Earphone charging box and wireless earphone

Abstract

The application discloses an earphone charging box and wireless earphones, the earphone charging box comprises a lower shell, an ear drag, an upper shell and a connecting rod assembly, the lower shell is provided with a containing cavity and a movable opening communicating with the containing cavity, and one side of the lower shell away from the containing cavity is further provided with a limiting groove; the ear drag is movably arranged in the limiting groove, and the ear drag is provided with a placing groove for placing an earphone unit; the upper shell is rotationally connected with the lower shell; one end of the connecting rod assembly is rotationally connected with one side of the upper shell adjacent to the movable opening, and the other end of the connecting rod assembly is rotationally connected with one side of the ear drag facing the movable opening; wherein the earphone charging box has a first state in which the upper shell covers the limiting groove and a second state in which the upper shell opens the limiting groove; in the first state, the ear drag is contained in the limiting groove; in the second state, part of the upper shell extends into the containing cavity through the movable opening, and the connecting rod assembly is driven to push the ear drag to protrude from the groove opening of the limiting groove. The earphone charging box effectively increases the space for taking the earphone unit, and makes it more convenient and comfortable to take and place the earphone unit.

Description

Technical Field

[0001] This invention relates to the field of wireless earphone technology, and in particular to an earphone charging case and a wireless earphone using the charging case. Background Technology

[0002] Wireless earbuds eliminate the need for headphone wires, solving problems such as tangled wires and inconvenience associated with wired earbuds. However, wireless earbuds require charging after prolonged use; for example, TWS earbuds often come with a corresponding charging case.

[0003] In related technologies, TWS earphone charging cases include a bottom shell and a top cover. The top cover uses a flip-top design, often with a hinge. To open the charging case, the user applies external force to flip the top cover open, allowing for the placement and removal of the earphones. To close the charging case, external force is also required to flip the top cover closed. However, this method makes it difficult to remove the earphones and inconvenient to close. Furthermore, excessive force applied to this traditional flip-top design can damage the hinge joint, affecting the lifespan of the charging case. Summary of the Invention

[0004] The main objective of this invention is to provide an earphone charging case and wireless earphones. The earphone charging case is designed to facilitate the handling of earphone units, effectively increasing the space for handling earphone units and making it more convenient and comfortable to take out and place earphone units.

[0005] To achieve the above objectives, the present invention provides an earphone charging case, the earphone charging case comprising:

[0006] The lower shell has a receiving cavity and a movable opening communicating with the receiving cavity, and a limiting groove is also provided on the side of the lower shell facing away from the receiving cavity;

[0007] Ear clip, the ear clip is movably disposed in the limiting groove, the ear clip is provided with a placement groove for placing the earphone unit;

[0008] Upper shell, the upper shell being rotatably connected to the lower shell; and

[0009] A linkage assembly, one end of which is rotatably connected to the side of the upper shell adjacent to the movable opening, and the other end of which is rotatably connected to the side of the earpiece facing the movable opening;

[0010] The earphone charging case has a first state in which the upper shell covers the limiting groove and a second state in which the upper shell opens the limiting groove.

[0011] In the first state, the earpiece is placed within the limiting groove;

[0012] In the second state, part of the upper shell extends into the receiving cavity through the movable opening, and drives the connecting rod assembly to push the earpiece to protrude out of the groove of the limiting groove.

[0013] In one embodiment, the upper shell is hemispherical, and the lower shell includes:

[0014] The outer casing is hemispherical in shape, and a receiving groove is formed within the outer casing; and

[0015] The inner shell is disposed within the receiving groove and adjacent to the opening of the receiving groove. The inner shell and the receiving groove enclose the receiving cavity and the movable opening. The limiting groove is provided on the side of the inner shell facing away from the receiving cavity.

[0016] In one embodiment, a support platform is provided on the opening of the outer shell adjacent to the receiving groove. The support platform is located on the side of the outer shell facing the movable opening, and the inner shell is supported and fixed to the support platform.

[0017] In one embodiment, the inner shell extends toward the movable opening to form a support arm, the support arm is provided with a positioning element, the upper shell is provided with a sliding groove corresponding to the positioning element, and the end of the positioning element away from the inner shell is slidably limited within the sliding groove;

[0018] The extension direction of the groove is consistent with the rotation direction of the upper shell.

[0019] In one embodiment, the groove has a first end and a second end opposite to each other, the first end being located on the side of the upper shell away from the movable opening;

[0020] In the first state, the first end is located on the side of the inner shell facing away from the movable opening, and the positioning member is located at the second end;

[0021] In the second state, the positioning element is located at the first end, and the second end is located at the movable opening.

[0022] In one embodiment, the outer shell is further provided with an abutment platform near the opening of the receiving groove. The abutment platform is located between the outer shell and the inner shell, and is located on the side of the inner shell facing away from the movable opening. The upper shell is provided with an abutment protrusion on the side away from the movable opening. At least one of the abutment platform and the abutment protrusion is provided with a magnetic attraction member. In the first state, the abutment protrusion is attracted and connected to the abutment platform through the magnetic attraction member.

