Light guide module

Abstract

A light guide module includes a base, a light guide bar and a snap fastener. The base includes an inner side surface and an inner tapered surface, the inner side surface is respectively connected to the inner tapered surface, the inner side surface includes a guide portion, and the inner tapered surface includes a first guide bevel, a second guide bevel and a positioning portion. The light guide bar includes an arc portion in the upper half and a tapered portion in the lower half, and the light guide bar is arranged on the base. The snap fastener includes a connecting arm, an elastic arm, a receiving hole and a limiting portion, the elastic arms extend outward from both sides of the connecting arm respectively, the receiving hole is located in the snap fastener to receive the light guide bar, and the limiting portions are respectively located on the outside of the elastic arms. The light guide bar is conveniently loaded and unloaded in the base by positioning or removing the light guide bar through the limiting portion of the snap fastener via the guiding portion, the first guide bevel and the second guide bevel of the base.

Description

Technical Field

[0001] The invention relates to a light guide module, in particular to a light guide module with a fixed light guide strip. Background Art

[0002] Many products on the market use light guide strips and fix them on the products, such as fixing them on the car body or headlights to enrich the shape of the vehicle. Or, fixing them on the lamps in entertainment venues to increase the entertainment atmosphere on site.

[0003] However, the light guide strip is usually fixed to the product by means of a tie band or screws, which makes the assembly and disassembly of the light guide strip difficult and time-consuming. Summary of the invention

[0004] According to some embodiments of the present invention, a light guide module is provided, comprising:

[0005] A base, comprising two inner side surfaces and two inner tapered surfaces, each of the inner side surfaces is respectively connected to each of the inner tapered surfaces, each of the inner side surfaces comprises a guide portion, each of the inner tapered surfaces comprises a first guide chute, a second guide chute and a positioning portion, each of the first guide chute is respectively connected between each of the guide portions and each of the second guide chute, and each of the positioning portions is located in each of the second guide chute;

[0006] a light guide bar, the light guide bar comprising an arc portion at the upper half and a tapered portion at the lower half, the light guide bar being disposed on the base; and

[0007] A snap fastener, the snap fastener comprising a connecting arm, two elastic arms and two limiting portions, each of the elastic arms extending outward from both sides of the connecting arm, the connecting arm and the inner sides of the two elastic arms form a receiving hole to accommodate the light guide strip, each of the limiting portions is located on the outer side of each of the elastic arms, and the limiting portion is guided to the positioning portion along the first guiding bevel groove and the second guiding bevel groove via the guiding portion.

[0008] In the above-mentioned light guide module, the first guiding oblique groove has a first angle with the guiding portion, the second guiding oblique groove has a second angle with the guiding portion, and the first angle is smaller than the second angle.

[0009] In the above-mentioned light guide module, each of the elastic arms also includes a tapered section and a guide section, each of the tapered sections is respectively connected to each of the guide sections, and there is a tapered angle between each of the tapered sections, and the tapered portion includes a tapered portion angle, and the tapered angle is less than or equal to the tapered portion angle.

[0010] In the above-mentioned light guide module, the inner diameter of the accommodating hole is equal to the outer diameter of the arc portion, and the outer diameter of the connecting arm is equal to the distance between the inner side surfaces.

[0011] In the above-mentioned light guide module, a guiding surface is provided between each of the tapered sections and each of the guiding sections.

[0012] In the above-mentioned light guide module, each of the guide segments has a guide end.

[0013] In the above-mentioned light guide module, there is a gap between the tapered portion and the inner tapered surface, and each of the tapered sections is located in the gap.

[0014] In the above-mentioned light guide module, the tapered portion includes a tapered portion angle, the inner tapered surface includes an inner tapered surface angle, and the tapered portion angle is greater than the inner tapered surface angle.

[0015] The above-mentioned light guide module, wherein the base includes an inner bottom surface, the inner bottom surface is connected between the inner tapered surfaces, the limiting portion, the second guiding inclined groove and the positioning portion are adjacent to the inner bottom surface, and the limiting portion corresponds to the end of the tapered portion of the light guide strip.

[0016] In the above-mentioned light guide module, the limiting portion, the second guiding inclined groove and the positioning portion are adjacent to the two inner side surfaces and between the two inner tapered surfaces.

