CN221283308U - Charging box and earphone components - Google Patents

Abstract

The present application discloses a charging box and an earphone assembly. The charging box includes a first shell, a second shell and a rotating assembly. The first shell and the second shell are rotatably connected through the rotating assembly to have an open cover state and a closed cover state; the rotating assembly includes a rotating connector and a rotating shaft; the rotating connector includes a rotating part, a fixed part and a connecting part, the rotating part is located in the installation space of the first shell, and is rotatably connected to the first shell through the rotating shaft, the fixed part is fixedly connected to the second shell, the connecting part connects the rotating part and the fixed part, the connecting part is partially arranged around the rotating part, the connecting part includes a first surface arranged back to the rotating part, the first surface is an arc surface, and the center line of the first surface coincides with the center line of the rotating shaft. The above-mentioned charging box has a long service life.

Description

Charging box and earphone components

Technical Field

The present application relates to the field of audio technology, and in particular to a charging box and an earphone assembly.

Background technique

Wireless earphones are becoming more and more popular among consumers because they do not use traditional wires and are more convenient to use. Related products of wireless earphones, such as earphone components, usually consist of earphones and charging boxes. The charging box contains a battery that can charge the earphones to meet the needs of users for long-term use.

Among them, the charging box realizes the rotation connection between the box cover and the box body through the rotating assembly, thereby completing the opening and closing of the cover. However, in the current rotating connection structure of the charging box, it is usually necessary to set a receiving space on the box body or the box cover, and the receiving space is used to receive the rotating member in the closed state. However, in the open state, since the rotating member rotates out of the receiving space, a large gap is formed between the rotating member and the box cover or the box body, resulting in the exposure of the receiving space, and dust or foreign matter can easily enter the receiving space, which makes it impossible for the charging box to close normally, and it is also easy to damage the rotating connection structure of the charging box, resulting in a reduced service life of the charging box.

Utility Model Content

The present application provides a charging box and an earphone assembly, and the charging box has a long service life.

In a first aspect, an embodiment of the present application provides a charging box. The charging box includes a first shell, a second shell, and a rotating assembly, and the first shell and the second shell are rotatably connected by the rotating assembly to have an open cover state and a closed cover state. When the charging box is in the open cover state, the earphones can be placed in the charging box or taken out of the charging box. When the charging box is in the closed cover state, the earphones placed in the charging box can be protected by the charging box. If the earphones are low on power, they can also be charged by the charging box.

The rotating assembly includes a rotating connection member and a rotating shaft; the rotating connection member includes a rotating part, a fixed part and a connecting part. The rotating part is located in the installation space of the first shell and is rotatably connected to the first shell through the rotating shaft. The fixed part is fixedly connected to the second shell. The connecting part connects the rotating part and the fixed part. The connecting part is partially arranged around the rotating part. The connecting part includes a first surface arranged back to the rotating part. The first surface is an arc surface. The center line of the first surface coincides with the center line of the rotating shaft.

In this embodiment, since the first surface of the connecting part coincides with the center line of the rotating shaft, during the rotation of the second shell relative to the first shell, the gap width between the first surface and the opening formed by the installation space on the first mating surface is equal, and is an equal gap. Therefore, in the open state of the charging box, a large gap will not be formed between the rotating connecting part and the first mating surface due to the rotating connecting part rotating out of the installation space. The installation space is still a shielded space, and external dust or foreign matter is not easy to enter the installation space, thereby ensuring the normal closing action of the charging box, and making the rotating connection structure of the charging box highly reliable and having a long service life.

In a possible embodiment, the first shell of the charging box includes a first mating surface facing the second shell, and the installation space forms an opening at the first mating surface; the wall of the installation space includes a first wall, the first wall is connected to the first mating surface, the first wall is arranged facing the first surface and spaced apart from the first surface, the first wall is an arc surface, and the center line of the first wall coincides with the center line of the first surface.

In this embodiment, since the first wall and the first surface are concentric arcs, the distance between the two can be set to be very small, which is beneficial to reduce the risk of dust or foreign matter entering the installation space when the cover is open, ensure the reliability of the rotating connection structure of the charging box, and extend the service life.

In a possible embodiment, the first shell of the charging box includes a first mating surface facing the second shell, and the installation space forms an opening on the first mating surface; the first surface includes an active area; in the open cover state, the active area is located in the installation space and directly below the first mating surface; in the closed cover state, the active area moves out of the installation space from the opening.

In this embodiment, since the first surface is provided with an active area, the active area is directly below the first mating surface in the closed state. At this time, the installation space can be arranged using the space below the first mating surface, and the gap between the first mating surface and the first surface is smaller.

In a possible implementation, the first shell of the charging box includes a first mating surface facing the second shell, and the installation space forms an opening at the first mating surface; in the open cover state, the first surface is partially located in the installation space, or the edge of the first surface is flush with the opening.

In this embodiment, the relative positional relationship between the first surface and the first shell in the open cover state is designed to further ensure that the gap between the rotating connector and the first shell is small.

In a possible implementation, the connection portion of the charging box further includes a second surface and a third surface, the second surface and the third surface are connected to both sides of the first surface in a manner opposite to each other, and the second surface and the third surface are both perpendicular to the center line of the rotating shaft.

In this embodiment, since the second surface and the third surface are both perpendicular to the center line of the rotating shaft, during the process of rotation of the second shell relative to the first shell, the gap widths between the second surface and the third surface and the opening formed by the installation space on the first mating surface are equal, and are equal gaps. Therefore, when the charging box is in the open state, a large gap will not be formed between the rotating connection and the first mating surface due to the rotating connection rotating out of the installation space. The installation space is still a shielded space, and external dust or foreign matter is not easy to enter the installation space, thereby ensuring the normal closing action of the charging box, and making the rotating connection structure of the charging box highly reliable and having a long service life.

In a possible implementation, the charging box further includes a spring, the spring is located in the installation space, one end of the spring is connected to the first shell, and the other end of the spring is connected to the connecting part.

In this embodiment, the charging box can be provided with a spring structure, a connection position between the spring and the first shell, and a connection position between the spring and the rotating connecting piece, so that when the second shell is opened to a first angle from a closed box state relative to the first shell, the spring provides resistance to opening the cover; when the second shell continues to be opened from the first angle to an open cover state relative to the first shell, the spring provides a driving force to open the cover; when the second shell is closed to a second angle from an open cover state relative to the first shell, the spring provides resistance to closing the cover; when the second shell continues to be closed from the second angle to a closed cover state relative to the first shell, the spring provides a driving force to close the cover, thereby providing a feel for opening and closing the cover and helping to maintain the stability of the open and closed cover states.

In a possible embodiment, the connecting portion of the charging box includes an arc-shaped arm and a connecting block, the arc-shaped arm portion is arranged around the rotating portion, the first end of the arc-shaped arm is connected to the fixed portion, and the connecting block is connected between the rotating portion and the second end of the arc-shaped arm; the spring is connected to the second end of the arc-shaped arm, or is connected to an end of the connecting block close to the arc-shaped arm.

In this embodiment, the distance between the connection position between the spring and the connection part and the center line of the rotating shaft is relatively large, so that the force of the spring can generate a larger torque to provide a larger resistance and/or thrust.

In a possible implementation, the connecting block of the charging box includes two limiting surfaces, the arrangement direction of the two limiting surfaces is parallel to the center line of the rotating shaft, and the two limiting surfaces are respectively provided on opposite sides of the connecting block; the wall surface of the installation space includes a second wall surface; in the open cover state, the limiting surface abuts against the second wall surface; in the closed cover state, the limiting surface is separated from the second wall surface.

In this embodiment, when the cover is opened, the limiting surface is used to support the second wall surface so that the rotating connection member and the first shell maintain a stable relative position relationship, thereby ensuring that the opening angle of the charging box is fixed and preventing the second shell from continuing to rotate, making the charging box structure stable in the open state and providing a better experience.

In a possible embodiment, the connecting portion of the charging box has a stop surface, which is arranged at one end of the connecting portion away from the fixing portion; the wall surface of the installation space includes a third wall surface; the stop surface gradually approaches the third wall surface during the process of relative closure of the first shell and the second shell, and faces the third wall surface in the closed box state.

In this embodiment, when the rotating component is assembled with the first shell but the second shell has not yet been assembled, the action of the spring will cause the rotating connection member to deflect relative to the expected position. By setting a stop surface and a third wall surface, the stop surface is abutted against the third wall surface during this process, and the rotating connection member is stopped to avoid a large angle of deflection, thereby reducing the difficulty of subsequent assembly of the second shell and improving assembly efficiency.

In a possible implementation, the connection portion of the charging box includes an arc-shaped arm and a connection block, the arc-shaped arm portion is arranged around the rotating portion, the first end of the arc-shaped arm is connected to the fixed portion, and the connection block is connected between the rotating portion and the second end of the arc-shaped arm. The stop surface is arranged at the second end of the arc-shaped arm or the connection block.

In a possible implementation manner, the rotating shaft includes a first end portion; the first end portion is fixedly connected to the first shell body by an adhesive, a sealing member or an interference fit.

In this embodiment, the connection reliability between the rotating shaft and the first shell is ensured by the fixed connection between the first end of the rotating shaft and the first shell.

In a possible embodiment, the rotating shaft includes a first end portion, and a plurality of protrusions are arranged on the circumference of the rotating shaft at intervals; or, the circumference of the first end portion is provided with protrusions arranged circumferentially on the circumference of the rotating shaft. In this embodiment, the first end portion is provided with a plurality of protrusions to form a spline structure, thereby enhancing the connection strength between the rotating shaft and the first housing.

In a possible implementation, the rotating shaft of the charging box also includes a second end portion, the second end portion is arranged opposite to the first end portion, and a chamfer is provided between an end face of the second end portion and a surrounding side face.

In this embodiment, since the second end portion is provided with a chamfer, when inserting the rotating shaft into the first lining and the rotating portion, the second end portion of the rotating shaft can be extended into the relevant structure first to reduce the difficulty of insertion.

In a possible implementation, the rotating portion of the charging box is provided with a shaft hole and two recessed grooves, the two recessed grooves are respectively arranged at both ends of the shaft hole along the axial direction of the shaft hole and are connected to the shaft hole; the shaft is inserted into the shaft hole, and the rotating assembly also includes two rubber rings, the two rubber rings are respectively located in the two recessed grooves, and are both sleeved on the shaft.

In this embodiment, the charging box can prevent the second shell from shaking left and right and being miscentered relative to the first shell by providing a rubber ring, and a matching structure between the rubber ring, the rotating shaft and the rotating part. At the same time, it can also provide a damping feeling when the second shell rotates relative to the first shell, so as to improve the user experience.

In a possible implementation, the first shell of the charging box includes a first outer shell and a first lining, the first lining is installed on the inner side of the first outer shell, and the installation space is partially located in the first lining and partially located in the first outer shell.

In this embodiment, the first lining can be fixedly connected to the first shell by an adhesive (such as glue, etc.) and/or a snap-fit structure. The first shell can increase the size of the installation space by setting grooves and/or through holes, so that the rotating component can be arranged using part of the space of the first shell, which is conducive to the miniaturized design of the charging box.

In a possible embodiment, the first shell of the charging box is a box body, and the second shell is a box cover; the first shell is provided with a groove, the opening of the groove is located on the outer surface of the first shell, the installation space forms a connecting port on the bottom wall of the groove, and part of the rotating part, part of the first lining and part of the rotating shaft are exposed relative to the bottom wall of the groove through the connecting port; the first shell also includes a decorative sheet, the decorative sheet is installed in the groove, and the outer surface of the decorative sheet is spliced with the outer surface of the first shell into a continuous appearance surface.

In this embodiment, the first shell can be provided with grooves and/or through holes to increase the size of the installation space, so that the rotating component can be arranged using part of the space of the first shell, which is conducive to the miniaturized design of the charging box.

In a possible implementation, a recessed space is provided in the fixed portion of the charging box, and the fixed portion is fixedly connected to the second shell body via a rubber component, and the rubber component is at least partially located in the recessed space.