[0023] And / or, the outer shell is further provided with a stop rib, the stop rib is located in the receiving cavity, and in the second state, one end of the upper shell passing through the movable opening abuts against and limits the stop rib.

[0024] In one embodiment, the bottom wall of the limiting groove is provided with a guide groove communicating with the receiving cavity; the earpiece includes:

[0025] The main body is provided with the placement groove, and the main body is movably disposed within the limiting groove;

[0026] A limiting part is provided on the side of the main body facing away from the placement groove. One end of the limiting part, away from the main body, moves through the guide groove and is provided with a limiting boss.

[0027] A rotating part is provided on the side of the main body facing the movable opening, and the rotating part is rotatably connected to the connecting rod assembly;

[0028] In the second state, when the connecting rod assembly pushes the main body away from the limiting groove, the limiting boss slides and abuts against the side of the main body facing away from the placement groove, and the limiting part can slide along the guide groove.

[0029] In one embodiment, the extension direction of the guide groove is perpendicular to the axial direction of the rotation of the upper shell;

[0030] And / or, the lower shell has a protruding rib near the opening of the limiting groove, the rib is located on the side of the limiting groove away from the movable opening, and the extension direction of the rib is parallel to the axial direction of the rotation of the upper shell.

[0031] And / or, the main body is provided with a sliding boss on the side facing away from the placement groove, and the extension direction of the sliding boss is perpendicular to the axial direction of the rotation of the upper shell.

[0032] And / or, the lower shell is provided with two limiting grooves on the side opposite to the accommodating cavity, and the earring and the connecting rod assembly are both included in two, each earring is movably disposed in one of the limiting grooves and is rotatably connected to one of the connecting rod assemblies.

[0033] In one embodiment, the upper shell is further provided with a rotating platform near the movable opening; the linkage assembly includes a first link and a second link, one end of the first link is rotatably connected to the rotating part, the other end of the first link is rotatably connected to one end of the second link, and the other end of the second link is rotatably connected to the rotating platform;

[0034] In the first state, the first link and the second link are set at an angle.

[0035] The present invention also proposes a wireless earphone, the wireless earphone comprising:

[0036] The aforementioned earphone charging case; and

[0037] The earphone unit is placed in the placement slot of the earphone charging case.

[0038] The earphone charging case of this invention features a receiving cavity and a movable opening connecting the receiving cavity within the lower shell, allowing the upper shell to be rotatably connected to the lower shell. The movable opening provides space for the upper shell to be flipped open, while the receiving cavity provides accommodating space for the flipped-open upper shell. This facilitates opening of the upper shell relative to the lower shell while preventing interference from the lower shell during the opening process, and also provides a larger opening for the upper shell. Simultaneously, a limiting groove, spaced from the movable opening, is provided on the side of the lower shell facing away from the receiving cavity. The ear tips are movably positioned within this limiting groove, facilitating the installation of the ear tips. A placement slot on the ear tips allows for convenient placement of the earphones. A connecting rod assembly is further included. One end of the connecting rod assembly is rotatably connected to the side of the upper shell near the movable opening, and the other end of the connecting rod assembly is rotatably connected to the side of the earbud facing the movable opening. Thus, when the upper shell opens relative to the lower shell, part of the upper shell passes through the movable opening and extends into the receiving cavity, driving the connecting rod assembly to push the earbud out of the limiting groove. This pushes the earphone unit inside the earbud towards the opening of the lower shell, increasing the space for taking out the earphone unit and making it more convenient and comfortable to take out and put in the earphone unit. When the upper shell closes relative to the lower shell, part of the upper shell passes through the movable opening and completely covers the lower shell, driving the connecting rod assembly to pull the earbud back to be accommodated in the limiting groove, so as to avoid interfering with the closing of the upper shell. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the headphone charging case in a first state according to an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the structure of the wireless earphone in the second state according to an embodiment of the present invention;

[0042] Figure 3 This is a cross-sectional schematic diagram of a wireless earphone in a first state according to an embodiment of the present invention;

[0043] Figure 4 This is a cross-sectional schematic diagram of a wireless earphone in a second state according to an embodiment of the present invention;

[0044] Figure 5This is a cross-sectional view of the main body of the wireless earphone in the limiting groove in a first state according to an embodiment of the present invention;

[0045] Figure 6 This is a cross-sectional schematic diagram of the main body of the wireless earphone in a second state, according to an embodiment of the present invention.

[0046] Figure 7 This is a cross-sectional schematic diagram of the wireless earphone in a second state, according to an embodiment of the present invention, showing the main body of the earphone completely detached from the limiting groove.

[0047] Explanation of icon numbers:

[0048]

[0049]

[0050] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0053] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0054] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0055] Wireless earbuds eliminate the need for headphone wires, solving problems such as tangled wires and inconvenience associated with wired earbuds. However, wireless earbuds require charging after prolonged use; for example, TWS earbuds often come with a corresponding charging case.

