Double-color extrusion lampshade

Abstract

The embodiment of the utility model provides a double-color extrusion lampshade. The double-color extrusion lampshade comprises a lampshade body and a fixing support. The lampshade body comprises the non-transparent base body part and the transparent light-transmitting part, the base body part and the light-transmitting part are integrally formed through the double-color extrusion technology, the mold size can be simplified, the production cost can be saved, meanwhile, the production period can be shortened, and the risk of appearance shrinkage printing deformation can be reduced; the base body part is integrally in a strip shape, the light-transmitting part is arranged on one side of the base body part in the width direction and extends in the length direction of the base body part, a penetrating groove allowing the soft light guide to penetrate through is formed in the light-transmitting part in the length direction of the light-transmitting part, and light distribution and protection can be conducted on the soft light guide through the light-transmitting part; the fixed support is arranged on the vehicle body, and a gap for the base body part to be inserted is formed between the fixed support and the vehicle body; the base body part is provided with the turnup which can be matched with the limiting protrusion on the fixing support in a clamped mode, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a double-color extruded lampshade. Background Art

[0002] Light guide is a transmission medium that can guide light from a light source to the position where light is needed. The commonly used light guides in the automotive field can be divided into soft light guides and hard light guides according to the hardness of the material and whether it can be bent. Among them, soft light guides are mostly used as atmosphere lights in automotive interior systems, and the working conditions are relatively good, so in most cases, there is no need to set a protective lampshade. In the automotive exterior system, light guides mostly belong to the category of front position lights, so a lampshade must be designed. On the one hand, it plays a role in light distribution to meet regulatory requirements, and on the other hand, it plays a role in protecting the light guide to meet the harsh external working conditions. Hard light guides are relatively more commonly used in existing automotive exterior systems, so the light distribution mirror is generally designed as an injection molding process, and transparent materials that meet the requirements can be used. However, with the rapid development of the automotive industry, soft light guides are increasingly used in automotive exterior systems due to their own advantages (such as light grilles, etc.), and are increasingly favored by OEMs and consumers. Therefore, it is urgent to design a special lampshade to meet the application of soft light guides in automotive exterior systems. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides a two-color extruded lampshade for light distribution and protection of a soft light guide used in an automobile exterior system.

[0004] The utility model provides a double-color extruded lampshade, comprising a lampshade body and a fixing bracket for mounting the lampshade body; the lampshade body comprises an opaque base portion and a transparent light-transmitting portion, the base portion and the light-transmitting portion are integrally formed by a double-color extrusion process; the base portion is in a strip shape as a whole, the light-transmitting portion is arranged on one side in the width direction of the base portion and extends along the length direction of the base portion, and a through groove for a soft light guide to pass through is formed inside the light-transmitting portion along its length direction;

[0005] The fixing bracket is arranged on the vehicle body, and a gap is formed between the fixing bracket and the vehicle body for the base part to be inserted; a flange is arranged on the side of the base part away from the light-transmitting part, and a limiting protrusion for engaging with the flange is arranged on the fixing bracket.

[0006] Optionally, the light-transmissive portion protrudes from the base portion in the opposite direction of the flange.

[0007] Optionally, a plurality of positioning grooves are provided on the base portion.

[0008] Optionally, a plurality of weakening grooves are provided on the base portion.

[0009] Optionally, notch areas are provided at both ends of the base portion in the length direction.

[0010] Optionally, the base portion is made of opaque PA12 material, and the light-transmitting portion is made of transparent PA12 material.

[0011] Optionally, the through groove is configured to conform to the soft light guide and has a clearance fit.

[0012] The embodiments of the present utility model have the following beneficial effects:

[0013] 1. The lampshade body includes an opaque base part and a transparent light-transmitting part. A through groove is formed inside the light-transmitting part for the soft light guide to pass through, and the soft light guide can be light-distributed and protected through the light-transmitting part; a flange is provided on the base part, which can be snap-fitted with the limiting protrusion on the fixed bracket, and is easy to install;

[0014] 2. The base part and the light-transmitting part are integrally formed by a two-color extrusion process, which significantly simplifies the mold size, saves production costs, shortens the production cycle, and reduces the risk of shrinkage and deformation of the appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of a lampshade body in an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the unfolded state of the lampshade body in the embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the assembly state of the lampshade body in the embodiment of the utility model;

[0020] The numbers in the figure represent:

[0021] 1. Fixed bracket; 2. Base part; 3. Light-transmitting part; 4. Soft light guide; 5. Through groove; 6. Car body; 7. Flanged edge; 8. Limiting protrusion; 9. Limiting step; 10. Positioning groove; 11. Weakened groove; 12. Notch area; 13. Sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0023] See also Figure 1 , Figure 2 As shown, an embodiment of the utility model provides a two-color extruded lampshade, including a lampshade body and a fixing bracket 1 for mounting the lampshade body. The lampshade body includes an opaque base portion 2 and a transparent light-transmitting portion 3, the base portion 2 is in a strip shape as a whole, the light-transmitting portion 3 is arranged on one side in the width direction of the base portion 2 and extends along the length direction of the base portion 2 (that is, the length directions of the base portion 2 and the light-transmitting portion 3 are consistent), and a through groove 5 for the soft light guide 4 to pass through is formed inside the light-transmitting portion 3 along its length direction. Specifically, the through groove 5 is configured to imitate the soft light guide 4 and the clearance is matched, so that the soft light guide 4 can be conveniently passed through the light-transmitting portion 3 through the through groove 5, so as to utilize the light-transmitting portion 3 to distribute light and protect the soft light guide 4.

