Light guide key structure and FTTR equipment

Abstract

The utility model provides a light guide button structure and FTTR equipment, the light guide button structure can also be applied to FTTR-B and broadband fusion terminal products, and the inner top wall of a housing is provided with a plurality of hot melting columns; the light guide part and the key are sequentially arranged on the multiple hot melting columns in a sleeving mode, so that each hot melting column sequentially penetrates through the light guide part and the key, and the light guide part and the key are fixed to the shell through hot melting of the multiple hot melting columns. A supporting frame located on the periphery of the hot melting column is further arranged on the inner top wall of the shell, and the lamplight assembly is installed on the supporting frame and located on the side, away from the light guide piece, of the key. The light guide part and the key are installed through the same hot melting column and integrated in the final hot melting fixing process, a firm integral structure is formed, relative movement between the light guide part and the key is eliminated, the assembling process of the key and the light guide part is simplified, the assembling efficiency is improved, the alignment precision between the light guide part and the key is improved, and the accuracy and attractiveness of the lighting effect are ensured. And the number of unnecessary parts is reduced, so that the overall cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of FTTR technology, and in particular to a light guide button structure and FTTR device. Background Technology

[0002] In the field of electronic products, such as set-top boxes and routers, buttons are typically provided for user interaction, and light guides are used to direct the light from internal LED indicator lights to the surface of the casing, creating a striking lighting effect. As two independent functional components, the way buttons and light guides are fixed and assembled directly affects the product's production efficiency, structural stability, and end-user experience.

[0003] Traditional designs typically treat them as two separate parts for separate assembly and fixing, which makes the assembly process of light guides and buttons cumbersome, increases costs, and poses risks of misalignment and poor stability. Utility Model Content

[0004] This invention provides a light guide button structure and an FTTR device to solve the problems of cumbersome assembly process, inaccurate alignment, and poor stability of the existing light guide button structure.

[0005] A light guide button structure for use in FTTR devices includes a light guide and a button.

[0006] The FTTR device includes a housing and a lighting assembly, and the inner top wall of the housing is provided with multiple hot melt columns;

[0007] The light guide and the button are sequentially sleeved on a plurality of hot melt pillars, such that each hot melt pillar sequentially passes through the light guide and the button, and the plurality of hot melt pillars are hot melted to fix the light guide and the button on the housing;

[0008] The inner top wall of the housing is also provided with a support frame located around the hot melt column, and the light assembly is installed on the support frame, located on the side of the button away from the light guide.

[0009] Preferably, the light guide includes a disk body, a protrusion extending axially from the center of a first disk surface of the disk body, a plurality of mounting portions extending radially from the periphery of the disk body, and a plurality of supporting portions extending axially from a second disk surface of the disk body.

[0010] The protrusion abuts against the inner top wall of the housing, and the middle of the protrusion is provided with a through hole for the button to extend out of the housing; each of the mounting parts is sleeved on a hot-melt column, and each of the supporting parts abuts against the lamp plate of the lighting assembly.

[0011] Preferably, the button includes a button body, a mounting frame, and multiple connecting arms; the button body is located in the middle of the mounting frame, and the button portion of the button body passes through the light guide and the housing;

[0012] One end of each connecting arm is connected to the button body, and the other end of each connecting arm is connected to the mounting frame; two adjacent connecting arms, the button body, and the mounting frame cooperate to form a clearance groove for avoiding the LED beads of the lighting assembly;

[0013] The mounting frame is fitted onto the plurality of hot-melt pillars, and a partition block is provided on the side of the mounting frame away from the light guide that abuts against the lamp plate of the light assembly.

[0014] Preferably, the housing is further provided with a plurality of positioning posts, and the light guide is provided with a plurality of positioning holes, with each positioning post inserted into a positioning hole;

[0015] And / or, the housing is further provided with a plurality of positioning protrusions, and the button is provided with a positioning slot, wherein the positioning protrusions engage with the positioning slot.

[0016] Preferably, the housing is further provided with a foolproof post, the light guide is provided with a foolproof hole, and the foolproof post passes through the foolproof hole;

[0017] And / or, the button is provided with a first anti-foolproof chamfer, and the housing is also provided with a second anti-foolproof chamfer, the second anti-foolproof chamfer matching the first anti-foolproof chamfer.