[0056] In related technologies, TWS earphone charging cases include a bottom shell and a top cover. The top cover uses a flip-top design, often with a hinge. To open the charging case, the user applies external force to flip the top cover open, allowing for the placement and removal of the earphones. To close the charging case, external force is also required to flip the top cover closed. However, this method makes it difficult to remove the earphones and inconvenient to close. Furthermore, excessive force applied to this traditional flip-top design can damage the hinge joint, affecting the lifespan of the charging case.

[0057] Based on the above concepts and problems, this invention proposes an earphone charging case 100. It is understood that the earphone charging case 100 is used in wireless earphones 600, serving two purposes: firstly, to charge the individual earphone units 500, and secondly, to provide storage space for the earphone units 500, thus avoiding inconvenience in storing them.

[0058] In this embodiment, the wireless earphone 600 includes two earphone units 500, which are respectively used for wearing in the user's left and right ears. It is understood that the two earphone units 500 are symmetrically arranged. In this embodiment, the wireless earphone 600 is described using a TWS earphone as an example.

[0059] Please refer to the reference. Figures 1 to 7 As shown, in this embodiment of the invention, the earphone charging case 100 includes a lower shell 1, an ear hook 2, an upper shell 3, and a connecting rod assembly 4. The lower shell 1 is provided with a receiving cavity 11 and an opening 12 communicating with the receiving cavity 11. The side of the lower shell 1 facing away from the receiving cavity 11 is also provided with a limiting groove 141. The ear hook 2 is movably disposed in the limiting groove 141. The ear hook 2 is provided with a placement groove 21 for placing the earphone unit 500. The upper shell 3 is rotatably connected to the lower shell 1. One end of the connecting rod assembly 4 is rotatably connected to the side of the upper shell 3 adjacent to the opening 12, and the other end of the connecting rod assembly 4 is rotatably connected to the side of the ear hook 2 facing the opening 12.

[0060] In this embodiment, the lower shell 1 and upper shell 3 of the earphone charging case 100 cooperate to form the main outer shell structure of the earphone charging case 100. To facilitate opening the upper shell 3, the upper shell 3 is rotatably connected to the lower shell 1. It is understood that the upper shell 3 and the lower shell 1 can be connected by a hole and shaft, hinge, or other structures that can achieve a rotatable connection, and are not limited here.

[0061] Understandably, the lower shell 1 provides a mounting base for components such as the ear hook 2 and the connecting rod assembly 4. To facilitate charging of the earphone unit 500, the lower shell 1 also includes charging components and a power supply, which are not limited here. In this embodiment, the lower shell 1 has a receiving cavity 11. To facilitate the opening of the upper shell 3 relative to the lower shell 1, and to provide space for the portion of the upper shell 3 that extends beyond its hinges during the flipping process, the lower shell 1 also has an opening 12 communicating with the receiving cavity 11.

[0062] In this embodiment, a limiting groove 141 is also provided on the side of the lower shell 1 facing away from the receiving cavity 11, and the limiting groove 141 is spaced apart from the movable opening 12. Optionally, the movable opening 12 is located on one side of the limiting groove 141 and is disposed near the edge of the lower shell 1. It can be understood that by providing the ear clip 2, the ear clip 2 is movably disposed in the limiting groove 141, and a placement groove 21 is provided on the ear clip 2, thereby using the placement groove 21 to place and receive the earphone unit 500.

[0063] Optionally, the lower shell 1 is provided with two limiting grooves 141, which are spaced apart and located on the same side of the movable opening 12. Two earpieces 2 are included, each earpiece 2 corresponding to one limiting groove 141. In this embodiment, the connecting rod assembly 4 can be one or two; optionally, two connecting rod assemblies 4 are included, each connecting rod assembly 4 connecting one earpiece 2 and the upper shell 3.

[0064] In this embodiment, the earphone charging case 100 has a first state where the upper shell 3 is closed to the limiting groove 141 and a second state where the upper shell 3 is open to the limiting groove 141. It can be understood that when the earphone charging case 100 is in the first state, the upper shell 3 completely covers the lower shell 1. At this time, the upper shell 3 covers the ear tips 2 and the connecting rod assembly 4. That is, the upper shell 3 is located above the limiting groove 141 and the movable opening 12, and completely covers the lower shell 1. This effectively prevents the ear tips 2 and the earphone units 500 in the placement slot 21 from falling or shifting. When the earphone charging case 100 is in the second state, the upper shell 3 opens the lower shell 1. This can be achieved by the upper shell 3 opening the lower shell 1; that is, the earphone charging case 100 can be in the second state throughout the process of the upper shell 3 opening from the closed state to its maximum position. No limitation is made here.

[0065] Of course, in the second state, the earphone charging case 100 has a fully open state where the upper shell 3 is completely opened and the lower shell 1 is fully opened, and a half-open state where the upper shell 3 is between the first closed state and the fully open state.

