A circuit board fixing bracket for earphone disinfection box

Abstract

The utility model relates to the field of earphone disinfection box accessories, a circuit board fixing bracket for earphone disinfection box, comprising a main body, with extensions provided at the left and right ends of the rear side of the main body, so that the main body and the two extensions form a "T"-shaped profile on the horizontal end surface, and an edge of the outer end of each extension is provided with a first connecting piece bent upward, and the other edge of the outer end of each extension is provided with a bending portion bent forward, and a second connecting piece and a third connecting piece are provided on the bending portion, and the second connecting piece and the third connecting piece are respectively provided with a second through hole and a third through hole for matching fasteners to connect with the circuit board, and the second through hole and the third through hole are staggered longitudinally and transversely, and an upwardly bent connecting portion is provided at the outer free end of the bending portion, and the two ends of the connecting portion are respectively connected to the outer free ends of the extensions on the left and right sides of the main body to form a three-dimensional closed loop structure. The utility model provides an earphone disinfection box circuit board fixing bracket, which is conducive to improving the assembly stability of the circuit board.

Description

Technical Field

[0001] The utility model relates to the field of earphone disinfection box accessories, in particular to an earphone disinfection box circuit board fixing bracket. Background Art

[0002] Bluetooth headsets are hands-free headsets that use Bluetooth technology, allowing users to avoid the entanglement of annoying wires and achieve short-distance wireless communication.

[0003] When in use, bacteria and viruses carried on the earphones can easily enter the user's cochlea and cause ear diseases. The earphone disinfection box can be used to disinfect the earphones. Many existing earphone disinfection boxes have a box structure, as shown in Chinese patent CN210472644U, which is a box structure with a flat circuit board inside. For the assembly and fixation of the circuit board, some manufacturers use a bracket to set several mounting bosses inside the box body and directly lock and fix them with screws. This installation method is too simple and has no reasonable limit constraint structure. During use, the locking screws of the circuit board are easily loosened due to the collision of the box body, which causes the circuit board to shake and cause poor contact or structural damage to electronic components. Utility Model Content

[0004] The utility model provides a circuit board fixing bracket for an earphone disinfection box, which is beneficial to improving the assembly stability of the circuit board.

[0005] The utility model is achieved in this way:

[0006] A circuit board fixing bracket for an earphone disinfection box comprises a main body, which is a horizontal plate structure. The front side of the main body is bent downward to form a first clamping edge. Extensions are provided at the left and right ends of the rear side of the main body. The two extensions extend outward in the left and right directions relative to the main body, so that the main body and the two extensions form a "T"-shaped profile on the horizontal end surface. An edge of the outer end of each extension is provided with a first connecting piece bent upward, a first through hole is provided on the first connecting piece, and a bent portion bent forward is provided on the other edge of the outer end of each extension. A second connecting piece and a third connecting piece are provided on the bent portion, and a second through hole and a third through hole for matching a fastener to connect with the circuit board are respectively provided on the second connecting piece and the third through hole, the second through hole and the third through hole are staggered longitudinally and transversely, and an upwardly bent connecting portion is provided at the outer free end of the bending portion, and the two ends of the connecting portion are respectively connected to the outer free ends of the extension portions on the left and right sides of the main body to form a three-dimensional closed-loop structure.

[0007] On the basis of the above technical solution, the bending portion includes a first bending portion and a second bending portion connected end to end, and the first bending portion and the second bending portion are perpendicular to each other.

[0008] Based on the above technical solution, the first bending portion and the second bending portion are both "L"-shaped structures, the first bending portion forms a bending structure on the horizontal end surface, and the second bending portion forms a bending structure on the longitudinal end surface, and the first bending portion and the second bending portion are connected by a horizontal supporting portion, and the supporting portion is a horizontal plate structure facing front and back.

[0009] On the basis of the above technical solution, an edge of the first bending portion is provided with a second connecting piece bent upward, the second through hole is located on the second connecting piece, and the second through hole penetrates the second connecting piece longitudinally; the horizontal outer edge of the supporting portion is provided with a horizontally extending third connecting piece, the third through hole is located on the third connecting piece, and the third through hole penetrates the third connecting piece longitudinally.

[0010] On the basis of the above technical solution, a transversely extending fourth connecting piece is provided at the transverse outer edge of the second bending portion, a fourth through hole is provided on the fourth connecting piece, and the fourth through hole horizontally penetrates the fourth connecting piece front to back.

[0011] Based on the above technical solution, a gap is provided on the rear side of the main body between the left and right extension parts.