[0018] Preferably, a limiting structure is provided between the light guide and the button, the limiting structure restricting the relative rotation of the light guide and the button.

[0019] Preferably, the limiting structure includes a limiting groove and a limiting protrusion, one of the limiting groove and the limiting protrusion is disposed on the button, and the other is disposed on the light guide, and the limiting groove and the limiting protrusion are engaged.

[0020] Preferably, the light guide has a light-incident surface on the surface away from the housing, and a light-exit surface on the surface facing the housing;

[0021] The projection of the light-incident surface onto the axial direction of the light guide is located outside the projection of the light-exiting surface onto the axial direction of the light guide.

[0022] Preferably, the light-incident surface of the light guide is provided with a focusing groove, and the focusing groove is offset from the lamp beads of the light assembly in the axial direction of the light guide.

[0023] An FTTR device includes a housing, a cover, a lighting assembly, and the light guide button structure described above;

[0024] The housing and the cover are joined together to form an accommodating space for installing the lighting assembly and the light guide button structure.

[0025] The light guide button structure provided in this embodiment of the utility model first mounts the light guide component onto multiple hot-melt pillars to mount the light guide component onto the housing, then mounts the button onto multiple hot-melt pillars to mount the button into the support frame of the housing, and finally hot-melts and fixes the light guide component and the button together onto the housing. The light guide component and the button are installed through the same hot-melt pillars and are fused together in the final hot-melt fixation to form a solid integral structure, eliminating relative movement between the two, providing excellent vibration and impact resistance, noiseless operation, structural stability, high reliability, reducing structural and process complexity, simplifying the assembly process of the button and the light guide component, reducing production steps, improving assembly efficiency, improving the alignment accuracy between the light guide component and the button, ensuring the accuracy and aesthetics of the light effect, optimizing the structural design, reducing the number of unnecessary parts, thereby reducing the overall cost. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a first exploded view of the FTTR device in one embodiment of this utility model;

[0028] Figure 2 This is a second exploded view of the FTTR device in one embodiment of this utility model;

[0029] Figure 3 This is a first internal structure diagram of an FTTR device according to an embodiment of the present invention;

[0030] Figure 4 This is a second internal structure diagram of the FTTR device in one embodiment of the present invention;

[0031] Figure 5 This is a cross-sectional view of an FTTR device according to an embodiment of the present invention.

[0032] The components include: 1. Light guide; 101. Disc body; 102. Protrusion; 103. Mounting part; 104. Support part; 105. Through hole; 106. Positioning hole; 107. Anti-foolproof hole; 108. Light-incident surface; 109. Light-out surface; 110. Focusing groove; 2. Button; 21. Button body; 22. Mounting frame; 23. Connecting arm; 24. Clearance groove; 25. Spacer; 26. Positioning slot; 27. First anti-foolproof chamfer; 3. Housing; 4. Lighting assembly; 41. Light board; 42. Lamp bead; 5. Hot melt column; 6. Support frame; 7. Positioning column; 8. Positioning protrusion; 9. Anti-foolproof column; 10. Second anti-foolproof chamfer; 11. Limiting structure; 111. Limiting groove; 112. Limiting protrusion; 12. Cover. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0034] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] This utility model embodiment provides a light-guiding button structure, see reference. Figures 1-5This is applied to an FTTR device, including a light guide 1 and a button 2. The FTTR device includes a housing 3 and a light assembly 4. Multiple hot-melt pillars 5 are provided on the inner top wall of the housing 3. The light guide 1 and the button 2 are sequentially fitted onto the multiple hot-melt pillars 5, so that each hot-melt pillar 5 passes through the light guide 1 and the button 2 in sequence. The multiple hot-melt pillars 5 are hot-melted to fix the light guide 1 and the button 2 to the housing 3. A support frame 6 is also provided on the inner top wall of the housing 3, located around the hot-melt pillars 5. The light assembly 4 is installed on the support frame 6, located on the side of the button 2 away from the light guide 1.

