Earphone charging device

Abstract

An embodiment of the utility model discloses an earphone charging device which comprises a box body, a box cover and a transmission assembly, the box cover is rotatably connected with the box body, the transmission assembly is arranged in an installation cavity, one end of a first transmission part is connected with the box cover, and the other end of the first transmission part is connected with the box cover. The transmission shaft at the other end of the first transmission part is slidably connected in the guide groove at one end of the second transmission part, and the other end of the second transmission part abuts against the earphone. When the box cover is rotatably opened and closed relative to the box body, the first transmission part and the second transmission part are driven to integrally move up and down and transversely move between the first transmission part and the second transmission part, so that the earphone can be lifted, the transmission assembly is prevented from being stuck when the earphone is lifted, the lifting smoothness of the earphone is ensured, and the user experience comfort is improved.

Description

Technical Field

[0001] This utility model relates to the field of wireless earphone storage and charging technology, specifically to an earphone charging device. Background Technology

[0002] Since wireless earbuds need to be charged to maintain their function after a period of use, corresponding earbud charging devices are provided, which not only store the earbuds but also charge them. In recent years, as earbud charging devices have become increasingly miniaturized, the internal space for storing the earbuds often uses an irregularly shaped, smooth curved surface design. This design, due to its small contact area and low friction, can make it difficult for users to remove the earbuds. As a result, a new type of earbud charging device has emerged that can automatically adjust the height of the earbuds during opening and closing.

[0003] The new headphone charging device theoretically solves the problem of inconvenience in taking out the headphones. However, in practical applications, the rotational force generated during the opening and closing process can cause the headphones to jam or even become stuck during the raising and lowering process. This affects the smooth opening and closing of the headphone charging device and the normal use of the headphones, causing inconvenience to users. Utility Model Content

[0004] In view of this, the present invention provides an earphone charging device that can realize the raising and lowering of the earphone and prevent the transmission component from jamming during the raising and lowering of the earphone, ensuring the smooth raising and lowering of the earphone and improving the user experience comfort.

[0005] This utility model embodiment provides an earphone charging device, the earphone charging device comprising:

[0006] The box body includes a connected mounting cavity and an earphone placement cavity;

[0007] The lid is rotatably connected to the box body;

[0008] A transmission assembly is disposed within the mounting cavity. The transmission assembly includes a first transmission part and a second transmission part. One end of the first transmission part is hinged to the cover, and the other end of the first transmission part is provided with a transmission shaft. One end of the second transmission part is provided with a guide groove, and the transmission shaft is connected in the guide groove. The other end of the second transmission part abuts against the earphone.

[0009] When the box cover rotates open and closes relative to the box body, the first transmission part and the second transmission part move up and down as a whole within the mounting cavity, and the first transmission part and the second transmission part move laterally relative to each other through the cooperation of the transmission shaft and the guide groove.

[0010] Optionally, the second transmission unit includes:

[0011] A support rod, the extension direction of which is parallel to the drive shaft;

[0012] The upper connecting part is fixed on the support rod, and the guide groove is provided on the upper connecting part;

[0013] The lower connecting part has one end connected to the support rod and the other end extending to abut against the earphone.

[0014] Optionally, the upper connecting part includes a C-shaped connecting piece, and the guide grooves are respectively provided on the two opposite sides of the C-shaped connecting piece;

[0015] The lower connecting part includes a first rod and a second rod connected to form an L-shape. The first rod is fixedly connected to the support rod, and the second rod abuts against the earphone.

[0016] Optionally, the C-shaped connecting piece has horizontally extending guide grooves on its opposite sides. The first transmission part is an arc-shaped connecting rod, one end of which is rotatably connected to the rotating part. The transmission shaft is connected through the other end of the arc-shaped connecting rod, and the other end of the arc-shaped connecting rod extends into the opening of the C-shaped connecting piece. Both ends of the transmission shaft are respectively connected to the two guide grooves.

[0017] Optionally, the upper connecting part further includes a vertical connecting piece, which is connected between the C-shaped connecting piece and the support rod.

[0018] Optionally, the C-shaped connecting piece has arc-shaped guide grooves on its opposite sides, and the guide grooves extend outward toward the outer side of the box body;

[0019] The upper connecting part also includes a vertical connecting piece, one end of which is connected to the C-shaped connecting piece, and the other end of which extends to the bottom of the support rod.

[0020] Optionally, the earphone charging device further includes a connecting plate disposed within the mounting cavity. The connecting plate is connected to the housing body to form a longitudinally penetrating movable hole, and the vertical connecting piece is longitudinally movably connected within the movable hole.

[0021] Optionally, the box body is provided with a limiting plate extending into the mounting cavity. The limiting plate includes a main body and two limiting parts. The two limiting parts are respectively disposed at both ends of the main body, and a first slot is formed between the two limiting parts and the main body.

[0022] The connecting plate includes a curved portion and two flat portions. The two flat portions are respectively connected to the two ends of the curved portion and extend in opposite directions. The two flat portions are respectively engaged in the two first slots. The main body and the curved portion surround to form the moving hole.

[0023] Optionally, the inner wall of the box body is provided with a second slot, and the upper connecting part further includes a snap-fit ​​part, which is connected to the side of the C-shaped connecting piece facing the second slot, and the snap-fit ​​part is slidably connected in the second slot.

[0024] Optionally, the first transmission unit includes:

[0025] A fixing block is slidably connected to the inner wall of the box body. The fixing block includes a moving groove and a clearance groove, and the clearance groove is longitudinally connected to the moving groove.

[0026] The sliding block includes a mounting plate, a movable plate, and an extension plate connected sequentially from top to bottom. One end of the mounting plate is connected to the rotating part, and the other end of the mounting plate is movably connected in the movable groove. The movable plate is installed in the clearance groove. The extension plate is located below the fixed block, and transmission shafts that cooperate with the guide groove are provided on both sides of the extension plate.

[0027] A damping element is connected between the mounting plate and the inner wall of the moving groove.

[0028] Optionally, the earphone charging device further includes an elastic element disposed within the mounting cavity, one end of the elastic element being connected to the rotating part, and the other end of the elastic element being connected to the side wall of the housing body.

[0029] Optionally, the earphone charging device further includes a rotating part fixed on the cover. The rotating part is provided with a first shaft hole, a second shaft hole and a spring positioning hole, with the second shaft hole located between the first shaft hole and the spring positioning hole.

[0030] The mounting cavity has a third shaft hole at its opening, and the first rotating shaft is inserted into the third shaft hole and the first shaft hole. The rotating part can rotate within the mounting cavity based on the first rotating shaft.

[0031] One end of the first transmission part is provided with a fourth shaft hole, and the second rotating shaft is inserted into the fourth shaft hole and the second shaft hole;

[0032] The mounting cavity is provided with a spring movement space and a spring connecting part. The elastic element is movably accommodated within the spring movement space. One end of the elastic element is connected to the spring positioning hole, and the other end of the elastic element is connected to the spring connecting part.