In this embodiment, the bonding area between the fixing portion and the second shell is relatively large, the connection between the two is highly firm, and the connection is reliable.

In a possible implementation, the fixed portion of the charging box is in the shape of a flat plate, the recessed space includes at least one strip groove, and the opening of the strip groove is located on the outer surface of the fixed portion.

In this embodiment, the provision of the strip-shaped groove can increase the connection area between the fixing portion and the rubber member, thereby increasing the connection reliability between the fixing portion and the second housing.

In a possible embodiment, the fixed portion of the charging box extends along the first direction, and the fixed portion includes a first plate surface and a second plate surface arranged back to back; there are multiple strip grooves, each of which extends along the second direction, and the second direction is perpendicular to or intersects with the first direction; some of the strip grooves are located on the first plate surface, and other parts of the strip grooves are located on the second plate surface; in the first direction, the strip grooves located on the first plate surface and the strip grooves located on the second plate surface are arranged alternately.

In this embodiment, by designing the arrangement of the strip grooves, the fixing portion can have a relatively reliable structural strength while having a large bonding area.

In one possible embodiment, the second shell of the charging box is provided with a plug-in slot, and the fixing part is fixed to the plug-in slot; the plug-in slot includes a first side wall surface and a second side wall surface that are opposite to each other, the first side wall surface is opposite to the first plate surface, and the second side wall surface is opposite to the second plate surface; the second shell also includes at least one first rib and at least one second rib, the first rib is protruding from the first side wall surface, and the second rib is protruding from the second side wall surface, and the extension directions of the first rib and the second rib both intersect with the strip groove.

In this embodiment, the connection between the fixing part and the second housing can be made more reliable by arranging a rubber member connected between the first side wall, the first rib, the first plate surface and the groove wall of the strip groove, and connected between the second side wall, the second rib, the second plate surface and the groove wall of another strip groove. In addition, the positional relationship that the extending directions of the first rib and the second rib intersect with the strip groove can further improve the connection reliability.

In a possible implementation, one or more claws are provided at the end of the fixed portion of the charging box away from the connecting portion; the second shell is provided with a plug-in slot, and one or more card blocks are provided in the plug-in slot; the fixed portion is fixed to the plug-in slot, and the claws and the card blocks are arranged alternately.

In this embodiment, the plurality of clamping blocks can be connected to the plurality of first ribs and the plurality of second ribs in a one-to-one correspondence to increase the overall structural strength. At this time, the rubber member can also be connected between the clamping claw and the clamping block to make the connection between the fixing portion and the second housing more reliable.

In a possible implementation, when the charging box is in a closed state, an outer surface of the first shell and an outer surface of the second shell are joined to form an exterior surface of the charging box, and the rotating assembly is hidden in an inner space of the exterior surface of the charging box.

In this embodiment, the charging box is provided with a hidden rotating assembly so that the rotating assembly is completely covered by the outer surface of the first shell and the outer surface of the second shell, thereby reducing the appearance control points of the charging box during assembly, thereby reducing the difficulty of assembly and improving assembly efficiency and yield. In addition, the lines of the appearance surface of the charging box in the embodiment of the present application are also relatively simple, which is conducive to improving the aesthetics and user experience.

In a possible implementation, a parting surface between the first shell and the second shell of the charging box is perpendicular to a height direction of the charging box, or is arranged at an angle to the height direction of the charging box.

In this embodiment, by designing the parting surface between the first shell and the second shell to be at an angle with the height direction of the charging box, the user can more easily take the earphones in the charging box when the cover is open, thereby improving the user experience.

In a possible implementation, the first shell of the charging box is a box body, and the second shell is a box cover; or, the first shell is a box cover, and the second shell is a box body; the charging box also includes a battery, and the battery is installed in the box body.

In this embodiment, the charging box contains a battery that can charge the earphones stored in the box to meet the user's needs for long-term use.

In a second aspect, an embodiment of the present application provides an earphone assembly. The earphone assembly includes an earphone and any of the above-mentioned charging boxes. In this embodiment, the charging box of the earphone assembly has a long service life, which optimizes the user's product experience.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to 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.

FIG1 is a schematic diagram of the structure of an earphone assembly provided by an embodiment of the present application in some embodiments;

FIG2 is a schematic diagram of the structure of a charging box of the earphone assembly shown in FIG1 ;

FIG3A is a schematic diagram of the structure of the charging box shown in FIG2 in another use state;

FIG3B is a schematic diagram of the structure of the charging box shown in FIG3A at another angle;

FIG4 is a schematic diagram of the exploded structure of the charging box shown in FIG3B ;

FIG5A is a schematic structural diagram of the rotating connecting member shown in FIG4 ;

FIG5B is a schematic structural diagram of the rotating connecting member shown in FIG5A at another angle;

FIG6 is a schematic structural diagram of the spring shown in FIG4 ;

FIG7 is a schematic structural diagram of the rotating shaft shown in FIG4 ;

FIG8 is a schematic structural diagram of the first liner shown in FIG4 ;

FIG9 is a schematic diagram of the assembly structure of the first liner and the rotating assembly shown in FIG4 ;

FIG10 is a schematic diagram of a cross-sectional structure of the structure shown in FIG9 taken along the line A-A;

FIG11 is a schematic diagram of a cross-sectional structure of the structure shown in FIG9 taken along the B-B line;

FIG12 is a schematic diagram of the internal structure of a portion of the charging box shown in FIG3B ;

FIG13 is a schematic diagram of the internal structure of the assembly of the second housing and the rotating connecting member shown in FIG3B;

FIG14 is a schematic diagram of the cross-sectional structure of the charging box shown in FIG3B taken along the line C-C;

FIG15 is a schematic diagram of the internal structure of the assembly structure of the rotating connecting member shown in FIG5A and the second housing shown in FIG13;

FIG16 is a schematic diagram of a cross-sectional structure of the charging box shown in FIG2 taken along D-D;

FIG17 is a schematic cross-sectional view of the structure shown in FIG9 taken along line I-I in the cover-opening state;

FIG18 is a schematic diagram of the structure of an earphone assembly provided by an embodiment of the present application in some embodiments;

FIG19 is a schematic diagram of the structure of the charging box of the earphone assembly shown in FIG18;

FIG20 is a schematic diagram of the structure of the charging box shown in FIG19 in another use state;

FIG21 is a schematic diagram of the exploded structure of the charging box shown in FIG20 ;

FIG22 is a schematic structural diagram of the rotating connecting member shown in FIG21;

FIG23 is a schematic structural diagram of the first liner shown in FIG21;

FIG24 is a schematic diagram of a portion of the structure of the charging assembly shown in FIG20;

FIG25 is a schematic diagram of the cross-sectional structure of the charging box shown in FIG20 taken along the line E-E;

FIG26 is a schematic diagram of the cross-sectional structure of the charging box shown in FIG19 taken along the F-F line;

FIG27 is a schematic diagram of the cross-sectional structure of the charging box shown in FIG20 taken along the G-G line;

Figure 28 is a schematic diagram of the cross-sectional structure of the charging box shown in Figure 19 taken along H-H.

Detailed ways

The technical solution in the embodiment of the present application will be described below in conjunction with the accompanying drawings. In the description of the embodiment of the present application, unless otherwise specified, "/" means or, for example, A/B can mean A or B; "and/or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiment of the present application, "multiple" means two or more than two.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

The directional terms mentioned in the embodiments of the present application, such as "front", "back", "left", "right", "inside", "outside", "side", "top", "bottom", "up", "down", etc., are only references to the directions of the drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense. For example, "connected" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. Among them, "electrical connection" means that electrical signals can be conducted between each other.

The embodiments of the present application provide an earphone assembly, and mainly describe the implementation structure of the earphone assembly in two embodiments.

First embodiment

Please refer to Figures 1 to 3A in combination. Figure 1 is a structural schematic diagram of the earphone assembly provided in some embodiments of the present application, Figure 2 is a structural schematic diagram of the charging box of the earphone assembly shown in Figure 1, and Figure 3A is a structural schematic diagram of the charging box shown in Figure 2 in another usage state.

In some embodiments, the present application provides an earphone assembly 100, the earphone assembly 100 includes a charging box 10 and earphones 20, and the charging box 10 is used to store the earphones 20. The charging box 10 may also be called a charging compartment or an earphone box. The charging box 10 contains a battery, which can charge the earphones 20 stored in the box to meet the needs of users for long-term use. Exemplarily, the charging box 10 may be provided with two earphone slots 10a, and the two earphone slots 10a may be used to place left and right earphones, respectively. Among them, the two earphone slots 10a may be symmetrical structures or the same structure, and the embodiments of the present application do not strictly limit the specific structure of the two earphone slots 10a.

Exemplarily, the charging box 10 includes a first shell 1, a second shell 2 and a rotating assembly 3, and the first shell 1 is rotatably connected to the second shell 2 by the rotating assembly 3 to have an open cover state and a closed cover state. The first shell 1 is a box body, and the second shell 2 is a box cover. Among them, the charging box 10 in Figure 2 is in an open cover state, at this time, the earphone 20 can be placed in the charging box 10, or taken out of the charging box 10. The charging box 10 in Figure 3A is in a closed cover state, at this time, the earphone 20 placed in the charging box 10 can obtain the protection of the charging box 10. In some examples, when the earphone 20 is not fully charged, the earphone 20 can be charged by the charging box 10 by placing it in the charging box 10.

Please refer to FIG. 2 , FIG. 3A and FIG. 3B in combination. FIG. 3B is a schematic diagram of the structure of the charging box 10 shown in FIG. 3A at another angle.

In some embodiments, in the closed box state, the outer surface 1a of the first shell 1 and the outer surface 2a of the second shell 2 are spliced together to form the appearance of the charging box 10, and the rotating component 3 is hidden in the inner space of the appearance of the charging box 10. In this embodiment, the rotating component 3 is a hidden shaft structure, which is completely covered by the outer surface 1a of the first shell 1 and the outer surface 2a of the second shell 2. It can be understood that the situation where the outer surface 1a of the first shell 1 and the outer surface 2a of the second shell 2 are spliced includes the situation where the two are in contact or there is a small gap between the two.

It can be understood that the current implementation forms of the rotating opening and closing cover structure of the charging box are various. The rotating opening and closing cover structure is usually provided with an external rotor assembly, which connects the upper shell and the lower shell of the charging box so that the upper shell can rotate relative to the lower shell to open or close the cover. In this scheme, the upper shell or the lower shell usually needs to be provided with a shaft space at a position adjacent to the parting surface to provide installation space and activity space for the external rotor assembly. Since the shaft space is provided at a position adjacent to the parting surface, and usually extends to the parting surface and the outer surface of the upper shell or the lower shell, a corresponding gap is formed. However, the scheme of using the external rotor assembly will lead to an increase in the number of gaps and step differences between the upper shell, the lower shell and the external rotor assembly. For example, there is a plane matching relationship and a side matching relationship between the external rotor assembly and the upper shell or the lower shell, and between the external rotor assembly and the decorative sheet. The plane matching relationship needs to control the step difference problem, and the side matching relationship needs to control the gap. Therefore, in the assembly process of the charging box, there are many appearance control points and the production line inspection manpower is large, which leads to an increase in the difficulty of whole machine assembly and reduces the whole machine assembly efficiency and yield. At the same time, the lines of the outer contour of the charging box formed by the shell, lower shell, decorative sheet and external rotor assembly are not simple enough, which affects the appearance and usage experience.

In this embodiment, the charging box 10 is provided with a hidden rotating assembly 3, so that the rotating assembly 3 is completely covered by the outer surface 1a of the first shell 1 and the outer surface 2a of the second shell 2, thereby reducing the appearance control points of the charging box 10 during assembly, thereby reducing the difficulty of assembly and improving assembly efficiency and yield. In addition, the lines of the appearance surface of the charging box 10 in the embodiment of the present application are also relatively simple, which is conducive to improving the aesthetics and user experience.