[0037] As an example, the light guide button structure is applied to an FTTR device, specifically including a light guide 1 and a button 2. The FTTR device includes a housing 3 and a light assembly 4. Multiple hot-melt pillars 5 are provided on the inner top wall of the housing 3. During installation, the light guide 1 and the button 2 are sequentially fitted onto the multiple hot-melt pillars 5, so that each hot-melt pillar 5 passes through the light guide 1 and the button 2 in sequence. Then, the multiple hot-melt pillars 5 are hot-melted to fix the light guide 1 and the button 2 to the housing 3. A support frame 6 is also provided on the inner top wall of the housing 3, located around the hot-melt pillars 5. The light assembly 4 is installed on the support frame 6, located on the side of the button 2 away from the light guide 1. Specifically, the light assembly 4 has mounting holes, and the support frame 6 has screw holes. Screws are screwed into the screw holes through the mounting holes to fix the light assembly 4 to the support frame 6. With this configuration, the light emitted by the light assembly 4 passes through the button 2 and shines on the light guide 1. The light guide 1 guides the light from the light assembly 4 (e.g., an LED indicator) to the surface of the housing 3, forming a striking light effect. The number of hot melt pillars 5 can be set to four. The four hot melt pillars 5 are arranged at intervals along the circumference of the housing 3. The four hot melt pillars 5 can work together to securely fix the light guide 1 and the button 2 to the housing 3.

[0038] In this example, the light guide 1 is first mounted on multiple hot-melt pillars 5 to mount the light guide 1 onto the housing 3. Then, the button 2 is mounted on multiple hot-melt pillars 5 to install the button 2 into the support frame 6 of the housing 3. Finally, the light guide 1 and the button 2 are hot-melted and fixed together onto the housing 3. The light guide 1 and the button 2 are installed through the same hot-melt pillars 5 and are fused together in the final hot-melt fixation to form a robust integral structure. This eliminates relative movement between the two, provides excellent vibration and impact resistance, is noiseless, structurally stable, and highly reliable. It reduces the complexity of the structure and process, simplifies the assembly process of the button 2 and the light guide 1, reduces production steps, improves assembly efficiency, improves the alignment accuracy between the light guide 1 and the button 2, ensures the accuracy and aesthetics of the light effect, optimizes the structural design, reduces the number of unnecessary parts, and thus reduces the overall cost.

[0039] By combining the assembly steps of the two parts into one step, a "pre-assembly - overall fixing" process is achieved, which significantly reduces the number of operation steps on the production line, improves assembly efficiency, and facilitates automated production. The precise alignment of the light guide 1 and the button 2 can be completed in the pre-assembly stage, and the uniqueness and accuracy of the final position are ensured by the same hot melt pillar 5, ensuring the optimal path of light transmission and the quality of the light spot. The elimination of additional fasteners and auxiliary brackets reduces the number of molds and production management costs. At the same time, the simplified assembly process also reduces the defect rate, achieving a simultaneous reduction in material costs and production costs.

[0040] In one embodiment, reference is made to Figure 1 , Figure 2 and Figure 3 The light guide 1 includes a disc body 101, a protrusion 102 extending axially from the center of the first disc surface of the disc body 101, a plurality of mounting portions 103 extending radially from the periphery of the disc body 101, and a plurality of supporting portions 104 extending axially from the second disc surface of the disc body 101; the protrusion 102 abuts against the inner top wall of the housing 3, and the center of the protrusion 102 is provided with a through hole 105 for the button 2 to extend out of the housing 3; each mounting portion 103 is sleeved on a hot-melt column 5, and each supporting portion 104 abuts against the lamp plate 41 of the light assembly 4.

[0041] As an example, the light guide 1 is a circular light guide post, and its light guiding effect is a circular light ring. The light guide 1 includes a disk body 101, a protrusion 102, a mounting part 103, and a support part 104. Taking the disk body 101 as a reference, the protrusion 102 is a component extending axially from the center of the first disk surface of the disk body 101. A through hole 105 is provided in the center of the protrusion 102. The button body 21 of the button 2 extends out of the housing 3 from the through hole 105 so that the user can press the button 2. Multiple mounting parts 103 are components extending radially from the periphery of the disk body 101. Each mounting part 103 is fitted onto a hot-melt post 5. Specifically, each mounting part 103 is provided with a mounting hole, and the hot-melt post 5 is inserted into the mounting hole to realize the light guide 1 being fitted onto multiple hot-melt posts 5. Multiple support portions 104 are components that extend axially from the second disk surface of the disk body 101. Each support portion 104 abuts against the lamp plate 41 of the lighting assembly 4, and the protrusion 102 abuts against the inner top wall of the housing 3. With this arrangement, the protrusion 102 and the multiple support portions 104 can limit the light guide 1, prevent it from displacing in the axial direction, and improve its installation stability.

