Light guide module fixing structure

Abstract

The invention provides a light guide module fixing structure which comprises a shell, a mounting box and a fixing frame, the shell comprises a bottom plate and a side plate arranged around the bottom plate, and the inner wall of the side plate is provided with a first limiting strip, a second limiting strip and a limiting block located at one end of the first limiting strip and one end of the second limiting strip, a mounting groove is formed between the first limiting strip and the second limiting strip; the mounting box is arranged in the shell and used for mounting the light guide module, the mounting box is partially contained in the mounting groove, one side of the mounting box abuts against the first limiting strip, and one end of the mounting box abuts against the limiting block; the fixing frame is used for installing a circuit board and contained in the shell, a gap used for containing one side edge of the circuit board is formed between the second limiting strip and the installation box, the circuit board abuts against the side, away from the first limiting strip, of the installation box, and an abutting plate is arranged on one side of the fixing frame and used for abutting against the other side of the installation box. Therefore, one side, far away from the pressing plate, of the mounting box is pressed against the side plate of the shell.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and in particular to a light guide module fixing structure. Background Art

[0002] Most barrel-shaped electronic products are equipped with light guide modules, which are generally installed in the housing of the electronic product by hot-melting. This hot-melting installation method not only increases the cost of the entire electronic product, but also increases the complexity of the installation process of the light guide module.

[0003] How to solve the above problems and provide a light guide module fixing structure that can simplify the installation process and has low cost is what those skilled in the art need to consider. Summary of the invention

[0004] The embodiment of the present application provides a light guide module fixing structure, including:

[0005] The housing comprises a bottom plate and a side plate arranged around the bottom plate, wherein the inner wall of the side plate is provided with a first limiting strip, a second limiting strip and a limiting block located at one end of the first limiting strip and the second limiting strip, and a mounting groove is formed between the first limiting strip and the second limiting strip;

[0006] An installation box is arranged in the housing and is used to install the light guide module. The installation box is partially received in the installation slot, and one side of the installation box abuts against the first limit strip and one end abuts against the limit block;

[0007] A fixing frame is used to install a circuit board and is accommodated in the shell. A gap is formed between the second limiting strip and the installation box to accommodate one side of the circuit board, and the circuit board presses against the side of the installation box away from the first limiting strip. A pressing plate is provided on one side of the fixing frame, and the pressing plate is used to press against the other side of the installation box, so that the side of the installation box away from the pressing plate presses against the side plate of the shell.

[0008] Furthermore, a first rib and a second rib are spaced apart on one side of the mounting box close to the pressure plate, and an inclined first guide surface and a second guide surface are respectively provided on the first rib and the second rib facing the pressure plate, and the pressure plate abuts against the first guide surface and the second guide surface and can slide relative to the first guide surface and the second guide surface.

[0009] Further, the first guide surface and the second guide surface are both inclined from an end away from the base plate toward an end close to the base plate in a direction away from the installation box, the second guide surface is located at an end of the first guide surface close to the base plate, and a distance between the end of the first guide surface close to the base plate and the installation box is greater than a distance between the end of the second guide surface away from the base plate and the installation box, and is smaller than a distance between the end of the second guide surface close to the base plate and the installation box.

[0010] Further, the pressure plate includes a first pressure portion and a second pressure portion, the second pressure portion is connected to an end of the first pressure portion close to the bottom plate, the second pressure portion presses against the first guide surface or the second guide surface, and when the second pressure portion presses against the second guide surface, the first pressure portion presses against the first guide surface.

[0011] Furthermore, the limit block is arranged at one end of the first limit strip and the second limit strip close to the base plate, and a limit groove is provided at one end of the installation box close to the base plate. The limit groove passes through one end of the installation box close to the base plate and is used to accommodate the limit block.

[0012] Furthermore, the fixed frame is arranged on a side of the installation box away from the side plate, and includes a first frame and a second frame that are arranged opposite to and connected to each other, and the side of the second frame close to the first frame is protruded with the pressure plate toward the first frame.

[0013] Furthermore, a first fixing plate is provided at one end of the first frame body close to the bottom plate, the first fixing plate is connected to the bottom plate, the bottom plate is provided with a positioning boss, the first fixing plate is provided with a positioning groove, and the positioning boss is received in the positioning groove.

[0014] Furthermore, a second fixing plate is provided at one end of the first frame away from the bottom plate, the shell further comprises a top plate, the top plate cover is provided at one end of the side plate away from the bottom plate, and the second fixing plate is connected to the top plate.

