Circuit board mounting structure

Abstract

The utility model discloses a circuit board mounting structure, which is applied to a back-of-ear hearing aid and comprises a shell and a circuit board assembly. The shell comprises a first shell wall and a second shell wall, the first shell wall and the second shell wall are connected in the preset direction to form an installation cavity, and the first shell wall is in a bent shape to be attached to the ear back of a person. The circuit board assembly is arranged in the mounting cavity, the circuit board is provided with an assembling surface, the two sides of the assembling surface are provided with a first edge and a second edge respectively, the first edge and the first shell wall are designed in a profiling mode, the second edge and the second shell wall are designed in a profiling mode, and the assembling surface is configured to be provided with a plurality of electronic elements. The assembling surface is parallel to the preset direction. According to the technical scheme of the utility model, the circuit board of the back-of-ear hearing aid and the installation structure of other electronic components are provided, so that the installation mode of the electronic components is more flexible.

Description

Technical Field

[0001] The utility model relates to the field of hearing aids, and particularly to a circuit board mounting structure. Background Art

[0002] The behind-the-ear hearing aid is a hearing aid worn on the ear. Its external shape design applies ergonomics to reduce the discomfort of users wearing the hearing aid. However, due to its ergonomic design, the internal space of the entire behind-the-ear hearing aid is narrow, and the installation positions of the circuit board and other electronic components are restricted by the curved shell. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a circuit board mounting structure for use in a behind-the-ear hearing aid, aiming to provide a mounting structure for the circuit board and other electronic components of a behind-the-ear hearing aid.

[0004] To achieve the above purpose, the utility model proposes a circuit board mounting structure, which includes:

[0005] A shell, the shell includes a first shell wall and a second shell wall, the first shell wall and the second shell wall are connected along a preset direction to form a mounting cavity, and the first shell wall is in a curved shape to fit the back of a person's ear;

[0006] A circuit board assembly, the circuit board assembly is arranged in the mounting cavity, the circuit board assembly has an assembly surface, a first edge and a second edge are respectively arranged on both sides of the assembly surface, the first edge and the first shell wall are in a copycat design, the second edge and the second shell wall are in a copycat design, the assembly surface is configured to be provided with a plurality of electronic components, and the assembly surface is arranged parallel to the preset direction.

[0007] Optionally, the circuit board mounting structure further includes a mounting seat, the bottom plate of the mounting seat is in a curved shape, the mounting seat is arranged in the mounting cavity, the bottom plate abuts against the curved first shell wall, and the circuit board assembly is connected to the mounting seat.

[0008] Optionally, the shell is provided with a positioning groove, the bottom plate is connected in the positioning groove, the bottom plate is provided with positioning posts, the circuit board assembly is provided with positioning holes, and the positioning posts are configured to be inserted into the positioning holes to assemble the circuit board assembly on the bottom plate.

[0009] Optionally, the mounting seat further includes a bracket, the bracket is connected to the bottom plate, the positioning posts are connected to the bracket, the bracket and the circuit board assembly divide the mounting cavity into a first cavity and a second cavity, the first cavity is configured to install a battery, and the second cavity is configured to install a speaker and a receiver.

[0010] Optionally, the bracket includes a partition board, an enclosing board, and a connecting rod. The partition board is connected to the bottom board, the partition board is spaced from the circuit board, the enclosing board is connected to the partition board, the enclosing board, the partition board, and the bottom board enclose to form the first cavity, and the enclosing board and the housing enclose to form the second cavity. The connecting rod is disposed in the second cavity, and the connecting rod is connected to the enclosing board and the bottom board.

[0011] Optionally, the mounting seat is provided with a limiting boss, and the circuit board assembly is provided with a limiting groove. The limiting boss is configured to be inserted into the limiting groove.

[0012] Optionally, the circuit board mounting structure is further provided with a button assembly. The button assembly penetrates through the housing. One end of the button assembly extends to the outside of the housing, and the other end extends into the installation cavity. A part of the button assembly located in the installation cavity is connected to the circuit board.

[0013] Optionally, the housing is provided with a mounting hole. The button assembly includes a button seat and a button. The button seat is connected to the mounting hole. The button seat is provided with a sliding groove. The button is slidably connected to the sliding groove, and the button is electrically connected to the circuit board.

