Novel blind area warning lamp

By designing interconnected circuit board components and light guide blocks, and utilizing the ribs of the mirror support plate and elastic clamping blocks to form continuous pressure, the problem of easy loosening of the circuit board and power supply connection of the blind spot warning light was solved, ensuring the stable operation of the blind spot warning light and improving driving safety.

CN224175109UActive Publication Date: 2026-04-28FOSHAN LIJIU PHOTOELECTRIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN LIJIU PHOTOELECTRIC TECH CO LTD
Filing Date
2025-06-09
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The circuit board and power supply connection of existing blind spot warning lights are prone to loosening, leading to functional failure, posing a safety hazard, and making maintenance inconvenient.

Method used

The design incorporates interconnected circuit board components and light guide blocks. The light guide blocks apply force to ensure a tight connection between the pins and the power supply. The mirror support plate and elastic clamping blocks create continuous pressure that is transmitted to the pins, ensuring a stable connection.

Benefits of technology

This effectively avoids warning light malfunctions caused by unstable circuit board and power supply connections, ensures stable operation of blind spot warning lights, provides drivers with reliable blind spot warnings, and improves driving safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a novel blind area warning lamp, which relates to the technical field of automobile warning lamps, and comprises a circuit board assembly and a light guide block, the light guide block is L-shaped, the circuit board assembly is composed of a first circuit board and a second circuit board, the first circuit board and the second circuit board are orthogonally arranged in an L shape, and the L shape of the light guide block and the L shape of the circuit board assembly are in a diagonal complementary state. When the light guide block and the circuit board assembly are combined together, a quadrilateral structure is defined by the light guide block and the circuit board assembly. The pins on the circuit board assembly are located on the side, away from the light guide block, of the circuit board assembly. The novel blind area warning lamp has the advantages that the circuit board assembly and the light guide block which are connected in an interactive mode are arranged, after the circuit board assembly is installed on the rearview mirror lens supporting plate, the elastic pressing blocks on the mirror supporting plate ribs press the light guide block, the light guide block tightly presses the circuit board assembly, and therefore the circuit board assembly is prevented from being damaged. The continuous pressure is transmitted to the contact pin to ensure that the contact pin is always tightly connected with the power supply.
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Description

Technical Field

[0001] The utility model relates to the field of automotive warning light technology, and in particular to a novel blind spot warning light. Background Technology

[0002] Blind spot warning lights are the visual cue component of a blind spot monitoring system. They primarily use visual signals, such as flashing or high-brightness indicators, to warn the driver of vehicles or other obstacles in the blind spot to the side and rear, thereby reducing the risk of collisions during lane changes and significantly improving driving safety. Because vehicles are constantly exposed to vibrations, temperature variations, and humidity changes, internal electronic components such as circuit boards and pins are prone to loosening due to mechanical stress. Since blind spot warning lights are installed in concealed locations (such as inside the rearview mirror cavity), maintenance is inconvenient. Poor contact at the power pins can lead to malfunction and pose a safety hazard.

[0003] The technical content disclosed in Chinese patent document (publication number: CN213019468U, patent name: a waterproof automotive blind spot warning light) is as follows: It includes a lamp holder, a circuit board installed inside the lamp holder, and a diffusion film disposed on the lamp holder. An outer lens is provided at the upper end of the lamp holder, and an inner flange is provided at the lower end of the outer lens. The inner flange is embedded in the lamp holder and fixed by laser welding. The diffusion film is adhered to the outer surface of the outer lens.

[0004] As can be seen from the above implementation plan and corresponding drawings, this automotive blind spot warning light lacks a mechanism to securely connect the circuit board pins to the power supply. With prolonged use, the connection between the circuit board and the power supply is prone to loosening. Once loosened, this will cause poor contact on the circuit board, thus affecting the normal operation of the warning light. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a new type of blind spot warning light. It is equipped with an interconnected circuit board assembly and a light guide block. When the circuit board assembly is installed on the rearview mirror lens mount, the elastic clamping block on the rib of the mirror mount presses down on the light guide block, so that the light guide block presses tightly against the circuit board assembly. This continuous pressure is transmitted to the pin, ensuring that the pin is always tightly connected to the power supply.