[0015] Furthermore, the circuit board is sandwiched between the first frame and the second frame, and connected to the first frame and the second frame, and the light guide module is electrically connected to the circuit board.

[0016] Furthermore, a first through hole is provided on a side of the installation box close to the side plate, and a second through hole corresponding to the first through hole is provided on the side plate, and the first through hole and the second through hole are used for the light guide module to pass through.

[0017] Compared with the prior art, the light guide module fixing structure of the present application achieves the limitation of the installation box in two directions by pressing one side of the installation box against the first limiting strip and pressing the bottom end of the installation box against the limiting block, and the fixing frame presses the installation box against the side plate by pressing the fixing frame against the side plate. In addition, the fixing frame is fixed in the shell, and the installation box is clamped between the fixing frame and the side plate in one direction and between the circuit board and the first limiting strip in another direction, and is supported at the bottom end of the installation box by the limiting block, so that the installation box is fixed, thereby achieving the rapid installation of the light guide module installed in the installation box, and the entire light guide module fixing structure has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 1 is a three-dimensional schematic diagram of a light guide module fixing structure of the present application in one embodiment.

[0019] Figure 2 FIG. 1 is an exploded schematic diagram of a light guide module fixing structure of the present application in one embodiment.

[0020] Figure 3 for Figure 2 Schematic diagram of the internal structure of the shell of the light guide module fixing structure.

[0021] Figure 4 for Figure 1 A schematic cross-sectional view of the light guide module fixing structure along the IV-IV direction.

[0022] Figure 5 FIG. 1 is a three-dimensional schematic diagram of a mounting box of a light guide module fixing structure of the present application in one embodiment.

[0023] Figure 6 FIG. 1 is an exploded schematic diagram of a fixing frame of the light guide module fixing structure of the present application in one embodiment.

[0024] Figure 7 for Figure 1 A schematic cross-sectional view of the light guide module fixing structure along the VII-VII direction.

[0025] Figure 8 for Figure 2 Schematic diagram of installation of the second frame and the installation box of the light guide module fixing structure.

[0026] Description of main component symbols:

[0027] Light guide module fixing structure 100

[0028] Housing 10

[0029] Side panel 11

[0030] Lumen 110

[0031] The first limit bar 111

[0032] The second limit strip 112

[0033] Limit block 113

[0034] Mounting slot 114

[0035] Second perforation 115

[0036] Bottom plate 12

[0037] Positioning boss 121

[0038] Top plate 13

[0039] Mounting Box 20

[0040] Box body 21

[0041] First perforation 210

[0042] Storage tank 211

[0043] Limiting slot 212

[0044] End cap 22

[0045] Installation port 220

[0046] First rib 23

[0047] The first guide portion 231

[0048] First guide surface 2310

[0049] The first support portion 232

[0050] First support wall 2320

[0051] Second rib 24

[0052] The second guide portion 241

[0053] Second guide surface 2410

[0054] The second supporting portion 242

[0055] Second support wall 2420

[0056] Light guide module 30

[0057] Light guide 31

[0058] Key 32

[0059] Circuit board 40

[0060] The third connecting hole 41

[0061] Fixed frame 50

[0062] First frame 51

[0063] First connecting column 511

[0064] First connection hole 5110

[0065] Second frame 52

[0066] The second connecting column 521

[0067] Second connection hole 5210

[0068] First fixing plate 53

[0069] Positioning slot 530

[0070] Second fixing plate 54

[0071] Pressure plate 55

[0072] The first pressing portion 551

[0073] The first pressing surface 5510

[0074] The second pressing portion 552

[0075] The second pressing surface 5520

[0076] First side wall P1

[0077] Second side wall P2

[0078] First side W1

[0079] Second side W2

[0080] Third side W3

[0081] Fourth side W4

[0082] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0083] The following description will refer to the accompanying drawings to more fully describe the content of the present application. Shown in the accompanying drawings are exemplary embodiments of the present application. However, the present application can be implemented in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals represent identical or similar components.

[0084] The terms used herein are only used for the purpose of describing specific exemplary embodiments and are not intended to limit the present application. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include the plural forms. In addition, when used herein, "including" and / or "comprising" and / or "having", integers, steps, operations, components and / or components, but do not exclude the existence or addition of one or more other features, regions, integers, steps, operations, components and / or groups thereof.