[0017] In summary, according to some embodiments, the limiting portion of the clip is guided through the guide portion of the base, the first guiding bevel groove, and the second guiding bevel groove to the positioning portion for positioning or reverse removal, so as to facilitate the loading and unloading of the light guide bar in the base. In some embodiments, the elastic arm of the clip stores deformation energy through the squeezing effect of the inner tapered surface of the light guide bar and the base on the inner and outer sides of the elastic arm, thereby constraining the limiting portion of the clip to the positioning portion of the base. In some embodiments, if the light guide bar is to be removed from the base, it is only necessary to press the limiting portions of the clip and bring the limiting portion of the clip away from the positioning portion of the base, so that the clip can be guided by the second guiding bevel groove and the first guiding bevel groove in sequence to detach from the light guide bar, so that the light guide bar can be quickly removed from the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional schematic diagram of a light guide module according to some embodiments is drawn;

[0019] Figure 2 A three-dimensional exploded schematic diagram of a light guide module according to some embodiments is drawn;

[0020] Figure 3 A top view schematic diagram of a light guide module according to some embodiments is drawn;

[0021] Figure 4 is a side view schematic diagram of a light guide module according to some embodiments;

[0022] Figure 5 is a front view schematic diagram of a base according to some embodiments, in which the light guide strip and the buckle are not installed;

[0023] Figure 6 is a cross-sectional schematic diagram of a base according to some embodiments, in a state where a light guide bar and a fastener are not installed;

[0024] Figure 7 is another cross-sectional view of the base according to some embodiments, in which the light guide bar and the buckle are not installed;

[0025] Figure 8 A three-dimensional schematic diagram of a buckle according to some embodiments is drawn;

[0026] Fig. 9 is a cross-sectional schematic diagram of a light guide module according to some embodiments;

[0027] Fig.10 is another cross-sectional schematic diagram of a light guide module according to some embodiments;

[0028] Fig.11 A cross-sectional schematic diagram of an assembly process of a light guide module according to some embodiments is drawn;

[0029] Fig.12 is another cross-sectional schematic diagram of the assembly process of the light guide module according to some embodiments;

[0030] Fig.13 A cross-sectional schematic diagram of an assembly process of a light guide module according to some embodiments is drawn;

[0031] Fig.14 is another cross-sectional schematic diagram of the assembly process of the light guide module according to some embodiments;

[0032] Fig.15 is another cross-sectional schematic diagram of the assembly process of the light guide module according to some embodiments;

[0033] Fig.16 is another cross-sectional schematic diagram of the assembly process of the light guide module according to some embodiments;

[0034] Fig.17 is a cross-sectional schematic diagram of a light guide module according to some embodiments;

[0035] Fig.18 is another cross-sectional schematic diagram of a light guide module according to some embodiments;

[0036] Fig.19 FIG. 4 is another cross-sectional schematic diagram of a light guide module according to some embodiments.

[0037]

Explanation of symbols

[0038] 1: Light guide module

[0039] 10,10': Base

[0040] 11: First Structure

[0041] 12: Second structure

[0042] 13: Bending structure

[0043] 14,14”: First end face

[0044] 15: Second end face

[0045] 16,16”: The third end face

[0046] 17:Inside

[0047] 17A, 17A', 17A”: inner side

[0048] 17B, ​​17B', 17B”: inner tapered surface

[0049] 17C: Inner bottom

[0050] 17D: Guide

[0051] 17E, 17E”: First guide chute

[0052] 17F, 17F', 17F": Second guide chute

[0053] 17G, 17G', 17G”: Positioning part

[0054] 18: Outside

[0055] 20: Light guide strip

[0056] 21: Arc

[0057] 22: Tapered part

[0058] 30: Clip

[0059] 31: Connecting arm

[0060] 32: Elastic arm

[0061] 33: Accommodation hole

[0062] 34,34',34”: Limiting part

[0063] 35: Gradually shrinking section

[0064] 36: Guide

[0065] 37: Guide surface

[0066] 38: Guide end

[0067] L1,L1”: First direction

[0068] L2: Second direction

[0069] L3, L3”: Guidance direction

[0070] L4: First guidance direction

[0071] L5, L5”: Second guidance direction

[0072] D1:Inner diameter

[0073] D2, D3: outer diameter

[0074] D4: Spacing

[0075] α: first angle

[0076] β: Second angle

[0077] ψ: Inner tapered surface angle

[0078] φ: angle of tapered part

[0079] θ: tapered angle

[0080] P: ribs DETAILED DESCRIPTION

[0081] Various embodiments are provided below for detailed description. However, the embodiments are only used as examples and do not limit the scope of the invention. In addition, some components are omitted in the drawings in the embodiments to clearly show the technical features of the invention. The same reference numerals will be used to represent the same or similar components in all drawings.