For the purpose of description below, the charging box 10 may be defined as having a length direction X, a width direction Y, and a height direction Z that are perpendicular to each other. The size of the charging box 10 in the height direction Z is greater than the size in the width direction Y. In the closed state, the first shell 1 and the second shell 2 may be roughly arranged in the height direction Z of the charging box 10. The rotation center of the second shell 2 relative to the first shell 1 may be parallel to the length direction X of the charging box 10.

In some embodiments, the parting surface 102 between the first shell 1 and the second shell 2 may be arranged at an angle to the height direction Z of the charging box 10. The parting surface 102 is located at the contact position between the first shell 1 and the second shell 2. In the height direction Z of the charging box 10, the side of the first shell 1 close to the rotating component 3 may be higher than the side away from the rotating component 3.

In this embodiment, the parting surface 102 between the first shell 1 and the second shell 2 is designed to be at an angle to the height direction Z of the charging box 10, so that the user can more easily take the earphones 20 in the charging box 10 when the cover is opened, thereby improving the user experience.

In some other embodiments, the parting surface 102 between the first shell 1 and the second shell 2 may also be perpendicular to the height direction Z of the charging box 10 .

For example, as shown in Figures 1 and 2, the first shell 1 includes a first mating surface 121 facing the second shell 2. The first mating surface 121 is designed to match the parting surface 102. The first mating surface 121 can be designed as an inclined surface designed at an angle to the height direction Z of the charging box 10. When the earphone 20 is placed in the earphone slot 10a, more of the earphone 20 is exposed, which is more convenient for users to take.

It is understandable that in some embodiments of the present application, the appearance surface of the charging box 10 may include a plane, and the plane may be located on the back side of the charging box 10. In some other embodiments of the present application, the appearance surface of the charging box 10 may also not include a plane, and the whole may present a curved surface. The embodiments of the present application do not strictly limit the specific shape of the appearance surface of the charging box 10.

Please refer to FIG. 2 , FIG. 3B and FIG. 4 in combination. FIG. 4 is a schematic diagram of the exploded structure of the charging box 10 shown in FIG. 3B .

In some embodiments, the first shell 1 may include a first shell 11, a first lining 12 and a decorative sheet 13, the first lining 12 is installed on the inner side of the first shell 11, and the decorative sheet 13 may be installed on the outer side of the first shell 11. The second shell 2 may include a second shell 21 and a second lining 22, and the second lining 22 is installed on the inner side of the second shell 21. The rotating assembly 3 may include a rotating connector 31, a rotating shaft 32, a spring 33 and two rubber rings 34. The rotating assembly 3 may be partially installed on the first shell 1 and partially installed on the second shell 2. Among them, the charging box 10 may also include a battery 4, a circuit board 5 and a bracket 6. The battery 4, the circuit board 5 and the bracket 6 can be installed in the first shell 1.

Please refer to FIG. 5A and FIG. 5B , FIG. 5A is a schematic structural diagram of the rotating connecting member 31 shown in FIG. 4 , and FIG. 5B is a schematic structural diagram of the rotating connecting member 31 shown in FIG. 5A at another angle.

In some embodiments, the rotating connector 31 includes a rotating portion 311 , a fixing portion 312 , and a connecting portion 313 . The connecting portion 313 connects the rotating portion 311 and the fixing portion 312 .

Exemplarily, the rotating part 311 is provided with a rotating shaft hole 3111 and two sinking grooves 3112, and the two sinking grooves 3112 are respectively arranged at both ends of the rotating shaft hole 3111 along the axial direction of the rotating shaft hole 3111, and are connected to the rotating shaft hole 3111. The rotating part 311 can be a continuous structure, or can include two parts, which are arranged at intervals along the axial direction of the rotating shaft hole 3111. The embodiment of the present application does not strictly limit the specific implementation structure of the rotating part 311.

In some embodiments, the connection portion 313 may be partially disposed around the rotating portion 311. The connection portion 313 includes a first surface 3131 disposed away from the rotating portion 311, the first surface 3131 is an arc surface, and the center line of the first surface 3131 coincides with the center line 31-O of the rotating shaft hole 3111. Exemplarily, the connection portion 313 may also include a second surface 3132 and a third surface 3133, the second surface 3132 and the third surface 3133 are disposed away from each other and connected to both sides of the first surface 3131, and the second surface 3132 and the third surface 3133 are both perpendicular to the center line 31-O of the rotating shaft hole 3111. Among them, the second surface 3132 is parallel to the third surface 3133, and both are perpendicular to the first surface 3131. Exemplarily, the connecting portion 313 may further include a fourth surface 3134, the fourth surface 3134 is disposed toward the rotating portion 311, the fourth surface 3134 is disposed opposite to the first surface 3131, and the fourth surface 3134 connects the second surface 3132 and the third surface 3133. The fourth surface 3134 is a surface that is recessed in a direction away from the rotating portion 311, so as to form an escape space between the fourth surface 3134 and the rotating portion 311. For example, the fourth surface 3134 may also be an arc surface. In some examples, the center line of the fourth surface 3134 may also coincide with the center line 31-O of the shaft hole 3111.

Exemplarily, the connecting portion 313 may include an arcuate arm 313a and a connecting block 313b, wherein the arcuate arm 313a may be arranged partially around the rotating portion 311, a first end of the arcuate arm 313a is connected to the fixing portion 312, and the connecting block 313b is connected between the rotating portion 311 and the second end of the arcuate arm 313a.

Among them, the first surface 3131 and the fourth surface 3134 can be located on the inner side and outer side of the arc arm 313a respectively, and the second surface 3132 and the third surface 3133 can be located partially on the end surface of the arc arm 313a and partially on the surface of the connecting block 313b.

The connecting block 313b may include a first portion and a second portion, the first portion and the second portion are arranged at intervals, and the arrangement direction is parallel to the center line 31-O of the rotating shaft hole 3111. The first portion and the second portion may connect two portions of the rotating portion 311, respectively.

Exemplarily, the connection block 313b may include two limiting surfaces 3135, the arrangement direction of the two limiting surfaces 3135 is parallel to the center line 31-O of the shaft hole 3111, and are respectively arranged on opposite sides of the connection block 313b. For example, one limiting surface 3135 may be located on the side of the first part facing away from the second part, and the other limiting surface 3135 may be located on the side of the second part facing away from the first part. In some other embodiments, only one limiting surface 3135 may be provided.

Exemplarily, the connection portion 313 may also have a stop surface 3136, and the stop surface 3136 is provided at one end of the connection portion 313 away from the fixing portion 312. For example, the stop surface 3136 may be provided at the second end of the arc-shaped arm 313a. In some other embodiments, the stop surface 3136 may also be provided at the connection block 313b, and the specific position of the stop surface 3136 is not strictly limited in the embodiment of the present application.

Exemplarily, the rotating connecting member 31 may also have a connecting hole 314, and the connecting hole 314 may be located at an end of the connecting portion 313 away from the fixing portion 312. For example, the connecting hole 314 may be located at the second end of the arc-shaped arm 313a. In some other embodiments, the connecting hole 314 may also be located at an end of the connecting block 313b close to the arc-shaped arm 313a. The specific position of the connecting hole 314 is not strictly limited in the embodiments of the present application.

In some embodiments, the fixing portion 312 may be provided with a recessed space, and the recessed space may be recessed from the outer surface of the fixing portion 312 toward the inside of the fixing portion 312. The recessed space may include at least one groove and/or at least one through hole.

For example, the fixing portion 312 may be in the shape of a plate, wherein the fixing portion 312 may extend along a first direction, and the fixing portion 312 includes a first plate surface 3121 and a second plate surface 3122 that are disposed opposite to each other.

The recessed space may include at least one strip groove 3123, the opening of the strip groove 3123 is located on the outer surface of the fixing portion 312, for example, the opening of the strip groove 3123 may be located on the first plate surface 3121, the second plate surface 3122 and/or the side surface of the fixing portion 312. The side surface of the fixing portion 312 connects the first plate surface 3121 and the second plate surface 3122.

In some examples, the number of the strip grooves 3123 may be multiple, and each strip groove 3123 extends along the second direction, and the second direction is perpendicular to or intersects the first direction. Among them, some of the strip grooves 3123 in the multiple strip grooves 3123 may be located on the first plate surface 3121, and another part of the strip grooves 3123 may be located on the second plate surface 3122. In the first direction, the strip grooves 3123 located on the first plate surface 3121 and the strip grooves 3123 located on the second plate surface 3122 are arranged alternately. In other examples, in the first direction, the strip grooves 3123 located on the first plate surface 3121 and the strip grooves 3123 located on the second plate surface 3122 may be at least partially arranged opposite to each other. In other examples, the multiple strip grooves 3123 may be located on the same side of the fixing portion 312, for example, all located on the first plate surface 3121 or all located on the second plate surface 3122. The specific arrangement positions of the multiple strip grooves 3123 are not strictly limited in the embodiments of the present application.

The strip grooves 3123 may be straight strips or wavy strips, and the embodiment of the present application does not strictly limit the shape of the strip grooves 3123 .

The recessed space may further include one or more glue holes, which may be provided on the first plate surface 3121 and/or the second plate surface 3122. The glue hole may be a through hole that penetrates the fixing portion 312 in the thickness direction of the fixing portion 312, or a blind hole that does not penetrate the fixing portion 312. The embodiment of the present application does not strictly limit the shape, size, number, arrangement, etc. of the glue hole.

It can be understood that the recessed space may include at least one of the strip groove 3123 and the glue hole, and may also include spaces of other shapes. The embodiment of the present application does not strictly limit the specific composition of the recessed space.

Exemplarily, the end of the fixing portion 312 away from the connecting portion 313 may be provided with one or more claws 3124. For example, the embodiment shown in FIG5A and FIG5B takes four claws 3124 as an example for illustration, and through holes are formed between the claws 3124, and the through holes penetrate the space of the fixing portion 312 in the thickness direction of the fixing portion 312.

Please refer to FIG. 6 , which is a schematic structural diagram of the spring 33 shown in FIG. 4 .

In some embodiments, the spring 33 may adopt a torsion spring structure, and the spring 33 may include a torsion spring transverse axis 331, two spring coils 332, and two torsion spring hanging legs 333. The two spring coils 332 are respectively connected to the two ends of the torsion spring transverse axis 331, and the two torsion spring hanging legs 333 are respectively connected to the two spring coils 332. In this case, the torsion spring transverse axis 331 forms one end of the spring 33, and the two torsion spring hanging legs 333 form the other end of the spring 33.

The embodiment of the present application does not strictly limit the number of turns and the spacing between each turn of the spring coil 332. In other embodiments, the spring 33 may also adopt other structures, and the embodiment of the present application does not strictly limit the specific structure of the spring 33.

Please refer to FIG. 7 , which is a schematic structural diagram of the rotating shaft 32 shown in FIG. 4 .

In some embodiments, the rotating shaft 32 includes a first end 321 and a second end 322, and the second end 322 is disposed opposite to the first end 321. At this time, the first end 321 and the second end 322 are arranged in the axial direction of the rotating shaft 32.

Exemplarily, the circumference of the first end 321 may be provided with a plurality of protrusions 3211, and the plurality of protrusions 3211 are arranged at intervals from each other in the circumference of the rotating shaft 32. In this case, the plurality of protrusions 3211 are arranged around the center line 323 of the rotating shaft 32. The plurality of protrusions 3211 may protrude relative to the circumferential side of the shaft body of the rotating shaft 32, and the plurality of protrusions 3211 cooperate with the first end 321 to form a spline structure. In some other embodiments, the circumference of the first end 321 may also be provided with protrusions arranged circumferentially in the circumference of the rotating shaft 32. In this case, the protrusions are continuously arranged around the center line 323 of the rotating shaft 32.

Exemplarily, a chamfer 3221 is provided between the end surface and the peripheral side surface of the second end portion 322. At this time, the diameter of at least a portion of the second end portion 322 decreases in a direction away from the first end portion 321.

Please refer to FIG. 8 , which is a schematic structural diagram of the first liner 12 shown in FIG. 4 .

In some embodiments, the first shell 1 is provided with an installation space 14, and the installation space 14 may be entirely or mostly located in the first liner 12. Exemplarily, the first liner 12 may also be provided with two plug holes 122, and the two plug holes 122 are located on both sides of the installation space 14 and connected to the installation space 14. The center lines of the two plug holes 122 are collinearly arranged.

