Mounting structure of light guide bracket and PCB (Printed Circuit Board)
By introducing snap and slot structures on the light guide bracket and the PCB board, the complex connection problem of the light guide bracket and the PCB board in existing car lights is solved, and efficient and low-cost fixed connection is achieved.
Patent Information
- Application Number
- CN202422402013.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The connection between the light guide bracket and the PCB board in existing car lights is complicated, resulting in long assembly time, high cost and special tooling, which affects assembly efficiency.
The snap and slot structure is used instead of screw connections, combining positioning and limiting columns, the number and layout of snap and slots are optimized to ensure the reliability of the fixed connection and simplify the assembly process.
It reduces material and tool costs, simplifies assembly processes, improves assembly efficiency, and reduces the demand for special tooling.
Smart Images
Figure CN223137710U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamps, and particularly relates to an installation structure of a light guide bracket and a PCB board. Background Art
[0002] In vehicle lamps, the light guide bracket and the PCB board are usually connected and fixed by screws, and structures such as positioning posts, positioning holes, and limiting posts are used to ensure the accuracy and efficiency of assembly. The existing assembly method is as Figures 1-3 shown. Usually, two groups of screw holes and positioning holes 7 need to be provided on the PCB board 1, and at the same time, matching screw posts 5, positioning posts 4, and limiting posts 6 need to be provided on the light guide bracket 2. During assembly, first align the positioning holes 7 on the PCB board 1 with the positioning posts 4 on the light guide bracket 2, then press the PCB board 1 until it contacts the limiting post 4, and finally use an electric wrench to drive the screws 3 into the screw posts 5 respectively, thereby completing the positioning and fixing of the PCB board 1.
[0003] Although this solution can ensure the reliability of the installation connection between the PCB board 1 and the light guide bracket 2, when the operator tightens the screws with an electric wrench, one hand needs to hold the PCB board 1 and the light guide bracket 2, and at the same time, the other hand needs to operate the electric wrench, resulting in the need to design a special tooling to fix the light guide bracket 2 at this station. In addition, the installation directions of other components on the light guide bracket 2 are inconsistent with the installation direction of the PCB board 1, resulting in the need to rotate the light guide bracket 2 to operate when installing the PCB board 1 after installing other components. In this way, not only the assembly time is prolonged, but also additional tooling costs are increased. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the above actual problems existing in the existing vehicle lamp products, and provide a new installation structure of a light guide bracket and a PCB board. This installation structure comprehensively considers various factors such as the design strength, installation process, and optical performance of each part, and ensures the quick positioning and fixed connection of the light guide bracket and the PCB board, not only improving the assembly efficiency but also reducing the cost. To achieve the above purpose, the technical solutions adopted by the utility model are as follows:
[0005] An installation structure of a light guide bracket and a PCB board, including a PCB board 1 and a light guide bracket 2. A positioning post 4 and a buckle 8 are arranged on the installation end face of the light guide bracket 2, and a matching positioning hole 7 and a card slot are arranged on the PCB board 1. The PCB board 1 and the light guide bracket 2 are positioned through the positioning post 4 and the positioning hole 7, and are clamped and fixed through the buckle 8 and the card slot.
[0006] Furthermore, the number of the buckles 8 and the card slots is not less than 3, and they face different directions respectively, thereby locking the PCB board to prevent it from moving.
[0007] Further, the number of the buckles 8 and the card slots is three each, and they are arranged dispersedly in a triangle, that is, a set of buckles and card slots corresponds to one side.
[0008] Further, the installation end face of the optical guide bracket 2 is horizontally downward or faces downward and inclines at a certain angle.
[0009] Further, the number of the positioning holes 7 is two, and they are arranged dispersedly along the width direction of the PCB board. When the screw was used for fixed connection in the original solution, the screw posts could only be arranged along the length direction of the PCB board to conform to this structure. However, in the improved new solution, the buckle assembly is used for fixed connection, and at this time, it is more reasonable to arrange the positioning holes along the width direction of the PCB board.
[0010] Further, a limiting post 6 is also convexly provided on the installation end face of the optical guide bracket 2, and the height of the limiting post 6 is less than the height of the positioning post 4.
[0011] Further still, the number of the limiting posts 6 is the same as the number of the buckles 8, and a matching limiting post 6 is arranged on the side of each buckle 8. Through the mutual cooperation of the limiting posts and the buckles, the PCB board 1 and the optical guide bracket 2 can be reliably fixed together to prevent them from moving up and down or left and right.
[0012] Further, the positioning posts 4, the limiting posts 6, the buckles 8 and the optical guide bracket 2 are integrally formed, and this method can reduce costs.
