Low-cost light guide fixing structure
By integrating the light guide bracket with the cover plate, and combining positioning pins and snap-fit structures, the problem of unreasonable light guide fixation is solved, achieving low-cost and efficient assembly, and meeting performance and appearance requirements.
Patent Information
- Application Number
- CN202423184505.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-10-29
AI Technical Summary
The existing design of fixing light guides and light guide brackets in automotive lighting is unreasonable, resulting in high costs, complex assembly, and difficulty in meeting performance and appearance requirements.
The light guide bracket body and cover plate are designed as an integrated structure. The light guide is precisely positioned and locked by the light guide positioning pin and buckle, which simplifies the assembly steps and eliminates the screw tightening process.
It reduced mold and tooling costs, improved assembly efficiency, simplified operating procedures, and lowered the overall lamp development cost.
Smart Images
Figure CN223609938U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of automobile lamps and lanterns, and particularly relates to a light guide and light guide support mounting and fixing structure for an automobile lamp and lantern. BACKGROUND
[0002] In recent years, the competition in the automobile market is increasingly fierce, and the price war is continuously escalating, which has become a prominent feature of the current market, so customers are increasingly strict about cost control in the design of automobile lamps and lanterns, and it is a difficult problem for engineers to continuously overcome how to have cost advantages as far as possible on the premise of meeting performance. As a very important part of an automobile, a vehicle lamp not only matches the appearance of the automobile but also has the important functions of illumination and signaling. In the design of a vehicle lamp, the commonly used optical types for a long strip-shaped light-emitting surface are thick walls and light guides, and the light guide has the advantages of good uniformity and low cost compared with the thick wall scheme, so the light guide is often adopted by customers, the fixing of the light guide and the light guide support is a relatively important design knowledge point in the design of the light guide scheme, the light guide is a long strip-shaped light guide piece used for aggregating the light of an LED in the light guide to make the light transmit in the light guide pipe through cooperation of optical design, if the design is unreasonable, various problems such as non-compliance with regulations, yellowing and ablation may exist, so the design of the fixing of the light guide is particularly important, and the requirements on the design are higher under the pressure of cost, performance, appearance and cost are all required to be met, so optimization and improvement of the design are particularly important. CONTENT OF THE UTILITY MODEL
[0003] The utility model discloses a low-cost structure for light guide fixing and assembling of an automobile lamp and lantern to solve the technical problem of light guide fixing and assembling of an automobile lamp and lantern.
[0004] The utility model discloses the technical scheme that adopts:
[0005] A low-cost light guide fixing structure, comprising a light guide support body, a light guide, a light guide support connecting rib and a light guide support cover plate, the light guide support body is provided with a light guide profiling groove, the light guide is arranged in the light guide profiling groove, the light guide support cover plate is connected with the light guide support body through the light guide support connecting rib, the light guide is provided with a light guide positioning pin, the light guide support cover plate is provided with a light guide positioning hole, the light guide positioning pin and the light guide positioning hole are positioned in each other, the light guide support body is provided with a light guide support buckle cooperation hole, the light guide support cover plate is provided with a light guide support buckle, the light guide support buckle and the light guide support buckle cooperation hole are locked in each other, the light guide support cover plate is provided with a light guide support positioning hole, the light guide support body is provided with a light guide support positioning pin, and the light guide support positioning pin and the light guide support positioning hole are positioned in each other.
[0006] The light guide is long strip-shaped, and the cross section is circular, sector-shaped or umbrella-shaped.
[0007] The number of the light guide support connecting ribs is 2-10.
[0008] The material of the light guide support connecting rib is any one of PC, PA, PP, PBT, POM and PUR.
[0009] The light guide support buckle is a self-rebound buckle structure.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] 1. The utility model discloses simple structure, through the light guide support and light guide cover plate design is a piece and saves the mold fee of light guide cover plate thereby reduces the development cost of whole lamp.
[0012] 2. The utility model discloses through the light guide support and light guide cover plate design is a piece, from the previous need three steps operation becomes two steps operation and promotes the assembly rhythm, and omits the previous screw tight scheme's frock, both reduces the manufacturing expense and also reduces development cost. BRIEF DESCRIPTION OF DRAWINGS
[0013] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.
[0014] Figure 1 It is the explosion drawing of the utility model;
[0015] Figure 2 It is the preloading assembly drawing of the utility model;
[0016] Figure 3 It is the assembly assembly drawing of the utility model;
[0017] Figure 4 It is the three kinds of cross section shape drawings of the light guide in the utility model;
[0018] Figure 5 It is the schematic view of the self-rebound buckle structure in the utility model. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below in combination with the drawings and examples.