[0082] Figure 1 is a three-dimensional schematic diagram of a light guide module according to some embodiments, Figure 2 is a three-dimensional exploded schematic diagram of a light guide module according to some embodiments, Figure 3 FIG. 1 is a top view schematic diagram of a light guide module according to some embodiments. Figures 1 to 3 As shown, in some embodiments, the light guide module 1 includes a base 10, a light guide bar 20 and a buckle 30, and the light guide bar 20 is assembled to the base 10 through the buckle 30. In some embodiments, the light guide module 1 can be applied to a car lamp, but is not limited thereto, and can also be applied to a motorcycle, a bicycle or other vehicle body or lamp, and the light guide module 1 can be set on various products through the base 10.

[0083] like Figures 1 to 3 As shown, the base 10 can be made of metal material by stamping, bending or casting, and the material of the base 10 is silver, aluminum, stainless steel or iron. For example, the base 10 can be a light guide cover, and the base 10 can reflect the received light to the outside.

[0084] like Figures 1 to 3 As shown, in some embodiments, the base 10 includes a first structure 11, a second structure 12 and a bending structure 13, the bending structure 13 is connected between the first structure 11 and the second structure 12, the first structure 11 has a first direction L1 and a first end surface 14, the second structure 12 has a second direction L2 and a second end surface 15, the first end surface 14 extends along the first direction L1 to form the first structure 11, the second end surface 15 extends along the second direction L2 to form the second structure 12, and the angle between the first direction L1 (here the first direction L1 is opposite to the X-axis direction) and the second direction L2 (here the second direction L2 is opposite to the Y-axis direction) is 90°. In some embodiments, the angle between the first direction L1 and the second direction L2 can be any angle, for example, the angle between the first direction L1 and the second direction L2 can also be 120°, 145° or 150° depending on the use requirements, and the present invention is not limited thereto.

[0085] As above, Figures 1 to 3 As shown, in some embodiments, the base 10 also includes a third end surface 16 and corresponding inner and outer surfaces 17 and 18, the third end surface 16 is connected between the first end surface 14 and the second end surface 15, and the inner and outer surfaces 17 and 18 are respectively connected between the first end surface 14 and the second end surface 15.

[0086] Figure 4 is a side view schematic diagram of a light guide module according to some embodiments, Figure 5 FIG. 1 is a front view of the base according to some embodiments, in which the light guide strip and the buckle are not installed. Figure 2 and Figure 5 As shown, in some embodiments, the inner surface 17 of the base 10 includes two opposite inner side surfaces 17A, two opposite inner tapered surfaces 17B, and an inner bottom surface 17C, each inner side surface 17A is parallel to each other, each inner side surface 17A is connected to each inner tapered surface 17B, the inner bottom surface 17C is connected between each inner tapered surface 17B, each inner tapered surface 17B linearly asymptotically approaches each other from each inner side surface 17A to the inner bottom surface 17C, and each inner tapered surface 17B has an inner tapered surface angle ψ. In some embodiments, each inner tapered surface 17B may also be nonlinearly asymptotically approaching each other, for example, the trend of asymptotically approaching each other is a curve trend or an exponential trend.

[0087] Figure 6The figure is a cross-sectional view of the base according to some embodiments, in which the light guide strip and the buckle are not installed. Figure 7 It is another cross-sectional schematic diagram of the base according to some embodiments, in a state where the light guide strip and the buckle are not installed. Figure 6 Is Figure 3 AA cross-section, Figure 7 Is Figure 3 BB cross-section. Figures 2 to 3 and Figure 6 to Figure 7 As shown, in some embodiments, the two inner side surfaces 17A respectively include two guiding portions 17D. Since the two guiding portions 17D are symmetrically arranged with respect to each other, only one of the guiding portions 17D is described below.

[0088] As above, Figure 4 and Figure 6 to Figure 7 As shown, in some embodiments, the guide portion 17D has a guide direction L3, which extends from the third end surface 16 to the inner bottom surface 17C. In this guide direction L3, which is opposite to the Z-axis direction, the cross section of the guide portion 17D is rectangular, and the cross section of the guide portion 17D extends from the third end surface 16 along the guide direction L3 and is recessed in the inner side surface 17A, so that the guide portion 17D is in the shape of a rectangular long straight groove. A rib P is provided on the outer surface 18 corresponding to the guide portion 17D, and the rib P protrudes from the inner surface 17 to the outer surface 18 to reinforce the portion of the base 10 hollowed out by the guide portion 17D, thereby ensuring the rigidity of the base 10. In some embodiments, the guide portion 17D can also be in the shape of an arc-shaped long straight groove, or the guide portion 17D can also be in the shape of a perforation, which is not intended to limit the present invention.