[0014] Optionally, the button assembly further includes a sealing ring. The sealing ring is disposed in the sliding groove, and the button is connected to the sealing ring.

[0015] Optionally, the circuit board mounting structure further includes an earphone. The earphone is connected to the housing, and the earphone is electrically connected to the circuit board.

[0016] The technical solution of the present utility model provides a behind-the-ear hearing aid with different installation methods for circuit boards and electronic components. Among them, one side of the housing has a shell wall arranged in a curved surface, and this shell wall partially fits the back of the human ear. So that the whole behind-the-ear hearing aid presents a curved water-drop shape structure, and its interior is an installation cavity. One side edge of the circuit board is arranged in a curved surface, so that the whole circuit board also presents a curved water-drop shape structure. Regarding the back of the ear as a curved surface, the arc direction along the back of the ear is set as the first direction, and the direction perpendicular to the back of the ear is set as the second direction. The curved shell wall of the housing and the curved edge of the circuit board both extend along the first direction, and the board surface of the circuit board is parallel to the second direction. It can be understood that such a setting enables the electronic components to be installed on the circuit board without being affected by the two side surfaces where the behind-the-ear hearing aid fits or is away from the back of the ear, making the circuit board design or the design of the installation position of the electronic components more flexible. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0018] Figure 1 Schematic diagram of the structure of a behind-the-ear hearing aid provided by an embodiment of the present invention;

[0019] Figure 2 For Figure 1 Exploded view of the behind-the-ear hearing aid shown;

[0020] Figure 3 For Figure 2 Another perspective view of the behind-the-ear hearing aid shown;

[0021] Figure 4 For Figure 1 Side view of the behind-the-ear hearing aid shown;

[0022] Figure 5 For Figure 4 Cross-sectional view of the behind-the-ear hearing aid along the section line II-II shown;

[0023] Figure 6 For Figure 4 Partial cross-sectional view of the button assembly of the behind-the-ear hearing aid shown;

[0024] Figure 7 For Figure 1 Schematic diagram of the structure of the first housing wall of the behind-the-ear hearing aid shown;

[0025] Figure 8 For Figure 7 Cross-sectional view of the first housing wall along the section line III-III shown;

[0026] Figure 9 For Figure 1 Schematic diagram of the structure of the second housing wall of the behind-the-ear hearing aid shown;

[0027] Figure 10 For Figure 9 Cross-sectional view of the second housing wall along the section line IV-IV shown;

[0028] Figure 11 For Figure 5 Enlarged view of the charging hole structure shown in part A of

[0029] Figure 12 For Figure 5 Enlarged view of the earphone hole structure shown in part B of

[0030] Figure 13 This is a schematic structural diagram of the charging terminal of the present utility model.

[0031] Explanation of the reference numerals in the drawings:

[0032]

[0033]

[0034] The realization of the purpose, functional characteristics and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments may be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0038] Please refer to Figure 1 、 Figure 2 and Figure 3, an embodiment of the present application provides a circuit board mounting structure, which is applied to a behind-the-ear hearing aid. The circuit board mounting structure includes a housing 1, a button assembly 4, and a circuit board assembly 2. The button assembly 4 and the circuit board assembly 2 are connected to the housing 1. Among them, the circuit board assembly 2 is used to process and transmit sound signals, amplify, filter, etc. the received sound to meet the hearing needs of the user, and transmit the processed signal to the relevant sound generating components. For example, when external sound enters the behind-the-ear hearing aid, the circuit board assembly 2 will analyze and optimize the sound so that the user can hear the sound more clearly. The button assembly 4 is used to control various functions of the behind-the-ear hearing aid, such as adjusting the volume, switching different sound modes, or turning on / off the behind-the-ear hearing aid. For example, the user can increase the volume by pressing the button assembly 4 to adapt to different ambient sound levels; or when quiet is needed, turn off the behind-the-ear hearing aid through the button assembly 4.

