Charging box and TWS earphone

Abstract

The utility model relates to a charging box and a TWS earphone, the charging box comprises a box body, a rotary cover and a self-locking device, and the box body is provided with an accommodating groove for accommodating the earphone; the box body is provided with at least two positioning holes, namely a first positioning hole and a second positioning hole; the rotary cover is rotationally connected with the box body and is used for covering or opening the accommodating groove; the self-locking device is connected to the rotary cover; the self-locking device comprises a telescopic piece, and the telescopic piece can move to be inserted into or withdrawn from the positioning hole, so that the rotary cover and the box body are locked or unlocked; when the rotary cover covers the accommodating groove, the telescopic piece is inserted into the first positioning hole; when the rotary cover opens the containing groove, the telescopic piece is inserted into the second positioning hole. According to the charging box, the telescopic piece is matched with the positioning hole, so that the charging box can be self-locked in the covering and opening states, and the purpose of improving the stability is achieved.

Description

Technical Field

[0001] This application relates to the field of headphone devices, and more particularly to a charging case and TWS earphones. Background Technology

[0002] TWS (True Wireless Stereo) earphones are a type of wireless earphone that includes earphones and a charging case for storing and charging the earphones.

[0003] In related technologies, the charging case for TWS earbuds includes a lid and a case body. The lid can be opened by flipping, sliding, or rotating to take out and put in the earbuds. Among them, in the rotating charging case, the lid and the case body are rotated together by two pivots, and the structure and function are relatively simple.

[0004] With the diversification of charging case interaction methods, some charging cases have screens. When the lid is open and the user needs to operate the screen, the unstable position of the flip lid can affect the user's operating experience. Utility Model Content

[0005] This application provides a charging case and TWS earphones, so that the charging case can be self-locking in both closed and open states, thereby improving stability.

[0006] In a first aspect, this application provides a charging case, comprising:

[0007] The housing has a receiving slot for accommodating the earphones; the housing has at least two positioning holes: a first positioning hole and a second positioning hole;

[0008] A rotating lid is rotatably connected to the box body for closing or opening the receiving slot;

[0009] A self-locking device is connected to the rotating cover; the self-locking device includes a telescopic component that can be moved to insert into or retract from the positioning hole, so as to lock or unlock the rotating cover with the box body.

[0010] When the rotating cover rotates relative to the box body, it drives the self-locking device to rotate relative to the box body, thereby driving the telescopic member to rotate relative to the box body, so that the telescopic member can move between the first positioning hole and the second positioning hole.

[0011] When the rotating cover closes the receiving groove, the telescopic member is inserted into the first positioning hole; when the rotating cover opens the receiving groove, the telescopic member is inserted into the second positioning hole.

[0012] Furthermore, the box body is provided with an assembly hole, and the positioning hole is provided on the wall of the assembly hole;

[0013] The rotating cover is provided with a mounting base, which is rotatably connected to the mounting hole; the self-locking device is connected to the mounting base and located within the mounting hole.

[0014] The rotating cover rotates, causing the mounting base to rotate, which in turn causes the self-locking device to rotate, so that the telescopic member slides along the wall of the mounting hole (1d).

[0015] Furthermore, the self-locking device also includes a rotating seat, which is connected to the mounting seat and forms a mounting cavity with the mounting seat. The telescopic member is movably inserted into the mounting cavity, and one end of the telescopic member extends out of the mounting cavity.

[0016] Furthermore, the telescopic member includes:

[0017] A positioning pin is movably inserted into the mounting cavity, with one end extending out of the mounting cavity to be inserted into or removed from the positioning hole;

[0018] A first elastic element, the two ends of which are respectively connected to the cavity wall of the mounting cavity and the positioning pin.

[0019] Furthermore, the rotating cover is provided with a button hole, which passes through the mounting base and communicates with the mounting cavity;

[0020] The self-locking device also includes a button component, which is movably inserted through the button hole; one end of the button component is inserted into the mounting cavity and connected to the positioning pin; the other end of the button component extends out of the button hole to be exposed outside the charging case.

[0021] When the button is pressed and moved by an external force, it drives the telescopic component to move, so that the telescopic component exits the positioning hole.

