A car side turn signal

Abstract

The utility model discloses a kind of automobile side direction indicator, belong to automobile lamp technical field.The charging lamp side direction indicator includes lamp holder and lampshade, installation cavity is equipped in lamp holder, its innovation point is mainly in installation cavity inside mutually perpendicular installation has lamp plate and power supply board.Lamp plate is opened with positioning hole and is equipped with second pin, power supply board one end is equipped with the positioning head of being inserted into the positioning hole, other end is equipped on the power supply board mounting groove of installation cavity inner wall, and socket is equipped on board.Through the plug-in cooperation of positioning head and positioning hole, the preliminary mechanical interlocking and accurate positioning of two circuit boards are realized, so that the second pin on lamp plate can be accurately, smoothly inserted into the socket of power supply board to complete electrical connection.The structure fundamentally solves the pin alignment difficulty, easy to damage and other problems caused by tolerance accumulation in traditional parallel installation mode, with the advantages of accurate and reliable connection, stable structure, simple assembly process and high production efficiency.

Description

Technical Field

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

[0002] In modern automotive lighting systems, LED lights are widely used due to their advantages such as high brightness, low power consumption, and long lifespan. Existing automotive side turn signals, due to their simple function and circuitry, have minimal space requirements, with electronic components arranged on a single circuit board. However, as the functionality of side turn signals increases and the circuitry becomes more complex, more circuit components are needed to meet functional requirements. But due to space constraints, a single circuit board is insufficient to accommodate all the electronic components. Therefore, how to arrange enough electronic components within a limited space becomes a technical problem. Combining two circuit boards together via panelization is one solution, but panelization presents challenges due to accumulated dimensional tolerances and assembly process limitations, leading to quality issues. For example, inconsistent positioning references between the two boards can easily cause assembly position errors. These deformations and errors accumulate between the two boards, making it difficult to achieve precise spatial alignment of the pins and sockets on the two boards. Forcing the connection not only makes operation difficult and reduces assembly efficiency, but may also cause the pins to bend or break under stress, or damage the socket contacts, resulting in faults such as increased contact resistance, circuit breakage or unstable signal transmission, which seriously affects the electrical reliability, service life and production efficiency of the product.

[0003] Therefore, there is an urgent need for a structural solution for automotive side turn signals that can fundamentally improve the alignment accuracy between two circuit boards, enhance assembly reliability and yield. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a novel, precisely positioned, and reliably connected automotive side turn lights that address the problems of accumulated deformation errors, difficulty in aligning pins and sockets, and easy damage caused by the parallel installation of circuit boards in existing automotive side turn lights that use spliced ​​circuit boards.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: A car side turn signal, comprising a lamp holder and a lamp cover mounted on the lamp holder, wherein the front surface of the lamp cover has a light-transmitting area and the back surface has a light guide strip; one end of the lamp holder has a mounting cavity, wherein: The mounting cavity contains a lamp panel and a power supply panel that are perpendicular to each other. The light panel is equipped with an LED light source, which is located on one side of the light guide strip; the light panel is provided with positioning holes; One end of the power supply board is provided with a positioning head for insertion, and the positioning head is inserted into the positioning hole; the power supply board is provided with a socket; The inner wall of the mounting cavity is provided with a power supply board mounting groove, and the other end of the power supply board is mounted on the power supply board mounting groove; The back of the lamp panel is provided with a second pin, which is inserted into the socket of the power supply board to achieve electrical connection.

[0006] Furthermore, the power supply board is also provided with a first pin for connecting to an external power source; the power supply pin of the second pin is electrically connected to the power supply pin of the LED light source.

[0007] Specifically, the positioning head extends through the positioning hole of the lamp panel.

[0008] Specifically, the power supply board is installed at one end of the power supply board mounting slot, and a gap of 0.1mm to 0.3mm is reserved between its surface and the power supply board mounting slot.

[0009] Furthermore, the inner wall of the mounting cavity is provided with two lamp plate mounting slots facing each other, and the two ends of the lamp plate are respectively inserted into the corresponding lamp plate mounting slots.

[0010] Specifically, the lamp board is inserted at both ends of the lamp board mounting groove, and its surface is interference-fitted with the lamp board mounting groove.

[0011] Furthermore, the back of the light guide strip, corresponding to the position of the LED light source, is provided with several grooves for optimizing light efficiency.

[0012] Specifically, the groove is a V-shaped groove structure with an inner included angle greater than 30 degrees.

[0013] Specifically, the positioning head is located at the lower end of one side of the power supply board, and the positioning hole is located at the lower end of one side of the lamp board.