[0039] In this embodiment, the housing 1 includes a first shell wall 11 and a second shell wall 12. The first shell wall 11 is connected to the second shell wall 12 to enclose an installation cavity 13. The circuit board assembly 2 is disposed in the installation cavity 13. One end of the button assembly 4 is located in the installation cavity 13 and is connected to the circuit board assembly 2, and the other end of the button assembly 4 penetrates through the first shell wall 11 and is exposed outside. The circuit board assembly 2 has an assembly surface, and a first edge 201 and a second edge 202 are respectively provided on both sides of the assembly surface. The first edge 201 and the first shell wall 12 are in a contoured design, and the second edge 202 and the second shell wall 12 are in a contoured design. The assembly surface is configured to be provided with a plurality of electronic components, and the assembly surface is arranged parallel to a preset direction. Among them, the first edge 201 and the second edge 202 are located on opposite sides of the circuit board assembly. The first edge 201 is contoured with the inner side of the first shell wall 11, that is, the first edge 201 is curved, and the first edge 201 of the circuit board assembly 2 abuts against the inner side of the first shell wall 11. The second edge 202 of the circuit board assembly 2 is contoured with the inner side of the second shell wall 12, that is, the second edge 202 is curved, and the second edge 202 of the circuit board assembly 2 abuts against the inner side of the second shell wall 12.

[0040] In this embodiment, the housing 1 is in a water droplet shape, the first shell wall 11 protrudes outward relative to the installation cavity 13, and the second shell wall 13 is concave relative to the installation cavity 13. Correspondingly, the circuit board assembly 2 is generally in a water droplet shape, the side of the circuit board assembly 2 facing the first shell wall 11 protrudes, and the side facing the second shell wall 12 is concave. When wearing the behind-the-ear hearing aid, the first shell wall 11 abuts against the outer side of the auricle.

[0041] In this embodiment, the button assembly 4 includes two contact heads 411, and the two contact heads 411 extend into the installation cavity 13 and are connected to the contacts 21 of the circuit board assembly 2.

[0042] The circuit board mounting structure provided by the present application has a curved shell wall on one side of the housing 1, making the entire circuit board mounting structure a curved structure with an installation cavity 13 inside. The two side edges of the circuit board assembly 2 are curved, making the entire circuit board assembly 2 also a curved structure. The button assembly 4 is mounted on the curved shell wall. By arranging the circuit board assembly 2 in the installation cavity 13, the curved edges of the circuit board assembly 2 can be adapted to the curved shell wall of the housing 1, and the edges of the circuit board assembly 2 are adjacent to the shell wall. Since the first edge 201 is shaped to fit the inner side of the first shell wall 11 and the first edge 201 of the circuit board assembly 2 abuts against the inner side of the first shell wall 11, the button assembly 4 on the shell wall is adjacent to the circuit board assembly 2, facilitating the connection between the button assembly 4 and the circuit board assembly 2.

[0043] When specifically assembling a behind-the-ear hearing aid and installing the circuit board mounting structure, first install the circuit board assembly 2 on the second shell wall 12, then install the button assembly 4 on the first shell wall 11, and then connect the first shell wall 11 and the second shell wall 12 so that the contact 411 of the button assembly 4 connects to the contact 21 of the circuit board assembly 2.

[0044] Please refer to Figure 2 、 Figure 3 、 Figure 7 and Figure 8 , in this embodiment, the housing 1 is provided with an installation hole 111, and the button assembly 4 includes a button base 42 and a button 41. The button base 42 is arranged in the installation hole 111, and the button base 42 is provided with a sliding groove 421. The button 41 is slidably connected to the sliding groove 421, and the button 41 is connected to the circuit board assembly 2.

[0045] Specifically, on the side of the first shell wall 11 facing away from the second shell wall 12, that is, on the side of the shell wall installed on the protrusion, there is an installation hole 111, and the installation hole 111 communicates with the installation cavity 13. The button base 42 is a groove-shaped structure. The button base 42 is in the installation cavity 13 and is connected to the first shell wall 11, so that the installation hole 111 communicates with the sliding groove 421. The button 41 is slidably connected in the sliding groove 421. The bottom of the button base 42 is provided with an opening through which the contact 411 of the button 41 can extend into the installation cavity 13. The contact 411 passes through the opening and connects to the contact 21 of the circuit board assembly 2.

