Automobile side steering lamp
By dividing the back of the light-transmitting cover into multiple independent areas using light guide strips, and using a small number of LED beads to achieve multiple sets of independent color bar displays, the problems of high power consumption and monotonous display effects in existing technologies are solved, reducing costs and improving display effects and structural adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN YAHANG PRECISION INJECTION MOLDING CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-21
AI Technical Summary
Current automotive turn signals use multiple LED bulbs or LEDs, resulting in high energy consumption, high cost, and a limited display effect, making it impossible to transform them into multiple color bars as needed.
The back of the light-transmitting cover is divided into multiple independent areas by light guide strips, with each light guide strip corresponding to a light area. Multiple sets of independent color bars are displayed using a small number of LED beads. Combined with the curved design of the lamp holder and the light-transmitting cover to adapt to the rearview mirror, the number of LED beads is reduced and the optical display effect is improved.
It significantly reduces component costs and circuit power consumption, enables multiple independent color bar displays, enhances visual recognition, and improves structural reliability and adaptability.
Smart Images
Figure CN224150730U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive technology, and in particular to a side turn signal for automobiles. Background Technology
[0002] Turn signals on a car are used to warn other drivers and pedestrians in the surrounding area, allowing them to anticipate the direction the vehicle intends to turn and react accordingly. Most cars have turn signals located on the left and right sides of the front and rear of the vehicle, and some even have them on the left and right sides near the front. Some higher-end vehicles further integrate turn signals onto the outer surface of the rearview mirrors, resulting in a greater number of turn signals and enhanced safety.
[0003] Turn signals, as is known, are installed in car rearview mirrors by housing multiple small bulbs inside the mirror's housing. Due to the increasing maturity of LED (light-emitting diode) technology, recent vehicle models use multiple LEDs inside the rearview mirror housing to replace traditional bulbs. Therefore, the emitted light is generated by these bulbs or LEDs, resulting in a larger number of bulbs or LEDs, higher energy consumption, and higher costs. Furthermore, only a single color bar is used, which cannot be converted into multiple color bars as needed, thus lacking in display effect. Summary of the Invention
[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a car side turn signal that can reduce manufacturing costs and improve display effects by adding multiple sets of colored stripes.
[0005] This utility model also provides a car side turn signal, including a lamp holder and a light-transmitting cover. The light-transmitting cover is installed on the lamp holder, and a circuit board with LED beads is provided inside the lamp holder. The front surface of the light-transmitting cover has a light-transmitting area, and a partition plate is provided inside the lamp holder. At least two light guide strips are provided on the back of the light-transmitting cover. The light guide strips are in close contact with the light-transmitting cover, and the LED beads are on the side surface of the light guide strips.
[0006] Specifically, the partition plate is divided into a first partition plate, a second partition plate and a third partition plate. The back of the light-transmitting cover is provided with a first insertion position, a second insertion position and a third insertion position. The top ends of the first insertion position, the second insertion position and the third insertion position are respectively placed inside the first insertion position, the second insertion position and the third insertion position.
[0007] Specifically, the light guide strip is divided into a first light guide strip, a second light guide strip, a third light guide strip, and a fourth light guide strip. The first light guide strip is located on the side of the third partition plate, the second light guide strip is located between the third partition plate and the second partition plate, the third light guide strip is located between the second partition plate and the first partition plate, and the fourth light guide strip is located on the side of the first partition plate.
[0008] Specifically, the surface of the light-transmitting cover is provided with a first fastening position and a second fastening position.
[0009] Furthermore, the lamp holder has a base guard edge and the light-transmitting cover has a cover guard edge, which are welded together.
[0010] Specifically, the first partition plate, the second partition plate, the third partition plate, and the lamp holder are integrally formed.
[0011] Specifically, one side of the first partition plate, the second partition plate, and the third partition plate are respectively placed on the circuit board.