[0033] Optionally, the earphone charging device further includes a rotating part fixed on the case cover, the rotating part having a first shaft hole, a second shaft hole and a plurality of grooves radially communicating with the second shaft hole;

[0034] The mounting cavity has a third shaft hole at its opening, and the first rotating shaft is inserted into the third shaft hole and the first shaft hole. The rotating part can rotate within the mounting cavity based on the first rotating shaft.

[0035] One end of the first transmission part is provided with a fourth shaft hole, and the second rotating shaft is inserted into the fourth shaft hole and the second shaft hole;

[0036] The mounting cavity is provided with a spring movement space and a spring connection part. The elastic element is movably accommodated within the spring movement space. One end of the elastic element extends into the groove and is connected to the second rotating shaft, and the other end of the elastic element is connected to the spring connection part.

[0037] Optionally, the first transmission part is an arc-shaped connecting rod, and the guide groove is a horizontal sliding groove with the length direction of the guide groove perpendicular to the transmission shaft.

[0038] Optionally, the guide groove is an arc-shaped slide groove, which extends and curves toward the outside of the box body.

[0039] Optionally, the earphone placement cavity includes two earphone housings arranged side by side, and the bottom of both earphone housings has a hollow structure;

[0040] The headphone charging device also includes a headphone top mount with two headphone trays. The two headphone trays are slidably connected to the bottom inner walls of the two headphone housings, and both headphone trays are fixedly connected to the second transmission part. The transmission component moves up and down, causing the two headphone trays to move up and down in the two headphone housings.

[0041] Optionally, the headphone charging device further includes:

[0042] A conductive pin is fixed inside the earphone holder, and the conductive pin is used to make an electrical connection with the earphone.

[0043] The power supply and circuit board are fixed inside the mounting cavity and electrically connected to each other. The circuit board extends and is fixedly connected to the underside of the earphone holder, and the circuit board is electrically connected to the conductive pin.

[0044] The headphone charging device of this embodiment includes a case body, a case lid, and a transmission assembly. The case lid is rotatably connected to the case body. The transmission assembly is disposed within a mounting cavity. One end of a first transmission part is connected to the case lid, and the transmission shaft at the other end of the first transmission part is slidably connected to a guide groove at one end of a second transmission part. The other end of the second transmission part abuts against the headphone. When the case lid rotates open and closes relative to the case body, it drives the first and second transmission parts to move up and down as a whole, as well as to move laterally between the first and second transmission parts. This allows for headphone lifting and lowering while preventing the transmission assembly from jamming during headphone lifting and lowering, ensuring smooth headphone lifting and lowering and improving user comfort. Attached Figure Description

[0045] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0046] Figure 1 This is a schematic diagram of the headphone charging device in the closed state according to the first embodiment of this utility model;

[0047] Figure 2 This is a schematic diagram of the headphone charging device in the open state according to the first embodiment of this utility model;

[0048] Figure 3 This is a schematic diagram of the open-cover structure of the headphone charging device according to the first embodiment of this utility model.

[0049] Figure 4 This is a schematic diagram of the interconnection of the elastic element, transmission assembly, rotating part, and earphone top mount according to the first embodiment of this utility model;

[0050] Figure 5 This is a schematic diagram showing the distributed structure of the elastic element, transmission assembly, rotating part, and headphone top mount according to the first embodiment of this utility model.

[0051] Figure 6 This is a schematic diagram of the structure of the elastic element and connecting plate of the first embodiment of the present invention installed in the mounting cavity;

[0052] Figure 7 This is a schematic diagram of the dispersed structure of the box body according to the first embodiment of this utility model;

[0053] Figure 8 This is a first cross-sectional view of the headphone charging device of the first embodiment of the present invention in the open state;

[0054] Figure 9 This is a first cross-sectional view of the headphone charging device of the first embodiment of the present invention in the closed state;

[0055] Figure 10 This is a second sectional view of the headphone charging device of the first embodiment of the present invention in the closed state;

[0056] Figure 11 This is a second sectional view of the headphone charging device of the first embodiment of the present invention in the open state;

[0057] Figure 12 This is a schematic diagram of the interconnection of the elastic element, transmission assembly, rotating part, and earphone top mount according to the second embodiment of this utility model;

[0058] Figure 13 This is a schematic diagram of the rotating part according to the second embodiment of the present invention;

[0059] Figure 14 This is a schematic diagram showing the distributed structure of the elastic element, transmission assembly, and headphone top mount according to the second embodiment of this utility model.

[0060] Figure 15 This is a first cross-sectional view of the headphone charging device of the second embodiment of the present invention in the closed state;

[0061] Figure 16 This is a first cross-sectional view of the headphone charging device in the open state according to the second embodiment of this utility model;

[0062] Figure 17 This is a structural diagram of the lower outer shell of the second embodiment of this utility model;

[0063] Figure 18 This is a schematic diagram of the interconnection between the transmission assembly, the rotating part, and the headphone top mount according to the third embodiment of this utility model;

[0064] Figure 19 This is a schematic diagram showing the distributed structure of the transmission assembly, rotating part, and headphone top mount according to the third embodiment of this utility model.

[0065] Figure 20 This is a structural schematic diagram of the fixing block according to the third embodiment of this utility model.

[0066] Figure label:

[0067] 1-Box body; 11-Mounting cavity; 111-Third shaft hole; 112-First rotating shaft; 113-Spring movement space; 114-Spring connecting part; 12-Earphone placement cavity; 121-Earphone receiving compartment; 13-Second slot; 14-Limiting plate; 141-Main body; 142-Limiting part; 143-First slot; 15-Lower outer shell; 16-Lower inner liner shell; 2-Earphone top mount; 21-Earphone holder; 3-Box cover; 4-Rotating part; 41-First shaft hole; 42-Second shaft hole; 43-Spring positioning hole; 44-Groove; 5-Transmission assembly; 51-First transmission part; 511-Fourth shaft hole; 512-Second rotating shaft; 515-Fixing block; 51 51-Moving groove; 5152-Avoidance groove; 516-Sliding block; 5161-Mounting plate; 5162-Moving plate; 5163-Extension plate; 517-Damping element; 52-Drive shaft; 53-Second transmission part; 531-Support rod; 532-Upper connecting part; 5321-C-shaped connecting piece; 5322-Vertical connecting piece; 5323-Snap-fit ​​part; 533-Lower connecting part; 5331-First rod; 5332-Second rod; 54-Guide groove; 6-Connecting plate; 61-Moving hole; 62-Bending part; 63-Flat part; 7-Elastic element; 71-Spring body; 72-Elastic drive arm; 73-Elastic support arm; 8-Conductive pin; 9-Circuit board. Detailed Implementation

[0068] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0069] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0070] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0071] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0072] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0073] This application provides an earphone charging device for storing and charging earphones. When the earphone charging device is in the open state, the earphones can extend out from the charging device, reducing the difficulty for users to retrieve them. When the earphone charging device is switched from the open state to the closed state, the earphones fall back into the earphone placement cavity 12 for storage. Furthermore, this earphone charging device, while enabling earphone lifting and lowering, also prevents the transmission component from jamming, ensuring smooth earphone lifting and lowering and improving user comfort. In this application, the earphones are wireless earphones, and the earphone charging device can charge the earphones inside.

