A single-lamp head dual-light guide car ambient light

Abstract

This invention provides a single-head, dual-light-guide automotive ambient light, which solves the problem that existing single-head, single-light-guide automotive ambient lights often require multiple single-head, single-light-guide units to achieve a continuous linear lighting effect. It includes a lamp head, a first light guide, and a second light guide. The lamp head has a first connecting part and a second connecting part. One end of the first light guide is connected to the first connecting part, and one end of the second light guide is connected to the second connecting part. A light-emitting component is located inside the lamp head, and the light emitted by the component can be transmitted to the first and second light guides respectively. Compared to the design of multiple single-head, single-light-guide ambient lights, this reduces the number of lamp heads and driving circuits used, thereby lowering manufacturing costs. The single-head, dual-light-guide structure is more compact, reducing the space occupied in the vehicle interior, simplifying wiring, and reducing the probability of malfunctions.

Description

Technical Field

[0001] This utility model belongs to the field of automotive electronic lighting technology and relates to a single-lamp-head dual-light-guide automotive ambient light. Background Technology

[0002] With the continuous advancement of the automotive industry and the increasing demands of consumers for driving comfort and personalized experiences, ambient lighting in automobiles, as an important component of interior design, is receiving increasing attention. It can create diverse in-car atmospheres, such as warm, romantic, or technologically advanced, through different lighting effects, significantly enhancing the user's riding experience.

[0003] Currently, the mainstream solution for automotive ambient lighting commonly found in the market adopts a single lamp head and single light guide design. This solution has obvious limitations when dealing with longer dimensions, especially large-span layouts in the dashboard and door panel areas: on the one hand, it is difficult to meet consumers' demand for a continuous linear ambient lighting effect; on the other hand, in order to achieve a continuous linear lighting effect, it is often necessary to install multiple ambient lights with single lamp heads and single light guides, which not only increases costs but also occupies limited space in the car, and also increases the complexity of wiring and the probability of failure. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a single-lamphead dual-light-guide automotive ambient light that occupies a small space.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A single-head dual-light-guide automotive ambient light includes a head, a first light guide, and a second light guide. The head has a first connecting part and a second connecting part. One end of the first light guide is connected to the first connecting part, and one end of the second light guide is connected to the second connecting part. The head has a light-emitting component, and the light emitted by the light-emitting component can be transmitted to the first light guide and the second light guide respectively.

[0007] Both the first and second light guides are made of transparent or semi-transparent light-guiding materials, such as polymethyl methacrylate (PMMA) and polycarbonate (PC). Microstructures, such as tiny pits / tiny protrusions, are formed on the surfaces of the first and second light guides. These microstructures are used to scatter light, allowing light to be emitted evenly from the sides or ends of the first and second light guides, creating a soft and uniform ambient lighting effect.

[0008] The ends of the first and second light guides are inserted into the first or second connecting part and fixed by means of sealant or buckles to ensure that the light does not leak.

[0009] In the aforementioned single-head dual-light-guide automotive ambient light, the light-emitting component includes a driving circuit board disposed inside the lamp head, a first light-emitting diode and a second light-emitting diode disposed on the driving circuit board, one end face of the first light guide being disposed facing the first light-emitting diode, and one end face of the second light guide being disposed facing the second light-emitting diode.

[0010] The driver circuit board is used to control parameters such as the light emission color, brightness, and flashing frequency of the LEDs. The driver circuit board is equipped with a communication interface (LIN / CAN communication) for connecting to the vehicle's onboard control system. Light emitted by the first LED can be transmitted to the first light guide, and light emitted by the second LED can be transmitted to the second light guide.

[0011] In the aforementioned single-head dual-light-guide automotive ambient light, the first connecting part is provided with a first through hole for the first light guide to pass through, and a first anti-detachment structure is provided between the first through hole and the first light guide; the second connecting part is provided with a second through hole for the second light guide to pass through, and a second anti-detachment structure is provided between the second through hole and the second light guide.

[0012] The inner surface of the first through hole is configured to mate with the outer surface of the first light guide, and the inner surface of the second through hole is configured to mate with the outer surface of the second light guide. This can improve the stability of the first and second light guides. At the same time, the first light guide can be detached through the first anti-detachment structure, and the second light guide can be detached through the second anti-detachment structure.

[0013] In the aforementioned single-head dual-light-guide automotive ambient light, the first anti-detachment structure includes two first slots that are disposed opposite to each other on the inner wall of the first through hole and extend along the length direction of the first through hole, a first spring piece disposed in the first slot, and a first protrusion disposed on the first light guide. Each first slot is provided with a first spring piece, and each first spring piece is provided with a corresponding first protrusion. When the first light guide is inserted into the first through hole, the first protrusion squeezes the first spring piece, causing the first spring piece to open outward. When the first light guide is inserted into place, the first spring piece is reset under its own elastic force and abuts against the side of the first protrusion away from the light-emitting component.

