Earbud case and earbud case module

Abstract

This application provides an earbud case and an earbud case assembly. The earbud case includes a case body, a first charging pin group, and a second charging pin group. The first charging pin group and the second charging pin group are disposed on the case body, and the first charging pin group and the second charging pin group are spaced in a first direction. The first charging pin group includes a first positive charging pin and a first negative charging pin. The second charging pin group includes a second positive charging pin and a second negative charging pin. A connection line between the first positive charging pin and the second positive charging pin is a first connection line, a connection line between the first negative charging pin and the second negative charging pin is a second connection line, and the first connection line and the second connection line are crossed. When the first charging pin group charges a first earbud, an arrangement direction of a positive electrode and a negative electrode of the first earbud is an arrangement direction of the first positive charging pin and the first negative charging pin. An arrangement direction of the positive electrode and the negative electrode of the first earbud after the first earbud is flipped is the same as an arrangement direction of the second positive charging pin and the second negative charging pin. The second charging pin group may further charge the first earbud.

Description

[0001] This application claims priority to Chinese Patent Application No. 202311131565.9, filed with the China National Intellectual Property Administration on September 1, 2023, and entitled "EARBUD CASE AND EARBUD CASE ASSEMBLY", which is incorporated herein by reference in its entirety.TECHNICAL FIELD

[0002] This application relates to the earphone field, and in particular, to an earbud case and an earbud case assembly.BACKGROUND

[0003] With continuous development of electronic technologies and higher requirements of users for portability, wireless earphones are favored by more users. Generally, the wireless earphones are used together with an earbud case, and the earbud case may accommodate the wireless earphones and charge the wireless earphones. Both a first charging pin group and a second charging pin group are disposed in the earbud case. The first charging pin group matches and charges a left earbud, and the second charging pin group matches and charges a right earbud. When either of the first charging pin group and the second charging pin group is faulty, either the left earbud or the right earbud cannot be charged.SUMMARY

[0004] This application provides an earbud case and an earbud case assembly.

[0005] According to a first aspect, this application provides an earbud case. The earbud case includes a case body, a first charging pin group, and a second charging pin group. The first charging pin group and the second charging pin group are disposed on the case body, the first charging pin group and the second charging pin group are spaced in a first direction, the first charging pin group is configured to charge a first earbud, and the second charging pin group is configured to charge a second earbud. The first charging pin group includes a first positive charging pin and a first negative charging pin, the first positive charging pin and the first negative charging pin are spaced in a second direction, and the second direction is different from the first direction. The second charging pin group includes a second positive charging pin and a second negative charging pin, the second positive charging pin and the second negative charging pin are spaced in a third direction, and the third direction is different from the first direction. A connection line between the first positive charging pin and the second positive charging pin is a first connection line, a connection line between the first negative charging pin and the second negative charging pin is a second connection line, and the first connection line and the second connection line are crossed.

[0006] It may be understood that an arrangement direction of the first positive charging pin and the first negative charging pin in the first charging slot is set to be opposite to an arrangement direction of the second positive charging pin and the second negative charging pin in the second charging slot. In this way, when the earbud case is configured to charge the first earbud and the second earbud, the first earbud may be charged in the first charging slot, or may be charged in the second charging slot. In other words, when the first earbud and the second earbud are charged, there is no need to distinguish between a left ear and a right ear. For example, the first positive charging pin and the first negative charging pin may charge the first earbud. When the first earbud is flipped and connected to the second charging pin group, a direction of the second positive charging pin and the second negative charging pin relative to the first earbud may be the same as a direction of the first positive charging pin and the first negative charging pin relative to the first earbud. Therefore, the second charging pin group may also charge the first earbud. Charging of the second earbud is the same. In this way, when the earbud case charges the first earbud and the second earbud, when one of the first charging pin group and the second charging pin group is faulty, the first earbud and the second earbud may be charged via the other intact charging pin group.

[0007] In a possible implementation, a distance between the second positive charging pin and the first negative charging pin is less than a distance between the second negative charging pin and the first positive charging pin.

[0008] It may be understood that when the first earbud and the second earbud are charged, the first earbud may rotate by a specific angle in a direction away from the second charging pin group. A second earbud body may rotate by a specific angle in a direction away from the first charging pin group. In this way, when the distance between the first positive charging pin and the second negative charging pin remains unchanged, a distance of the earbud case in the first direction can be reduced.

[0009] In a possible implementation, a distance between the first positive charging pin and the first negative charging pin is equal to a distance between the second positive charging pin and the second negative charging pin.

[0010] In a possible implementation, the first positive charging pin and the second negative charging pin are symmetric with aspect to a symmetry plane, the first negative charging pin and the second positive charging pin are symmetric with aspect to the symmetry plane, and the symmetry plane is perpendicular to the first direction.

[0011] It may be understood that, when the first earbud and the second earbud are charged in the earbud case, the first earbud and the second earbud may be symmetrically arranged with aspect to the symmetry plane, so that a user can conveniently take out and place back the first earbud and the second earbud.

[0012] In a possible implementation, the case body includes an earbud holder and a housing, the earbud holder is connected to an inner side of the housing, and the earbud holder and the housing enclose housing space. The earbud case further includes a battery, and the battery is disposed in the housing space. The earbud holder is provided with a first charging slot and a second charging slot, and the first charging slot, the second charging slot, and the housing space are spaced from each other. The first positive charging pin and the first negative charging pin are disposed on the earbud holder, one end of the first positive charging pin and one end of the first negative charging pin are exposed relative to the first charging slot, and the other end of the first positive charging pin and the other end of the first negative charging pin are located in the housing space, and are electrically connected to the battery. The second positive charging pin and the second negative charging pin are disposed on the earbud holder, one end of the second positive charging pin and one end of the second negative charging pin are exposed relative to the second charging slot, and the other end of the second positive charging pin and the other end of the second negative charging pin are located in the housing space, and are electrically connected to the battery.

[0013] In a possible implementation, the housing is provided with a charging channel, and the charging channel communicates with the housing space. The earbud case includes a USB male connector, the USB male connector and the battery are spaced, a part of the USB male connector is disposed in the housing space, and a part is disposed in the charging channel. The USB male connector is electrically connected to the first positive charging pin, the first negative charging pin, the second positive charging pin, and the second negative charging pin. In this way, the earbud case may be charged in a USB wired charging manner.

[0014] In a possible implementation, the earbud case includes a speaker, the speaker is disposed in the housing space, and the speaker, the USB male connector, and the battery are spaced from each other. A gap exists between the USB male connector and a wall surface of the charging channel, and a sound emitted by the speaker is propagated to the outside of the case body through the gap and the charging channel.

[0015] It may be understood that, the charging channel may be shared by the speaker to emit the sound and the earbud case to charge the earbud, so that an additional hole may be prevented from being opened on the housing for emitting the sound by the speaker, thereby reducing a process and reducing preparation costs of the earbud case.

[0016] In a possible implementation, the earbud case includes a wireless charging coil, the wireless charging coil is located in the housing space, and the wireless charging coil and the battery are spaced from each other. The wireless charging coil is electrically connected to the first positive charging pin, the first negative charging pin, the second positive charging pin, and the second negative charging pin. In this way, the earbud case may be charged in a wireless charging manner.

[0017] In a possible implementation, the earbud case further includes a protective cover and a first rotating shaft, and the protective cover is rotatably connected to one end of the housing. A middle part of the first rotating shaft is fastened to the housing, a first end part of the first rotating shaft and a second end part of the first rotating shaft are rotatably connected to the protective cover, and the middle part of the first rotating shaft is connected between the first end part of the first rotating shaft and the second end part of the first rotating shaft.

[0018] It may be understood that, the first rotating shaft is fastened by using the housing, so that an additional fastening structure is not required for fastening the first rotating shaft, connection strength between the first rotating shaft and the housing is better, and an assembly process is simpler.

[0019] In a possible implementation, the housing includes a body part and a convex part, the convex part is convexly disposed on a surface that is of the body part and that faces the protective cover, and the earbud holder is connected to an inner side of the body part. The middle part of the first rotating shaft is fastened to the convex part.

[0020] It may be understood that the convex part is convexly disposed on the surface that is of the body part and that faces the protective cover, and the middle part of the first rotating shaft is fastened to the convex part. That is, the first rotating shaft is fastened to a side that is of the body part and that is close to the protective cover. Compared with a technical solution in which the first rotating shaft is fastened to a side that is of the body part and that is away from the protective cover, this solution can save internal space of the housing, and prevent the first rotating shaft and a corresponding fastening structure from occupying the internal space of the housing.

[0021] In a possible implementation, the earbud holder is disposed in an inclined manner relative to a side wall of the housing.