[0022] Furthermore, the moving direction of the button is perpendicular to the moving direction of the positioning pin;

[0023] The button component has a first inclined surface, and the first inclined surface forms an angle with the moving direction of the button component;

[0024] The locating pin has a slide protruding from its periphery, and the slide has a second inclined surface, which forms an angle with the moving direction of the telescopic member.

[0025] The second inclined surface is in contact with the first inclined surface and is slidably disposed therein.

[0026] Furthermore, the button component includes:

[0027] A button cover is movably disposed through the button hole, and at least a portion of the button cover is exposed outside the charging case;

[0028] A push leg is connected to the button cover, and the push leg is provided with the first inclined surface.

[0029] Furthermore, the rotating seat is provided with a clearance hole, the pushing leg is movably inserted through the clearance hole, and the end of the pushing leg away from the button cover is provided with a limiting foot; the limiting foot can be moved to abut against the side of the rotating seat away from the button cover.

[0030] Furthermore, the self-locking device also includes a second elastic element located within the button hole, one end of which is connected to the button element and the other end of which is connected to the mounting base.

[0031] Furthermore, it also includes a third elastic element, one end of which is connected to the box body and the other end of which is connected to the self-locking device.

[0032] Furthermore, the self-locking device is provided with a fixing post and a first positioning block, and the box body is provided with a second positioning block;

[0033] The third elastic element is a torsion spring, which is sleeved on the fixed post. The first lever arm of the torsion spring is slidably connected to the first positioning block, and the second lever arm of the torsion spring is slidably connected to the second positioning block.

[0034] Secondly, this application also provides a TWS earphone, including:

[0035] earphone;

[0036] As described above, the earphones are detachably housed within the receiving slot of the charging case.

[0037] The technical solution provided in this application has the following advantages compared with the prior art:

[0038] In this application's technical solution, a self-locking device is connected to the rotating cover. When the rotating cover and the box body rotate relative to each other, the self-locking device moves synchronously with the rotating cover. That is, the self-locking device and the box body can rotate relative to each other, causing the telescopic component to rotate relative to the box body, and the telescopic component moves between the first positioning hole and the second positioning hole. When the rotating cover rotates to the closed receiving slot, and the self-locking device rotates to the position of the telescopic component corresponding to the first positioning hole of the box body, the telescopic component moves to insert into the first positioning hole, locking the telescopic component with the box body, thereby achieving the locking of the box body and the rotating cover. This achieves the self-locking purpose of the box body and the rotating cover when the charging box is closed, improving stability and preventing separation. When the rotating cover rotates to the open receiving slot, and the self-locking device rotates to the position of the telescopic component corresponding to the second positioning hole of the box body, the telescopic component moves to insert into the second positioning hole, locking the telescopic component with the box body, thereby achieving the locking of the box body and the rotating cover. This achieves the self-locking purpose of the box body and the rotating cover when the charging box is open, improving stability and preventing shaking or relative rotation. Attached Figure Description

[0039] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0042] Figure 1 This is a schematic diagram of the structure of a charging box provided in an embodiment of this application;

[0043] Figure 2 for Figure 1 Partially exploded diagram;

[0044] Figure 3 for Figure 2 A schematic diagram of the decomposition process;

[0045] Figure 4 for Figure 3 A schematic diagram of the middle section structure;

[0046] Figure 5 for Figure 1 A sectional view;

[0047] Figure 6 for Figure 1 A cross-sectional view from another direction.

[0048] Explanation of reference numerals in the attached figures:

[0049] Charging box 100, box body 1, receiving slot 1a, box body 11, upper shell 111, lower shell 112, inner liner 12, first positioning hole 1b, second positioning hole 1c, assembly hole 1d, assembly protrusion ring 13, second positioning block 14, rotating cover 2, assembly seat 21, button hole 2a, support block 22, telescopic component 31, positioning pin 311, second inclined surface 311a, slide table 3111, first elastic component 312, rotating seat 32, clearance hole 32a, mounting cavity 3a, button component 33, first inclined surface 33a, button cover 331, pushing leg 332, limiting foot 3321, second elastic component 34, fixing post 35, first positioning block 36, third elastic component 4, first lever arm 41, second lever arm 42. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0052] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0053] To address the technical problem of unstable charging cases in existing technologies, this application provides a charging case that can achieve self-locking when the charging case is in both closed and open states, thereby improving positional stability.