[0089] like Figure 6 to Figure 7 As shown, the two inner tapered surfaces 17B respectively include two first guide bevel grooves 17E, two second guide bevel grooves 17F and two positioning portions 17G. Since the two first guide bevel grooves 17E, two second guide bevel grooves 17F and two positioning portions 17G of the two inner tapered surfaces 17B are symmetrically arranged with each other, the figure only shows one side, and only the first guide bevel groove 17E, the second guide bevel groove 17F and the positioning portion 17G of one of the inner tapered surfaces 17B are described (such as Figure 7 shown).

[0090] Please refer to the above Figure 4 and Figure 6 to Figure 7In some embodiments, the first guiding slant groove 17E has a first guiding direction L4, and the first guiding direction L4 is obliquely extended from the third end surface 16 along the first direction L1 and the guiding direction L3 to the inner bottom surface 17C. One end of the first guiding slant groove 17E is connected to the guiding portion 17D. The cross section of the first guiding slant groove 17E is rectangular. The cross section of the first guiding slant groove 17E extends from the end of the guiding portion 17D along the first guiding direction L4 and penetrates the inner tapered surface 17B and the outer surface 18 corresponding to the inner tapered surface 17B, but does not penetrate the rib P. In some embodiments, the first guiding slant groove 17E may also be only recessed in the inner tapered surface 17B without penetrating the outer surface 18 corresponding to the inner tapered surface 17B.

[0091] like Figure 4 and Figure 6 to Figure 7 As shown, in some embodiments, the other end of the first guiding chute 17E is connected to the second guiding chute 17F, the second guiding chute 17F is adjacent to the inner bottom surface 17C, the second guiding chute 17F has a second guiding direction L5, the second guiding direction L5 is oblique from the first end surface 14 along the first direction L1 and the guiding direction L3 to the inner bottom surface 17C, the cross section of the second guiding chute 17F is rectangular, the cross section of the second guiding chute 17F extends from the end of the first guiding chute 17E along the second guiding direction L5 and penetrates the inner tapered surface 17B and the outer surface 18 corresponding to the inner tapered surface 17B. In some embodiments, the second guiding chute 17F may also be only recessed in the inner tapered surface 17B without being penetrated in the outer surface 18 corresponding to the inner tapered surface 17B.

[0092] like Figure 4 and Figure 7 As shown, in some embodiments, the positioning portion 17G is a circular arc through hole, located at the end of the second guiding inclined groove 17F and adjacent to the inner bottom surface 17C. In some embodiments, the positioning portion 17G can also be a square through hole.

[0093] like Figures 1 to 3 As shown, the light guide bar 20 can be an optical fiber cable, but the present invention is not limited to this. In some embodiments, the light guide bar 20 includes an arc portion 21 in the upper half and a tapered portion 22 in the lower half. The light guide bar 20 is disposed on the inner surface 17 of the base 10. A light-emitting element can be disposed near the light guide bar 20. The light-emitting element can be, for example, a light-emitting diode (LED), a xenon lamp HID (High Intensity Discharge, HID) or a halogen bulb. The light guide bar 20 can guide the light emitted by the light-emitting element to the base 10, and the base 10 then reflects the light to the outside to improve the overall brightness.

[0094] Figure 8 FIG. 1 is a three-dimensional schematic diagram of a buckle according to some embodiments. Figure 8As shown, in some embodiments, the clip 30 can be made of polycarbonate (PC), which has the property of light transmission, so that the clip 30 can transmit the light guided by the light guide bar 20 to the outside. The clip 30 includes a connecting arm 31, two elastic arms 32 and two limiting parts 34. The connecting arm 31 is in the shape of an arc plate, and each elastic arm 32 is in the shape of a long straight plate and is symmetrically arranged on two sides of the connecting arm 31. The elastic arm 32 also includes a tapered section 35 and a guide section 36. One side of the tapered section 35 of each elastic arm 32 extends outward from both sides of the connecting arm 31 and gradually approaches each other, gradually approaching to the other side of each tapered section 35 to reach the closest position to each other, and the other side of the tapered section 35 is connected to the guide section 36. Each guide section 36 extends from the other side of each tapered section 35 and is parallel to each other. The inner side of the connecting arm 31 and the two elastic arms 32 form a receiving hole 33.

