Charging box and earphone assembly

Abstract

The utility model relates to a charging box and an earphone assembly. The charging box can be used for storing and charging an earphone. The charging box comprises an upper shell, a lower shell, an opening and closing mechanism and a circuit board. The circuit board is located in the lower shell. The opening and closing mechanism is connected with the upper shell and the lower shell and enables the upper shell to be opened or closed relative to the lower shell. The metal part of the upper shell is electrically connected with the opening and closing mechanism, and the opening and closing mechanism is electrically connected with the circuit board to achieve grounding of the metal part. According to the embodiment of the invention, the metal part of the upper shell is electrically connected with the circuit board in the lower shell through the opening and closing mechanism, so that the metal part is grounded, the grounding mode is simple, and the grounding effect is good.

Description

Technical Field

[0001] The present application relates to the technical field of earphone devices, and in particular to a charging box and an earphone assembly. Background Art

[0002] Wireless earphones are becoming more and more popular due to their portability and fashionability. Currently, wireless earphones are gradually becoming a trend. A charging box is essential for storing and charging wireless earphones. The charging box usually includes a housing, a circuit board and other circuit components. When the housing is made of metal, the electrostatic discharge of the metal will cause the software or hardware functions of the charging box to fail, affecting the user experience. Utility Model Content

[0003] The embodiment of the present application provides a charging box and an earphone assembly. The present application grounds the metal part of the shell of the charging box by designing a reasonable grounding path, thereby effectively improving the reliability of the charging box.

[0004] In the first aspect, an embodiment of the present application provides a charging box, which can be used to store and charge earphones, and the earphones can be wireless earphones. The charging box includes an upper shell, a lower shell, an opening and closing mechanism, and a circuit board. The opening and closing mechanism connects the upper shell and the lower shell, and enables the upper shell to be opened or closed relative to the lower shell. The upper shell and the lower shell jointly enclose a receiving cavity, and the receiving cavity is used to receive the earphones. The upper shell includes a metal part. It can be understood that the upper shell can be entirely made of metal to form the metal part, or part of the structure of the upper shell can be made of metal to form the metal part. The upper shell can be a single-layer structure, the upper shell can also be a multi-layer structure, the lower shell can be a single-layer structure, and the lower shell can also be a multi-layer structure, and the multi-layer can be understood as two layers and more than two layers. The circuit board is located in the lower shell, and the circuit board can be fixed to the lower shell or fixed to a structural member in the lower shell. The metal part is electrically connected to the opening and closing mechanism, and the opening and closing mechanism is electrically connected to the circuit board to achieve grounding of the metal part.

[0005] The electrostatic discharge of the metal part of the upper shell will cause the software or hardware functions of the charging box to fail, affecting the user experience. For example, the electrostatic discharge of the metal will cause the software function of the charging box to fail, requiring shutdown and restart, affecting the user experience, or the electrostatic discharge of the metal will cause the hardware (such as circuit boards) in the charging box to fail and damage the charging box. Therefore, it is necessary to ground the metal part of the upper shell to improve the performance reliability of the charging box.

[0006] The embodiment of the present application fully and reasonably utilizes the opening and closing mechanism of the charging box, and electrically connects the metal part to the opening and closing mechanism by setting the metal part to be electrically connected to the circuit board in the lower shell, so as to realize the grounding of the metal part and avoid the influence of the electrostatic discharge of the metal part on the performance of the charging box. The distance between the metal part of the upper shell and the circuit board in the lower shell is relatively far. The embodiment of the present application realizes the grounding of the metal part by utilizing the opening and closing mechanism of the charging box and the internal space of the charging box. The grounding method is simple and the grounding effect is good.

[0007] In a possible implementation, the opening and closing mechanism includes a bracket and a shaft. The bracket is fixedly connected to the upper shell, and is rotatably connected to the lower shell via the shaft, and the bracket is electrically connected to the metal part and the circuit board. One end of the bracket is rotatably connected to the shaft, and the other end of the bracket is fixedly connected to the upper shell. The grounding path of the metal part can be: the metal part can be electrically connected to the bracket, the bracket is electrically connected to the shaft, and the shaft is electrically connected to the circuit board to achieve grounding of the metal part; or, the metal part can be electrically connected to the bracket, the bracket is electrically connected to the shaft, the shaft is electrically connected to the lower shell, and the lower shell is electrically connected to the circuit board to achieve grounding of the metal part; or, the metal part is electrically connected to the bracket, the bracket is electrically connected to the circuit board to achieve grounding of the metal part; or, the metal part is electrically connected to the bracket, the bracket is electrically connected to the circuit board to achieve grounding of the metal part; or, the metal part is electrically connected to the bracket, the bracket is electrically connected to the lower shell, and the lower shell is electrically connected to the circuit board. The grounding path of the metal part in the embodiment of the present application is flexible and can be designed according to the space in the charging box.

[0008] In a possible implementation, the shaft is fixedly connected to the lower housing, the bracket is rotatably connected to the shaft, and the bracket is electrically connected to the circuit board via the shaft. The shaft can be fixed to the lower housing via a colloid, a buckle or other fixing structure, or the shaft can be welded to the lower housing. The embodiment of the present application realizes electrical connection between the metal part and the circuit board through the bracket and the shaft, thereby realizing grounding of the metal part.

[0009] In a possible implementation manner, the bracket is fixedly connected to the lower housing and is rotatably connected to the upper housing via the rotating shaft. Exemplarily, the rotating shaft is fixed to the upper housing, and the bracket is rotatably connected to the rotating shaft.

[0010] In a possible implementation, the bracket includes a through hole, the rotating shaft passes through the through hole, and the spacing between the hole wall of the through hole and the rotating shaft is less than or equal to 0.05 mm. When the spacing between the hole wall of the through hole and the rotating shaft is too large, it is difficult to electrically connect the bracket to the rotating shaft. By setting the spacing between the hole wall of the through hole and the rotating shaft to be less than or equal to 0.05 mm, a good electrical connection between the bracket and the rotating shaft can be achieved.

