Light leakage prevention double-shot molding transparent shell

Abstract

The utility model provides a light leakage prevention double-shot molding transparent shell, which relates to the technical field of transparent shells, and comprises an outer shell and an inner shell, the surface of the outer shell is provided with a light emitting area, and the inner wall of the outer shell is provided with a shading rectangular groove. Light leakage of the transparent shell is usually caused by untight combination of two materials or unreasonable structural design. Through reasonable structural design and process optimization, the light leakage problem of the double-color injection molding transparent shell can be effectively solved, the key point lies in design of a combination part and control over the injection molding process, it is ensured that the two materials are tightly combined, and light rays are prevented from penetrating. However, when a decorative composite board is additionally arranged in a transparent shell material area, a light guide body is equivalently added, a light source penetrates through a transparent shell, and weak light sources are guided out from the periphery of the composite board under the light guide of the composite board, so that light leakage of a product is caused, the low-cost feeling of reserving gaps is generated when the product is used, and the user experience is reduced.

Description

Technical Field

[0001] This utility model relates to the field of transparent shell technology, and in particular to a light-proof two-color injection molded transparent shell. Background Technology

[0002] Two-color injection molded transparent cases are mobile phone protective cases made with a specific injection molding process. They have good transparency and can clearly show the original appearance and color of the phone, allowing users to maximize the display of the phone's design aesthetics when using the phone. It's like putting an "invisible coat" on the phone. The surface is relatively wear-resistant and not easily scratched. Even after long-term use or when placed with hard objects such as keys, it can maintain a good appearance.

[0003] In existing technologies, light leakage in transparent shells during two-color injection molding is usually caused by poor bonding between the two materials or unreasonable structural design. This problem can be effectively solved through proper structural design and process optimization. The key lies in the design of the bonding area and the control of the injection molding process to ensure a tight bond between the two materials, preventing light penetration. However, when a decorative composite panel is added to the transparent shell area, it's equivalent to adding a light guide. Light passes through the transparent shell, and under the light guide of the composite panel, a weak light source is emitted from around the composite panel, causing light leakage in the product. This creates a cheap, gap-like appearance during use, reducing the user experience. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a light-proof, two-color injection-molded transparent shell.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a light-proof, two-color injection-molded transparent shell, comprising an outer shell and an inner shell. The outer shell has a light-emitting area on its surface, and a light-shielding groove is formed on the inner wall of the outer shell. An opaque material is nested in the inner wall of the light-shielding groove. A connector is fixed to the surface of the inner shell, and a light-shielding polygonal rib is fixed to one end of the connector. The surface of the light-shielding polygonal rib is nested with the surface of the outer shell.

[0006] Preferably, side reinforcing ribs are linearly arrayed and fixed on both sides of the inner wall of the outer shell, and weight-reducing grooves are provided on both sides of the inner wall of the outer shell. Inner trapezoidal reinforcing ribs are linearly arrayed and fixed on the inner wall of the weight-reducing grooves. A fixing buckle is fixed at one end of the inner wall of the outer shell. In the prior art, during the use of injection-molded transparent shells, the edges are often subjected to outward or inward forces due to the installation and disassembly operations. In daily life, mobile phones or other electronic devices are bound to be dropped. Whenever this happens, the edges of the transparent shell are always the first to be impacted, making them more prone to damage or cracks. This damage not only affects the overall aesthetics of the transparent shell, but also greatly reduces its protective function for the device. Over time, repeated damage to the edges of the transparent shell will significantly reduce the service life of the entire transparent shell, thereby increasing the cost of use and posing potential safety hazards to the device itself. To address this problem, this utility model solves the problem by installing side reinforcing ribs, which reduces the weight of the device through weight-reducing grooves and increases the strength of the components themselves through side reinforcing ribs and inner trapezoidal reinforcing ribs, allowing more parts of the components to share the stress, thereby improving the service life of the device.