[0020] See Figure 1A low-cost light guide fixing structure, comprising a light guide bracket body 1, a light guide 2, a light guide bracket connecting rib 6, a light guide bracket cover plate 10, the light guide bracket body 1 is provided with a light guide profiling groove 8, the light guide 2 is arranged in the light guide profiling groove 8, the light guide bracket cover plate 10 is connected with the light guide bracket body 1 through the light guide bracket connecting rib 6, the light guide 2 is provided with a light guide positioning pin 3, the light guide bracket cover plate 10 is provided with a light guide positioning hole 5, the light guide positioning pin 3 and the light guide positioning hole 5 are positioned by mutual cooperation, the light guide bracket body 1 is provided with a light guide bracket buckle cooperation hole 7, the light guide bracket cover plate 10 is provided with a light guide bracket buckle 4, the light guide bracket buckle 4 and the light guide bracket buckle cooperation hole 7 are locked by mutual cooperation, the light guide bracket cover plate 10 is provided with a light guide bracket positioning hole 11, the light guide bracket body 1 is provided with a light guide bracket positioning pin 9, the light guide bracket positioning pin 9 and the light guide bracket positioning hole 11 are positioned by mutual cooperation.
[0021] As Figure 2 , the light guide 2 is assembled on the light guide profiling groove 8 to form a light guide bracket pre-assembly sub-assembly.
[0022] The light guide bracket cover plate 10 rotates around the light guide bracket connecting rib 6, the light guide positioning pin 3 and the light guide positioning hole 5 are accurately positioned. The light guide bracket positioning pin 9 and the light guide bracket positioning hole 11 are accurately positioned. The light guide bracket buckle 4 and the light guide bracket buckle cooperation hole 7 are accurately buckled.
[0023] As Figure 3 , after the light guide 2 is placed in the light guide profiling groove 8, the light guide bracket cover plate 10 is rotated around the light guide bracket connecting rib 6, the light guide positioning pin 3 on the light guide 2 and the light guide positioning hole 5 on the light guide bracket cover plate 10 are positioned by mutual cooperation, the light guide bracket positioning hole 11 and the light guide bracket positioning pin 9 are positioned by mutual cooperation, and the light guide bracket buckle 4 on the light guide bracket cover plate 10 and the light guide bracket buckle cooperation hole 7 on the light guide bracket body 1 are buckled by mutual cooperation, thereby positioning and locking the light guide 2 to obtain a light guide bracket assembly.
[0024] As Figure 4 , the light guide 2 is a long strip type, the cross section is circular, fan-shaped or umbrella-shaped, the cross section is not less than Φ4mm and not more than Φ12mm.
[0025] The head size of the light guide positioning pin 3 is not less than 1mm and not more than 4mm, the width is not less than 1mm and not more than 4mm, and the height is not less than 2mm and not more than 10mm.
[0026] The number of the light guide bracket connecting rib 6 is 2-10, the length L is not less than 2mm and not more than 20mm, the thickness H is not less than 0.5mm and not more than 2mm, and the width W of a single light guide bracket connecting rib 6 is not less than 0.5mm and not more than 50mm. The material of the light guide bracket connecting rib 6 is any one of PC, PA, PP, PBT, POM and PUR.
[0027] As Figure 5 The light guide support buckle 4 adopts a self-rebound buckle structure.
[0028] The utility model discloses simple structure, through the positioning and fixed of the design light guide and light guide support body, light guide support cover plate, under the premise of satisfying optical performance, through the combination light guide support body and light guide support cover plate, namely optimized assembly technology promotion assembly efficiency saves manufacturing cost, and effectively saved the investment of mould, tooling and other research and development fees.
[0029] The above only for the general embodiment of the utility model, for the person skilled in the art, the utility model can have various changes and other implementation ways of change, and here is not detailed, But any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, are included in the protection scope required by the utility model.
Claims
1. A low-cost optical guide fixing structure, characterized in that, The system includes a light guide bracket body (1), a light guide (2), a light guide bracket connecting rib (6), and a light guide bracket cover plate (10). The light guide bracket body (1) is provided with a light guide contouring groove (8), and the light guide (2) is disposed in the light guide contouring groove (8). The light guide bracket cover plate (10) is connected to the light guide bracket body (1) through the light guide bracket connecting rib (6). The light guide (2) is provided with a light guide positioning pin (3), and the light guide bracket cover plate (10) is provided with a light guide positioning hole (5). The light guide positioning pin (3) is connected to the light guide bracket body (1). The positioning holes (5) cooperate with each other for positioning. The optical guide bracket body (1) is provided with optical guide bracket buckle mating holes (7). The optical guide bracket cover plate (10) is provided with optical guide bracket buckles (4). The optical guide bracket buckles (4) and the optical guide bracket buckle mating holes (7) cooperate with each other for locking. The optical guide bracket cover plate (10) is provided with optical guide bracket positioning holes (11). The optical guide bracket body (1) is provided with optical guide bracket positioning pins (9). The optical guide bracket positioning pins (9) and the optical guide bracket positioning holes (11) cooperate with each other for positioning.
2. The low-cost optical guide fixing structure according to claim 1, characterized in that, The light guide (2) is long and narrow, with a circular, fan-shaped or umbrella-shaped cross-section.
3. The low-cost optical guide fixing structure according to claim 1, characterized in that, The number of connecting ribs (6) of the optical guide bracket is 2-10.
4. The low-cost optical guide fixing structure according to claim 1, characterized in that, The material of the connecting rib (6) of the optical guide bracket is any one of PC, PA, PP, PBT, POM and PUR.
5. The low-cost optical guide fixing structure according to claim 1, characterized in that, The optical guide bracket buckle (4) is a self-rebound buckle structure.