[0074] First embodiment:

[0075] Reference Figures 1-3 The earphone charging device includes a charging case body 1, an earphone top mount 2, a case cover 3, and a transmission assembly 5. (See reference...) Figure 2 and Figure 3 The charging case 1 includes a connected mounting cavity 11 and an earphone placement cavity 12. The earphone placement cavity 12 communicates with the external environment and is used to store earphones. The lid 3 rotates relative to the charging case 1 to either close or expose the opening of the earphone placement cavity 12, allowing the earphone charging device to be in a closed or open state. One end of the earphone ejector 2 extends into the earphone placement cavity 12, and the other end extends into the mounting cavity 11. The earphone ejector 2 abuts against the bottom of the earphone and can slide longitudinally within the earphone placement cavity 12 to raise or lower the earphone. A transmission assembly 5 is disposed within the mounting cavity 11. One end of the transmission assembly 5 is connected to the lid 3, and the other end is fixedly connected to the earphone ejector 2. When the lid 3 rotates open and closes relative to the charging case 1, the lid 3 drives the transmission assembly 5 to move, causing the earphone ejector 2 to slide up and down within the earphone placement cavity 12, thereby raising or lowering the earphone for easy access by the user.

[0076] In one embodiment, reference is made to... Figure 3 , Figure 6 and Figure 7The box body 1 includes a lower outer shell 15 and a lower inner liner shell 16. The lower outer shell 15 is provided with a first receiving groove. The lower inner liner shell 16 is inserted into the top of the first receiving groove and is fixedly connected to the lower outer shell 15. The lower inner liner shell 16 and the first receiving groove form a mounting cavity 11. (Refer to...) Figure 6 After the lower inner liner 16 is connected to the lower outer shell 15, the mounting cavity 11 is provided with an opening near the top of the lower outer shell 15 so that the rotating part 4 can rotate at this position.

[0077] Reference Figure 3 , Figure 6 and Figure 7 The lower inner shell 16 has an earphone placement cavity 12, the bottom of which has a hollow structure and communicates with the mounting cavity 11 through the bottom hollow structure. The split design of the box body 1 is simple and reliable, making it easy to assemble components such as the earphone top seat 2 and the transmission assembly 5 into the mounting cavity 11, improving the aesthetics of the earphone charging device while realizing the raising and lowering of the earphone. Furthermore, the split design of the box body 1 improves the processing efficiency of the mounting cavity 11, reduces the production difficulty and cost of the box body 1, and simplifies the structure of the earphone charging device.

[0078] The shape of the earphone placement cavity 12 is basically adapted to the shape of the earphone, so that the earphone will not shake after being placed in the earphone placement cavity 12, preventing damage to the earphone during carrying and transportation. In this embodiment, the earphone placement cavity 12 is set as a columnar structure near the bottom.

[0079] Reference Figures 1-3 The lid 3 is rotatably connected to the body 1 via a rotating part 4, facilitating the opening and closing of the headphone charging device. One end of the transmission component 5 is rotatably connected to the rotating part 4, and the other end is connected to the headphone ejector 2. When the lid 3 and the body 1 open and close relative to each other, the rotating part 4 drives the transmission component 5 to move, thereby causing the headphone ejector 2 to rise and fall within the headphone placement cavity 12.

[0080] Reference Figure 4 and Figure 5 The transmission assembly 5 includes a first transmission part 51 and a second transmission part 53. One end of the first transmission part 51 (i.e., the end near the top) is rotatably connected to the rotating part 4, and the other end of the first transmission part 51 (i.e., the end near the bottom) is movably connected to one end of the second transmission part 53. The other end of the second transmission part 53 is fixedly connected to the headphone ejector seat 2. Thus, when the cover 3 is rotated open and closed, the rotating part 4 can drive the first transmission part 51 and the second transmission part 53 to move, ultimately causing the headphone ejector seat 2 to move up and down in the headphone placement cavity 12, thereby pushing the headphone up and down.

[0081] Reference Figure 4 and Figure 5The other end of the first transmission part 51 is fixed with a transmission shaft 52, and one end of the second transmission part 53 is provided with a guide groove 54. The first transmission part 51 is connected to the guide groove 54 through the transmission shaft 52 to achieve a movable connection with the second transmission part 53. When the cover 3 flips over, the rotating part 4 drives the first transmission part 51 and the second transmission part 53 to move up and down. The transmission shaft 52 of the first transmission part 51 can slide in the guide groove 54 to achieve movement between it and the second transmission part 53. This can prevent the headphone charging device from jamming during opening and closing, which would affect the storage and charging of the headphones. The transmission shaft 52 is parallel to the first rotating shaft 112 and the second rotating shaft 512 around which the cover 3 flips.

[0082] In this embodiment, the first transmission unit 51 and the second transmission unit 53 move laterally relative to each other during their up-and-down movement through the cooperation of the transmission shaft 52 and the guide groove 54. This not only prevents the transmission assembly 5 from jamming during opening and closing, but also prevents the earphone top outlet 2 from being affected by lateral thrust, thus avoiding any impact on its lifting and lowering. Furthermore, the cooperation between the transmission shaft 52 and the guide groove 54 also prevents the entire transmission assembly 5 from being subjected to lateral thrust that could interfere with the charging case body, thereby reducing the size and weight of the earphone charging device.

[0083] During the opening process: When the lid 3 is opened, the rotating part 4 drives the first transmission part 51 to rotate outward. The first transmission part 51 drives the second transmission part 53 and the earphone top mount 2 to move upward. When the lid 3 rotates to a predetermined angle, the earphone rises a predetermined distance, at which point the user can easily take out the earphone. The predetermined angle at which the lid 3 can be rotated open and the predetermined distance at which the earphone can rise can be set according to specific needs.

[0084] During the closing process: When the lid 3 is closed, the rotating part 4 drives the first transmission part 51 to rotate inward. At this time, the first transmission part 51 pushes the second transmission part 53 and the headphone top seat 2 to move downward. When the lid 3 rotates to be fully engaged with the body 1 (that is, the angle between the two is 0), the headphones descend to the original position.

[0085] In this embodiment, refer to Figure 4 and Figure 5 The guide groove 54 is a horizontal slide groove, and the length direction of the guide groove 54 is perpendicular to the drive shaft 52, that is, perpendicular to the first axis around which the cover 3 flips. The drive shaft 52 can slide within the guide groove 54 under force.

[0086] Reference Figure 16During the opening process, the lid 3 provides axial rotational force, which is decomposed into upward force and outward force. The upward force drives the first transmission part 51 to move upward, and the transmission shaft 52 slides inward to the leftmost side under the action of the outward force. The first transmission part 51 drives the second transmission part 53 to move upward in the mounting cavity 11, and the earphone ejector 2 moves upward in the earphone placement cavity 12, so that the earphone rises and extends out from the top opening of the earphone placement cavity 12, making it easy for the user to take it out.