[0054] Figures 1 to 5 A charging case 100 provided in this application embodiment includes a case body 1, a rotating cover 2, and a self-locking device. The case body 1 has a receiving slot 1a for accommodating earphones; the case body 1 has at least two positioning holes: a first positioning hole 1b and a second positioning hole 1c; the rotating cover 2 is rotatably connected to the case body 1 for closing or opening the receiving slot 1a; the self-locking device is connected to the rotating cover 2; the self-locking device includes a telescopic member 31, which can move to insert into or exit the positioning hole to lock or unlock the rotating cover 2 and the case body 1; wherein, when the rotating cover 2 rotates relative to the case body 1, it drives the self-locking device to rotate relative to the case body 1, thereby driving the telescopic member 31 to rotate relative to the case body 1, so that the telescopic member 31 moves between the first positioning hole 1b and the second positioning hole 1c; and when the rotating cover 2 closes the receiving slot 1a, the telescopic member 31 is inserted into the first positioning hole 1b; when the rotating cover 2 opens the receiving slot 1a, the telescopic member 31 is inserted into the second positioning hole 1c.

[0055] The self-locking device is connected to the rotating cover 2. When the rotating cover 2 and the box body 1 rotate relative to each other, the self-locking device moves synchronously with the rotating cover 2. That is, the self-locking device and the box body 1 can rotate relative to each other, so that the telescopic member 31 can rotate relative to the box body 1, and the telescopic member 31 moves between the first positioning hole 1b and the second positioning hole 1c. When the rotating cover 2 rotates to the closing receiving groove 1a, and the self-locking device rotates to the position of the telescopic member 31 corresponding to the first positioning hole 1b of the box body 1, the telescopic member 31 moves to insert into the first positioning hole 1b, so that the telescopic member 31 locks with the box body 1, thereby realizing the locking of the box body 1 and the rotating cover 2. This achieves the purpose of self-locking of the box body 1 and the rotating cover 2 when the charging box 100 is in the closed state, improving stability and making it less likely to separate. When the rotating cover 2 is rotated to open the receiving groove 1a, and the self-locking device is rotated to the position of the telescopic member 31 corresponding to the second positioning hole 1c of the box body 1, the telescopic member 31 moves to be inserted into the second positioning hole 1c, so that the telescopic member 31 is locked with the box body 1, thereby realizing the locking of the box body 1 and the rotating cover 2, realizing the purpose of self-locking of the box body 1 and the rotating cover 2 when the charging box 100 is in the open state, improving stability, and making it less likely to shake or rotate relative to each other.

[0056] When the telescopic component 31 moves to the exit positioning hole, the lock between the box body 1 and the rotating cover 2 is released, and the box body 1 and the rotating cover 2 can rotate relative to each other under the action of external force, and the user can perform actions on the box body 1 or the rotating cover 2.

[0057] It is understood that in some other embodiments, the number of positioning holes can be three or more. For example, a screen is provided on one side of the housing 1, allowing the user to perform interactive operations. When there are three positioning holes, the three positioning holes are the first positioning hole 1b, the second positioning hole 1c, and the third positioning hole, respectively. When the telescopic member 31 is inserted into the first positioning hole 1b, the rotating cover 2 closes the receiving groove 1a; when the telescopic member 31 is inserted into the second positioning hole 1c, the rotating cover 2 rotates to open the receiving groove 1a, and the housing 1 and the rotating cover 2 form a first angle (e.g., 90°), which can ensure that the operation of taking out and putting in the earphones is carried out smoothly. Meanwhile, when the user operates the screen at this time, the positions of the box body 1 and the rotating cover 2 are locked, preventing rotation and improving user comfort. When the telescopic component 31 is inserted into the third positioning hole, the rotating cover 2 rotates to form a second angle with the box body 1, which is smaller than the first angle, for example, the second angle is 45°. This makes it easier for the user to operate the screen on the box body 1. During operation, the positions of the box body 1 and the rotating cover 2 are locked, preventing rotation and improving user comfort.