[0006] To solve the above-mentioned technical problems, the utility model is implemented through the following technical solution:

[0007] A novel blind spot warning light includes a circuit board assembly and a light guide block. The light guide block is L-shaped. The circuit board assembly consists of a first circuit board and a second circuit board, which are arranged in an L-shaped orthogonal configuration. The L-shape of the light guide block and the L-shape of the circuit board assembly are diagonally complementary. When the light guide block and the circuit board assembly are combined, they together form a quadrilateral structure. The pins on the circuit board assembly are located on the side of the circuit board assembly away from the light guide block.

[0008] After the circuit board assembly is installed on the rearview mirror lens mount, the light guide block is located on the side of the circuit board assembly away from the rearview mirror lens mount; the light guide block presses tightly on the circuit board assembly, forming a continuous pressure that is transmitted to the pins, ensuring that the pins and the power supply always maintain a tight connection.

[0009] Furthermore, the rearview mirror lens support plate is provided with a lens support plate rib, which is used to hold the circuit board assembly and the light guide block.

[0010] Furthermore, LED beads are installed on the second circuit board.

[0011] Furthermore, the second circuit board has a second shoulder at the end furthest from the first circuit board;

[0012] A second groove is provided at one end of the light guide block, and second limiting posts are provided on both sides of the second groove;

[0013] The second limiting post is inserted into the second shoulder position, and the first protrusion between the two second shoulders is inserted into the second groove position.

[0014] Furthermore, the light guide block has a first groove at the end away from the second groove, and a first limiting post is provided at both ends of the first groove;

[0015] The first circuit board has a first shoulder at the end away from the second circuit board;

[0016] The first limiting post is inserted into the first shoulder position, and the second protrusion between the two first shoulders is inserted into the first groove.

[0017] Furthermore, the side of the light guide block facing the first circuit board is an arc-shaped surface, which protrudes towards the first circuit board, with the middle being higher than the sides, and the end closer to the second circuit board being higher than the end farther from the second circuit board.

[0018] Furthermore, optical teeth are provided on the arc-shaped surface of the light guide block.

[0019] Furthermore, the light guide block is made of transparent PMMA material.

[0020] Furthermore, the outer corner of the L-shaped junction formed by the first and second circuit boards is fixedly connected by solder points.

[0021] Furthermore, the surface of the pin is plated with an anti-oxidation metal layer, which is a nickel plating layer or a tin plating layer with a thickness of 0.01-0.1mm, to enhance the pin's anti-oxidation ability, extend its service life, and ensure the stability of the connection with the power supply.

[0022] Compared with existing technologies, the advantages of this utility model are:

[0023] The system incorporates an interconnected circuit board assembly and a light guide block. When the circuit board assembly is mounted on the rearview mirror lens mount, elastic clamping blocks on the mount's ribs press down on the light guide block, ensuring a tight seal between the light guide block and the circuit board assembly. This continuous pressure is transmitted to the connector pins, guaranteeing a consistently secure connection between the pins and the power supply. During vehicle operation, vibrations and bumps can cause poor contact if the connection between the pins and the power supply is unstable, leading to flashing or extinguishing of the warning light and affecting its normal operation. This warning light system, through the pressure applied by the light guide block, effectively avoids such problems, ensuring stable operation and providing the driver with continuous and reliable blind spot warnings. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the utility model and, together with the embodiments of the utility model, are used to explain the utility model. They do not constitute a limitation on the utility model. In the drawings:

[0025] Figure 1 This is a schematic diagram of the first explosion of the warning light according to an embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the warning light structure according to an embodiment of the present utility model;

[0027] Figure 3 This is a second explosion diagram of the warning light according to an embodiment of the present utility model;

[0028] Figure 4 This is a schematic diagram of the first structure of the circuit board assembly according to an embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the light guide block structure according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the second structure of the circuit board assembly according to an embodiment of the present utility model;

[0031] Figure 7 This is a cross-sectional view of the circuit board assembly and light guide block combined according to an embodiment of the present utility model;

[0032] Figure 8 This is a schematic diagram of the circuit board assembly and light guide block installed on the rearview mirror lens mount according to an embodiment of the present utility model;

[0033] Figure 9 This is a top view of the circuit board assembly and light guide block of this utility model mounted on the rearview mirror lens mount.

[0034] Figure 10 This is an embodiment of the present utility model. Figure 9 The first sectional view;

[0035] Figure 11 This is an embodiment of the present utility model. Figure 9 The second sectional view.

