Tail light and vehicle

By employing a cavity design for the lamp glass, lamp housing, and center plate in the taillight, and utilizing reflective grooves to block light path interference, the problem of mutual interference between traditional taillight light paths is solved, resulting in a more aesthetically pleasing taillight effect and reduced manufacturing costs.

CN119755552BActive Publication Date: 2026-04-14SAIC GM WULING AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-04-14

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Abstract

The application provides a tail lamp and a vehicle, and belongs to the technical field of vehicle lighting. The tail lamp comprises a lamp bulb, a lamp shell, a middle plate, a turn signal lamp, a brake lamp and a position lamp. The lamp bulb and the lamp shell jointly enclose a cavity. The middle plate is arranged in the cavity, and the middle plate and the lamp bulb jointly enclose a first separated cavity. The middle plate and the lamp shell jointly enclose a second separated cavity. At least two light reflection grooves are arranged on one side of the middle plate in the first separated cavity. The turn signal lamp and the brake lamp are arranged in the two light reflection grooves respectively. The middle plate is provided with a light transmission part. The position lamp is arranged in the second separated cavity corresponding to the light transmission part.
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Description

Technical Field

[0001] This invention relates to the field of vehicle lighting technology, and in particular to a taillight and a vehicle. Background Technology

[0002] The traditional taillight structure consists of a closed cavity formed by the lamp glass and the lamp housing. The reflector, the bulb inside the reflector, the position lights, and the translucent middle plate are all located within the cavity. The position lights and the bulb are staggered and positioned near the outer edge of the cavity. The middle plate is positioned between the position lights and the lamp glass, and it has a light outlet corresponding to the reflector, allowing the bulb to emit light through the outlet. There is an open cavity between the middle plate and the bulb, and also an open cavity between the position lights and the light outlet. The middle plate is used to conceal the electrical components of the rear position lights, improving aesthetics.

[0003] This type of taillight design, with the position lights, center plate, and bulb all housed in the same cavity, has an open cavity between the center plate and the bulb on the side facing the position lights, and also an open cavity between the position lights and the light outlet. This results in interference between the light paths and affects the aesthetics. Specifically, when the turn signal or brake light bulb is lit, some of the light emitted by the bulb diffuses freely through the open cavity and illuminates the side of the center plate facing the position lights. When the position lights are lit, the light from the position lights diffuses freely through the open cavity and escapes from the light outlet, resulting in white light overflowing from the light outlet. Summary of the Invention

[0004] The purpose of this invention is to provide a taillight and vehicle, wherein the taillight of this invention improves the aesthetics when illuminated and avoids mutual interference of light paths.

[0005] To achieve the objectives of this invention, the following technical solution is adopted:

[0006] According to one aspect of the present invention, a taillight is provided, comprising a lamp glass, a lamp housing, a center plate, a turn signal, a brake light, and a position light. The lamp glass and the lamp housing together form a cavity, the center plate is disposed within the cavity, and the center plate and the lamp glass together form a first partition cavity, the center plate and the lamp housing together form a second partition cavity, at least two reflective grooves are provided on one side of the center plate located within the first partition cavity, the turn signal and the brake light are respectively disposed within the two reflective grooves, the center plate is provided with a light-transmitting portion, and the position light is installed in the second partition cavity corresponding to the light-transmitting portion.

[0007] According to one embodiment of the present invention, the middle plate includes a reflective bowl and an annular connecting plate, the reflective groove is located on the reflective bowl, and the annular connecting plate surrounds the reflective bowl.

[0008] According to one embodiment of the present invention, the light-transmitting portion is located on the annular connecting plate, and the shape of the light-transmitting portion matches the shape of the position lamp.

[0009] According to one embodiment of the present invention, the annular connecting plate is further provided with a non-transparent portion, and the transparent portion is located between the non-transparent portion and the reflective bowl.

[0010] According to one embodiment of the present invention, the outer edge of the reflector bowl, the light-transmitting part, and the non-light-transmitting part together form a groove with the opening facing the lamp housing, and the position lamp is located in the groove.

[0011] According to one embodiment of the present invention, the inner wall of the reflective groove is uncoated and has a white optical pattern.

[0012] According to one embodiment of the present invention, it further includes a lamp mounting base, which is mounted on the lamp housing, and one end of the lamp mounting base extends into the second cavity. A lamp hole is provided in the reflector groove, and one end of the turn signal and the brake light respectively passes through the lamp hole and is electrically connected to the lamp mounting base.