[0011] In a possible implementation, the charging box includes a conductive member, and the conductive member electrically connects the bracket and the metal part. The bracket and the metal part can be electrically connected through the conductive member, and the connection method is simple. The conductive member is clamped between the bracket and the metal part, has high stability, and is not easy to fall off. The conductive member can be a structure with connection strength, such as conductive glue. When the conductive member electrically connects the metal part and the bracket, it can also fix the connection between the metal part and the bracket, thereby increasing the structural stability of the charging box. The conductive member can also be conductive cloth, conductive silver paste or conductive foam, etc.

[0012] In a possible implementation manner, the number of the conductive members is at least two, and the at least two conductive members are arranged at intervals. When the number of the conductive members is at least two, the reliability of the electrical connection can be increased. The positions of the at least two conductive members can be set as needed, and the embodiment of the present application is not limited thereto.

[0013] In a possible implementation, the charging box includes an adhesive member, the adhesive member fixedly connects the bracket and the upper shell, and the connection strength of the adhesive member is greater than the connection strength of the conductive member. The adhesive member has a high connection strength, and the provision of the adhesive member can increase the connection strength between the bracket and the upper shell to increase the structural stability of the charging box. The adhesive member can be a two-liquid mixed hardening glue, which has a very high bonding strength.

[0014] In a possible implementation, the number of the adhesive parts is at least two, at least two of the adhesive parts are spaced apart and located at the edge of the bracket, and the conductive part is located between two adjacent adhesive parts. The adhesive parts have high connection strength, and the adhesive parts are located at the edge of the bracket, which can increase the overall structural strength of the bracket and the upper shell. A large number of adhesive parts can increase the connection area between the bracket and the upper shell, which is conducive to increasing the connection stability between the bracket and the upper shell.

[0015] In a possible implementation, the charging box includes an electrical connector, which electrically connects the bracket and the circuit board. In the embodiment of the present application, the grounding path of the metal part can be: the metal part, the bracket, the electrical connector and the circuit board are electrically connected in sequence. The bracket can be made of conductive metal material, and the charge released to the bracket can be conducted to the circuit board through the electrical connector instead of the shaft, which reduces the conductive structure required in the grounding process of the metal part and enhances the grounding reliability.

[0016] In a possible implementation, the opening and closing mechanism includes a rotating shaft, the rotating shaft is fixed to the lower shell, the upper shell is provided with a connecting hole, the rotating shaft passes through the connecting hole, and the metal part is electrically connected to the rotating shaft, or the rotating shaft is fixed to the upper shell, the lower shell is provided with a connecting hole, the rotating shaft passes through the connecting hole, and the metal part is electrically connected to the rotating shaft. The opening and closing mechanism may not be provided with a bracket, which is conducive to the miniaturization and lightweight of the charging box. The rotating shaft connects the upper shell and the lower shell so that the upper shell can be opened or closed relative to the lower shell through the rotating shaft. When the opening and closing mechanism includes a rotating shaft and the opening and closing mechanism is not provided with a bracket, the grounding path of the metal part can be: the metal part, the rotating shaft and the circuit board are electrically connected in sequence, or the metal part, the rotating shaft, and the circuit board of the lower shell are electrically connected in sequence. The grounding path in the embodiment of the present application is flexible and can be designed according to the space and structure in the charging box.

[0017] In a possible implementation manner, the distance between the hole wall of the connecting hole and the rotating shaft is less than or equal to 0.05 mm, which is conducive to achieving electrical connection between the metal portion of the upper shell and the rotating shaft.

[0018] In a possible implementation, the charging box includes an electrical connector, which electrically connects the shaft and the circuit board, or the electrical connector electrically connects the lower shell and the circuit board. The grounding path of the metal part in the embodiment of the present application can be: the metal part, the bracket, the shaft, the electrical connector and the circuit board are electrically connected in sequence, or the metal part, the bracket, the shaft, the lower shell, the electrical connector and the circuit board are electrically connected in sequence. The grounding path in the embodiment of the present application is flexible and can be designed according to the space and structure in the charging box.

[0019] In a possible implementation, the electrical connector is a flexible circuit board, a reed or an ejector pin. The flexible circuit board has good flexibility and conductivity, and can be bent according to the internal space and structure of the charging box to avoid occupying too much space in the charging box, thereby improving the space utilization inside the charging box. The reed or ejector pin can also achieve a good and stable electrical connection.

[0020] It can be understood that the embodiment of the present application utilizes the existing opening and closing mechanism of the charging box to achieve electrical connection between the metal part and the circuit board. The conductive parts for electrical connection are arranged in the gap of the upper shell. The electrical connectors are flexibly arranged in the unoccupied space of the lower shell due to their own flexibility. There is no need to increase the size of the charging box, which is conducive to the charging box having good performance and miniaturization.

[0021] In a possible implementation, the lower shell is electrically connected to the circuit board; the charging box includes a conductive contact, the conductive contact is fixed to the portion of the bracket located at the lower shell, when the upper shell is closed relative to the lower shell, the conductive contact contacts the lower shell and electrically connects the bracket and the lower shell, when the upper shell is opened relative to the lower shell, the conductive contact is separated from the lower shell. The conductive contact may be a conductive foam or the like. By setting a conductive contact fixed to the bracket, when the upper shell is closed relative to the lower shell, the conductive contact electrically connects the bracket and the lower shell, it is possible to increase the electrical connection path between the metal part and the circuit board when the upper shell is closed relative to the lower shell, thereby improving the grounding reliability of the metal part and the circuit board.

[0022] In a second aspect, the present application provides an earphone assembly, comprising an earphone and a charging box as described in any of the aforementioned embodiments, the earphone is located in a receiving cavity of the charging box, and the charging box is used to store and charge the earphone.