[0095] Fig. 9 FIG. 1 is a cross-sectional schematic diagram of a light guide module according to some embodiments. Fig. 9 Is Figure 3 DD section view. Figure 8 and Fig. 9 As shown, in some embodiments, the receiving hole 33 is in a circular hole shape to match the shape of the light guide bar 20 . The receiving hole 33 is surrounded by a connecting arm 31 and two elastic arms 32 and is located in the buckle 30 to receive the light guide bar 20 .

[0096] Fig.10 FIG. 4 is another cross-sectional schematic diagram of a light guide module according to some embodiments. Fig.10 Is Figure 3 CC cross-section. Figures 8 to 10 As shown, each limiting portion 34 is located on the outside of the guide section 36 of each elastic arm 32, and the limiting portion 34 cooperates with the positioning portion 17G. For example, in some embodiments, the positioning portion 17G is an arc perforation and the limiting portion 34 is a long round rod.

[0097] Fig.11 is a cross-sectional schematic diagram of the assembly process of the light guide module according to some embodiments, Fig.12 FIG. 1 is another cross-sectional view of the assembly process of the light guide module according to some embodiments. Fig.13 is a cross-sectional schematic diagram of the assembly process of the light guide module according to some embodiments, Fig.14 FIG. 1 is another cross-sectional view of the assembly process of the light guide module according to some embodiments. Fig.11 and Fig.13 Is Figure 3 AA cross-section, Fig.12 and Fig.14 is Figure 3 CC cutaway, Fig.11 and Fig.12 In the same assembly state, Fig.13 and Fig.14 are in the same assembled state and, Fig.11 and Fig.12 The assembly state is different from Fig.13 and Fig.14 The following describes how the light guide bar 20 is assembled or disassembled on the base 10 through the fastener 30 .

[0098] like Figure 7 and Figure 11 to Figure 12 As shown, in the assembly process of some embodiments, first, the light guide bar 20 is placed on the inner surface 17 of the base 10, then the limiting parts 34 of the buckle 30 are aligned with the guide parts 17D of the inner side surfaces 17A, and force is applied to the buckle 30 along the guiding direction L3. Figure 8 and Fig.11 As shown, the latch 30 has not yet contacted the light guide bar 20, and there is a tapered angle θ between the tapered sections 35 of the latch 30. In this case, the tapered angle θ is equal to the tapered portion angle φ. For example, the tapered angle θ and the tapered portion angle φ can both be 60° or 70°.

[0099] As above, Figure 7 , Figures 11 to 14 As shown, after the buckle 30 is subjected to force, the limiting portion 34 of the buckle 30 is guided by the guide portion 17D to move along the guide direction L3 toward the first guide inclined groove 17E of the inwardly tapered surface 17B. During the process of moving and applying force, the guide section 36 of the buckle 30 will first contact the arc portion 21 of the light guide bar 20, and then the elastic arm 32 of the buckle 30 will be guided by the arc portion 21 and gradually expand.

[0100] As above, Figure 13 to Figure 14 As shown, when the limiting portion 34 moves to the junction of the guiding portion 17D and the first guiding inclined groove 17E, the elastic arm 32 will be stretched to the maximum to reduce the tapering angle, and the distance between each tapering section 35 will approach the inner diameter D1 of the accommodating hole 33.

[0101] Fig.15 FIG. 1 is another cross-sectional view of the assembly process of the light guide module according to some embodiments. Fig.16 FIG. 1 is another cross-sectional view of the assembly process of the light guide module according to some embodiments. Fig.15 and Fig.16 Is Figure 3 CC cutaway, Fig.15 The assembly state is different from Fig.16 . Continuing from above, Figure 7 ,and Fig.15As shown, after the latch 30 enters the first guiding groove 17E, since the first guiding direction L4 of the first guiding groove 17E is inclined toward the inner bottom surface 17C, force is continuously applied to the latch 30 along the guiding direction L3, and the limiting portion 34 of the latch 30 will be guided by the first guiding groove 17E and move along the first guiding direction L4 to the second guiding groove 17F. During the movement of the limiting portion 34 in the first guiding inclined groove 17E, since the latch 30 will gradually cover the light guide bar 20, the distances between the elastic arms 32 will gradually approach each other. When the light guide bar 20 is completely accommodated in the accommodating hole 33, the inner sides of the elastic arms 32 will be squeezed by the light guide bar 20 and expand outward, so that the outer sides of the elastic arms 32 press against the inner tapered surface 17B, thereby generating deformation energy. In addition, due to the inward contraction of the inner tapered surface 17B, the elastic arms 32 press against the inner tapered surface 17B more violently during the movement, thereby being able to continuously accumulate deformation energy.