[0087] Reference Figure 15 During the closing process, the lid 3 provides axial rotational force, which is decomposed into downward pressure and centripetal force. The downward pressure drives the first transmission part 51 to move downward, and the transmission shaft 52 slides outward to the right under the action of the centripetal force. The first transmission part 51 drives the second transmission part 53 to move downward in the mounting cavity 11, and the earphone ejector 2 moves downward in the earphone placement cavity 12, thereby lowering the earphones for easy sealing and storage. The distance that the transmission shaft 52 slides outward under the action of the centripetal force can be determined by the structure of the first transmission part 51.

[0088] In this embodiment, refer to Figure 4 and Figure 5 The first transmission part 51 is an arc-shaped connecting rod. One end of the arc-shaped connecting rod is equipped with a second rotating shaft 512, which rotatably connects to the rotating part 4. A transmission shaft 52 passes through and connects to the other end of the arc-shaped connecting rod. The other end of the arc-shaped connecting rod is inserted into a guide groove 54 via the transmission shaft 52, thus connecting to the second transmission part 53. The curvature of the arc-shaped connecting rod can be set according to requirements, such as... Figure 5 and Figure 14 As shown. The arc-shaped connecting rod can drive the second transmission part 53 to move up and down, and at the same time, the arc-shaped connecting rod and the second transmission part 53 can also move laterally, so as to avoid jamming during the movement.

[0089] Reference Figure 4 and Figure 5 The second transmission unit 53 includes a support rod 531, an upper connecting part 532, and a lower connecting part 533. The support rod 531 extends parallel to the transmission shaft 52. The upper connecting part 532 is positioned above the support rod 531, and a guide groove 54 is provided on the upper connecting part 532. One end of the lower connecting part 533 is connected to the support rod 531, and the other end extends and is fixedly connected to the earphone top mount 2. An arc-shaped connecting rod is inserted into the guide groove 54 via the transmission shaft 52 to connect with the upper connecting part 532.

[0090] In this embodiment, refer to Figure 4 and Figure 5The upper connecting part 532 includes a C-shaped connecting piece 5321, with horizontally extending guide grooves 54 on opposite sides of the C-shaped connecting piece 5321. The other end of the arc-shaped connecting rod extends into the opening of the C-shaped connecting piece 5321, and both ends of the drive shaft 52 are respectively connected to the two guide grooves 54. (Refer to...) Figure 4 and Figure 18 The opening orientation of the C-shaped connecting piece 5321 is not limited and can be set according to actual needs.

[0091] Reference Figure 5 The lower connecting portion 533 includes a first rod 5331 and a second rod 5332 connected to form an L-shape. The first rod 5331 is connected to the support rod 531, and the second rod 5332 is connected to the earphone top outlet 2. In this embodiment, the second rod 5332 extends to the bottom of the earphone top outlet 2 for connection. The lower connecting portion 533 can be integrally formed with the support rod 531, integrally formed with the earphone top outlet 2, or all three integrally formed.

[0092] Reference Figure 4 The headphone charging device also includes a connecting plate 6, which is disposed within the mounting cavity 11. The connecting plate 6 is connected to the housing body 1 to form a longitudinally penetrating movable hole 61. The second transmission part 53 is longitudinally movably connected to the movable hole 61, and both ends of the second transmission part 53 extend from the movable hole 61. The connecting plate 6 restricts the horizontal movement of the second transmission part 53, ensuring that the second transmission part 53 can only move in the direction of gravity (vertical direction) without deflection, and that the parts remain stable and do not produce abnormal noise after the headphone charging device is dropped.

[0093] In this embodiment, refer to Figure 4 and Figure 5 The upper connecting part 532 also includes a vertical connecting piece 5322. The two ends of the vertical connecting piece 5322 are connected to the C-shaped connecting piece 5321 and the support rod 531 respectively, meaning the vertical connecting piece 5322 is connected between the C-shaped connecting piece 5321 and the support rod 531. The vertical connecting piece 5322 is longitudinally movably connected within the moving hole 61, while the C-shaped connecting piece 5321 and the support rod 531 are located outside the moving hole 61, thereby restricting the second transmission part 53. The length of the vertical connecting piece 5322 needs to be determined according to the range of vertical movement of the transmission assembly to ensure the opening and closing of the headphone charging device.

[0094] The size of the movable hole 61 is adapted to the cross-sectional area of ​​the vertical connecting piece 5322. The vertical connecting piece 5322 is longitudinally movably connected within the movable hole 61, thereby restricting the horizontal movement of the second transmission unit 53.

[0095] Optionally, the C-shaped connecting piece 5321 can be directly connected to the support rod 531, and the vertical connecting piece 5322 can also be connected below the C-shaped connecting piece 5321, with the bottom end of the vertical connecting piece 5322 extending downwards to below the support rod 531, as shown in the figure. Figure 18 .

[0096] In this embodiment, the box body 1 is provided with a limiting plate 14 extending upward from the bottom into the mounting cavity 11, as shown in the figure. Figure 7 The connecting plate 6 and the limiting plate 14 are connected to form a vertically penetrating movable hole 61. The connecting plate 6 and the limiting plate 14 can be fixedly connected by bolts or other means. In one implementation, the limiting plate 14 includes a main body 141 and two limiting parts 142, which are respectively disposed at both ends of the main body 141, and a first slot 143 is formed between the two limiting parts 142 and the main body 141. The gap between the two limiting parts 142 forms an opening towards the transmission assembly 5. The connecting plate 6 includes a bent portion 62 and two flat portions 63, which are respectively connected to both ends of the bent portion 62 and extend in opposite directions, as shown in the figure. Figure 5 Two flat portions 63 are respectively engaged in two first slots 143, and the main body portion 141 and the curved portion 62 surround to form a movable hole 61. Preferably, the curved portion 62 is U-shaped, and after being fixedly connected to the lower outer shell, it can form a rectangular movable hole 61, which facilitates the restriction of the vertical connecting piece 5322.

[0097] Specifically, the limiting plate 14 extends upward from the inner bottom surface of the lower outer shell 15, and the position of the limiting plate 14 inside the lower outer shell 15 will not interfere with the lower inner liner shell 16.

[0098] In other possible implementations, the connecting plate 6 can also be directly connected to the inner side of the lower outer shell 15 or the outer side of the lower inner liner shell 16 to form a movable hole 61.

[0099] In other alternative implementations, the C-shaped connecting piece 5321 can be directly connected to the support rod 531. The upper connecting part 532 no longer has a vertical connecting piece 5322; instead, a snap-fit ​​part 5323 is provided on one side of the C-shaped connecting piece 5321. (Refer to...) Figure 14 Correspondingly, a second slot 13 is provided on the inner wall of the box body 1. Specifically, the second slot 13 can be provided on the inner side of the lower outer shell 15, as shown in the figure. Figure 17 The snap-fit ​​part 5323 and the second slot 13 are arranged opposite to each other. The C-shaped connecting piece 5321 is slidably connected to the second slot 13 through the snap-fit ​​part 5323, thereby achieving lateral positioning with the box body 1, so that the second transmission part 53 can only move up and down within the mounting cavity.