[0022] It may be understood that, when the first earbud and the second earbud are located in the earbud case, the first earbud and the second earbud are disposed on the earbud holder. When the earbud holder is placed in the inclined manner relative to the side wall of the housing, the first earbud and the second earbud may also be placed in the inclined manner relative to the side wall of the housing. In a height direction of the earbud case, a height of the earbud in the earbud case may be reduced, which helps reduce a height of the earbud case.

[0023] According to a second aspect, this application provides an earbud case assembly. The earbud case assembly includes an earbud and an earbud case, and the earbud is disposed in the earbud case. It may be understood that the earbud case may be configured to protect the earbuds.BRIEF DESCRIPTION OF DRAWINGS

[0024] To describe the technical solutions in embodiments of this application, the following describes the accompanying drawings used in embodiments of this application. FIG. 1 is a diagram of a structure of an implementation of an earbud case assembly according to an embodiment of this application; FIG. 2a is a diagram of a structure of an implementation of an earbud case shown in FIG. 1 in a closed state; FIG. 2b is a diagram of a structure of an implementation of an earbud case shown in FIG. 1 in an open state; FIG. 3 is an exploded diagram of an implementation of the earbud case shown in FIG. 2a; FIG. 4 is a diagram of a structure of an implementation of a charging case shown in FIG. 3; FIG. 5 is an exploded diagram of an implementation of the charging case shown in FIG. 4; FIG. 6 is a diagram of a structure of an implementation of an earbud holder shown in FIG. 5; FIG. 7 is a diagram of a structure of the earbud holder shown in FIG. 6 at another angle; FIG. 8 is an assembly diagram of a partial structure of the charging case shown in FIG. 5; FIG. 9 is a sectional view of an implementation of the structure shown in FIG. 8 at a sectional line A-A; FIG. 10 is an assembly diagram of a partial structure of the charging case shown in FIG. 5; FIG. 11 is an assembly diagram of a partial structure of the charging case shown in FIG. 5; FIG. 12 is a diagram of a structure of an implementation of a housing shown in FIG. 5; FIG. 13 is a diagram of a structure of the housing shown in FIG. 12 at another angle; FIG. 14 is an exploded diagram of an implementation of a battery module shown in FIG. 5; FIG. 15 is a partial sectional view of an implementation of the charging case shown in FIG. 4 at a sectional line B-B; FIG. 16 is a diagram of a structure of an implementation of a first holder shown in FIG. 5; FIG. 17 is a partial sectional view of an implementation of the charging case shown in FIG. 4 at a sectional line B-B; FIG. 18 is a partial sectional view of an implementation of the charging case shown in FIG. 4 at a sectional line C-C; FIG. 19 is an assembly diagram of a partial structure of the charging case shown in FIG. 5; FIG. 20 is a diagram of a structure of an implementation of a protective cover shown in FIG. 3; FIG. 21 is an exploded diagram of an implementation of the protective cover shown in FIG. 20; FIG. 22 is a diagram of a structure of an implementation of an outer cover shown in FIG. 21; FIG. 23 is a sectional view of an implementation of the earbud case shown in FIG. 2a at a sectional line D-D; FIG. 24 is a sectional view of an implementation of the earbud case shown in FIG. 2a at a sectional line E-E; FIG. 25 is a partial sectional view of an implementation of the earbud case shown in FIG. 2a at a sectional line F-F; FIG. 26 is an exploded diagram of an implementation of a rotating assembly shown in FIG. 3; FIG. 27 is an assembly diagram of an implementation of a first rotating shaft and a charging case shown in FIG. 26; FIG. 28 is a diagram of a structure of an implementation of a rotor shown in FIG. 26; FIG. 29 is a diagram of a structure of the rotor shown in FIG. 28 at another angle; FIG. 30 is an assembly diagram of an implementation of a second rotating shaft and a housing shown in FIG. 26; FIG. 31 is a partial sectional view of an implementation of the earbud case shown in FIG. 2a at a sectional line F-F; FIG. 32 is a diagram of a partial structure of an implementation in which a rotating assembly is connected to a housing of a charging case; FIG. 33 is a diagram of a structure of an implementation of a limiting piece shown in FIG. 26; FIG. 34 is a diagram of a partial structure of an implementation in which a rotating assembly is connected to a housing of a charging case; and FIG. 35 is a partial sectional view of an implementation of the structure shown in FIG. 34 at a sectional line G-G. DESCRIPTION OF EMBODIMENTS

[0025] The following describes embodiments of this application with reference to the accompanying drawings in embodiments of this application.

[0026] In the descriptions of embodiments of this application, it should be noted that terms "dispose" and "connection" should be understood in a broad sense unless there is a clear stipulation and limitation. For example, "connection" may be a detachable connection, an un-detachable connection, a direct connection, or an indirect connection through an intermediate medium. "Fixed connection" means a connection to each other and a relative position relationship unchanged after the connection. It should be understood that when a part A is fastened to a part C via a part B, a relative position relationship change caused by deformation of the part A, the part B, and the part C is allowed. Obtaining an integral structure of two components by using an integrated forming process means that, in a process of forming one of the two components, the component is connected to another component, and the two components can be connected without being reprocessed (for example, bonded, welded, clamped, or screwed).

[0027] Orientation terms mentioned in embodiments of this application, for example, "up", "down", and "side", are merely directions with reference to the accompanying drawings. Therefore, the orientation terms are used to better and more clearly describe and understand embodiments of this application, instead of indicating or implying that a specified apparatus or element should have a specific orientation, and be constructed and operated in the specific orientation. Therefore, this cannot be understood as a limitation on embodiments of this application.

[0028] The term "A plurality of" means at least two. The term "above" includes a present number. The term "and / or" describes an association relationship between associated objects and represents that three relationships may exist. For example, A and / or B may represent the following three cases: Only A exists, both A and B exist, and only B exists. Terms such as "first" and "second" are used only for description purposes, and cannot be understood as an indication or implication of relative importance or an implicit indication of a quantity of indicated technical features. Therefore, a feature limited by "first" or "second" may explicitly or implicitly include one or more features.

[0029] FIG. 1 is a diagram of a structure of an implementation of an earbud case assembly 1000 according to an embodiment of this application. FIG. 2a is a diagram of a structure of an implementation of an earbud case 100 shown in FIG. 1 in a closed state. FIG. 2b is a diagram of a structure of an implementation of an earbud case 100 shown in FIG. 1 in an open state.

[0030] As shown in FIG. 1, FIG. 2a, and FIG. 2b, the earbud case assembly 1000 may include the earbud case 100 and earbuds 200. The earbud case 100 may be configured to accommodate wireless earphones and charge the wireless earphones. The earphone may be an in-ear earphone, a semi-open earphone, or an open earphone 200. This application is described by using a wireless clip-on earphone as an example.

[0031] For example, the earbud case 100 may simultaneously accommodate two earbuds 200, and charge the two earbuds 200. For ease of description, the two earbuds 200 are respectively referred to as a first earbud and a second earbud (the first earbud is an earbud on the left side in FIG. 1, and the second earbud is an earbud on the right side in FIG. 1).

[0032] In some implementations, the first earbud and the second earbud may be the same, that is, the first earbud and the second earbud may have a same appearance and a same internal component arrangement.

[0033] The earbud case 100 may have accommodating space 40, and the accommodating space 40 may be used for accommodating the earbuds 200. The earbud case 100 may be in a closed state (as shown in FIG. 2a) or in an open state (as shown in FIG. 2b). When the earbud case 100 is in the open state, the accommodating space 40 is exposed. When the earbuds 200 are located in the earbud case 100, the earbuds 200 in the earbud case 100 may be presented, and a user may take out the earbuds 200, or the user may place the earbuds 200 in the accommodating space 40.

[0034] The earbud case 100 may be a vertical opening and closing earbud case, a push-pull opening and closing earbud case, or the like. This application is described by using a vertical opening and closing earbud case 100 as an example.

[0035] For ease of description, a width direction of the earbud case 100 is defined as an X axis, a thickness direction of the earbud case 100 is defined as a Y axis, and a height direction of the earbud case 100 is defined as a Z axis.

[0036] In some implementations, a width of the earbud case 100 is W, a thickness of the earbud case 100 is D, a height of the earbud case 100 is H, and a relationship between the width, the thickness, and the height meets W>H>D.

[0037] FIG. 3 is an exploded diagram of an implementation of the earbud case 100 shown in FIG. 2a.

[0038] As shown in FIG. 3, the earbud case 100 may include a charging case 10, a protective cover 20, and a rotating assembly 30. The rotating assembly 30 is rotatably connected to the charging case 10. The rotating assembly 30 is rotatably connected to the protective cover 20. The charging case 10 and the protective cover 20 may rotate relative to each other via the rotating assembly 30, so that the earbud case 100 can switch between a closed state and an open state.

