A foldable light blocking structure for a light guide headend

Abstract

A foldable light shielding structure for a light guide head end, comprising a light guide and a light shielding assembly connected to the end of the light guide, the light shielding assembly comprising a light guide support, a folding rotating member and a shielding member connected in sequence, the light guide support and the shielding member being hingedly connected under the action of the folding rotating member; a containing cavity accommodating the end of the light guide is formed in the light guide support, and the folding rotating member is connected to the opening of the containing cavity; a clamping assembly is arranged on the light guide support, and a matching assembly for positioning and clamping with the clamping assembly is arranged on the shielding member; compared with the prior art, the end of the light guide is inserted into the light guide support, and the end of the light guide can be covered under the action of the light guide support and the shielding member by turning over the shielding member, the mixed light and color generated by the end of the light guide can be shielded, the shielding member does not interfere with the light guide during the turning over process, and the stable use of the light guide can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of ambient lighting technology, specifically to a foldable light-shielding structure for the end of a light guide head. Background Technology

[0002] Ambient light guides are key components in ambient lighting used to conduct light. They transmit and evenly distribute the light emitted by LED light sources to create specific lighting effects.

[0003] During the illumination process of ambient light guides, mixed-color stray light is usually generated at the light guide end. When the lampshade is in a light-transmitting state, the appearance of mixed-color stray light will affect the illumination effect of the ambient light.

[0004] In existing technologies, it is usually necessary to set a light-shielding component at the end of the light guide head to block the light transmission of the light guide. When an independent light-shielding component needs to be set at the light end of each light guide, the total number of parts of the overall ambient light increases, the number of installation steps increases, the difficulty of designing the overall structure of the ambient light in the early stage increases, the uncertainty of the later assembly increases, and the R&D cost and production management cost also increase.

[0005] Chinese patent CN206361583U discloses a light guide shielding structure for automotive lights, including an LED circuit board, an LED light source disposed on the LED circuit board, and a light guide tube covering the end face of the LED light source. The light guide shielding structure for automotive lights is characterized by further including a light guide shielding structure disposed on the LED circuit board, forming a boss in the middle and fitting the edge with the LED circuit board. The boss of the light guide shielding structure has a light guide mounting hole in the middle that can accommodate the light guide tube, and the end of the light guide tube is installed into the light guide mounting hole of the light guide shielding structure.

[0006] In the aforementioned structure, the light guide passes through the light-shielding structure, and the end of the light guide needs to be connected to the light source. This means that during installation, when multiple light guides are in place, they must first pass through the light-shielding structure, then connect them to the same circuit board, and finally lock the relative positions of the light-shielding structure and the circuit board. The overall installation process is cumbersome, time-consuming, and labor-intensive, affecting the overall installation efficiency. Furthermore, after the light-shielding structure is connected, it is difficult to individually test and replace the faulty light guide if it fails. Utility Model Content

[0007] The present invention aims to overcome the defects in the prior art and provide a foldable light-shielding structure for the light guide head end that is easy to install and convenient for subsequent maintenance and replacement of the light guide.

[0008] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a foldable light-shielding structure for the end of a light guide, comprising a light guide and a light-shielding component connected to the end of the light guide, the light-shielding component comprising a light guide support, a folding rotating component and a blocking component connected in sequence, the light guide support and the blocking component being hinged to open and close under the action of the folding rotating component; the light guide support has a receiving cavity formed therein to accommodate the end of the light guide, the folding rotating component being connected to the opening of the receiving cavity; the light guide support is provided with a snap-fit ​​component, and the blocking component is provided with a mating component that is positioned and snapped into the snap-fit ​​component.

[0009] As a preferred embodiment of this utility model, the light guide support is provided with a through hole for guiding the light to extend outward, and the through hole is located outside the opening and closing range of the shielding member.

[0010] As a preferred embodiment of this utility model, the light guide support has an external wiring cavity that communicates with the end of the receiving cavity, and the external wiring cavity is located outside the light-shielding range of the shielding member.

[0011] In a preferred embodiment of this utility model, the external wiring cavity and the folding rotating component are located at opposite ends of the optical guide support, and the snap-fit ​​assembly is located between the external wiring cavity and the folding rotating component.

