond dermatoglyphics, etc., which are not specifically limited here.

[0089] By focusing light through the optical grain of the focusing bowl, the utilization rate of the light source can be improved, and the grain of the light-emitting surface scatters light, making the emitted light more uniform.

[0090] Figure 3 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 3 In order to facilitate understanding of the specific structure of the inner light distribution mirror 80 in the embodiment of the present application, Figure 3 A partial schematic diagram of the inner light distribution mirror 80 is given in FIG.

[0091] The two ends of the inner light distribution mirror 80 are respectively provided with an inner light distribution mirror housing 810 which is concave inside and convex outside. Figure 3As shown, the inner light mirror housing 810 wraps the light emitting surface of the brake position lamp thick-walled part 710, and the rest of the inner light mirror 80 is provided with a trapezoidal groove 820. The upper and lower sides of the inner light mirror 80 are both provided with raised columns 830 to be fixed to the lamp housing 10 through the raised columns 830 and screws.

[0092] Specifically, the brake position light thick-walled member 710 includes a plurality of independent three-dimensional rectangular protrusions, that is, a plurality of independent three-dimensional rectangles, and the inner light distribution mirror 80 is correspondingly arranged at the front end of the brake position light thick-walled member 710. Therefore, the portion of the inner light distribution mirror 80 corresponding to each rectangular protrusion is designed to be an inner concave and outer convex structure, that is, the inner light distribution mirror housing 810 is set to be an inner concave and outer convex shape according to the shape of the brake position light thick-walled member 710, and the thickness is uniform, so as to cooperate with the brake position light thick-walled member 710.

[0093] Furthermore, ten protruding columns 830 may be provided on the upper side of the inner light distribution mirror 80 , and two protruding columns 830 may be provided on the lower side, so as to facilitate fixing the inner light distribution mirror 80 on the lamp housing 10 through the protruding columns 830 and screws.

[0094] In addition, the specific shape of the inner mirror housing 810 can be changed according to the specific shape of the brake position light thick-walled part 710. In the embodiment of the present application, the brake position light thick-walled part 710 includes multiple independent three-dimensional rectangles, which is only an example. The brake position light thick-walled part 710 can also be designed into other shapes according to actual needs.

[0095] Figure 4 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 4 In order to facilitate understanding of the specific structure of the decorative frame 90 in the embodiment of the present application, Figure 4 A partial schematic diagram of the decorative frame 90 is given in FIG.

[0096] like Figure 4 As shown, the decorative frame 90 includes: an upper decorative frame 910 and a lower decorative frame 920, the upper decorative frame 910 has two ends provided with a sawtooth shaped protrusion structure 901 corresponding to the inner concave and outer convex inner light distribution mirror shell 810, and the middle part is a long strip protrusion 902 corresponding to the trapezoidal groove 820 of the inner light distribution mirror, the upper ends of the lower decorative frame 920 are provided with a sawtooth shaped protrusion structure and the middle part is a long strip protrusion, the lower ends of the lower side of the lower decorative frame 920 are provided with turn signal light outlet holes 903, and the lower side of the lower decorative frame is fixed to the inner side of the lamp housing 10 by an I-type buckle 904 and an extended positioning rib 905.

[0097] In one possible design, the brake position light thick-walled component 710 includes a plurality of thick-walled component groups, each thick-walled component group includes a plurality of evenly arranged small thick-walled components, adjacent small thick-walled components are connected by transparent materials, the distance between adjacent small thick-walled components is 20.5 mm, and the plurality of thick-walled component groups are arranged from low to high, and the spacing between the plurality of thick-walled component groups is 6.8 mm.

[0098] Specifically, the brake position light thick-walled parts 710 located at both ends of the PCB board 50 may include a plurality of thick-walled parts groups. For example, the brake position light thick-walled parts located at either end of the PCB board 50 may include three thick-walled parts groups, each of which may include five uniformly arranged small thick-walled parts of the same shape, and each of the small thick-walled parts may be connected with transparent polycarbonate (PC) material. The transparent PC material facilitates the transmission of light emitted by the position light LED lamp beads superimposed with the brake light.

[0099] Furthermore, a hole may be formed in the transparent PC material in the middle of each small thick-walled part, so that the thick-walled part can be installed and fixed on the lamp housing 10 through the hole.

[0100] The spacing between two adjacent small thick-walled parts is 20.5 mm. The three thick-walled parts are evenly arranged from low to high from outside to inside, and the spacing from low to high is 6.8 mm.