[0042] In one embodiment, reference is made to Figure 1 , Figure 2 and Figure 4The button 2 includes a button body 21, a mounting frame 22, and multiple connecting arms 23. The button body 21 is located in the middle of the mounting frame 22. The button part of the button body 21 passes through the light guide 1 and the housing 3. One end of each connecting arm 23 is connected to the button body 21, and the other end of each connecting arm 23 is connected to the mounting frame 22. Two adjacent connecting arms 23, the button body 21, and the mounting frame 22 cooperate to form a clearance groove 24 for avoiding the lamp beads 42 of the light assembly 4. The mounting frame 22 is fitted on multiple hot melt pillars 5. The side of the mounting frame 22 away from the light guide 1 is provided with a partition 25 that abuts against the lamp plate 41 of the light assembly 4.

[0043] As an example, button 2 includes a button body 21, a mounting frame 22, and multiple connecting arms 23. During installation, the button body 21 is located in the middle of the mounting frame 22, and the mounting frame 22 is fitted onto multiple hot-melt pillars 5. Specifically, the mounting frame 22 has mounting holes, and the hot-melt pillars 5 are inserted into the mounting holes to fit the button 2 onto the multiple hot-melt pillars 5. A partition 25 is provided on the side of the mounting frame 22 away from the light guide 1. The partition 25 abuts against the lamp plate 41 of the light assembly 4, which can limit the button 2 and prevent the button 2 from shifting in the axial direction during pressing, thus preventing the button 2 from lifting the light assembly 4. The button part of the button body 21 passes through the light guide 1 and the housing 3. Specifically, the button part of the button body 21 extends out of the housing 3 from the through hole 105 of the light guide 1 so that the user can press the button 2. One end of each connecting arm 23 is connected to the button body 21, and the other end of each connecting arm 23 is connected to the mounting frame 22. In this way, two adjacent connecting arms 23, the button body 21 and the mounting frame 22 cooperate to form a clearance groove 24. The clearance groove 24 is used to avoid the LED beads 42 of the light assembly 4, so as to prevent the button 2 from causing shadows in the light effect during the pressing process.

[0044] In one embodiment, reference is made to Figure 1 , Figure 2 , Figure 3 and Figure 4 The housing 3 is also provided with multiple positioning posts 7, and the light guide 1 is provided with multiple positioning holes 106, with each positioning post 7 inserted into a positioning hole 106; and / or, the housing 3 is also provided with multiple positioning protrusions 8, and the button 2 is provided with a positioning slot 26, with the positioning protrusions 8 engaging with the positioning slot 26.

[0045] As an example, the housing 3 is provided with multiple positioning posts 7, and the light guide 1 is provided with multiple positioning holes 106. For example, there are four positioning posts 7, which are arranged at intervals along the circumference of the housing 3. During installation, each positioning post 7 is inserted into a positioning hole 106. This provides positioning for the installation of the light guide 1, ensuring that the light guide 1 is strictly aligned during assembly and avoiding offset or tilting caused by manual operation. There is no need to repeatedly adjust the position of the light guide 1. The initial positioning can be completed simply by inserting the light guide 1 into the corresponding hole, which greatly shortens the assembly time. It can also effectively limit the radial displacement of the light guide 1 and prevent it from shifting and shaking, which would affect the light output effect.

[0046] And / or, the housing 3 is provided with multiple positioning protrusions 8, and the button 2 is provided with positioning slots 26. For example, the number of positioning protrusions 8 is four, and the four positioning protrusions 8 are arranged at intervals along the circumference of the housing 3. During installation, the multiple positioning protrusions 8 are engaged with the positioning slots 26. This can provide positioning for the installation of the button 2, ensure that the button 2 is secure and stable during assembly, and greatly shorten the assembly time. It can also effectively limit the radial displacement of the button 2 and prevent it from shaking.