[0058] like Figure 2 and Figure 5As shown, in the technical solution of this application, the box body 1 is provided with an assembly hole 1d, and the wall of the assembly hole 1d is provided with a positioning hole; the rotating cover 2 is provided with an assembly base 21, which is rotatably connected to the assembly hole 1d; the self-locking device is connected to the assembly base 21 and is located within the assembly hole 1d. Thus, through the rotational engagement of the assembly base 21 and the assembly hole 1d, the rotating cover 2 and the box body 1 are rotatably connected, with the assembly base 21 acting as a rotating shaft. The self-locking device is connected to the assembly base 21 and is located within the assembly hole 1d, and the wall of the assembly hole 1d is provided with a positioning hole. This achieves the purpose of designing a self-locking structure at the rotational connection between the box body 1 and the rotating cover 2, making reasonable use of the structure of the rotating cover 2 and the box body 1 themselves, without increasing the volume of the charging box 100, and reducing the occupation of the internal space of the charging box 100.

[0059] like Figure 2 and Figure 3 As shown, in the technical solution of this application, the housing 1 includes a housing body 11 and an inner liner 12. The housing body 11 has a receiving cavity, and the inner liner 12 is disposed in the receiving cavity. The inner liner 12 has a receiving groove 1a for receiving the earphone. The assembly hole 1d communicates with the receiving cavity.

[0060] like Figure 2 and Figure 3 As shown, in the technical solution of this application, the cavity wall of the receiving cavity is provided with an assembly protrusion ring 13, which surrounds the assembly hole 1d. The assembly protrusion ring 13 is provided with a first positioning hole 1b and a second positioning hole 1c. The self-locking device is located inside the assembly protrusion ring 13, and the assembly protrusion ring 13 provides support for the self-locking device. Furthermore, by providing the assembly protrusion ring 13, the machining of the positioning hole can be facilitated.

[0061] like Figure 2 and Figure 3 As shown, in the technical solution of this application, the box body 11 includes an upper shell 111 and a lower shell 112, which together form the accommodating cavity and the assembly hole 1d. The assembly protrusion 13 includes a first half-ring and a second half-ring, the first half-ring being connected to the upper shell 111 and the second half-ring being connected to the lower shell 112. The first positioning hole 1b is formed by the first half-ring and the second half-ring, and the second positioning hole 1c is located in the second half-ring. It is understood that designing the box body 11 as a separable structure facilitates the installation of the box body 1, the rotating cover 2, and the self-locking device, reducing assembly difficulty.

[0062] To facilitate the installation of the telescopic component 31, Figure 6As shown, in the technical solution of this application, the self-locking device also includes a rotating seat 32, which is connected to the mounting seat 21 and forms an installation cavity 3a with the mounting seat 21. Through the connection between the rotating seat 32 and the mounting seat 21, the self-locking device and the rotating cover 2 can rotate synchronously. The telescopic member 31 is movably inserted into the installation cavity 3a, and one end of the telescopic member 31 extends out of the installation cavity 3a, ensuring that the end of the telescopic member 31 extending out of the installation cavity 3a can be inserted into or removed from the positioning hole, thereby locking or unlocking the box 1 and the rotating cover 2.

[0063] like Figure 6 As shown, in the technical solution of this application, the telescopic member 31 includes a positioning pin 311 and a first elastic member 312. The positioning pin 311 is movably inserted into the mounting cavity 3a, with one end extending out of the mounting cavity 3a to insert into or retract from the positioning hole. The two ends of the first elastic member 312 are respectively connected to the cavity wall of the mounting cavity 3a and the positioning pin 311. When the positioning pin 311 rotates with the rotation of the rotating cover 2 and the rotating seat 32, the positioning pin 311 abuts against the hole wall of the assembly hole 1d under the action of the first elastic member 312 and slides along the hole wall. When the positioning pin 311 slides to the position of the positioning hole, the positioning pin 311 is inserted into the positioning hole under the action of the first elastic member 312, thereby locking it. Under the force of the first elastic member 312, the positioning pin 311 is stably inserted into the positioning hole. Thus, the self-locking of the box body 1 and the rotating cover 2 is achieved by the force of the first elastic member 312 on the positioning pin 311.