The first mating surface 121 of the first shell 1 is located at the first lining 12. The installation space 14 forms an opening 123 at the first mating surface 121. The opening 123 may include a first edge 1231, a second edge 1232 and a third edge 1233, the second edge 1232 and the third edge 1233 are arranged opposite to each other, and the first edge 1231 connects the second edge 1232 and the third edge 1233.

Exemplarily, the wall surface of the installation space 14 may include a first wall surface 141, and the first wall surface 141 is connected to the first mating surface 121. In this case, the first mating surface 121 is connected to the first edge 1231. The first wall surface 141 is a curved surface.

Exemplarily, the wall surface of the installation space 14 may further include a second wall surface 142 . There may be two second wall surfaces 142 , and the two second wall surfaces 142 are respectively located on both sides of the first wall surface 141 .

Exemplarily, the wall surface of the installation space 14 may further include a third wall surface 143 . The third wall surface 143 may be formed on a stop block of the first liner 12 .

Exemplarily, the installation space 14 may include a card slot 144 .

Please refer to Figures 9 to 11, Figure 9 is a schematic diagram of the assembly structure of the first lining 12 and the rotating component 3 shown in Figure 4, Figure 10 is a schematic diagram of the cross-sectional structure of the structure shown in Figure 9 cut along A-A, and Figure 11 is a schematic diagram of the cross-sectional structure of the structure shown in Figure 9 cut along B-B.

In some embodiments, the rotating portion 311 of the rotating connector 31 is located in the installation space 14 of the first shell 1, and is rotatably connected to the first shell 1 via the rotating shaft 32. For example, the rotating shaft 32 can be inserted into the first lining 12 and the rotating portion 311 of the rotating connector 31. Among them, the connecting portion 313 of the rotating connector 31 is at least partially located in the installation space 14. The rotating connector 31 extends out of the installation space 14 from the opening 123 of the first mating surface 121, so that the fixing portion 312 is located outside the first lining 12.

Exemplarily, as shown in FIG. 11 and FIG. 5A and FIG. 7 , the rotating shaft 32 is inserted into the rotating shaft hole 3111 of the rotating portion 311. The rotating shaft 32 is coaxially matched with the rotating shaft hole 3111. The center line 323 of the rotating shaft 32 coincides with the center line 31-O of the rotating shaft hole 3111 of the rotating portion 311. At this time, the structure that is parallel to, coincides with, is perpendicular to, or has other relative positional relationships with the center line 31-O of the rotating shaft hole 3111 also has the same positional relationship with the center line 323 of the rotating shaft 32.

The two rubber rings 34 of the rotating assembly 3 can be respectively located in the recessed grooves 3112 of the rotating part 311, and are both sleeved on the rotating shaft 32. At this time, through the matching structure of the two rubber rings 34 and the rotating part 311 and the matching structure of the rotating shaft 32, the rotating part 311 can be prevented from shaking left and right and not being centered relative to the first inner lining 12, and damping can also be provided when the rotating part 311 rotates relative to the first inner lining 12.

In some other embodiments, the number of the rubber ring 34 may be one. In some other embodiments, the rotating assembly 3 may not be provided with the rubber ring 34. Correspondingly, the rotating portion 311 may not be provided with the sinking groove 3112.

Exemplarily, as shown in Figure 11 and Figure 7 and Figure 8, the shaft 32 is also inserted into the two insertion holes 122 of the first liner 12. The first end 321 of the shaft 32 can be located in one of the insertion holes 122, and the second end 322 can be located in the other end.

In some examples, the first end 321 of the rotating shaft 32 can be interference fit with the hole wall of the plug hole 122 through a spline structure, and the first end 321 is fixed to the first liner 12. In other words, the first end 321 and the first shell 1 can be fixedly connected through an interference fit. In some other embodiments, the first end 321 and the first shell 1 can also be fixedly connected through an adhesive or a seal. It is understandable that in some other embodiments, the first end 321 can not only be interference fit with the first liner 12 using a spline structure or the like, but can also be fixedly connected through an adhesive at the same time.

Exemplarily, since the second end portion 322 is provided with a chamfer 3221 , when inserting the rotating shaft 32 into the first lining 12 and the rotating portion 311 , the second end portion 322 of the rotating shaft 32 can be first extended into the relevant structure to reduce the difficulty of insertion.

Exemplarily, as shown in FIG. 10 , FIG. 5A and FIG. 6 , the spring 33 is located in the installation space 14, one end of the spring 33 is connected to the first liner 12, and the other end of the spring 33 is connected to the connecting portion 313 of the rotating connecting member 31. Exemplarily, the torsion spring transverse axis 331 can be located in the slot 144 of the first liner 12, and the two torsion spring hanging legs 333 are respectively installed in the two connecting holes 314 of the connecting portion 313. At this time, the spring 33 is connected to the second end of the arc-shaped arm 313a. In other embodiments, when the position of the connecting hole 314 is located at one end of the connecting block 313b close to the arc-shaped arm 313a, the spring 33 is connected to one end of the connecting block 313b close to the arc-shaped arm 313a.

In some other embodiments, the spring 33 may also be connected to the second end of the arc-shaped arm 313a or to an end of the connecting block 313b close to the arc-shaped arm 313a through other structures, and the embodiments of the present application do not strictly limit this.

Please refer to Figure 12, which is a schematic diagram of the internal structure of a portion of the charging box 10 shown in Figure 3B.

In some embodiments, the first lining 12 of the first shell 1 is fixed to the inner side of the first shell 11. The first lining 12 can be fixedly connected to the first shell 11 by an adhesive (such as glue, etc.) and/or a snap-fit structure. The installation space 14 of the first shell 1 can be partially located in the first lining 12 and partially located in the first shell 11. The first shell 11 can be provided with grooves and/or through holes to increase the size of the installation space 14, so that the rotating assembly 3 can be arranged using part of the space of the first shell 11, which is conducive to the miniaturized design of the charging box 10.

In which, the first shell 11 can be provided with a groove 111, the opening of the groove 111 is located on the outer surface of the first shell 11, the installation space 14 forms a connecting port at the bottom wall of the groove 111, and part of the rotating part 311, part of the first lining 12 and part of the rotating shaft 32 are exposed relative to the bottom wall of the groove 111 through the connecting port.

The decorative sheet 13 can be installed in the groove 111, and the outer surface of the decorative sheet 13 is spliced with the outer surface of the first shell 11 to form a continuous appearance surface. It can be understood that the outer surface of the decorative sheet 13 and the outer surface of the first shell 11 are spliced in a situation where the two are in contact or there is a small gap between them.

Exemplarily, the bracket 6 can be located between the first shell 11 and the first lining 12, and fixedly connected to the first lining 12 or the first shell 11, and the battery 4 can be installed on the bracket 6. At this time, the battery 4 is installed in the box body of the charging box 10.

Exemplarily, the circuit board 5 can be located between the first shell 11 and the first lining 12, and fixedly connected to the bracket 6. Among them, the circuit board 5 can be provided with multiple devices, including but not limited to the main control chip and its matching devices, connection ports, etc., and the multiple devices are electrically connected to the circuit board 5. Among them, the circuit board 5 can also be fixed with structures such as charging shrapnel or charging spring needle for charging the earphone 20. It can be understood that the first shell 1 can also install more components of the charging box 10, such as Hall sensors, indicator lights, buttons, antenna modules, charging modules, magnetic modules, etc., and the embodiments of the present application are not strictly limited to this.

In some other embodiments, the charging box 10 may not include the bracket 6. The battery 4 and/or the circuit board 5 may be installed on the first lining 12, or on other structures, which is not strictly limited in the embodiment of the present application.

Please refer to FIG. 13 , which is a schematic diagram of the internal structure of the second housing 2 and the rotating connector 3 as shown in FIG. 3B .

In some embodiments, the second lining 22 of the second shell 2 is fixed to the inner side of the second outer shell 21. The second lining 22 may be fixedly connected to the second outer shell 21 by an adhesive (such as glue, etc.) and/or a snap-fit structure.

Exemplarily, the second shell 2 is provided with a plug-in slot 23. Among them, the main part of the plug-in slot 23 can be located in the second shell 21, and the other part can be formed by the second shell 21 and the second lining 22. In some other embodiments, the plug-in slot 23 can also be completely located in the second shell 21, or completely located in the second lining 22, or formed by the second shell 21 and the second lining 22. The specific position of the plug-in slot 23 is not strictly limited in the embodiment of the present application.

Exemplarily, the insertion slot 23 includes a first side wall surface 231 and a second side wall surface 232 that are oppositely disposed, and also includes a bottom wall surface 234 connected between the first side wall surface 231 and the second side wall surface 232. The second housing 2 may further include at least one first rib 241 and at least one second rib 242, wherein the first rib 241 is convexly disposed on the first side wall surface 231, and the second rib 242 is convexly disposed on the second side wall surface 232.

In some examples, the number of first ribs 241 may be multiple, the multiple first ribs 241 are arranged at intervals from each other, and the extension direction of each first rib 241 may intersect with the arrangement direction of the multiple first ribs 241. In some examples, the number of second ribs 242 may be multiple, the multiple second ribs 242 are arranged at intervals from each other, and the extension direction of each second rib 242 may intersect with the arrangement direction of the multiple second ribs 242.

The second housing 2 may further include one or more blocks 243, one or more blocks 243 may be disposed in the insertion slot 23, and the blocks 243 may be protrudingly fixed to the bottom wall surface 234. In some examples, there may be multiple blocks 243, and the multiple blocks 243 may be spaced apart from each other. In some examples, the multiple blocks 243 may be connected to the multiple first ribs 241 and the multiple second ribs 242 in a one-to-one correspondence to increase the overall structural strength.

Please refer to Figures 13 to 15. Figure 14 is a schematic diagram of the cross-sectional structure of the charging box 10 shown in Figure 3B taken along C-C, and Figure 15 is a schematic diagram of the internal structure of the assembly structure of the rotating connecting member 31 shown in Figure 5A and the second shell 2 shown in Figure 13.

In some embodiments, the fixing portion 312 of the rotating connector 31 is fixedly connected to the second housing 2. Exemplarily, the fixing portion 312 is fixed to the plug-in slot 23 of the second housing 2. The fixing portion 312 is fixedly connected to the second housing 2 by a rubber member (not shown in the figure), and the rubber member is at least partially located in the recessed space of the fixing portion 312. At this time, the bonding area between the fixing portion 312 and the second housing 2 is large, the connection between the two is strong, and the connection is reliable.

The claws 3124 of the fixing portion 312 are arranged alternately with the blocks 243 of the second housing 2. For example, in the arrangement direction of the claws 3124 of the fixing portion 312, a plurality of claws 3124 and a plurality of blocks 243 are arranged alternately one by one. At this time, the rubber member can also be connected between the claws 3124 and the blocks 243, so that the connection between the fixing portion 312 and the second housing 2 is more reliable.

The first side wall surface 231 of the second shell 2 is arranged opposite to the first plate surface 3121 of the fixing portion 312, the second side wall surface 232 of the second shell 2 is arranged opposite to the second plate surface 3122 of the fixing portion 312, and the extension directions of the first rib 241 and the second rib 242 are both intersected with the strip groove 3123 of the fixing portion 312. At this time, the plastic piece can also be connected between the first side wall surface 231, the first rib 241, the first plate surface 3121 and the groove wall of the strip groove 3123, and between the second side wall surface 232, the second rib 242, the second plate surface 3122 and the groove wall of another strip groove 3123, so that the connection between the fixing portion 312 and the second shell 2 is more reliable.

In some examples, the extension direction of the first rib 241 and the second rib 242 can be parallel to the plugging direction of the plugging slot 23, that is, parallel to the direction in which the fixing portion 312 is inserted into the plugging slot 23, so that the fixing portion 312 can be more comfortably inserted into the plugging slot 23.

Please refer to Figures 14 and 16 in combination. Figure 16 is a schematic diagram of the cross-sectional structure of the charging box 10 shown in Figure 2 taken along D-D.