[0047] In one embodiment, reference is made to Figure 1 , Figure 2 , Figure 3 and Figure 4 The housing 3 is also provided with a foolproof post 9, and the light guide 1 is provided with a foolproof hole 107, with the foolproof post 9 passing through the foolproof hole 107; and / or, the button 2 is provided with a first foolproof chamfer 27, and the housing 3 is also provided with a second foolproof chamfer 10, with the second foolproof chamfer 10 matching the first foolproof chamfer 27.

[0048] As an example, the housing 3 is also provided with a foolproof post 9 and the light guide 1 is provided with a foolproof hole 107. During installation, the foolproof post 9 is inserted into the foolproof hole 107. This setting can prevent foolproof installation of the light guide 1, prevent incorrect installation, and improve installation efficiency.

[0049] And / or, a first anti-foolproof chamfer 27 is provided on the button 2, and a second anti-foolproof chamfer 10 is provided on the housing 3. During installation, the second anti-foolproof chamfer 10 is matched with the first anti-foolproof chamfer 27. This setting can prevent the button 2 from being installed incorrectly and improve the installation efficiency.

[0050] In one embodiment, reference is made to Figure 4 A limiting structure 11 is provided between the light guide 1 and the button 2, which restricts the relative rotation of the light guide 1 and the button 2.

[0051] As an example, a limiting structure 11 is provided between the light guide 1 and the button 2. The limiting structure 11 can restrict the relative rotation of the light guide 1 and the button 2, so as to enhance the relative stability between the light guide 1 and the button 2 and avoid loosening and abnormal noise during use.

[0052] In one embodiment, reference is made to Figure 4 The limiting structure 11 includes a limiting groove 111 and a limiting protrusion 112. One of the limiting groove 111 and the limiting protrusion 112 is disposed on the button 2, and the other is disposed on the light guide 1. The limiting groove 111 and the limiting protrusion 112 are engaged.

[0053] As an example, the limiting structure 11 includes a limiting groove 111 and a limiting protrusion 112. During installation, one of the limiting groove 111 and the limiting protrusion 112 is set on the button 2, and the other is set on the light guide 1. The limiting groove 111 and the limiting protrusion 112 are engaged, which can limit the relative rotation between the light guide 1 and the button 2, thereby enhancing the relative stability between the light guide 1 and the button 2 and preventing loosening and abnormal noise during use.

[0054] In one embodiment, reference is made to Figure 5 The light guide 1 has an incident light surface 108 on a surface away from the housing 3 and an exit light surface 109 on a surface facing the housing 3. The projection of the incident light surface 108 in the axial direction of the light guide 1 is located outside the projection of the exit light surface 109 in the axial direction of the light guide 1.

[0055] As an example, in the design, the surface of the light guide 1 away from the housing 3 is provided with a light-incident surface 108, and the surface of the light guide 1 facing the housing 3 is provided with a light-exiting surface 109. The projection of the light-incident surface 108 in the axial direction of the light guide 1 is located outside the projection of the light-exiting surface 109 in the axial direction of the light guide 1. This setting optimizes the path of the light guide 1 when guiding the light emitted by the light assembly 4 to the surface of the housing 3, achieving the goal of the user only seeing the light but not the light assembly 4, avoiding the light shining directly into the eyes, and improving the user experience.

[0056] In one embodiment, reference is made to Figure 5 The light-incident surface 108 of the light guide 1 is provided with a focusing groove 110, and the focusing groove 110 and the lamp bead 42 of the light assembly 4 are offset in the axial direction of the light guide 1.

[0057] As an example, a focusing groove 110 (e.g., an arc-shaped groove) is provided on the light-incident surface 108 of the light guide 1. The focusing groove 110 and the lamp bead 42 of the light assembly 4 are offset in the axial direction of the light guide 1. This arrangement can better focus the light to improve the utilization rate and uniformity of the light.

[0058] This utility model embodiment provides an FTTR device, referencing... Figure 1 and Figure 2 It includes a housing 3, a cover 12, a light assembly 4, and a light guide button structure; the housing 3 and the cover 12 are mated to form an accommodating space for installing the light assembly 4 and the light guide button structure.