[0013] According to one embodiment of the present invention, the middle plate is provided with a plurality of mounting arms on one side of the second cavity, each mounting arm including a first arm and a second arm, the position light being located between the first arm and the second arm, and the first arm and the second arm jointly clamping the position light.

[0014] According to one embodiment of the present invention, the back of the middle plate has a plurality of connecting posts, the connecting posts having threaded holes for connecting with screws, the lamp housing having through holes corresponding to the connecting posts, and one end of the screw passing through the through holes and connecting with the threaded holes.

[0015] The present invention also discloses a vehicle, including a vehicle body and at least two taillights as described above, wherein the two taillights are respectively mounted on both sides of the rear of the vehicle body.

[0016] One embodiment of the present invention has the following advantages or beneficial effects:

[0017] This invention discloses a taillight comprising a lamp glass, a lamp housing, a center plate, turn signals, brake lights, and position lights. The lamp glass and lamp housing together form a cavity, and the center plate is disposed within the cavity. The center plate and lamp glass together form a first partition cavity, and the center plate and lamp housing together form a second partition cavity. At least two reflective grooves are formed on one side of the center plate within the first partition cavity. The turn signals and brake lights are respectively disposed within the two reflective grooves. The center plate has a light-transmitting portion, and the position lights are installed within the second partition cavity corresponding to the light-transmitting portion. Because the bulbs of the turn signals and brake lights are separated from the side of the light-transmitting portion facing the position lights by the walls of the reflective grooves, and there is no open cavity between them, the turn signals do not illuminate the side of the light-transmitting portion facing the position lights when illuminated. Furthermore, because the position lights are separated from the first partition cavity by the center plate and the light-transmitting portion, and there is no open cavity between them, the light source of the position lights does not bypass the center plate and the light-transmitting portion when illuminated, thereby improving the aesthetics of the taillight when illuminated. Attached Figure Description

[0018] The above and other features and advantages of the present invention will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0019] Figure 1 This is a cross-sectional view of a taillight according to an exemplary embodiment.

[0020] Figure 2 This is an exploded view of a taillight according to an exemplary embodiment.

[0021] Figure 3 yes Figure 2 An enlarged view of the center plate and lamp glass is shown.

[0022] Figure 4 This is a rear structural diagram of the middle plate according to an exemplary embodiment.

[0023] The reference numerals in the attached figures are explained as follows:

[0024] 1. Lamp glass; 2. Lamp housing; 3. Middle plate; 31. Reflector bowl; 311. Reflector groove; 312. Lamp hole; 313. Mounting arm; 3131. First arm; 3132. Second arm; 314. Heat dissipation vent; 32. Annular connecting plate; 321. Connecting post; 322. Light-transmitting part; 323. Light-blocking part; 324. Groove; 33. Heat dissipation plate; 4. Turn signal; 5. Brake light; 6. Position light; 7. Lamp mounting base; 71. First lamp holder; 72. Second lamp holder; 8. Cavity; 81. First cavity; 82. Second cavity; 9. Desiccant. Detailed Implementation

[0025] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0026] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0027] like Figure 1-4 As shown, a taillight according to an embodiment of the present invention includes a lamp glass 1, a lamp housing 2, a center plate 3, a turn signal 4, a brake light 5, and a position light 6.

[0028] The lamp glass 1 is made of a highly transparent and light-resistant material, which gives the surface of the lamp glass 1 good light transmission performance, ensuring the brightness requirements when lit, and the good light resistance ensures that the lamp glass will not easily oxidize or discolor under ultraviolet light and natural light for a long time.

[0029] The lamp housing 2 is injection molded from PC+ABS material. PC+ABS material has good processing performance and mechanical properties, as well as good appearance quality. Excellent mechanical properties can ensure that the lamp housing performs well when subjected to impact and load, and good appearance quality can ensure that it has a good visual appearance on the secondary surface of the lamp. The lamp housing 2 is provided with a lamp holder hole for the lamp mounting base 7 to extend into.

[0030] The lamp housing 2 and the lamp glass 1 together form a cavity 8. Preferably, the edges of the lamp glass 1 and the edges of the lamp housing 6 are welded together by vibration friction welding. Vibration friction welding has the technical effects of high connection strength and excellent airtight performance.