[0012] As a preferred embodiment of this utility model, the cavity is provided with support ribs for supporting and limiting the light guide.

[0013] As a preferred embodiment of this utility model, the folding rotating component includes a foldable and rotatable flexible connecting arm, which is simultaneously connected to the light guide support and the shielding component.

[0014] As a preferred embodiment of this utility model, a trapezoidal opening groove is formed between the light guide support and the shielding member, corresponding to the flexible connecting arm.

[0015] In a preferred embodiment of this utility model, the snap-fit ​​assembly is formed on the outer wall of the light guide support member, and the snap-fit ​​assembly includes a first snap-fit ​​member, a second snap-fit ​​member, and a third snap-fit ​​member arranged along the length direction of the light guide support member. The mating assembly is formed on the outer wall of the shielding member, and the mating assembly includes a first mating member that engages with the first snap-fit ​​member, a second mating member that engages with the second snap-fit ​​member, and a third mating member that engages with the third snap-fit ​​member.

[0016] In a preferred embodiment of this utility model, the first snap-fit ​​component is snapped into contact with the first mating component, the second snap-fit ​​component is snapped into contact with the second mating component, and the third snap-fit ​​component is snapped into contact with the third mating component simultaneously.

[0017] As a preferred embodiment of this utility model, the light guide support, the folding and rotating component, and the shielding component are an integral structure formed by the same mold.

[0018] Compared with the prior art, in this application, the light guide head is inserted into the light guide support. By flipping the shield, the light guide head can be covered by the light guide support and the shield, thus blocking the mixed light and color noise generated at the light guide head. The shield does not interfere with the light guide during the flipping process, which can ensure the stable use of the light guide. Meanwhile, the light guide support, folding and rotating parts, and shielding parts are injection molded using the same mold, which reduces the number of molds and mold costs, improves assembly quality, and reduces manufacturing costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the open and closed state of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the installation of the support ribs; Figure 4 This is a schematic diagram showing the opening and closing states of the shielding component; Figure 5 This is a structural diagram of the snap-fit ​​component and the mating component; Figure 6 This is a structural schematic diagram of the folding and rotating component; Reference numerals: 1. Optical guide support; 11. Receiving cavity; 12. External wiring cavity; 13. Support rib; 14. Through hole; 2. Folding and rotating component; 21. Flexible connecting arm; 22. Trapezoidal opening slot; 3. Shielding component; 4. Optical guide; 5. Snap-fit ​​assembly; 51. First snap-fit ​​component; 52. Second snap-fit ​​component; 53. Third snap-fit ​​component; 6. Mating assembly; 61. First mating component; 62. Second mating component; 63. Detailed Implementation

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] like Figures 1-6 As shown, a foldable light-shielding structure for the end of a light guide includes a light guide 4 and a light-shielding assembly connected to the end of the light guide 4. The light-shielding assembly includes a light guide support 1, a folding rotating component 2, and a blocking component 3 connected in sequence. The light guide support 1 and the blocking component 3 are hinged together in an opening and closing manner under the action of the folding rotating component 2. A receiving cavity 11 is formed in the light guide support 1 to accommodate the end of the light guide 4, and the folding rotating component 2 is connected to the opening of the receiving cavity 11. A snap-fit ​​component 5 is provided on the light guide support 1, and a mating component 6 is provided on the blocking component 3 to be positioned and snapped into place with the snap-fit ​​component 5.

[0022] The end of the light guide 4 is installed inside the light guide support 1. By flipping the shield 3, the shield 3 and the light guide support 1 cover the end of the light guide 4. Thus, when the shield 3 is flipped so that the light guide support 1 is in the closed state, the light guide 4 end can be shielded to prevent stray light from spilling out. When the shield 3 is flipped so that the light guide support 1 is in the open state, the connection between the light guide 4 and the light source is met, as well as the installation requirements of the end of the light guide 4.

