Mounting box assembly, earphone and earphone system

Abstract

The utility model discloses a mounting box assembly, an earphone and an earphone system. The mounting box assembly comprises a mounting box, a circuit board, a power connection terminal and an elastic electric connector. And the mounting box is provided with a preformed hole. The circuit board is accommodated in the mounting box. The power connection terminals are installed in the preformed holes. And the elastic electric connecting piece is arranged on the circuit board and is electrically connected with the power connection terminal. The elastic electric connecting piece is installed on the circuit board and electrically connected with the power connection terminal, the elastic electric connecting piece can adapt to different installation distances between the power connection terminal and the circuit board through elastic deformation, and therefore stable electric connection between the power connection terminal and the circuit board is kept. In addition, the use of the elastic electric connector can avoid the use of SMT technology to connect the power connection terminal and the circuit board, thereby saving the cost.

Description

Technical Field

[0001] This application relates to the field of headphone technology, and more specifically, to a mounting box assembly, headphones, and headphone system. Background Technology

[0002] Currently, headphone charging methods include charging via charging case and charging via charging cable. When charging headphones via charging case, metal pogo pins are generally used as power terminals. The headphone's power terminals are typically soldered to the circuit board inside the headphone case using surface mount technology (SMT) to form a connection.

[0003] However, due to the small size of the spring pin, it is easy to produce poor soldering when using the SMT process, which can cause open circuits or unstable connections at the power terminals. Utility Model Content

[0004] This application provides a mounting box assembly, an earphone, and an earphone system.

[0005] This application provides a mounting box assembly. The mounting box assembly includes a mounting box, a circuit board, electrical terminals, and a flexible electrical connector. The mounting box has a pre-drilled hole. The circuit board is housed within the mounting box. The electrical terminals are installed within the pre-drilled hole. The flexible electrical connector is mounted on the circuit board and is electrically connected to the electrical terminals.

[0006] In some embodiments, the flexible electrical connector includes a conductive body and a conductive spring. The conductive body is mounted on the circuit board, and the conductive spring is disposed on the conductive body and abuts against the engaging portion of the electrical terminal.

[0007] In some embodiments, the conductive spring extends from the conductive body away from the circuit board and then bends back towards the circuit board to form a protrusion, which abuts against the engaging portion of the electrical terminal.

[0008] In some embodiments, the conductive spring extends from the conductive body away from the circuit board and then bends back towards the circuit board to form a protrusion, which abuts against the engaging portion of the electrical terminal.

[0009] In some embodiments, there are multiple electrical terminals and multiple flexible electrical connectors, and at least two of the electrical terminals are at different heights from the circuit board so that the outer surfaces of the multiple electrical terminals are flush.

[0010] In some embodiments, the mounting box assembly also includes a seal. The seal is located between the inner wall of the pre-drilled hole and the outer wall of the electrical terminal, and is fitted onto the outer wall of the electrical terminal. The seal is used to seal the gap between the inner wall of the pre-drilled hole and the outer wall of the electrical terminal.

[0011] In some embodiments, the electrical terminal and the inner wall of the reserved hole together form a deformation space, which is used to accommodate the seal and the inner wall of the reserved hole to form at least three sealing surfaces.

[0012] In some embodiments, the inner wall of the reserved hole is provided with a first groove; and / or, the power terminal includes a body portion, and the outer side of the body portion is provided with a second groove; the deformation space includes the first groove and / or the second groove.

[0013] In some embodiments, in the mounting direction where the power terminal is inserted into the reserved hole, the reserved hole includes a first sub-hole, a second sub-hole, a third sub-hole, and a fourth sub-hole connected sequentially. The first sub-hole is located near the outer side of the mounting box, and the fourth sub-hole is located near the inner side of the mounting box. The power terminal includes a body portion, a locking portion, and a connecting portion. The connecting portion and the locking portion are located at opposite ends of the body portion, and the connecting portion is accommodated in the first sub-hole and the second sub-hole. The body portion includes a first sub-portion and a second sub-portion connected to each other. The first sub-portion is connected to the connecting portion, and the second sub-portion is connected to the locking portion. The first sub-portion is accommodated in the third sub-hole and forms the deformation space between itself and the inner sidewall of the third sub-hole. The second sub-portion is at least accommodated in the fourth sub-hole.

[0014] In some embodiments, the diameter of the first sub-part is the same as the diameter of the second sub-part.

[0015] In some embodiments, the diameter of the first sub-part is smaller than the diameter of the second sub-part.

[0016] In some embodiments, the fourth sub-hole is interference-fitted with the second sub-part.

[0017] In some embodiments, the power terminal further includes a protrusion that is circumferentially disposed along the outer sidewall of the body portion. The protrusion and the body portion are integrally formed, and the protrusion is interference-fitted with the inner sidewall of the reserved hole.

[0018] In some embodiments, the power terminal includes a body portion and a locking portion located at one end of the body portion. In the installation direction in which the power terminal is inserted into the reserved hole, the inner wall of the reserved hole includes a guide portion. The longitudinal section of the guide portion is a trapezoid with a larger upper section and a smaller lower section. The longitudinal section of the locking portion is a trapezoid with a larger upper section and a smaller lower section. The locking portion cooperates with the guide portion.