[0046] In this embodiment, the sliding groove 421 defines the stroke of the button 41. After moving a certain distance, the button 41 abuts against the inner wall of the housing 1 or the bottom wall of the button base 42 to prevent the button 41 from falling out of the sliding groove 321.

[0047] When assembling the button assembly 4, first install the button 41 in the sliding groove 421 which plays a role in limiting, and then connect the button seat 42 to the first housing wall 11, then the installation of the button assembly 4 can be completed, which facilitates the docking of the button assembly 4 and the circuit board assembly 2.

[0048] Please refer to Figure 2 、 Figure 7 and Figure 8 In this embodiment, the button assembly 4 further includes a sealing ring 43. The sealing ring 43 is installed at the sliding groove 421, and the button 41 is connected to the sealing ring 43. The button 41 and the button seat 42 clamp the sealing ring 43, and the elastic potential energy of the sealing ring 43 makes the button 41 keep the tendency of abutting against the housing 1. In this way, both the sealing performance of the button assembly 4 is ensured, so that moisture will not enter the installation cavity 13 from the button assembly 4, and the button 41 has a certain elasticity, improving the touch feeling when the user presses the button 41.

[0049] Refer to Figure 1 、 Figure 4 、 Figure 5 and Figure 6 In an embodiment provided by the present utility model, the circuit board mounting structure includes a housing 1 and a circuit board assembly 2. One side wall of the housing 1 is curved and is used to fit the outer auricle of a person. The housing 1 is also provided with an installation cavity 13. The circuit board assembly 2 is disposed in the installation cavity 13. One side edge of the circuit board assembly 2 is curved. When the circuit board assembly 2 is installed in the installation cavity 13, the curved edge of the circuit board assembly 2 abuts against the curved side wall.

[0050] Specifically, the housing 1 has a curved structure, so that among the two side walls of the housing 1, one side is a concave curve and the other side is a convex curve. When the user wears the circuit board mounting structure, the concave curved side fits the back of the ear. The inside of the housing 1 is the installation cavity 13. Regarding the back of the ear as a curve, the direction along the arc of the back of the ear is defined as the first direction 101, and the direction perpendicular to the back of the ear is defined as the second direction 102. The structure of the circuit board assembly 2 is also curved, so that the two side edges of the circuit board assembly 2, the second edge 202 is a concave curve and the first edge 201 is a convex curve. The two side curves of the circuit board assembly 2 and the two side walls of the housing 1 are correspondingly abutted, so that the circuit board assembly 2 is embedded in the housing 1 and then installed in the installation cavity 13.

[0051] Furthermore, the housing 1 is divided into a first housing wall 11 and a second housing wall 12. The first housing wall 11 has a protruding curve, and the second housing wall 12 has a concave curve. The first housing wall 11 and the second housing wall 12 enclose to form the installation cavity 13. The circuit board assembly 2 is first installed at the second housing wall 12, and then the first housing wall 11 is installed, so that the first housing wall 11 and the second housing wall 12 clamp and fix the circuit board assembly 2.

[0052] According to this embodiment, a circuit board assembly 2 and a circuit board mounting structure for mounting electronic components are provided. One side of the housing 1 has a curved shell wall, and a part of this shell wall fits against the back of a person's ear, that is, the outer ear. Thus, the entire circuit board mounting structure is in a curved shape, and its interior is an installation cavity 13. One side edge of the circuit board assembly 2 is curved, so that the entire circuit board assembly 2 is also in a curved shape. Regarding the back of the ear as curved, let the arc direction along the back of the ear be the first direction 101, and the direction perpendicular to the first direction 101 be the second direction 102. The curved shell wall of the housing 1 and the curved edge of the circuit board assembly 2 both extend along the first direction 101, and the surface of the circuit board assembly 2 for mounting electronic components is parallel to the second direction 102. It can be understood that such a setting ensures that when electronic components are mounted on the circuit board assembly 2, they will not be affected by the two side surfaces where the circuit board mounting structure fits against or is away from the back of the ear, enabling more flexible design of the circuit board assembly 2 or the mounting positions of electronic components.