[0007] Preferably, an inner soft rubber ring is fixed to the inner wall of the outer shell, and an outer soft rubber ring is fixed to the inner wall of the outer shell. This utility model solves the problem by installing an inner soft rubber ring, which adds a soft rubber ring around the light source of the transparent plastic to form a physical barrier, blocking the light source from the bottom and the side, achieving a double light-blocking effect, blocking the light propagation path, and blocking the secondary light guiding of the light source through the composite board. Moreover, the light leakage problem is solved by modifying the mold without increasing the cost, thereby reducing the production cost.

[0008] Preferably, the outer shell surface is provided with a linear array of side ladder grooves, and a ladder limiter is slidably connected to the inner wall of the side ladder groove. One end of the ladder limiter is fixed to the surface of the inner shell, thereby limiting the possible displacement that may occur after the outer shell and the inner shell are combined by the ladder limiter and the side ladder groove, thus improving the service life of the equipment.

[0009] Preferably, a raised sealing strip is fixed to the top of the outer casing, which increases the sealing performance of the equipment and improves its service life.

[0010] Preferably, the bottom of the outer shell is provided with a positioning hole, and a positioning post is slidably connected to the inner wall of the positioning hole. The bottom of the positioning post is fixed to the top of the inner shell, which realizes that the positioning post facilitates the positioning and assembly of workers and automated equipment, thereby improving work efficiency.

[0011] Preferably, the bottom of the outer shell is provided with a positioning wing groove, and a limiting inner wing plate is slidably connected to the inner wall of the positioning wing groove. One end of the limiting inner wing plate is fixed to the surface of the inner shell, thereby further preventing the equipment from being misaligned during installation and improving the yield rate.

[0012] Beneficial effects:

[0013] 1. In existing technologies, light leakage in transparent shells during two-color injection molding is usually caused by poor bonding between the two materials or unreasonable structural design. This problem can be effectively solved through reasonable structural design and process optimization. The key lies in the design of the bonding area and the control of the injection molding process to ensure a tight bond between the two materials and block light penetration. However, when a decorative composite panel is added to the transparent shell area, it is equivalent to adding a light guide. Light passes through the transparent shell, and under the light guide of the composite panel, a weak light source is emitted from around the composite panel, causing light leakage in the product. This results in a cheap feel with gaps during use, reducing the user experience. To address this problem, this invention uses a multi-sided light-shielding rib design. A stepped structure is used at the junction of the transparent inner shell and the opaque outer shell, using multiple layers of shielding to reduce light leakage. The addition of multi-sided light-shielding ribs at the junction forms a physical barrier, blocking the light propagation path. A light-shielding groove is designed on the inner side of the transparent shell, embedding opaque material to create a double light-shielding effect, thereby improving the user experience.

[0014] 2. In existing technologies, during the use of injection-molded transparent shells, the edges are frequently subjected to outward or inward forces due to installation and disassembly operations. In daily life, mobile phones or other electronic devices inevitably fall, and the edges of the transparent shell are always the first to be impacted, making them more prone to damage or cracks. This damage not only affects the overall aesthetics of the transparent shell but also significantly reduces its protective function for the device. Over time, repeated damage to the edges of the transparent shell will significantly reduce the service life of the entire transparent shell, thereby increasing usage costs and posing potential safety hazards to the device itself. To address this problem, this utility model adopts the method of installing side reinforcing ribs, which reduces the weight of the device through weight-reducing grooves and increases the strength of the components themselves through side reinforcing ribs and inner ladder reinforcing ribs, allowing more parts of the components to share the stress, thereby improving the service life of the device.

