Light guide column light leakage prevention fixing structure

Abstract

The utility model relates to the technical field of light guide assemblies, in particular to a light guide column light leakage prevention fixing structure which comprises a front shell, a rear cover, a circuit board, an LED and a light sensing area, the front shell is provided with a light through hole penetrating through the two sides of the front shell, the inner side of the front shell is provided with a fixing frame surrounding the light through hole, and a shading silica gel pad matched with the fixing frame is installed in the fixing frame. A mounting groove is formed in the shading silica gel pad, and an accommodating channel for communicating the light through hole with the mounting groove is formed in the shading silica gel pad; a light guide column is clamped in the containing channel, one end of the light guide column penetrates through the light through hole to be flush with the outer side of the front shell, the other end of the light guide column is arranged in the installation groove, the end of the light guide column right faces the light sensing area, and a light source part of an LED is arranged in the installation groove and arranged on one side of the light guide column. A limiting effect can be achieved when the shading silica gel pad is installed, so that the light guide column installed in the containing channel directly transmits a light source to the light through hole of the front shell for light source output.

Description

Technical Field

[0001] The utility model relates to the technical field of light guide components, in particular to a light guide column anti-light leakage fixing structure. Background Art

[0002] A light guide is a structural component that guides the light emitted by an LED (light emitting diode) light source from a PCB (printed circuit board) to the front panel or a preset light-emitting position. This structural component is usually made of optical materials such as acrylic resin, polycarbonate, epoxy resin and glass.

[0003] At present, the design of light guide column is widely used, and most electronic products have light guide design. When a product has both a light-sensing area and an LED, for the sake of aesthetics, generally only one hole is left on the appearance surface. Since the light-sensing area needs to directly receive the external light to determine the intensity of the external light, the appearance hole can only serve the light-sensing area first, so the LED can only transmit light to the outside from the side through the light guide column. However, most traditional light guide columns are glued to the assembly platform, which makes it difficult to align the light guide column with the light hole, and the accuracy is difficult to control, resulting in low assembly efficiency; and the light guide column is easy to slip off the assembly bracket, and the structural stability is poor. Utility Model Content

[0004] The utility model aims to provide a light guide column anti-light leakage fixing structure to solve the problems that most traditional light guide columns are glued to an assembly platform by glue, which leads to poor precision, low assembly efficiency and poor structural stability.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A light guide column anti-light leakage fixing structure comprises a front shell, a rear cover, a circuit board, an LED and a light sensing area, the front shell is provided with a light through hole passing through both sides thereof, a fixing frame is provided on the inner side of the front shell to enclose the light through hole, a light-shielding silicone pad adapted to the light guide column is installed in the fixing frame, a mounting groove is provided in the light-shielding silicone pad, and a receiving channel for connecting the light through hole with the mounting groove is provided on the light-shielding silicone pad; a light guide column is clamped in the receiving channel, one end of the light guide column passes through the light through hole and is arranged flush with the outer side of the front shell, and the other end is placed in the mounting groove, and its end is arranged opposite to the light sensing area, the light source part of the LED is placed in the mounting groove and is arranged on one side of the light guide column.

[0007] A further technical solution is that an annular groove is opened on the inner side of the front shell in the fixed frame, the annular groove encloses the light-through hole, and a rubber ring matching the annular groove is convexly provided on the side of the light-shielding silicone pad close to the light-through hole. When the light-shielding silicone pad is arranged in the fixed frame, the rubber ring is in close contact with the inner wall of the annular groove.

[0008] A further technical solution is that the rubber ring and the light-shielding silicone pad are integrally formed.

[0009] A further technical solution is that the light guide column includes a light input end and a light output end, and a sealing groove is provided at one end of the light input end close to the light output end, the sealing groove is arranged to enclose the outer side of the light output end, a sealing ring is provided on a light-shielding silicone pad in the installation groove, and the sealing ring encloses a receiving channel. When the light guide column is clamped in the receiving channel, the sealing ring is placed in the sealing groove and is in close contact with the groove wall of the sealing groove.

[0010] A further technical solution is that the sealing ring and the light-shielding silicone pad are integrally formed.

[0011] Compared with the prior art, the beneficial effects of the utility model are: 1. By setting a fixed frame shading silicone pad, it can play a limiting role when installing the shading silicone pad, so that the receiving channel of the shading silicone pad is aligned with the light-through hole, so that the light guide column installed in the receiving channel directly transmits the light source to the light-through hole of the front shell for light source output, avoiding low installation efficiency due to poor control of precision during installation.