[0102] As above, then Figure 7 and Fig.16 As shown, after the latch 30 enters the second guiding inclined groove 17F, since the second guiding direction L5 of the second guiding inclined groove 17F is also inclined toward the inner bottom surface 17C, the latch 30 is continuously applied along the guiding direction L3, and the limiting portion 34 of the latch 30 is guided by the second guiding inclined groove 17F to move to the end of the second guiding inclined groove 17F along the second guiding direction L5. During the movement of the limiting portion 34 in the second guiding inclined groove 17F, since the second guiding inclined groove 17F is also located on the inner tapered surface 17B, the elastic arm 32 also continuously accumulates deformation energy.

[0103] As above, then Figure 7 , Fig. 9 and Fig.10 As shown, since in the above process, the inner and outer sides of the elastic arm 32 are squeezed by the light guide bar 20 and the inner tapered surface 17B respectively, sufficient deformation energy is stored. When the force applied to the latch 30 is released, the deformation energy is also released. Therefore, the latch 30 will move in the opposite direction to the guiding direction L3 until the positioning portion 17G, so that the limiting portion 34 is engaged with the positioning portion 17G, thereby assembling the light guide bar 20 in the base 10.

[0104] In addition, if Fig. 9 As shown, when the light guide bar 20 is completely accommodated in the accommodation hole 33, the inner side of the elastic arm 32 is still squeezed by the light guide bar 20, so that the tapered angle θ is reduced. Therefore, in this case, the tapered angle θ is smaller than the tapered portion angle φ. For example, the tapered angle θ and the tapered portion angle φ can be 55° and 60° respectively, the tapered angle θ and the tapered portion angle φ can be 60° and 70° respectively, or the tapered angle θ and the tapered portion angle φ can be 65° and 70° respectively, thereby ensuring the stability of the clip 30 clamping the light guide bar 20.

[0105] like Figures 9 to 16 As shown, during the disassembly process of some embodiments, first, each limiting portion 34 of the latch 30 is pressed and the limiting portion 34 of the latch 30 is moved away from the positioning portion 17G of the base 10, and then the pressing force applied to the limiting portion 34 is removed, and each elastic arm 32 releases the deformation energy and returns to the guide portion 17D in sequence through the second guide bevel 17F and the first guide bevel 17E, thereby removing the light guide bar 20 from the base 10.

[0106] like Figure 7 As shown, there is a first angle α between the first guiding direction L4 of the first guiding slot 17E and the guiding direction L3 of the guiding portion 17D, and there is a second angle β between the second guiding direction L5 of the second guiding slot 17F and the guiding direction L3 of the guiding portion 17D. In some embodiments, since the first angle α is smaller than the second angle β, for example, the first angle α and the second angle β may be 45° and 75° respectively, the first angle α and the second angle β may be 30° and 75° respectively, or the first angle α and the second angle β may be 30° and 60° respectively. Therefore, the limiting portion 34 has a larger component moving along the guiding direction L3 in the first guiding slot 17E relative to the second guiding slot 17F, so that the user has a better efficiency in applying force during the assembly process. Similarly, during the disassembly process, the effect of the buckle 30 being guided back to the guiding portion 17D by the first guiding slot 17E is also better, thereby improving the functions of quick assembly and quick disassembly. On the contrary, the limiting portion 34 has less movement along the guiding direction L3 in the second guiding inclined groove 17F than in the first guiding inclined groove 17E. Therefore, in the process of the limiting portion 34 being engaged with the positioning portion 17G, the elastic arm 32 can release the deformation energy gently and make the limiting portion 34 engaged with the positioning portion 17G gently, thereby improving the probability of the fastener 30 being successfully assembled on the base 10, and at the same time, it can also prevent the elastic arm 32 from releasing the deformation energy too violently, so that the limiting portion 34 and the positioning portion 17G collide violently, thereby causing damage to the fastener 30 or the base 10. In some embodiments, the first angle α can also be greater than the second angle β. For example, the first angle α and the second angle β can be 75° and 45° respectively, the first angle α and the second angle β can be 75° and 30° respectively, or the first angle α and the second angle β can be 60° and 30° respectively. In some embodiments, the first angle α may also be equal to the second angle β. For example, the first angle α and the second angle β are both 30°, 45°, 60° or 75°. In some embodiments, the first angle α and the second angle β may be any angle, depending on the use requirements, and the present invention is not limited thereto.