[0014] In the aforementioned single-lamp dual-light-guide automotive ambient light, at least one first anti-rotation groove extending along the length direction of the first through hole is also provided on the inner wall of the first through hole, and a first anti-rotation protrusion that can extend into the first anti-rotation groove is provided on the first light guide.

[0015] In the aforementioned single-head dual-light-guide automotive ambient light, the second anti-detachment structure includes two second slots that are disposed opposite to each other on the inner wall of the second through hole and extend along the length of the second through hole, a second spring sheet disposed in the second slot, and a second protrusion disposed on the second light guide. Each second slot is provided with a second spring sheet, and each second spring sheet is provided with a corresponding second protrusion. When the second light guide is inserted into the second through hole, the second protrusion squeezes the second spring sheet, causing the second spring sheet to open outward. When the second light guide is inserted into place, the second spring sheet is reset under its own elastic force and abuts against the side of the second protrusion away from the light-emitting component.

[0016] In the aforementioned single-head dual-light-guide automotive ambient light, at least one second anti-rotation groove extending along the length direction of the second through hole is also provided on the inner wall of the second through hole, and a second anti-rotation protrusion that can extend into the second anti-rotation groove is provided on the second light guide.

[0017] In the aforementioned single-head dual-light-guide automotive ambient light, the inner wall of the first through-hole is provided with a reflective layer, and the inner wall of the second through-hole is provided with a reflective layer. This is used to improve the light transmission efficiency.

[0018] In the aforementioned single-head dual-light-guide automotive ambient light, a heat dissipation structure is provided within the housing, which is in close contact with both the first and second light-emitting diodes (LEDs). This structure dissipates the heat generated by the LEDs, ensuring their normal operating lifespan. The heat dissipation structure can take the form of a heat sink, heat dissipation fins, or heat pipes.

[0019] Compared with existing technologies, this single-lamp-head dual-light-guide automotive ambient light has the following advantages:

[0020] By simultaneously driving dual light guides with a single lamp head, various lighting combinations and effects can be achieved, such as dual-color gradients and alternating flashing, greatly enriching the expressive forms of automotive ambient lighting and meeting consumers' needs for personalized in-car ambiance. Compared to ambient lighting designs with multiple single lamp heads and single light guides, this reduces the number of lamp heads and driving circuits used, thereby lowering manufacturing costs. The single-lamp-head dual-light-guide structure is more compact, reducing the space occupied in the vehicle interior and simplifying wiring, thus reducing the probability of malfunctions. Through connection with the vehicle's onboard control system, intelligent control of the ambient lighting is achieved, automatically adjusting the lighting effects according to different scenarios and needs, enhancing the technological feel and comfort of the driving experience. Attached Figure Description

[0021] Figure 1 This is a structural diagram of a single-lamp head dual-light guide car ambient light.

[0022] Figure 2 This is an exploded view of a single-lamp head dual-light guide car ambient light.

[0023] Figure 3This is a partial cross-sectional view of a single-lamp head dual-light guide automotive ambient light.

[0024] Figure 4 This is a partial cross-sectional view of a single-lamp head dual-light guide automotive ambient light.

[0025] In the figure, 1 is the lamp head; 2 is the first light guide; 3 is the second light guide; 4 is the first connecting part; 5 is the second connecting part; 6 is the driving circuit board; 7 is the first light-emitting diode; 8 is the second light-emitting diode; 9 is the first through hole; 10 is the first spring; 11 is the first protrusion; 12 is the first anti-rotation groove; 13 is the first anti-rotation protrusion; and 14 is the heat dissipation structure. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] like Figure 1 The single-head dual-light-guide car ambient light shown includes a head 1, a first light guide 2, and a second light guide 3. A first connecting part 4 and a second connecting part 5 are provided on the same side of the head 1. One end of the first light guide 2 is connected to the first connecting part 4, and one end of the second light guide 3 is connected to the second connecting part 5. A light-emitting component is provided inside the head 1, and the light emitted by the light-emitting component can be transmitted to the first light guide 2 and the second light guide 3 respectively.

[0028] In this embodiment, the first light guide 2 and the second light guide 3 are cylindrical and both are made of transparent or semi-transparent light guide materials, such as polymethyl methacrylate (PMMA) or polycarbonate (PC). Microstructures, such as tiny pits / protrusions, are provided on the surfaces of the first light guide 2 and the second light guide 3. These microstructures are used to scatter light, allowing light to be emitted uniformly from the sides or ends of the first light guide 2 and the second light guide 3, creating a soft and uniform ambient lighting effect. The ends of the first light guide 2 and the second light guide 3 are inserted into the first connecting part 4 or the second connecting part 5 and fixed by means of sealant or clips to ensure that light does not leak.