[0023] The embodiment of the present application electrically connects the metal part to the circuit board in the lower shell through an opening and closing mechanism, thereby grounding the metal part and preventing static electricity release from the metal part from causing failure of the software or hardware functions of the charging box, thereby improving the reliability and performance stability of the charging box and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0025] Figure 1 is a schematic structural diagram of an earphone assembly provided in an embodiment of the present application;

[0026] Figure 2 yes Figure 1 The partial cross-sectional structure diagram of the charging box shown along AA;

[0027] Figure 3 yes Figure 1 A schematic diagram of an exploded structure of the charging box shown;

[0028] Figure 4 yes Figure 3 An enlarged view of the structure at X of the charging box shown;

[0029] Figure 5 yes Figure 1 Another exploded structural diagram of the charging box shown;

[0030] Figure 6 yes Figure 5 A schematic diagram of the structure of the charging box from another angle shown;

[0031] Figure 7 It is a schematic diagram of an exploded structure of the upper shell provided in an embodiment of the present application;

[0032] Figure 8 is a schematic diagram of the exploded structure of another upper shell provided in an embodiment of the present application;

[0033] Fig. 9 It is a schematic diagram of the exploded structure of an opening and closing mechanism provided in an embodiment of the present application;

[0034] Fig.10 It is a structural schematic diagram of an opening and closing mechanism and a connecting member provided in an embodiment of the present application;

[0035] Fig.11 It is a partial structural schematic diagram of an opening and closing mechanism provided in an embodiment of the present application;

[0036] Fig.12 yes Figure 2 A schematic diagram of a portion of the structure of the charging box shown;

[0037] Fig.13 yes Fig.12 An enlarged view of the structure at position H of the charging box shown;

[0038] Fig.14 It is a schematic diagram of the structure of another charging box provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] It should be understood that the terms “first”, “second”, etc. used in the present application are only used for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0041] In the description of the present application, the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0042] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, a conflicting connection or an integral connection; for ordinary technicians in this field, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0043] like Figure 1 As shown, Figure 1 1 is a schematic diagram of the structure of an earphone assembly 300. The earphone assembly 300 may include a charging box 100 and an earphone 200. As can be seen, Figure 1 The status of the charging box 100 and the earphone 200 in the embodiment is: the earphone 200 is not placed in the charging box 100 and the charging box 100 is in a closed state. It is understandable that the charging box 100 and the earphone 200 can also be in other states, for example, the earphone 200 is in the charging box 100 and the charging box 100 is in a closed state.

[0044] The charging box 100 may include an upper shell 10 and a lower shell 20. The upper shell 10 may be a single-layer structure, or a multi-layer structure, and the lower shell 20 may be a single-layer structure, or a multi-layer structure, and the multi-layer structure may be understood as two or more layers.

[0045] The lower shell charging box 100 may be a flip-top box, and the charging box 100 may be provided with an opening and closing side 110 and a connection side 120. When the charging box 100 is in a closed or open state, the upper shell 10 and the lower shell 20 may always be in a connected state at the connection side 120, so as to avoid the upper shell 10 and the lower shell 20 being completely separated when the charging box 100 is opened, causing the upper shell 10 to fall or be lost when the user uses it.

[0046] The charging box 100 can be used to store the earphones 200. The earphones 200 can be wireless earphones, which are portable. The upper shell 10 can be opened relative to the lower shell 20, that is, the upper shell 10 and the lower shell 20 can be separated at the opening and closing side 110 to open the charging box 100, and the earphones 200 can be placed on the lower shell 20 or taken out of the lower shell 20. The upper shell 10 can be closed relative to the lower shell 20, that is, after the earphones 200 are placed on the lower shell 20 or the earphones 200 are taken out of the lower shell 20, the upper shell 10 and the lower shell 20 can be close to each other at the opening and closing side 110 to close the charging box 100. The upper shell 10 and the lower shell 20 jointly enclose a accommodating cavity 310 (see Figure 2 ), the earphone 200 is located in the accommodating cavity 310, and the accommodating cavity 310 is used to accommodate the earphone 200.

[0047] See also Figure 1, the charging box 100 can be used to charge the earphone 200. The functional components of the charging box 100, such as the battery, circuit board ( Figure 1 The charging box 100 may include a charging interface 130, which may be provided on the lower housing 20. The charging interface 130 is electrically connected to the battery in the lower housing 20, and the charging interface 130 can be used to charge the battery in the lower housing 20 after being connected to an external power source. The earphones 200 are placed in the charging box 100, and the battery in the charging box 100 can charge the earphones 200. When charging the charging box 100, the earphones 200 can also be placed in the charging box 100, so that both the charging box 100 and the earphones 200 can be charged.

[0048] In some embodiments, the charging box 100 may be provided with a recess 140, part of which is provided in the upper shell 10, and another part of which is provided in the lower shell 20. When the user opens the charging box 100, the user's finger may act on the recess 140, so that the user can use force to open the upper shell 10 and put the earphone 200 into the charging box 100 or take the earphone 200 out of the charging box 100.

[0049] Figure 1 The charging box 100 and the earphone 200 are only schematic representations, and the size, shape, structure, etc. of the charging box 100 and the earphone 200 can be set as needed. The specific structure of the charging box 100 and the earphone 200 is not limited in this application.

[0050] like Figure 2 , Figure 3 and Figure 4 As shown, Figure 2 for Figure 1 The partial cross-sectional structure diagram of the charging box 100 cut along AA is shown. Figure 3 for Figure 1 A schematic diagram of an exploded structure of the charging box 100 is shown. Figure 4 for Figure 3 An enlarged view of the structure at X of the charging box 100 is shown.

[0051] The charging box 100 may also include an opening and closing mechanism 30 and a circuit board 40. The circuit board 40 is located in the lower shell 20. Currently, the circuit board 40 and other circuit components are all arranged in the lower shell 20. The circuit board 40 can be fixed to the inner wall of the lower shell 20 or to the structural parts in the lower shell 20. The embodiment of the present application does not limit the fixed position of the circuit board 40 in the lower shell 20. The opening and closing mechanism 30 connects the upper shell 10 and the lower shell 20, and can open or close the upper shell 10 relative to the lower shell 20.