[0015] 3. This utility model solves the problem by installing an inner soft rubber ring, which adds a soft rubber ring around the light source of the transparent plastic to form a physical barrier, blocking the light source from the bottom and the side, achieving a double light-blocking effect, blocking the light propagation path, and blocking the secondary light guiding of the light source through the composite board. Moreover, the light leakage problem is solved by modifying the mold without increasing the cost, thus achieving the effect of reducing production costs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2This is a three-dimensional structural diagram of the inner wing plate of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the inner soft rubber ring of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the light-shielding rectangular groove of this utility model;

[0020] Figure 5 This is an exploded view of the side ladder slide groove of this utility model;

[0021] Figure 6 This is an exploded view of the ladder limiter of this utility model.

[0022] Legend:

[0023] 1. Outer shell; 101. Inner shell; 102. Light-emitting area; 2. Side reinforcing rib; 201. Weight reduction groove; 202. Inner ladder reinforcing rib; 203. Fixing buckle; 3. Light-shielding rectangular groove; 301. Connector; 302. Light-shielding polygonal rib; 4. Side convex sealing strip; 5. Inner soft rubber ring; 501. Outer soft rubber ring; 6. Ladder limiter; 601. Side ladder slide groove; 7. Positioning post; 701. Positioning hole; 8. Restricting inner wing plate; 801. Positioning wing groove. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific implementation examples:

[0027] Reference Figure 1-6A light-proof, two-color injection-molded transparent shell includes an outer shell 1 and an inner shell 101. The surface of the outer shell 1 is provided with a light-emitting area 102. The inner wall of the outer shell 1 is provided with a light-shielding rectangular groove 3. The inner wall of the light-shielding rectangular groove 3 is nested with an opaque material. A connector 301 is fixed to the surface of the inner shell 101. One end of the connector 301 is fixed with a light-shielding polygonal rib 302. The surface of the light-shielding polygonal rib 302 is nested with the surface of the outer shell 1. Both sides of the inner wall of the outer shell 1 are linearly arrayed with side reinforcing ribs 2, and both sides of the inner wall of the outer shell 1 are provided with weight-reducing grooves 201. The inner wall of the weight-reducing grooves 201 is linearly arrayed with inner ladder reinforcing ribs 202. One end of the inner wall of the outer shell 1 is fixed with a fixing buckle 203. During the use of the injection-molded transparent shell, due to its installation and disassembly operations, the edges are often subjected to outward or inward forces. In daily life, mobile phones or other electronic devices are bound to be dropped. Whenever this happens, the edges of the transparent shell are always the first to be impacted, making them more prone to damage or cracks. This damage not only affects the overall aesthetics of the transparent shell, but also greatly reduces its protective function for the device. Over time, repeated damage to the edges of the transparent shell will significantly reduce the service life of the entire transparent shell, thereby increasing the cost of use and posing potential safety hazards to the device itself. The method of installing side reinforcing ribs 2 solves this problem. It reduces the weight of the device through the weight-reducing grooves 201 and increases the strength of the components themselves through the side reinforcing ribs 2 and inner ladder reinforcing ribs 202, allowing more parts of the components to share the stress, thereby improving the service life of the device.

[0028] An inner soft rubber ring 5 and an outer soft rubber ring 501 are fixed to the inner wall of the outer shell 1. This utility model solves the problem by installing the inner soft rubber ring 5, which adds a soft rubber ring around the light source of the transparent plastic to form a physical barrier, blocking the light source from the bottom and the side, achieving a double light-blocking effect, blocking the light propagation path, and blocking the secondary light guiding of the light source through the composite plate. Moreover, the light leakage problem is solved by modifying the mold without increasing the cost, thus reducing the production cost. The surface of the outer shell 1 has a linear array of side ladder grooves 601. A ladder limiter 6 is slidably connected to the inner wall of the side ladder groove 601. One end of the ladder limiter 6 is fixed to the surface of the inner shell 101. The ladder limiter 6 and the side ladder groove 601 limit the possible displacement that may occur after the outer shell 1 and the inner shell 101 are combined, thereby improving the service life of the equipment. A side protrusion sealing strip 4 is fixed to the top of the outer shell 1, which increases the sealing performance of the equipment and improves its service life. The bottom of the outer shell 1 has a positioning hole 701, and a positioning post 7 is slidably connected to the inner wall of the positioning hole 701. The bottom of the positioning post 7 is fixed to the top of the inner shell 101, which facilitates positioning and assembly by workers and automated equipment, thereby improving work efficiency. The bottom of the outer shell 1 has a positioning wing groove 801, and a limiting inner wing plate 8 is slidably connected to the inner wall of the positioning wing groove 801. One end of the limiting inner wing plate 8 is fixed to the surface of the inner shell 101, which further prevents equipment installation misalignment and improves the yield rate.