[0100] In this embodiment, one end of the earphone ejector 2 is longitudinally slidably connected to the earphone placement cavity 12, and the other end extends into the mounting cavity 11 and connects to the end of the transmission assembly 5 (i.e., the lower connecting part 533). The earphone placement cavity 12 and the earphone ejector 2 are used to place the earphones, and the earphone ejector 2 can abut against the bottom of the earphones. When the earphone ejector 2 slides up and down within the earphone placement cavity 12, the earphone ejector 2 can move up and down with the earphones to achieve lifting and lowering.

[0101] In one embodiment, reference is made to... Figure 10 and Figure 11 The outer wall of the earphone ejector 2 matches the shape and size of the inner wall of the earphone placement cavity 12, allowing the earphone ejector 2 to slide up and down within the earphone placement cavity 12. Preferably, the size of the portion near the bottom of the earphone placement cavity 12 is larger than the size of the top portion, forming a stepped shape, such as a countersunk hole structure. Matching the size of the earphone ejector 2 with the size of the portion near the bottom of the earphone placement cavity 12 allows for control of the rising height of the earphone ejector 2, ensuring that the movement of the earphone ejector 2 along the length direction of the earphone placement cavity 12 smoothly ejects the earphone from the earphone placement cavity 12. This also prevents the earphone ejector 2 from falling out, ensuring the smooth operation of the earphone charging device.

[0102] In one implementation, refer to Figures 2-3 The earphone placement cavity 12 includes two earphone accommodating compartments 121 arranged side by side, which can hold both left and right earphones simultaneously. The two earphone accommodating compartments 121 can be completely independent and not connected, or they can be partially connected at the top, which is not limited. The bottom of both earphone accommodating compartments 121 has a hollow structure.

[0103] Accordingly, the headphone top mount 2 includes two headphone trays 21, which are slidably connected to the bottom inner walls of the two headphone housings 121. In this embodiment, the shape of the headphone trays 21 is not limited; they can be cylindrical or trays, as long as they can abut against the headphones.

[0104] Correspondingly, the number and position of the lower connecting parts 533 are related to the number of the headphone top outlet 2 and the headphone placement cavity 12. Therefore, when the headphone top outlet includes two headphone trays 21, the second transmission part 53 includes two lower connecting parts 533. Preferably, the upper connecting part 532 is connected to the middle position of the support rod 531, and the two lower connecting parts 533 are respectively connected to both ends of the support rod 531, and the two lower connecting parts 533 are respectively connected to the two headphone trays 21. That is, the headphone trays 21 are fixed on the second rod 5332. The headphone trays 21 can be fixedly connected to the second rod 5332 by bolts, clips, etc. In addition, the headphone trays 21 can also be integrally formed with the lower connecting parts 533.

[0105] Reference Figures 3-5 The headphone charging device also includes an elastic element 7, which is disposed within the mounting cavity 11. One end of the elastic element 7 is connected to the rotating part 4, and the other end of the elastic element 7 is connected to the side wall of the case body 1. When the headphone charging device is closed, the case lid 3 can be securely closed onto the case body 1 under the tension of the elastic element 7. When the headphone charging device is open, the case lid 3 can maintain the maximum opening angle under the tension of the elastic element 7.

[0106] Reference Figures 3-5 The rotating part 4 is provided with a first shaft hole 41, a second shaft hole 42, and a spring positioning hole 43. The second shaft hole 42 is located between the first shaft hole 41 and the spring positioning hole 43. A third shaft hole 111 is provided at the opening of the mounting cavity 11. The first rotating shaft 112 is inserted into the third shaft hole 111 and the first shaft hole 41. The rotating part 4 can rotate within the mounting cavity 11 based on the first rotating shaft 112, thereby realizing the rotational opening and closing of the lid 3 and the body 1. Among them, two third shaft holes 111 are symmetrically provided. One third shaft hole 111 is installed on one side of the opening of the mounting cavity 11, and the other third shaft hole 111 is installed on the other side of the opening of the mounting cavity 11.

[0107] Reference Figure 4 and Figure 5 The first transmission part 51 has a fourth shaft hole 511 at one end, and the second rotating shaft 512 is inserted into the fourth shaft hole 511 and the second shaft hole 42. The rotating part 4 can drive the first transmission part 51 to move based on the second rotating shaft 512. Preferably, there are two symmetrical second shaft holes 42. After the first transmission part 51 is inserted between the two second shaft holes 42, the connection is achieved by inserting the second rotating shaft 512.

[0108] Reference Figure 6 and Figure 7 The mounting cavity 11 is provided with a spring movement space 113 and a spring connecting part 114, and the elastic element 7 is movably accommodated within the spring movement space 113. (Refer to...) Figure 8 and Figure 9 One end of the elastic element 7 is connected to the spring positioning hole 43, and the other end of the elastic element 7 is connected to the spring connecting part 114.

[0109] In this embodiment, the elastic element 7 is a spring, including a spring body 71. The spring body 71 is integrally connected to an elastic drive arm 72 and an elastic support arm 73, as shown in the figure. Figure 5 The spring body 71 is movably accommodated within the spring movement space 113, the elastic drive arm 72 is positioned in the spring positioning hole 43 of the rotating part 4, and the elastic support arm 73 is positioned on the spring connecting part 114 of the mounting cavity 11.

[0110] The spring body 71 includes a first spring body and a second spring body that are symmetrical to each other. The elastic drive arm 72 includes a first elastic drive arm and a second elastic drive arm that are symmetrical to each other. The first elastic drive arm is integrally connected to the first spring body, and the second elastic drive arm is integrally connected to the second spring body. The elastic support arm 73 is a "U"-shaped elastic support arm. One end of the elastic support arm 73 is connected to the first spring body, and the other end of the elastic support arm 73 is connected to the second spring body. The middle part of the elastic support arm 73 extends downward and is positioned on the spring connection part 114 of the mounting cavity 11.

[0111] Reference Figure 7 The spring connecting part 114 is disposed in the spring moving space 113. The spring connecting part 114 is a slot structure. The middle part of the elastic support arm 73 is locked in the slot structure. The first spring body and the second spring body are movably accommodated in the spring moving space 113.

[0112] Reference Figure 4 and Figure 5 The rotating part 4 has two symmetrically arranged spring positioning holes 43. The ends of the first elastic drive arm and the second elastic drive arm are bent inwards towards each other to form spring positioning pins. The two spring positioning pins are parallel to the first rotating shaft and are rotatably inserted into the corresponding spring positioning holes 43.

[0113] The elastic element 7 switches positions between the open and closed states. In these two different positions, the tension of the elastic element 7 controls the automatic opening and closing of the headphone charging case lid. Simultaneously, the opening and closing process provides a damped tactile feedback, allowing the user to clearly feel the lid's position in their hand. The headphone charging device can automatically open and close, and when the lid is fully closed or fully open, the elastic element 7 consistently provides a spring-loaded force to the rotating part 4. This ensures excellent stability and tightness of the elastic element 7, preventing it from shaking when the charging case is shaken. The opening and closing process feels very smooth.

[0114] In addition, the structure and connection method of the rotating part 4, the transmission assembly 5, and the elastic element 7 can also adopt the second embodiment, as shown in the following figure. Figure 12 The specific description is also provided in the second embodiment.