[0052] See also Figures 2 to 4The upper shell 10 may include a metal part 14. It can be understood that part of the structure of the upper shell 10 may be made of metal, or the entire structure of the upper shell 10 may be made of metal, and the part of the upper shell 10 that is made of metal is the metal part 14. The shell structure made of metal is strong, can provide good protection for the internal structure of the charging box 100, and the appearance of the shell made of metal is good. The metal part 14 can be made of aluminum alloy or stainless steel. Aluminum alloy has the characteristics of low density and light weight, and stainless steel has both wear resistance and strong heat dissipation ability. The metal part 14 is electrically connected to the opening and closing mechanism 30, and the opening and closing mechanism 30 is electrically connected to the circuit board 40 to achieve grounding of the metal part 14.

[0053] It is understandable that when at least part of the structure of the upper shell 10 is made of metal, the metal electrostatic discharge will cause the software or hardware functions of the charging box 100 to fail, affecting the user experience. For example, the metal electrostatic discharge will cause the software function of the charging box 100 to fail, requiring shutdown and restart, or it will cause the hardware (such as circuit boards) in the charging box 100 to fail and damage the charging box 100. Therefore, it is necessary to ground the metal part 14 of the upper shell 10 to improve the reliability of the charging box 100.

[0054] In the embodiment of the present application, the metal part 14 is electrically connected to the opening and closing mechanism 30, and the opening and closing mechanism 30 is electrically connected to the circuit board 40 in the lower shell 20, so as to electrically connect the metal part 14 to the circuit board 40 in the lower shell 20, thereby grounding the metal part 14 and avoiding the influence of the electrostatic discharge of the metal part 14 on the performance of the charging box 100. The embodiment of the present application fully and reasonably utilizes the opening and closing mechanism 30 of the charging box 100 and the internal space of the charging box 100 to achieve the grounding of the metal part 14, with good grounding effect and simple grounding method.

[0055] See also Figures 2 to 4 , the opening and closing mechanism 30 may include a bracket 31 and a rotating shaft 32, the bracket 31 is fixedly connected to the upper shell 10, and is rotatably connected to the lower shell 20 through the rotating shaft 32. The bracket 31 is electrically connected to the metal part 14 and the circuit board 40. Exemplarily, the metal part 14 can be electrically connected to the bracket 31, the bracket 31 is electrically connected to the rotating shaft 32, and the rotating shaft 32 is electrically connected to the circuit board 40, so as to achieve the grounding of the metal part 14, that is, the bracket 31 can be electrically connected to the circuit board 40 through the rotating shaft 32; or, the metal part 14 can be electrically connected to the bracket 31, the bracket 31 is electrically connected to the rotating shaft 32, the rotating shaft 32 is electrically connected to the lower shell 20, and the lower shell 20 is electrically connected to the circuit board 40, so as to achieve the grounding of the metal part 14; or, the metal part 14 is electrically connected to the bracket 31, the bracket 31 is electrically connected to the circuit board 40, so as to achieve the grounding of the metal part 14; or, the metal part 14 is electrically connected to the bracket 31, the bracket 31 is electrically connected to the lower shell 20, and the lower shell 20 is electrically connected to the circuit board 40. The grounding path in the embodiment of the present application is flexible and can be designed according to the space inside the charging box 100.

[0056] In some possible embodiments, the shaft 32 is fixed to the lower shell 20, the upper shell 10 is fixedly connected to the bracket 31, the bracket 31 is rotatably connected to the shaft 32, and the upper shell 10 can rotate relative to the shaft 32, so that the upper shell 10 can be opened or closed relative to the lower shell 20. It can be understood that the shaft 32 can be fixed to the lower shell 20 by colloid (such as hot melt adhesive), buckle or other fixing structure, or the shaft 32 can also be welded to the lower shell 20.

[0057] It can be understood that when the opening and closing mechanism 30 in the embodiment of the present application includes a bracket 31 and a shaft 32, the shaft 32 can be fixed to the inside of the lower shell 20, and the bracket 31 can also be arranged inside the accommodating cavity 310 formed by the upper shell 10 and the lower shell 20. When the charging box 100 is closed, the opening and closing mechanism 30 cannot be seen from the outside of the charging box 100, that is, the opening and closing mechanism 30 can be set as a hidden structure, which is conducive to increasing the aesthetic appearance of the charging box 100, and can also reduce the gap between the upper shell 10 and the lower shell 20 to prevent external impurities or liquids from entering the inside of the charging box 100.

[0058] In other possible embodiments, the bracket 31 may be fixedly connected to the lower housing 20 and rotatably connected to the upper housing 10 via the shaft 32 to achieve grounding of the metal part 14. Exemplarily, the shaft 32 is fixed to the upper housing 10, and the bracket 31 is rotatably connected to the shaft 32.

[0059] See also Figure 4 , the charging box 100 may include an electrical connector 70. The electrical connector 70 may be a flexible circuit board. The flexible circuit board has good flexibility and conductivity, and can be bent according to the structure and internal space of the charging box 100 to avoid occupying too much space of the charging box 100. The electrical connector 70 may also be a reed or an ejector pin, etc., which can also achieve good and stable electrical connection.

[0060] In some embodiments, see Figure 4, the electrical connector 70 can electrically connect the shaft 32 and the circuit board 40. The electrical connector 70 can be electrically connected to the shaft 32 through a conductive adhesive 71, or the electrical connector 70 can also be welded to the shaft 32 to achieve electrical connection. When the electrical connector 70 is a flexible circuit board, the flexible circuit board has a window to leak copper to electrically connect to the shaft 32. In the embodiment of the present application, the grounding path of the metal part 14 can be: the metal part 14, the bracket 31, the shaft 32, the electrical connector 70 and the circuit board 40 are electrically connected in sequence to achieve grounding of the metal part 14. The shaft 32 can be made of conductive metal. When the electrical connector 70 is a flexible circuit board, the flexible circuit board uses its own flexibility to pass through reasonable bending inside the charging box 100. The flexible circuit board electrically connects the shaft 32 and the circuit board 40. The connection method is simple, and the connection path can be adjusted as needed, which is conducive to improving the space utilization of the charging box 100.