[0031] The middle plate 3 is formed by injection molding using PC material. The middle plate 3 is set inside the cavity 8, and the middle plate 3 and the lamp glass 1 together form the first cavity 81, and the middle plate 3 and the lamp housing 2 together form the second cavity 82.

[0032] The middle plate 3 has at least two reflective grooves 311 with openings facing the lamp glass 1 on one side inside the first cavity 81. The turn signal 4 and the brake light 5 are respectively installed in the two reflective grooves 311.

[0033] The middle plate 3 is provided with a light-transmitting part 322, and the position light 6 is installed in the second partition 82 corresponding to the light-transmitting part 322.

[0034] like Figure 1-4As shown, the taillight of the present invention is separated from the bulbs of the turn signal 4 and brake light 5 by the wall of the reflector groove 311 between the light-transmitting part 322 facing the position light 6 and the bulbs of the brake light 5, and there is no open cavity between them. This prevents the turn signal 4 from shining on the side of the light-transmitting part 322 facing the position light 6 when it is lit. Also, because the position light 6 and the first partition 81 are separated by the middle plate 3 and the light-transmitting part 322 and there is no open cavity between them, the light source of the position light 6 will not bypass the middle plate 3 and the light-transmitting part 322 when it is lit, thereby improving the aesthetics of the taillight when it is lit.

[0035] In a preferred embodiment of the present invention, the inner wall of the reflector groove 311 is white, and the inner wall of the reflector groove 311 is uncoated and injection-molded with white optical patterns. The white optical patterns are used to uniformly reflect the light source to the lamp glass 1, improving the uniformity and brightness of the light source. Because the inner wall of the reflector groove 311 of the middle plate 3 of the taillight of the present invention is uncoated, there is no need to develop tooling and molds for plating aluminum or other metal reflective layers onto the inner wall of the reflector bowl, thereby reducing the manufacturing cost of the taillight.

[0036] like Figure 1-4 As shown, in a preferred embodiment of the present invention, a lamp mounting base 7 is also included. The lamp housing 2 has a lamp holder hole. The lamp mounting base 7 is mounted on the lamp housing 2 through the lamp holder hole. One end of the lamp mounting base 7 extends into the second cavity 82. The inner wall of the reflector groove 311 opposite to the lamp glass 1 has a lamp hole 312. The turn signal 4 and the brake light 5 are electrically connected to the lamp mounting base 7 through the lamp hole 312.

[0037] In a preferred embodiment of the present invention, the cross-section and longitudinal section of the inner wall of the reflector groove 311 opposite to the lamp glass 1 are both arc-shaped, and the lamp hole 312 is located at the apex of the arc, so that the light source is reflected uniformly.

[0038] like Figure 1-4 As shown, in a preferred embodiment of the present invention, the middle plate 3 includes a reflector bowl 31 and an annular connecting plate 32, the reflector groove 311 is located on the reflector bowl 31, and the annular connecting plate 32 surrounds the reflector bowl 31.

[0039] The outer edge of the reflector bowl 31 and the inner edge of the annular connecting plate 32 are integrally injection molded to facilitate mass production. The annular connecting plate 32 and the lamp housing 2 are detachably connected to facilitate assembly and maintenance.

[0040] Of course, the outer edge of the reflector bowl 31 and the inner edge of the annular connecting plate 32 are not limited to being integrally formed. For example, they can also be detachably connected. Those skilled in the art can choose the connection method between the reflector bowl 31 and the annular connecting plate 32 according to actual needs.

[0041] like Figure 1-4As shown, in a preferred embodiment of the present invention, the light-transmitting portion 322 is located on the annular connecting plate 32, and the shape of the light-transmitting portion 322 matches the shape of the position light 6, so that the light-transmitting portion 322 is located on the periphery of the turn light 4 and the brake light 5, close to the edge of the taillight, so as to indicate the position of the vehicle outline.

[0042] like Figure 1-4 As shown, in a preferred embodiment of the present invention, the annular connecting plate 32 is further provided with a non-transparent portion 323, and a light-transmitting portion 322 is located between the non-transparent portion 323 and the reflector bowl 31. Preferably, the light-transmitting portion 322 is milky white in color, achieving light transmission but opacity, thereby blocking the lamp mounting base 7, circuit board, wiring harness and position lamp 6 in the second cavity 82, and achieving an aesthetically pleasing design.

