Automobile side turn signal integrated with ADS function

Abstract

The utility model discloses an automobile side turn signal lamp integrated with ADS function, including face shield and lamp stand, face shield installs on the lamp stand, and the front surface of face shield is equipped with the light transmission part, and the light transmission part is equipped with the light guide strip between face shield and lamp stand. The left side of lamp stand is equipped with the cavity, and the middle position of cavity is installed with the aluminum circuit board, and the heat dissipation surface of aluminum circuit board and the inner wall surface of cavity leave the interval of 0.5 to 3mm, and aluminum circuit board is equipped with LED, and LED is aligned with the one end of light guide strip. The structure is installed in the cavity on the lamp stand, and the core heating element aluminum circuit board is installed in it, and makes its heat dissipation surface and cavity inner wall keep interval, and effectively utilizes the heat air ascending principle, and forms the efficient heat dissipation channel. In combination with the excellent heat conductivity of aluminum substrate itself, can quickly spread the heat of LED to the surrounding air, significantly reduced the working temperature, thereby prolonged the service life of the lamp, simplified the structure, reduced the production cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to an automotive side turn signal with integrated ADS function. Background Technology

[0002] As a crucial signal indicator device for vehicles, the stability and lifespan of automotive turn signals directly impact driving safety. With the widespread application of LED technology, automotive turn signals commonly use light-emitting diodes (LEDs) as the light source, offering advantages such as low energy consumption, fast response, and long lifespan. However, LEDs generate a significant amount of heat during operation. Poor heat dissipation can lead to accelerated light decay, color temperature shift, and even device damage, affecting the reliability and lifespan of the turn signal.

[0003] Various heat dissipation structure designs for automotive lighting fixtures exist in the prior art. For example, Chinese patent application number CN202320852707.X discloses an automotive lighting fixture integrating an autonomous driving indicator light and a side turn signal, including a housing, a transparent cover, a heat sink, a circuit board, and a light source unit, wherein the heat sink is located on the back of the circuit board and dissipates heat through the housing. Although this structure has a certain heat dissipation capability, it still has the following shortcomings: First, the heat sink is tightly attached to the circuit board, and heat is mainly dissipated through conduction, resulting in limited heat dissipation efficiency; second, the internal space of the lighting fixture is sealed, resulting in poor air circulation and heat accumulation, which affects the long-term stable operation of the LED; third, the structural layout is relatively traditional and fails to fully utilize the internal space of the lamp body for optimized heat dissipation design, making it particularly unsuitable for compact automotive lighting fixtures.

[0004] Therefore, it is necessary to improve the structure of existing automotive turn signals and provide an integrated ADS automotive side turn signal with better heat dissipation, a more reasonable structure, and easier installation, in order to improve its operational stability and service life. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a car side turn signal with integrated ADS function that has better heat dissipation, reasonable structure and easy installation, so as to improve its working stability, service life and reduce cost.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A side turn signal for automobiles with integrated ADS function is provided, including a mask and a lamp holder. The mask is mounted on the lamp holder, and the front surface of the mask has a light-transmitting portion. A light guide strip is also provided between the mask and the lamp holder. A cavity is provided on the left side of the lamp holder, and an aluminum circuit board is installed in the middle of the cavity. The heat dissipation surface of the aluminum circuit board is spaced 0.5 to 3 mm from the inner wall of the cavity. An LED is provided on the aluminum circuit board, and the LED is aligned with one end of the light guide strip. The aluminum circuit board is electrically connected to the automobile ADS control unit to receive control signals and drive the LED to display the autonomous driving status signal.

[0007] Specifically, the LED includes at least one blue-green LED and one amber LED, wherein the blue-green LED is used to display the autonomous driving mode status and the amber LED is used to display the turn signal status.

[0008] Specifically, the upper and lower walls of the cavity are respectively provided with two clamping blocks, which are clamped on the left and right surfaces of the aluminum circuit board.

[0009] Furthermore, the lamp holder has a light guide strip recess, and one side surface of the light guide strip is placed in the light guide strip recess.

[0010] Furthermore, the front surface of the mask is provided with at least two horizontal stripes, which are distributed on the upper and lower sides of the light-transmitting part.

[0011] Furthermore, the back wall of the cavity is provided with multiple limiting blocks, and the edge of the aluminum circuit board is placed on the limiting blocks.

[0012] Specifically, the horizontal bar is integrally formed with the mask, and the horizontal bar is used to be mounted on the car.

[0013] Furthermore, the cavity has multiple ventilation holes on its sidewalls, which are connected to the cavity's interior and external environment.

[0014] Furthermore, the surface of the recessed area of ​​the light guide strip is provided with a highly reflective coating.