[0061] In some embodiments, the electrical connector 70 can electrically connect the lower housing 20 and the circuit board 40. At least part of the structure of the lower housing 20 can be made of conductive metal. In the embodiment of the present application, the grounding path of the metal part 14 can be: the metal part 14, the bracket 31, the shaft 32, the lower housing 20, the electrical connector 70 and the circuit board 40 are electrically connected in sequence to achieve the grounding of the metal part 14. When the shaft 32 is electrically connected to the lower housing 20, the electrical connector 70 can electrically connect the lower housing 20 and the circuit board 40 to achieve the grounding of the metal part 14. The shaft 32 can be electrically connected to the lower housing 20 by conductive glue or welding.

[0062] In some embodiments, the electrical connector 70 can electrically connect the bracket 31 and the circuit board 40. In the embodiment of the present application, the grounding path of the metal part 14 can be: the metal part 14, the bracket 31, the electrical connector 70 and the circuit board 40 are electrically connected in sequence to achieve the grounding of the metal part 14. At least part of the structure of the bracket 31 can be made of conductive metal material, and the charge released to the bracket 31 can be conducted to the circuit board 40 through the electrical connector 70 instead of the rotating shaft 32, which reduces the conductive structure required in the grounding process of the metal part 14 and enhances the grounding reliability.

[0063] In some embodiments, the electrical connector 70 can electrically connect the lower housing 20 and the circuit board 40. In the embodiment of the present application, the grounding path of the metal part 14 can be: the metal part 14, the bracket 31, the lower housing 20, the electrical connector 70 and the circuit board 40 are electrically connected in sequence to achieve the grounding of the metal part 14. Figure 2, the charging box 100 may include a conductive contact 80, which is fixed to the portion of the bracket 31 located at the lower shell 20. When the upper shell 10 is closed relative to the lower shell 20, the bracket 31 rotates around the rotating shaft 32, and the conductive contact 80 contacts the lower shell 20 and electrically connects the bracket 31 and the lower shell 20; when the upper shell 10 is opened relative to the lower shell 20, the bracket 31 rotates around the rotating shaft 32, and the conductive contact 80 is separated from the lower shell 20. The conductive contact 80 may be a conductive foam, etc. By setting the conductive contact 80 to be fixed to the bracket 31, when the upper shell 10 is closed relative to the lower shell 20, the bracket 31 and the lower shell 20 can be electrically connected through the conductive contact 80, which can increase the electrical connection path between the metal part 14 and the circuit board 40 when the upper shell 10 is closed relative to the lower shell 20, and improve the grounding reliability of the metal part 14 and the circuit board 40. The number of the conductive contact 80 may be one, two, or three, etc., and the embodiment of the present application does not limit the number and setting position of the conductive contact 80.

[0064] like Figure 3 , Figure 5 and Figure 6 As shown, Figure 5 for Figure 1 Another exploded structural diagram of the charging box 100 is shown. Figure 6 for Figure 5 A schematic diagram of the structure of the charging box 100 from another angle is shown. The charging box 100 may include a bracket 50. After the battery, circuit board 40 and other components and the opening and closing mechanism 30 are installed on the lower shell 20, the bracket 50 can be fixed to the lower shell 20. The bracket 50 may include a first receiving groove 51, a second receiving groove 52 and a notch 53. The first receiving groove 51 and the second receiving groove 52 can be used to place the earphone 200. The shape of the first receiving groove 51 and the shape of the second receiving groove 52 may be the same or different, and the shape of the first receiving groove 51 and the second receiving groove 52 may be specifically designed according to the shape of the earphone 200.

[0065] In some embodiments, the notch 53 can form a space for the bracket 31 of the opening and closing mechanism 30 to extend with the lower shell 20, and the rotating shaft 32 is located below the bracket 50. The upper shell 10 is provided with a gap 123, the bracket 31 extends into the gap 123 and is fixedly connected to the upper shell 10, and the bracket 31 is electrically connected to the metal part 14. The setting of the bracket 50 can isolate the earphone 200 from the components in the charging box 100 and is used to carry the earphone 200. The bracket 50 can be an integrally formed structure or a split structure assembled.

[0066] The assembly order of the charging box 100 of the embodiment of the present application may be to install the battery, circuit board and other devices into the lower housing 20, pass the shaft 32 through the through hole 313 of the bracket 31 and fix the shaft 32 to the inner wall of the lower housing 20, fix the bracket 50 to the lower housing 20, and connect the upper housing 10 to the opening and closing mechanism 30. The charging box 100 may also adopt other assembly orders according to the requirements of the process, etc., and the embodiment of the present application does not limit this.

[0067] Combined with reference Figure 2 , Figure 7 and Figure 8 , Figure 7 is a schematic diagram of an exploded structure of the upper housing 10, Figure 8 1 is another schematic diagram of the decomposed structure of the upper shell 10. The embodiment of the present application is described by taking the upper shell 10 as a multi-layer structure as an example. The upper shell 10 may include a first shell portion 11, a second shell portion 12 and a third shell portion 13. The first shell portion 11 includes a metal portion 14. The first shell portion 11 is a basic frame of the upper shell 10. The first shell portion 11 is made of metal material, which can increase the strength of the upper shell 10. An opening 111 is provided at the top of the first shell portion 11.

[0068] At least part of the structure of the second shell 12 is located on the side of the first shell 11 facing the lower shell 20. Exemplarily, the second shell 12 includes a first part 121 and a second part 122. The first part 121 is embedded in the opening 111, the second part 122 is located on the side of the first shell 11 facing the lower shell 20, and a gap 123 is formed between the second part 122 and the first shell 11, and the bracket 31 extends into the gap 123 and is fixedly connected to the upper shell 10. The material of the second shell 12 can be non-metal such as plastic.