[0012] On the basis of the above technical solution, a plurality of fifth through holes and hollow parts are provided on the connecting part, and the fifth through holes and hollow parts horizontally penetrate the connecting part front to back.

[0013] On the basis of the above technical solution, a second locking edge extending horizontally forward is provided at the center position of the bottom edge of the connecting portion, and the second locking edge is a strip plate structure perpendicular to the connecting portion.

[0014] On the basis of the above technical solution, a plurality of linearly raised flexible flanges are provided in the central area of ​​the main body.

[0015] On the basis of the above technical solution, the first through hole and the second through hole are countersunk through hole structures.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model forms a three-dimensional closed-loop structure through the main body, extension part, bending part and connecting part, so that the overall structure has a certain structural stability and can provide a stable support for the circuit board. In addition, the main body can serve as the main supporting structure of the circuit board, and utilizes the second through hole and the third through hole distributed in a staggered manner to form a longitudinal double-sided limiting and locking structure for the circuit board, so that the installation of the circuit board is more stable and is subject to limiting constraints, and the assembly stability is sufficient. In addition, the ability to withstand impact is also stronger, therefore, it is beneficial to improve the assembly stability of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a circuit board fixing bracket of an earphone disinfection box in one embodiment;

[0020] Figure 2 This is a schematic diagram of the installation position of a circuit board according to an embodiment;

[0021] Figure 3 for Figure 1 A partial enlarged view of the first connecting piece;

[0022] Figure 4 It is a schematic structural diagram of the main body in another embodiment.

[0023] Markings in the figure: 1. main body; 11. first clamping edge; 12. extension portion; 13. first bending portion; 14. supporting portion; 15. second bending portion; 16. first notch; 2. first connecting piece; 21. first through hole; 22. sink; 3. second connecting piece; 31. second through hole; 4. third connecting piece; 41. third through hole; 5. fourth connecting piece; 51. fourth through hole; 6. connecting portion; 61. fifth through hole; 62. hollow portion; 63. second notch; 7. second clamping edge; 8. flexible flange. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0025] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to an element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0027] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1: Combination Figure 1-3 The present embodiment discloses a circuit board fixing bracket of an earphone disinfection box, which is applied inside the shell of the earphone disinfection box to provide support and protection for the installation of the circuit board.

[0029] The fixing bracket is specifically a sheet metal structure, which includes a main body 1, which is a horizontal plate structure, especially a rectangular thin plate structure. The front side of the main body 1 is bent downward to form a first clamping edge 11. The length of the first clamping edge 11 is 2-5 times the thickness of the main body 1. In this embodiment, the length of the first clamping edge 11 is 3 times the thickness of the main body. The function of the first clamping edge 11 is to increase the structural strength of the front area of ​​the main body 1 so that it is not easy to deform. In addition, the first clamping edge 11 can also cooperate with the specific clamping groove in the inner cavity of the box body during installation to form a clamping structure, so that the assembly of the main body 1 is more stable and reliable, and it can be accurately and reliably positioned during assembly and pre-fixation.

[0030] Extensions 12 are provided at the left and right ends of the rear side of the main body 1. The extensions 12 play the role of extending the overall structure horizontally, so that the overall structure can meet the subsequent installation requirements of the circuit board located above. The two extensions 12 extend outward in the left and right directions relative to the main body 1, so that the main body 1 and the two extensions 12 form a "T"-shaped profile on the horizontal end surface. In order to make the connection between the two extensions 12 and the main body 1 have a certain degree of flexibility and meet the slight folding and deformation activities under specific circumstances, a first notch 16 is provided on the rear side of the main body 1 between the left and right extensions 12.

[0031] A first connecting piece 2 bent upward is provided at one edge of the outer end of each extension portion 12, and a first through hole 21 is provided on the first connecting piece 2. A bending portion bent forward is provided at the other edge of the outer end of each extension portion 12, and a second connecting piece 3 and a third connecting piece 4 are provided on the bending portion. The second connecting piece 3 and the third connecting piece 4 are respectively provided with a second through hole 31 and a third through hole 41 for connecting with the circuit board with a fastener. The second through hole 31 and the third through hole 41 are staggered both longitudinally and transversely. A connecting portion 6 bent upward is provided at the outer free end of the bending portion, and both ends of the connecting portion 6 are respectively connected to the outer free ends of the extension portion 12 on the left and right sides of the main body 1 to form a three-dimensional closed-loop structure.