[0019] In some embodiments, in the installation direction, the reserved hole includes a first sub-hole, a second sub-hole, a third sub-hole, and a fourth sub-hole connected in sequence, the first sub-hole being close to the outer side of the mounting box, the fourth sub-hole being close to the inner side of the mounting box, and the guide portion being the inner sidewall of the second sub-hole.

[0020] In some embodiments, the power terminal includes a body portion and a locking portion located at one end of the body portion, the power terminal extending into the mounting box from the reserved hole, and the locking portion engaging with the inner side of the mounting box.

[0021] This application also provides an earphone. The earphone includes the mounting box assembly described in any of the above embodiments.

[0022] In some embodiments, the headphones include air-conduction headphones and bone-conduction headphones.

[0023] This application also provides an earphone system. The earphone system includes the earphones and charging case described in any of the above embodiments. The charging case is used to charge the earphones.

[0024] The mounting box assembly, earphone, and earphone system provided in this application feature a flexible electrical connector mounted on a circuit board and electrically connected to a power terminal. The flexible electrical connector can adapt to different mounting distances between the power terminal and the circuit board through elastic deformation, thereby maintaining a stable electrical connection between the power terminal and the circuit board. Furthermore, using a flexible electrical connector avoids the need for SMT (Surface Mount Technology) processes to connect the power terminal and the circuit board, saving costs.

[0025] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0027] Figure 1 This is a perspective view of a headphone system according to some embodiments of this application;

[0028] Figure 2This is a perspective assembly diagram of the mounting box assembly according to some embodiments of this application;

[0029] Figure 3 yes Figure 2 An exploded perspective view of the mounting box assembly shown.

[0030] Figure 4 yes Figure 2 A cross-sectional view of the mounting box assembly shown;

[0031] Figure 5 yes Figure 4 An enlarged schematic diagram of point IV of the mounting box assembly shown;

[0032] Figure 6 This is a perspective view of the electrical terminals of the mounting box assembly according to some embodiments of this application;

[0033] Figure 7 This is a perspective view of the electrical terminals of the mounting box assembly according to other embodiments of this application.

[0034] Description of main component symbols:

[0035] Headphone system 10000; Headphones 1000; Charging case 3000; Mounting box assembly 100; Mounting box 10; Reserved hole 11; Inner side wall 110; Guide part 1101; First sub-hole 111; Second sub-hole 112; Third sub-hole 113; Fourth sub-hole 114; First groove 115; Outer side 103; Inner side 105; Circuit board 20; Power terminal 30; Outer side wall 301; Outer side 303; Body part 31; Second groove 311; First sub-part 313; Second sub-part 315; Engaging part 33; Connecting part 35; Protrusion 37; Elastic electrical connector 40; Conductive body 41; Conductive spring 43; Protrusion 431; Sealing member 50; Deformation space 70. Detailed Implementation

[0036] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0037] In the description of this application, it should be understood that the terms "thickness," "upper," "top," "bottom," "inner," "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly. In one example, they can be a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection, an electrical connection, or a connection that allows communication between them; they can be a direct connection or an indirect connection through an intermediate medium; they can be the internal connection of two elements or the interaction between two elements.

[0039] In embodiments of this application, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Please see Figures 1 to 3 This application provides a mounting box assembly 100. The mounting box assembly 100 includes a mounting box 10, a circuit board 20, electrical terminals 30, and a flexible electrical connector 40. The mounting box 10 has a pre-drilled hole 11, the circuit board 20 is housed within the mounting box 10, and the electrical terminals 30 are installed within the pre-drilled hole 11. The flexible electrical connector 40 is mounted on the circuit board 20 and is electrically connected to the electrical terminals 30.

[0041] Specifically, the mounting box 10 is a housing for accommodating and protecting electrical components, including but not limited to the battery box and function box of the earphone 1000. The materials of the mounting box 10 include but are not limited to polypropylene (PP), acrylonitrile butadiene styrene (ABS), and polybutylene terephthalate (PBT).

[0042] The mounting box 10 is provided with a reserved hole 11, which connects the interior and exterior of the mounting box 10. The cross-sectional shape of the reserved hole 11 can be circular, elliptical, triangular, quadrilateral, or other polygonal, etc., and is not limited here. In one example, the number of reserved holes 11 can be one, and all electrical terminals 30 are installed in the reserved hole 11. In another example, the number of reserved holes 11 can be at least two, in which case one electrical terminal 30 is installed in each reserved hole 11, thereby increasing the density of electrical terminals 30 and improving the electrical connection stability of the mounting box assembly 100. In other embodiments, the reserved hole 11 can also be used to install components such as indicator lights and buttons.

[0043] Electrical terminals 30 are installed within pre-drilled holes 11 to enable electrical connection between components inside and outside the mounting box 10. The installation direction S of the electrical terminals within the pre-drilled holes is from the outer surface 103 of the mounting box 10 to the inner surface 105 of the mounting box 10. There may be one or more electrical terminals 30; in this application, there are four electrical terminals 30. In other embodiments of this application, the number of electrical terminals 30 may be any other number. The material of the electrical terminals 30 may be conductive materials such as copper, aluminum alloy, or nickel. When there are multiple electrical terminals 30, the materials of the multiple electrical terminals 30 may be different.