[0085] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. In addition, unless explicitly defined herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the relevant technology and the content of this application, and will not be interpreted as an idealized or overly formal meaning.

[0086] The specific implementation methods of the present application are further described in detail below with reference to the accompanying drawings.

[0087] See also Figures 1 to 4 The light guide module fixing structure 100 of the present application includes a housing 10 , a mounting box 20 , a light guide module 30 , a circuit board 40 and a fixing frame 50 .

[0088] The shell 10 is generally arranged in a barrel-shaped structure, and includes a bottom plate 12, a side plate 11 arranged around the bottom plate 12, and a top plate 13 covering one end of the side plate 11 away from the bottom plate 12. The side plate 11 is arranged in an annular structure, and is arranged to form an inner cavity 110. A first limiting strip 111, a second limiting strip 112, and a limiting block 113 are arranged on the inner wall of one side of the side plate 11. The side wall of the side plate 11 provided with the first limiting strip 111, the second limiting strip 112, and the limiting block 113 is set as the first side wall P1, and the inner wall of the side plate 11 arranged opposite to the first side wall P1 is set as the second side wall P2. Among them, the first limiting strip 111, the second limiting strip 112, and the limiting block 113 are all formed by protruding from the first side wall P1 toward the second side wall P2. The first limiting strip 111 and the second limiting strip 112 are arranged at intervals, so that a mounting groove 114 is formed between the first limiting strip 111 and the second limiting strip 112. The limiting block 113 is located between the first limiting strip 111 and the second limiting strip 112, and the limiting block 113 is approximately located at one end of the first limiting strip 111 and the second limiting strip 112 close to the bottom plate 12, that is, the limiting block 113 faces the top end of the top plate 13, and is located below the top end of the first limiting strip 111 and the second limiting strip 112 facing the top plate 13.

[0089] The installation box 20 is generally in a square structure with a hollow interior and is disposed in the inner cavity 110. The light guide module 30 is fixed in the installation box 20. The installation box 20 is partially located in the installation groove 114, and the portion of the installation box 20 located in the installation groove 114 abuts against the first limit bar 111, and the bottom end of the installation box 20 abuts against the top end of the limit block 113, so that the installation box 20 is supported by the limit block 113.

[0090] Specific as Figure 3 See Figure 7 The installation box 20 has a first side W1 and a second side W2 that are arranged opposite to each other. The first side W1 abuts against the first limit strip 111, and the second side W2 is arranged toward the second limit strip 112 and is spaced apart from the second limit strip 112. In addition, the installation box 20 also has a third side W3 and a fourth side W4 that are arranged opposite to each other. The third side W3 is arranged toward the first side wall P1, and the fourth side W4 is arranged toward the second side wall P2.

[0091] The fixing frame 50 is fixed in the inner cavity 110, and the fixing frame 50 is located between the installation box 20 and the second side wall P2. The circuit board 40 is installed on the fixing frame 50. One side of the circuit board 40 close to the first side wall P1 is accommodated in the gap formed between the second limiting strip 112 and the installation box 20, and one side of the circuit board 40 abuts against the second side W2 of the installation box 20 to clamp the installation box 20 between the circuit board 40 and the first limiting strip 111. A pressing plate 55 is provided on one side of the fixing frame 50, and the pressing plate 55 is used to press the fourth side W4 of the installation box 20, so that the third side W3 of the installation box 20 abuts against the first side wall P1 of the housing 10, so that the installation box 20 is clamped between the first side wall P1 and the pressing plate 55.

[0092] In this way, the light guide module fixing structure 100 of the present application achieves the limitation of the installation box 20 in two directions by pressing one side of the installation box 20 against the first limiting strip 111 and pressing the bottom end of the installation box 20 against the limiting block 113, and the fixing frame 50 presses the installation box 20 against the side plate 11 by pressing the fixing frame 50 against the side plate 11. In addition, the fixing frame 50 is fixed in the shell 10, and the installation box 20 is not only clamped between the circuit board 40 and the first limiting strip 111 in one direction, but also clamped between the fixing frame 50 and the side plate 11 in another direction, and supported at the bottom end of the installation box 20 by the limiting block 113, so that the installation box 20 is fixed, thereby achieving the rapid installation of the light guide module 30 installed in the installation box 20, and the structure of the entire light guide module fixing structure 100 is simple and the cost is low.