[0032] Specific, combined Figure 1 , the above structure is described in detail by taking the extension part 12 on the right side of the main body 1 as an example. Among them, the right side of the extension part 12 is connected to the first connecting piece 2, and the first connecting piece 2 is an inverted "L"-shaped structure in the longitudinal direction, and its top has a horizontal end surface, and a first through hole 21 is arranged on the horizontal end surface. The first through hole 21 vertically penetrates the top structure of the first connecting piece 2. When assembling, the bending structure of the first connecting piece 2 can be adapted to the contour of the inner cavity of the box body, and has a fitting effect. The first through hole 21 is used to penetrate screws for fixing, so that a fixed connection structure is formed between the first connecting piece 2 and the box body.

[0033] Furthermore, the front edge of the right side end of the extension portion 12 is connected to a bending portion, and the bending portion includes a first bending portion 13 and a second bending portion 15 connected end to end, and the first bending portion 13 and the second bending portion 15 are perpendicular to each other. The first bending portion 13 and the second bending portion 15 are both "L"-shaped structures, the first bending portion 13 forms a bending structure on the horizontal end surface, and the second bending portion 15 forms a bending structure on the longitudinal end surface. The first bending portion 13 and the second bending portion 15 are connected by a horizontal supporting portion 14, and the supporting portion 14 is a horizontal plate structure facing forward and backward. Figure 2 As shown, in actual use, the supporting portion 14 and the main body 1 serve as the core fitting area at the bottom of the circuit board and can stably support the circuit board.

[0034] Furthermore, the front edge of the first bending portion 13 is provided with a second connecting piece 3 bent upward, the second through hole 31 is located on the second connecting piece 3, and the second through hole 31 vertically penetrates the second connecting piece 3, the second connecting piece 3 has the same structure as the first connecting piece 2 but faces in different directions, the first connecting piece 2 faces the right side (here the first connecting piece 2 located on the right side of the main body 1 is taken as an example, it should be noted that the first connecting piece 2 on the other side faces the left side), and the second connecting piece 3 at this position faces the front side. The inner corner of the second connecting piece 3 can limit the rear side of the circuit board after the circuit board is installed.

[0035] A third connecting piece 4 extending horizontally is disposed on the horizontal outer edge of the supporting portion 14 . The third through hole 41 is located on the third connecting piece 4 , and the third through hole 41 penetrates the third connecting piece 4 longitudinally.

[0036] The second through hole 31 and the third through hole 41 are used to cooperate with screws to lock and fix the circuit board from the upper and lower sides of the circuit board respectively.

[0037] The transverse outer edge of the second bending portion 15 is provided with a transversely extending fourth connecting piece 5, and the fourth connecting piece 5 is provided with a fourth through hole 51. The fourth through hole 51 horizontally penetrates the fourth connecting piece 5 from front to back. In actual use, the fourth through hole 51 is used to cooperate with screws to connect and fix with the inner wall of the box body.

[0038] The connecting part 6 is a strip-shaped thin plate structure, and the connecting part 6 is in a vertical relationship with the main body 1. The connecting part 6 is provided with a plurality of fifth through holes 61 and hollow parts 62, and the fifth through holes 61 and hollow parts 62 horizontally penetrate the connecting part 6 from front to back. In actual use, the fifth through holes 61 are used to match the screws to connect and fix with the inner wall of the box body, and the hollow parts 62 are used to adapt to the positioning flange with a specific design of the contour of the box body, so as to achieve the effect of mutual clamping and positioning. The second notches 63 located at the upper and lower ends of the connecting part 6 can play the same role. Another function of the hollow parts 62 is to enhance the structural flexibility of the connecting part 6.

[0039] Furthermore, a second snap-in flange 7 extending horizontally forward is provided at the center position of the bottom edge of the connecting portion 6. The second snap-in flange 7 is a strip plate structure perpendicular to the connecting portion 6. The length of the second snap-in flange 7 is 2-5 times the width of the connecting portion 6. In this embodiment, the length of the second snap-in flange 7 is 4 times the width of the connecting portion 6. Its function is to vertically extend the middle structure of the connecting portion 6, so that the connecting portion 6 can rely on the second snap-in flange 7 to form a stable snap-in structure with the internal structure of the box body during installation, and the structural strength of the connecting portion 6 is greatly improved, and it will not be easily deformed.

[0040] In this embodiment, the first through hole 21 and the second through hole 31 are countersunk through hole structures, and a sink 22 is provided on the top of the through hole, which can be used to place a micro elastic pad to make the connection more compact and reliable, and can also play a certain buffering role.