[0115] Reference Figure 10 and Figure 11The headphone charging device also includes a conductive pin 8, a power supply, and a circuit board 9. The conductive pin 8 is fixed inside the headphone top mount 2 and is used for electrical connection with the headphone inside the headphone top mount 2. The power supply and circuit board 9 are fixed inside the mounting cavity 11 and are electrically connected to each other. The circuit board 9 extends and is fixedly connected to the lower part of the headphone top mount 2, and the circuit board 9 is electrically connected to the conductive pin 8. Because the conductive pin 8 is fixed inside the headphone top mount 2 and can move up and down with the headphone top mount 2, continuous charging can be ensured when the headphone is raised or lowered.

[0116] The earphone charging device also features a charging port located on the main body 1. The charging port is electrically connected to a power source for charging.

[0117] In one embodiment, the headphone charging device further includes a first magnetic element and a second magnetic element. The first magnetic element is disposed at the end of the cover 3 away from the rotating part 4, and the second magnetic element is disposed at the end of the body 1 away from the rotating part 4. When the cover 3 and the body 1 are fastened together, the first and second magnetic elements attract each other. Specifically, both the first and second magnetic elements are magnets and are magnetically attracted to each other. The arrangement of the first and second magnetic elements provides a locking force when the cover 3 and the body 1 are fastened together to seal the headphone placement cavity 12, reducing the risk of losing the headphone due to accidental opening of the cover 3 and improving the headphone charging device's protection capability for the headphone.

[0118] In one embodiment, the cover 3 includes an upper outer shell and an upper inner shell. The upper outer shell has a second receiving groove, and the upper inner shell is inserted into the top of the second receiving groove. The upper inner shell has a recessed cover groove. When the cover is fastened to the body, the cover groove communicates with the earphone placement cavity 12 to form a receiving space that perfectly matches the shape of the earphone, accommodating the earphone head. This allows for optimization of the earphone arrangement by adjusting the dimensions of the cover groove and the earphone placement cavity 12, thereby further simplifying the layout of the earphone charging device and reducing its size and weight.

[0119] In this embodiment, when the cover of the headphone charging device rotates to open and close relative to the body, the rotating part drives the first transmission part and the second transmission part to move up and down as a whole, and the first transmission part and the second transmission part slide relative to each other in the guide groove through the transmission shaft to achieve relative lateral movement. This can realize the raising and lowering of the headphones and prevent the transmission components from jamming during the raising and lowering of the headphones, ensuring the smoothness of the raising and lowering of the headphones and improving the comfort of the user experience.

[0120] Second embodiment:

[0121] The difference between this embodiment and the first embodiment is that the second transmission part 53 no longer has a vertical connecting piece 5322, and the box body 1 no longer has a corresponding limiting plate 14 to form a mutually cooperating limiting structure. Instead, a second slot 13 is provided on the inner wall of the box body 1. Specifically, the second slot 13 can be provided on the inner side of the lower outer shell 15, as shown in the figure. Figure 17 The upper connecting portion 532 also includes a snap-fit ​​portion 5323, which is connected to the side of the C-shaped connecting piece 5321 facing the second slot 13, as shown in the figure. Figure 14 The snap-fit ​​part 5323 is slidably connected within the second slot 13. The C-shaped connecting piece 5321 is slidably connected within the second slot 13 via the snap-fit ​​part 5323, achieving lateral limitation with the box body 1, so that the second transmission part 53 can only move up and down within the mounting cavity. In this embodiment, the lateral movement limitation of the second transmission part 53 can also be achieved by providing a vertical connecting piece 5322 as in the first embodiment. A longitudinally penetrating moving hole 61 is provided within the box body 1, and the lateral movement limitation is achieved by the vertical connecting piece 5322 being movably positioned within the moving hole 61.

[0122] The second difference between this embodiment and the first embodiment is that the lower connecting part 533 is set as an L-shaped structure, which is integrally formed with the earphone top outlet 2, as shown in the reference. Figure 12 and Figure 14 The opening of the C-shaped connecting piece 5321 faces upward, and the support rod 531 is fixedly connected to the C-shaped connecting piece 5321. Preferably, both ends of the support rod 531 extend to both sides of the C-shaped connecting piece 5321 and are respectively connected to the two lower connecting parts 533. Optionally, the lower connecting parts 533 can also be integrally formed with the support rod 531, or the lower connecting parts 533, the support rod 531, and the earphone top mount 2 can be integrally formed.

[0123] The third difference between this embodiment and the first embodiment is that the rotating part 4 is provided with a first shaft hole 41, a second shaft hole 42, and a plurality of grooves 44 that are radially connected to the second shaft hole 42. (Refer to...) Figure 12 and Figure 13 Optionally, the rotating part 4 is provided with three grooves 44 that are radially connected to the second shaft hole 42. A third shaft hole 111 is provided at the opening of the mounting cavity 11. The first rotating shaft 112 is inserted into the third shaft hole 111 and the first shaft hole 41. The rotating part 4 can rotate within the mounting cavity 11 based on the first rotating shaft 112, thereby realizing the rotational opening and closing of the lid 3 and the body 1. Two third shaft holes 111 are symmetrically provided, one installed on one side of the opening of the mounting cavity 11, and the other installed on the other side of the opening of the mounting cavity 11.

[0124] Reference Figure 12 and Figure 14 The first transmission part 51 has a fourth shaft hole 511 at one end, which extends into the groove 44 located in the middle position. The second rotating shaft 512 is inserted into the fourth shaft hole 511 and the second shaft hole 42, and the rotating part 4 can drive the first transmission part 51 to move based on the second rotating shaft 512.

[0125] The fourth difference between this embodiment and the first embodiment is that one end of the elastic member 7 extends into the grooves 44 on both sides and is connected to the second rotating shaft 512, while the other end of the elastic member 7 is connected to the spring connecting part 114. In this embodiment, the elastic drive arm 72 is similar to the structure of the spring body. The second rotating shaft 512 passes through the elastic drive arm 72 and is inserted into the fourth shaft hole 511 and the second shaft hole 42, thereby realizing both the connection between the first transmission part 51 and the rotating part 4, and the connection between the rotating part 4 and the elastic member 7. (Refer to...) Figure 15 and Figure 16 The spring connecting part 114 is disposed within the spring movable space 113. The spring connecting part 114 has a through hole structure, and the middle part of the elastic support arm 73 is engaged within the through hole structure. The first spring body and the second spring body are movably accommodated within the spring movable space 113. The spring connecting part 114 is formed by the connection of a first protrusion extending upward from the bottom surface of the inner side of the lower outer shell 15 and a second protrusion extending downward from the lower inner liner shell 16 with an opening groove at its end.

[0126] In addition, the structure and connection method of the rotating part 4, the transmission assembly 5, and the elastic element 7 can also adopt the structure of the first embodiment, which will not be described in detail here. The structures of the components not described in detail in this embodiment are the same as the corresponding component structures in the first embodiment, and will not be described in detail one by one.