[0093] Please combine again Figures 2 to 5In one embodiment, the fourth side W4 of the installation box 20 is provided with a first rib 23 and a second rib 24 at intervals, and the second rib 24 extends in the vertical direction and is located at an end of the first rib 23 close to the bottom plate 12. The first rib 23 and the second rib 24 are both provided on the wall surface of the fourth side W4 and extend perpendicularly to the fourth side W4, and the first rib 23 and the second rib 24 are both extended in the vertical direction. In particular, the first rib 23 and the second rib 24 are both provided with two, the two first ribs 23 are provided in parallel, and the two second ribs 24 are provided in parallel.

[0094] The first rib 23 includes a first guide portion 231 and a first support portion 232. The first support portion 232 is formed by extending from one side of the first guide portion 231, and the surfaces of one side of the first guide portion 231 and the first guide portion 231 are coplanar with each other. The first guide portion 231 is close to the top of the installation box 20 and is arranged in a triangular shape. The first support portion 232 extending from the first guide portion 231 extends toward the middle of the installation box 20 and is located on the inner side of the first guide portion 231. The first support portion 232 is arranged in a substantially square shape. The height of the first guide portion 231 gradually decreases from one end connected to the first support portion 232 toward one end away from the first support portion 232, so that an inclined first guide surface 2310 is formed on one side thereof facing the pressing plate 55. The first guide surface 2310 is arranged to be inclined toward the installation box 20 from one end of the first support portion 232 facing the pressing plate 55. When the pressing plate 55 slides downward along the first guide surface 2310 , the pressing plate 55 applies a thrust to the first guide portion 231 , thereby pushing the installation box 20 to move toward the first side wall P1 .

[0095] The side of the first support portion 232 facing the pressure plate 55 is set as a first support wall 2320, and the bottom end of the first guide surface 2310 is connected to the top end of the first support wall 2320, so that the pressure plate 55 can slide downward along the first guide surface 2310 until it hits the first support wall 2320, and then the installation box 20 is pressed against the first side wall P1 of the side plate 11 through the pressure plate 55.

[0096] The second rib 24 includes a second guide portion 241 and a second support portion 242, the second support portion 242 is formed by extending from one side of the second guide portion 241, and the two are coplanar with one side surface connected to the installation box 20. The second guide portion 241 is close to the top of the installation box 20 and is arranged in a triangular shape, and the second support portion 242 extending from the second guide portion 241 extends toward the middle of the installation box 20 and is located on the inner side of the second guide portion 241. The second support portion 242 is arranged in a roughly square shape. The height of the second guide portion 241 gradually decreases from one end connected to the second support portion 242 toward one end away from the second support portion 242, so that an inclined second guide surface 2410 is formed on the side thereof facing the pressing plate 55. The second guide surface 2410 is inclined toward the installation box 20 from one end of the second support portion 242 facing the pressing plate 55. When the pressing plate 55 slides downward along the second guide surface 2410 , the pressing plate 55 applies a thrust to the second guide portion 241 , thereby pushing the installation box 20 to move toward the first side wall P1 of the side plate 11 .

[0097] The side of the second support portion 242 facing the pressure plate 55 is set as a second support wall 2420, and the bottom end of the second guide surface 2410 is connected to the top end of the second support wall 2420, so that the pressure plate 55 can slide downward along the second guide surface 2410 until it hits the second support wall 2420, and then the installation box 20 is pressed against the first side wall P1 of the side plate 11 through the pressure plate 55.

[0098] In particular, the first guide surface 2310 is arranged in parallel with the second guide surface 2410 to ensure that when the pressing plate 55 presses against the first guide surface 2310 and the second guide surface 2410 to push the installation box 20 to move, the installation box 20 can move stably. The distance between the bottom end of the first guide surface 2310 and the fourth side W4 is set to the first distance. The distance between the top end of the second guide surface 2410 and the fourth side W4 is set to the second distance. The distance between the bottom end of the second guide surface 2410 and the fourth side W4 is set to the third distance. Among them, the first distance is greater than the second distance and less than the third distance, so that when the pressing plate 55 moves downward, the pressing plate 55 will press against the second guide surface 2410 after passing through the first rib plate 23 and slide downward along the second guide surface 2410, and then push the installation box 20 to continue to move toward the first side wall P1 of the side plate 11, and guide the pressing plate 55 to slide downward to press against the second support wall 2420 through the second guide surface 2410.