In the embodiment of the present application, since the rotating portion 311 of the rotating connecting member 31 is rotatably connected to the first shell 1 through the rotating shaft 32, and the fixed portion 312 is fixedly connected to the second shell 2, the second shell 2 can rotate relative to the first shell 1 to open and close the cover, thereby having an open cover state and a closed cover state.

In the open cover state, the rotating connector 31 rotates out of the installation space 14, and in the closed cover state, the rotating connector 31 rotates into the installation space 14. It can be understood that in the embodiment of the present application, the rotating connector 31 rotates out of or into the installation space 14, which means that part of the structure of the rotating connector 31 rotates out of or into the installation space 14, rather than being limited to the entire structure.

Among them, the center line of the first surface 3131 of the connection part 313 of the rotating connection member 31 coincides with the center line 323 of the rotating shaft 32. In this embodiment, since the first surface 3131 of the connection part 313 coincides with the center line 323 of the rotating shaft 32, during the rotation of the second shell 2 relative to the first shell 1, the gap width between the first surface 3131 and the opening 123 formed on the first matching surface 121 of the installation space 14 is equal, and is an equal gap. Therefore, in the open state of the charging box 10, a large gap will not be formed between the rotating connection member 31 and the first matching surface 121 due to the rotating connection member 31 rotating out of the installation space 14, and the installation space 14 is still a space that is shielded, and external dust or foreign matter is not easy to enter the installation space 14, thereby ensuring the normal closing action of the charging box 10, so that the rotating connection structure of the charging box 10 has high reliability and a long service life.

In addition, the second shell 2 may include a second mating surface 221 facing the first shell 1. Since the fixing portion 312 of the rotating connecting member 31 is fixedly connected to the second shell 2, the size of the gap between the second mating surface 221 and the rotating connecting member 31 will not change during the rotation of the second shell 2 relative to the first shell 1, and a large gap will not be formed in the open state of the charging box 10. Therefore, the risk of external dust or foreign matter entering the plug-in slot 23 can also be reduced, thereby ensuring structural reliability and extending service life.

Exemplarily, the first side 1231 of the opening 123 is disposed close to the first surface 3131 , and the first side 1231 of the opening 123 may be parallel to the first surface 3131 , so as to better maintain a smaller gap therebetween.

Exemplarily, the first wall 141 of the installation space 14 is arranged facing the first surface 3131 and is spaced apart from the first surface 3131, and the center line of the first wall 141 coincides with the center line of the first surface 3131. In this embodiment, since the first wall 141 and the first surface 3131 are concentric arcs, the distance between the two can be set to be very small, which is conducive to reducing the risk of dust or foreign matter entering the installation space 14 in the open cover state, ensuring the reliability of the rotating connection structure of the charging box 10, and extending the service life. In some other embodiments, the first wall 141 can also adopt other structural designs (for example, designed as an inclined surface, a step surface, a special-shaped curved surface, etc.) to ensure that in the closed cover state, a gap is formed between the first wall 141 and the first surface 3131, and the two do not contact.

Exemplarily, the first surface 3131 may include an active area (not specifically shown in the figure). In the open cover state, the active area is located in the installation space 14 and directly below the first mating surface 121; in the closed cover state, the active area is moved out of the installation space 14 by the opening 123. It can be understood that the active area of the first surface 3131 refers to the area of the first surface 3131 that is located outside the installation space 14 when the rotating connection member 31 is rotated out of the installation space 14, and is located in the installation space 14 when the rotating connection member 31 is rotated into the installation space 14 and is directly below the first mating surface 121. Among them, the active area is located directly below the first mating surface 121, which means that in the height direction Z of the charging box 10, the positional relationship in which the active area is covered by the first mating surface 121.

In this embodiment, since the first surface 3131 is provided with an active area, the active area is directly below the first mating surface 121 in the closed state. At this time, the installation space 14 can be arranged using the space below the first mating surface 121, and the gap between the first mating surface 121 and the first surface 3131 is smaller.

Exemplarily, in the open cover state, a portion of the first surface 3131 is located in the installation space 14, or an edge of the first surface 3131 is flush with the opening 123. In this embodiment, the relative positional relationship between the first surface 3131 and the first housing 1 in the open cover state is designed to further ensure that the gap between the rotating connector 31 and the first housing 1 is small.

Exemplarily, as shown in Fig. 9, the second side 1232 of the opening 123 is disposed close to the second surface 3132 of the connecting portion 313 of the rotating connecting member 31, and the third side 1233 of the opening 123 is disposed close to the third surface 3133 of the connecting portion 313 of the rotating connecting member 31. The second surface 3132 and the third surface 3133 are both perpendicular to the center line 323 of the rotating shaft 32.

In this embodiment, since the second surface 3132 and the third surface 3133 are both perpendicular to the center line 323 of the rotating shaft 32, during the rotation of the second shell 2 relative to the first shell 1, the gap widths between the second surface 3132 and the third surface 3133 and the opening 123 formed on the first mating surface 121 of the installation space 14 are equal, and are equal gaps. Therefore, in the open state of the charging box 10, a large gap will not be formed between the rotating connection 31 and the first mating surface 121 due to the rotating connection 31 rotating out of the installation space 14. The installation space 14 is still a shielded space, and external dust or foreign matter is not easy to enter the installation space 14, thereby ensuring the normal closing action of the charging box 10, so that the rotating connection structure of the charging box 10 has high reliability and a long service life.

In addition, referring to FIG. 11 again, by providing the matching structure of two rubber rings 34 and the rotating part 311 of the rotating connector and the matching structure with the rotating shaft 32, it is possible to prevent the second shell 2 from shaking left and right and being misaligned relative to the first shell 1, and to provide a damping feeling during the rotation of the second shell 2 relative to the first shell 1, so as to improve the user experience.

Please refer to Fig. 17, which is a schematic diagram of the cross-sectional structure of the structure shown in Fig. 9 taken along I-I in the open cover state.

In some embodiments, in the open cover state, the limiting surface 3135 of the connecting portion 313 of the rotating connecting member 31 abuts against the second wall surface 142 of the first shell 1 ; in the closed cover state, the limiting surface 3135 is separated from the second wall surface 142 .

In this embodiment, when the cover is opened, the limiting surface 3135 is used to abut against the second wall 142, so that the rotating connection member 31 and the first shell 1 maintain a stable relative position relationship, thereby ensuring that the opening angle of the charging box 10 is fixed and preventing the second shell 2 from continuing to rotate, so that the charging box 10 in the open state has a stable structure and a better user experience.

Exemplarily, referring to FIG. 5B and FIG. 9 , the arrangement direction of the two limiting surfaces 3135 of the connecting portion 313 of the rotating connecting member 31 is parallel to the center line 31-O of the rotating shaft hole 3111, that is, parallel to the center line 323 of the rotating shaft 32. The two limiting surfaces 3135 are roughly distributed on both sides of the connecting portion 313, and the two limiting surfaces 3135 are arranged in a one-to-one correspondence with the two second wall surfaces 142 of the second shell 2. Among them, in the open cover state, the two limiting surfaces 3135 can respectively abut the two second wall surfaces 142, so that the abutting structure between the connecting portion 313 and the first shell 1 is more stable, which is conducive to the charging box 10 to maintain a stable open cover state.

Please refer to Figures 14 and 16 again. In the embodiment of the present application, one end of the spring 33 is connected to the first shell 1, and the other end is connected to the rotating connection member 31, so that it can provide resistance or driving force during the rotation of the rotating connection member 31 relative to the first shell 1, that is, during the rotation of the second shell 2 relative to the first shell 1.

The structure of the spring 33, the connection position of the spring 33 and the first housing 1, and the connection position of the spring 33 and the rotating connecting member 31 can be set so that when the second housing 2 is opened from the closed box state to the first housing 1 by a first angle, the spring 33 provides a resistance to opening the cover, and when the second housing 2 continues to open from the first angle to the open cover state relative to the first housing 1, the spring 33 provides a driving force to open the cover, and when the second housing 2 is closed from the open cover state to the first housing 1 by a second angle, the spring 33 provides a resistance to closing the cover, and when the second housing 2 continues to close from the second angle to the closed cover state relative to the first housing 1, the spring 33 provides a driving force to close the cover, thereby providing a feel for opening and closing the cover and helping to maintain the stability of the open cover state and the closed cover state. The first angle and the second angle can be about half of the maximum opening angle, and the embodiment of the present application does not strictly limit this.

Among them, since the spring 33 is connected to the second end of the arc-shaped arm 313a of the connecting portion 313 or the connecting block 313b is close to one end of the arc-shaped arm 313a (see Figure 10), the distance between the connecting position of the spring 33 and the connecting portion 313 and the center line of the rotating shaft is larger, so that the force of the spring 33 can generate a larger torque to provide a larger resistance and/or thrust.

In some embodiments, as shown in FIG. 14 and FIG. 16 , the connection portion 313 of the rotating connection member 31 is provided with a stop surface 3136, and the wall surface of the installation space 14 of the first housing 1 includes a third wall surface 143. The stop surface 3136 gradually approaches the third wall surface 143 during the process of the first housing 1 and the second housing 2 being relatively closed, and faces the third wall surface 143 in the closed box state. In the closed state, the distance between the stop surface 3136 and the third wall surface 143 is relatively small.

Among them, when the rotating component 3 is assembled with the first shell 1 but the second shell 2 has not been assembled, the action of the spring 33 will cause the rotating connection member 31 to deflect relative to the expected position. By setting the stop surface 3136 and the third wall surface 143, the stop surface 3136 is abutted against the third wall surface 143 during this process, and the rotating connection member 31 is stopped to avoid a large angle of deflection, thereby reducing the difficulty of subsequent assembly of the second shell 2 and improving assembly efficiency.

In the embodiment of the present application, the charging box 10 connects the first shell 1 and the second shell 2 through the rotating assembly 3. The rotating assembly 3 uses a rotating connector 31, a spring 33 and a rotating shaft 32 to ensure the relative rotation, rotation feel and limit of the first shell 1 and the second shell 2. The structure is simple, easy to implement, easy to assemble, and low cost. In some other embodiments, the rotating assembly 3 may not use the spring 33. In some other embodiments, the rotating connector 31 and the rotating shaft 32 may also be an integrally formed structural member.

In the first embodiment, the first shell 1 is a box body, and the second shell 2 is a box cover.

The second embodiment in which the first shell 1 is a box cover and the second shell 2 is a box body is described below.

Second embodiment

Please refer to Figures 18 to 20. Figure 18 is a structural schematic diagram of the earphone assembly 100 provided in some embodiments of the present application, Figure 19 is a structural schematic diagram of the charging box 10 of the earphone assembly 100 shown in Figure 18, and Figure 20 is a structural schematic diagram of the charging box 10 shown in Figure 19 in another usage state.

In some embodiments, the present application provides an earphone assembly 100, the earphone assembly 100 includes a charging box 10 and earphones 20, and the charging box 10 is used to store the earphones 20. The charging box 10 may also be called a charging compartment or an earphone box. The charging box 10 contains a battery, which can charge the earphones 20 stored in the box to meet the needs of users for long-term use. Exemplarily, the charging box 10 may be provided with two earphone slots 10a, and the two earphone slots 10a may be used to place left and right earphones, respectively. Among them, the two earphone slots 10a may be symmetrical structures or the same structure, and the embodiments of the present application do not strictly limit the specific structure of the two earphone slots 10a.

Exemplarily, the charging box 10 includes a first shell 1, a second shell 2 and a rotating assembly 3, and the first shell 1 and the second shell 2 are rotatably connected through the rotating assembly 3 to have an open cover state and a closed cover state. In this embodiment, the first shell 1 is a box cover, and the second shell 2 is a box body.

In FIG19 , the charging box 10 is in an open state, at which point the earphone 20 can be placed in or taken out of the charging box 10. In FIG20 , the charging box 10 is in a closed state, at which point the earphone 20 placed in the charging box 10 can be protected by the charging box 10. In some examples, when the earphone 20 is not fully charged, the earphone 20 can be placed in the charging box 10 and the charging box 10 can start charging the earphone 20.