[0015] Specifically, the distance between the heat dissipation surface of the aluminum circuit board and the inner wall of the cavity is 0.5 to 3 mm.

[0016] The beneficial effects of this utility model are as follows: 1. This structure, by setting a cavity in the lamp holder structure, installs the core heating element, an aluminum circuit board, within it, maintaining a 0.5-3mm gap between its heat dissipation surface and the inner wall of the cavity. This effectively utilizes the principle of hot air rising, forming a highly efficient heat dissipation channel. Combined with the excellent thermal conductivity of the aluminum substrate itself, it can quickly dissipate the heat generated by the LED into the surrounding air, significantly reducing the operating temperature, thereby effectively delaying light decay and extending the lifespan of the lamp. Simultaneously, this structure simplifies traditional heat dissipation design, reduces the use of additional heat dissipation components, and lowers material costs and assembly difficulty. 2. This structure, through the synergistic action of clamping blocks and limiting blocks, achieves precise positioning and stable clamping of the aluminum circuit board within the cavity, ensuring sufficient heat dissipation distance and improving the product's reliability under vehicle vibration environments. The recessed design of the light guide strip also makes the optical path structure more stable. 3. The one-piece molded horizontal strip on the mask strengthens the structure and facilitates integration with the car body. Optional ventilation holes further promote airflow, resulting in better passive heat dissipation. Fourth, by integrating the ADS function into the side turn signal and using LEDs of different colors to display the autonomous driving status and turn signal, the function is integrated, reducing the vehicle wiring harness and installation space, which is in line with the development trend of automotive electronic integration. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings.

[0018] Figure 1 This is a schematic diagram of the present invention.

[0019] Figure 2 for Figure 1 A schematic diagram of its decomposed structure.

[0020] Figure 3 This is a schematic diagram of the mask structure.

[0021] Explanation of reference numerals in the attached drawings: 1. Mask 1, 101. Transmitting part 101, 102. Lamp holder 2, 201. Cavity 202. Recessed part of light guide strip 202. Clamping block 203. Limiting block 204. Aluminum circuit board 3. LED 301. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] like Figures 1 to 3As shown, the present invention provides a car side turn signal with integrated ADS function, which mainly includes a mask 1, a lamp holder 2, an aluminum circuit board 3, and a light guide strip not shown separately in the figure.

[0024] The face mask 1 is typically made of transparent or translucent plastic material (such as PC or PMMA) and is fixed to the lamp holder 2 by means of clips or ultrasonic welding. The front surface of the face mask 1 has a light-transmitting part 101 mainly used for light emission. To further enhance structural strength and facilitate installation with the vehicle body, the front surface of the face mask 1 also has multiple horizontal strips 102. These horizontal strips 102 are preferably integrally formed with the face mask 1 by injection molding and are distributed on the upper and lower sides of the light-transmitting part 101.

[0025] The lamp holder 2, serving as the main supporting structure, is typically made of heat-resistant engineering plastics (such as PPA or PBT). A notable structural feature is that the left side is taller than the right side, creating an asymmetrical overall shape. A cavity 201 is located at the higher left side of the lamp holder 2. This cavity 201 is used to house the core heating element. Furthermore, the lamp holder 2 also has a light guide recess 202 for fixing and positioning the light guide.

[0026] The aluminum circuit board 3 (i.e., the aluminum substrate) is fixedly installed in the center of the cavity 201. An LED 301, serving as a light source, is soldered onto it. The mounting method of the aluminum circuit board 3 ensures that a gap of 0.5-3mm is maintained between its main heat dissipation surface (usually the back side and / or the large copper foil surface) and the inner wall surface of the cavity 201 (especially the back wall surface), thereby forming a heat dissipation channel surrounding the circuit board, facilitating airflow and heat dissipation.

[0027] The aluminum circuit board 3 is electrically connected to the vehicle's ADS control unit via a connector, receives control signals, and drives different LEDs to display corresponding status information.

[0028] The light emitted by LED 301 is directly aligned with and incident on one end of the light guide strip located between the mask 1 and the lamp holder 2. The light guide strip directs the light to the light-transmitting part 101, achieving a uniform surface light emission effect. LED 301 includes at least one blue-green LED and one amber LED, wherein the blue-green LED is used to indicate that the vehicle is in autonomous driving mode, and the amber LED is used to display the traditional turn signal function.

[0029] To achieve stable and reliable fixation of the aluminum circuit board 3 and ensure its distance from the inner wall of the cavity 201, this utility model provides several preferred fixing structures: Clamping and fixing: Multiple clamping blocks 203 are integrally formed on the upper and lower walls of the cavity 201. During installation, the aluminum circuit board 3 is inserted from the side, and its left and right sides are elastically clamped and fixed by the corresponding upper and lower clamping blocks 203. This method is simple to install and has good vibration resistance.