[0107] Please cooperate Figure 3 and Fig.11As shown, in some embodiments, the inner diameter D1 of the accommodating hole 33 is equal to the outer diameter D2 of the arc portion 21, and the outer diameter D3 of the connecting arm 31 is equal to the spacing D4 between the inner side surfaces 17A, thereby ensuring that the fastener 30 can smoothly clamp the light guide bar 20 and be accommodated in the inner surface 17 of the base 10, and ensuring that the elastic arm 32 can generate sufficient deformation energy, thereby fixing the fastener 30 to the base 10.

[0108] like Figure 8 , Fig.11 and Fig.13 As shown, in some embodiments, the end of the guide section 36 has a guide end 38, whereby, during the assembly process, the guide end 38 of the latch 30 will first contact the arc portion 21 of the light guide bar 20, and through the guidance of the guide end 38 and the arc portion 21, the elastic arm 32 is smoothly deformed, thereby allowing the light guide bar 20 to be smoothly accommodated in the accommodation hole 33.

[0109] like Figure 8 , Fig.11 and Fig.13 As shown, in some embodiments, a guide surface 37 is provided between each tapered section 35 and each guide section 36, whereby, during the assembly or disassembly process, the elastic arm 32 is smoothly deformed through the guidance of the guide surface 37 and the arc portion 21, thereby allowing the light guide bar 20 to be smoothly accommodated in the accommodation hole 33 or allowing the light guide bar 20 to smoothly leave the accommodation hole 33.

[0110] like Fig. 9 As shown, in some embodiments, the tapered portion 22 and the inner tapered surface 17B have a gap, and the tapered section 35 is located in the gap, so that the tapered section 35 has space to deform. In addition, through the gap between the tapered portion 22 and the inner tapered surface 17B, the base 10 can also have space to reflect the light guided by the light guide strip 20 to the outside, so as to achieve a good reflection effect.

[0111] like Fig. 9 As shown, in some embodiments, the tapered portion angle φ is greater than the inner tapered surface angle ψ. For example, the tapered portion angle φ and the inner tapered surface angle ψ may be 60° and 50° respectively, the tapered portion angle φ and the tapered portion angle φ may be 70° and 65° respectively, or the tapered portion angle φ and the tapered portion angle φ may be 70° and 60° respectively, so as to ensure that there is enough space between the tapered portion 22 and the inner tapered surface 17B to increase the path of light reflection, thereby achieving a good reflection effect, and at the same time, it can also avoid interference between the tapered portion 22, the inner tapered surface 17B and the elastic arm 32, thereby ensuring the operability of assembly.

[0112] like Figures 9 and 10As shown, in some embodiments, the limiting portion 34, the second guiding inclined groove 17F and the positioning portion 17G are adjacent to the inner bottom surface 17C, and the limiting portion 34 is correspondingly positioned at the end of the tapered portion 22 of the light guide bar 20, thereby, through the second guiding inclined groove 17F and the positioning portion 17G adjacent to the inner bottom surface 17C, only a small part of the light guided by the light guide bar 20 passes through the second guiding inclined groove 17F and the positioning portion 17G and dissipates to the outside, thereby ensuring the total amount of light guided by the light guide bar 20 that can be reflected by the base 10. In addition, through the positioning of the limiting portion 34 correspondingly at the end of the tapered portion 22 of the light guide bar 20, the deformation energy stored in the elastic arm 32 can be increased, thereby ensuring the clamping force of the buckle 30 clamped on the base 10.

[0113] Fig.17 is a cross-sectional schematic diagram of a light guide module according to some embodiments, Fig.18 FIG. 2 is another cross-sectional view of a light guide module according to some embodiments. Figure 17 to Figure 18 As shown, in some embodiments, the limiting portion 34', the second guiding inclined groove 17F' and the positioning portion 17G' are adjacent to the two inner side surfaces 17A' and the two inner tapered surfaces 17B'. Therefore, since the overall guiding trajectory is shortened, the assembly speed of assembling the light guide bar 20 to the base 10' can be increased, and the disassembly speed of disassembling the light guide bar 20 from the base 10' can also be increased.