[0099] Please combine again Figures 5 to 7In one embodiment, the fixing frame 50 includes a first frame body 51 and a second frame body 52 which are arranged opposite to each other and connected to each other. The first frame body 51 and the second frame body 52 are both substantially flat plate structures arranged in the vertical direction, and the first frame body 51 and the second frame body 52 are arranged in parallel and spaced apart. A first connecting column 511 protrudes from one side of the first frame body 51, and the first connecting column 511 extends toward the second frame body 52, and the first connecting column 511 is penetrated by a first connecting hole 5110. A second connecting column 521 protrudes from one side of the second frame body 52. ​​The second connecting column 521 extends toward the first frame body 51, and one end thereof abuts against the first connecting column 511. The second connecting column 521 is provided with a second connecting hole 5210. The second connection hole 5210 passes through the second connection column 521, and the second connection hole 5210 is coaxially arranged with the first connection hole 5110. A fastener such as a screw is passed through the second connection hole 5210 and then extends into the first connection hole 5110, so that the first frame 51 and the second frame 52 are fixedly connected by fasteners such as screws.

[0100] A pressing plate 55 is provided on one side of the second frame 52, and the pressing plate 55 extends toward the first frame 51. The pressing plate 55 and the second connecting column 521 are disposed on the same side of the second frame 52. The pressing plate 55 includes an integrally formed first pressing portion 551 and a second pressing portion 552, and the second pressing portion 552 is connected to the bottom end of the first pressing portion 551.

[0101] In particular, the first pressing portion 551 has a first pressing surface 5510, and the first pressing surface 5510 faces the installation box 20. The second pressing portion 552 has a second pressing surface 5520, and the second pressing surface 5520 faces the installation box 20. The first pressing surface 5510 and the second pressing surface 5520 both extend in the vertical direction. The spacing between the first pressing surface 5510 and the fourth side W4 of the installation box 20 is greater than the spacing between the second pressing surface 5520 and the fourth side W4 of the installation box 20, and the spacing between the first pressing surface 5510 and the second pressing surface 5520 in the horizontal direction is set to a fourth spacing. The fourth spacing is the same as the difference between the third spacing and the first spacing, so that when the second pressing portion 552 abuts against the second supporting portion 242, the first pressing portion 551 just abuts against the first supporting portion 232.

[0102] In this way, when the fixing frame 50 needs to be installed in the housing 10, the bottom end of the fixing frame 50 is moved downward in the vertical direction, and the second pressing portion 552 presses against the first guide surface 2310 and slides downward along the first guide surface 2310, so that the second pressing portion 552 applies a thrust to the first guide portion 231, so that the installation box 20 moves toward the first side wall P1 of the side plate 11, until the second pressing portion 552 moves along the first guide surface 2310 to the first support portion 232, the second pressing portion 552 no longer applies a thrust to the installation box 20, and the installation box 20 stops sliding. Subsequently, the second pressing portion 552 continues to slide downward along the first support portion 232 until the second pressing portion 552 moves to press against the second guide surface 2410, and the second pressing portion 552 begins to slide downward along the second guide surface 2410 and applies a thrust to the second guide portion 241. When the second pressing portion 552 abuts against the second guide surface 2410, the first pressing portion 551 also moves downward to abut against the first guide surface 2310, and the first pressing portion 551 applies a thrust to the first guide portion 231, so that the installation box 20 continues to move toward the side plate 11 under the joint pushing action of the first pressing portion 551 and the second pressing portion 552. Finally, when the second pressing portion 552 moves to abut against the second support portion 242, and when the first pressing portion 551 moves to abut against the first support portion 232, the third side W3 of the installation box 20 just abuts against the first side wall P1 of the side plate 11, so that the installation box 20 is clamped between the pressing plate 55 and the side plate 11.

[0103] Please combine again Figure 6 , and see Figure 2 and Figure 3 In one embodiment, a first fixing plate 53 is provided at the bottom end of the first frame 51. The first fixing plate 53 is a flat plate structure formed by extending from one side of the bottom end of the first frame 51 toward the second frame 52. The first fixing plate 53 abuts against the top of the bottom plate 12 and is connected to the bottom plate 12 by fasteners such as screws, so that the bottom end of the fixing frame 50 is fixed to the bottom plate 12.