[0023] The light guide support 1 has a through hole 14 for extending the light guide 4 outward. The through hole 14 is located outside the opening and closing range of the shielding member 3. The light guide support 1 has an upward-opening receiving cavity 11 in the middle. The through hole 14 is formed at the bottom of the light guide support 1. Under the action of the folding and rotating member 2 connected to the opening of the receiving cavity 11, the hinge position of the shielding member 3 and the light guide support 1 is located at the opening of the receiving cavity 11. Thus, during the flipping and folding process of the shielding member 3, the normal operation of the light guide 4 extending outside the light guide support 1 is not affected.

[0024] An external wiring cavity 12 is formed inside the light guide support 1 and is connected to the end of the receiving cavity 11. The external wiring cavity 12 is located outside the light-shielding range of the shielding member 3. The receiving cavity 11 is used to install the light source and the light guide 4 for light transmission through the light source. The external wiring cavity 12 is used to install external wiring to supply power to the light source and meet the transmission requirements of the light guide 4.

[0025] The external wiring cavity 12 and the folding rotating part 2 are located at opposite ends of the light guide support 1. The snap-fit ​​assembly 5 is located between the external wiring cavity 12 and the folding rotating part 2. The number of external wiring cavities 12 is set according to actual needs and is connected to the same receiving cavity 11. Thus, when multiple light guides 4 are installed in the receiving cavity 11, the independent control of multiple light sources can be achieved under the action of multiple external wiring, thereby enabling different light guides 4 to achieve different ambient lighting effects.

[0026] The cavity 11 contains a support rib 13 for supporting and limiting the light guide 4. The support rib 13 is an arc-shaped structure with an upward opening. Under the action of the support rib 13, the position of the light guide 4 is limited and supported, ensuring the stable installation of the light guide 4 in the cavity 11.

[0027] The folding and rotating component 2 includes a foldable and rotatable flexible connecting arm 21. The flexible connecting arm 21 is connected to both the light guide support component 1 and the shielding component 3. The flexible connecting arm 21 is made of a flexible material similar to PP. During the flipping process of the shielding component 3, the elastic deformation of the flexible connecting arm 21 ensures that the light guide support component 1 and the shielding component 3 are connected through the flexible connecting arm 21, while also meeting the flipping requirements of the shielding component 3.

[0028] A trapezoidal opening groove 22 is formed between the light guide support 1 and the shielding member 3, corresponding to the flexible connecting arm 21, to ensure that there is no interference between the light guide support 1 and the shielding member 3 during the stacking process, thus meeting the stacking requirements of the light guide support 1 and the shielding member 3.

[0029] The snap-fit ​​assembly 5 is formed on the outer wall of the light guide support 1, and the snap-fit ​​assembly 5 includes a first snap-fit ​​member 51, a second snap-fit ​​member 52 and a third snap-fit ​​member 53 arranged along the length direction of the light guide support 1. The mating assembly 6 is formed on the outer wall of the shielding member 3, and the mating assembly 6 includes a first mating member 61 that engages with the first snap-fit ​​member 51, a second mating member 62 that engages with the second snap-fit ​​member 52 and a third mating member 63 that engages with the third snap-fit ​​member 53.

[0030] The number of snap-fit ​​parts and mating parts is set according to actual needs. The light guide support 1 and the shielding part 3 are provided with at least one set of snap-fit ​​parts and mating parts to meet the snap-fit ​​requirements of the light guide support 1 and the shielding part 3 in the stacked state.

[0031] The first snap fastener 51 is either a female snap fastener or a male snap fastener, and the first mating part 61 is another snap fastener structure that mates with the first snap fastener 51. Similarly, the second snap fastener 52 is either a female snap fastener or a male snap fastener, and the second mating part 62 is another snap fastener structure that mates with the second snap fastener 52. Similarly, the third snap fastener 53 is either a female snap fastener or a male snap fastener, and the third mating part 63 is another snap fastener structure that mates with the third snap fastener 53.

[0032] When the light guide support 1 and the shielding member 3 are stacked, the first snap-fit ​​member 51 snaps into the first mating member 61, the second snap-fit ​​member 52 snaps into the second mating member 62, and the third snap-fit ​​member 53 snaps into the third mating member 63 simultaneously, thereby locking the light guide support 1 and the shielding member 3.