[0069] When the first shell portion 11 is made of metal, the metal has a shielding effect on the antenna signal of the earphone 200. By setting an opening 111 on the top of the first shell portion 11 and embedding the second shell portion 12 made of non-metallic material into the opening 111, when the earphone 200 is in the charging box 100, it is beneficial to avoid the metal shielding the antenna signal of the earphone 200 and ensure the structural strength of the upper shell 10.

[0070] The third shell portion 13 covers and is fixed to the first shell portion 11 and the second shell portion 12, forming part of the appearance surface of the charging box 100. The third shell portion 13 may be an arc-shaped structure to increase the aesthetic appearance of the charging box 100 and improve the user's operating feel. The third shell portion 13 may be a single-layer structure, or a multi-layer structure, where multi-layers may be understood as two or more layers. The outermost layer structure of the third shell portion 13 as the appearance surface may be made of polyurethane synthetic leather, which is a soft material with leather texture and appearance. Polyurethane synthetic leather may provide characteristics such as waterproof, durable, and soft. The shell of polyurethane synthetic leather feels comfortable and has a light body. Because of its exquisite workmanship, its appearance is more exquisite and beautiful. The specific structure and material of the third shell portion 13 are not limited in the embodiments of the present application.

[0071] It can be understood that the upper shell 10 in the embodiment of the present application is only a schematic representation, and the upper shell 10 can be other structures. The embodiment of the present application does not limit the specific structure and material of the upper shell 10, and it can be designed according to requirements.

[0072] Combined with reference Figure 2 , Fig. 9 and Fig.10 , Fig. 9 is a schematic diagram of the exploded structure of the opening and closing mechanism 30, Fig.10 Schematic diagram of the structure of the opening and closing mechanism 30 and the connecting member 60. The bracket 31 of the opening and closing mechanism 30 includes a fixed end 311 and a rotating end 312. The fixed end 311 is embedded in the gap 123 of the upper shell 10, the fixed end 311 is fixedly connected to the first shell 11, and the fixed end 311 is fixedly connected to the second shell 12. The rotating end 312 is provided with a through hole 313, the rotating shaft 32 passes through the through hole 313, and the rotating shaft 32 is rotatably connected to the bracket 31.

[0073] See also Figure 2 and Fig.10 , the charging box 100 may include a connector 60, and the connector 60 may include a conductive member 61. The conductive member 61 electrically connects the bracket 31 and the metal part 14. The bracket 31 and the metal part 14 can be electrically connected through the conductive member 61, and the connection method is simple. The conductive member 61 is clamped between the bracket 31 and the metal part 14, and has high stability and is not easy to fall off. The conductive member 61 can be a structure with connection strength, such as conductive glue. When the conductive member 61 is electrically connected to the metal part 14 and the bracket 31, it can also fix the connection between the metal part 14 and the bracket 31, thereby increasing the structural stability of the charging box 100. The conductive member 61 can also be conductive cloth, conductive silver paste, conductive foam, etc.

[0074] In some embodiments, the number of the conductive members 61 is at least two, and the at least two conductive members 61 are arranged at intervals. For example, the conductive member 61 can be one, two, or three. When the number of the conductive members 61 is at least two, the reliability of the electrical connection can be increased. The positions of the at least two conductive members 61 can be set as needed, and the embodiments of the present application are not limited thereto.

[0075] The connector 60 may further include an adhesive 62, which fixes the bracket 31 and the upper shell 10. The connection strength of the adhesive 62 is greater than the connection strength of the conductive member 61. The adhesive 62 has a high connection strength. The provision of the adhesive 62 can increase the connection strength between the bracket 31 and the upper shell 10 to increase the structural stability of the charging box 100. The adhesive 62 may be a two-liquid mixed hardening glue, which has a very high bonding strength. The adhesive 62 may also be other materials with high connection strength, which is not limited in the embodiments of the present application.

[0076] In some embodiments, the number of adhesives 62 is at least two, at least two adhesives 62 are arranged at intervals corresponding to the edge of the bracket 31, and the conductive member 61 is located between two adjacent adhesives 62. For example, the adhesive 62 can be one, two or three. The adhesive 62 has a high connection strength. The adhesive 62 is located at the edge of the bracket 31, which can increase the structural strength of the bracket 31 and the upper shell 10 as a whole. It can be understood that when the adhesive 62 is not arranged at the edge position but at the middle position, the edge position is prone to cracking and is prone to affecting the connection strength at the middle position. For example, the number of conductive members 61 can be one, the number of adhesive members 62 can be two, and the conductive member 61 is located between the two adhesive members 62. In other embodiments, the number of conductive members 61 can be two, the number of adhesive members 62 can be two, and the two conductive members 61 are located between the two adhesive members 62.

[0077] It is understandable that the embodiment of the present application does not limit the location of the conductive member 61 and the adhesive member 62. In other embodiments, the conductive member 61 may not be located in the middle, the adhesive member 62 may not be located at the edge, the conductive member 61 may not be located between the adhesive members 62, and the conductive member 61 and the adhesive member 62 may be flexibly located as required.

[0078] Understandably, Fig.10 The shapes of the conductive member 61 and the adhesive member 62 shown are only schematic representations. The conductive member 61 and the adhesive member 62 may also be other shapes such as a circle or a triangle, and the shapes of the conductive member 61 and the adhesive member 62 may be the same or different.

[0079] In some embodiments, when the connection strength between the bracket 31 and the upper shell 10 is high, the charging box 100 may not be provided with the adhesive 62.

[0080] In other embodiments, the bracket 31 and the metal part 14 may also be welded, and the structural strength of welding is high. Welding can achieve electrical connection and fixed connection between the bracket 31 and the metal part 14. The embodiment of the present application does not limit the electrical connection and fixed connection between the bracket 31 and the metal part 14, and can be set as needed.