[0012] Specifically, the lamp holder, the light-transmitting cover, and the light guide strip are all arc-shaped.
[0013] This utility model achieves significant improvements through the above-mentioned technical means, with the following specific beneficial effects:
[0014] I. Reduce manufacturing costs and energy consumption:
[0015] This structure uses light guide strips to transmit light from a single LED to multiple independent light zones, replacing the traditional multi-LED layout. While achieving a multi-light-strip display effect, it significantly reduces the number of LEDs. In this embodiment, only a small number of LEDs are needed to drive four light guide strips, directly reducing component costs and circuit power consumption.
[0016] II. Enhancing optical display performance and flexibility:
[0017] This structure uses a first partition plate, a second partition plate, and a third partition plate to divide the back of the light-transmitting cover into multiple independent areas. Each light guide strip corresponds to a light area, enabling multiple sets of independent color strip displays. This allows the turn signals to be lit in segments or display different colors. The light guide strips are tightly fitted to the light-transmitting cover to ensure uniform light diffusion, avoid the mottled feeling of traditional point light sources, and enhance visual recognition.
[0018] III. Enhancing structural reliability and adaptability:
[0019] The lamp holder and partition plate are integrally molded, and the welded base and cover edges enhance sealing and vibration resistance. The curved design of the lamp holder, light-transmitting cover and light guide strip fits the curved shape of the rearview mirror, expanding the installation scenarios, and is especially suitable for streamlined rearview mirrors. Attached Figure Description
[0020] 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.
[0021] Figure 1 This is a schematic diagram of the structure of this utility model.
[0022] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure.
[0023] Figure 3 yes Figure 3 A schematic diagram of its decomposed structure.
[0024] Figure 4 This is a schematic diagram showing the connection between the circuit board, light guide strip, first partition plate, second partition plate, and third partition plate of this utility model.
[0025] As shown in the attached diagram, the following components are labeled: lamp holder 1, holder edge 101, first partition plate 102, second partition plate 103, third partition plate 104, light-transmitting cover 2, light-transmitting area 201, first fastener 202, second fastener 203, first insertion position 204, second insertion position 205, third insertion position 206, cover edge 207, light guide strip 3, first light guide strip 301, second light guide strip 302, third light guide strip 303, fourth light guide strip 304, circuit board 4. Detailed Implementation
[0026] 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.
[0027] The following is for reference. Figures 1 to 4 A side turn signal for automobiles according to an embodiment of the present utility model is described, including a lamp holder 1 and a light-transmitting cover 2. The light-transmitting cover 2 is mounted on the lamp holder 1. The lamp holder 1 has a circuit board 4 with LED beads inside. The front surface of the light-transmitting cover 2 has a light-transmitting area 201. The lamp holder 1 has a partition plate inside. The back of the light-transmitting cover 2 has at least two light guide strips 3. The light guide strips 3 are in close contact with the light-transmitting cover 2. The LED beads are on the side surface of the light guide strips 3.
[0028] This structure uses light guide strips 3 to guide the light from a single LED to multiple independent light zones, replacing the traditional multi-LED layout. While achieving a multi-light-strip display effect, it significantly reduces the number of LEDs. In this embodiment, only a small number of LEDs are needed to drive four light guide strips 3, directly reducing component costs and circuit power consumption.
[0029] The structure comprises a first partition plate 102, a second partition plate 103, and a third partition plate 104. The back of the light-transmitting cover 2 is provided with a first insertion slot 204, a second insertion slot 205, and a third insertion slot 206. The tops of the first insertion slot 204, the second insertion slot 205, and the third insertion slot 206 are respectively positioned within the first insertion slot 204, the second insertion slot 205, and the third insertion slot 206. This structure uses the first partition plate 102, the second partition plate 103, and the third partition plate 104 to divide the back of the light-transmitting cover 2 into multiple independent areas. Each light guide strip 3 corresponds to one light area, enabling multiple sets of independent color strip displays, allowing for segmented illumination or the display of different colors.
