Ultrathin vehicle logo lamp

Abstract

The ultrathin car logo lamp comprises a lamp shell, a light guide plate and a light-emitting mask, the light guide plate and the light-emitting mask are both installed on the lamp shell, the light-emitting mask is located on the side, away from the lamp shell, of the light guide plate, PCBAs integrating a plurality of LED lamp beads are arranged at the two ends of the light guide plate, and the end faces of the two ends of the light guide plate are light inlet faces. The light-emitting faces of the LED lamp beads on the PCBA face the corresponding light inlet face of the light guide plate, the light outlet face of the light guide plate right faces the light inlet face of the light-emitting mask, and the light-emitting mask is provided with a light-permeable car logo pattern. By adopting the ultrathin vehicle logo lamp, the uniformity of emergent light can be ensured by using a smaller number of LEDs, and the production cost is reduced. Meanwhile, the requirement for the longitudinal space of the whole lamp is reduced, the number of parts is small, assembling is easy, and the requirement for light weight is met.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle logo lights, in particular to an ultra-thin vehicle logo light. Background Art

[0002] Traditional vehicle logo lights generally use two lighting methods. One is direct LED lighting. To ensure uniform lighting, multiple LEDs are required, which is costly. Furthermore, the distance between the LEDs and the lampshade must be large, resulting in a large depth and space requirement for the entire lamp. The other lighting method uses a reflector bowl system, where the light emitted by the LED is reflected and then illuminated by the vehicle logo. This method requires multiple LEDs, thick-walled optical components, and aluminum plating or high-reflective materials, which is costly, complex to assemble, and heavy for the entire lamp. Utility Model Content

[0003] In order to solve the technical problems of high cost and large space occupied by vehicle logo lights, the utility model provides an ultra-thin vehicle logo light.

[0004] The technical solution is as follows:

[0005] The present application relates to an ultra-thin vehicle logo lamp, comprising a lamp housing and a light guide plate and a light-emitting mask both mounted on the lamp housing, the light-emitting mask being located on a side of the light guide plate away from the lamp housing, a PCBA integrated with a plurality of LED lamp beads being provided at both ends of the light guide plate, the side edges at both ends of the light guide plate being light-incoming surfaces, the light-emitting surfaces of the LED lamp beads on each of the PCBAs facing the corresponding light-incoming surfaces of the light guide plate, the large surface of the light-emitting mask close to the light guide plate being its light-incoming surface, the large surface of the light guide plate facing the light-incoming surface of the light-emitting mask being its light-emitting surface, and a light-transmitting vehicle logo graphic being provided on the light-emitting mask.

[0006] The use of these ultra-thin vehicle logo lights ensures uniform light output by using fewer LEDs, reducing production costs. At the same time, the vertical space required for the entire lamp is reduced, the number of parts is small, and assembly is simple, meeting the demand for lightweighting.

[0007] In some embodiments, the light-emitting mask is a milky white PC diffuser.

[0008] In some embodiments, the vehicle logo graphic is protrudingly formed on a surface of the light-emitting mask that is away from the light guide plate.

[0009] In some embodiments, the LED lamp beads on the PCBA are arranged linearly along the extension direction of the light incident surface of the light guide plate.

[0010] In some embodiments, an open groove is provided on the lamp housing, and a plurality of supporting protrusions are provided at the bottom of the open groove, and the supporting protrusions jointly support a side surface of the light guide plate close to the bottom of the open groove.

[0011] In some embodiments, a plurality of snap-fit ​​protrusions are provided on the groove wall of the opening groove, and a positioning protrusion corresponding to each snap-fit ​​protrusion is provided on the side of the light guide plate away from the bottom of the opening groove, and each positioning protrusion is snap-fitted with the corresponding snap-fit ​​protrusion.

[0012] In some embodiments, the PCBAs located at both ends of the light guide plate are connected via a wiring harness, and the lamp housing is provided with a wiring harness through-hole for the wiring harness to pass through.

[0013] In some embodiments, the lamp housing is provided with an air hole, and an air permeable membrane is provided in the air hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the utility model and the vehicle body;

[0015] Figure 2 for Figure 1 AA cross-section of

[0016] Figure 3 It is a structural diagram of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the lamp housing, light guide plate and PCBA;

[0018] Figure 5 This is a structural diagram of the lamp housing and PCBA. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0020] like Figures 1 to 5 As shown, an ultra-thin vehicle logo light mainly includes a lamp housing 1, a PCBA 2, a light guide plate 3, a light-emitting mask 4 and a wiring harness 5.

[0021] like Figure 2 and Figure 4 As shown, the light guide plate 3 is a plate-like structure, preferably made of transparent PMMA. One side of the light guide plate 3 is the light-emitting surface, and the other side has an optical pattern. Several positioning protrusions 31 are provided on the edge of the light-emitting surface of the light guide plate 3. The light guide plate 3 not only ensures uniform light emission but is also flexible to accommodate vehicle logo lights of different shapes.

[0022] like Figures 2 to 5As shown, a number of LED lamp beads 21 are integrated on PCBA2, and a PCBA2 is provided at each end of the light guide plate 3. The side edges of both ends of the light guide plate 3 are light-incoming surfaces, and the light-emitting surfaces of the LED lamp beads 21 on each PCBA2 are facing the corresponding light-incoming surfaces of the light guide plate 3. The light guide plate 3 adopts the method of taking in light from both ends, avoiding the high demand for the longitudinal space of the entire lamp by the direct projection method of LED. The LED lamp beads 21 on PCBA2 are arranged linearly along the extension direction of the light-incoming surface of the light guide plate 3. The number of LED lamp beads 21 can be increased or decreased according to the brightness requirements of the vehicle logo light. The PCBA2 located at both ends of the light guide plate 3 is connected by a wiring harness 5, and the wiring harness 5 is covered with a wire tube to protect the wiring harness 5.