[0127] In this embodiment, when the cover of the headphone charging device rotates to open and close relative to the body, the rotating part drives the first transmission part and the second transmission part to move up and down as a whole, and the first transmission part and the second transmission part slide relative to each other in the guide groove through the transmission shaft to achieve relative lateral movement. This can realize the raising and lowering of the headphones and prevent the transmission components from jamming during the raising and lowering of the headphones, ensuring the smoothness of the raising and lowering of the headphones and improving the comfort of the user experience.

[0128] Third embodiment:

[0129] The difference between this embodiment and the first embodiment is that the guide groove 54 provided at one end of the second transmission part 53 is an arc-shaped sliding groove, and the guide groove 54 extends and curves towards the outside of the box body 1. In this embodiment, the end of the guide groove 54 near the outside of the box body 1 is lower than the end near the inside of the box body 1, as shown in the reference. Figure 18 and Figure 19 .

[0130] Specifically, the arc-shaped guide groove 54 is provided on the two opposite sides of the C-shaped connecting piece 5321, and the drive shafts 52 extending from both sides of the first drive part are slidably connected in the guide groove 54. The first drive part slides in the guide groove 54 through the drive shafts 52, realizing that when the rotating part 4 flips, the lateral thrust and longitudinal thrust push the first drive part to move laterally and longitudinally relative to the second drive part, preventing jamming and other situations.

[0131] In this embodiment, the opening of the C-shaped connecting piece 5321 faces upward. The support rod 531 consists of two parts, which are respectively connected to both sides of the C-shaped connecting piece 5321, as shown in the figure. Figure 18 and Figure 19 The upper connecting portion 532 also includes a vertical connecting piece 5322. One end of the vertical connecting piece 5322 is connected to the bottom surface of the C-shaped connecting piece 5321, and the other end extends to the bottom of the support rod 531. The vertical connecting piece 5322 is used to longitudinally move within the moving hole 61, thereby restricting the lateral movement of the second transmission part and preventing jamming. The moving hole 61 is configured in the same way as in the first embodiment, and will not be described again here. In addition, the vertical connecting piece 5322 can also be connected between the C-shaped connecting piece 5321 and the support rod 531, as in the first embodiment.

[0132] In other alternative implementations, the upper connecting part 532 may not have a vertical connecting piece 5322, and the corresponding box body may not have a moving hole; instead, a snap-fit ​​part 5323 may be provided on one side of the C-shaped connecting piece 5321, as shown in the figure. Figure 14 Correspondingly, a second slot 13 is provided on the inner wall of the box body 1. Specifically, the second slot 13 can be provided on the inner side of the lower outer shell 15, as shown in the figure. Figure 17 The snap-fit ​​part 5323 and the second slot 13 are arranged opposite to each other. The C-shaped connecting piece 5321 is slidably connected to the second slot 13 through the snap-fit ​​part 5323, thereby achieving lateral positioning with the box body 1, so that the second transmission part 53 can only move up and down within the mounting cavity.

[0133] The difference between this embodiment and the first embodiment lies in the structure of the first transmission part 51. The first transmission part 51 includes a fixed block 515, a sliding block 516, and a damping element 517. (Refer to...) Figures 18-20 The fixed block 515 includes a moving groove 5151 and a clearance groove 5152. The moving groove 5151 is a horizontally extending groove with its opening facing outwards. The clearance groove 5152 is longitudinally connected to the moving groove 5151, and the width of the clearance groove 5152 is smaller than the width of the moving groove 5151. Figure 20 The sliding block 516 includes a mounting plate 5161, a movable plate 5162, and an extension plate 5163 connected sequentially from top to bottom, as shown in the figure. Figure 19The mounting plate 5161 is horizontally arranged, with one end connected to the rotating part 4 and the other end movably connected to the moving groove 5151. The moving plate 5162 is vertically arranged and installed in the clearance groove 5152. The extension plate 5163 is located below the fixing block 515, and the two sides of the extension plate 5163 are provided with drive shafts 52 that cooperate with the guide groove 54. The damping element 517 is connected between the inner wall of the mounting plate 5161 and the moving groove 5151. The fixing block 515 is located in the mounting cavity and can move up and down with the first transmission part 51. When the rotating part 4 rotates, it pushes the mounting plate 5161 to move in the moving groove 5151. The mounting plate 5161 drives the fixing block 515 to move up and down, and pushes the drive shaft 52 of the extension plate 5163 to slide relative to each other in the guide groove 54 through the moving plate 5162, thereby driving the second transmission part and the headphone top seat to move up and down.

[0134] The fixing block 515 can move up and down with the first transmission part. Specifically, the inner wall of the box body 1 can be provided with a sliding groove, and the fixing block 515 can be slidably connected in the sliding groove.

[0135] In this embodiment, the connection method and structure between the elastic element 7, the rotating part 4, and the box body 1 can all adopt the examples from the first and second embodiments. The structures of components not described in detail in this embodiment are the same as the corresponding component structures in the first embodiment, and will not be described in detail again.

[0136] In this embodiment, when the cover of the headphone charging device rotates to open and close relative to the body, the rotating part drives the first transmission part and the second transmission part to move up and down as a whole, and the first transmission part and the second transmission part slide relative to each other in the guide groove through the transmission shaft to achieve relative lateral movement. This can realize the raising and lowering of the headphones and prevent the transmission components from jamming during the raising and lowering of the headphones, ensuring the smoothness of the raising and lowering of the headphones and improving the comfort of the user experience.

[0137] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An earphone charging device, characterized by, The earphone charging device comprises: a box body (1) comprising a communicating mounting cavity (11) and an earphone placing cavity (12); a box cover (3) rotationally connected with the box body (1); a transmission assembly (5) arranged in the mounting cavity (11), the transmission assembly (5) comprising a first transmission part (51) and a second transmission part (53), one end of the first transmission part (51) being connected with the box cover (3), the other end of the first transmission part (51) being provided with a transmission shaft (52), one end of the second transmission part (53) being provided with a guide groove (54), the transmission shaft (52) being connected in the guide groove (54), the other end of the second transmission part (53) abutting against an earphone located in the earphone placing cavity (12); wherein, when the box cover (3) is opened and closed relative to the box body (1), the first transmission part (51) and the second transmission part (53) move longitudinally as a whole in the mounting cavity (11), and the first transmission part (51) and the second transmission part (53) relatively move laterally through cooperation of the transmission shaft (52) and the guide groove (54).

2. The earphone charging device of claim 1, wherein, The second transmission part (53) comprises: a support rod (531), the extension direction of the support rod (531) being parallel to the transmission shaft (52); an upper connecting part (532) fixed on the support rod (531), the guide groove (54) being arranged on the upper connecting part (532); a lower connecting part (533) having one end connected with the support rod (531) and the other end extending to abut against the earphone.

3. The earphone charging device of claim 2, wherein, The upper connecting part (532) comprises a C-shaped connecting piece (5321), the C-shaped connecting piece (5321) being provided with the guide grooves (54) on two opposite sides thereof; the lower connecting part (533) being L-shaped and comprising a first rod (5331) and a second rod (5332), the first rod (5331) being fixedly connected with the support rod (531), and the second rod (5332) being connected with the earphone to abut against the same.