[0039] FIG. 4 is a diagram of a structure of an implementation of the charging case 10 shown in FIG. 3. FIG. 5 is an exploded diagram of an implementation of the charging case 10 shown in FIG. 4.

[0040] As shown in FIG. 4 and FIG. 5, the charging case 10 may include a case body 1, a first charging pin group 2, a second charging pin group 3, a battery module 4, a mainboard 5, a charging coil module 6, a first holder 7, an antenna 8, a speaker 9, a magnet module 19 (a structure in a dashed-line box), and a first flexible circuit board 18. The first charging pin group 2 and the first charging pin group 2 are disposed on the case body 1. The battery module 4, the mainboard 5, the charging coil module 6, the first holder 7, the antenna 8, the speaker 9, the magnet 19, and the first flexible circuit board 18 may be disposed inside the case body 1. The first charging pin group 2 may be configured to charge the first earbud. The second charging pin group 3 may be configured to charge the second earbud. For example, the case body 1 may include an earbud holder 11 and a housing 12. The earbud holder 11 is connected to an inner side of the housing 12. For example, the first charging pin group 2 includes a first positive charging pin 21 and a first negative charging pin 22. The second charging pin group 3 includes a second positive charging pin 31 and a second negative charging pin 32.

[0041] FIG. 6 is a diagram of a structure of an implementation of the earbud holder 11 shown in FIG. 5. FIG. 7 is a diagram of a structure of the earbud holder 11 shown in FIG. 6 at another angle.

[0042] As shown in FIG. 6 and FIG. 7, the earbud holder 11 has a top surface 111 and a bottom surface 112. The top surface 111 and the bottom surface 112 are disposed back to back. The earbud holder 11 may have a first charging slot 13 and a second charging slot 14. An opening of the first charging slot 13 and an opening of the second charging slot 14 may be located on the top surface 111 of the earbud holder 11. The first charging slot 13 and the second charging slot 14 may be spaced in a first direction. It may be understood that the first charging slot 13 and the second charging slot 14 may be configured to accommodate the earbuds 200. In FIG. 6, an example in which the first direction is parallel to an X-axis direction is used for illustration. In another implementation, the first direction may be any direction in an X-Y plane. For example, the first direction may be at an included angle with the X-axis direction.

[0043] The earbud holder 11 may be provided with a first charging hole 115, a second charging hole 116, a third charging hole 117, and a fourth charging hole 118. The top surface 111 of the earbud holder 11 communicates with the bottom surface 112 of the earbud holder 11 through the first charging hole 115, the second charging hole 116, the third charging hole 117, and the fourth charging hole 118. For example, the first charging hole 115 and the second charging hole 116 are located in the first charging slot 13, and are spaced. The third charging hole 117 and the fourth charging hole 118 are located in the second charging slot 14, and are spaced.

[0044] In some implementations, the first charging slot 13 and the second charging slot 14 may be symmetric with respect to a symmetry plane S. The first direction is perpendicular to the symmetry plane S. In FIG. 6, an example in which the symmetry plane S is parallel to a Y-Z plane is used for illustration.

[0045] In some implementations, the opening of the first charging slot 13 may have a first major axis L1 (the first major axis L1 is a virtual line segment, and is schematically represented by a dotted line in FIG. 6), and the first major axis L1 is a connection line between two points that are farthest from each other on the opening of the first charging slot 13. A projection of the first major axis L1 on the X-Y plane is at an included angle with a Y-axis direction. For example, the included angle may be 2°, 5°, or 8°.

[0046] In some implementations, the opening of the second charging slot 14 may have a second major axis L2 (the second major axis L2 is a virtual line segment, and is schematically represented by a dotted line in FIG. 6), and the second major axis L2 is a connection line between two points that are farthest from each other on the opening of the second charging slot 14. A projection of the second major axis L2 on the X-Y plane is at an included angle with a Y-axis direction. For example, the included angle may be 2°, 5°, or 8°.

[0047] In some implementations, the first charging hole 115 and the fourth charging hole 118 may be symmetric with respect to the symmetry plane S.

[0048] In some implementations, the second charging hole 116 and the third charging hole 117 may be symmetric with respect to the symmetry plane S.

[0049] The earbud holder 11 may further have a first accommodating slot 23 and a second accommodating slot 24. The first accommodating slot 23 and the second accommodating slot 24 may be spaced in the first direction. The first accommodating slot 23 and the second accommodating slot 24 may also be configured to accommodate the earbuds 200. For example, when the first earbud and the second earbud are clip-on earbuds 200, the first accommodating slot 23 may cooperate with the first charging slot 13, to accommodate the first earbud; and the second accommodating slot 24 may cooperate with the second charging slot 14, to accommodate the second earbud.

[0050] For example, the first accommodating slot 23, the second accommodating slot 24, the first charging slot 13, and the second charging slot 14 are spaced. The first accommodating slot 23 may be disposed on a side that is of the first charging slot 13 and that is away from the second charging slot 14. The second accommodating slot 24 may be disposed on a side that is of the second charging slot 14 and that is away from the first charging slot 13. In other words, the first charging slot 13 and the second charging slot 14 may be located between the first accommodating slot 23 and the second accommodating slot 24.

[0051] In another implementation, the first accommodating slot 23 may be disposed on a side that is of the first charging slot 13 and that is close to the second charging slot 14. The second accommodating slot 24 may be disposed on a side that is of the second charging slot 14 and that is close to the first charging slot 13. The first accommodating slot 23 and the second accommodating slot 24 may be located between the first charging slot 13 and the second charging slot 14.

[0052] In some implementations, the first accommodating slot 23 and the second accommodating slot 24 may be symmetric with respect to the symmetry plane S.

[0053] The earbud holder 11 may further have a first groove 1121, a second groove 1122, a third groove 1123, and a fourth groove 1124 that are spaced. An opening of the first groove 1121, an opening of the second groove 1122, an opening of the third groove 1123, and an opening of the fourth groove 1124 may be located on the bottom surface 112 of the earbud holder 11.

[0054] In some implementations, the earbud holder 11 may further include a first positioning rod 113. The first positioning rod 113 and the first charging hole 115 may be adjacent and spaced. The first positioning rod 113 is located on a side of the bottom surface 112 of the earbud holder 11.

[0055] For example, there may be two first positioning rods 113. The two first positioning rods 113 may be arranged in the first direction, and are located on two sides of the first charging hole 115.

[0056] In some implementations, the earbud holder 11 may further include a second positioning rod 114. The second positioning rod 114 and the second charging hole 116 may be adjacent and spaced. The earbud holder 11 may further include a third positioning rod 25. The third positioning rod 25 and the third charging hole 117 may be adjacent and spaced. The earbud holder 11 may further include a fourth positioning rod 26. The fourth positioning rod 26 and the fourth charging hole 118 may be adjacent and spaced. For manners of disposing the second positioning rod 114, the third positioning rod 25, and the fourth positioning rod 26, refer to the manner of disposing the first positioning rod 113. Details are not described herein again.

[0057] FIG. 8 is an assembly diagram of a partial structure of the charging case 10 shown in FIG. 5.

[0058] As shown in FIG. 8, the first charging pin group 2 and the second charging pin group 3 are disposed on the earbud holder 11. The first charging pin group 2 and the second charging pin group 3 may be spaced in the first direction. For example, one end of the first positive charging pin 21 and one end of the first negative charging pin 22 are exposed from the first charging slot 13. One end of the second positive charging pin 31 and one end of the second negative charging pin 32 are exposed from the second charging slot 14.

[0059] For example, the first positive charging pin 21 may be disposed in the first charging hole 115. The first negative charging pin 22 may be disposed in the second charging hole 116. The second positive charging pin 31 may be disposed in the third charging hole 117. The second positive charging pin 31 may be disposed in the third charging hole 117. The second negative charging pin 32 may be disposed in the fourth charging hole 118.

[0060] In some implementations, the first positive charging pin 21 and the first negative charging pin 22 may be spaced in a second direction. The second direction is different from the first direction.

[0061] In some implementations, the second positive charging pin 31 and the second negative charging pin 32 may be spaced in a third direction. The third direction is different from the first direction. It may be understood that the third direction may be the same as or different from the second direction. The third direction and the second direction shown in FIG. 8 are different.

[0062] In some implementations, a connection line between the first positive charging pin 21 and the first negative charging pin 22 may be disposed at an included angle with the symmetry plane S. A connection line between the second positive charging pin 31 and the second negative charging pin 32 may be disposed at an included angle with the symmetry plane S. In another implementation, a connection line between the first positive charging pin 21 and the first negative charging pin 22 may be parallel to the symmetry plane S.

[0063] FIG. 9 is a sectional view of an implementation of the structure shown in FIG. 8 at a sectional line A-A.