[0101] The shape of the inner light-distributing mirror housing 810 can be designed according to the specific shape of the small thick-walled parts. Specifically, the wider areas at both ends of the inner light-distributing mirror housing 810 can correspond to the small thick-walled parts, and 15 convex housings are designed respectively to correspond to the light-emitting surfaces of each small thick-walled part, and can also be evenly arranged at both ends of the through-light according to a spacing of 20.5 mm. Evenly arranged grooves can be formed between the 15 convex housings, and correspond to the sawtooth-shaped protrusion structures of the upper decorative frame and the lower decorative frame, respectively, so as to facilitate the installation, and realize mutual buckling and fixing, thereby preventing the decorative frame 90 from shaking up and down, thereby enhancing the structural stability of the vehicle taillight. The trapezoidal groove 820 of the inner light-distributing mirror housing 810 can cooperate with the long strip protrusion of the decorative frame 90 to lock and fix the decorative frame 90, thereby preventing the decorative frame 90 from moving up and down. By locking and fixing the trapezoidal groove 820 with the long strip protrusions of the upper decorative frame and the lower decorative frame, the decorative frame 90 can be prevented from shaking up and down, and the stability of the internal structure of the vehicle taillight can be enhanced.

[0102] Specifically, the upper decorative frame 910 is a long and thin strip as a whole, and a sawtooth-shaped protrusion structure 901 corresponding to the inner concave and outer convex inner mirror housing 810 is provided at both ends to cooperate with the grooves evenly arranged between the inner mirror housing 810 to achieve the locking and fixing of the upper decorative frame 910. The middle part of the upper decorative frame 910 is designed as a long strip protrusion 902 to cooperate with the long strip-shaped trapezoidal groove 820 in the middle part of the inner mirror 80 to further achieve the locking and fixing of the upper decorative frame 910. The upper side edge design of the lower decorative frame 920 is similar to that of the upper decorative frame, and the sawtooth-shaped protrusion structure cooperates with the grooves evenly arranged between the inner mirror housing 810 to achieve the locking and fixing of the lower decorative frame 920, and the long strip protrusion cooperates with the trapezoidal groove 820 to further achieve the locking and fixing of the lower decorative frame 920.

[0103] The sawtooth protrusions and the long strip protrusions of the decorative frame 90 are respectively matched and fastened with the grooves evenly arranged between the inner mirror housing 810 and the trapezoidal grooves 820, which facilitates installation and increases the internal strength of the vehicle taillight, while saving installation space.

[0104] In addition, the lower decorative frame 920 is provided with turn signal light outlet holes 903 in the wider areas at both ends of the lower side, for the turn signal light outlet surface to emit light. The lower side edge of the lower decorative frame is provided with a plurality of I-shaped buckles 904 and a plurality of extended positioning ribs 905, so as to be fixed to the inner side of the lamp housing 10 through the I-shaped buckles 904 and the extended positioning ribs 905. The decorative frame 90 can fully shield the internal structure of the vehicle taillight and the excess stray light, avoid light leakage and uneven brightness at the edge of the light-emitting area, and can also separate the light-emitting areas of the turn signal and the brake position light.

[0105] In a possible design, the middle area of ​​the through-lamp is narrower than the two end areas of the through-lamp, and the two ends of the through-lamp are symmetrical about the middle, the length of the through-lamp is 1.5 meters, the distance between the side wall of the thick-walled part and the inner light distribution mirror is 1.1 mm, the distance between the light emitting surface of the thick-walled part and the inner light distribution mirror is 0.5 mm, and the light emitting surface is arranged at the front end of the inner bottom surface of the inner light distribution mirror.

[0106] In one possible design, the brake position light thick-walled part is a three-dimensional rectangular convex structure, the corresponding position of the brake position light thick-walled part on the inner light distribution mirror is an inner concave and outer convex structure, and the light-emitting surface of the brake position light thick-walled part is at most 13.5 mm away from the inner light distribution mirror.

[0107] The LED lamp beads in the turn signal area can be evenly arranged at a spacing of 10 mm, the LED lamp beads in the brake position lamp area can also be evenly arranged at a spacing of 10 mm, and the LED lamp beads in the middle position lamp area can be evenly arranged at a spacing of 15 mm. The PCB board can be spliced ​​together by multiple small PCB boards according to the shape requirements, and the PCB boards can be connected by wire harnesses.