[0044] The flexible electrical connector 40 connects the power terminal 30 to the circuit board 20. There can be one or more flexible electrical connectors 40. One flexible electrical connector 40 can correspond to multiple power terminals 30, or one flexible electrical connector 40 can correspond to one power terminal 30, or multiple flexible electrical connectors 40 can correspond to one power terminal 30. In the embodiment of the application, one flexible electrical connector 40 corresponds to one power terminal 30. The material of the flexible electrical connector 40 includes, but is not limited to, copper, aluminum, or nickel. The flexible electrical connector 40 has a certain elastic deformation capability and can elastically deform in the installation direction S, thereby better connecting the power terminal 30 and the circuit board 20. When the power terminal 30 is installed into the reserved hole 111, the power terminal 30 applies a force in the installation direction S to the flexible electrical connector 40. The flexible electrical connector 40 can elastically deform according to the insertion depth of the power terminal 30 in the installation direction S (i.e., the distance between the power terminal 30 and the circuit board 20), thereby allowing the flexible electrical connector 40 to better fit with the power terminal 30. That is, the elastic electrical connector 40 can adjust its elastic deformation according to the distance between the power terminal 30 and the circuit board 20, thereby ensuring the stability of the electrical connection between the power terminal 30 and the circuit board 20.

[0045] After the power terminal 30 is installed into the pre-drilled hole 111, if the power terminal 30 is subjected to a force in the installation direction S and moves towards the circuit board 20, the elastic electrical connector 40 can provide an opposite force and isolate the power terminal 30 and the circuit board 20, preventing the power terminal 30 from directly pressing the circuit board 20 and causing damage to the circuit board 20. After the power terminal 30 is installed into the pre-drilled hole 111, if the power terminal 30 is subjected to a force opposite to the installation direction S, causing the distance between the power terminal 30 and the circuit board 20 in the installation direction S to increase, the elastic electrical connector 40 can recover some of its elastic deformation and continue to maintain an electrical connection with the power terminal 30, thereby ensuring the stability of the electrical connection between the power terminal 30 and the circuit board 20.

[0046] The flexible electrical connector 40 is mounted on the circuit board 20 and electrically connected to the power terminal 30. The flexible electrical connector 40 can adapt to different distances between the power terminal 30 and the circuit board 20 through elastic deformation, thereby maintaining a stable electrical connection between the power terminal 30 and the circuit board 20. Furthermore, using the flexible electrical connector 40 avoids the need for SMT (Surface Mount Technology) processes to connect the power terminal 30 and the circuit board 20, saving costs.

[0047] Please see Figure 4 and Figure 5 In some embodiments, the flexible electrical connector 40 includes a conductive body 41 and a conductive spring 43. The conductive body 41 is mounted on the circuit board 20, and the conductive spring 43 is disposed on the conductive body 41 and abuts against the engaging portion 33 of the power terminal 30.

[0048] Specifically, the conductive spring 43 has a certain elastic deformation capability, and can elastically deform in the installation direction S, thereby better contacting the engaging part 33, and thus better connecting the electrical terminal 30 and the circuit board 20. The conductive body 41 is installed on the circuit board 20, which can ensure a stable connection between the elastic electrical connector 40 and the circuit board 20, making it difficult for the elastic electrical connector 40 to fall off the circuit board 20.

[0049] Please continue reading. Figure 4 and Figure 5 In some embodiments, the conductive spring 43 extends from the conductive body 41 away from the circuit board 20 and then bends back towards the circuit board 20 to form a protrusion 431, which abuts against the engaging portion 33 of the power terminal 30.

[0050] Specifically, in the embodiments of this application, the conductive body 41 and the conductive spring 43 are an integral structure, that is, the conductive body 41 and the conductive spring 43 are a single unit. This improves the bonding strength between the conductive body 41 and the conductive spring 43, preventing separation of the conductive body 41 and the conductive spring 43 during the operation of the elastic electrical connector 40, thereby ensuring the stability and reliability of the elastic electrical connector 40. In other embodiments, the conductive body 41 and the conductive spring 43 are separate structures, that is, the conductive body 41 and the conductive spring 43 are two different structures. In one example, the conductive body 41 and the conductive spring 43 can be joined together by a detachable connection method, including but not limited to snap-fit ​​connections or threaded connections. In another example, the conductive body 41 and the conductive spring 43 can be joined together by a non-detachable connection method, including but not limited to bonding or welding. The conductive spring 43 abuts against the engaging portion 33 of the electrical terminal 30 and has a certain elasticity. That is, the conductive spring 43 can elastically deform in the installation direction S to change its relative position with the engaging portion 33, so as to adapt to the engaging portion 33 with a different relative position than the conductive spring 43, ensuring the electrical connection with the electrical terminal 30, thereby making the connection between the elastic electrical connector 40 and the electrical terminal 30 more stable.

[0051] Please continue reading. Figure 4 and Figure 5 In some embodiments, there are multiple electrical terminals 30 and multiple flexible electrical connectors 40. At least two flexible electrical connectors 40 have different contact positions with the corresponding electrical terminals 30 at different heights relative to the circuit board 20, so that the outer surfaces 303 of the multiple electrical terminals 30 are flush.