[0064] As shown in FIG. 8 and FIG. 9, the first positive charging pin 21 may include a first end 211 and a second end 212 that are spaced in a length direction. A first charging pin is disposed in the first charging hole 115, the first end 211 of the first positive charging pin 21 is exposed from the first charging slot 13, and the second end 212 is exposed from the bottom surface 112 of the earbud holder 11. For a manner of disposing the first negative charging pin 22 and the second charging hole 116, a manner of disposing the second positive charging pin 31 and the third charging hole 117, and a manner of disposing the second negative charging pin 32 and the fourth charging hole 118, refer to the manner of disposing the first positive charging pin 21 and the first charging hole 115. Details are not described herein again.

[0065] A connection line between the first positive charging pin 21 and the second positive charging pin 31 is a first connection line. A connection line between the first negative charging pin 22 and the second negative charging pin 32 is a second connection line. The first connection line and the second connection line are crossed. It should be noted that "crossed" herein means that a projection of the first connection line on the X-Y plane is crossed with a projection of the second connection line on the X-Y plane. In space, the first connection line and the second connection line may intersect or may not intersect.

[0066] It may be understood that an arrangement direction of the first positive charging pin 21 and the first negative charging pin 22 in the first charging slot 13 is set to be opposite to an arrangement direction of the second positive charging pin 31 and the second negative charging pin 32 in the second charging slot 14. In this way, when the earbud case 100 is configured to charge the first earbud and the second earbud, the first earbud may be charged in the first charging slot 13, or may be charged in the second charging slot 14 after the first earbud is rotated by an angle (for example, the first earbud is charged in the first charging slot, or may be charged in the second charging slot after the first earbud is rotated by 180° on the X-Y plane). The same applies to the second earbud. In other words, when the first earbud and the second earbud are charged, there is no need to distinguish between a left ear and a right ear, and the first positive charging pin 21 and the first negative charging pin 22 may charge the first earbud, or may charge the second earbud. The second positive charging pin 31 and the second negative charging pin 32 may charge the first earbud, or may charge the second earbud. In this way, user experience is better.

[0067] For example, a connection line between a center of the first positive charging pin 21 and a center of the second positive charging pin 31 is a first connection line. A connection line between a center of the first negative charging pin 22 and a center of the second negative charging pin 32 is a second connection line.

[0068] In some implementations, a distance between the first positive charging pin 21 and the first negative charging pin 22 may be equal to a distance between the second positive charging pin 31 and the second negative charging pin 32.

[0069] In some implementations, the first positive charging pin 21 and the second negative charging pin 32 may be symmetric with respect to the symmetry plane S. The first negative charging pin 22 and the second positive charging pin 31 may be symmetric with respect to the symmetry plane S.

[0070] In some implementations, a distance between the second positive charging pin 31 and the first negative charging pin 22 may be less than a distance between the second negative charging pin 32 and the first positive charging pin 21. The first positive charging pin 21, the first negative charging pin 22, the second positive charging pin 31, and the second negative charging pin 32 may be arranged in a "V" shape. That is, the first connection line and the second connection line may be in the "V" shape.

[0071] In some implementations, a projection of the first connection line on the X-Y plane is a first projection. The first projection may be disposed at an included angle with the Y axis. For example, the included angle may be 2°, 5°, or 8°.

[0072] In some implementations, a projection of the first connection line on the Y-Z plane is a second projection. The second projection may be disposed at an included angle with the Y axis. For example, the included angle may be 5°, 10°, 15°, 20°, or the like. When the first earbud is charged, the first earbud may be placed in an inclined manner relative to the X-Y plane, so that a height of the charging case 10 can be reduced.

[0073] FIG. 10 is an assembly diagram of a partial structure of the charging case 10 shown in FIG. 5.

[0074] As shown in FIG. 5 and FIG. 10, the magnet 19 may include a first magnet 191, a second magnet 192, a third magnet 193, and a fourth magnet 194. The first magnet 191 is correspondingly disposed in the first groove 1121. The second magnet 192 is correspondingly disposed in the second groove 1122. The third magnet 193 is correspondingly disposed in the third groove 1123. The fourth magnet 194 is correspondingly disposed in the fourth groove 1124. For example, the first magnet 191, the second magnet 192, the third magnet 193, and the fourth magnet 194 may be spaced in the first direction.

[0075] The magnet 19 may further include a first suction magnet 19. When the earbud case 100 is switched from an open state to a closed state, the first suction magnet 19 may be configured to help the protective cover 20 reset.

[0076] FIG. 11 is an assembly diagram of a partial structure of the charging case 10 shown in FIG. 5.

[0077] As shown in FIG. 11, the first flexible circuit board 18 may be fastened to the bottom surface 112 of the earbud holder 11. The first positive charging pin 21, the first negative charging pin 22, the second positive charging pin 31, and the second negative charging pin 32 are all connected to the first flexible circuit board 18, and are electrically connected to the first flexible circuit board 18. The first flexible circuit board 18 may be configured to transfer an electrical signal to the first positive charging pin 21, the first negative charging pin 22, the second positive charging pin 31, and the second negative charging pin 32. For example, when the first charging pin is disposed in the first charging hole 115, the second end 212 of the first positive charging pin 21 is exposed from the bottom surface 112 of the earbud holder 11. The first flexible circuit board 18 has a first electrical connection part 182. The first electrical connection part 182 is configured to transmit an electrical signal to the first positive charging pin 21. The second end 212 of the first positive charging pin 21 may be connected to the first electrical connection part 182 of the first flexible circuit board 18, and is electrically connected to the first electrical connection part 182.

[0078] In some implementations, the first flexible circuit board 18 is provided with an avoidance hole 181. When the flexible circuit is fastened to the bottom surface 112 of the earbud holder 11, the positioning rod is located in the avoidance hole 181. In this way, the first positioning rod 113 may be configured to assist the first flexible circuit board 18 in positioning when the first flexible circuit board 18 is installed, and help the first positive charging pin 21 quickly position a position connected to the first flexible circuit board 18. In addition, a risk of disconnection between the first positive charging pin 21 and the first flexible circuit board 18 caused by displacement of the first flexible circuit board 18 can be further reduced.

[0079] FIG. 12 is a diagram of a structure of an implementation of the housing 12 shown in FIG. 5. FIG. 13 is a diagram of a structure of the housing 12 shown in FIG. 12 at another angle.

[0080] As shown in FIG. 12 and FIG. 13, the housing 12 may include a body part 121 and a convex part 122. The convex part 122 may be connected to a top surface 1219 of the body part 121. For example, the convex part 122 and the body part 121 may be an integrated mechanical part. For example, the housing 12 may be formed into an integrally formed mechanical part in an injection molding process.

[0081] For example, the body part 121 may include a first side wall 1211, a second side wall 1212, a third side wall 1213, a fourth side wall 1214, and a bottom wall 1215. The first side wall 1211 and the second side wall 1212 are opposite and spaced, and the third side wall 1213 and the fourth side wall 1214 are opposite and spaced. The third side wall 1213 is connected between the first side wall 1211 and the second side wall 1212. The fourth side wall 1214 is connected between the first side wall 1211 and the second side wall 1212. The first side wall 1211 includes a top surface and a bottom surface that are disposed back to back. The second side wall 1212 includes a top surface and a bottom surface that are disposed back to back. The third side wall 1213 includes a top surface and a bottom surface that are disposed back to back. The fourth side wall 1214 includes a top surface and a bottom surface that are disposed back to back. The bottom wall 1215 is connected to the bottom surface of the first side wall 1211, the bottom surface of the second side wall 1212, the bottom surface of the third side wall 1213, and the bottom surface of the fourth side wall 1214. The first side wall 1211, the second side wall 1212, the third side wall 1213, the fourth side wall 1214, and the bottom wall 1215 may enclose the first groove 1121. The convex part 122 may be connected to the top surface of the second side wall 1212. The top surface of the first side wall 1211, the top surface of the second side wall 1212, the top surface of the third side wall 1213, and the top surface of the fourth side wall 1214 form the top surface 1219 of the body part 121.

[0082] The housing 12 may be provided with a first through hole 123, a second through hole 124, and a charging channel 125. The first through hole 123, the second through hole 124, and the charging channel 125 all communicate with the first groove 1121. The first through hole 123, the second through hole 124, and the charging channel 125 are spaced from each other. For example, the first through hole 123 may be disposed on the first side wall 1211, and communicates with the first groove 1121. The second through hole 124 may be disposed on the third side wall 1213, and communicates with the first groove 1121. The charging channel 125 may be disposed on the bottom wall 1215, and communicates with the first groove 1121.