[0014] The beneficial effects of this utility model are as follows: I. Precise and Reliable Connection Alignment: By designing the lamp board and power supply board to be installed perpendicularly to each other, and utilizing the positioning holes on the lamp board and the positioning heads on the power supply board for the first step of insertion and engagement, preliminary mechanical interlocking and precise positioning of the two circuit boards at the connection point are achieved. This structure fundamentally eliminates the relative displacement and angular deviation between the two independent boards in the traditional parallel installation method, ensuring that the second pin can be easily and without deviation inserted into the socket, greatly reducing the risk of insertion failure or component damage due to misalignment.

[0015] II. Stable structure and strong resistance to deformation: The vertical mounting structure, combined with the lamp board mounting slot and the power supply board mounting slot, forms a stable three-dimensional spatial fixing frame, which effectively disperses the influence of the circuit board's own deformation or external stress, and ensures the stability of the pin and socket connection points during long-term use.

[0016] III. Simple and Efficient Assembly Process: During assembly, the lamp board can be fixed first, and then the power supply board can be naturally guided to the correct position and initially fixed by the guiding action of the positioning head and positioning holes, and finally the electrical connection can be achieved. This process is clear, has a high fault tolerance rate, and significantly improves assembly efficiency and product consistency; in addition, it provides space for the positioning head to deform or make errors. 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 structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the connection structure between the lamp holder, lamp board, and power supply board.

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

[0021] Figure 4 This is a schematic diagram of the connection structure between the lamp board and the power supply board.

[0022] Figure 5 for Figure 4 Another structural diagram from another angle.

[0023] Figure 6 This is a schematic diagram of the lampshade structure.

[0024] Explanation of reference numerals in the attached drawings: Lamp holder 1, mounting groove 101, limiting protrusion 102, mounting cavity 103, lamp board 104, LED light source 1041, positioning hole 1042, power supply board 105, socket 1051, first pin 1052, positioning head 1053, second pin 1043, lamp board mounting groove 106, power supply board mounting groove 107, lamp cover 2, light transmission area 201, light guide strip 202, groove 203. Detailed Implementation

[0025] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. It should be understood that the embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0026] like Figures 1 to 6As shown, the present invention provides a car side turn signal, which mainly includes a lamp holder 1, a lamp cover 2, a lamp plate 104, and a power supply board 105.

[0027] The lamp holder 1 is generally a shell structure and can be injection molded from engineering plastics. Inside the lamp holder 1 is a mounting cavity 103 for accommodating electrical components. Two lamp plate mounting slots 106 are symmetrically arranged on two opposite inner sidewalls of the mounting cavity 103. Furthermore, a power supply board mounting slot 107 is provided on another inner sidewall perpendicular to the sidewall with the lamp plate mounting slots 106. The lamp holder 1 also has a welded structure for mounting the lampshade 2.

[0028] The lampshade 2 is mounted on the lamp holder 1 by welding. The front surface of the lampshade 2 has a light-transmitting area 201, which can be made of a high-transmittance material (such as polycarbonate or PMMA). A light guide strip 202 is provided on the back of the lampshade 2 for conducting and uniformly distributing light. To optimize light efficiency, multiple grooves 203 are provided on the back of the light guide strip 202, facing the LED light source 1041. In this embodiment, these grooves 203 are preferably V-shaped grooves with an included angle greater than 30 degrees.

[0029] The lamp board 104 is preferably made of a printed circuit board (such as a fiberglass board). At least one LED light source 1041, serving as the light source, is mounted on the lamp board 104. A positioning hole 1042 is provided at an appropriate location on the lamp board 104 (e.g., the lower end of one side). At least one second pin 1043 is provided on the back side of the lamp board 104 (i.e., the side facing away from the LED light source 1041). The power supply pin of the second pin 1043 is electrically connected to the power supply pin of the LED light source 1041 through a circuit on the lamp board 104. During installation, both ends of the lamp board 104 are respectively inserted into and fixed in two lamp board mounting slots 106 on the inner wall of the mounting cavity 103. To achieve a stable installation and considering tolerances and thermal expansion, the mating parts of the lamp board 104 and the lamp board mounting slots 106 can be interference-fitted.