[0059] As an example, the FTTR device includes a housing 3, a cover 12, a lighting assembly 4, and a light-guiding button structure. During installation, the housing 3 and the cover 12 are mated together to form an accommodating space for installing the lighting assembly 4 and the light-guiding button structure. Specifically, the housing 3 has a first snap-fit ​​structure, and the cover 12 has a second snap-fit ​​structure. The first snap-fit ​​structure and the second snap-fit ​​structure engage to assemble the housing 3 and the cover 12 together. This snap-fit ​​method facilitates the assembly and disassembly of the housing 3 and the cover 12. Alternatively, the housing 3 and the cover 12 can also be assembled together using magnetic attraction, screwing, or adhesive methods.

[0060] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A light-guiding button structure, applied in an FTTR device, characterized in that, Including light guides and buttons; The FTTR device includes a housing and a lighting assembly, and the inner top wall of the housing is provided with multiple hot melt columns; The light guide and the button are sequentially sleeved on a plurality of hot melt pillars, such that each hot melt pillar sequentially passes through the light guide and the button, and the plurality of hot melt pillars are hot melted to fix the light guide and the button on the housing; The inner top wall of the housing is also provided with a support frame located around the hot melt column, and the light assembly is installed on the support frame, located on the side of the button away from the light guide.

2. The light guide button structure according to claim 1, characterized in that, The light guide includes a disk body, a protrusion extending axially from the center of a first disk surface of the disk body, a plurality of mounting portions extending radially from the periphery of the disk body, and a plurality of supporting portions extending axially from a second disk surface of the disk body. The protrusion abuts against the inner top wall of the housing, and the middle of the protrusion is provided with a through hole for the button to extend out of the housing; each of the mounting parts is sleeved on a hot-melt column, and each of the supporting parts abuts against the lamp plate of the lighting assembly.

3. The light guide button structure according to claim 1, characterized in that, The button includes a button body, a mounting frame, and multiple connecting arms; the button body is located in the middle of the mounting frame, and the button portion of the button body passes through the light guide and the housing; One end of each connecting arm is connected to the button body, and the other end of each connecting arm is connected to the mounting frame; two adjacent connecting arms, the button body, and the mounting frame cooperate to form a clearance groove for avoiding the LED beads of the lighting assembly; The mounting frame is fitted onto the plurality of hot-melt pillars, and a partition block is provided on the side of the mounting frame away from the light guide that abuts against the lamp plate of the light assembly.

4. The light guide button structure according to claim 1, characterized in that, The housing is also provided with a plurality of positioning posts, and the light guide is provided with a plurality of positioning holes, with each positioning post inserted into a positioning hole; And / or, the housing is further provided with a plurality of positioning protrusions, and the button is provided with a positioning slot, wherein the positioning protrusions engage with the positioning slot.

5. The light guide button structure according to claim 1, characterized in that, The housing is also provided with a foolproof post, and the light guide is provided with a foolproof hole, with the foolproof post passing through the foolproof hole; And / or, the button is provided with a first anti-foolproof chamfer, and the housing is also provided with a second anti-foolproof chamfer, the second anti-foolproof chamfer matching the first anti-foolproof chamfer.

6. The light guide button structure according to claim 1, characterized in that, A limiting structure is provided between the light guide and the button, and the limiting structure restricts the relative rotation of the light guide and the button.

7. The light guide button structure according to claim 6, characterized in that, The limiting structure includes a limiting groove and a limiting protrusion. One of the limiting groove and the limiting protrusion is disposed on the button, and the other is disposed on the light guide. The limiting groove and the limiting protrusion are engaged.

8. The light guide button structure according to claim 1, characterized in that, The light guide has a light-incident surface on its surface away from the housing, and a light-exit surface on its surface facing the housing; The projection of the light-incident surface onto the axial direction of the light guide is located outside the projection of the light-exiting surface onto the axial direction of the light guide.

9. The light guide button structure according to claim 8, characterized in that, The light guide has a focusing groove on its light-incident surface, and the focusing groove is offset from the lamp beads of the light assembly in the axial direction of the light guide.

10. An FTTR device, characterized in that, Includes a housing, a cover, a lighting assembly, and the light-guiding button structure as described in any one of claims 1-9; The housing and the cover are joined together to form an accommodating space for installing the lighting assembly and the light guide button structure.

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