[0013] Compared with the previous screw installation structure and other similar products, the buckle fixing method proposed by the present utility model can save the screw cost, and the space occupied by the buckles is less, reducing the material and cost of the PCB board and the optical guide bracket. In addition, this installation structure does not require supporting equipment such as an electric wrench and a special tooling fixture, and also reduces the tool cost. Compared with the previous assembly method, this installation structure also simplifies the assembly process, saves the assembly time and improves the assembly efficiency. Description of the Drawings
[0014] Figure 1 is an exploded schematic view of the old screw installation solution;
[0015] Figure 2 is a front schematic view of the old screw installation solution;
[0016] Figure 3 is a side schematic view of the old screw installation solution;
[0017] Figure 4 is an exploded schematic view of the new buckle installation solution;
[0018] Figure 5 is a front schematic view of the new buckle installation solution;
[0019] Figure 6 It is a side schematic diagram of the new buckle installation scheme.
[0020] Wherein: 1 - PCB board, 2 - light guide bracket, 3 - screw, 4 - positioning post, 5 - screw post, 6 - limiting post, 7 - positioning hole, 8 - buckle. Specific implementation manner
[0021] In order to enable those of ordinary skill in the art to fully understand the technical solutions and beneficial effects of the present utility model, the following further description is made in conjunction with specific embodiments and the accompanying drawings.
[0022] A certain type of vehicle lamp product produced by our company contains components such as a light guide, a light guide bracket 2, and a PCB board 1. Among them, the light guide is fixed on the light guide bracket 2, and the PCB board 1 is fixed on the light guide bracket 2 by screws. As described above, this fixing method has problems such as a relatively complex assembly process, low efficiency, and high cost. Therefore, we have improved the light guide bracket 2 and the PCB board 1, introduced a buckle array to replace the original screws, and optimized the quantity and layout of each connection structure, and utilized the characteristics of the parts themselves to meet the requirements of fixed connection, which not only saves the tooling and material costs, but also simplifies the installation process and improves the assembly efficiency.
[0023] As Figures 4-6 shown, in the new scheme, 2 positioning posts 4, 3 limiting posts 6, and 3 groups of buckles 8 are provided on the connection end face between the light guide bracket 2 and the PCB board 1, and 2 positioning holes 7 and 3 card slots are provided at the corresponding positions on the surface of the PCB board 1. Since the screw posts are cancelled and in order to cooperate with the buckles, the positioning posts 2 are arranged along the width direction of the PCB board 1. In order to ensure that each buckle 8 can be snapped in place, shorter limiting posts 6 are provided beside it, and both sides of the PCB board 1 are clamped tightly by the claws and the limiting posts. Compared with the fixing method of two screws, we adopt a method of 3 groups of buckle - card slot to strengthen the connection reliability. These three groups of buckle - card slot are distributed in a triangular manner on three sides of the PCB board 1 to limit the movement of the PCB board from different directions.
[0024] The present utility model adopts a combined assembly method of multiple groups of buckles for fixing and the mutual cooperation of positioning posts and positioning holes to realize the fixed connection between the PCB board and the light guide bracket. In this process, the deformation characteristics of the material and the characteristics of the buckle structure are reasonably utilized, which not only ensures the reliability of the installation and positioning of the parts, but also fully considers the process and cost requirements of the production line assembly, not only reducing the production cost but also improving the assembly efficiency.
Claims
1. An installation structure of an optical guide bracket and a PCB board, characterized in that: The installation structure includes a PCB board and an optical guide bracket. On the installation end face of the optical guide bracket, positioning posts and buckles are convexly provided. On the PCB board, matching positioning holes and card slots are provided. The PCB board and the optical guide bracket are positioned through the positioning posts and positioning holes, and are fixedly connected through the buckles and card slots.
2. The mounting structure of the optical guide bracket and the PCB board according to claim 1, characterized in that: The number of the buckles and card slots is not less than 3, and they face different directions respectively.
3. The mounting structure of the optical waveguide bracket and the PCB board according to claim 2, characterized in that: The number of the buckles and card slots is 3, and they are dispersedly arranged in a triangle.
4. The mounting structure of the optical guide bracket and the PCB board according to claim 1, characterized in that: The positioning posts and buckles are integrally formed with the optical guide bracket.
5. The mounting structure of the optical guide bracket and the PCB board according to claim 1, characterized in that: The installation end face of the optical guide bracket faces horizontally downward or obliquely downward.
6. The mounting structure of the optical guide bracket and the PCB board according to claim 1, characterized in that: The number of the positioning holes is 2, and they are dispersedly arranged along the width direction of the PCB board.
7. The mounting structure of the optical guide bracket and the PCB board according to claim 1, characterized in that: On the installation end face of the optical guide bracket, a limit post is also convexly provided, and the height of the limit post is less than that of the positioning post.
8. The mounting structure of the optical waveguide bracket and the PCB board according to claim 7, characterized in that: The number of the limit posts is the same as that of the buckles, and a limit post is provided on the side of each buckle.