[0066] Understandably, when the earphone charging case 100 is in the first state, the ear tips 2 are housed within the limiting groove 141. When the earphone charging case 100 is in the second state, that is, during the process of the upper shell 3 opening the lower shell 1 to the fully open state, part of the upper shell 3 extends through the movable opening 12 into the receiving cavity 11, and drives the connecting rod assembly 4 to push the ear tips 2 out of the groove of the limiting groove 141.

[0067] The headphone charging case 100 of the present invention provides a receiving cavity 11 and a movable opening 12 communicating with the receiving cavity 11 in the lower shell 1, thereby rotatably connecting the upper shell 3 and the lower shell 1. The movable opening 12 provides a movable space for the upper shell 3 to be flipped open, and the receiving cavity 11 provides a receiving space for the flipped-open upper shell 3. This facilitates the opening of the upper shell 3 relative to the lower shell 1, avoids interference from the lower shell 1 to the opening process of the upper shell 3, and provides a larger opening for the upper shell 3 to be opened. At the same time, a limiting groove 141 spaced apart from the movable opening 12 is provided on the side of the lower shell 1 facing away from the receiving cavity 11. The earphone jack 2 is movably disposed in the limiting groove 141, thereby facilitating the installation of the earphone jack 2. By providing a placement groove 21 on the earphone jack 2, the earphone unit 500 can be conveniently placed in the placement groove 21 of the earphone jack 2. A connecting rod assembly is further provided. 4. One end of the connecting rod assembly 4 is rotatably connected to the side of the upper shell 3 adjacent to the movable opening 12, and the other end of the connecting rod assembly 4 is rotatably connected to the side of the earbud 2 facing the movable opening 12. Thus, during the opening of the upper shell 3 relative to the lower shell 1, part of the upper shell 3 passes through the movable opening 12 and extends into the receiving cavity 11, and drives the connecting rod assembly 4 to push the earbud 2 to protrude from the groove of the limiting groove 141. In this way, the earphone unit 500 in the earbud 2 can be pushed towards the opening of the upper shell 3 to open the lower shell, so as to increase the space for taking out the earphone unit 500 and making it more convenient and comfortable to take out and put in the earphone unit 500. During the closing of the upper shell 3 relative to the lower shell 1, part of the upper shell 3 passes through the movable opening 12 and completely covers the lower shell 1, and drives the connecting rod assembly 4 to pull the earbud 2 back to be accommodated in the limiting groove 141, so as to avoid interference with the closing of the upper shell 3.

[0068] In one embodiment, the upper shell 3 is hemispherical, and the lower shell 1 includes an outer shell 13 and an inner shell 14. The outer shell 13 is hemispherical and has a receiving groove formed inside it. The inner shell 14 is disposed in the receiving groove and is disposed adjacent to the opening of the receiving groove. The inner shell 14 and the receiving groove enclose a receiving cavity 11 and a movable opening 12. A limiting groove 141 is provided on the side of the inner shell 14 facing away from the receiving cavity 11.

[0069] In this embodiment, as Figures 2 to 7 As shown, the upper shell 3 can be configured in a hemispherical shape, and the outer shell 13 of the lower shell 1 is also configured in a hemispherical shape. It can be understood that the outer surface of the upper shell 3 is spherical, and a spherical groove structure is formed inside the upper shell 3; that is, the inner wall surface of the upper shell 3 can be spherical. Similarly, the outer surface of the outer shell 13 of the lower shell 1 is spherical, and a spherical groove is formed inside the outer shell 13; that is, the inner wall surface of the upper shell 3 can be spherical.

[0070] Understandably, when the earphone charging case 100 is in the first state, the upper shell 3 completely covers the receiving groove of the outer shell 13, and at this time, the upper shell 3 and the outer shell 13 cooperate to form a structure similar to a spherical shell. In this embodiment, in order to improve the aesthetic appearance of the earphone charging case 100, the spherical radius of the upper shell 3 is smaller than that of the outer shell 13. That is, when the earphone charging case 100 is in the second state, that is, during the process of the upper shell 3 opening the receiving groove of the outer shell 13, part of the upper shell 3 passes through the movable opening 12 and is received in the receiving cavity 11.

[0071] In this embodiment, the upper shell 3 has a rotating connection portion that is rotatably connected to the outer shell 13 of the lower shell 1. This rotating connection portion is located on opposite sides of the receiving groove of the upper shell 3 and the lower shell 1, that is, the upper shell 3 rotates around the line connecting the two rotating connection portions. It can be understood that the movable opening 12 is located on one side of the line connecting the two rotating connection portions, and the inner shell 14 is located on the other side of the line connecting the two rotating connection portions.

[0072] Understandably, the inner shell 14 is disposed within the receiving groove and adjacent to the opening of the receiving groove, such that the inner shell 14 and the receiving groove enclose a receiving cavity 11, and one side of the inner shell 14 is spaced from the groove wall of the receiving groove to form a movable opening 12. In this embodiment, the inner shell 14 may optionally be disposed in a semi-disc shape, with the arcuate periphery of the inner shell 14 connected to the groove wall of the receiving groove, and the straight edge of the inner shell 14 spaced from the groove wall of the receiving groove to form a movable opening 12. A limiting groove 141 is provided on the side of the inner shell 14 facing away from the receiving cavity 11.