[0029] like Figure 2 and Figure 3 As shown, the first connecting part 4 is provided with a first through hole 9 for the first light guide 2 to pass through, and a first anti-disconnection structure is provided between the first through hole 9 and the first light guide 2; the second connecting part 5 is provided with a second through hole for the second light guide 3 to pass through, and a second anti-disconnection structure is provided between the second through hole and the second light guide 3. The inner wall of the first through hole 9 is provided with a reflective layer, and the inner wall of the second through hole is provided with a reflective layer to improve the light transmission efficiency.

[0030] The inner surface of the first through hole 9 is configured to cooperate with the outer surface of the first light guide 2, and the inner surface of the second through hole is configured to cooperate with the outer surface of the second light guide 3. This can improve the stability of the first light guide 2 and the second light guide 3. At the same time, the first light guide 2 can be detached through the first anti-detachment structure, and the second light guide 3 can be detached through the second anti-detachment structure.

[0031] like Figure 3 As shown, the first anti-detachment structure includes two first slots that are disposed opposite to each other on the inner wall of the first through hole 9 and extend along the length of the first through hole 9, a first spring piece 10 disposed in the first slot, and a first protrusion 11 disposed on the first light guide 2. Each first slot is provided with a first spring piece 10, and each first spring piece 10 is provided with a corresponding first protrusion 11. When the first light guide 2 is inserted into the first through hole 9, the first protrusion 11 squeezes the first spring piece 10 to make the first spring piece 10 open outward. When the first light guide 2 is inserted into place, the first spring piece 10 is reset under its own elastic force and abuts against the side of the first protrusion 11 away from the light-emitting component.

[0032] like Figure 4 As shown, the inner wall of the first through hole 9 is also provided with two first anti-rotation grooves 12 extending along the length direction of the first through hole 9, and the first optical guide 2 is provided with a first anti-rotation protrusion 13 that can extend into the first anti-rotation groove 12.

[0033] The second anti-detachment structure includes two second slots located opposite each other on the inner wall of the second through hole and extending along the length of the second through hole, a second spring piece located within the second slot, and a second protrusion located on the second light guide 3. Each second slot contains a second spring piece, and each second spring piece corresponds to a second protrusion. When the second light guide 3 is inserted into the second through hole, the second protrusion presses against the second spring piece, causing the second spring piece to open outward. After the second light guide 3 is inserted into place, the second spring piece resets under its own elastic force and abuts against the side of the second protrusion away from the light-emitting component. At least one second anti-rotation groove extending along the length of the second through hole is also provided on the inner wall of the second through hole, and the second light guide 3 is provided with a second anti-rotation protrusion that can extend into the second anti-rotation groove.

[0034] like Figure 2As shown, the light-emitting component includes a driver circuit board 6 disposed within the lamp head 1, a first light-emitting diode 7 and a second light-emitting diode 8 disposed on the driver circuit board 6, one end face of the first light guide 2 facing the first light-emitting diode 7, and one end face of the second light guide 3 facing the second light-emitting diode 8. The driver circuit board 6 is used to control parameters such as the light emission color, brightness, and flashing frequency of the light-emitting diodes. The driver circuit board 6 is provided with a communication interface, which can be connected to the vehicle's onboard control system via wired or wireless means to achieve intelligent control of the ambient lighting. For example, the ambient lighting effect can be automatically adjusted according to different driving modes (such as sport mode, comfort mode, energy-saving mode, etc.), or the light color and brightness can be synchronously changed according to the rhythm and melody of music.

[0035] like Figure 2-4 As shown, a heat dissipation structure 14 is provided inside the housing. The heat dissipation structure 14 is in close contact with the first light-emitting diode 7 and the second light-emitting diode 8, respectively, to dissipate the heat generated by the light-emitting diodes and ensure the normal working life of the light-emitting diodes. The heat dissipation structure 14 can take the form of a heat sink, heat dissipation fins, or heat pipe, etc.

[0036] The first LED 7 and the second LED 8 are soldered onto the driver circuit board 6, and the heat dissipation structure 14 is bonded to the first LED 7 and the second LED 8 to form a whole. They are then installed inside the lamp head 1 and secured with screws or clips. A first connecting part 4 and a second connecting part 5 are machined at one end of the lamp head 1, and reflective material is applied to their inner walls to form a reflective layer. The ends of the first light guide 2 and the second light guide 3 are cleaned and processed, then inserted into the first connecting part 4 and the second connecting part 5 respectively, and sealed with sealant to ensure a tight connection and prevent light leakage. The communication interface on the driver circuit board 6 is connected to the vehicle's in-vehicle control system via wires or a wireless module, completing the assembly of the entire ambient light.