[0053] Please refer to Figure 2 and Figure 3 , in this embodiment, the circuit board assembly 2 includes a mounting base 3 and the circuit board assembly 2. The mounting base 3 includes a bottom plate 31. The circuit board assembly 2 is disposed on the bottom plate 31. The mounting base 3 is disposed in the installation cavity 13. A second edge 202 is provided on one side of the bottom plate 31 facing the second shell wall 12. Among them, one side of the bottom plate 31 facing the installation space 35 is a plane, which is conducive to adapting to the periphery of the circuit board and improving the installation accuracy and efficiency of the circuit board assembly 2.

[0054] Refer to Figure 2 , Figure 3 , Figure 9 and Figure 10 , in this embodiment, the housing 1 is provided with a positioning groove 121, the bottom plate 31 is connected in the positioning groove 121, the bottom plate 31 is provided with a positioning post 33, the positioning post 33 extends substantially parallel to the bottom plate 31, and the circuit board assembly 2 is provided with a positioning hole 22. The circuit board assembly 2 is mounted on the bottom plate 31 through the positioning post 33 and the positioning hole 22.

[0055] Specifically, at the bottom of the housing 1, that is, the second shell wall 12 is a concave curved shell wall, and it is convex on the side facing the installation cavity 13. A part is cut off to form a positioning groove 121 enclosed by two parallel side surfaces and a plane. The distance between the two parallel side surfaces is the width of the mounting base 3. Due to having a plane and two parallel side surfaces, the mounting base 3 can slide in the positioning groove 121, facilitating the mounting base 3 to find and fix the position.

[0056] In this embodiment, the bottom plate 31 is further connected with positioning posts 33, and the circuit board assembly 2 is provided with positioning holes 22. The positioning holes 22 of the circuit board assembly 2 can be stuck on the positioning posts 33 to achieve fixation. Through various positioning structures such as the positioning groove 121, the positioning posts 33, and the positioning holes 22, the circuit board assembly 2 can be accurately installed on the mounting base 3, and the mounting base 3 can be accurately installed on the housing 1.

[0057] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 , in this embodiment, the mounting base 3 is further provided with a bracket 32. The bracket 32 is connected to the bottom plate 31, the positioning posts 33 are connected to the bracket 32. The bracket 32 and the circuit board assembly 2 divide the installation cavity 13 into a first cavity 131 and a second cavity 132. The first cavity 131 is used for installing the battery, and the second cavity 132 is used for installing the speaker and the receiver. After the circuit board assembly 2 is installed on the mounting base 3 and then the mounting base 3 is installed in the installation cavity 13, the bracket 32 divides the installation cavity 13 into the first cavity 131 and the second cavity 132. The battery is installed in the first cavity 131, and the speaker and the receiver are installed in the second cavity 132. Separating the battery can play a role in protecting the battery. The bracket 32 and the housing 1 enclose to form the second cavity 132. And due to the different installation methods of the circuit board assembly 2, the positions for installing the receiver and the speaker are no longer restricted by the curved housing 1, and with a certain space, the sound receiving effect can be better.

[0058] Refer to Figure 3 , Figure 4 and Figure 5 , the present utility model provides an embodiment. The bracket 32 includes a partition plate 321, a surrounding plate 322, and a connecting rod 323. The partition plate 321 is connected to the bottom plate 31, and the partition plate 321 is spaced from the circuit board assembly 2. The surrounding plate 322 is connected to the partition plate 321. The surrounding plate 322, the partition plate 321, and the bottom plate 31 enclose to form the first cavity 131, and the surrounding plate 322 and the housing 1 enclose to form the second cavity 132. The connecting rod 323 is arranged in the second cavity 132, and the connecting rod 323 is connected to the surrounding plate 322 and the bottom plate 31.

[0059] Specifically, the partition plate 321 is connected to one side of the bottom plate 31, and is spaced and arranged in parallel with the circuit board assembly 2. One side of the surrounding plate 322 is connected to the edge of the partition plate 321, and positioning posts 33 are provided on the other side of the surrounding plate 322. The circuit board assembly 2 is installed on the positioning posts 33 through the positioning holes 22. The surrounding plate 322, the partition plate 321 and the bottom plate 31 enclose a first cavity 131, and the shape of the first cavity 131 is adapted to the outer shape of the battery. And the other space outside the first cavity 131 is the second cavity 132. One end of the connecting rod 323 is connected to the side of the bottom plate 31 away from the surrounding plate 322, and the other end is connected to the surrounding plate 322. Positioning rods are arranged at intervals on the connecting rod 323. Different structures protect both the circuit board and the battery, and can also improve the structural strength of the entire mounting rack.