In some embodiments, in the closed box state, the outer surface 1a of the first shell 1 and the outer surface 2a of the second shell 2 are spliced together to form the appearance of the charging box 10, and the rotating component 3 is hidden in the inner space of the appearance of the charging box 10. In this embodiment, the rotating component 3 is a hidden shaft structure, which is completely covered by the outer surface 1a of the first shell 1 and the outer surface 2a of the second shell 2. It can be understood that the situation where the outer surface 1a of the first shell 1 and the outer surface 2a of the second shell 2 are spliced includes the situation where the two are in contact or there is a small gap between the two.

In this embodiment, the charging box 10 is provided with a hidden rotating assembly 3, so that the rotating assembly 3 is completely covered by the outer surface 1a of the first shell 1 and the outer surface 2a of the second shell 2, thereby reducing the appearance control points of the charging box 10 during assembly, thereby reducing the difficulty of assembly and improving assembly efficiency and yield. In addition, the lines of the appearance surface of the charging box 10 in the embodiment of the present application are also relatively simple, which is conducive to improving the aesthetics and user experience.

For the purpose of description below, the charging box 10 may be defined as having a length direction X, a width direction Y, and a height direction Z that are perpendicular to each other. The size of the charging box 10 in the height direction Z is greater than the size in the width direction Y. In the closed state, the first shell 1 and the second shell 2 may be roughly arranged in the height direction Z of the charging box 10. The rotation center of the second shell 2 relative to the first shell 1 may be parallel to the length direction X of the charging box 10.

In some embodiments, the parting surface 102 between the first shell 1 and the second shell 2 can be perpendicular to the height direction Z of the charging box 10. In this case, the processing difficulty of the first shell 1 and the second shell 2 is relatively small, and the product yield is relatively high. In some examples, the first shell 1 includes a first mating surface 121 facing the second shell 2, and the second shell 2 includes a second mating surface 221 facing the first shell 1. Among them, the first mating surface 121 and the second mating surface 221 can be designed as planes to reduce the difficulty of processing.

In some other embodiments, the parting surface 102 between the first shell 1 and the second shell 2 may also be set at an angle to the height direction Z of the charging box 10.

It is understandable that in some embodiments of the present application, the appearance surface of the charging box 10 may include a plane, and the plane may be located on the back side of the charging box 10. In some other embodiments of the present application, the appearance surface of the charging box 10 may also not include a plane, and the whole may present a curved surface. The embodiments of the present application do not strictly limit the specific shape of the appearance surface of the charging box 10.

Please refer to Figures 19, 20 and 21 in combination. Figure 21 is a schematic diagram of the exploded structure of the charging box 10 shown in Figure 20.

In some embodiments, the first shell 1 may include a first shell 11 and a first lining 12, and the first lining 12 is installed on the inner side of the first shell 11. The second shell 2 may include a second shell 21, a second lining 22 and a decorative sheet 25, and the second lining 22 is installed on the inner side of the second shell 21, and the decorative sheet 25 may be installed on the outer side of the second shell 21. The rotating assembly 3 may include a rotating connector 31, a rotating shaft 32 and a spring 33. The rotating assembly 3 may be partially installed on the first shell 1 and partially installed on the second shell 2. Among them, the charging box 10 may also include a battery 4 and a circuit board 5. The battery 4 and the circuit board 5 may be installed in the second shell 2.

Please refer to FIG. 22 , which is a schematic structural diagram of the rotating connecting member 31 shown in FIG. 21 .

In some embodiments, the rotating connector 31 includes a rotating portion 311 , a fixing portion 312 , and a connecting portion 313 . The connecting portion 313 connects the rotating portion 311 and the fixing portion 312 .

Exemplarily, the rotating part 311 is provided with a rotating shaft hole 3111 and a sink 3112, and the sink 3112 and the rotating shaft hole 3111 are arranged in the axial direction of the rotating shaft hole 3111 and are connected to the rotating shaft hole 3111. The rotating part 311 can be a continuous structure, or can include two parts, which are arranged at intervals along the axial direction of the rotating shaft hole 3111. The embodiment of the present application does not strictly limit the specific implementation structure of the rotating part 311.

In some embodiments, the connection portion 313 may be partially disposed around the rotating portion 311. The connection portion 313 includes a first surface 3131 disposed away from the rotating portion 311, the first surface 3131 is an arc surface, and the center line of the first surface 3131 coincides with the center line 31-O of the rotating shaft hole 3111. Exemplarily, the connection portion 313 may also include a second surface 3132 and a third surface 3133, the second surface 3132 and the third surface 3133 are disposed away from each other and connected to both sides of the first surface 3131, and the second surface 3132 and the third surface 3133 are both perpendicular to the center line 31-O of the rotating shaft hole 3111. Among them, the second surface 3132 is parallel to the third surface 3133, and both are perpendicular to the first surface 3131. Exemplarily, the connecting portion 313 may further include a fourth surface 3134, the fourth surface 3134 is disposed toward the rotating portion 311, the fourth surface 3134 is disposed opposite to the first surface 3131, and the fourth surface 3134 connects the second surface 3132 and the third surface 3133. The fourth surface 3134 is a surface that is recessed in a direction away from the rotating portion 311, so as to form an escape space between the fourth surface 3134 and the rotating portion 311. For example, the fourth surface 3134 may also be an arc surface. In some examples, the center line of the fourth surface 3134 may also coincide with the center line 31-O of the shaft hole 3111.

Exemplarily, the connecting portion 313 may include an arcuate arm 313a and a connecting block 313b, wherein the arcuate arm 313a may be arranged partially around the rotating portion 311, a first end of the arcuate arm 313a is connected to the fixing portion 312, and the connecting block 313b is connected between the rotating portion 311 and the second end of the arcuate arm 313a.

Among them, the first surface 3131 and the fourth surface 3134 can be located on the inner side and outer side of the arc arm 313a respectively, and the second surface 3132 and the third surface 3133 can be located partially on the end surface of the arc arm 313a and partially on the surface of the connecting block 313b.

Exemplarily, the connection block 313b may include two limiting surfaces 3135, the arrangement direction of the two limiting surfaces 3135 is parallel to the center line 31-O of the shaft hole 3111, and are respectively arranged on opposite sides of the connection block 313b. In some other embodiments, only one limiting surface 3135 may be provided.

Exemplarily, the connection portion 313 may also have a stop surface 3136, and the stop surface 3136 is disposed at one end of the connection portion 313 away from the fixing portion 312. For example, the stop surface 3136 may be disposed at the second end of the arc-shaped arm 313a. In some other embodiments, the stop surface 3136 may also be disposed at the connection block 313b, and the specific position of the stop surface 3136 is not strictly limited in the embodiments of the present application.

Exemplarily, the rotating connecting member 31 may also have a connecting hole 314, and the connecting hole 314 may be located at an end of the connecting portion 313 away from the fixing portion 312. For example, the connecting hole 314 may be located at an end of the connecting block 313b close to the arc-shaped arm 313a. In some other embodiments, the connecting hole 314 may also be located at the second end of the arc-shaped arm 313a. The specific position of the connecting hole 314 is not strictly limited in the embodiments of the present application.

In some embodiments, the fixing portion 312 may be provided with a recessed space (not shown in the figure), and the recessed space may be recessed from the outer surface of the fixing portion 312 to the inner portion of the fixing portion 312. The recessed space may include at least one groove and/or at least one through hole. The relevant design of the recessed space may refer to the first embodiment, and will not be repeated here.

For example, the fixing portion 312 may be in the shape of a plate, wherein the fixing portion 312 may extend along a first direction, and the fixing portion 312 includes a first plate surface 3121 and a second plate surface 3122 that are disposed opposite to each other.

Exemplarily, the end of the fixing portion 312 away from the connecting portion 313 may be provided with one or more claws 3124. For example, the embodiment shown in FIG22 is illustrated by taking four claws 3124 as an example, and through holes are formed between the claws 3124, and the through holes penetrate the space of the fixing portion 312 in the thickness direction of the fixing portion 312.

In some embodiments, as shown in FIG. 21 , the structures of the spring 33 and the rotating shaft 32 may refer to the first embodiment, and will not be described in detail here.

Please refer to FIG. 23 , which is a schematic structural diagram of the first liner 12 shown in FIG. 21 .

In some embodiments, the first shell 1 is provided with an installation space 14, and the installation space 14 may be entirely or mostly located in the first liner 12. Exemplarily, the first liner 12 may also be provided with two plug holes 122, and the two plug holes 122 are located on both sides of the installation space 14 and connected to the installation space 14. The center lines of the two plug holes 122 are collinearly arranged.

The first mating surface 121 of the first shell 1 is located at the first lining 12. The installation space 14 forms an opening 123 at the first mating surface 121. The opening 123 may include a first edge 1231, a second edge 1232 and a third edge (not shown in the figure), the second edge 1232 is arranged opposite to the third edge, and the first edge 1231 connects the second edge 1232 and the third edge.

Exemplarily, the wall surface of the installation space 14 may include a first wall surface 141, and the first wall surface 141 is connected to the first mating surface 121. In this case, the first mating surface 121 is connected to the first edge 1231. The first wall surface 141 is a curved surface.

Exemplarily, the wall surface of the installation space 14 may further include a second wall surface 142 . There may be two second wall surfaces 142 , and the two second wall surfaces 142 are respectively located on both sides of the first wall surface 141 .

Exemplarily, the wall surface of the installation space 14 may further include a third wall surface 143 . There may be two third wall surfaces 143 , and the two third wall surfaces 143 are respectively located on both sides of the first wall surface 141 .

Exemplarily, the installation space 14 may include a card slot 144 .

Please refer to Figures 22 to 24. Figure 24 is a schematic diagram of the partial structure of the charging assembly shown in Figure 20.

In some embodiments, the rotating portion 311 of the rotating connector 31 is located in the installation space 14 of the first shell 1, and is rotatably connected to the first shell 1 via the rotating shaft 32. For example, the rotating shaft 32 can be inserted into the first lining 12 and the rotating portion 311 of the rotating connector 31. Among them, the connecting portion 313 of the rotating connector 31 is at least partially located in the installation space 14. The rotating connector 31 extends out of the installation space 14 from the opening 123 of the first mating surface 121, so that the fixing portion 312 is located outside the first lining 12.

Exemplarily, the rotating shaft 32 is inserted into the rotating shaft hole 3111 of the rotating part 311. The rotating shaft 32 is coaxially matched with the rotating shaft hole 3111. The center line 323 of the rotating shaft 32 coincides with the center line 31-O of the rotating shaft hole 3111 of the rotating part 311. At this time, the structure that is parallel, coincident, perpendicular or has other relative positional relationship with the center line 31-O of the rotating shaft hole 3111 also has the same positional relationship with the center line 323 of the rotating shaft 32.

Exemplarily, the rotating shaft 32 is also inserted into the two insertion holes 122 of the first inner liner 12. The first end 321 of the rotating shaft 32 may be located in one of the insertion holes 122, and the second end 322 may be located in the other end.

In some examples, the first end 321 of the rotating shaft 32 can be interference fit with the hole wall of the plug hole 122 through a spline structure, and the first end 321 is fixed to the first liner 12. In other words, the first end 321 and the first shell 1 can be fixedly connected through an interference fit. In some other embodiments, the first end 321 and the first shell 1 can also be fixedly connected through an adhesive or a seal. It is understandable that in some other embodiments, the first end 321 can not only be interference fit with the first liner 12 using a spline structure or the like, but can also be fixedly connected through an adhesive at the same time.

Exemplarily, since the second end portion 322 is provided with a chamfer, when inserting the rotating shaft 32 into the first lining 12 and the rotating portion 311 , the second end portion 322 of the rotating shaft 32 can be first extended into the relevant structure to reduce the difficulty of insertion.