[0104] The bottom plate 12 is provided with a positioning boss 121, which is formed by protruding from the top of the bottom plate 12 toward the top plate 13. The first fixing plate 53 is provided with a positioning groove 530, which penetrates the first fixing plate 53. The positioning boss 121 is adapted in shape to the positioning groove 530 and is received in the positioning groove 530, so that when the fixing frame 50 is installed in the housing 10, the first fixing plate 53 is aligned with the bottom plate 12 through the positioning effect of the positioning boss 121 and the positioning groove 530, so that the first fixing plate 53 is quickly fixedly connected to the bottom plate 12 by fasteners such as screws.

[0105] Furthermore, a second fixing plate 54 is provided at the top of the first frame 51, and the second fixing plate 54 is a flat plate structure formed by extending from one side of the top of the first frame 51 toward the second frame 52. The second fixing plate 54 abuts against the bottom end of the top plate 13, and is connected to the top plate 13 by fasteners such as screws, so that the top of the fixing frame 50 is fixed to the top plate 13. In this way, the fixing frame 50 is fixed to the bottom plate 12 and the top plate 13 respectively by screw connection, so that the fixing frame 50 is detachably fixed in the housing 10.

[0106] Please combine again Figures 6 to 8 , and see Figure 4 In one embodiment, the circuit board 40 is sandwiched between the first frame 51 and the second frame 52 , and is connected to the first frame 51 and the second frame 52 .

[0107] Specifically, the circuit board 40 is placed in the vertical direction, and the two side walls of the circuit board 40 respectively abut against the first connection column 511 and the second connection column 521. The circuit board 40 is provided with a third connection hole 41, and the third connection hole 41 is respectively arranged corresponding to the first connection hole 5110 and the second connection hole 5210, so that the first frame 51, the circuit board 40 and the second frame 52 are fixed to each other by fasteners such as screws passing through the second connection hole 5210, the third connection hole 41 and the first connection hole 5110 in sequence.

[0108] The installation box 20 includes a box body 21 and an end cover 22. A receiving groove 211 is provided on one side of the box body 21 close to the circuit board 40. The end cover 22 is provided on the side of the box body 21 where the receiving groove 211 is provided, and the end cover 22 is abutted against the circuit board 40. The light guide module 30 is snapped into the receiving groove 211, and includes a light guide column 31 and a button 32. The end cover 22 is provided with a plurality of mounting openings 220, and the plurality of mounting openings 220 all penetrate the end cover 22 and are in communication with the receiving groove 211. One end of the light guide column 31 and the button 32 passes through the corresponding mounting openings 220 and is electrically connected to the circuit board 40.

[0109] Please combine again Figure 4 and Figure 5 In one embodiment, a limiting groove 212 is provided at the bottom of the box body 21, and the limiting groove 212 is formed by being recessed inward from the bottom surface of the box body 21. The limiting groove 212 is used to receive the limiting block 113, so that the limiting block 113 applies a supporting force to the box body 21, so that the installation box 20 is supported on the limiting block 113. The two side walls of the limiting block 113 that are oppositely arranged correspond to the two inner walls of the limiting groove 212, so that the limiting block 113 guides the movement of the installation box 20.

[0110] Please combine again Figure 6 and Figure 7 , and see Figure 2In one embodiment, a plurality of first through holes 210 are provided on one side of the first side wall P1 of the box body 21 close to the side plate 11. The plurality of first through holes 210 are arranged at intervals in the vertical direction, and the other ends of the light guide column 31 and the button 32 pass through the plurality of first through holes 210, respectively. The side plate 11 is provided with a plurality of second through holes 115 corresponding to the plurality of first through holes 210, and one end of the light guide column 31 and the button 32 passing through the first through hole 210 and then passing through the second through hole 115 is exposed to the housing 10.

[0111] The following is an explanation of how to install this application:

[0112] First, align the bottom end of the installation box 20 with the limit block 113 and place it on the limit block 113, and fix the circuit board 40 on the fixing frame 50. Then, put the fixing frame 50 into the housing 10, and the circuit board 40 presses the installation box 20 against the first limit bar 111, so that the light guide module 30 is aligned with the second through hole 115. Next, move the fixing frame 50 toward the bottom plate 12. During this process, the pressing plate 55 presses against the first rib 23 and the second rib 24 to move the installation box 20 along the limit block 113 toward the side plate 11 until the fixing frame 50 moves to abut against the bottom plate 12. At this time, the fixing frame 50 is aligned with the positioning boss 121, and the pressing plate 55 presses the installation box 20 against the side plate 11 of the housing 10, and one end of the light guide module 30 passes through the second through hole 115 and is exposed to the housing 10. Finally, the first fixing plate 53 and the bottom plate 12 are fixed by screws, and the top plate 13 is placed on the second fixing plate 54 and then the top plate 13 and the second fixing plate 54 are fixed by screws.