[0108] In one possible design, the PCB board is initially fixed to the lamp housing and the turn signal L-shaped bracket through positioning holes set on the PCB board itself, positioning columns on the lamp housing, and positioning columns on the turn signal L-shaped bracket, and is secondarily fixed through screws and the positioning columns on the lamp housing.

[0109] In a possible design, an optical diffuser is included in the inner mirror to increase the scattering and transmission of light, shielding the light source and the glare source while evenly scattering and refracting the light emitted by the brake light and position light to achieve uniform light output, making the light emitted by the entire vehicle taillight more uniform and softer, achieving a comfortable effect of light transmission and opacity. By adding an optical diffuser to the inner mirror, the internal LED light source and structure of the brake position light can be shielded, and the effect of full divergence and uniform light can be achieved.

[0110] Figure 5 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 5 In order to facilitate understanding of the specific structure of the vehicle taillight in the embodiment of the present application, Figure 5 A rear view of the vehicle's taillights is given in FIG.

[0111] like Figure 5 As shown, bolts 110 are also provided on the back of the lamp housing 10 for fixing the vehicle taillight to the body sheet metal.

[0112] Specifically, the back of the lamp housing 10 may be provided with a plurality of bolts 110 , for example, 6 bolts 110 , and the vehicle taillights may be fixed to the vehicle body sheet metal by the cooperation of the bolts 110 and nuts.

[0113] Furthermore, a ventilation hole 120 and / or a ventilation cap 130 is also provided on the back side of the lamp housing 10 .

[0114] That is to say, a plurality of ventilation holes and / or ventilation caps 130 may be further provided on the back of the lamp housing 10. For example, two ventilation caps and four ventilation holes are provided to dissipate heat of the vehicle taillight when the vehicle taillight is lit, and balance the air pressure inside and outside the vehicle taillight.

[0115] In addition, a harness hole may be reserved at each of the two ends of the lower side of the lamp housing 10 for arranging the lamp control circuit, thereby facilitating the wiring harness assembly 30 to pass through the harness hole.

[0116] Figure 6 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 6 In order to facilitate understanding of the specific structure of the vehicle taillight in the embodiment of the present application, Figure 6 A front view of a vehicle taillight is given in FIG.

[0117] like Figure 6As shown, a door switch hole 140 and a camera mounting hole 150 are also provided in the middle of the lamp housing 10 .

[0118] Specifically, a rectangular door switch hole 140 and a circular rear camera mounting hole are reserved in the middle position of the lamp housing 10, which can be used for the installation of a door switch (vehicle rear door switch, i.e., a one-touch switch for the vehicle trunk) and a rear camera (i.e., a reversing camera), thereby further saving the overall installation space of the vehicle taillights and increasing the practicality of the vehicle taillights.

[0119] Figure 7 A vehicle taillight schematic diagram provided in an embodiment of the present application Figure 7 In order to facilitate understanding of the specific structure of the narrower area in the middle of the PCB board in the embodiment of the present application, Figure 2 A partial cross-sectional schematic diagram of the intermediate position lamp 520 is given in FIG.

[0120] like Figure 7 As shown, in a possible design, the LED lamp beads 60 corresponding to the middle position lamp 520 are directly mounted on the PCB board 50, and there is no need to set a focusing bowl 701 for focusing.

[0121] The present application also provides a vehicle, comprising the above-mentioned vehicle taillight.

[0122] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle taillight, characterized in that: include: A lamp housing and an external light distribution mirror, wherein the lamp housing and the external light distribution mirror form a closed lamp cavity; Wherein, the enclosed lamp cavity is provided with: a wiring harness assembly, an L-shaped bracket of a turn signal lamp, a PCB board, an LED lamp bead, a thick-walled part, an inner light distribution mirror, and a decorative frame in sequence along the direction from the lamp housing to the outer light distribution mirror; The LED lamp beads are arranged on the PCB board to form a through-light, and the through-light includes: brake position lights located at both ends of the PCB board, an intermediate position light located in the middle part of the PCB board, and turn signals located at both ends of the PCB board, and the brake position lights and the intermediate position lights are connected to form position lights, and the thick-walled member includes: a brake position light thick-walled member covering the brake position light and a turn signal thick-walled member covering the turn signal, and the turn signal L-shaped bracket is located behind the turn signal thick-walled member, and the side wall of the turn signal L-shaped bracket isolates the brake position light and the turn signal; The PCB board is fixed on the lamp housing and the turn signal lamp L-shaped bracket; Both ends of the lamp housing are respectively provided with wiring harness holes for arranging the wiring harness assembly; The interior light mirror covers the brake position lamp and the intermediate position lamp.