Exemplarily, the spring 33 is located in the installation space 14, one end of the spring 33 is connected to the first liner 12, and the other end of the spring 33 is connected to the connecting portion 313 of the rotating connecting member 31. Exemplarily, the transverse axis of the torsion spring can be located in the slot 144 of the first liner 12, and the two torsion spring hanging legs are respectively installed in the two connecting holes 314 of the connecting portion 313. At this time, the spring 33 is connected to one end of the connecting block 313b close to the arc-shaped arm 313a. In other embodiments, when the position of the connecting hole 314 is located at the second end of the arc-shaped arm 313a, the spring 33 is connected to one end of the second end of the arc-shaped arm 313a.

In some other embodiments, the spring 33 may also be connected to one end of the connecting block 313b close to the arc-shaped arm 313a or to the second end of the arc-shaped arm 313a through other structures, and the embodiments of the present application do not strictly limit this.

Please refer to Figures 21 and 25 in combination. Figure 25 is a schematic diagram of the cross-sectional structure of the charging box 10 shown in Figure 20 taken along E-E.

In some embodiments, the first lining 12 of the first shell 1 is fixed to the inner side of the first shell 11. The first lining 12 may be fixedly connected to the first shell 11 by an adhesive (such as glue, etc.) and/or a snap-fit structure. The installation space 14 of the first shell 1 may be partially located in the first lining 12 and partially located in the first shell 11. For example, the installation space 14 may be provided between the first lining 12 and the first shell 11. The first shell 11 may increase the size of the installation space 14 by providing grooves and/or through holes, so that the rotating assembly 3 may be arranged using part of the space of the first shell 11, which is conducive to the miniaturized design of the charging box 10.

In some embodiments, the second lining 22 of the second shell 2 is fixed to the inner side of the second outer shell 21. The second lining 22 may be fixedly connected to the second outer shell 21 by an adhesive (such as glue, etc.) and/or a snap-fit structure.

Exemplarily, the second shell 2 is provided with a plug-in slot 23. The plug-in slot 23 may be located in the second inner lining 22. In some other embodiments, the plug-in slot 23 may also be located in the second shell 21, or partially located in the second inner lining 22 and partially located in the second shell 21, or formed by the second shell 21 and the second inner lining 22. The specific position of the plug-in slot 23 is not strictly limited in the embodiment of the present application.

In some embodiments, the fixing portion 312 of the rotating connector 31 is fixedly connected to the second housing 2. Exemplarily, the fixing portion 312 is fixed to the plug-in slot 23 of the second housing 2. The fixing portion 312 is fixedly connected to the second housing 2 via a rubber member (not shown in the figure).

In this embodiment, the structure of the fixed portion 312 of the rotating connecting member 31, the plug-in slot 23 and the structure inside the plug-in slot 23, the matching structure between the fixed portion 312 and the plug-in slot 23 and the structure inside the plug-in slot 23, the matching structure between the rubber component and the fixed portion 312, the plug-in slot 23 and the structure inside the plug-in slot 23, can all be designed with reference to the first embodiment, for example, the matching structure between the claw 3124 of the fixed portion 312 and the block of the second shell 2, the relative position relationship between the strip groove of the fixed portion 312 and the first rib and the second rib, etc., will not be repeated here.

The adhesive member is at least partially located in the recessed space of the fixing portion 312. At this time, the bonding area between the fixing portion 312 and the second housing 2 is relatively large, and the connection between the two is strong and reliable.

The second housing 21 may be provided with a mounting groove 212, the decorative sheet 25 may be installed in the mounting groove 212, and the outer surface of the decorative sheet 25 is spliced with the outer surface of the first housing 11 to form a continuous appearance surface. It is understood that the outer surface of the decorative sheet 25 and the outer surface of the first housing 11 are spliced in a situation where the two are in contact or there is a small gap between the two.

Exemplarily, the second lining 22 may also be provided with a battery slot 224, and the battery 4 may be installed in the battery slot 224. At this time, the battery 4 is installed in the box body of the charging box 10.

Exemplarily, the circuit board 5 can be located between the second shell 21 and the second lining 22, and fixedly connected to the second lining 22. Among them, the circuit board 5 can be provided with multiple devices, including but not limited to the main control chip and its matching devices, connection ports, etc., and the multiple devices are electrically connected to the circuit board 5. Among them, the circuit board 5 can also be fixed with structures such as charging shrapnel or charging spring needle for charging the earphone 20. It is understandable that the second shell 2 can also install more components of the charging box 10, such as Hall sensors, indicator lights, buttons, antenna modules, charging modules, magnetic modules, etc., and the embodiments of the present application are not strictly limited to this.

Please refer to Figures 25 and 26 in combination. Figure 26 is a schematic diagram of the cross-sectional structure of the charging box 10 shown in Figure 19 taken along F-F.

In the embodiment of the present application, since the rotating portion 311 of the rotating connecting member 31 is rotatably connected to the first shell 1 through the rotating shaft 32, and the fixed portion 312 is fixedly connected to the second shell 2, the second shell 2 can rotate relative to the first shell 1 to open and close the cover, thereby having an open cover state and a closed cover state.

In the open cover state, the rotating connector 31 rotates out of the installation space 14, and in the closed cover state, the rotating connector 31 rotates into the installation space 14. It can be understood that in the embodiment of the present application, the rotating connector 31 rotates out of or into the installation space 14, which means that part of the structure of the rotating connector 31 rotates out of or into the installation space 14, rather than being limited to the entire structure.

Among them, the center line of the first surface 3131 of the connecting portion 313 of the rotating connecting member 31 coincides with the center line 323 of the rotating shaft 32. In this embodiment, since the first surface 3131 of the connecting portion 313 coincides with the center line 323 of the rotating shaft 32, during the rotation of the second shell 2 relative to the first shell 1, the gap width between the first surface 3131 and the opening 123 formed on the first matching surface 121 of the installation space 14 is equal, and is an equal gap. Therefore, in the open state of the charging box 10, a large gap will not be formed between the rotating connecting member 31 and the first matching surface 121 due to the rotating connecting member 31 rotating out of the installation space 14, and the installation space 14 is still a space that is shielded, and external dust or foreign matter is not easy to enter the installation space 14, thereby ensuring the normal closing action of the charging box 10, so that the rotating connection structure of the charging box 10 has high reliability and a long service life.

In addition, the second shell 2 may include a second mating surface 221 facing the first shell 1. Since the fixing portion 312 of the rotating connecting member 31 is fixedly connected to the second shell 2, the size of the gap between the second mating surface 221 and the rotating connecting member 31 will not change during the rotation of the second shell 2 relative to the first shell 1, and a large gap will not be formed in the open state of the charging box 10. Therefore, the risk of external dust or foreign matter entering the plug-in slot 23 can also be reduced, thereby ensuring structural reliability and extending service life.

Exemplarily, the first side 1231 of the opening 123 is disposed close to the first surface 3131 , and the first side 1231 of the opening 123 may be parallel to the first surface 3131 , so as to better maintain a smaller gap therebetween.

Exemplarily, the first wall 141 of the installation space 14 is arranged facing the first surface 3131 and is spaced apart from the first surface 3131, and the center line of the first wall 141 coincides with the center line of the first surface 3131. In this embodiment, since the first wall 141 and the first surface 3131 are concentric arcs, the distance between the two can be set to be very small, which is conducive to reducing the risk of dust or foreign matter entering the installation space 14 in the open cover state, ensuring the reliability of the rotating connection structure of the charging box 10, and extending the service life. In some other embodiments, the first wall 141 can also adopt other structural designs (for example, designed as an inclined surface, a step surface, a special-shaped curved surface, etc.) to ensure that in the closed cover state, a gap is formed between the first wall 141 and the first surface 3131, and the two do not contact.

Exemplarily, the first surface 3131 may include an active area; in the open cover state, the active area is located in the installation space 14 and directly below the first mating surface 121; in the closed cover state, the active area is moved out of the installation space 14 by the opening 123. It is understandable that the active area of the first surface 3131 refers to the area of the first surface 3131 that is located outside the installation space 14 when the rotating connection member 31 rotates out of the installation space 14, and is located inside the installation space 14 and directly below the first mating surface 121 when the rotating connection member 31 rotates into the installation space 14. Among them, the active area is located directly below the first mating surface 121, which means that in the height direction Z of the charging box 10, the positional relationship in which the active area is covered by the first mating surface 121.

In this embodiment, since the first surface 3131 is provided with an active area, the active area is directly below the first mating surface 121 in the closed state. At this time, the installation space 14 can be arranged using the space below the first mating surface 121, and the gap between the first mating surface 121 and the first surface 3131 is smaller.

Exemplarily, in the open cover state, a portion of the first surface 3131 is located in the installation space 14, or an edge of the first surface 3131 is flush with the opening 123. In this embodiment, the relative positional relationship between the first surface 3131 and the first housing 1 in the open cover state is designed to further ensure that the gap between the rotating connector 31 and the first housing 1 is small.

For example, referring to FIGS. 22 to 24 , the second side 1232 of the opening 123 is disposed close to the second surface 3132 of the connecting portion 313 of the rotating connecting member 31, and the third side of the opening 123 is disposed close to the third surface 3133 of the connecting portion 313 of the rotating connecting member 31. The second surface 3132 and the third surface 3133 are both perpendicular to the center line 323 of the rotating shaft 32.

In this embodiment, since the second surface 3132 and the third surface 3133 are both perpendicular to the center line 323 of the rotating shaft 32, during the rotation of the second shell 2 relative to the first shell 1, the gap widths between the second surface 3132 and the third surface 3133 and the opening 123 formed on the first mating surface 121 of the installation space 14 are equal, and are equal gaps. Therefore, in the open state of the charging box 10, a large gap will not be formed between the rotating connection 31 and the first mating surface 121 due to the rotating connection 31 rotating out of the installation space 14. The installation space 14 is still a shielded space, and external dust or foreign matter is not easy to enter the installation space 14, thereby ensuring the normal closing action of the charging box 10, so that the rotating connection structure of the charging box 10 has high reliability and a long service life.

Please refer to Figures 27 and 28 in combination. Figure 27 is a schematic diagram of the cross-sectional structure of the charging box 10 shown in Figure 20 taken along G-G, and Figure 28 is a schematic diagram of the cross-sectional structure of the charging box 10 shown in Figure 19 taken along H-H.

In some embodiments, in the open cover state, the limiting surface 3135 of the connecting portion 313 of the rotating connecting member 31 abuts against the second wall surface 142 of the first shell 1 ; in the closed cover state, the limiting surface 3135 is separated from the second wall surface 142 .

In this embodiment, when the cover is opened, the limiting surface 3135 is used to abut against the second wall 142, so that the rotating connection member 31 and the first shell 1 maintain a stable relative position relationship, thereby ensuring that the opening angle of the charging box 10 is fixed and preventing the second shell 2 from continuing to rotate, so that the charging box 10 in the open state has a stable structure and a better user experience.

For example, referring to Figures 22 to 24 at the same time, the arrangement direction of the two limiting surfaces 3135 of the connecting portion 313 of the rotating connecting member 31 is parallel to the center line 31-O of the rotating shaft hole 3111, that is, parallel to the center line 323 of the rotating shaft 32. The two limiting surfaces 3135 are roughly distributed on both sides of the connecting portion 313, and the two limiting surfaces 3135 are arranged in a one-to-one correspondence with the two second wall surfaces 142 of the second shell 2. Among them, in the open cover state, the two limiting surfaces 3135 can respectively abut the two second wall surfaces 142, so that the abutting structure between the connecting portion 313 and the first shell 1 is more stable, which is conducive to the charging box 10 to maintain a stable open cover state.

Please refer to Figures 25 and 26 again. In the embodiment of the present application, one end of the spring 33 is connected to the first shell 1, and the other end is connected to the rotating connection member 31, so that it can provide resistance or driving force during the rotation of the rotating connection member 31 relative to the first shell 1, that is, during the rotation of the second shell 2 relative to the first shell 1.