[0043] Of course, the color of the light-transmitting part 322 is not limited to milky white. Those skilled in the art can choose the color of the light-transmitting part 322 according to actual needs.

[0044] Preferably, the light-transmitting part 322, the non-light-transmitting part 323 and the reflective bowl 31 are integrally molded using a two-color injection molding process, eliminating the need for connecting structures and connectors, thereby reducing manufacturing costs.

[0045] like Figure 4 As shown, in a preferred embodiment of the present invention, the outer edge of the reflector bowl 31, the light-transmitting part 322, and the non-light-transmitting part 323 together form a groove 324 with the opening facing the lamp housing 2, and the position lamp 6 is located in the groove 324.

[0046] The outer edge of the reflector bowl 31 blocks the light path of the position lamp 6 from shining into the reflector groove 331, thereby avoiding light path interference.

[0047] like Figure 1 , 4 As shown, in a preferred embodiment of the present invention, the middle plate 3 has a plurality of connecting posts 321 on one side of the second cavity 82. The connecting posts 321 have threaded holes for connecting with screws. The lamp housing 2 has a through hole corresponding to the connecting posts 321. One end of the screw passes through the through hole and connects with the threaded hole to achieve a detachable connection, which is convenient for assembly and maintenance.

[0048] like Figure 4 As shown, the connecting post 321 is located on the back side of the non-transparent part 323. Of course, the connecting post 321 is not limited to being located only on the back side of the non-transparent part 323, but may also be located on the back side of the reflector bowl 31. Those skilled in the art can choose the position of the connecting post 321 according to actual needs.

[0049] like Figure 2 As shown, in a preferred embodiment of the present invention, the position light 6 is C-shaped, the notch of the position light 6 is used to avoid the connecting post 321, and the shape of the light-transmitting part 322 matches the shape of the position light 6.

[0050] Of course, the shape of the position light 6 is not limited to C-shape. For example, the shape of the position light 6 can also be ring-shaped or strip-shaped. Those skilled in the art can choose the shape of the position light 6 according to actual needs.

[0051] In a preferred embodiment of the present invention, the position light 6 is an LED light, which has the advantages of high efficiency and energy saving, long life, environmental protection and pollution-free, high color rendering and instant lighting.

[0052] Of course, the position light 6 is not limited to LED lights, and those skilled in the art can choose the type of position light according to actual needs.

[0053] like Figure 4 As shown, in a preferred embodiment of the present invention, the middle plate 3 is provided with multiple sets of mounting arms 313 on one side of the second cavity 82. Each set of mounting arms 313 includes a first arm 3131 and a second arm 3132. The position light 6 is located between the first arm 3131 and the second arm 3132, and the first arm 3131 and the second arm 3132 together clamp the position light 6. The position light 6 is detachably fixed to the back of the middle plate 3 by means of a metal plate and screws.

[0054] like Figure 4 As shown, multiple sets of mounting arms 313 are located on the outer edge surface of the reflector bowl 31, and position lights 6 are arranged on the mounting arms 313 around the outer edge surface of the reflector bowl 31.

[0055] In a preferred embodiment of the present invention, a desiccant 9 is also included. The desiccant 9 is pasted inside the second cavity 82. The lamp housing 2 has two ventilation holes to improve the dryness inside the cavity 8 and prevent fogging inside the cavity 8 from affecting the lighting.

[0056] In a preferred embodiment of the present invention, the middle plate 3 further includes two heat dissipation plates 33. The reflector groove 311 is located above the lamp hole 312 and has a heat dissipation opening 314. A part of the heat dissipation plate 33 extends into the reflector groove 311 through the heat dissipation opening 314, and the other part of the heat dissipation plate 33 is located in the second cavity 82. The heat in the reflector groove 311 is dissipated to the second cavity 82 through the heat dissipation plate 33, and exchanges heat with the outside temperature through the vent.

[0057] In a preferred embodiment of the present invention, the heat sink 33 is provided with heat dissipation grooves, and the groove walls of the heat dissipation grooves and the reflective grooves 311 together form a heat dissipation channel to improve heat dissipation efficiency.