[0073] To facilitate the installation and support of the inner shell 14, in this embodiment, as follows: Figures 3 to 7 As shown, a support platform 131 protrudes from the groove of the outer shell 13 adjacent to the receiving groove. The support platform 131 is located on the side of the outer shell 13 facing the movable opening 12, and the inner shell 14 is supported and fixed to the support platform 131.

[0074] In this embodiment, the support platform 131 can be a protrusion or boss structure protruding from the inner wall of the outer shell 13. Optionally, the support platform 131 extends circumferentially along the receiving groove, with both ends of the support platform 131 located at the movable opening 12. This increases the contact area between the inner shell 14 and the support platform 131, thereby improving connection stability. It is understood that the support platform 131 extends from one rotating connection portion to another rotating connection portion, forming an arc-shaped ring platform structure. Of course, in other embodiments, the support platform 131 includes multiple protrusions or boss structures, which are arranged at intervals along the circumferential direction of the receiving groove, extending from one rotating connection portion to another rotating connection portion; this is not limited here.

[0075] Understandably, to further improve the connection stability of the inner shell 14, the support platform 131 and the inner shell 14 are fixedly connected by adhesive dispensing. Of course, in other embodiments, the inner shell 14 may also be integrally formed on the support platform 131, which is not limited here.

[0076] To further improve the appearance of the earphone charging case 100, the periphery of the inner shell 14 facing away from the movable opening 12 is spaced from the outer shell 13 to form a receiving groove 142. In the first state, the end of the upper shell 3 away from the movable opening 12 is accommodated in the receiving groove 142.

[0077] Understandably, the accommodating groove 142 not only provides more space for the periphery of the upper shell 3, but also provides a supporting foundation for the upper shell 3. In this embodiment, the accommodating groove 142 is formed by the inner wall of the outer shell 13, the support platform 131, and the outer wall of the inner shell 14, so that when the upper shell 3 covers the lower shell 1, the periphery of the upper shell 3 is supported on the support platform 131.

[0078] In one embodiment, the inner shell 14 extends toward the movable opening 12 to form a support arm 143. The support arm 143 is provided with a positioning member 144. The upper shell 3 is provided with a sliding groove 31 corresponding to the positioning member 144. The end of the positioning member 144 away from the inner shell 14 is slidably limited in the sliding groove 31. The extension direction of the sliding groove 31 is consistent with the rotation direction of the upper shell 3.

[0079] In this embodiment, as Figures 2 to 4 As shown, the inner shell 14 and the support arm 143 can be an integrally formed structure. The support arm 143 protrudes from the side of the inner shell 14 facing the movable opening 12 and extends into the movable opening 12, so that the support arm 143 is spaced from the inner wall of the outer shell 13, thus providing space for the upper shell 3 to move. Optionally, the distance between the support arm 143 and the inner wall of the outer shell 13 is greater than the thickness of the upper shell 3.

[0080] Understandably, a positioning plate structure protrudes from the side of the support arm 143 facing away from the receiving cavity 11. The positioning plate structure is arc-shaped on the side facing away from the receiving cavity 11, and this arc shape is adapted to the arc surface of the inner wall of the upper shell 3. The positioning element 144 is disposed on the positioning plate structure. Optionally, the positioning element 144 is fixedly disposed on the positioning plate structure of the support arm 143 by means of bolts or other structures.

[0081] In this embodiment, the upper shell 3 is provided with a groove 31 corresponding to the positioning member 144, and the end of the positioning member 144 away from the inner shell 14 is slidably limited within the groove 31. It can be understood that during the rotational opening or closing of the upper shell 3 relative to the lower shell 1, the positioning member 144 slides relative to the upper shell 3 within the groove 31. Optionally, the extending direction of the groove 31 is consistent with the rotational direction of the upper shell 3.

[0082] Understandably, the slide groove 31 extends along the spherical inner wall of the upper shell 3, and the extension direction of the slide groove 31 is perpendicular to the line connecting the two rotating connection parts of the upper shell 3.

[0083] In one embodiment, the slide 31 has a first end 311 and a second end 312 opposite to each other. The first end 311 is located on the side of the upper shell 3 away from the movable opening 12. In a first state, the first end 311 is located on the side of the inner shell 14 away from the movable opening 12, and the positioning member 144 is located at the second end 312. In a second state, the positioning member 144 is located at the first end 311, and the second end 312 is located at the movable opening 12.

[0084] In this embodiment, as Figure 4 As shown, the extension length of the slide groove 31 is equal to or less than the arc length of the spherical inner wall surface of the upper shell 3 in its diameter direction. Optionally, the extension length of the slide groove 31 is equal to half the arc length of the spherical inner wall surface of the upper shell 3 in its diameter direction. Understandably, with this configuration, the opening degree of the upper shell 3 to the lower shell 1 can be controlled by the cooperation between the positioning element 144 and the slide groove 31.