[0081] The embodiment of the present application utilizes the existing opening and closing mechanism 30 of the charging box 100 to achieve electrical connection between the metal part 14 and the circuit board 40. The conductive member 61 for electrical connection is arranged in the gap 123 of the upper shell 10. The electrical connector 70 is flexibly arranged in the unoccupied space of the lower shell 20 due to its own flexibility. There is no need to increase the size of the charging box 100, which is conducive to the charging box 100 having good performance and is conducive to the miniaturization of the charging box 100.

[0082] like Fig.11 As shown, Fig.11 Schematic diagram of a part of the structure of the opening and closing mechanism 30. The spacing L between the hole wall of the through hole 313 of the bracket 31 and the rotating shaft 32 is less than or equal to 0.05 mm. The rotating shaft 32 passes through the through hole 313 and is rotatably connected and electrically connected to the bracket 31. When the spacing between the hole wall of the through hole 313 and the rotating shaft 32 is too large, it is difficult to electrically connect the bracket 31 and the rotating shaft 32. By setting the spacing between the hole wall of the through hole 313 and the rotating shaft 32 to be less than or equal to 0.05 mm, it is beneficial to achieve electrical connection between the bracket 31 and the rotating shaft 32.

[0083] See also Fig. 9 , Fig.12 and Fig.13 , Fig.12 yes Figure 2 The schematic diagram of a part of the structure of the charging box 100 is shown. Fig.13 yes Fig.12 An enlarged view of the structure at H of the charging box 100 shown. In some embodiments, an electrical connection component 90 can be provided between the hole wall of the through hole 313 of the bracket 31 in the opening and closing mechanism 30 and the rotating shaft 32 to achieve a good electrical connection between the bracket 31 and the rotating shaft 32. Optionally, the electrical connection component 90 between the hole wall of the through hole 313 and the rotating shaft 32 may include a conductive silicone ring. Since the conductive silicone ring is elastic, the step gap between the bracket 31 and the rotating shaft 32 can be dynamically adjusted without affecting the rotation between the bracket 31 and the rotating shaft 32. In addition, the electrical connection between the bracket 31 and the rotating shaft 32 can be achieved through the conductive properties of the silicone ring, thereby improving the reliability of the electrical connection between the bracket 31 and the rotating shaft 32. In some other embodiments, the electrical connection component 90 may also include conductive foam, conductive cloth, etc.

[0084] See also Fig.13In some other embodiments, the opening and closing mechanism 30 may further include a torsion spring 35, which may be used to increase the resistance during the opening and closing of the charging box, and enhance the user's feel when opening or closing the charging box. The upper shell 10 can be grounded through the torsion spring 35 of the opening and closing mechanism 30. In some embodiments, one side of the torsion spring 35 contacts the bracket 31 to achieve electrical connection. Optionally, the torsion spring 35 and the bracket 31 can be electrically connected through a conductive silicone ring. Optionally, the torsion spring 35 and the bracket 31 can also be electrically connected through conductive foam or conductive cloth. Exemplarily, the bracket 31 can be provided with a mounting hole 36, and one side of the torsion spring 35 is located in the mounting hole 36 to achieve contact and electrical connection between the torsion spring 35 and the mounting hole 36, or a conductive silicone ring, conductive foam or conductive cloth is provided between the hole wall of the mounting hole 36 and one side of the torsion spring 35. The other side of the torsion spring 35 can be electrically connected to the electrical connector 70, which is electrically connected to the circuit board 40; or, the other side of the torsion spring 35 can be electrically connected to the lower housing 20, which is electrically connected to the electrical connector 70, which is electrically connected to the circuit board 40. In this way, the upper housing 10 can be grounded through the path where the bracket 31 and the torsion spring 35 are electrically connected to the electrical connector 70 of the lower housing 20.

[0085] like Fig.14 As shown, Fig.14 3 is a schematic diagram of the structure of another charging box 100. In some possible embodiments, the opening and closing mechanism 30 may include a rotating shaft 33, and the opening and closing mechanism 30 may not be provided with a bracket, which is conducive to the miniaturization and lightness of the charging box 100. In order to distinguish it from the rotating shaft 32 in the opening and closing mechanism 30 provided with a bracket 31, Fig.14 The rotating shaft 33 in the embodiment is referred to as the first rotating shaft 33. It can be understood that Fig.14 The layer structure of the upper shell 10 and the arrangement of the metal part 14, the structure of the lower shell 20, the circuit board 40, and the arrangement of the electrical connector 70 of the charging box 100 shown can be referred to the aforementioned embodiments and will not be repeated here.

[0086] The first rotating shaft 33 may be fixed to the lower shell 20 via a colloid structure 34 , the first rotating shaft 33 may also be fixed to the lower shell 20 via a buckle or other fixing structures, or the first rotating shaft 33 may also be welded to the lower shell 20 .

[0087] The upper shell 10 is rotatably connected to the first rotating shaft 33, and the upper shell 10 can rotate relative to the first rotating shaft 33 so that the upper shell 10 can be opened or closed relative to the lower shell 20. Exemplarily, a connecting hole 15 is provided on one side of the upper shell 10 connected to the first rotating shaft 33, and the first rotating shaft 33 passes through the connecting hole 15 on the upper shell 10. When the charging box 100 is closed, the rotating shaft 32 can be seen from the outside, that is, the opening and closing mechanism 30 is exposed. The metal part of the upper shell 10 is electrically connected to the first rotating shaft 33.

[0088] When the opening and closing mechanism 30 includes the first rotating shaft 33 and the opening and closing mechanism 30 may not be provided with the bracket 31, the grounding path of the metal part of the upper shell 10 may be: the metal part of the upper shell 10, the first rotating shaft 33, the electrical connector and the circuit board are electrically connected in sequence, or the metal part of the upper shell 10, the first rotating shaft 33, the lower shell 20, the electrical connector and the circuit board are electrically connected in sequence. The electrical connection between the first rotating shaft 33 and the lower shell 20 may be by conductive glue or welding, etc., which is not limited in the embodiment of the present application.