[0030] The power supply board 105 is also a printed circuit board, integrating power management and control circuits. One end (e.g., the lower end) of the power supply board 105 has a protruding positioning head 1053. A socket 1051 is provided on the surface of the power supply board 105, which is used to connect to and supply power to the second pin 1043 on the lamp board 104. Additionally, the power supply board 105 may also have a first pin 1052 for connecting to the vehicle's power system. During installation, one end of the power supply board 105 engages with the positioning hole 1042 on the lamp board 104 via the positioning head 1053; the other end is mounted and positioned on the power supply board mounting groove 107 on the inner wall of the mounting cavity 103. To accommodate assembly tolerances and deformation, a small gap, for example, 0.1mm to 0.3mm, may be reserved between the contact surfaces of the power supply board 105 and the power supply board mounting groove 107.

[0031] The core assembly relationship and process of this utility model are as follows: The lamp board 104 and the power supply board 105 are arranged perpendicularly within the mounting cavity 103. During assembly, the two ends of the lamp board 104 are first inserted into the two lamp board mounting slots 106 for initial positioning and fixation. Then, the positioning head 1053 of the power supply board 105 is aligned with the positioning hole 1042 on the lamp board 104, and inserted into the positioning hole 1042. This insertion action achieves precise positioning and mechanical interlocking of the two circuit boards at the connection point. During this process, due to the constraints of the vertical layout and positioning structure, the second pin 1043 on the back of the lamp board 104 automatically aligns precisely with the socket 1051 on the power supply board 105 in spatial position. The operator can then press the power supply board 105 into place, allowing the second pin 1043 to smoothly and accurately insert into the socket 1051, thereby completing a stable and reliable electrical connection between the lamp board 104 and the power supply board 105. Finally, the lampshade 2 is installed onto the lamp holder 1, completing the assembly of the entire lamp.

[0032] This utility model, through a mechanical interlocking guide structure combining a "vertical layout" and a "positioning head-positioning hole," transforms the connection between two circuit boards from traditional free alignment to constrained alignment. This effectively eliminates the cumulative tolerance error under parallel installation, ensuring the accuracy and smoothness of pin and socket insertion, and significantly improving assembly efficiency, connection reliability, and product yield.

[0033] 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 inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A side turn signal for automobiles, comprising a lamp holder (1) and a lamp cover (2) mounted on the lamp holder (1), wherein the front surface of the lamp cover (2) is provided with a light-transmitting area (201) and the back surface is provided with a light guide strip (202); one end of the lamp holder (1) is provided with a mounting cavity (103), characterized in that: The lamp plate (104) and the power supply plate (105) are installed perpendicularly to each other in the mounting cavity (103). The light panel (104) is provided with an LED light source (1041), which is located on one side of the light guide strip (202); the light panel (104) is provided with a positioning hole (1042). One end of the power supply board (105) is provided with a positioning head (1053) for insertion, and the positioning head (1053) is inserted into the positioning hole (1042); the power supply board (105) is provided with a socket (1051). The inner wall of the mounting cavity (103) is provided with a power supply board mounting groove (107), and the other end of the power supply board (105) is mounted on the power supply board mounting groove (107); The back of the lamp board (104) is provided with a second pin (1043), which is inserted into the socket (1051) of the power supply board (105) to achieve electrical connection.

2. A car side turn signal according to claim 1, characterized in that, The power supply board (105) is also provided with a first pin (1052) for connecting to an external power source; the power supply pin of the second pin (1043) is electrically connected to the power supply pin of the LED light source (1041).

3. A car side turn signal according to claim 1, characterized in that, The positioning head (1053) extends through the positioning hole (1042) of the lamp panel (104).

4. A car side turn signal according to claim 1, characterized in that, The power supply board (105) is installed at one end of the power supply board mounting groove (107), and a gap of 0.1mm to 0.3mm is reserved between its surface and the power supply board mounting groove (107).

5. A car side turn signal according to claim 1, characterized in that, The inner wall of the mounting cavity (103) is provided with two lamp plate mounting slots (106) facing each other, and the two ends of the lamp plate (104) are respectively inserted into the corresponding lamp plate mounting slots (106).

6. A car side turn signal according to claim 5, characterized in that, The lamp plate (104) is inserted into the lamp plate mounting groove (106) at both ends, and its surface is in an interference fit with the lamp plate mounting groove (106).

7. A car side turn signal according to claim 1, characterized in that, The back of the light guide strip (202) is provided with a number of grooves (203) for optimizing light effect, corresponding to the position of the LED light source (1041).

8. A car side turn signal according to claim 7, characterized in that, The groove (203) is a V-shaped groove structure with an inner included angle of more than 30 degrees.

9. A car side turn signal according to claim 1, characterized in that, The positioning head (1053) is located at the lower end of one side of the power supply board (105), and the positioning hole (1042) is located at the lower end of one side of the lamp board (104).

Images