2. The vehicle taillight according to claim 1, characterized in that: A focusing bowl is arranged at the rear end of the thick-walled part of the brake position light, and optical leather grains are arranged around the focusing bowl and on the light-emitting surface of the thick-walled part.

3. The vehicle taillight according to claim 1, characterized in that: The exterior light distribution mirror comprises a black opaque inner layer and a red transparent outer layer, wherein the black opaque inner layer covers a non-luminous area in an edge portion of the through-light, and the red transparent outer layer covers all outer surfaces of the through-light.

4. The vehicle taillight according to claim 1, characterized in that: The housing of the thick-walled part of the brake position lamp and the inner light distribution mirror are both arranged in an arc shape.

5. The vehicle taillight according to any one of claims 1 to 4, characterized in that: Both ends of the inner light distribution mirror are respectively provided with inner light distribution mirror shells with inner concave and outer convex, the inner light distribution mirror shells wrap the light emitting surface of the thick-walled part of the brake position lamp, the rest of the inner light distribution mirror is provided with a trapezoidal groove, and the upper and lower sides of the inner light distribution mirror are both provided with raised columns, so as to be fixed to the lamp housing through the raised columns and screws; The decorative frame includes: an upper decorative frame and a lower decorative frame, the two ends of the upper decorative frame are provided with a sawtooth shaped protrusion structure corresponding to the inner concave and outer convex inner light distribution mirror shell, and the middle part is a long strip protrusion corresponding to the trapezoidal groove of the inner light distribution mirror, the two ends of the upper side of the lower decorative frame are provided with a sawtooth shaped protrusion structure and the middle part is a long strip protrusion, the two ends of the lower side of the lower decorative frame are provided with turn signal light outlet holes, and the lower side of the lower decorative frame is fixed to the inner side of the lamp housing by an I-type buckle and an extended positioning rib.

6. The vehicle taillight according to claim 1, characterized in that: The brake position light thick-walled component includes a plurality of thick-walled component groups, each thick-walled component group includes a plurality of evenly arranged small thick-walled components, adjacent small thick-walled components are connected by transparent material, the distance between adjacent small thick-walled components is 20.5 mm, and the plurality of thick-walled component groups are arranged from low to high, and the spacing between the plurality of thick-walled component groups is 6.8 mm.

7. The vehicle taillight according to claim 1, characterized in that: The middle area of ​​the through-lamp is narrower than the two end areas of the through-lamp, and the two ends of the through-lamp are symmetrical about the middle, the length of the through-lamp is 1.5 meters, the distance between the side wall of the thick-walled part and the inner light distribution mirror is 1.1 mm, the distance between the light emitting surface of the thick-walled part and the inner light distribution mirror is 0.5 mm, and the light emitting surface is arranged at the front end of the inner bottom surface of the inner light distribution mirror.

8. The vehicle taillight according to claim 1, characterized in that: The brake position light thick-walled part is a three-dimensional rectangular convex structure, and the corresponding position of the brake position light thick-walled part on the inner light distribution mirror is an inner concave and outer convex structure. The light emitting surface of the brake position light thick-walled part is at most 13.5 mm away from the inner light distribution mirror.

9. The vehicle taillight according to claim 1, characterized in that: The PCB board is initially fixed to the lamp housing and the turn signal L-shaped bracket through positioning holes set on the PCB board itself, positioning columns on the lamp housing, and positioning columns on the turn signal L-shaped bracket, and is secondarily fixed through screws and the positioning columns on the lamp housing.

10. The vehicle taillight according to claim 1, characterized in that: The inner light distribution mirror contains an optical diffuser.

11. The vehicle taillight according to claim 1, characterized in that: Bolts are also provided on the back of the lamp housing for fixing the vehicle taillight on the body sheet metal.

12. The vehicle taillight according to claim 1, characterized in that: The back of the lamp housing is also provided with ventilation holes and / or a ventilation cap.

13. The vehicle taillight according to claim 1, characterized in that: A door switch hole and a camera mounting hole are also provided in the middle of the lamp housing.

14. A vehicle, characterized in that: A vehicle taillight comprising the vehicle taillight according to any one of claims 1 to 13.

Images