[0036] In the diagram: 1. Circuit board assembly; 101. First circuit board; 1011. First shoulder; 102. Second circuit board; 1021. Second shoulder; 103. LED bead; 104. Pin; 105. Solder point; 2. Light guide block; 201. Optical tooth; 202. First groove; 203. First limiting post; 204. Second groove; 205. Second limiting post; 3. Rearview mirror lens holder; 301. Mirror holder rib. Detailed Implementation

[0037] The preferred embodiments of the utility model are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the utility model.

[0038] like Figures 1 to 11 As shown, a novel blind spot warning light includes a circuit board assembly 1 and a light guide block 2. The circuit board assembly 1 is the core component for the control and illumination of the entire warning light, while the light guide block 2 is responsible for transmitting and optimizing the light to achieve a good warning effect. The light guide block 2 is L-shaped. The circuit board assembly 1 consists of a first circuit board 101 and a second circuit board 102, which are arranged in an L-shaped orthogonal layout. This layout not only makes full use of space but also makes the circuit connection more reasonable. The outer corner of the L-shape formed by the first circuit board 101 and the second circuit board 102 is fixedly connected by solder points 105, ensuring the stability and reliability of the connection between the two circuit boards and preventing loosening or displacement during use.

[0039] The L-shape of the light guide block 2 is diagonally complementary to the L-shape of the circuit board assembly 1. When the light guide block 2 and the circuit board assembly 1 are combined, they together form a quadrilateral structure. This structural design makes the overall appearance of the warning light more regular and also contributes to the stability of the internal structure. The pin 104 on the circuit board assembly 1 is located on the side of the circuit board assembly 1 away from the light guide block 2. The surface of the pin 104 is plated with an anti-oxidation metal layer, which is a nickel-plated layer or a tin-plated layer with a thickness of 0.01-0.1mm, to enhance the anti-oxidation ability of the pin 104, extend its service life, and ensure the stability of the connection with the power supply. Combined with the force applied by the light guide block 2 to ensure a tight connection between the pin and the power supply, it reduces electrical sparks and friction caused by loose connections, further reducing the sensitivity of the pin to oxidation and wear, thereby extending the service life of the pin and reducing warning light malfunctions caused by pin damage.

[0040] The light guide block 2 is located on the side of the circuit board assembly 1 away from the rearview mirror lens support plate 3. The rearview mirror lens support plate 3 is provided with a mirror support plate rib 301, which is used to hold the circuit board assembly 1 and the light guide block 2. The mirror support plate rib 301 is also provided with an elastic pressing block, which presses the side of the light guide block 2 away from the circuit board assembly 1, so that the light guide block 2 is pressed tightly on the circuit board assembly 1, forming a continuous pressure. This pressure is transmitted to the pin 104, so that the pin 104 and the power supply always maintain a tight connection, thereby ensuring the normal operation of the warning light.

[0041] After the circuit board assembly 1 is installed on the rearview mirror lens holder 3, the elastic clamping block on the rib 301 of the holder presses down on the light guide block 2, making the light guide block 2 tightly press against the circuit board assembly 1. This continuous pressure is transmitted to the pin 104, ensuring that the pin 104 is always tightly connected to the power supply. During vehicle operation, vibrations and bumps will occur. If the connection between the pin and the power supply is unstable, poor contact may easily occur, causing the warning light to flash or go out, affecting its normal operation. However, the warning light effectively avoids such problems by applying force through the light guide block 2, ensuring the stable operation of the warning light and providing the driver with continuous and reliable blind spot warnings.

[0042] The second circuit board 102 has a second shoulder 1021 at one end away from the first circuit board 101; the light guide block 2 has a second groove 204 at one end, and second limiting posts 205 are provided on both sides of the second groove 204; the second limiting posts 205 are inserted into the second shoulder 1021, and the first protrusion between the two second shoulder 1021 is inserted into the second groove 204, thus restricting the position of the left and right sides of the second circuit board 102. This structural design not only realizes the accurate connection between the light guide block 2 and the second circuit board 102, but also plays a certain limiting role to prevent the light guide block 2 from shifting during use.

[0043] The light guide block 2 has a first groove 202 at its end away from the second groove 204, and first limiting posts 203 at both ends of the first groove 202. The first circuit board 101 has a first shoulder 1011 at its end away from the second circuit board 102. The first limiting posts 203 are inserted into the first shoulder 1011, and the second protrusion between the two first shoulders 1011 is inserted into the first groove 202, further ensuring a stable connection between the light guide block 2 and the first circuit board 101. When the light guide block 2 applies force to the first circuit board 101, the force can be better transmitted to the pin 104.