[0030] The light guide strip 3 described in this structure is divided into a first light guide strip 301, a second light guide strip 302, a third light guide strip 303, and a fourth light guide strip 304. The first light guide strip 301 is located on the side of the third partition plate 104, the second light guide strip 302 is located between the third partition plate 104 and the second partition plate 103, the third light guide strip 303 is located between the second partition plate 103 and the first partition plate 102, and the fourth light guide strip 304 is located on the side of the first partition plate 102.
[0031] The surface of the light-transmitting cover 2 described in this structure is provided with a first fastening position 202 and a second fastening position 203. The first fastening position 202 and the second fastening position 203 are respectively adapted to two fastening parts on a car rearview mirror. The two fastening parts are placed on the first fastening position 202 and the second fastening position 203 respectively, so that the light-transmitting cover 2 cannot be moved left or right.
[0032] The lamp holder 1 of this structure has a base guard 101 on its edge, and the light-transmitting cover 2 has a cover guard 207 on its edge. The base guard 101 and the cover guard 207 are welded together. The light guide strip 3 is closely attached to the light-transmitting cover 2 to ensure uniform light diffusion, avoid the mottled feeling of traditional point light sources, and enhance visual recognition.
[0033] The first partition plate 102, the second partition plate 103, and the third partition plate 104, along with the lamp holder 1, are integrally formed. The lamp holder 1 is integrally molded with the partition plate, and the welded seat and cover edges enhance sealing and vibration resistance. The curved design of the lamp holder, light-transmitting cover, and light guide strip conforms to the curved surface of the rearview mirror, expanding installation scenarios, especially suitable for streamlined rearview mirrors, thus enhancing structural reliability and adaptability.
[0034] In this structure, one side of the first partition plate 102, the second partition plate 103, and the third partition plate 104 are respectively placed on the circuit board 4, which prevents the LEDs on the circuit board 4 from emitting light independently and from affecting each other.
[0035] The lamp holder 1, light-transmitting cover 2, and light guide strip 3 described in this structure are all arc-shaped, which can be adapted to the shape of the car rearview mirror.
[0036] The following are supplementary embodiments for specific implementation methods:
[0037] like Figure 4 As shown, Example 1:
[0038] Optical system configuration of light guide strip 3 and LED bead layout: Four LED beads (model: 2835 SMD LED, 10 lm luminous flux per bead) are integrated on a single circuit board 4; four arc-shaped light guide strips 3 are set, made of PMMA (refractive index 1.49), with dimensions of 80mm (length) × 2mm (width) × 1.5mm (thickness); coupling method between LED bead 401 and light guide strip 3:
[0039] The first LED a is in close contact with the end face (incident surface) of the first light guide strip 301;
[0040] The second LED bead b is in close contact with the end face (incident surface) of the second light guide strip 302;
[0041] The third LED c is in close contact with the end face (incident surface) of the third light guide strip 303;
[0042] The fourth LED bead d is in close contact with the end face (incident surface) of the fourth light guide strip 304.
[0043] Zoned control effect: When the left rearview mirror is turned on, the first LED a is lit, illuminating the first light guide strip 301 to form a yellow light strip; the second LED b is lit, illuminating the second light guide strip 302 to form a yellow or red light strip; the third LED c is lit, illuminating the third light guide strip 303 to form a yellow, red, or blue light strip; the fourth LED d is lit, illuminating the fourth light guide strip 304 to form a yellow, red, or blue light strip, achieving a four-strip flowing display effect. Example 2:
[0044] Assembly of lamp holder and light-transmitting cover: Place the one-piece molded lamp holder 1 (material: PC / ABS alloy) in the fixture; after applying optical adhesive (refractive index 1.45) to the back of the light guide strip 3, press it into the preset groove on the back of the light-transmitting cover 2;
[0045] Using an ultrasonic welding machine, at a frequency of 20kHz and an amplitude of 50μm, continuous welding (0.8mm penetration) is performed along the joint line between the seat guard edge 101 and the cover guard edge 207 to form a waterproof sealing structure (compliant with IP67 standard).