[0083] The convex part 122 may be provided with a first rotation hole 1221 and a second rotation hole 1222. In a Z-axis direction, the first rotation hole 1221 and the second rotation hole 1222 are spaced. For example, a length direction of the first rotation hole 1221 may be the first direction. A length direction of the second rotation hole 1222 may be the first direction.

[0084] In some implementations, the third side wall 1213, the fourth side wall 1214, and the bottom wall 1215 may be curved.

[0085] In some implementations, the first side wall 1211, the second side wall 1212, the third side wall 1213, the fourth side wall 1214, and the bottom wall 1215 may be an integrally formed mechanical part.

[0086] FIG. 14 is an exploded diagram of an implementation of the battery module 4 shown in FIG. 5.

[0087] As shown in FIG. 14, the battery module 4 may include a battery case 41 and a battery 42. The battery 42 is disposed inside the battery case 41. The battery case 41 is configured to load the battery 42 and protect the battery 42. For example, the battery case 41 may include a frame body 411 and a cover plate 412. The cover plate 412 is connected to the frame body 411. The frame body 411 and the cover plate 412 enclose first space 43. The battery 42 is located in the first space 43.

[0088] In some implementations, the frame body 411 of the battery case 41 may be made of plastic. In this way, mass of the battery case 41 is light.

[0089] In some implementations, the cover plate 412 of the battery case 41 may be made of stainless steel. When the battery 42 is on fire, the cover plate 412 made of stainless steel may block the fire.

[0090] In another implementation, the battery case 41 may not include the cover plate 412.

[0091] FIG. 15 is a partial sectional view of an implementation of the charging case 10 shown in FIG. 4 at a sectional line B-B.

[0092] As shown in FIG. 15, the earbud holder 11 may be connected to an inner side of the housing 12, and the earbud holder 11 and the housing 12 may enclose housing space 130. For example, the earbud holder 11 may be connected to an inner side of the body part 121. The earbud holder 11 and the body part 121 may enclose the housing space 130. The first magnet 191, the second magnet 192, the third magnet 193, the fourth magnet 194, the first flexible circuit board 18, the mainboard 5, and the battery module 4 may all be disposed in the housing space 130. The first flexible circuit board 18 is connected to the mainboard 5, and is electrically connected to the mainboard 5. The battery module 4 is connected to the mainboard 5, and is electrically connected to the mainboard 5. In this way, a current of the battery module 4 may be conducted to the charging pin through the mainboard 5 and the first flexible circuit board 18, to charge the earbuds 200.

[0093] For example, the first charging slot 13, the second charging slot 14, and the housing space 130 are spaced.

[0094] As shown in FIG. 8, FIG. 9, and FIG. 15, one end of the first positive charging pin 21 and one end of the first negative charging pin 22 are exposed from the first charging slot 13, and the other end of the first positive charging pin 21 and the other end of the first negative charging pin 22 are located in the housing space 130, and are electrically connected to the battery 42. One end of the second positive charging pin 31 and one end of the second negative charging pin 32 are exposed from the second charging slot 14, and the other end of the second positive charging pin 31 and the other end of the second negative charging pin 32 are located in the housing space 130, and are electrically connected to the battery 42.

[0095] In some implementations, the first positive charging pin 21, the first negative charging pin 22, the second positive charging pin 31, and the second negative charging pin 32 may be connected to the first flexible circuit board 18, and are electrically connected to the first flexible circuit board 18. The first positive charging pin 21, the first negative charging pin 22, the second positive charging pin 31, and the second negative charging pin 32 may be electrically connected to the battery 42 via the first flexible circuit board 18.

[0096] For example, in the Z-axis direction, the first magnet 191 is disposed opposite to the first charging slot 13. The second magnet 192 is disposed opposite to the second charging slot 14. The third magnet 193 is located between the first charging slot 13 and the first accommodating slot 23. The fourth magnet 194 may be located between the second charging slot 14 and the second accommodating slot 24. It may be understood that the first magnet 191 and the third magnet 193 may be configured to cooperate with a magnet inside the first earbud. When the first earbud is placed in the earbud case, this may help the first earbud quickly position in the first charging slot 13 and the first accommodating slot 23. The second magnet 192 and the fourth magnet 194 may be configured to cooperate with a magnet inside the second earbud. When the second earbud is placed in the earbud case, this may help the second earbud quickly position in the second charging slot 14 and the second accommodating slot 24.

[0097] For example, in the Z-axis direction, the mainboard 5, the battery module 4, and the earbud holder 11 are stacked. The battery module 4 is located between the earbud holder 11 and the mainboard 5. The mainboard 5 may be fastened to a side that is of the battery case 41 and that is away from the earbud holder 11.

[0098] In some implementations, the charging case 10 may further include a button module 17. The button module 17 may be fastened on the body part 121. For example, a part of the button module 17 may be located in the second through hole 124. One end of the button module 17 may be exposed from the charging case 10 through the second through hole 124, and the other end is exposed from the housing space 130. The button module 17 may be connected to a second electrical connection part 183 of the first flexible circuit board 18, and is electrically connected to the second electrical connection part 183 of the first flexible circuit board 18.

[0099] In some implementations, the button module 17 may be connected to a pairing switch of the earbud case, and the user may enable the earbud case to be in a Bluetooth pairing state by pressing the button module 17.

[0100] FIG. 16 is a diagram of a structure of an implementation of the first holder 7 shown in FIG. 5.

[0101] As shown in FIG. 16, the first holder 7 includes a top surface 71 and a bottom surface 72. The first holder 7 is provided with a first penetrating hole 73, and the top surface 71 of the first holder 7 communicates with the bottom surface 72 of the first holder 7 through the first penetrating hole 73. The first holder 7 may be further provided with a fifth groove 74, and an opening of the fifth groove 74 is located on the top surface 71 of the first holder 7. The fifth groove 74 and the first penetrating hole 73 are spaced.

[0102] FIG. 17 is a partial sectional view of an implementation of the charging case 10 shown in FIG. 4 at a sectional line B-B. FIG. 18 is a partial sectional view of an implementation of the charging case 10 shown in FIG. 4 at a sectional line C-C.

[0103] As shown in FIG. 17 and FIG. 18, the first holder 7 is located in the housing space 130. For example, the first holder 7 is fastened to a side that is of the mainboard 5 and that is away from the battery module 4. In the Z-axis direction, the first penetrating hole 73 of the first holder 7 and the charging channel 125 are disposed opposite to each other and communicate with each other.

[0104] The mainboard 5 may include a circuit board 51 and an electronic component 52 disposed on the circuit board 51. The circuit board 51 may be fastened to the battery case 41. The circuit board 51 may be used as a carrier of the electronic component. For example, the electronic component may be an active component, for example, a chip, or may be a passive component, for example, a capacitor, an inductor, or a resistor. It may be understood that, the electronic component 52 may be selected and combined by different types and quantities, so that the mainboard 5 has a specific function. A person skilled in the art can select a type of the electronic component and a quantity of electronic components based on an actual requirement. This is not limited in this application.

[0105] The electronic component 52 may include a USB male connector 531. The USB male connector 531 is located in the housing space 130. The USB male connector 531 and the battery 42 are spaced. For example, the USB male connector 531 is fastened to a side that is of the circuit board 51 and that is away from the battery module 4, and is electrically connected to the circuit board 51. A part of the USB male connector 531 may be located in the housing space 130, and the other part is located in the first penetrating hole 73 and the charging channel 125. The USB male connector 531 may be exposed from the housing 12 of the charging case 10 through the charging channel 125. The USB male connector 531 may be configured to connect to an external USB charging cable.

[0106] The USB male connector 531 is electrically connected to the first positive charging pin 21, the first negative charging pin 22, the second positive charging pin 31, and the second negative charging pin 32. In this way, the battery module 4 may be charged in a USB charging manner.

[0107] The speaker 9 may be located in the housing space 130. The speaker 9, the USB male connector, and the battery module 4 are spaced. For example, the speaker 9 is disposed in the fifth groove 74 of the first holder 7. The mainboard 5 is located between the first holder 7 and the battery module 4. The top surface 71 of the first holder 7 faces the mainboard 5.

[0108] In some implementations, a gap S1 exists between the USB male connector 531 and a wall surface of the charging channel 125. The housing space 130 communicates with the outside of the housing 12 through the gap S1. A sound emitted by the speaker 9 may be propagated to the outside of the housing 12 through the gap S1 and the charging channel 125.

[0109] For example, a bottom surface of the fifth groove 74 is provided with a second penetrating hole 75, the fifth groove 74 communicates with the charging channel 125 through the second penetrating hole 75. The sound emitted by the speaker 9 may be propagated to the outside of the housing 12 through the second penetrating hole 75, the gap S1, and the charging channel 125. In another implementation, the fifth groove 74 may not be disposed on the first holder 7. The speaker 9 may be fastened to a side that is of the first holder 7 and that faces the charging channel 125.