[0064] In this embodiment, reference Figure 4 , Figure 5 and Figure 6 The end of the positioning pin 311 facing the positioning hole is arc-shaped. This facilitates the positioning pin 311 from leaving the positioning hole and reduces the friction between the positioning pin 311 and the wall of the assembly hole 1d.

[0065] The user directly applies force to the rotating cover 2 and the box body 1, transmitting the force through the rotating cover 2 to the telescopic component 31, causing the telescopic component 31 to disengage from the positioning hole. This requires applying a relatively large force. To facilitate easier unlocking of the box body 1 and the rotating cover 2, as follows... Figure 6As shown, in the technical solution of this application, the rotating cover 2 is provided with a button hole 2a, which passes through the mounting base 21 and communicates with the mounting cavity 3a; the self-locking device also includes a button 33, which is movably inserted through the button hole 2a; one end of the button 33 is inserted into the mounting cavity 3a and connected to the positioning pin 311; the other end of the button 33 extends out of the button hole 2a and is exposed outside the charging box 100; the button 33 is exposed outside the charging box 100, which makes it convenient for the user to press the button 33 directly. When the button 33 is pressed by an external force, it moves toward the box body 1. When the button 33 moves, it drives the telescopic member 31 to move, so that the telescopic member 31 exits the positioning hole, thereby unlocking the box body 1 and the rotating cover 2.

[0066] Understandably, the design of button 33 allows users to easily unlock the device manually.

[0067] In some other embodiments, the positioning pin 311 is connected to the electric drive structure, and when the electric drive structure is started, it moves the positioning pin 311 to the exit positioning hole. The electric drive structure can be controlled by a control system, which starts the electric drive structure after receiving an unlocking command from the user.

[0068] In some other embodiments, the telescopic member 31 itself may be made of an elastic material, and the telescopic member 31 may be inserted into or withdrawn from the positioning hole by means of its own elasticity.

[0069] like Figure 3 and Figure 4 As shown, in the technical solution of this application, the moving direction of the button 33 is perpendicular to the moving direction of the positioning pin 311; the button 33 is provided with a first inclined surface 33a, which forms an angle with the moving direction of the button 33; a slide 3111 protrudes from the periphery of the positioning pin 311, and the slide 3111 is provided with a second inclined surface 311a, which forms an angle with the moving direction of the telescopic member 31; the second inclined surface 311a fits against and slides against the first inclined surface 33a. This design is simple in structure. When the button 33 is pressed and moves along the first direction, the cooperation of the first inclined surface 33a and the second inclined surface 311a pushes the slide 3111 to move along the second direction, thereby causing the positioning pin 311 to move along the second direction and exit the positioning hole. (Referring to...) Figure 6 The first direction is the axial direction of the button hole 2a; the second direction is the radial direction of the mounting hole 1d. In this embodiment, the first direction is perpendicular to the second direction.

[0070] like Figure 3 and Figure 4As shown, in the technical solution of this application, the button 33 includes a button cover 331 and a push leg 332. The button cover 331 is movably disposed in the button hole 2a, and at least a portion of the button cover 331 is exposed outside the charging box 100. The push leg 332 is connected to the button cover 331, and the push leg 332 is provided with a first inclined surface 33a.

[0071] Understandably, the button cover 331 has a large area, which can distribute the force between the user and the button cover 331, reduce the pressure felt by the user when pressing, and improve the user's comfort.

[0072] In this embodiment, to improve the stability of the movement of the positioning pin 311, there are two pushing legs 332, and the positioning pin 311 is located between the two pushing legs 332.

[0073] In this embodiment, the button cover 331 is circular and can be adapted to the circular button hole 2a, thus improving the appearance.

[0074] In other embodiments, the button cover 331 may also be in other shapes such as square, and is not limited thereto.