[0052] Specifically, in some embodiments, the outer surface 103 of the mounting box 10 is curved, that is, the outer surface 103 of the mounting box 10 is not planar, which allows the outer surface 103 of the mounting box 10 to adapt to different environments, such as being able to fit charging boxes 3000 with different shapes and contours. The outer surfaces 303 of the plurality of power terminals 30 are flush with each other, which can provide good electrical connection with the charging terminals (not shown) on the charging box 3000. Furthermore, the distance between the outer surfaces 303 of the plurality of power terminals 30 and the outer surface 103 of the mounting box 10 is the same, which can make the outer surface 103 of the mounting box 10 flat and prevent the power terminals 30 from protruding and getting bumped.

[0053] Please see Figure 3 and Figure 4 In some embodiments, the sealing member 50 is located between the inner sidewall 110 of the reserved hole 11 and the outer sidewall 301 of the power terminal 30, and is sleeved on the outer sidewall 301 of the power terminal 30. The sealing member 50 is used to seal the gap between the inner sidewall 110 of the reserved hole 11 and the outer sidewall 301 of the power terminal 30.

[0054] It is understood that in some embodiments, there is a certain difference between the size of the reserved hole 11 and the size of the power terminal 30, which serves as a reserved size for installation, so that the power terminal 30 can be installed in the reserved hole 11. Therefore, after the power terminal 30 is installed in the reserved hole 11, there is a certain gap between the inner wall 110 of the reserved hole 11 and the outer wall 301 of the power terminal 30.

[0055] A sealing element 50 is disposed between the reserved hole 11 and the electrical terminal 30 to seal the gap between the inner wall 110 of the reserved hole 11 and the outer wall 301 of the electrical terminal 30, thereby preventing fluid from flowing into the mounting box 10 through the gap. The sealing element 50 can be made of various materials such as rubber, silicone, and polypropylene. There can be one or more sealing elements 50, which is not limited in this application. In the embodiments of this application, the number of sealing elements 50, the number of electrical terminals 30, and the number of reserved holes 11 are corresponding. The sealing element 50 can be separately molded and then sleeved on the electrical terminal 30, or it can be sleeved on the outer wall 301 of the electrical terminal 30 in the form of overmolding, or it can be directly molded onto the outer wall 301 of the electrical terminal 30 through a two-color injection molding process. In this case, the materials of the electrical terminal 30 and the sealing element 50 can be the same or different.

[0056] The seal 50 is installed in the gap between the inner wall 110 of the reserved hole 11 of the mounting box 10 and the outer wall 301 of the electrical terminal 30. This seal prevents fluid from flowing into the mounting box 10 and improves its waterproof rating. Furthermore, the seal 50 is low-cost and does not occupy additional installation space.

[0057] Please see Figures 4 to 6 In some embodiments, the electrical terminal 30 and the inner wall 110 of the pre-drilled hole 11 together form a deformation space 70, which is used to accommodate the seal 50. The seal 50 abuts against the electrical terminal 30 and the inner wall 110 of the pre-drilled hole 11 to form at least three sealing surfaces.

[0058] Specifically, the deformation space 70 is located between the outer wall 301 of the power terminal 30 and the inner wall 110 of the reserved hole 11. That is, the space between the outer wall 301 of the power terminal 30 and the inner wall 110 of the reserved hole 11 can all serve as the deformation space 70. The deformation space 70 can accommodate the sealing member 50, so that the sealing member 50 is not easily rolled off the power terminal 30 when the power terminal 30 is installed. In other words, the space between the outer wall 301 of the power terminal 30 and the inner wall 110 of the reserved hole 11 for installing the sealing member 50 is the deformation space 70. For example, when there is only one deformation space 70, the deformation space 70 is located between the outer wall 301 of the power terminal 30 and the inner wall 110 of the reserved hole 11. After the sealing member 50 is accommodated, the sealing member 50 can form a sealing surface by contacting other components, thereby filling the space between the outer side 103 of the mounting box 10 and the sealing member 50 (e.g.) within the reserved hole 11. Figure 5 The space between the inner wall of the first sub-hole 111 and the connecting part 35, the space between the inner wall of the second sub-hole 112 and the connecting part 35, and the space between the sealing member 50 and the inner side surface 105 of the mounting box 10 are isolated to achieve a waterproof effect and prevent fluid from entering the reserved hole 11 from the outer side surface 103 and then flowing into the inner side surface 105 of the mounting box 10 and the interior of the mounting box 10.

[0059] The sealing member 50 abuts against the electrical terminal 30 and against the inner wall 110 of the reserved hole 11, forming at least three sealing surfaces. Specifically, the sealing surface may include the surface where the sealing member 50 abuts against the vertically extending portion of the electrical terminal 30, the surface where the sealing member 50 abuts against the laterally extending portion of the outer wall 301 of the electrical terminal 30, and the surface where the sealing member 50 abuts against the inner wall 110 of the reserved hole 11. Further, the sealing member 50 abutting against portions of the outer wall 301 of the electrical terminal 30 in different extending directions can form multiple sealing surfaces, and the sealing member 50 abutting against portions of the inner wall 110 of the reserved hole 11 in different extending directions can also form multiple sealing surfaces. For example, in the installation direction S in which the electrical terminal 30 is inserted into the reserved hole 11, the reserved hole 11 includes a first sub-hole 111, a second sub-hole 112, a third sub-hole 113, and a fourth sub-hole 114 connected in sequence. In one embodiment, the inner walls of the second sub-hole 112 and the third sub-hole 113 of the pre-drilled hole 11 extend in different directions. Therefore, the sealing member 50 can abut against the inner wall 110 of the first sub-hole 111 to form a first sealing surface, against the inner wall 110 of the second sub-hole 112 to form a second sealing surface, and against the inner wall 110 of the third sub-hole 113 to form a third sealing surface. Thus, the first, second, and third sealing surfaces are located on different planes, preventing fluid from entering the mounting box 10 from these different planes, thereby improving the waterproofing effect.