[0089] See also Fig.14 The opening and closing mechanism 30 includes a first rotating shaft 33. When the opening and closing mechanism 30 is not provided with a bracket 31, the distance between the hole wall of the connecting hole 15 and the first rotating shaft 33 is less than or equal to 0.05 mm, which is conducive to achieving electrical connection between the metal part 14 of the upper shell 10 and the first rotating shaft 33, and achieving grounding of the metal part 14.

[0090] In other possible embodiments, the first rotating shaft 33 may be fixed to the upper housing 10 , the lower housing 20 is provided with a connecting hole 15 , the first rotating shaft 33 passes through the connecting hole 15 , and the metal part 14 is electrically connected to the rotating shaft 33 .

[0091] It can be understood that the opening and closing mechanism 30 in the embodiment of the present application is only a schematic representation, and the opening and closing mechanism 30 can also be other structures. For example, the opening and closing mechanism 30 can be a sliding mechanism so that the upper shell 10 can be opened or closed relative to the lower shell 20 by sliding. The embodiment of the present application does not limit the specific structure of the opening and closing mechanism 30.

[0092] The embodiment of the present application electrically connects the metal part 14 of the upper shell 10 and the circuit board 40 in the lower shell 20 through the opening and closing mechanism 30, so as to realize the grounding of the metal part 14 and avoid the influence of the electrostatic discharge of the metal part 14 on the performance of the charging box 100. The grounding method of the embodiment of the present application is simple, and the internal structure of the charging box 100 and the internal space of the charging box 100 are fully and reasonably utilized to realize the grounding of the metal part 14. The embodiment of the present application has a variety of grounding paths, which can be set according to the internal space structure of the charging box 100.

[0093] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A charging box (100), characterized in that: It comprises an upper housing (10), a lower housing (20), an opening and closing mechanism (30) and a circuit board (40); The opening and closing mechanism (30) connects the upper shell (10) and the lower shell (20), and is capable of opening or closing the upper shell (10) relative to the lower shell (20); the upper shell (10) and the lower shell (20) jointly enclose a receiving cavity (310), and the receiving cavity (310) is used to receive the earphone (200); The upper housing (10) comprises a metal part (14), and the circuit board (40) is located inside the lower housing (20); The metal part (14) is electrically connected to the opening and closing mechanism (30), and the opening and closing mechanism (30) is electrically connected to the circuit board (40), so as to achieve grounding of the metal part (14).

2. The charging box (100) according to claim 1, characterized in that: The opening and closing mechanism (30) comprises a bracket (31) and a rotating shaft (32); the bracket (31) is fixedly connected to the upper shell (10) and is rotationally connected to the lower shell (20) via the rotating shaft (32); the bracket (31) is electrically connected to the metal part (14) and is electrically connected to the circuit board (40).

3. The charging box (100) according to claim 2, characterized in that: The rotating shaft (32) is fixedly connected to the lower housing (20), the bracket (31) is rotatably connected to the rotating shaft (32), and the bracket (31) is electrically connected to the circuit board (40) through the rotating shaft (32).

4. The charging box (100) according to claim 3, characterized in that: The bracket (31) comprises a through hole (313), the rotating shaft (32) passes through the through hole (313), and the distance between the hole wall of the through hole (313) and the rotating shaft (32) is less than or equal to 0.05 mm.

5. The charging box (100) according to claim 2, characterized in that: The charging box (100) comprises a conductive member (61), and the conductive member (61) electrically connects the bracket (31) and the metal part (14).

6. The charging box (100) according to claim 5, characterized in that: The number of the conductive members (61) is at least two, and at least two of the conductive members (61) are arranged at intervals.

7. The charging box (100) according to claim 5, characterized in that: The charging box (100) includes an adhesive component (62), and the adhesive component (62) is fixedly connected to the bracket (31) and the upper shell (10), and the connection strength of the adhesive component (62) is greater than the connection strength of the conductive component (61).

8. The charging box (100) according to claim 7, characterized in that: The number of the adhesive parts (62) is at least two, at least two of the adhesive parts (62) are located at intervals on the edge of the bracket (31), and the conductive part (61) is located between two adjacent adhesive parts (62).

9. The charging box (100) according to claim 2, characterized in that: The charging box (100) comprises an electrical connector (70), and the electrical connector (70) electrically connects the bracket (31) and the circuit board (40).

10. The charging box (100) according to claim 1, characterized in that: The opening and closing mechanism (30) comprises a first rotating shaft (33), the first rotating shaft (33) is fixed to the lower shell (20), the upper shell (10) is provided with a connecting hole (15), the first rotating shaft (33) passes through the connecting hole (15), and the metal part (14) is electrically connected to the first rotating shaft (33), or the first rotating shaft (33) is fixed to the upper shell (10), the lower shell (20) is provided with a connecting hole (15), the first rotating shaft (33) passes through the connecting hole (15), and the metal part (14) is electrically connected to the first rotating shaft (33).

11. The charging box (100) according to claim 2 or 10, characterized in that: The charging box (100) includes an electrical connector (70), and the electrical connector (70) electrically connects the rotating shaft (32) and the circuit board (40), or the electrical connector (70) electrically connects the lower shell (20) and the circuit board (40).

12. The charging box (100) according to claim 11, characterized in that: The electrical connector (70) is a flexible circuit board, a spring sheet or a thimble.

13. The charging box (100) according to claim 2, characterized in that: The lower housing (20) is electrically connected to the circuit board (40); The charging box (100) includes a conductive contact (80), which is fixed to the portion of the bracket (31) located on the lower shell (20). When the upper shell (10) is closed relative to the lower shell (20), the conductive contact (80) contacts the lower shell (20) and electrically connects the bracket (31) and the lower shell (20). When the upper shell (10) is opened relative to the lower shell (20), the conductive contact (80) is separated from the lower shell (20).

14. An earphone assembly (300), characterized in that: It comprises an earphone (200) and a charging box (100) as described in any one of claims 1 to 13, wherein the earphone (200) is located in a receiving cavity (310) of the charging box (100), and the charging box (100) is used to store and charge the earphone (200).

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