[0075] like Figure 2 , Figure 3 and Figure 4 As shown, in the technical solution of this application, the rotating seat 32 is provided with a clearance hole 32a, the push leg 332 is movably inserted through the clearance hole 32a, and the end of the push leg 332 away from the button cover 331 is provided with a limiting foot 3321; the limiting foot 3321 can be moved to abut against the side of the rotating seat away from the button cover 331.

[0076] Understandably, the clearance hole 32a provides movement space for the push leg 332, reducing the space occupied by the self-locking device, and also guides the movement of the push leg 332. The limiting foot 3321 serves a limiting function, preventing the button 33 from disengaging and improving the structural stability of the self-locking device.

[0077] like Figure 3 , Figure 4 and Figure 6 As shown, in the technical solution of this application, the self-locking device further includes a second elastic member 34 located in the button hole 2a. One end of the second elastic member 34 is connected to the button member 33, and the other end is connected to the mounting base 21. The second elastic member 34 can provide a force to the button cover 331. When the pressing force on the button cover 331 disappears, the second elastic member 34 drives the button cover 331 to reset.

[0078] In this embodiment, a support block 22 is provided inside the button hole 2a, and the second elastic element 34 is connected to the support block 22. The support block 22 provides support and positioning for the second elastic element 34.

[0079] To simplify the structure, in this embodiment, the telescopic member 31 is slidably located between the support block 22 and the rotating seat 32.

[0080] like Figure 2 , Figure 3 and Figure 4 As shown, the technical solution of this application also includes a third elastic element 4, one end of which is connected to the box body 1 and the other end is connected to the self-locking device. When the box body 1 and the rotating cover 2 are unlocked, the third elastic element 4 provides elastic force to the box body 1 and the rotating cover 2 respectively, causing the box body 1 and the rotating cover 2 to rotate.

[0081] For example, in this embodiment, when the charging box 100 is in the closed state, the button 33 is pressed, the positioning pin 311 exits the first positioning hole 1b, and the box body 1 and the rotating cover 2 are unlocked. At this time, the box body 1 and the rotating cover 2 rotate relative to each other under the rotation of the third elastic member 4, and the operation of opening the charging box 100 is automatically completed.

[0082] When the charging case 100 is in the open state, the button 33 is pressed, the positioning pin 311 is disengaged from the second positioning hole 1c, and the case 1 and the rotating cover 2 are unlocked. At this time, the case 1 and the rotating cover 2 can rotate relative to each other under the action of external force, thus completing the operation of closing the charging case 100. During the process of closing the charging case 100, the user will feel the force of the third elastic element 4. The case 1 and the rotating cover 2 rotate stably and smoothly under the action of external force and the force of the third elastic element 4, avoiding violent impact between the case 1 and the rotating cover 2 during the closing process.

[0083] like Figure 4 As shown, in the technical solution of this application, the self-locking device is provided with a fixing post 35 and a first positioning block 36, as follows: Figure 2 and Figure 6 As shown, the box body 1 is provided with a second positioning block 14;

[0084] The third elastic element 4 is a torsion spring, which is sleeved on the fixed post 35. The first lever arm 41 of the torsion spring is slidably connected to the first positioning block 36, and the second lever arm 42 of the torsion spring is slidably connected to the second positioning block 14.

[0085] In this embodiment, the fixing post 35 and the first positioning block 36 are disposed on the side of the rotating seat 32 away from the mounting seat 21. The fixing post 35 provides a mounting base for the torsion spring. The first positioning block 36 and the second positioning block 14 provide mounting positioning for the first lever arm 41 and the second lever arm 42 of the torsion spring, respectively. Torque can be provided to the self-locking device and the box 1 through the torsion spring.

[0086] In other embodiments, the third elastic element is a compression cylinder. One end of the compression cylinder is rotatably connected to the self-locking device or the rotating cover, and the other end is rotatably connected to the box body. During the process of the rotating cover and the box body rotating relative to each other to close, the compression cylinder is compressed; during the process of the rotating cover and the box body rotating relative to each other to open, the compression cylinder releases pressure.