[0060] Please see Figure 5 and Figure 7 In one embodiment, the inner sidewall 110 of the reserved hole 11 is provided with a first groove 115. In another embodiment, the outer sidewall 301 of the body portion 31 is provided with a second groove 311, and the deformation space 70 includes the first groove 115 and / or the second groove 311.

[0061] Specifically, in one embodiment, the first groove 115 includes one, and the first groove 115 may be provided in one or more of the first sub-hole 111, the second sub-hole 112, the third sub-hole 113, and the fourth sub-hole 114 (e.g. Figure 6 In another embodiment, there may be multiple first grooves 115. Multiple first grooves 115 may be provided in one or more of the first sub-hole 111, second sub-hole 112, third sub-hole 113, and fourth sub-hole 114. The inner wall 110 of the reserved hole 11 is provided with the first grooves 115, allowing the reserved hole 11 to have different dimensions in the installation direction S to accommodate different electrical terminals 30. The deformation space 70 includes the first grooves 115, allowing the seal 50 to be accommodated in the first grooves 115, thereby increasing the contact area between the reserved hole 11 and the seal 50, and thus improving the sealing effect.

[0062] Specifically, in one embodiment, the second groove 311 includes one, and the second groove 311 may be provided in one or more of the connecting portion 35, the first sub-part 313, the second sub-part 315, and the engaging portion 33 (e.g., Figure 7 In another embodiment, there may be multiple second grooves 311. Multiple second grooves 311 may be provided in one or more of the connecting portion 35, the first sub-portion 313, the second sub-portion 315, and the engaging portion 33. The second grooves 311 provided on the outer wall 301 of the body portion 31 allow the body portion 31 to have different dimensions in the mounting direction S to accommodate different electrical terminals 30. The deformation space 70 includes the second grooves 311, allowing the sealing member 50 to be accommodated within the second grooves 311, thereby increasing the contact area between the body portion 31 and the sealing member 50, and thus improving the sealing effect.

[0063] The deformation space 70 can be set in the first groove 115 and the second groove 311, thereby further improving the sealing effect of the mounting box 10 and also improving the flexibility of layout and process.

[0064] Please see Figure 5 and Figure 6 In some embodiments, in the mounting direction S of the pre-drilled hole 11 into which the power terminal 30 is inserted, the pre-drilled hole 11 includes a first sub-hole 111, a second sub-hole 112, a third sub-hole 113, and a fourth sub-hole 114 connected in sequence. The first sub-hole 111 is near the outer side 103 of the mounting box 10, and the fourth sub-hole 114 is near the inner side 105 of the mounting box 10. The power terminal 30 includes a body portion 31, a locking portion 33, and a connecting portion 35, with the connecting portion 35 and the locking portion 33 located at opposite ends of the body portion 31. The body portion 31 includes a first sub-hole 313 and a second sub-hole 315 connected in sequence. The first sub-hole 313 is connected to the connecting portion 35, and the second sub-hole 315 is connected to the locking portion 33. The first sub-hole 313 is accommodated in the third sub-hole 113 and forms a deformation space 70 between itself and the inner sidewall 110 of the third sub-hole 113.

[0065] Specifically, the dimensions of the first sub-hole 111, the second sub-hole 112, the third sub-hole 113, and the fourth sub-hole 114 are not limited in the mounting direction S and in the direction perpendicular to the mounting direction S. The diameters of the first sub-hole 111, the second sub-hole 112, the third sub-hole 113, and the fourth sub-hole 114 may vary in the mounting direction S or remain unchanged. In the embodiments of this application, the dimensions of the first sub-hole 111, the third sub-hole 113, and the fourth sub-hole 114 do not change in the mounting direction S, which allows the electrical terminal 30 to be easily formed. The size of the second sub-hole 112 gradually decreases along the mounting direction S, that is, the size of the second sub-hole 112 where it connects with the first sub-hole 111 is larger than the size of the second sub-hole 112 where it connects with the third sub-hole 113, which allows the electrical terminal 30 to be easily installed into the reserved hole 11.

[0066] In the installation direction S, the connecting part 35 is accommodated in the first sub-hole 111 and the second sub-hole 112, the first sub-part 313 is accommodated in the third sub-hole 113, the second sub-part 315 is accommodated in the fourth sub-hole 114, and the engaging part 33 is engaged with the inner side 105 after passing through the reserved hole 11. In this way, the power terminal 30 can be installed into the reserved hole 11.

[0067] In one embodiment, the first sub-part 313 is housed in the third sub-hole 113 and forms a deformation space 70 between it and the inner wall 110 of the third sub-hole 113. The sealing member 50 is housed in the deformation space 70. In this way, the path of fluid entering the gap between the inner wall 110 of the first sub-hole 111 and the inner wall 110 of the second sub-hole 112 and the outer wall 301 of the connecting part 35, and then entering the gap between the inner wall 110 of the third sub-hole 113 and the outer wall of the body part 31 can be blocked.