[0060] An embodiment of the present utility model provides that the mounting seat 3 is provided with a limiting boss, and the circuit board assembly 2 is provided with a limiting groove, and the circuit board assembly 2 is limited on the mounting seat 3 through the limiting boss and the limiting groove.

[0061] Specifically, the bottom plate 31 is provided with a limiting protrusion, the limiting protrusion extends along a certain direction, and a limiting groove is provided at the edge of the circuit board assembly 2. The limiting groove of the circuit board assembly 2 can slide when it is stuck on the limiting protrusion.

[0062] When specifically installing the circuit board assembly 2, first limit the circuit board assembly 2 through the limiting groove and the limiting protrusion. At this time, the positioning hole 22 of the circuit board assembly 2 is aligned with the positioning post 33 of the mounting seat 3, and then sliding the circuit board assembly 2 can install the circuit board assembly 2 on the positioning post 33 through the positioning hole 22.

[0063] An embodiment of the present utility model provides that the circuit board mounting structure further includes an earphone, the earphone is connected to the housing 1, and the earphone is electrically connected to the circuit board assembly 2.

[0064] Please refer to Figure 1 and Figure 2 As shown in, an embodiment of the present application provides a circuit board mounting structure. The circuit board mounting structure includes a housing 1, a button assembly 4 and a sealing assembly. The housing 1 includes a first shell wall 11 and a second shell wall 12. The first shell wall 11 and the second shell wall 12 enclose an installation cavity 13. The first shell wall 11 is provided with an installation hole 111 and a sound receiving hole 112 communicating with the installation cavity 13. The button assembly 4 passes through the installation hole 111. The sealing assembly includes a first sealing member 43, a second sealing member and a waterproof net. The first sealing member 43 seals the gap between the button 41 structure and the installation hole 111. The second sealing member seals the gap between the first shell wall 11 and the second shell wall 12. The waterproof net covers the sound receiving hole 112.

[0065] In this embodiment, the housing 1 includes a first housing wall 11 and a second housing wall 12. The first housing wall 11 is connected to the second housing wall 12 to enclose an installation cavity 13. The first housing wall 11 is provided with an installation hole 111. When the button assembly 4 is installed in the installation hole 111, one side of the button assembly 4 is located outside the first housing wall 11, and the other side is located inside the installation cavity 13. There is a gap between the hole wall of the installation hole 111 and the button assembly 4 for the movement of the button assembly 4. The first seal 43 is made of materials such as silica gel, rubber, and adhesive, and is provided between the hole wall of the installation hole 111 and the button assembly 4, so that the gap is blocked by the first seal 43, and thus no gap will appear when the button 41 moves and makes a relative displacement with the first housing wall 11. The waterproof net is a metal net with a large hole density. The waterproof net is connected to the inner wall of the first housing wall 11 and covers the sound receiving hole 112. The waterproof net enables sound to be transmitted into the installation cavity 13 through vibration, but it is difficult for water to enter the installation cavity 13 from the waterproof net. Both the first housing wall 11 and the second housing wall 12 are in a cover-like structure. The edges of the two cover-like structures are connected together to enclose a hollow housing 1, and a second seal is provided at the connected edge to block the gap between the connection of the first housing wall 11 and the second housing wall 12.

[0066] The housing 1 is composed of a first housing wall 11 and a second housing wall 12, and an installation cavity 13 is enclosed between the first housing wall 11 and the second housing wall 12. The button assembly 4 is installed on the installation hole 111 of the first housing wall 11, and the first housing wall 11 is also provided with a sound receiving hole 112, and the sound receiving hole 112 can collect the sound transmitted to the surrounding of the circuit board installation structure. It can be understood that when the first housing wall 11 and the second housing wall 12 are installed together, there is a gap between them. And as a movable structure, the relative movement between the button 41 and the first housing wall 11 will also generate a gap. The present application is also provided with a sealing assembly, and the sealing assembly includes a first seal 43, a second seal, and a waterproof net. The first seal 43 blocks the gap between the button 41 structure and the installation hole 111, the second seal blocks the gap between the first housing wall 11 and the second housing wall 12, and the waterproof net covers the sound receiving hole 112. Through this solution, the installation cavity 13 is in a closed space, which can improve the waterproof performance of the circuit board installation structure.