[0058] like Figure 1 , 2As shown, in a preferred embodiment of the present invention, the lamp mounting base 7 includes a first lamp holder 71 and a second lamp holder 72. The lamp housing 2 has two lamp holder holes and at least one wiring hole, and the two lamp holder holes correspond to two lamp holes 312. The first lamp holder 71 and the second lamp holder 72 are respectively installed in the two lamp holder holes. One end of the turn signal 4 is installed on the first lamp holder 71, one end of the brake light 5 is installed on the second lamp holder 72, and the wiring harness of the position light 6 extends to the outside through the wiring hole.

[0059] The present invention also provides a vehicle, including a vehicle body and at least two taillights as described above, with the two taillights respectively mounted on both sides of the rear of the vehicle body. By employing the aforementioned taillights, the vehicle of the present invention achieves reduced manufacturing costs and avoids the problem of mutual interference between light paths.

[0060] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0061] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0062] In the description of this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, the embodiments of the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of the present invention should be included within the protection scope of the embodiments of the present invention.

Claims

1. A taillight, characterized in that, The device includes a lamp glass (1), a lamp housing (2), a middle plate (3), a turn signal (4), a brake light (5), and a position light (6). The lamp glass (1) and the lamp housing (2) together form a cavity (8). The middle plate (3) is disposed in the cavity (8), and the middle plate (3) and the lamp glass (1) together form a first partition (81). The middle plate (3) and the lamp housing (2) together form a second partition (82). The middle plate (3) has at least two reflective grooves (311) on one side of the middle plate (3) located in the first partition (81). The turn signal (4) and the brake light (5) are respectively disposed in the two reflective grooves (311). The middle plate (3) is provided with a light-transmitting part (322). The position light (6) is installed in the second partition (82) corresponding to the light-transmitting part (322). The middle plate (3) includes a reflector bowl (31) and an annular connecting plate (32). The reflector groove (311) is located on the reflector bowl (31). The annular connecting plate (32) surrounds the reflector bowl (31). The annular connecting plate (32) is also provided with a non-transparent part (323), and the transparent part (322) is located between the non-transparent part (323) and the reflector bowl (31). The lamp mounting base (7) is installed on the lamp housing (2), and one end of the lamp mounting base (7) extends into the second cavity (82). The reflector groove (311) is provided with a lamp hole (312). One end of the turn signal (4) and the brake light (5) respectively passes through the lamp hole (312) and is electrically connected to the lamp mounting base (7). The desiccant is pasted inside the second compartment. The lamp housing has two vent holes. The middle plate also includes two heat dissipation plates. The reflector groove is located above the lamp hole and has a heat dissipation vent. Part of the heat dissipation plate extends into the reflector groove through the heat dissipation vent, and the other part of the heat dissipation plate is located in the second compartment. The heat in the reflector groove is dissipated into the second compartment through the heat dissipation plate and exchanges heat with the outside temperature through the vent holes. The heat sink has heat dissipation grooves, and the groove walls of the heat dissipation grooves and the reflective grooves together form a heat dissipation channel.

2. The taillight according to claim 1, characterized in that, The light-transmitting part (322) is located on the annular connecting plate (32), and the shape of the light-transmitting part (322) matches the shape of the position lamp (6).

3. The taillight according to claim 1, characterized in that, The outer edge of the reflector bowl (31), the light-transmitting part (322) and the non-light-transmitting part (323) together form a groove (324) with the opening facing the lamp housing (2), and the position lamp (6) is located in the groove (324).

4. The taillight according to claim 1, characterized in that, The inner wall of the reflective groove (311) is uncoated and has a white optical pattern.

5. The taillight according to claim 1, characterized in that, The middle plate (3) is provided with multiple sets of mounting arms (313) on one side of the second cavity (82). Each set of mounting arms (313) includes a first arm (3131) and a second arm (3132). The position light (6) is located between the first arm (3131) and the second arm (3132), and the first arm (3131) and the second arm (3132) together clamp the position light (6).

6. The taillight according to claim 1, characterized in that, The middle plate (3) has multiple connecting posts (321) on one side of the second cavity (82). The connecting posts (321) have threaded holes for connecting with screws. The lamp housing (2) has a through hole corresponding to the connecting posts (321). One end of the screw passes through the through hole and connects with the threaded hole.

7. A vehicle, characterized in that, The vehicle includes a vehicle body and at least two taillights as described in any one of claims 1-6, wherein the two taillights are respectively mounted on both sides of the rear of the vehicle body.

Citation Information

Patent Citations

  • LED rear combination tail lamp

    CN208859525U