[0068] In other embodiments, at least one deformation space 70 can be formed at other locations between the inner wall 110 of the reserved hole 11 and the outer wall 301 of the electrical terminal 30. For example, a deformation space 70 can be formed between the connecting portion 35 and the inner wall 110 of the first sub-hole 111, between the connecting portion 35 and the inner wall 110 of the second sub-hole 112, and between the second sub-portion 315 and the inner wall 110 of the fourth sub-hole 114, with a sealing element 50 provided in each deformation space 70. In this way, multiple sealing elements 50 can block the fluid flowing into the reserved hole 11 multiple times, preventing the fluid from entering the interior of the mounting box 10, thereby improving the waterproof rating of the mounting box 10.

[0069] In some embodiments, the body portion 31, the engaging portion 33, and the connecting portion 35 are an integral structure, that is, the body portion 31, the engaging portion 33, and the connecting portion 35 are a single unit. This improves the bonding strength between the body portion 31, the engaging portion 33, and the connecting portion 35, preventing separation of the body portion 31, the engaging portion 33, and the connecting portion 35 during operation of the power terminal 30, thereby ensuring the stability and reliability of the power terminal 30's operation. In other embodiments, the body portion 31, the engaging portion 33, and the connecting portion 35 are separate structures, that is, the body portion 31, the engaging portion 33, and the connecting portion 35 are at least two different structures. In one example, at least two of the separate structures of the body portion 31, the engaging portion 33, and the connecting portion 35 can be joined together by a detachable connection method, including but not limited to snap-fit ​​connections or threaded connections. In another example, at least two of the separate structures of the body portion 31, the engaging portion 33, and the connecting portion 35 can be joined together by a non-detachable connection method, including but not limited to bonding or welding.

[0070] In some embodiments, the first sub-part 313 and the second sub-part 315 are an integral structure, that is, the first sub-part 313 and the second sub-part 315 are a single unit, thereby improving the bonding strength between the first sub-part 313 and the second sub-part 315 and preventing separation of the first sub-part 313 and the second sub-part 315 during the operation of the main body 31, thus ensuring the stability and reliability of the operation of the main body 31. In other embodiments, the first sub-part 313 and the second sub-part 315 are separate structures, that is, the first sub-part 313 and the second sub-part 315 are two different structures. In one example, the first sub-part 313 and the second sub-part 315 can be joined together by a detachable connection method, including but not limited to snap-fit ​​connections or threaded connections. In another example, the first sub-part 313 and the second sub-part 315 can be joined together by a non-detachable connection method, including but not limited to bonding or welding.

[0071] Please see Figure 6 In some embodiments, the diameter of the first sub-part 313 is the same as the diameter of the second sub-part 315.

[0072] Specifically, the diameter of the first sub-part 313 is the same as the diameter of the second sub-part 315, which facilitates the forming of the electrical terminal 30.

[0073] Please see Figure 6 In some embodiments, the diameter of the first sub-part 313 is smaller than the diameter of the second sub-part 315.

[0074] Specifically, the larger diameter second sub-part 315 provides a good sealing effect, effectively intercepting fluid after it enters the third sub-hole 113 from the outer surface 103 of the mounting box 10, preventing fluid from flowing into the interior of the mounting box 10. Furthermore, the larger diameter second sub-part 315 increases the contact area between the second sub-part 315 and the fourth sub-hole 114, resulting in better installation strength.

[0075] Please see Figure 5 and Figure 6 In some embodiments, the fourth sub-hole 114 is interference-fitted with the second sub-section 315.

[0076] Specifically, the interference fit between the fourth sub-hole 114 and the second sub-part 315 ensures a tight fit between them, improving the connection stability. Furthermore, the interference fit further seals the gap between the inner wall 110 of the fourth sub-hole 114 and the outer wall 301 of the second sub-part 315, preventing fluid from flowing into this gap and thus improving the sealing effect between them, thereby enhancing the overall waterproof performance of the mounting box assembly 100.

[0077] Please see Figure 5 and Figure 7 In some embodiments, the power terminal 30 further includes a protrusion 37, which is arranged circumferentially along the outer sidewall 301 of the body portion 31. The protrusion 37 and the body portion 31 are integrally formed, and the protrusion 37 is interference-fitted with the inner sidewall 110 of the reserved hole 11.

[0078] Specifically, the protrusion 37 can be one or more, and is not limited in this application. In some embodiments, the protrusion 37 and the body 31 are an integral structure, that is, the protrusion 37 and the body 31 are a single unit, thereby improving the bonding strength between the protrusion 37 and the body 31 and preventing separation of the protrusion 37 and the body 31 during the operation of the power terminal 30, thus ensuring the stability and reliability of the operation of the power terminal 30. In other embodiments, the protrusion 37 and the body 31 are separate structures, that is, the protrusion 37 and the body 31 are two different structures. In one example, the protrusion 37 and the body 31 can be joined together by a detachable connection method, including but not limited to snap-fit ​​connections or threaded connections. In another example, the protrusion 37 and the body 31 can be joined together by a non-detachable connection method, including but not limited to bonding or welding.

[0079] The protrusion 37 is interference-fitted with the inner wall 110 of the pre-drilled hole 11, ensuring a tight fit and improving the connection stability between them. Furthermore, the interference fit further seals the gap between the outer wall 301 of the protrusion 37 and the inner wall 110 of the pre-drilled hole 11, preventing fluid from flowing into this gap. This improves the sealing effect between the body 31 and the pre-drilled hole 11, thereby enhancing the overall waterproof performance of the mounting box assembly 100.