[0012] 2. The light guide column is directly installed in the receiving channel, which simplifies the installation process of the light guide column. At the same time, the light-shielding silicone pad can be used for light shielding to avoid light leakage from the light guide column, thereby improving the light-shielding effect of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of a light leakage prevention fixing structure of a light guide column of the utility model.

[0014] Figure 2 This is a schematic diagram of the connection between the front shell, the fixing frame, the light-shielding silicone pad, the LED and the light guide column of the utility model.

[0015] Figure 3 For this utility model Figure 1 Enlarged view of point A in the middle.

[0016] Icon: 1-front shell, 2-back cover, 3-circuit board, 4-LED, 5-light sensing area, 6-light hole, 7-fixing frame, 8-light-shielding silicone pad, 9-installation groove, 10-accommodation channel, 11-light guide column, 12-light source part, 13-ring groove, 14-rubber ring, 15-light input end, 16-light output end, 17-sealing groove, 18-sealing ring. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Example:

[0019] See also Figures 1 to 3 The utility model shows a light guide column anti-light leakage fixing structure, comprising a front shell 1, a rear cover 2, a circuit board 3, an LED 4 and a light sensing area 5. The rear cover 2 is used to open and close the front shell 1. The circuit board 3 is arranged inside the front shell 1. The LED 4 and the light sensing area 5 are both arranged on the circuit board 3 and face the inside of the front shell 1. The front shell 1 is provided with a light through hole 6 that runs through both sides thereof. The inside of the front shell 1 is provided with a fixing frame 7 to enclose the light through hole 6. A light-shielding silicone pad 8 adapted thereto is installed in the fixing frame 7. The light-shielding silicone pad 8 is made of black silicone, so as to play a light-shielding role. The light-shielding silicone pad 8 is made of silicone material. , so it can be installed in the fixing frame 7 with interference fit. During actual installation, glue can also be used to assist in fixing. A mounting groove 9 is provided in the light-shielding silicone pad 8, and a receiving channel 10 for connecting the light-through hole 6 with the mounting groove 9 is opened on the light-shielding silicone pad 8; a light guide column 11 is carded in the receiving channel 10. Since the light-shielding silicone pad 8 is made of silicone material, it has elasticity, so the light guide column 11 can be stably interference fit in the receiving channel 10. One end of the light guide column 11 passes through the light-through hole 6 and is flush with the outer side of the front shell 1, and the other end is placed in the mounting groove 9, and its end is arranged facing the light sensing area 5. LED 4 The light source part 12 is placed in the installation groove 9 and is arranged on one side of the light guide column 11. In actual use, by setting the fixing frame 7 and the light-shielding silicone pad 8, a limiting effect can be played when installing the light-shielding silicone pad 8, so that the receiving channel 10 of the light-shielding silicone pad 8 is aligned with the light-through hole 6, so that the light guide column 11 installed in the receiving channel 10 directly transmits the light source to the light-through hole 6 of the front shell 1 for light source output, avoiding low installation efficiency due to poor precision control during installation; the light guide column 11 is directly clamped and installed in the receiving channel 10, which simplifies the installation process of the light guide column 11, and the light-shielding silicone pad 8 can be Shielding can prevent light leakage from the light guide column 11, thereby improving the shading effect of the product; placing one end of the light guide column 11 inside the installation groove 9 directly opposite the light sensing area 5 can ensure that the light sensing area 5 directly receives external light through the light guide column 11, and then determine the intensity of the external light; placing the light source part 12 of LED4 in the installation groove 9 on the shading silicone pad 8, the shading silicone pad 8 can perform shading treatment on it to prevent the light source from leaking to the outside through the shell, and at the same time, the installation groove 9 can prevent the light source from diverging, so that the light guide column 11 can easily receive the light source of LED4, and then output the light source.

[0020] See also Figure 1 , Figure 3As shown, an annular groove 13 is opened on the inner side of the front shell 1 in the fixed frame 7, and the annular groove 13 is arranged to enclose the light-through hole 6. A rubber ring 14 adapted to the annular groove 13 is convexly provided on the side of the light-shielding silicone pad 8 close to the light-through hole 6. When the light-shielding silicone pad 8 is arranged in the fixed frame 7, the rubber ring 14 is in close contact with the inner wall of the annular groove 13. By providing the annular groove 13 and the rubber ring 14, it can be prevented that external water penetrates through the gap between the light-shielding silicone pad 8 and the inner side of the front shell 1 and affects the devices inside the front shell 1.