[0046] Example 3: The surface adaptation scheme is as follows:
[0047] Arc parameters: The radius of curvature of lamp holder 1 is 150 mm, and the arc is 120°;
[0048] The radius of curvature of the light-transmitting cover 2 is 150 mm, and the arc is 120°;
[0049] The radius of curvature of the light guide strip 3 is 150 mm and the arc is 120°.
[0050] Installation scenario: Adapts to the curved surface of the rearview mirror housing (curvature radius 145-155mm), with light guide strip 3 bending loss <8%.
[0051] Technical effect comparison and verification: The traditional multi-LED solution uses 8-12 LEDs, while this embodiment uses only 4 LEDs, resulting in a reduction of over 60% compared to the traditional multi-LED solution. The power consumption (DC12V) of this embodiment is reduced by 62.5%; this embodiment also supports dynamic flowing display.
[0052] According to the description: the data in the example is based on Figures 1 to 4 The layout of the LED beads and the partitioning of the light guide strips; the surface parameters directly correspond to the "rearview mirror installation requirements" in the background technology; the effect data are obtained through optical simulation software (TracePro) and physical prototype testing.
[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A side turn signal for automobiles, comprising a lamp holder (1) and a light-transmitting cover (2), wherein the light-transmitting cover (2) is mounted on the lamp holder (1), the lamp holder (1) contains a circuit board (4) with LED beads, and the front surface of the light-transmitting cover (2) has a light-transmitting area (201), characterized in that, The lamp holder (1) is provided with a partition plate, and the back of the light-transmitting cover (2) is provided with at least two light guide strips (3). The light guide strips (3) are in close contact with the light-transmitting cover (2), and the lamp beads are on the side surface of the light guide strips (3).
2. A side direction indicator lamp for a vehicle according to claim 1 wherein: The partition is divided into a first partition (102), a second partition (103) and a third partition (104). The back of the light-transmitting cover (2) is provided with a first insertion slot (204), a second insertion slot (205) and a third insertion slot (206). The tops of the first insertion slot (204), the second insertion slot (205) and the third insertion slot (206) are respectively placed inside the first insertion slot (204), the second insertion slot (205) and the third insertion slot (206).
3. A side direction indicator lamp for a vehicle according to claim 2, wherein: The light guide strip (3) is divided into a first light guide strip (301), a second light guide strip (302), a third light guide strip (303) and a fourth light guide strip (304). The first light guide strip (301) is located on the side of the third partition plate (104), the second light guide strip (302) is located between the third partition plate (104) and the second partition plate (103), the third light guide strip (303) is located between the second partition plate (103) and the first partition plate (102), and the fourth light guide strip (304) is located on the side of the first partition plate (102).
4. The side turn signal lamp of claim 1, wherein: The surface of the light-transmitting cover (2) is provided with a first fastener (202) and a second fastener (203).
5. The side turn signal lamp of claim 1, wherein: The lamp holder (1) has a base guard (101) on its edge, and the light-transmitting cover (2) has a cover guard (207) on its edge. The base guard (101) and the cover guard (207) are welded together.
6. A side direction indicator lamp for a vehicle according to claim 2 wherein: The first partition plate (102), the second partition plate (103) and the third partition plate (104) and the lamp holder (1) are integrally formed.
7. A side direction indicator lamp according to claim 2, wherein: One side of the first partition plate (102), the second partition plate (103) and the third partition plate (104) are respectively placed on the circuit board (4).
8. A side direction indicator lamp for a vehicle according to claim 1 wherein: The lamp holder (1), the light-transmitting cover (2), and the light guide strip (3) are all arc-shaped.