[0085] In one embodiment, the outer shell 13 is provided with an abutment platform 132 near the opening of the receiving groove. The abutment platform 132 is located between the outer shell 13 and the inner shell 14, and is located on the side of the inner shell 14 away from the movable opening 12. The upper shell 3 is provided with an abutment boss 32 on the side away from the movable opening 12. At least one of the abutment platform 132 and the abutment boss 32 is provided with a magnetic attracting member 33. In the first state, the abutment boss 32 is attracted and connected to the abutment platform 132 through the magnetic attracting member 33.

[0086] In this embodiment, as Figure 3 As shown, the magnetic attractor 33 can be a magnet or a structure made of a magnetically attracting material. The abutment platform 132 of the outer shell 13 can be protruding from the wall of the receiving groove or from the support platform 131. It is understood that only one of the abutment platform 132 and the abutment protrusion 32 may be provided with a magnetic attractor 33, while the other may be made of iron or a magnetic material; of course, both the abutment platform 132 and the abutment protrusion 32 may be provided with magnetic attractors 33, which is not limited here. Optionally, the abutment platform 132 and the abutment protrusion 32 are located at the center line of the two rotating connection parts of the upper shell 3.

[0087] In one embodiment, the outer shell 13 is further provided with a stop rib 133, which is located in the receiving cavity 11. In the second state, one end of the upper shell 3 passing through the movable opening 12 abuts against the stop rib 133 and is limited.

[0088] In this embodiment, as Figures 3 to 7 As shown, by providing a stop rib 133 within the accommodating cavity 11, the opening degree of the upper shell 3 opening into the lower shell 1 is further limited. It is understood that the stop rib 133 can be located below the inner shell 14. Optionally, the stop rib 133 is located below the line connecting the two rotating connection points of the upper shell 3, that is, the stop rib 133 and the two rotating connection points of the upper shell 3 are located on the same plane.

[0089] In one embodiment, the bottom wall of the limiting groove 141 is provided with a guide groove 145 communicating with the receiving cavity 11; the earring 2 includes a main body 22, a limiting part 23 and a rotating part 24. The main body 22 is provided with a placement groove 21 and is movably disposed in the limiting groove 141. The limiting part 23 is disposed on the side of the main body 22 facing away from the placement groove 21. The end of the limiting part 23 away from the main body 22 moves through the guide groove 145 and is provided with a limiting boss 231. The rotating part 24 is disposed on the side of the main body 22 facing the movable opening 12 and is rotatably connected to the connecting rod assembly 4. In the second state, when the connecting rod assembly 4 pushes the main body 22 away from the limiting groove 141, the limiting boss 231 slides and abuts against the side of the main body 22 facing away from the placement groove 21, and the limiting part 23 can slide along the guide groove 145.

[0090] In this embodiment, as Figures 2 to 7 As shown, by providing a guide groove 145 on the bottom wall of the limiting groove 141, and providing a limiting part 23 below the main body 22 of the earbud 2, and providing a limiting boss 231 at the end of the limiting part 23 away from the main body 22, the end of the limiting part 23 away from the main body 22 moves through the guide groove 145. Thus, when the earphone charging case 100 is in the second state, that is, when the upper shell 3 is opened relative to the lower shell 1, the main body 22 of the earbud 2 is pushed by the connecting rod assembly 4 in the depth direction of the limiting groove 141, causing displacement. At this time, the limiting part 23 can move through the guide groove 145. The inner groove 145 moves along the depth of the limiting groove 141 so that the limiting boss 231 slides and abuts against the side of the main body 22 facing away from the placement groove 21. As the upper shell 3 continues to open relative to the lower shell 1, the main body 22 of the ear strap 2 is pushed away from the opening of the limiting groove 141 by the connecting rod assembly 4. At this time, the connecting rod assembly 4 continues to push the main body 22 to move away from the movable opening 12. At this time, the limiting part 23 moves along the extension direction of the guide groove 145, and the limiting boss 231 always slides and abuts against the side of the main body 22 facing away from the placement groove 21.

[0091] Optionally, the extension direction of the guide groove 145 is perpendicular to the axial direction of the rotation of the upper shell 3, that is, the extension direction of the guide groove 145 is perpendicular to the line connecting the two rotating connection parts of the upper shell 3.

[0092] In one embodiment, such as Figures 2 to 7 As shown, a protruding strip 146 is provided on the groove opening of the lower shell 1 adjacent to the limiting groove 141. The protruding strip 146 is located on the side of the limiting groove 141 away from the movable opening 12, and the extension direction of the protruding strip 146 is parallel to the axial direction of the rotation of the upper shell 3.

[0093] Understandably, by providing a protruding strip 146 on the inner shell 14, with the strip 146 located on the side of the limiting groove 141 away from the movable opening 12, the friction between the bottom surface of the main body 22 of the ear clip 2 and the inner shell 14 is reduced, facilitating the smooth pushing of the ear clip 2. Optionally, the extending direction of the protruding strip 146 is perpendicular to the extending direction of the guide groove 145.