[0110] In some implementations, the charging case 10 may further include sealing foam 161. The sealing foam 161 is connected between the bottom surface 72 of the first holder 7 and the housing 12. The sealing foam 161, the bottom surface 72 of the first holder 7, and the housing 12 enclose the second space 15. The first penetrating hole 73 communicates with the second space 15. The second penetrating hole 75 communicates with the second space 15. The charging channel 125 also communicates with the second space 15. The sealing foam 161 may help fasten a relative position between the first holder 7 and the housing 12, and may be further configured to concentrate the sound of the speaker 9, so that the sound of the speaker 9 is emitted through the charging channel 125 as much as possible. The sound emitted by the speaker 9 may be propagated to the outside of the housing 12 through the second penetrating hole 75, the second space 15, the gap S1, and the charging channel 125. A propagation path of the sound emitted by the speaker 9 is shown by an arrow with a dashed line in the figure.

[0111] In some implementations, the charging case 10 may further include a waterproof and breathable membrane (not shown in the figure). The waterproof and breathable membrane may be connected to the USB male connector 531 and the housing 12, and cover the gap S1 between the USB male connector 531 and the charging channel 125. The waterproof and breathable membrane may be configured to prevent external water vapor and dust from entering the second space 15 through the charging channel 125 and interfering with operating of an internal component of the housing 12.

[0112] The charging coil module 6 may be located in the housing space 130. For example, the charging coil module 6 may include a wireless charging coil 61 and a magnetic isolation plate 62. The wireless charging coil 61 is connected to the magnetic isolation plate 62. The charging coil is electrically connected to the mainboard 5. The battery module 4 is electrically connected to the mainboard 5. The wireless charging coil 61 may be configured to wirelessly charge the battery module 4. The magnetic isolation plate 62 may be configured to isolate an electromagnetic signal, to prevent another component from interfering with wireless charging effect.

[0113] In some implementations, the wireless charging coil 61 may be disposed between the magnetic isolation plate 62 and the second side wall 1212. For example, the magnetic isolation plate 62 may be located on a side that is of the battery module 4 and that is close to the second side wall 1212.

[0114] In another implementation, alternatively, the charging coil module 6 may not include a magnetic isolation plate.

[0115] In some implementations, the earbud holder 11 is disposed in an inclined manner relative to a side wall of the housing 12. When the first earbud and the second earbud are located in the earbud case 100, the first earbud and the second earbud may be placed in an inclined manner relative to the X-Y plane, so that a height of the charging case 10 can be reduced.

[0116] For example, the top surface 111 and the second side wall 1212 are at an acute angle. For example, an included angle between the top surface 111 and the second side wall 1212 may be 5°, 10°, 15°, 20°, or the like.

[0117] In some implementations, the charging case 10 may further include a dust filter 170. The dust filter 170 may be fastened to the first holder 7, and cover the second penetrating hole 75. The dust filter 170 can prevent dust from entering the fifth groove 74 through the charging channel 125 and the second penetrating hole 75, without affecting communication between the fifth groove 74 and the charging channel 125, to avoid interfering with operating of the speaker 9.

[0118] In some implementations, the charging case 10 may further include an indicator module 162. The indicator module 162 may be fastened to the earbud holder 11. A part of the indicator module 162 may be located in the first through hole 123 and exposed from the housing 12. The indicator module 162 may be connected to the first flexible circuit board 18, and is electrically connected to the first flexible circuit board 18. The first flexible circuit board 18 may be configured to transmit an electrical signal to the indicator module 162.

[0119] In some implementations, the indicator module 162 may be configured to emit light of different colors, to indicate a battery level of the earbud case. For example, when the battery level of the earbud case is sufficient, the earbud case displays green; when the battery level is low, the earbud case displays red; or when the battery level is medium, the earbud case displays yellow.

[0120] FIG. 19 is an assembly diagram of a partial structure of the charging case 10 shown in FIG. 5.

[0121] As shown in FIG. 18 and FIG. 19, the antenna 8 may be located in the housing space 130. The antenna 8 is electrically connected to the mainboard 5. The antenna 8 may implement a communication connection to an external receiver. For example, the external receiver may be an electronic device (for example, a mobile phone) of the user. The charging case 10 may further include a controller (not shown in the figure). The controller may be configured to control the antenna 8 to send a signal, and the receiver may determine a distance between the antenna 8 and the mobile phone based on the signal sent by the antenna 8.

[0122] In some implementations, when the distance between the antenna 8 and the mobile phone of the user exceeds a preset distance, the controller may be configured to emit a sound via the speaker 9, to prompt the user, thereby reducing a risk of losing the earbud case 100. In some implementations, the controller may be located on the mainboard 5.

[0123] For example, the antenna 8 may be fastened to the bottom surface 72 of the first holder 7. The charging case 10 may further include an electrical connector 163. The antenna 8 is connected to the electrical connector 163, and is electrically connected to the electrical connector 163. The electrical connector 163 is connected to the circuit board 51, and is electrically connected to the circuit board 51. The antenna 8 may be electrically connected to the mainboard 5 via the electrical connector 163.

[0124] In some implementations, the electrical connector 163 may use a flexible circuit board. In another implementation, the electrical connector 163 may alternatively be a metal wire or a cable.

[0125] The battery case 41 may be fastened to the bottom surface 112 of the earbud holder 11. For example, the battery case 41 may be screwed to the bottom surface 112 of the earbud holder 11.

[0126] FIG. 20 is a diagram of a structure of an implementation of the protective cover 20 shown in FIG. 3. FIG. 21 is an exploded diagram of an implementation of the protective cover 20 shown in FIG. 20.

[0127] As shown in FIG. 20 and FIG. 21, the protective cover 20 may include a housing 210, a second suction magnet 220, and a Hall effect magnet 230. The protective cover 20 may be provided with a third accommodating slot 231 and a fourth accommodating slot 241. The third accommodating slot 231 and the fourth accommodating slot 241 may be spaced in the first direction.

[0128] For example, the housing 210 of the protective cover 20 may include an outer cover 2110 and an inner cover 2120. The inner cover 2120 is connected to an inner side of the outer cover 2110, and the inner cover 2120 and the outer cover 2110 enclose third space 261. The second suction magnet 220 and the Hall effect magnet 230 may be disposed in the third space 261. The third accommodating slot 231 and the fourth accommodating slot 241 may be located on the inner cover 2120, an opening of the third accommodating slot 231 faces a side away from the outer cover 2110, and an opening of the fourth accommodating slot 241 faces the side away from the outer cover 2110.

[0129] FIG. 22 is a diagram of a structure of an implementation of the outer cover 2110 shown in FIG. 21.

[0130] As shown in FIG. 22, the outer cover 2110 may include an outer cover body 2111 and an isolation plate 2112. The outer cover body 2111 includes an outer surface 2113 and an inner surface 2114. The isolation plate 2112 is connected to the inner surface 2114 of the outer cover body 2111. The isolation plate 2112 and the inner surface 2114 of the outer cover body 2111 enclose the sixth groove 2115.

[0131] FIG. 23 is a sectional view of an implementation of the earbud case 100 shown in FIG. 2a at a sectional line D-D.

[0132] As shown in FIG. 23, when the earbud case 100 is in a closed state, the protective cover 20 is connected to the charging case 10. The protective cover 20 and the charging case 10 enclose the accommodating space 40. For example, in the Z-axis direction, the third accommodating slot 231 may be disposed opposite to the first charging slot 13 and the first accommodating slot 23. The fourth accommodating slot 241 may be disposed opposite to the second charging slot 14 and the second accommodating slot 24. The third accommodating slot 231, the first charging slot 13, and the first accommodating slot 23 form first accommodating space 401, and the first accommodating space 401 may be configured to accommodate the first earbud. The fourth accommodating slot 241, the second charging slot 14, and the second accommodating slot 24 may form second accommodating space 402, and the second accommodating space 402 may be configured to accommodate the second earbud. The first accommodating space 401 and the second accommodating space 402 may form the accommodating space 40.

[0133] In another implementation, the third accommodating slot 231 and the fourth accommodating slot 241 may also communicate with each other. Alternatively, only one groove structure needs to be disposed on the protective cover 20, and the groove structure is configured to cooperate with the first charging slot 13, the first accommodating slot 23, the second charging slot 14, and the second accommodating slot 24, to accommodate the first earbud and the second earbud.

[0134] FIG. 24 is a sectional view of an implementation of the earbud case 100 shown in FIG. 2a at a sectional line E-E.