[0080] Please see Figure 5 and Figure 6 In some embodiments, in the installation direction of the power terminal 30 being inserted into the reserved hole 11, the inner sidewall 110 of the reserved hole 11 includes a guide portion 1101. The longitudinal section of the guide portion 1101 is a trapezoid with a larger upper section and a smaller lower section. The longitudinal section of the engaging portion 33 is a trapezoid with a larger upper section and a smaller lower section. The engaging portion 33 cooperates with the guide portion 1101.

[0081] Specifically, in the installation direction S, the longitudinal section (i.e., the section obtained by cutting a plane perpendicular to the installation direction S) of the guide portion 1101 and the engaging portion 33 is trapezoidal, wider at the top and narrower at the bottom. When installing the electrical terminal 30, the shapes of the engaging portion 33 and the guide portion 1101 can match, and the guide portion 1101 provides a guiding function, facilitating the insertion of the engaging portion 33 into the reserved hole 11. In the installation direction S, the guide portion 1101 can be positioned arbitrarily; that is, the guide portion 1101 can be provided on the inner wall 110 of the first sub-hole 111, the second sub-hole 112, the third sub-hole 113, and the fourth sub-hole 114. In one embodiment, the guide portion 1101 is the inner wall 110 of the second sub-hole 112. Thus, the inner wall 110 of the second sub-hole 112 guides the outer wall 301 of the engaging part 33. When the power terminal 30 is inserted into the reserved hole 11, the inner wall 110 of the second sub-hole 112 facilitates the insertion of the power terminal 30 into the reserved hole 11.

[0082] Please see Figure 4 , Figure 5 and Figure 6 In some embodiments, the electrical terminal 30 extends into the mounting box 10 from the reserved hole 11, and the engaging part 33 engages with the inner side 105 of the mounting box 10.

[0083] Specifically, the engaging portion 33 engages with the inner surface 105 of the mounting box 10, enabling the electrical terminal 30 to be securely mounted on the mounting box 10 and improving installation strength. Furthermore, when the electrical terminal 30 is subjected to an external force opposite to the installation direction S, the engaging surface of the engaging portion 33 and the inner surface 105 of the mounting box 10 provides a reaction force, preventing the electrical terminal 30 from being pulled out of the pre-drilled hole 11.

[0084] Please see Figure 1 and Figure 3 This application provides an earphone 1000, which includes the mounting box assembly 100 of any of the above embodiments.

[0085] Specifically, the flexible electrical connector 40 is mounted on the circuit board 20 and electrically connected to the power terminal 30. The flexible electrical connector 40 can adapt to different distances between the power terminal 30 and the circuit board 20 through elastic deformation, thereby maintaining a stable electrical connection between the power terminal 30 and the circuit board 20. In addition, using the flexible electrical connector 40 can avoid the need to use SMT technology to connect the power terminal 30 and the circuit board 20, saving costs.

[0086] Please see Figure 1 and Figure 3 In some embodiments, the earphone 1000 includes air conduction earphones and bone conduction earphones.

[0087] In some embodiments of this application, the earphone 1000 can be worn on a user's ear and can be used in conjunction with devices such as mobile phones, computers, smart wearable devices (such as smartwatches, smart bracelets, smart glasses, smart helmets, etc.), head-mounted displays, and virtual reality devices. Among these, air-conduction earphones, also known as air-conduction headphones, are earphones that transmit sound through air vibrations. Bone-conduction earphones, also known as bone-conduction headphones, are earphones that convert sound into different mechanical vibrations and transmit sound waves through the skull, bony labyrinth, inner ear synovial fluid, cochlea, and auditory center.

[0088] It should be noted that the user's ear can include the external auditory canal, concha, cymba conchae, triangular fossa, helix, and antitragus. Among these, the concha, cymba conchae, and triangular fossa have a certain depth and volume in three-dimensional space. The external auditory canal is a curved tube extending medially from the external auditory meatus deep within the concha to the tympanic membrane.

[0089] Furthermore, in some embodiments, the earphone 1000 includes a transducer assembly, which is a structure in the earphone 1000 used to enable the user to hear sound. In one example, when the earphone 1000 is a bone conduction earphone, the transducer assembly is configured to be located on the front side of the ear when the earphone 1000 is worn, in which case the transducer assembly does not obstruct the external auditory canal. In another example, when the earphone 1000 is an air conduction earphone, the transducer assembly is configured to at least partially extend into at least one part of the concha, cymba conchae, and triangular fossa when the earphone 1000 is worn. It should be noted that the embodiments described below only use a bone conduction earphone 1000 as an example.

[0090] Specifically, the mounting box assembly 100 of this application can be mounted on various types of headphones 1000, such as air conduction headphones 1000 and bone conduction headphones 1000, exhibiting high adaptability. This application only illustrates an embodiment in which the mounting box assembly 100 is used for bone conduction headphones 1000. In other embodiments, the type of headphones 1000 mounted on the mounting box assembly 100 is not limited.

[0091] Please see Figure 1 and Figure 3 This application provides an earphone system 10000, which includes an earphone 1000 according to any of the above embodiments and a charging case 3000. The charging case 3000 is used to charge the earphone 1000.