[0094] In one embodiment, such as Figures 2 to 7 As shown, a sliding boss 25 is also provided on the side of the main body 22 facing away from the placement groove 21. The extending direction of the sliding boss 25 is perpendicular to the axial direction of the rotation of the upper shell 3. It can be understood that the provision of the sliding boss 25 can further reduce the friction between the bottom of the main body 22 and the protrusion 146 or the inner shell 14.

[0095] In one embodiment, such as Figure 2 As shown, the lower shell 1 has two limiting grooves 141 spaced apart on the side opposite to the receiving cavity 11. The earring 2 and the connecting rod assembly 4 each include two grooves. Each earring 2 is movably disposed in one limiting groove 141 and rotatably connected to one connecting rod assembly 4. It can be understood that the arrangement direction of the two limiting grooves 141 is consistent with the direction of the line connecting the two rotatable connecting parts of the upper shell 3.

[0096] Optionally, the support arm 143 is located between two limiting grooves 141, and the two limiting grooves 141 are symmetrically arranged about the support arm 143.

[0097] In one embodiment, the upper shell 3 is further provided with a rotating platform 34 near the movable opening 12; the connecting rod assembly 4 includes a first connecting rod 41 and a second connecting rod 42, one end of the first connecting rod 41 is rotatably connected to the rotating part 24, the other end of the first connecting rod 41 is rotatably connected to one end of the second connecting rod 42, and the other end of the second connecting rod 42 is rotatably connected to the rotating platform 34; wherein, in the first state, the first connecting rod 41 and the second connecting rod 42 are arranged at an included angle.

[0098] In this embodiment, as Figures 2 to 7 As shown, the first connecting rod 41 and the second connecting rod 42 can be selected as columnar, rod-shaped, or plate-shaped structures. The first connecting rod 41 and the second connecting rod 42 can be rotatably connected by a hole-shaft connection. In order to allow the first connecting rod 41 and the second connecting rod 42 to push or pull the lug 2 as the upper shell 3 opens or closes, the connection point of the first connecting rod 41 and the second connecting rod 42 is set at an angle, that is, the first connecting rod 41 and the second connecting rod 42 cannot rotate to overlap each other.

[0099] It should be noted that one of the first connecting rod 41 and the second connecting rod 42 is provided with a rotating groove, and the other is provided with a rotating lug. The rotating lug extends into the rotating groove and is rotatably connected to the groove wall via a rotating shaft. To ensure that the earphone charging case 100 is in the first state, the first connecting rod 41 and the second connecting rod 42 are arranged at an angle. A limiting surface for the rotating lug is provided at the opening of the rotating groove; the specific design depends on the length or shape of the first connecting rod 41 and the second connecting rod 42, and is not limited here.

[0100] Understandably, when the earphone charging case 100 is in the first state, the angle formed by the first link 41 and the second link 42 is greater than 0° and less than 150°. Optionally, the angle formed by the first link 41 and the second link 42 is greater than 60° and less than 120°. In this embodiment, in the first state, the sum of the lengths of the first link 41 and the second link 42 is greater than the distance from the rotating platform 34 to the rotating part 24.

[0101] In this embodiment, the depth direction of the limiting groove 141 is defined as the Z-axis direction, and the extension non-functionality of the guide groove 145 is defined as the X-axis direction. When the earphone charging case 100 is in the first state, as... Figure 3 and Figure 5 As shown, at this time, the upper shell 3 completely covers the lower shell 1, and the earbud 2 is housed in the limiting groove 141 of the inner shell 14. When the earphone charging case 100 is in the second state, that is, when the upper shell 3 is open relative to the lower shell 1, one end of the upper shell 3 near the movable opening 12 moves through the movable opening 12 toward the receiving cavity 11. At this time, the upper shell 3 drives the connecting rod assembly 4 to push the earbud 2, so that the earbud 2 moves along the Z-axis direction and gradually moves to the opening of the limiting groove 141. At this time, the limiting boss 231 abuts against the side of the main body 22 of the earbud 2 facing away from the placement groove 21, thus limiting the earbud 2 from continuing to move along the Z-axis direction. Figure 6 As shown; when the upper shell 3 continues to open, causing the upper shell 3 to continue to drive the connecting rod assembly 4 to push the earbud 2, the earbud 2 is limited by the limiting boss 231. At this time, the earbud 2 moves along the X-axis and drives the limiting part 23 to slide along the guide groove 145, thereby pushing the earbud 2 to the position where the opening between the upper shell 3 and the lower shell 1 is at its maximum, thus facilitating the user to take out and put in the earphone unit 500, as shown. Figure 2 , Figure 4 and Figure 7 As shown.