[0030] Limiting support: A limiting block 204 is provided on the back wall of cavity 201, and the edge of aluminum circuit board 3 is supported on the limiting block 204 to ensure the consistency of heat dissipation spacing.

[0031] Enhanced heat dissipation: As a preferred method for enhancing heat dissipation, multiple ventilation holes (not shown in the figure) are opened on the side wall of cavity 201. These ventilation holes are connected to the internal and external environment of cavity 201, and utilize the chimney effect of hot air rising naturally to form an airflow channel from bottom to top, actively expelling the accumulated hot air and significantly enhancing the overall heat dissipation effect.

[0032] Optimizing optical performance: To further improve light efficiency, a highly reflective coating (such as white ink or aluminum film) is applied to the surface of the light guide strip recess 202. This reduces light loss caused by light leakage from the side of the light guide strip, allowing more light to be reflected and guided to the light-transmitting part 101, thereby improving the brightness and uniformity of the emitted light.

[0033] Brief description of working principle: When LED301 operates, the heat generated is rapidly conducted to the aluminum circuit board 3. Due to the excellent thermal conductivity of the aluminum substrate, the heat is quickly dispersed throughout the board. The air around and behind the board is heated and rises, forming natural convection through the 0.5 to 3 mm gap between it and the inner wall of cavity 201. If ventilation holes are provided, cool air is supplied from the lower holes, and hot air is exhausted from the upper holes, forming a continuous airflow that efficiently carries heat away from the lamp body, thereby ensuring that the LED operates stably for a long time at a suitable temperature. At the same time, the ADS control unit sends signals according to the vehicle status to control the corresponding LED to illuminate, realizing the dual functions of autonomous driving status display and turn indication.

[0034] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A side turn signal for automobiles with integrated ADS function, comprising a faceplate (1) and a lamp holder (2), the faceplate (1) being mounted on the lamp holder (2), the front surface of the faceplate (1) having a light-transmitting portion (101), and a light guide strip being provided between the faceplate (1) and the lamp holder (2), characterized in that: The lamp holder (2) has a cavity (201) on its left side. An aluminum circuit board (3) is installed in the middle of the cavity (201). The heat dissipation surface of the aluminum circuit board (3) is spaced from the inner wall of the cavity (201). The aluminum circuit board (3) is equipped with an LED (301), which is aligned with one end of the light guide strip. The aluminum circuit board (3) is electrically connected to the vehicle ADS control unit to receive control signals and drive the LED (301) to display the autonomous driving status signal.

2. The automobile side turn signal integrated with ADS function according to claim 1, characterized in that: The LED (301) includes at least one blue-green LED and one amber LED, wherein the blue-green LED is used to display the autonomous driving mode status and the amber LED is used to display the turn signal status.

3. The integrated ADS function automobile side turn signal according to claim 1, characterized in that: The cavity (201) has two clamping blocks (203) on its upper and lower walls respectively, and the two clamping blocks (203) are clamped on the left and right surfaces of the aluminum circuit board (3) respectively.

4. A car side turn signal with integrated ADS function according to claim 1, characterized in that: The lamp holder (2) is provided with a light guide strip recess (202), and one side surface of the light guide strip is placed in the light guide strip recess (202).

5. A car side turn signal integrating ADS function according to claim 1, characterized in that: The front surface of the mask (1) is provided with at least two horizontal strips (102), which are distributed on the upper and lower sides of the light-transmitting part (101).

6. A car side turn signal with integrated ADS function according to claim 1, characterized in that: The back wall of the cavity (201) is provided with multiple limiting blocks (204), and the edge of the aluminum circuit board (3) is placed on the limiting blocks (204).

7. A car side turn signal integrating ADS function according to claim 5, characterized in that: The horizontal bar (102) is integrally formed with the mask (1), and the horizontal bar (102) is used to be mounted on the car.

8. The integrated ADS function automobile side turn signal according to claim 1, characterized in that: The cavity (201) has multiple ventilation holes on its side wall, which are connected to the interior and exterior environment of the cavity (201).

9. The integrated ADS function automobile side turn signal according to claim 4, characterized in that: The surface of the light guide strip recess (202) is provided with a high reflectivity reflective coating.

10. A car side turn signal with integrated ADS function according to claim 1, characterized in that: The distance between the heat dissipation surface of the aluminum circuit board (3) and the inner wall of the cavity (201) is 0.5 to 3 mm.

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