[0033] The light guide support 1, the folding and rotating component 2, and the shielding component 3 are an integral structure formed by the same mold. The integral fabrication of the light guide support 1, the folding and rotating component 2, and the shielding component 3 is achieved by injection molding in the same mold.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0035] Although this document frequently uses reference numerals from the accompanying drawings, such as: light guide support 1, receiving cavity 11, external wiring cavity 12, support rib 13, through hole 14, folding rotating component 2, flexible connecting arm 21, trapezoidal opening slot 22, shielding component 3, light guide 4, snap-fit ​​assembly 5, first snap-fit ​​component 51, second snap-fit ​​component 52, third snap-fit ​​component 53, mating assembly 6, first mating component 61, second mating component 62, third mating component 63, etc., the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A foldable light-shielding structure for the end of a light guide, comprising a light guide (4) and a light-shielding assembly connected to the end of the light guide (4), characterized in that, The light-shielding assembly includes a light guide support (1), a folding and rotating component (2), and a blocking component (3) connected in sequence. The light guide support (1) and the blocking component (3) are hinged to open and close under the action of the folding and rotating component (2). The light guide support (1) has a receiving cavity (11) for accommodating the end of the light guide (4), and the folding and rotating component (2) is connected to the opening of the receiving cavity (11). The light guide support (1) is provided with a snap-fit ​​component (5), and the blocking component (3) is provided with a mating component (6) that is positioned and snapped with the snap-fit ​​component (5).

2. The foldable light-shielding structure for the end of a light guide head according to claim 1, characterized in that, The light guide support (1) has a through hole (14) for extending the light guide (4) outward, and the through hole (14) is located outside the opening and closing range of the shield (3).

3. A foldable light-shielding structure for an optical guide head end according to claim 1, characterized in that, The light guide support (1) has an external wiring cavity (12) that communicates with the end of the receiving cavity (11), and the external wiring cavity (12) is located outside the light-shielding range of the shielding member (3).

4. A foldable light-shielding structure for an optical guide head end according to claim 3, characterized in that, The external wiring cavity (12) and the folding rotating component (2) are located at opposite ends of the optical guide support (1), and the snap-fit ​​assembly (5) is located between the external wiring cavity (12) and the folding rotating component (2).

5. A foldable light-shielding structure for an optical guide head end according to claim 3, characterized in that, The cavity (11) contains a support rib (13) for supporting and limiting the light guide (4).

6. A foldable light-shielding structure for an optical guide head end according to claim 1, characterized in that, The folding rotating component (2) includes a foldable and rotatable flexible connecting arm (21), which is connected to both the light guide support (1) and the shielding component (3).

7. A foldable light-shielding structure for an optical guide head end according to claim 6, characterized in that, A trapezoidal opening groove (22) is formed between the light guide support (1) and the shielding member (3) corresponding to the flexible connecting arm (21).

8. A foldable light-shielding structure for an optical guide head end according to claim 1, characterized in that, The snap-fit ​​assembly (5) is formed on the outer wall of the light guide support (1), and the snap-fit ​​assembly (5) includes a first snap-fit ​​member (51), a second snap-fit ​​member (52) and a third snap-fit ​​member (53) arranged along the length direction of the light guide support (1). The mating assembly (6) is formed on the outer wall of the shielding member (3), and the mating assembly (6) includes a first mating member (61) that mats with the first snap-fit ​​member (51), a second mating member (62) that mats with the second snap-fit ​​member (52) and a third mating member (63) that mats with the third snap-fit ​​member (53).

9. A foldable light-shielding structure for an optical guide head end according to claim 8, characterized in that, The first snap-fit ​​component (51) snaps into the first mating component (61), the second snap-fit ​​component (52) snaps into the second mating component (62), and the third snap-fit ​​component (53) snaps into the third mating component (63) simultaneously.

10. A foldable light-shielding structure for an optical guide head end according to claim 1, characterized in that, The light guide support (1), the folding and rotating component (2), and the shielding component (3) are an integral structure formed by the same mold.

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