The structure of the spring 33, the connection position of the spring 33 and the first housing 1, and the connection position of the spring 33 and the rotating connecting member 31 can be set so that when the second housing 2 is opened from the closed box state to the first housing 1 by a first angle, the spring 33 provides a resistance to opening the cover, and when the second housing 2 continues to open from the first angle to the open cover state relative to the first housing 1, the spring 33 provides a driving force to open the cover, and when the second housing 2 is closed from the open cover state to the first housing 1 by a second angle, the spring 33 provides a resistance to closing the cover, and when the second housing 2 continues to close from the second angle to the closed cover state relative to the first housing 1, the spring 33 provides a driving force to close the cover, thereby providing a feel for opening and closing the cover and helping to maintain the stability of the open cover state and the closed cover state. The first angle and the second angle can be about half of the maximum opening angle, and the embodiment of the present application does not strictly limit this.

Among them, since the connecting block 313b of the spring 33 connected to the connecting part 313 is close to one end of the arc arm 313a or the second end of the arc arm 313a, the distance between the connection position of the spring 33 and the connecting part 313 and the center line of the rotating shaft is larger, so that the force of the spring 33 can generate a larger torque to provide greater resistance and/or thrust.

In some embodiments, as shown in FIG27 , the connection portion 313 of the rotating connection member 31 is provided with a stop surface 3136, and the wall surface of the installation space 14 of the first housing 1 includes the third wall surface 143. The stop surface 3136 gradually approaches the third wall surface 143 during the process of the first housing 1 and the second housing 2 being relatively closed, and faces the third wall surface 143 in the closed box state. In the closed state, the distance between the stop surface 3136 and the third wall surface 143 is relatively small.

Among them, when the rotating component 3 is assembled with the first shell 1 but the second shell 2 has not been assembled, the action of the spring 33 will cause the rotating connection member 31 to deflect relative to the expected position. By setting the stop surface 3136 and the third wall surface 143, the stop surface 3136 is abutted against the third wall surface 143 during this process, and the rotating connection member 31 is stopped to avoid a large angle of deflection, thereby reducing the difficulty of subsequent assembly of the second shell 2 and improving assembly efficiency.

In the second embodiment, the rotating assembly 3 may further include a rubber ring. The structure of the rubber ring and the matching structure between the rubber ring and other structural parts refer to the relevant description of the first embodiment, which will not be repeated here.

In the embodiment of the present application, the charging box 10 adopts a hidden rotating assembly 3, which connects the first shell 1 and the second shell 2 through the rotating assembly 3, which can effectively improve the product yield. In addition, the rotating assembly 3 adopts a rotating connector 31, a spring 33 and a rotating shaft 32 to ensure the relative rotation, rotation feel and limit of the first shell 1 and the second shell 2. The structure is simple, easy to implement, easy to assemble, and low cost. In addition, the rotating assembly 3 designs a special structure of the rotating connector 31, so that the charging box 10 will not produce a large gap between the rotating connector 31 and the first shell 1 and the second shell 2 when the box is opened, thereby effectively reducing the risk of dust accumulation or falling foreign objects, improving the reliability of the rotating connection structure, and extending the service life of the charging box 10.

In some other embodiments of the present application, the rotating assembly 3 may not use the spring 33 .

In some other embodiments of the present application, the rotating connector 31 and the rotating shaft 32 may also be integrally formed structural parts.

In some other embodiments of the present application, the charging box 10 may not be provided with a decorative sheet. For example, in a variation of the first embodiment, the outer surface of the first shell is a complete surface, and no groove structure is provided. That is, the decorative sheet is replaced with a part of the structure of the first shell. In a variation of the second embodiment, the outer surface of the second shell is a complete surface, and no groove structure is provided. That is, the decorative sheet is replaced with a part of the structure of the second shell.

All the above drawings are exemplary diagrams of the present application. The drawings mainly illustrate the parts of the product related to the embodiments of the present application. The product may still include other parts not shown in the drawings. In addition, the actual shape, actual position, actual size and proportion, actual structure, actual quantity, etc. of the components or structures of the product are not limited by the drawings. The above embodiments are used to illustrate the technical solution of the present application, rather than to limit it; although the present application is described in detail with reference to the above embodiments, ordinary technicians in the field should understand that it is still possible to modify the technical solutions recorded in the above embodiments, or to replace some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other, and any combination of features in different embodiments is also within the scope of protection of the present application, that is, the multiple embodiments described above can also be combined arbitrarily according to actual needs.

Claims (25)

1. A charging box for storing earphones, characterized in that the charging box comprises a first shell, a second shell and a rotating assembly, wherein the first shell and the second shell are rotatably connected through the rotating assembly to have an open cover state and a closed cover state; The rotating assembly includes a rotating connecting member and a rotating shaft; The rotating connecting member includes a rotating part, a fixed part and a connecting part. The rotating part is located in the installation space of the first shell and is rotatably connected to the first shell through a rotating shaft. The fixed part is fixedly connected to the second shell. The connecting part connects the rotating part and the fixed part. The connecting part is partially arranged around the rotating part. The connecting part includes a first surface arranged back to the rotating part. The first surface is an arc surface. The center line of the first surface coincides with the center line of the rotating shaft. 2. The charging box according to claim 1, characterized in that the first shell includes a first mating surface facing the second shell, and the installation space forms an opening on the first mating surface; The wall surface of the installation space includes a first wall surface, the first wall surface is connected to the first mating surface, the first wall surface is arranged facing the first surface and is spaced apart from the first surface, the first wall surface is an arc surface, and the center line of the first wall surface coincides with the center line of the first surface. 3. The charging box according to claim 1, characterized in that the first shell includes a first mating surface facing the second shell, and the installation space forms an opening on the first mating surface; The first surface includes an active area; In the open cover state, the active area is located in the installation space and directly below the first mating surface; In the cover-closed state, the active area moves out of the installation space through the opening. 4. The charging box according to claim 1, characterized in that the first shell includes a first mating surface facing the second shell, and the installation space forms an opening on the first mating surface; In the open cover state, the first surface portion is located in the installation space, or the edge of the first surface is flush with the opening. 5. The charging box according to claim 1 is characterized in that the connecting part also includes a second surface and a third surface, the second surface and the third surface are connected to both sides of the first surface in a manner opposite to each other, and the second surface and the third surface are both perpendicular to the center line of the rotating shaft. 6. The charging box according to any one of claims 1 to 5 is characterized in that the charging box also includes a spring, the spring is located in the installation space, one end of the spring is connected to the first shell, and the other end of the spring is connected to the connecting part. 7. The charging box according to claim 6, characterized in that the connecting portion comprises an arc-shaped arm and a connecting block, the arc-shaped arm portion is arranged around the rotating portion, the first end of the arc-shaped arm is connected to the fixed portion, and the connecting block is connected between the rotating portion and the second end of the arc-shaped arm; The spring is connected to the second end of the arc-shaped arm, or is connected to an end of the connecting block close to the arc-shaped arm. 8. The charging box according to claim 7, characterized in that the connecting block comprises two limiting surfaces, the arrangement direction of the two limiting surfaces is parallel to the center line of the rotating shaft, and are respectively arranged on opposite sides of the connecting block; The wall surface of the installation space includes a second wall surface; In the cover-open state, the limiting surface abuts against the second wall surface; in the cover-closed state, the limiting surface is separated from the second wall surface. 9. The charging box according to claim 6, characterized in that the connecting portion has a stop surface, and the stop surface is provided at an end of the connecting portion away from the fixing portion; The wall surface of the installation space includes a third wall surface; The stop surface gradually approaches the third wall surface during the process of the first shell and the second shell being relatively closed, and faces the third wall surface in the closed box state. 10. The charging box according to claim 9, characterized in that the connecting portion comprises an arc-shaped arm and a connecting block, the arc-shaped arm portion is arranged around the rotating portion, the first end of the arc-shaped arm is connected to the fixed portion, and the connecting block is connected between the rotating portion and the second end of the arc-shaped arm; The stop surface is arranged at the second end of the arc-shaped arm or the connecting block. 11. The charging box according to any one of claims 1 to 5, characterized in that the rotating shaft includes a first end; The first end portion is fixedly connected to the first shell by an adhesive, a seal or an interference fit. 12. The charging box according to any one of claims 1 to 5 is characterized in that the rotating shaft includes a first end portion, a plurality of protrusions are provided on the circumference of the first end portion, and the plurality of protrusions are arranged at intervals from each other in the circumference of the rotating shaft; or, a plurality of protrusions are provided on the circumference of the first end portion and are arranged circumferentially in the circumference of the rotating shaft. 13. The charging box according to claim 12 is characterized in that the rotating shaft also includes a second end portion, the second end portion is arranged opposite to the first end portion, and a chamfer is provided between the end face of the second end portion and the peripheral side face. 14. The charging box according to any one of claims 1 to 5, characterized in that the rotating part is provided with a shaft hole and two sink grooves, the two sink grooves are respectively arranged at two ends of the shaft hole along the axial direction of the shaft hole and connected to the shaft hole; The rotating shaft is inserted into the rotating shaft hole, and the rotating assembly further comprises two rubber rings, which are respectively located in the two sinking grooves and are both sleeved on the rotating shaft. 15. The charging box according to any one of claims 1 to 5, characterized in that the first shell includes a first outer shell and a first lining, the first lining is installed on the inner side of the first outer shell, and the installation space is partially located in the first lining and partially located in the first outer shell. 16. The charging box according to claim 15, characterized in that the first shell is a box body, and the second shell is a box cover; The first shell is provided with a groove, the opening of the groove is located on the outer surface of the first shell, the installation space forms a communication opening at the bottom wall of the groove, and part of the rotating part, part of the first lining and part of the rotating shaft are exposed relative to the bottom wall of the groove through the communication opening; The first shell further includes a decorative sheet, which is installed in the groove, and the outer surface of the decorative sheet is spliced with the outer surface of the first shell to form a continuous appearance surface. 17. The charging box according to any one of claims 1 to 5, characterized in that the fixing portion is provided with a recessed space, the fixing portion is fixedly connected to the second shell through a rubber component, and the rubber component is at least partially located in the recessed space. 18. The charging box according to claim 17 is characterized in that the fixing portion is in the shape of a flat plate, the recessed space includes at least one strip groove, and the opening of the strip groove is located on the outer surface of the fixing portion. 19. The charging box according to claim 18, characterized in that the fixing portion extends along a first direction, and the fixing portion comprises a first plate surface and a second plate surface disposed opposite to each other; There are multiple strip grooves, each of which extends along a second direction, and the second direction is perpendicular to or intersects with the first direction; Part of the strip grooves are located on the first plate surface, and another part of the strip grooves are located on the second plate surface; in the first direction, the strip grooves located on the first plate surface and the strip grooves located on the second plate surface are arranged alternately. 20. The charging box according to claim 19, characterized in that the second shell is provided with a plug-in slot, and the fixing portion is fixed to the plug-in slot; The plug-in slot comprises a first side wall surface and a second side wall surface which are arranged opposite to each other, wherein the first side wall surface is arranged opposite to the first plate surface, and the second side wall surface is arranged opposite to the second plate surface; The second shell further includes at least one first rib and at least one second rib, wherein the first rib is protrudingly disposed on the first side wall surface, and the second rib is protrudingly disposed on the second side wall surface, and extension directions of the first rib and the second rib both intersect with the strip groove. 21. The charging box according to any one of claims 1 to 5, characterized in that one or more claws are provided at the end of the fixing portion away from the connecting portion; The second housing is provided with a plug-in slot, and one or more card blocks are provided in the plug-in slot; The fixing portion is fixed to the plug-in slot, and the clamping claws and the clamping blocks are arranged alternately. 22. The charging box according to any one of claims 1 to 5, characterized in that, in a closed box state, an outer surface of the first shell and an outer surface of the second shell are spliced to form an appearance surface of the charging box, and the rotating assembly is hidden in the inner space of the appearance surface of the charging box. 23. The charging box according to any one of claims 1 to 5, characterized in that the parting surface between the first shell and the second shell is perpendicular to the height direction of the charging box, or is set at an angle to the height direction of the charging box. 24. The charging box according to any one of claims 1 to 5, characterized in that the first shell is a box body, and the second shell is a box cover; or, the first shell is a box cover, and the second shell is a box body; The charging box also includes a battery, which is installed in the box body. 25. An earphone assembly, comprising an earphone and a charging box according to any one of claims 1 to 24.