[0029] The working principle of this utility model is as follows: A stepped structure is adopted at the junction of the transparent inner shell 101 and the opaque outer shell 1 to reduce light leakage by using multiple layers of shielding. Light-shielding polygonal ribs 302 are added at the junction to form a physical barrier and block the light propagation path. Light-shielding rectangular grooves 3 are designed on the inner side of the transparent shell and embedded with opaque material to form a double light-shielding effect. Soft rubber rings are added around the light source of the transparent plastic to form a physical barrier, blocking the light source from the bottom and the side, achieving a double light-shielding effect, blocking the light propagation path, and blocking the secondary light guiding of the light source through the composite plate. Moreover, the light leakage problem is solved by modifying the mold without increasing the cost.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A light-proof, two-color injection-molded transparent shell, comprising an outer shell (1) and an inner shell (101), wherein the surface of the outer shell (1) is provided with a light-emitting area (102), characterized in that: The inner wall of the outer shell (1) is provided with a light-shielding groove (3), and the inner wall of the light-shielding groove (3) is nested with an opaque material. A connector (301) is fixed on the surface of the inner shell (101), and a light-shielding polygonal rib (302) is fixed at one end of the connector (301). The surface of the light-shielding polygonal rib (302) is nested with the surface of the outer shell (1).

2. The light-leakage-proof dual-color injection-molded transparent shell according to claim 1, characterized in that: The inner walls of the outer shell (1) are linearly arrayed with side reinforcing ribs (2) on both sides. The inner walls of the outer shell (1) are provided with weight-reducing grooves (201) on both sides. The inner walls of the weight-reducing grooves (201) are linearly arrayed with inner ladder reinforcing ribs (202). The inner walls of the outer shell (1) are fixed with a fixing buckle (203) at one end.

3. The light-leakage-proof dual-color injection-molded transparent shell according to claim 1, characterized in that: An inner soft rubber ring (5) is fixed to the inner wall of the outer shell (1), and an outer soft rubber ring (501) is fixed to the inner wall of the outer shell (1).

4. The light-leakage-proof dual-color injection-molded transparent shell according to claim 1, characterized in that: The top of the outer casing (1) is fixed with a side-mounted sealing strip (4).

5. The light-leakage-proof dual-color injection-molded transparent shell according to claim 1, characterized in that: The outer shell (1) has a linear array of side ladder grooves (601) on its surface. A ladder limiter (6) is slidably connected to the inner wall of the side ladder groove (601). One end of the ladder limiter (6) is fixed to the surface of the inner shell (101).

6. The light-leakage-proof dual-color injection-molded transparent shell according to claim 1, characterized in that: The bottom of the outer shell (1) is provided with a positioning hole (701), and a positioning post (7) is slidably connected to the inner wall of the positioning hole (701). The bottom of the positioning post (7) is fixed to the top of the inner shell (101).

7. The light-leakage-proof dual-color injection-molded transparent shell according to claim 1, characterized in that: The bottom of the outer shell (1) is provided with a positioning wing groove (801), and a limiting inner wing plate (8) is slidably connected to the inner wall of the positioning wing groove (801). One end of the limiting inner wing plate (8) is fixed to the surface of the inner shell (101).

Images