[0044] The second circuit board 102 is equipped with LED beads 103, and the light guide block 2 has optical teeth 201 on its arc-shaped surface. The light guide block 2 is made of transparent PMMA material. The side of the light guide block 2 facing the first circuit board 101 is an arc-shaped surface, which protrudes towards the first circuit board 101, with the middle being higher than the sides. The end closer to the second circuit board 102 is higher than the end farther away from the second circuit board 102. The light guide block 2 enables the light emitted by the LED beads 103 to be evenly scattered and conducted. After being scattered by the arc-shaped surface, the light is better emitted in all directions, forming a conspicuous warning light, which is more likely to attract the driver's attention and provide clear blind spot warning information, thereby improving driving safety.

[0045] During operation, the power supply provides power to the circuit board assembly 1 through the pin 104, and the LED beads 103 on the second circuit board 102 emit light. The emitted light enters the light guide block 2, and through the arc-shaped surface and optical teeth 201 of the light guide block 2, the light is evenly scattered and conducted, forming a conspicuous warning light to provide the driver with clear blind spot warning information.

[0046] Finally, it should be noted that the above are merely preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A novel blind spot warning light, characterized in that, The circuit board assembly (1) includes a light guide block (2). The light guide block (2) is L-shaped. The circuit board assembly (1) is composed of a first circuit board (101) and a second circuit board (102), which are arranged in an L-shaped orthogonal layout. The L-shape of the light guide block (2) and the L-shape of the circuit board assembly (1) are diagonally complementary. When the light guide block (2) and the circuit board assembly (1) are combined, they together form a quadrilateral structure. The pins (104) on the circuit board assembly (1) are located on the side of the circuit board assembly (1) away from the light guide block (2). After the circuit board assembly (1) is installed on the rearview mirror lens holder (3), the light guide block (2) is located on the side of the circuit board assembly (1) away from the rearview mirror lens holder (3); the light guide block (2) is pressed tightly on the circuit board assembly (1) to form a continuous pressure, which is transmitted to the pin (104) so ​​that the pin (104) and the power supply are always kept in close contact.

2. The novel blind spot warning light according to claim 1, characterized in that, The rearview mirror lens holder (3) is provided with a lens holder rib (301), which is used to hold the circuit board assembly (1) and the light guide block (2).

3. The novel blind spot warning light according to claim 2, characterized in that, The second circuit board (102) is provided with LED beads (103).

4. The novel blind spot warning light according to claim 3, characterized in that, The second circuit board (102) has a second shoulder (1021) at the end away from the first circuit board (101); One end of the light guide block (2) is provided with a second groove (204), and the two sides of the second groove (204) are provided with second limiting posts (205); the second limiting posts (205) are inserted into the second shoulder (1021), and the first protrusion between the two second shoulder (1021) is inserted into the second groove (204).

5. The novel blind spot warning light according to claim 4, characterized in that, The light guide block (2) has a first groove (202) at one end away from the second groove (204), and first limiting posts (203) are provided at both ends of the first groove (202); The first circuit board (101) has a first shoulder (1011) at the end away from the second circuit board (102); The first limiting post (203) is inserted into the first shoulder (1011), and the second protrusion between the two first shoulders (1011) is inserted into the first groove (202).

6. The novel blind spot warning light according to any one of claims 1 to 5, characterized in that, The light guide block (2) has an arc-shaped surface facing the first circuit board (101). The arc-shaped surface protrudes in the direction of the first circuit board (101), with the middle being higher than the two sides. The end closer to the second circuit board (102) is higher than the end farther away from the second circuit board (102).

7. The novel blind spot warning light according to claim 6, characterized in that, Optical teeth (201) are provided on the arc-shaped surface of the light guide block (2).

8. The novel blind spot warning light according to claim 7, characterized in that, The light guide block (2) is made of transparent PMMA material.

9. The novel blind spot warning light according to any one of claims 1 to 5 and 7 to 8, characterized in that, The outer side of the L-shaped corner formed by the first circuit board (101) and the second circuit board (102) is fixedly connected by solder points (105).

10. The novel blind spot warning light according to claim 9, characterized in that, The surface of the pin (104) is plated with an anti-oxidation metal layer, which is a nickel plating layer or a tin plating layer with a thickness of 0.01-0.1 mm, in order to enhance the anti-oxidation ability of the pin (104), extend its service life, and ensure the stability of the connection with the power supply.

Citation Information

Patent Citations

  • Waterproof automobile blind area warning lamp

    CN213019468U