[0092] Specifically, the charging case 3000 is equipped with a flexible electrical connector 40 that mates with the power terminal 30. The charging case 3000 can charge the earphone 1000. The earphone system 10000 connects to the power terminal 30 by mounting the flexible electrical connector 40 on the circuit board 20. The flexible electrical connector 40 can adapt to different distances between the power terminal 30 and the circuit board 20 through elastic deformation, thereby maintaining a stable electrical connection between the power terminal 30 and the circuit board 20. In addition, using the flexible electrical connector 40 avoids the need for SMT (Surface Mount Technology) to connect the power terminal 30 and the circuit board 20, saving costs.

[0093] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0094] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the stated features. In the description of this application, "multiple" means at least two, such as two or three, unless otherwise explicitly specified.

[0095] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A mounting box assembly, characterized in that, include: Mounting box, wherein the mounting box is provided with a reserved hole; A circuit board, which is housed within a mounting box; A power terminal is provided, which is installed in the reserved hole. and A flexible electrical connector is mounted on the circuit board. The flexible electrical connector includes a conductive body and a conductive spring. The conductive body is mounted on the circuit board, and the conductive spring is disposed on the conductive body. The conductive spring extends from the conductive body in a direction away from the circuit board and abuts against the electrical terminal.

2. The mounting box assembly according to claim 1, characterized in that, The conductive spring bends back towards the circuit board and forms a protrusion, which abuts against the engaging portion of the power terminal.

3. The mounting box assembly according to claim 1, characterized in that, There are multiple electrical terminals and multiple flexible electrical connectors. At least two of the electrical terminals are at different heights from the circuit board so that the outer surfaces of the multiple electrical terminals are flush.

4. The mounting box assembly according to claim 1, characterized in that, The mounting box assembly also includes a seal, which is located between the inner wall of the reserved hole and the outer wall of the power connection terminal, and is sleeved on the outer wall of the power connection terminal. The seal is used to seal the gap between the inner wall of the reserved hole and the outer wall of the power connection terminal.

5. The mounting box assembly according to claim 4, characterized in that, The electrical terminal and the inner wall of the reserved hole together form a deformation space, which is used to accommodate the sealing element. The sealing element abuts against the electrical terminal and the inner wall of the reserved hole to form at least three sealing surfaces.

6. The mounting box assembly according to claim 5, characterized in that, The inner wall of the reserved hole is provided with a first groove; and / or, The power terminal includes a body portion, and a second groove is provided on the outer side of the body portion; The deformation space includes the first groove and / or the second groove.

7. The mounting box assembly according to claim 5, characterized in that, In the installation direction of the electrical terminal being inserted into the reserved hole, the reserved hole includes a first sub-hole, a second sub-hole, a third sub-hole, and a fourth sub-hole connected in sequence. The first sub-hole is close to the outer side of the mounting box, and the fourth sub-hole is close to the inner side of the mounting box. The electrical terminal includes a body portion, a locking portion, and a connecting portion. The connecting portion and the locking portion are located at opposite ends of the body portion. The connecting portion is accommodated in the first sub-hole and the second sub-hole. The body portion includes a first sub-part and a second sub-part connected in sequence. The first sub-part is connected to the connecting portion, and the second sub-part is connected to the locking portion. The first sub-part is accommodated in the third sub-hole and forms the deformation space between it and the inner sidewall of the third sub-hole. The second sub-part is accommodated at least in the fourth sub-hole.

8. The mounting box assembly according to claim 7, characterized in that, The diameter of the first sub-part is the same as the diameter of the second sub-part; or, The diameter of the first sub-part is smaller than the diameter of the second sub-part.

9. The mounting box assembly according to claim 7, characterized in that, The fourth sub-hole is interference-fitted with the second sub-section.

10. The mounting box assembly according to claim 6, characterized in that, The power terminal also includes a protrusion, which is arranged circumferentially along the outer side wall of the main body. The protrusion and the main body are integrally formed, and the protrusion is interference-fitted with the inner side wall of the reserved hole.

11. The mounting box assembly according to claim 1, characterized in that, The power terminal includes a body and a locking part located at one end of the body. In the installation direction in which the power terminal is inserted into the reserved hole, the inner wall of the reserved hole includes a guide part. The longitudinal section of the guide part is a trapezoid with a larger upper section and a smaller lower section. The longitudinal section of the locking part is a trapezoid with a larger upper section and a smaller lower section. The locking part cooperates with the guide part.

12. The mounting box assembly according to claim 11, characterized in that, In the installation direction, the reserved hole includes a first sub-hole, a second sub-hole, a third sub-hole, and a fourth sub-hole connected in sequence. The first sub-hole is close to the outer side of the mounting box, the fourth sub-hole is close to the inner side of the mounting box, and the guide portion is the inner sidewall of the second sub-hole.

13. The mounting box assembly according to claim 1, characterized in that, The power terminal includes a body and a locking part located at one end of the body. The power terminal extends into the mounting box from the reserved hole, and the locking part engages with the inner side of the mounting box.

14. An earphone, characterized in that, include: The mounting box assembly according to any one of claims 1-13.

15. The earphone according to claim 14, characterized in that, The headphones include air conduction headphones and bone conduction headphones.

16. A headphone system, characterized in that, include: The headphones as claimed in claim 14 or 15; and A charging case for charging the earphones.

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