[0067] Please refer to Figure 1 and Figure 2 As shown in, an embodiment of the present application provides a circuit board installation structure. The second housing wall 12 is provided with a sealing groove 124, and a sealing cavity is formed by enclosing the first housing 1 and the sealing groove 124, and the second seal is provided in the sealing groove 124.

[0068] In this embodiment, a boss is provided on the edge surface of the second housing wall 12. A sealing groove 124 is provided on the outer side of the boss. The sealing groove 124 is used to accommodate the second seal. It can be understood that the second seal is connected in the sealing groove 124 to form an annular shape. The second seal can be made of silica gel or rubber, or can be a viscous colloid. When the first housing wall 11 and the second housing wall 12 are connected, the first housing wall 11 is buckled on the boss, so that the first housing wall 11 fits onto the surface of the boss where the sealing groove 124 is provided, so that the sealing groove 124 forms a sealing cavity, and the second seal is arranged in the sealing cavity to block the gap between the first housing wall 11 and the second housing wall 12.

[0069] By providing the sealing groove 124 on the second housing wall 12, the sealing groove 124 can be used to fix the second seal, or give a reference position for the caulking process, and provide a space for the silica gel to be accommodated. Then the first housing wall 11 and the second housing wall 12 are connected. The first housing wall 11 and the second housing wall 12 clamp the second seal, so that the gap between the first housing wall 11 and the second housing wall 12 is filled with the second seal.

[0070] Please refer to Figure 1 、 Figure 2 、 Figure 11 and Figure 13 As shown in

[0071] In this embodiment, the second housing wall 12 is provided with a charging hole 122. The charging hole 122 includes three round holes. The charging terminal 5 is provided with three pin pins 51, and the three pin pins 51 are connected to the terminal block 52. One pin pin 51 corresponds to one round hole. When the circuit board assembly 2 is installed in the installation cavity 13, the base of the circuit board assembly 2 is installed in the second housing wall 12 and the surrounding plate 322 of the circuit board has an abutting surface 301. The abutting surface 301 abuts against the terminal block 52, that is, the abutting surface 301 and the inner wall of the second housing wall 12 clamp the electronic seat of the charging terminal 5 to fix the charging terminal 5. The third seal can be silica gel or rubber, or can be a viscous or flowing colloid.

[0072] When installing the charging terminal 5, first insert the pin 51 outward from the installation cavity 13 into the charging hole 122, and then install the circuit board assembly 2. At this time, the pin 51 passes through the charging hole 122 and there is a gap between the pin 51 and the charging hole 122, while the terminal seat 52 of the charging terminal 5 is located in the installation cavity 13 and is electrically connected to the circuit board assembly 2, and is clamped by the inner wall of the second housing wall 12 and the abutting surface 301. A third sealing member is provided between the abutting surface 301 and the terminal seat 52. The third sealing member seals the gap between the charging terminal 5 and the charging hole 122 by gluing, and the third sealing member is also connected to the abutting surface 301 of the base, so that the second housing wall 12 and the base clamp the third sealing member, making the sealing effect of the third sealing member better, improving the waterproof effect, and the viscosity of the third sealing member can also fix the main circuit board assembly 2.

[0073] Please refer to Figure 1 、 Figure 2 and Figure 12 , an embodiment of the present application provides a circuit board mounting structure. The housing 1 is provided with a headphone jack 123. The circuit board mounting structure further includes a headphone terminal 6 and a fourth sealing member. The headphone terminal 6 passes through the headphone jack 123, and the fourth sealing member seals the gap between the headphone terminal 6 and the headphone jack 123.