[0037] When the car is started and the ambient lighting function is activated, the vehicle control system sends a control signal to the drive circuit board 6. The drive circuit board 6 then controls the first LED 7 and the second LED 8 to emit light according to the received signal. The light emitted by the first LED 7 and the second LED 8 is transmitted to the first light guide 2 and the second light guide 3 through the first connecting part 4 and the second connecting part 5. Inside the first light guide 2 and the second light guide 3, the light is scattered by the microstructure, thus emitting light evenly from the sides or ends of the light guides, forming a soft and uniform ambient lighting effect. By controlling parameters such as the emission color, brightness, and flashing frequency of the first LED 7 and the second LED 8, various lighting combinations and effects can be achieved, such as constant single-color illumination, dual-color gradient, and alternating flashing.

[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A single base dual light guide automotive ambient light, characterized in that, The lamp includes a lamp head (1), a first light guide (2) and a second light guide (3). The lamp head (1) is provided with a first connecting part (4) and a second connecting part (5). One end of the first light guide (2) is connected to the first connecting part (4), and one end of the second light guide (3) is connected to the second connecting part (5). The lamp head (1) is provided with a light-emitting component, and the light emitted by the light-emitting component can be transmitted to the first light guide (2) and the second light guide (3) respectively.

2. The single-candelabra double light guide automotive ambiance light of claim 1, wherein, The light-emitting component includes a driving circuit board (6) disposed in the lamp head (1), a first light-emitting diode (7) and a second light-emitting diode (8) disposed on the driving circuit board (6), one end face of the first light guide (2) is disposed facing the first light-emitting diode (7), and one end face of the second light guide (3) is disposed facing the second light-emitting diode (8).

3. The single-lamp-head dual-light-guide automotive ambient light according to claim 1, characterized in that, The first connecting part (4) is provided with a first through hole (9) through which the first light guide (2) passes, and a first anti-detachment structure is provided between the first through hole (9) and the first light guide (2); the second connecting part (5) is provided with a second through hole through which the second light guide (3) passes, and a second anti-detachment structure is provided between the second through hole and the second light guide (3).

4. The single-can dual-light guide ambient light of claim 3, wherein, The first anti-detachment structure includes two first slots that are disposed opposite to each other on the inner wall of the first through hole (9) and extend along the length of the first through hole (9), a first spring piece (10) disposed in the first slot, and a first protrusion (11) disposed on the first light guide (2). Each first slot is provided with a first spring piece (10), and each first spring piece (10) is provided with a corresponding first protrusion (11). When the first light guide (2) is inserted into the first through hole (9), the first protrusion (11) squeezes the first spring piece (10) to make the first spring piece (10) open outward. When the first light guide (2) is inserted into place, the first spring piece (10) resets under its own elastic force and abuts against the side of the first protrusion (11) away from the light-emitting component.

5. The single-can dual-light guide ambient light of claim 4, wherein, The inner wall of the first through hole (9) is also provided with at least one first anti-rotation groove (12) extending along the length direction of the first through hole (9), and the first light guide (2) is provided with a first anti-rotation protrusion (13) that can extend into the first anti-rotation groove (12).

6. The single-fixture dual-light guide automotive ambiance light of claim 3, wherein, The second anti-detachment structure includes two second slots that are disposed opposite to each other on the inner wall of the second through hole and extend along the length of the second through hole, a second spring sheet disposed in the second slot, and a second protrusion disposed on the second light guide (3). Each second slot is provided with a second spring sheet, and each second spring sheet is provided with a corresponding second protrusion. When the second light guide (3) is inserted into the second through hole, the second protrusion squeezes the second spring sheet to make the second spring sheet open outward. When the second light guide (3) is inserted into place, the second spring sheet is reset under its own elastic force and abuts against the side of the second protrusion away from the light-emitting component.

7. The single-fixture dual-light guide automotive ambiance light of claim 6, wherein, The inner wall of the second through hole is also provided with at least one second anti-rotation groove extending along the length direction of the second through hole, and the second light guide (3) is provided with a second anti-rotation protrusion that can extend into the second anti-rotation groove.

8. The single-fixture dual-light guide automotive ambiance light of claim 3, wherein, The inner wall of the first through hole (9) is provided with a reflective layer, and the inner wall of the second through hole is provided with a reflective layer.

9. The single-fixture dual-light guide automotive ambiance light of claim 2, wherein, The lamp cap (1) is internally provided with a heat dissipation structure (14), which is in close contact with the first light emitting diode (7) and the second light emitting diode (8) respectively.

Images