[0135] As shown in FIG. 24, the Hall effect magnet 230 of the protective cover 20 may be fastened to the inner cover 2120. The charging case 10 may include a Hall effect sensor 164. The Hall effect sensor 164 may be located in the housing space 130. For example, the Hall effect sensor 164 may be fastened to the bottom surface 112 of the earbud holder 11. When the earbud case 100 is in a closed state, the Hall effect magnet 230 is disposed opposite to the Hall effect sensor 164 of the charging case 10 in the Z-axis direction. The Hall effect sensor 164 is configured to sense a magnetic field change of the Hall effect magnet 230, to obtain magnetic field strength. The Hall effect sensor 164 may be electrically connected to the mainboard 5 (not shown in the figure) via the first flexible circuit board 18 (not shown in the figure). The mainboard 5 may be provided with the controller, and the controller may be configured to determine, based on magnetic field strength of the Hall effect sensor 164, whether the earbud case 100 is in a closed state or an open state.

[0136] FIG. 25 is a partial sectional view of an implementation of the earbud case 100 shown in FIG. 2a at a sectional line F-F.

[0137] As shown in FIG. 25, the second suction magnet 220 may be fastened to the inner cover 2120. When the earbud case 100 is switched from an open state to a closed state, the second suction magnet 220 may be configured to help the protective cover 20 be reset. For example, in the Z-axis direction, the second suction magnet 220 may be disposed opposite to the first suction magnet 19. When the earbud case 100 is switched from an open state to a closed state, the first suction magnet 19 and the second suction magnet 19 may help, through attraction between each other, the earbud case 100 quickly switch a state and accurately reset the protective cover 20.

[0138] The foregoing specifically describes several implementations of the charging case 10 and the protective cover 20 with reference to the accompanying drawings. The following specifically describes an implementation of the rotating assembly 30 and a rotating connection manner of the charging case 10 and the protective cover 20 with reference to the accompanying drawings.

[0139] FIG. 26 is an exploded diagram of an implementation of the rotating assembly 30 shown in FIG. 3.

[0140] As shown in FIG. 26, the rotating assembly 30 may include a rotor 310, a first rotating shaft 320, a second rotating shaft 330, and a torsion spring 340. The second rotating shaft 330 and the first rotating shaft 320 are both rotatably connected to the rotor 310. One end of the torsion spring 340 is connected to the first rotating shaft 320, and the other end is connected to the second rotating shaft 330.

[0141] FIG. 27 is an assembly diagram of an implementation of the first rotating shaft 320 and the charging case 10 shown in FIG. 26.

[0142] As shown in FIG. 27, the first rotating shaft 320 may be fastened to the housing 12. For example, a middle part of the first rotating shaft 320 may be fastened in the first rotation hole 1221 of the convex part 122 of the housing 12, and two ends are exposed from the first rotation hole 1221.

[0143] FIG. 28 is a diagram of a structure of an implementation of the rotor 310 shown in FIG. 26. FIG. 29 is a diagram of a structure of the rotor 310 shown in FIG. 28 at another angle.

[0144] As shown in FIG. 28 and FIG. 29, the rotor 310 includes a rotor body 311, a first extending part 312, and a second extending part 313. The first extending part 312 and the second extending part 313 are spaced. The first extending part 312 and the second extending part 313 are respectively connected to two ends of the rotor body 311. The first extending part 312 is provided with a first connection hole 3121, and the second extending part 313 is provided with a second connection hole 3131. For example, the rotor body 311 includes a first side face 3111 and a second side face 3112 that are disposed back to back. The first extending part 312 and the second extending part 313 are connected to the first side face 3111 of the rotor body 311. The first extending part 312 and the second extending part 313 may be spaced in the first direction.

[0145] The rotor body 311 protrudes in a direction towards the second side face 3112, to form a protrusion part 3113. The rotor body 311 is provided with a seventh groove 3114, and the seventh groove 3114 is located in the protrusion part 3113. The protrusion part 3113, the first extending part 312, and the second extending part 313 are spaced. An opening of the seventh groove 3114 is located on the first side face 3111 of the rotor body 311. An opening of the seventh groove 3114 is located between the first extending part 312 and the second extending part 313.

[0146] The rotor body 311 may be provided with a third connection hole 3115 and a fourth connection hole 3116. The third connection hole 3115 and the fourth connection hole 3116 both communicate with the seventh groove 3114. The third connection hole 3115 and the fourth connection hole 3116 are spaced. For example, the third connection hole 3115 and the fourth connection hole 3116 may be spaced in the first direction, and are located on two sides of the seventh groove 3114.

[0147] FIG. 30 is an assembly diagram of an implementation of the second rotating shaft 330 and the housing 12 shown in FIG. 26.

[0148] As shown in FIG. 30, the second rotating shaft 330 is fastened to the rotor body 311. For example, one end of the second rotating shaft 330 is located in the third connection hole 3115, and the other end of the second rotating shaft 330 is located in the fourth connection hole 3116. A middle part of the second rotating shaft 330 is exposed from the seventh groove 3114.

[0149] FIG. 31 is a partial sectional view of an implementation of the earbud case 100 shown in FIG. 2a at a sectional line F-F. FIG. 32 is a diagram of a partial structure of an implementation in which the rotating assembly 30 is connected to the housing 12 of the charging case 10.

[0150] As shown in FIG. 31 and FIG. 32, when the rotating assembly 30 is rotatably connected to the charging case 10 and the protective cover 20, the rotor body 311 may be fastened to the protective cover 20. For example, the rotor body 311 may be fastened to the inner surface 2114 of the outer cover body 2111, and is located in the sixth groove 2115.

[0151] The middle part of the first rotating shaft 320 is fastened to the first rotation hole 1221 of the convex part 122 (the convex part 122 and the body part 121 are schematically distinguished by using dashed lines in FIG. 31). A first end of the first rotating shaft 320 is rotatably connected to the first extending part 312, and a second end of the first rotating shaft 320 is rotatably connected to the second extending part 313. The middle part of the first rotating shaft 320 is connected between the first end of the first rotating shaft 320 and the second end of the first rotating shaft 320. For example, one end of the first rotating shaft 320 is rotatably connected to the first connection hole 3121, and the other end may be rotatably connected to the second connection hole 3131. In this way, the middle part of the first rotating shaft 320 is fastened to the housing 12, and the first end of the first rotating shaft 320 and the second end of the first rotating shaft 320 are rotatably connected to the protective cover 20. The charging case 10 and the protective cover 20 are rotatably connected.

[0152] In some implementations, the convex part 122 and the body part 121 may be an integrated mechanical part. It may be understood that, compared with a manner in which the convex part 122 is connected to the body part 121 through adhesive or welding, the integrated mechanical part can prevent the convex part 122 from falling off from the body part 121, and the connection strength between the rotating assembly 30 and the housing 12 is better. In addition, one assembly process is saved, and costs can be reduced.

[0153] In some implementations, the convex part 122 may be connected to the top surface 1219 of the body part 121. The top surface 1219 of the body part 121 faces the protective cover 20. It may be understood that, compared with disposing the convex part 122 on which the first rotation hole 1221 is disposed on a side that is of the top surface 1219 of the body part 121 and that is away from the protective cover 20, disposing the convex part 122 on a side that is of the top surface 1219 of the body part 121 and that is close to the protective cover 20 can save internal space of the charging case 10, and prevent the convex part 122 from occupying the housing space 130 of the charging case 10.

[0154] The torsion spring 340 may include a first connection part 341, a second connection part 342, and a deformation part 343. The deformation part 343 is fastened between the first connection part 341 and the second connection part 342. The deformation part 343 has a deformation capability. When the deformation part 343 is subject to external force, deformation occurs. When the external force is removed, the deformation part 343 restores an initial shape. The first connection part 341 is rotatably connected to the first rotating shaft 320. The second connection part 342 may be rotatably connected to the second rotating shaft 330. For example, the first connection part 341 is located in the second rotation hole 1222 of the convex part 122. The first connection part 341 may be rotatably connected to the convex part 122. The second connection part 342 may be rotatably located in the seventh groove 3114, and is connected to the second rotating shaft 330.

[0155] When the earbud case 100 is switched from a closed state to an open state, the protective cover 20 is rotatably connected to the charging case 10 via the first rotating shaft 320, and the torsion spring 340 deforms by force. When the earbud case 100 is switched from an open state to a closed state, the protective cover 20 is reset by force used for restoring the torsion spring 340 to an original shape after the torsion spring 340 deforms.

[0156] FIG. 33 is a diagram of a structure of an implementation of a limiting piece 350 shown in FIG. 26.

[0157] As shown in FIG. 33, the rotating assembly 30 may further include the limiting piece 350. The limiting piece 350 may include a first limiting part 351 and a second limiting part 352. The first limiting part 351 may be provided with a first limiting hole 3511. The second limiting part 352 may be provided with a second limiting hole 3521.