[0074] In this embodiment, a headphone jack 123 is provided on the sides of the first housing wall 11 and the second housing wall 12 away from the charging hole 122, that is, both the first housing wall 11 and the second housing wall 12 are provided with a semicircular hole, and the two are combined to form a headphone jack 123. The headphone terminal 6 is provided with a fixing post 61, and the fixing post 61 is provided with a slot 62. The first housing wall 11 is provided with a plug 113. When installing the headphone terminal 6, the plug 113 is inserted into the slot 62, and the fixing post 61 is inserted into the headphone jack 123 and is electrically connected to the circuit board assembly 2. The fourth sealing member is arranged around the columnar structure, so that the fourth sealing member is clamped between the headphone terminal 6 and the headphone jack 123 to seal the gap therebetween.

[0075] Furthermore, the fourth sealing member can be made of silicone or rubber, or can be a viscous colloid. When the fourth sealing member is a sealing ring, the fourth sealing member is arranged in the housing 1, and the headphone terminal 6 can be detachably connected to the headphone jack 123, so that the headphone can be replaced. The fourth sealing member seals the gap between the headphone terminal 6 and the headphone jack 123, improving the waterproof effect.

[0076] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A circuit board mounting structure, applied to a behind-the-ear hearing aid, characterized in that The circuit board mounting structure includes: A housing, the housing includes a first shell wall and a second shell wall, the first shell wall and the second shell wall are connected along a preset direction to form a mounting cavity, and the first shell wall is in a curved shape to fit the back of a person's ear; A circuit board assembly, the circuit board assembly is disposed in the mounting cavity, the circuit board assembly has an assembly surface, a first edge and a second edge are respectively disposed on both sides of the assembly surface, the first edge and the first shell wall are in a profiling design, the second edge and the second shell wall are in a profiling design, the assembly surface is configured to be provided with a plurality of electronic components, and the assembly surface is arranged parallel to the preset direction.

2. The circuit board mounting structure according to claim 1, characterized in that, The circuit board mounting structure further includes a mounting base, the bottom plate of the mounting base is in a curved shape, the mounting base is disposed in the mounting cavity, the bottom plate abuts against the curved first shell wall, and the circuit board assembly is connected to the mounting base.

3. The circuit board mounting structure according to claim 2, characterized in that, The housing is provided with a positioning groove, the bottom plate is connected in the positioning groove, the bottom plate is provided with a positioning post, the circuit board assembly is provided with a positioning hole, and the positioning post is configured to be inserted into the positioning hole to assemble the circuit board assembly on the bottom plate.

4. The circuit board mounting structure according to claim 3, characterized in that, The mounting base is further provided with a bracket, the bracket is connected to the bottom plate, the positioning post is connected to the bracket, and the bracket and the circuit board assembly divide the mounting cavity into a first cavity and a second cavity, the first cavity is configured to mount a battery, and the second cavity is configured to mount a speaker and a receiver.

5. The circuit board mounting structure according to claim 4, characterized in that, The bracket includes a partition plate, a surrounding plate and a connecting rod, the partition plate is connected to the bottom plate, the partition plate is spaced from the circuit board, the surrounding plate is connected to the partition plate, the surrounding plate, the partition plate and the bottom plate enclose the first cavity, and the surrounding plate and the housing enclose the second cavity, the connecting rod is disposed in the second cavity, and the connecting rod is connected to the surrounding plate and the bottom plate.

6. The circuit board mounting structure according to claim 2, characterized in that, The mounting base is provided with a limiting boss, the circuit board assembly is provided with a limiting groove, and the limiting boss is configured to be inserted into the limiting groove.

7. The circuit board mounting structure according to claim 1, wherein, The circuit board mounting structure is further provided with a button assembly, the button assembly penetrates through the housing, one end of the button assembly extends to the outside of the housing, and the other end extends into the mounting cavity, and a part of the button assembly located in the mounting cavity is connected to the circuit board.

8. The circuit board mounting structure according to claim 7, characterized in that, The housing is provided with a mounting hole, the button assembly includes a button seat and a button, the button seat is connected to the mounting hole, the button seat is provided with a sliding groove, the button is slidably connected to the sliding groove, and the button is electrically connected to the circuit board.

9. The circuit board mounting structure according to claim 8, wherein, The button assembly further includes a sealing ring, the sealing ring is disposed in the sliding groove, and the button is connected to the sealing ring.

10. The circuit board mounting structure according to claim 1, characterized in that, The circuit board mounting structure further includes an earphone, the earphone is connected to the housing, and the earphone is electrically connected to the circuit board.

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