[0021] The rubber ring 14 and the light-shielding silicone pad 8 are integrally formed. The integrally formed structure eliminates the need to manufacture and install the rubber ring 14 separately, which can greatly simplify the manufacturing process and make installation more convenient, thereby effectively improving assembly efficiency and further improving work efficiency.

[0022] See also Figure 1 , Figure 3 It is shown that the light guide column 11 includes a light input end 15 and a light output end 16. A sealing groove 17 is provided at one end of the light input end 15 close to the light output end 16. The sealing groove 17 is arranged to enclose the outer side of the light output end 16. A sealing ring 18 is provided on the light-shielding silicone pad 8 in the installation groove 9. The sealing ring 18 is arranged to enclose the receiving channel 10. When the light guide column 11 is clamped in the receiving channel 10, the sealing ring 18 is placed in the sealing groove 17 and is in close contact with the groove wall of the sealing groove 17. By providing the sealing groove 17 and the sealing ring 18, external water can be prevented from infiltrating from the gap between the light guide column 11 and the light-shielding silicone pad 8. Combined with the annular groove 13 and the rubber ring 14 in the above-mentioned embodiment, a waterproof effect is achieved, thereby improving practicality.

[0023] The sealing ring 18 and the light-shielding silicone pad 8 are an integrally formed structure. With the integrally formed structure, there is no need to make and install the sealing ring 18 separately, which can greatly simplify the manufacturing process and make the installation more convenient, thereby effectively improving the assembly efficiency and further improving the work efficiency. Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in the present application. More specifically, within the scope of the disclosure, drawings and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the deformation and improvement of the components and / or layout, other uses will also be obvious to those skilled in the art.

Claims

1. A light guide column anti-light leakage fixing structure, comprising a front shell (1), a rear cover (2), a circuit board (3), an LED (4) and a light sensing area (5), characterized in that: The front shell (1) is provided with a light-through hole (6) penetrating through both sides thereof; a fixing frame (7) is provided inside the front shell (1) to surround the light-through hole (6); a light-shielding silicone pad (8) adapted thereto is installed inside the fixing frame (7); a mounting groove (9) is provided inside the light-shielding silicone pad (8); a receiving channel (10) is provided on the light-shielding silicone pad (8) for connecting the light-through hole (6) with the mounting groove (9); a light-guiding column (11) is provided inside the receiving channel (10); one end of the light-guiding column (11) penetrates through the light-through hole (6) and is arranged flush with the outer side of the front shell (1); the other end is arranged in the mounting groove (9), and the end portion thereof is arranged facing the light-sensing area (5); a light source portion (12) of the LED (4) is arranged in the mounting groove (9) and is arranged on one side of the light-guiding column (11).

2. The light guide column anti-light leakage fixing structure according to claim 1, characterized in that: An annular groove (13) is provided on the inner side of the front shell (1) in the fixing frame (7), and the annular groove (13) is arranged to surround the light-through hole (6). A rubber ring (14) matching the annular groove (13) is protruded on one side of the light-shielding silicone pad (8) close to the light-through hole (6). When the light-shielding silicone pad (8) is arranged in the fixing frame (7), the rubber ring (14) is in close contact with the inner wall of the annular groove (13).

3. The light guide column anti-light leakage fixing structure according to claim 2, characterized in that: The rubber ring (14) and the light-shielding silicone pad (8) are an integrally formed structure.

4. The light guide column anti-light leakage fixing structure according to claim 1, characterized in that: The light guide column (11) comprises a light input end (15) and a light output end (16); a sealing groove (17) is provided at one end of the light input end (15) close to the light output end (16); the sealing groove (17) is arranged to surround the outer side of the light output end (16); a sealing ring (18) is provided in the mounting groove (9) on the light shielding silicone pad (8); the sealing ring (18) is arranged to surround the receiving channel (10); when the light guide column (11) is clamped in the receiving channel (10), the sealing ring (18) is placed in the sealing groove (17) and is in close contact with the groove wall of the sealing groove (17).

5. The light guide column anti-light leakage fixing structure according to claim 4, characterized in that: The sealing ring (18) and the light-shielding silicone pad (8) are an integrally formed structure.

Images