[0158] FIG. 34 is a diagram of a partial structure of an implementation in which the rotating assembly 30 is connected to the housing 12 of the charging case 10. FIG. 35 is a partial sectional view of an implementation of the structure shown in FIG. 34 at a sectional line G-G.

[0159] As shown in FIG. 35 and FIG. 35, when the limiting piece 350 is connected to the first rotating shaft 320, one end of the first rotating shaft 320 may be located in the first limiting hole 3511, and the other end may be located in the second limiting hole 3521. The limiting piece 350 may be configured to limit two ends of the first rotating shaft 320 from extending a length of the first rotation hole 1221.

[0160] For example, the first limiting part 351 may be located between the convex part 122 of the housing 12 and the first extending part 312 of the rotor 310. The second limiting part 352 may be located between the convex part 122 of the housing 12 and the second extending part 313 of the rotor 310. The first limiting part 351 and the second limiting part 352 may be configured to reduce a risk of displacement of the first rotating shaft 320 in a length direction.

[0161] In some implementations, the rotating assembly 30 may further include a first elastic ring 36 and a second elastic ring 37. The first elastic ring 36 is sleeved on the first rotating shaft 320, and the first elastic ring 36 is located between the first rotating shaft 320 and a wall surface of the first limiting hole 3511. The second elastic ring 37 may be sleeved on the first rotating shaft 320. The second elastic ring may be located between the first rotating shaft 320 and a hole wall of the second limiting hole 3521. The first elastic ring 36 and the second elastic ring 37 have a deformation capability. When force is applied to the first elastic ring 36 and the second elastic ring 37, the first elastic ring 36 and the second elastic ring 37 may deform. The first elastic ring 36 abuts against the first rotating shaft 320 and the wall surface of the first limiting hole 3511. The second elastic ring 37 may abut against the first rotating shaft 320 and the wall surface of the second limiting hole 3521. In this way, connection strength between the first rotating shaft 320 and the limiting piece 350 may be better by disposing the first elastic ring 36 and the second elastic ring 37, thereby further reducing a risk of displacement of the first rotating shaft 320 in a length direction.

[0162] In some implementations, the first elastic ring 36 may be silicone. The second elastic ring 37 may also be silicone.

[0163] In this application, an earbud case 100 is specifically described with reference to related accompanying drawings. The earbud case 100 includes a case body 1, a first charging pin group 2, and a second charging pin group 3. The first charging pin group 2 and the second charging pin group 3 are spaced on the case body 1. The first charging pin group 2 and the second charging pin group 3 are spaced in a first direction, the first charging pin group 2 is configured to charge a first earbud, and the second charging pin group 3 is configured to charge a second earbud. The first charging pin group 2 includes a first positive charging pin 21 and a first negative charging pin 22. The second charging pin group 3 includes a second positive charging pin 31 and a second negative charging pin 32. A connection line between the first positive charging pin 21 and the second positive charging pin 31 is a first connection line. A connection line between the first negative charging pin 22 and the second negative charging pin 32 is a second connection line. The first connection line and the second connection line are crossed.

[0164] It may be understood that an arrangement direction of the first positive charging pin 21 and the first negative charging pin 22 in the first charging slot 13 is set to be opposite to an arrangement direction of the second positive charging pin 31 and the second negative charging pin 32 in the second charging slot 14. In this way, when the earbud case 100 is configured to charge the first earbud and the second earbud, the first earbud may be charged in the first charging slot 13, or may be charged in the second charging slot 14. In other words, when the first earbud and the second earbud are charged, there is no need to distinguish between a left ear and a right ear, and the first positive charging pin 21 and the first negative charging pin 22 may charge the first earbud, or may charge the second earbud. The second positive charging pin 31 and the second negative charging pin 32 may charge the first earbud, or may charge the second earbud. In this way, user experience is better.

[0165] It should be noted that embodiments in this application and features in embodiments may be combined with each other without a conflict, and any combination of features in different embodiments also falls within the protection scope of this application. In other words, the foregoing described plurality of embodiments may be further combined according to an actual requirement.

[0166] It should be noted that all the foregoing accompanying drawings are example figures of this application, and do not represent actual sizes of products. In addition, a size proportional relationship between components in the accompanying drawings is not intended to limit an actual product in this application.

[0167] The foregoing descriptions are merely specific implementations of this application, but are not intended to limit the protection scope of this application. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in this application shall fall within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

1. An earbud case, comprising a case body, a first charging pin group, and a second charging pin group; the first charging pin group and the second charging pin group are disposed on the case body, the first charging pin group and the second charging pin group are spaced in a first direction, the first charging pin group is configured to charge a first earbud, and the second charging pin group is configured to charge a second earbud; the first charging pin group comprises a first positive charging pin and a first negative charging pin, the first positive charging pin and the first negative charging pin are spaced in a second direction, and the second direction is different from the first direction; the second charging pin group comprises a second positive charging pin and a second negative charging pin, the second positive charging pin and the second negative charging pin are spaced in a third direction, and the third direction is different from the first direction; and a connection line between the first positive charging pin and the second positive charging pin is a first connection line, a connection line between the first negative charging pin and the second negative charging pin is a second connection line, and the first connection line and the second connection line are crossed.

2. The earbud case according to claim 1, wherein a distance between the second positive charging pin and the first negative charging pin is less than a distance between the second negative charging pin and the first positive charging pin.

3. The earbud case according to claim 1 or 2, wherein a distance between the first positive charging pin and the first negative charging pin is equal to a distance between the second positive charging pin and the second negative charging pin.

4. The earbud case according to any one of claims 1 to 3, wherein the first positive charging pin and the second negative charging pin are symmetric with aspect to a symmetry plane, the first negative charging pin and the second positive charging pin are symmetric with aspect to the symmetry plane, and the symmetry plane is perpendicular to the first direction.

5. The earbud case according to any one of claims 1 to 4, wherein the case body comprises an earbud holder and a housing, the earbud holder is connected to an inner side of the housing, and the earbud holder and the housing enclose housing space; the earbud case further comprises a battery, and the battery is disposed in the housing space; the earbud holder is provided with a first charging slot and a second charging slot, and the first charging slot, the second charging slot, and the housing space are spaced from each other; the first positive charging pin and the first negative charging pin are disposed on the earbud holder, one end of the first positive charging pin and one end of the first negative charging pin are exposed relative to the first charging slot, and the other end of the first positive charging pin and the other end of the first negative charging pin are located in the housing space, and are electrically connected to the battery; and the second positive charging pin and the second negative charging pin are disposed on the earbud holder, one end of the second positive charging pin and one end of the second negative charging pin are exposed relative to the second charging slot, and the other end of the second positive charging pin and the other end of the second negative charging pin are located in the housing space, and are electrically connected to the battery.

6. The earbud case according to claim 5, wherein the housing is provided with a charging channel, and the charging channel communicates the housing space; the earbud case comprises a USB male connector, the USB male connector and the battery are spaced, a part of the USB male connector is disposed in the housing space, and a part is disposed in the charging channel; and the USB male connector is electrically connected to the first positive charging pin, the first negative charging pin, the second positive charging pin, and the second negative charging pin.

7. The earbud case according to claim 6, wherein the earbud case comprises a speaker, the speaker is disposed in the housing space, and the speaker, the USB male connector, and the battery are spaced from each other; and a gap exists between the USB male connector and a wall surface of the charging channel, and a sound emitted by the speaker is propagated to the outside of the case body through the gap and the charging channel.

8. The earbud case according to claim 5, wherein the earbud case comprises a wireless charging coil, the wireless charging coil is located in the housing space, and the wireless charging coil and the battery are spaced from each other; and the wireless charging coil is electrically connected to the first positive charging pin, the first negative charging pin, the second positive charging pin, and the second negative charging pin.

9. The earbud case according to claim 5, wherein the earbud case further comprises a protective cover and a first rotating shaft, and the protective cover is rotatably connected to one end of the housing; and a middle part of the first rotating shaft is fastened to the housing, a first end part of the first rotating shaft and a second end part of the first rotating shaft are rotatably connected to the protective cover, and the middle part of the first rotating shaft is connected between the first end part of the first rotating shaft and the second end part of the first rotating shaft.

10. The earbud case according to claim 9, wherein the housing comprises a body part and a convex part, the convex part is convexly disposed on a surface that is of the body part and that faces the protective cover, and the earbud holder is connected to an inner side of the body part; and the middle part of the first rotating shaft is fastened to the convex part.

11. The earbud case according to any one of claims 5 to 10, wherein the earbud holder is disposed in an inclined manner relative to a side wall of the housing.

12. An earbud case assembly, comprising an earbud and the earbud case according to any one of claims 1 to 11, wherein the earbud is disposed in the earbud case.

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