[0114] Fig.19 FIG. 2 is another cross-sectional view of a light guide module according to some embodiments. Fig.19 As shown, in some embodiments, the inner tapered surface 17B" is connected to the inner side surface 17A", and the second guiding direction L5" of the second guiding bevel 17F" of the inner tapered surface 17B" is inclined from the first end surface 14" along the first direction L1" (the first direction L1" is opposite to the X-axis direction here) and the opposite guiding direction L3" (the guiding direction L3" is opposite to the Z-axis direction here) to the third end surface 16", so that the first guiding bevel 17E" and the second guiding bevel 17F" form a V-shape. Therefore, when the limiting portion 34" moves from the first guiding bevel 17E" to the turning point between the first guiding bevel 17E and the second guiding bevel 17F", it is no longer necessary to apply force to the latch 30, and the elastic arm 32 of the latch 30 will release the deformation energy, so that the latch 30 moves toward the end of the second guiding bevel 17F", and then the limiting portion 34" of the latch 30 is automatically engaged with the positioning portion 17G".

[0115] In summary, according to some embodiments, the limiting portion of the clip is guided through the guide portion of the base, the first guiding bevel groove, and the second guiding bevel groove to the positioning portion for positioning or reverse removal, so as to facilitate the loading and unloading of the light guide bar in the base. In some embodiments, the elastic arm of the clip stores deformation energy through the squeezing effect of the inner tapered surface of the light guide bar and the base on the inner and outer sides of the elastic arm, thereby constraining the limiting portion of the clip to the positioning portion of the base. In some embodiments, if the light guide bar is to be removed from the base, it is only necessary to press the limiting portions of the clip and bring the limiting portion of the clip away from the positioning portion of the base, so that the clip can be guided by the second guiding bevel groove and the first guiding bevel groove in sequence to detach from the light guide bar, so that the light guide bar can be quickly removed from the base. Although the technical contents of the present invention have been disclosed as above in the preferred embodiments, they are not used to limit the present invention. Any slight changes and modifications made by anyone familiar with this technology without departing from the spirit of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be based on the scope defined by the attached claims.

Claims

1. A light guide module, characterized in that: include: A base, comprising two inner side surfaces and two inner tapered surfaces, each of the inner side surfaces is respectively connected to each of the inner tapered surfaces, each of the inner side surfaces comprises a guide portion, each of the inner tapered surfaces comprises a first guide chute, a second guide chute and a positioning portion, each of the first guide chute is respectively connected between each of the guide portions and each of the second guide chute, and each of the positioning portions is located in each of the second guide chute; a light guide bar, the light guide bar comprising an arc portion at an upper portion and a tapered portion at a lower portion, the light guide bar being disposed on the base; and A snap fastener, the snap fastener comprising a connecting arm, two elastic arms and two limiting portions, each of the elastic arms extending outward from both sides of the connecting arm, the connecting arm and the inner sides of the two elastic arms form a receiving hole to accommodate the light guide strip, each of the limiting portions is located on the outer side of each of the elastic arms, and the limiting portion is guided to the positioning portion along the first guiding bevel groove and the second guiding bevel groove via the guiding portion.

2. The light guide module according to claim 1, characterized in that: The first guiding inclined groove has a first angle with the guiding portion, the second guiding inclined groove has a second angle with the guiding portion, and the first angle is smaller than the second angle.

3. The light guide module according to claim 1, characterized in that: Each of the elastic arms also includes a tapered section and a guide section, each of the tapered sections is respectively connected to each of the guide sections, and there is a tapered angle between each of the tapered sections. The tapered portion includes a tapered portion angle, and the tapered angle is less than or equal to the tapered portion angle.

4. The light guide module according to claim 3, characterized in that: The inner diameter of the accommodating hole is equal to the outer diameter of the arc portion, and the outer diameter of the connecting arm is equal to the distance between the inner side surfaces.

5. The light guide module according to claim 3, characterized in that: A guiding surface is provided between each of the tapered sections and each of the guiding sections.

6. The light guide module according to claim 3, characterized in that: Each of the guide sections has a guide end.

7. The light guide module according to claim 1, characterized in that: A gap is formed between the tapered portion and the inner tapered surface, and a tapered section is located in the gap.

8. The light guide module according to claim 7, characterized in that: The tapered portion includes a tapered portion angle, the inner tapered surface includes an inner tapered surface angle, and the tapered portion angle is greater than the inner tapered surface angle.

9. The light guide module according to claim 1, characterized in that: The base includes an inner bottom surface, which is connected between the inner tapered surfaces. The limiting portion, the second guiding inclined groove and the positioning portion are adjacent to the inner bottom surface. The limiting portion corresponds to the end of the tapered portion of the light guide bar.

10. The light guide module according to claim 1, characterized in that: The limiting portion, the second guiding inclined groove and the positioning portion are adjacent to between the two inner side surfaces and the two inner tapered surfaces.

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