[0102] When the upper shell 3 is closed relative to the lower shell 1, one end of the upper shell 3 near the movable opening 12 protrudes through the movable opening 12. At this time, the upper shell 3 drives the connecting rod assembly 4 to pull the ear clip 2. The ear clip 2 is limited by the limiting boss 231. At this time, the ear clip 2 moves in the opposite direction along the X-axis and drives the limiting part 23 to slide along the guide groove 145, so that the ear clip 2 is aligned with the opening of the limiting groove 141. The upper shell 3 continues to close, so that the upper shell 3 continues to drive the connecting rod assembly 4 to pull the ear clip 2. The ear clip 2 moves in the opposite direction along the Z-axis and gradually moves into the limiting groove 141, thereby realizing the reset of the ear clip 2.

[0103] This invention also proposes a wireless earphone 600, which includes the aforementioned earphone charging case 100 and earphone units 500, with the earphone units 500 placed within the placement slot 21 of the earphone charging case 100. The specific structure of the earphone charging case 100 is as described in the foregoing embodiments. Since this wireless earphone 600 adopts all the technical solutions of all the foregoing embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be elaborated upon here. In this embodiment, the wireless earphone 600 can be selected as a TWS earphone.

[0104] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An earphone charging case, characterized in that, The earphone charging box comprises: a lower shell comprising an outer shell and an inner shell body, the outer shell is arranged in a hemispherical shape, and a receiving groove is formed in the outer shell; the inner shell is arranged in the receiving groove and adjacent to the groove opening of the receiving groove, the inner shell and the receiving groove form a receiving cavity and a movable opening, the side of the inner shell away from the receiving cavity is provided with two spaced limiting grooves, and the bottom wall of each limiting groove is provided with a guide groove communicating with the receiving cavity; the outer shell is provided with a support table adjacent to the groove opening of the receiving groove, the support table is located on the side of the outer shell facing the movable opening, and the inner shell is supported and fixed on the support table; two ear pulls, each of which is movably arranged in the limiting groove, each of the ear pulls comprises a main body portion, a limiting portion and a rotating portion, the main body portion is provided with a placing groove for placing an earphone unit, the main body portion is movably arranged in the limiting groove, the limiting portion is arranged on the side of the main body portion away from the placing groove, the end of the limiting portion away from the main body portion movably passes through the guide groove and is provided with a limiting boss, and the rotating portion is arranged on the side of the main body portion facing the movable opening; an upper shell, which is rotatably connected with the lower shell, and is further provided with a rotating table adjacent to the movable opening; and two groups of connecting rod assemblies, each of which comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected with the rotating portion, the other end of the first connecting rod is rotatably connected with one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected with the rotating table; wherein the extension direction of the guide groove is perpendicular to the axial direction of the rotation of the upper shell, and the earphone charging box has a first state in which the upper shell covers the limiting groove and a second state in which the upper shell opens the limiting groove; in the first state, the ear pull is contained in the limiting groove, the first connecting rod and the second connecting rod are arranged at an angle, and the angle formed by the first connecting rod and the second connecting rod is greater than 0° and less than 150°; in the second state, part of the upper shell passes through the movable opening and extends into the receiving cavity, and drives the connecting rod assembly to push the ear pull to protrude from the groove opening of the limiting groove, the limiting boss and the side of the main body portion away from the placing groove slide and limit abutment, and the limiting portion can slide along the guide groove to push the earphone unit in the ear pull to the opening of the upper shell opening the lower shell.

2. The earphone charging case of claim 1, wherein, The inner shell extends towards the movable opening to form a support arm, the support arm is provided with a positioning member, the upper shell is provided with a sliding groove corresponding to the positioning member, and the end of the positioning member away from the inner shell is slidably limited in the sliding groove; wherein the extension direction of the sliding groove is consistent with the rotation direction of the upper shell.

3. The earphone charging case of claim 2, wherein, The sliding groove has opposite first and second ends, and the first end is located on the side of the upper shell away from the movable opening; in the first state, the first end is located on the side of the inner shell away from the movable opening, and the positioning member is located at the second end; in the second state, the positioning member is located at the first end, and the second end is located at the movable opening.

4. The earphone charging case of claim 1, wherein, The abutment table is located between the outer shell and the inner shell and on the side of the inner shell away from the movable port. The side of the upper shell away from the movable port is provided with an abutment boss. At least one of the abutment table and the abutment boss is provided with a magnetic attraction element. In the first state, the abutment boss is connected to the abutment table by the magnetic attraction element. Furthermore, the outer shell is provided with a blocking rib. The blocking rib is located in the accommodation cavity. In the second state, one end of the upper shell passing through the movable port is limited by the blocking rib.

5. The earphone charging case according to claim 1, characterized in that, The lower shell is provided with a protruding strip adjacent to the slot of the limiting groove. The protruding strip is located on the side of the limiting groove away from the movable port. The extending direction of the protruding strip is parallel to the axial direction of the rotation of the upper shell. Furthermore, the side of the main body away from the placing groove is also provided with a sliding boss. The extending direction of the sliding boss is perpendicular to the axial direction of the rotation of the upper shell.

6. A wireless earpiece, characterized in that The wireless earphone comprises: The earphone charging box according to any one of claims 1 to 5; and The earphone body is placed in the placing groove of the earphone charging box.

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