4. The earphone charging device of claim 3, wherein, The C-shaped connecting piece (5321) is provided with the horizontally extending guide grooves (54) on two opposite sides thereof, the first transmission part (51) being an arc-shaped connecting rod, one end of the arc-shaped connecting rod being rotationally connected with the box cover (3), the other end of the arc-shaped connecting rod being provided with the transmission shaft (52), the other end of the arc-shaped connecting rod extending into an opening of the C-shaped connecting piece (5321), and two ends of the transmission shaft (52) being connected into two guide grooves (54) respectively.

5. The earphone charging device of claim 3, wherein, The upper connecting part (532) further comprises a vertical connecting piece (5322) connected between the C-shaped connecting piece (5321) and the support rod (531).

6. The earphone charging device of claim 3, wherein, The C-shaped connecting piece (5321) is provided with the arc-shaped guide grooves (54) on two opposite sides thereof, the guide grooves (54) extending curvedly towards the outside of the box body (1); The upper connecting part (532) further comprises a vertical connecting piece (5322), one end of the vertical connecting piece (5322) is connected with the C-shaped connecting piece (5321), and the other end of the vertical connecting piece (5322) extends below the support rod (531).

7. The earphone charging device according to claim 5 or 6, characterized in that, The earphone charging device further comprises a connecting plate (6) arranged in the mounting cavity (11), the connecting plate (6) is connected with the box body (1) to form a longitudinal moving hole (61), and the vertical connecting piece (5322) is longitudinally movably connected in the moving hole (61).

8. The earphone charging device according to claim 7, wherein, The box body (1) is provided with a limiting plate (14) extending into the mounting cavity (11), the limiting plate (14) comprises a main body portion (141) and two limiting portions (142), the two limiting portions (142) are respectively arranged at two ends of the main body portion (141), and first clamping grooves (143) are respectively formed between the two limiting portions (142) and the main body portion (141). The connecting plate (6) comprises a curved portion (62) and two planar portions (63), the two planar portions (63) are respectively connected at two ends of the curved portion (62) and extend in opposite directions, the two planar portions (63) are respectively clamped in the two first clamping grooves (143), and the main body portion (141) and the curved portion (62) surround the moving hole (61).

9. The earphone charging device of claim 3, wherein, The inner wall of the box body (1) is provided with a second clamping groove (13), the upper connecting part (532) further comprises a clamping portion (5323), the clamping portion (5323) is connected to one side of the C-shaped connecting piece (5321) facing the second clamping groove (13), and the clamping portion (5323) is slidably connected in the second clamping groove (13).

10. The earphone charging device of claim 6, wherein, The first transmission portion (51) comprises: A fixed block (515) is slidably connected with the inner wall of the box body (1), the fixed block (515) comprises a moving groove (5151) and an avoiding groove (5152), and the avoiding groove (5152) is longitudinally penetrated with the moving groove (5151); A sliding block (516) comprises an installation plate (5161), a moving plate (5162) and an extension plate (5163) connected in sequence from top to bottom, one end of the installation plate (5161) is connected with the box cover (3), the other end of the installation plate (5161) is movably connected in the moving groove (5151), the moving plate (5162) is arranged in the avoiding groove (5152), the extension plate (5163) is located below the fixed block (515), and the extension plate (5163) is provided with the transmission shaft (52) matched with the guide groove (54) on both sides of the extension plate (5163); A damping element (517) is connected between the installation plate (5161) and the inner wall of the moving groove (5151).

11. The earphone charging device of claim 1, wherein, The earphone charging device further comprises an elastic member (7) arranged in the mounting cavity (11), one end of the elastic member (7) is connected with the box cover (3), and the other end of the elastic member (7) is connected with the side wall of the box body (1).

12. The earphone charging device of claim 11, wherein, The earphone charging device further comprises a rotating part (4) fixed on the box cover (3), wherein the rotating part (4) is provided with a first shaft hole (41), a second shaft hole (42) and a spring positioning hole (43), and the second shaft hole (42) is located between the first shaft hole (41) and the spring positioning hole (43); A third shaft hole (111) is arranged at the cavity opening of the mounting cavity (11), a first rotating shaft (112) is inserted into the third shaft hole (111) and the first shaft hole (41), and the rotating part (4) can rotate in the mounting cavity (11) based on the first rotating shaft (112); One end of the first transmission part (51) is provided with a fourth shaft hole (511), and a second rotating shaft (512) is inserted into the fourth shaft hole (511) and the second shaft hole (42); The mounting cavity (11) is provided with a spring moving space (113) and a spring connecting part (114), the elastic member (7) is movably accommodated in the spring moving space (113), one end of the elastic member (7) is connected in the spring positioning hole (43), and the other end of the elastic member (7) is connected to the spring connecting part (114).

13. The earphone charging device of claim 11, wherein, The earphone charging device further comprises a rotating part (4) fixed on the box cover (3), wherein the rotating part (4) is provided with a first shaft hole (41), a second shaft hole (42) and a plurality of grooves (44) in radial communication with the second shaft hole (42); A third shaft hole (111) is arranged at the cavity opening of the mounting cavity (11), a first rotating shaft (112) is inserted into the third shaft hole (111) and the first shaft hole (41), and the rotating part (4) can rotate in the mounting cavity (11) based on the first rotating shaft (112); One end of the first transmission part (51) is provided with a fourth shaft hole (511), and a second rotating shaft (512) is inserted into the fourth shaft hole (511) and the second shaft hole (42); The mounting cavity (11) is provided with a spring moving space (113) and a spring connecting part (114), the elastic member (7) is movably accommodated in the spring moving space (113), one end of the elastic member (7) is connected in the spring positioning hole (43), and the other end of the elastic member (7) is connected to the spring connecting part (114).

14. The earphone charging device of claim 1, wherein, The first transmission part (51) is an arc-shaped connecting rod, the guide groove (54) is a horizontal sliding groove, and the length direction of the guide groove (54) is perpendicular to the transmission shaft (52).

15. The earphone charging device of claim 1, wherein, The guide groove (54) is an arc-shaped sliding groove, and the guide groove (54) extends curvedly towards the outside of the box body (1).

16. The earphone charging device of claim 1, wherein, The earphone placing cavity (12) comprises two earphone accommodating cavities (121) arranged side by side, and the bottom of each of the two earphone accommodating cavities (121) is a hollow structure. The earphone charging device further comprises an earphone ejection seat (2) provided with two earphone holders (21), the two earphone holders (21) are respectively slidably connected with the inner walls of the bottoms of the two earphone accommodating cavities (121), and the two earphone holders are fixedly connected with the second transmission part.

17. The earphone charging device of claim 16, wherein, The earphone charging device further comprises: A conductive needle (8) fixed in the earphone holder (21), the conductive needle (8) is electrically connected with the earphone; A power supply and a circuit board (9) fixed in the mounting cavity (11) and electrically connected with each other, the circuit board (9) is fixedly connected below the earphone holder (21), and the circuit board (9) is electrically connected with the conductive needle (8).

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