[0113] In the above, the specific embodiments of the present application are described with reference to the accompanying drawings. However, those skilled in the art will appreciate that various changes and substitutions may be made to the specific embodiments of the present application without departing from the scope of the present application. These changes and substitutions are all within the scope defined by the present application.

Claims

1. A light guide module fixing structure, It is characterized in that include: The housing comprises a bottom plate and a side plate arranged around the bottom plate, wherein the inner wall of the side plate is provided with a first limiting strip, a second limiting strip and a limiting block located at one end of the first limiting strip and the second limiting strip, and a mounting groove is formed between the first limiting strip and the second limiting strip; An installation box is arranged in the housing and is used to install the light guide module. The installation box is partially received in the installation slot, and one side of the installation box abuts against the first limit strip and one end abuts against the limit block; A fixing frame is used to install a circuit board and is accommodated in the shell. A gap is formed between the second limiting strip and the installation box to accommodate one side of the circuit board, and the circuit board presses against the side of the installation box away from the first limiting strip. A pressing plate is provided on one side of the fixing frame, and the pressing plate is used to press against the other side of the installation box, so that the side of the installation box away from the pressing plate presses against the side plate of the shell.

2. The light guide module fixing structure according to claim 1, It is characterized in that A first rib and a second rib are provided at intervals on one side of the mounting box close to the pressure plate, and an inclined first guide surface and a second guide surface are respectively provided on the first rib and the second rib facing the pressure plate, and the pressure plate abuts against the first guide surface and the second guide surface and can slide relative to the first guide surface and the second guide surface.

3. The light guide module fixing structure according to claim 2, It is characterized in that The first guide surface and the second guide surface are both inclined from an end away from the base plate toward an end close to the base plate in a direction away from the installation box. The second guide surface is located at an end of the first guide surface close to the base plate. The distance between the end of the first guide surface close to the base plate and the installation box is greater than the distance between the end of the second guide surface away from the base plate and the installation box, and is smaller than the distance between the end of the second guide surface close to the base plate and the installation box.

4. The light guide module fixing structure according to claim 3, It is characterized in that The pressure plate includes a first pressure portion and a second pressure portion, the second pressure portion is connected to an end of the first pressure portion close to the bottom plate, the second pressure portion presses against the first guide surface or the second guide surface, and when the second pressure portion presses against the second guide surface, the first pressure portion presses against the first guide surface.

5. The light guide module fixing structure according to claim 1, It is characterized in that The limit block is arranged at one end of the first limit strip and the second limit strip close to the bottom plate, and a limit groove is arranged at one end of the installation box close to the bottom plate. The limit groove passes through one end of the installation box close to the bottom plate and is used to accommodate the limit block.

6. The light guide module fixing structure according to claim 1, It is characterized in that The fixed frame is arranged on a side of the installation box away from the side plate, and comprises a first frame body and a second frame body which are arranged opposite to and connected to each other, and a side of the second frame body close to the first frame body is provided with the pressing plate protruding toward the first frame body.

7. The light guide module fixing structure according to claim 6, It is characterized in that A first fixing plate is provided at one end of the first frame body close to the bottom plate, the first fixing plate is connected to the bottom plate, the bottom plate is provided with a positioning boss, the first fixing plate is provided with a positioning groove, and the positioning boss is accommodated in the positioning groove.

8. The light guide module fixing structure according to claim 6, It is characterized in that A second fixing plate is disposed at one end of the first frame away from the bottom plate. The shell further comprises a top plate, the top plate cover is disposed at one end of the side plate away from the bottom plate, and the second fixing plate is connected to the top plate.

9. The light guide module fixing structure according to claim 6, It is characterized in that The circuit board is sandwiched between the first frame and the second frame, and connected to the first frame and the second frame. The light guide module is electrically connected to the circuit board.

10. The light guide module fixing structure according to claim 1, It is characterized in that A first through hole is provided on a side of the installation box close to the side plate, and a second through hole corresponding to the first through hole is provided on the side plate. The first through hole and the second through hole are provided for the light guide module to pass through.

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