[0041] Example 2: Based on Example 1, Figure 4As shown, in the present embodiment, in order to improve the safety of the circuit board after installation, a plurality of flexible flanges 8 with raised lines are provided in the central area of ​​the main body 1. The flexible flange 8 is a strip-shaped bent protrusion formed by stamping the main body 1 from bottom to top, and has good deformation ability. The circuit board will be pressed down after installation, and its reaction force can improve the installation stability of the circuit board. In actual use, when the box body is accidentally dropped or the handling action is relatively rough, the impact force generated by the collision on the outside of the box body will be partially absorbed by its elastic deformation due to the existence of the flexible flange 8, thereby protecting the circuit board.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circuit board fixing bracket for an earphone disinfection box, characterized in that: The invention comprises a main body (1), wherein the main body (1) is a horizontal plate structure, wherein the front side of the main body (1) is bent downward to form a first locking edge (11), and extension parts (12) are provided at the left and right ends of the rear side of the main body (1), and the two extension parts (12) extend outward in the left and right directions relative to the main body (1), so that the main body (1) and the two extension parts (12) form a "T"-shaped profile on the horizontal end surface, and an edge of the outer end of each extension part (12) is provided with a first connecting piece (2) bent upward, and the first connecting piece (2) is provided with a first through hole (21), and each extension part (12) A bent portion bent forward is provided at the other edge of the outer end, and a second connecting piece (3) and a third connecting piece (4) are provided on the bent portion. The second connecting piece (3) and the third connecting piece (4) are respectively provided with a second through hole (31) and a third through hole (41) for connecting with the circuit board in cooperation with the fastener. The second through hole (31) and the third through hole (41) are staggered in the longitudinal direction and the transverse direction. A connecting portion (6) bent upward is provided at the outer free end of the bent portion. The two ends of the connecting portion (6) are respectively connected to the outer free ends of the extension portion (12) on the left and right sides of the main body (1), so as to form a three-dimensional closed loop structure.

2. The circuit board fixing bracket of the earphone disinfection box according to claim 1, characterized in that: The bending portion comprises a first bending portion (13) and a second bending portion (15) connected end to end, and the first bending portion (13) and the second bending portion (15) are perpendicular to each other.

3. The circuit board fixing bracket of the earphone disinfection box according to claim 2, characterized in that: The first bending portion (13) and the second bending portion (15) are both "L"-shaped structures. The first bending portion (13) forms a bending structure on the horizontal end surface, and the second bending portion (15) forms a bending structure on the longitudinal end surface. The first bending portion (13) and the second bending portion (15) are connected by a horizontal supporting portion (14), and the supporting portion (14) is a horizontal plate structure facing front and back.

4. The circuit board fixing bracket of the earphone disinfection box according to claim 3, characterized in that: An edge of the first bent portion (13) is provided with a second connecting piece (3) bent upward, the second through hole (31) is located on the second connecting piece (3), and the second through hole (31) vertically penetrates the second connecting piece (3); a horizontally extending third connecting piece (4) is provided on the horizontal outer edge of the supporting portion (14), the third through hole (41) is located on the third connecting piece (4), and the third through hole (41) vertically penetrates the third connecting piece (4).

5. The circuit board fixing bracket of the earphone disinfection box according to claim 3, characterized in that: A transversely extending fourth connecting piece (5) is provided on the transverse outer edge of the second bending portion (15), and a fourth through hole (51) is provided on the fourth connecting piece (5), and the fourth through hole (51) passes through the fourth connecting piece (5) horizontally from front to back.

6. The circuit board fixing bracket of the earphone disinfection box according to claim 1, characterized in that: A notch is provided on the rear side of the main body (1) between the left and right extensions (12).

7. The circuit board fixing bracket of the earphone disinfection box according to claim 1, characterized in that: The connecting portion (6) is provided with a plurality of fifth through holes (61) and hollow portions (62), and the fifth through holes (61) and hollow portions (62) penetrate the connecting portion (6) horizontally from front to back.

8. The circuit board fixing bracket of the earphone disinfection box according to claim 7, characterized in that: A second locking edge (7) extending horizontally forward is provided at the center position of the bottom edge of the connecting portion (6); the second locking edge (7) is a strip-shaped plate structure perpendicular to the connecting portion (6).

9. The circuit board fixing bracket of the earphone disinfection box according to claim 1, characterized in that: A plurality of linearly raised flexible flanges (8) are provided in the central area of ​​the main body (1).

10. The circuit board fixing bracket of the earphone disinfection box according to claim 4, characterized in that: The first through hole (21) and the second through hole (31) are countersunk through hole structures.

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