[0023] like Figures 2 to 5 As shown, the lamp housing 1 is provided with an open slot 11, into which the PCBA 2 and light guide plate 3 are mounted. The shape of the open slot 11 is compatible with the PCBA 2 and light guide plate 3, resulting in a compact installation structure within the lamp housing 1 and a small overall footprint. The bottom of the open slot 11 is provided with several support protrusions 111, each of which supports a side surface of the light guide plate 3 near the bottom of the open slot 11. The support protrusions 111 not only position the light guide plate 3 but also provide space for the wiring harness 5 at the bottom of the open slot 11. In this embodiment, the support protrusions 111 are located near the bottom of the open slot 11 near the slot wall and are spaced apart along the length of the open slot 11, ensuring that the support protrusions 111 provide more stable and reliable support for the light guide plate 3. The slot wall of the open slot 11 is provided with several engaging protrusions 112, each corresponding to each positioning protrusion 31. Each positioning protrusion 31 engages with a corresponding engaging protrusion 112. The engaging protrusion 112 and the supporting protrusion 111 cooperate with each other to limit the position of the light guide plate 3 .

[0024] Furthermore, the lamp housing 1 is provided with several mounting lugs 14, each with a mounting hole, to facilitate installation of the lamp housing 1. The lamp housing 1 is provided with a wiring harness hole 12 for the wiring harness 5 to pass through. A plug is provided on the wiring harness hole 12, which has a through hole for the wiring harness 5 to pass through. The wiring harness 5 has an interference fit with the corresponding through hole, ensuring the sealing of the lamp housing 1. The lamp housing 1 is also provided with a vent hole 13, which is equipped with a breathable membrane to facilitate heat dissipation.

[0025] like Figures 1 to 3As shown, the luminous mask 4 is located on the side of the light guide plate 3 away from the lamp housing 1, and is snapped into the notch of the opening slot 11 of the lamp housing 1. The large surface of the luminous mask 4 close to the light guide plate 3 is its light-incoming surface, and the large surface of the light guide plate 3 facing the light-incoming surface of the luminous mask 4 is its light-emitting surface. The light-emitting surface of the light guide plate 3 faces the light-incoming surface of the luminous mask 4. A light-transmitting vehicle logo graphic 41 is provided on the luminous mask 4. In this embodiment, the luminous mask 4 is made of a milky white diffusion material, preferably a milky white PC diffusion plate. The luminous mask 4 and the vehicle logo graphic 41 are integrally formed. This ordinary single-color injection molding method is simple to mold, fast to mold, and has low mold and injection molding costs. In addition, the internal structure of the vehicle logo lamp cannot be seen through the luminous mask 4 when it is lit or not. The car logo graphic 41 is preferably protrudingly formed on the side surface of the light-emitting mask 4 away from the light guide plate 3, and a through hole adapted to the car logo graphic 41 is provided on the vehicle body B. The car logo graphic 41 passes through the corresponding through hole on the vehicle body B, making the three-dimensional effect of the car logo light better.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. An ultra-thin vehicle logo lamp, comprising a lamp housing (1), a light guide plate (3) and a light-emitting mask (4) both mounted on the lamp housing (1), wherein the light-emitting mask (4) is located on a side of the light guide plate (3) away from the lamp housing (1), and characterized in that: PCBAs (2) integrated with a plurality of LED lamp beads (21) are provided at both ends of the light guide plate (3); the side edges of both ends of the light guide plate (3) are light-incoming surfaces; the light-emitting surfaces of the LED lamp beads (21) on each PCBA (2) face the corresponding light-incoming surface of the light guide plate (3); the large surface of the light-emitting mask (4) close to the light guide plate (3) is its light-incoming surface; the large surface of the light guide plate (3) facing the light-incoming surface of the light-emitting mask (4) is its light-emitting surface; and a light-transmitting vehicle logo pattern (41) is provided on the light-emitting mask (4).

2. The ultra-thin vehicle logo light according to claim 1, characterized in that: The luminous mask (4) is a milky white PC diffusion plate.

3. The ultra-thin vehicle logo light according to claim 1, characterized in that: The vehicle logo graphic (41) is protrudingly formed on a surface of the light-emitting mask (4) that is away from the light guide plate (3).

4. The ultra-thin vehicle logo light according to claim 1, characterized in that: The LED lamp beads (21) on the PCBA (2) are arranged linearly along the extension direction of the light-incoming surface of the light guide plate (3).

5. The ultra-thin vehicle logo light according to claim 1, characterized in that: An opening groove (11) is provided on the lamp housing (1), and a plurality of supporting protrusions (111) are provided at the bottom of the opening groove (11), and the supporting protrusions (111) jointly support a side surface of the light guide plate (3) close to the bottom of the opening groove (11).

6. The ultra-thin vehicle logo light according to claim 5, characterized in that: A plurality of snap-fit ​​protrusions (112) are provided on the groove wall of the opening groove (11); and positioning protrusions (31) corresponding to the snap-fit ​​protrusions (112) are provided on a surface of the light guide plate (3) away from the groove bottom of the opening groove (11); and each positioning protrusion (31) is snap-fitted with the corresponding snap-fit ​​protrusion (112).

7. The ultra-thin vehicle logo light according to claim 1, characterized in that: The PCBAs (2) located at both ends of the light guide plate (3) are connected via a wire harness (5), and a wire harness through hole (12) for the wire harness (5) to pass through is provided on the lamp housing (1).

8. The ultra-thin vehicle logo light according to claim 1, characterized in that: The lamp housing (1) is provided with an air hole (13), and an air permeable membrane is provided in the air hole (13).

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