[0024] The fixing bracket 1 is mounted on the vehicle body 6 by means of clamping, bolting, etc. (as a reference example, Figure 1 The vehicle body 6 in the figure is specifically a grille of a car), and a gap is formed between the fixing bracket 1 and the vehicle body 6 for the base 2 to be inserted. A flange 7 is provided on the side of the base 2 away from the light-transmitting portion 3, and a limiting protrusion 8 for engaging with the flange 7 is provided on the fixing bracket 1. The base 2 is inserted between the fixing bracket 1 and the vehicle body 6, and the flange 7 of the base 2 is engaged with the limiting protrusion 8 on the fixing bracket 1, so that the lampshade body can be assembled on the vehicle body 6, and the installation is convenient.

[0025] Furthermore, the light-transmitting portion 3 protrudes from the base portion 2 in the opposite direction of the flange 7 to form a limiting step 9 in the opposite direction of the flange 7 on the other side opposite to the flange 7. When the lampshade body is snap-fitted and installed to the vehicle body 6, the limiting step 9 can abut against the vehicle body 6 and cooperate with the flange 7 to position the base portion 2 in the width direction of the base portion 2.

[0026] Further, such as Figure 3As shown, the embodiment of the utility model is provided with a plurality of positioning grooves 10 on the base 2, and the base 2 can be positioned in the length direction of the base 2 through the positioning grooves 10. The base 2 is also provided with a plurality of weakening grooves 11, which facilitates bending the lampshade body into a shape matching the shape of the vehicle body 6 during assembly, so the number and position of the weakening grooves 11 can be specifically set according to the position where the lampshade body needs to be bent. Notch areas 12 are provided at both ends of the base 2 in the length direction, which facilitates welding with the sleeves 13 at both ends of the soft light guide 4 in the later stage of assembly (such as Figure 4 shown).

[0027] The base part 2 and the light-transmitting part 3 in the embodiment of the utility model are integrally formed by a two-color extrusion process. Compared with the traditional two-color injection molding process, the two-color extrusion process can simplify the mold size and save production costs. In addition, the two-color extrusion process can be formed in one step, shortening the production cycle and reducing the risk of shrinkage and deformation of the appearance. For reference, the base part 2 in the embodiment of the utility model is made of opaque PA12 material, and the light-transmitting part 3 is made of transparent PA12 material.

[0028] Correspondingly, the embodiment of the utility model also provides a production process of a two-color extruded lampshade, which is used to produce the lampshade body as described above, and mainly includes the following steps:

[0029] a. The lampshade body is formed by one-piece extrusion using a two-color extrusion process;

[0030] b. Cooling the extruded lampshade body through a water tank;

[0031] c. The cooled lampshade body is pulled to the punching mechanism by the pulling mechanism for punching, the lampshade body is cut into the required length and the positioning groove 10, the weakened groove 11, the notch area 12 and other features are punched out on the base part 2.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present invention. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A two-color extruded lampshade, characterized in that: The invention comprises a lampshade body and a fixing bracket for mounting the lampshade body; the lampshade body comprises an opaque base part and a transparent light-transmitting part, and the base part and the light-transmitting part are integrally formed by a two-color extrusion process; the base part is in a strip shape as a whole, the light-transmitting part is arranged on one side in the width direction of the base part and extends along the length direction of the base part, and a through groove for a soft light guide to pass through is formed inside the light-transmitting part along its length direction; The fixing bracket is arranged on the vehicle body, and a gap is formed between the fixing bracket and the vehicle body for the base part to be inserted; a flange is arranged on the side of the base part away from the light-transmitting part, and a limiting protrusion for engaging with the flange is arranged on the fixing bracket.

2. The double-color extruded lampshade according to claim 1, characterized in that: The light-transmitting portion protrudes from the base portion in the opposite direction of the flange.

3. The double-color extruded lampshade according to claim 1, characterized in that: The base part is provided with a plurality of positioning grooves.

4. The double-color extruded lampshade according to claim 1, characterized in that: A plurality of weakening grooves are arranged on the base part.

5. The double-color extruded lampshade according to claim 1, characterized in that: Notch areas are provided at both ends of the base portion in the length direction.

6. The double-color extruded lampshade according to claim 1, characterized in that: The base part is made of opaque PA12 material, and the light-transmitting part is made of transparent PA12 material.

7. The double-color extruded lampshade according to claim 1, characterized in that: The through groove is configured to conform to the soft light guide and has clearance fit.

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