[0087] Secondly, this application also provides a TWS earphone, including an earphone and a charging case 100 as described above, wherein the earphone is detachably housed in a receiving slot 1a of the charging case 100. The specific structure of the charging case 100 is as described in the above embodiments. Since this TWS earphone adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0088] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0089] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0090] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0091] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0092] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0093] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0094] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0095] The above description describes specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A charging case, characterized in that, The application relates to a charging box for earphones. The charging box comprises: a box body provided with a receiving groove for accommodating earphones; the box body is provided with at least two positioning holes, i.e., a first positioning hole and a second positioning hole; a rotating cover is rotationally connected to the box body and used for covering or opening the receiving groove; a self-locking device is connected to the rotating cover; the self-locking device comprises an extension member which is movable into or out of the positioning hole so as to lock or unlock the rotating cover and the box body; when the rotating cover rotates relative to the box body, the self-locking device rotates relative to the box body, the extension member rotates relative to the box body, and the extension member moves between the first positioning hole and the second positioning hole; 2. The charging case of claim 1, wherein, when the rotating cover covers the receiving groove, the extension member is inserted into the first positioning hole; when the rotating cover opens the receiving groove, the extension member is inserted into the second positioning hole. The box body is provided with an assembly hole, and the hole wall of the assembly hole is provided with the positioning hole; the rotating cover is provided with an assembly seat which is rotationally connected to the assembly hole; the self-locking device is connected to the assembly seat and located in the assembly hole; 3. The charging case of claim 2, wherein, when the rotating cover rotates, the assembly seat rotates, the self-locking device rotates, and the extension member slides along the hole wall of the assembly hole.

4. The charging case of claim 3, wherein, The self-locking device further comprises a rotating seat which is connected to the assembly seat and forms an installation cavity together with the assembly seat; the extension member is movably inserted into the installation cavity and one end of the extension member extends out of the installation cavity. The extension member comprises: a positioning pin which is movably inserted into the installation cavity and one end of which extends out of the installation cavity so as to be inserted into or out of the positioning hole; 5. The charging case of claim 4, wherein, a first elastic member, two ends of the first elastic member are connected to the cavity wall of the installation cavity and the positioning pin respectively. The rotating cover is provided with a button hole which penetrates through the assembly seat and communicates with the installation cavity; the self-locking device further comprises a button member which is movably inserted into the button hole; one end of the button member is inserted into the installation cavity and connected to the positioning pin; the other end of the button member extends out of the button hole and is exposed outside the charging box; 6. The charging case of claim 5, wherein, when the button member is pressed and moved by external force, the extension member is moved so as to be out of the positioning hole. The moving direction of the button member is perpendicular to the moving direction of the positioning pin; the button member is provided with a first inclined surface which forms an angle with the moving direction of the button member; the positioning pin is provided with a sliding platform on the circumferential side, and the sliding platform is provided with a second inclined surface which forms an angle with the moving direction of the extension member; 7. The charging case of claim 6, wherein, the second inclined surface is in abutment and sliding connection with the first inclined surface. The button member comprises: a button cover which is movably inserted into the button hole and at least a part of which is exposed outside the charging box; a pushing leg which is connected to the button cover and is provided with the first inclined surface.

8. The charging case of claim 7, wherein, The rotating seat is provided with an avoiding hole, the pushing leg is movably arranged in the avoiding hole, and the pushing leg is provided with a limiting clamping leg at an end away from the button cover.

9. The charging case of claim 5, wherein, The self-locking device further comprises a second elastic member in the button hole, one end of the second elastic member is connected to the button member, and the other end is connected to the assembly seat.

10. The charging case of any one of claims 1 to 9, wherein, Further comprising a third elastic member, one end of the third elastic member is connected to the box body, and the other end is connected to the self-locking device.

11. The charging case of claim 10, wherein, The self-locking device is provided with a fixing column and a first positioning block, the box body is provided with a second positioning block; The third elastic member is a torsion spring, the torsion spring is sleeved on the fixing column, and a first force arm of the torsion spring is in sliding connection with the first positioning block, and a second force arm of the torsion spring is in sliding connection with the second positioning block.

12. A TWS earphone, characterized in that, Comprise: Earphone; The earphone is detachably accommodated in the accommodating groove of the charging box according to any one of claims 1 to 11.

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