Earphone box

Abstract

The utility model discloses a kind of earphone boxes, including box body assembly, cover body assembly and elastic piece, box body assembly includes the box body and first connecting part connected, box cover assembly includes cover body and two second connecting parts, cover body is rotatably connected with box body by pivot, two second connecting parts are spaced apart along first direction;Elastic piece includes first connecting arm, two second connecting arms and two elastic structures, the axial direction of first connecting arm and second connecting arm axial direction are all along first direction setting, and along first direction, first connecting arm is between two second connecting arms.The utility model in, the force of second elastic arm to second connecting part and box body is formed in pivot axis direction Symmetrical distribution, when cover body rotates, both sides are always balanced, avoid the deviation of motion track caused by unilateral force too large;And the deformation direction of elastic structure is consistent with pivot rotation plane, reduce lateral component force to the interference of rotating pair, to reduce shake and jamming phenomenon in opening and closing process.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, and in particular to an earphone case. Background Technology

[0002] In related technologies, the earphone case and its lid are connected by an elastic element. The elastic force of the element provides damping during the opening and closing process, keeping the earphone case in either the open or closed state. However, the force distribution of the traditional elastic element acting on the case and lid is uneven, causing jamming or shaking during the opening and closing process. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an earphone case that can reduce the interference of lateral forces on the rotating joint during the rotation of the cover, thereby reducing shaking and jamming during the opening and closing process.

[0004] In a first aspect, embodiments of this application provide an earphone case, comprising:

[0005] The housing assembly includes a connected housing and a first connecting portion.

[0006] The case lid assembly includes a lid body and two second connecting parts. The lid body is rotatably connected to the case body via a pivot to allow the earphone case to switch between an open state and a closed state. The two second connecting parts are connected to the lid body and are spaced apart along a first direction, which is parallel to the axial direction of the pivot.

[0007] An elastic element includes a first connecting arm, two second connecting arms, and two elastic structures. The two elastic structures are respectively connected to the two ends of the first connecting arm. The two first connecting arms are respectively connected to the two elastic structures. The first connecting arm is connected to the first connecting part. The two second connecting arms are respectively connected to the two second connecting parts.

[0008] Wherein, the axial direction of the first connecting arm and the axial direction of the second connecting arm are both set along the first direction, and along the first direction, the first connecting arm is located between the two second connecting arms.

[0009] The earphone case according to this utility model embodiment has at least the following beneficial effects: When the cover rotates around the pivot, the two second connecting parts move synchronously with the cover, causing the two second connecting arms of the elastic element to displace. During this process, the elastic structure undergoes elastic deformation, concentrating the elastic forces on both sides to the first connecting part of the case through the first connecting arm. Since the first connecting arm's axis is parallel to the pivot axis and located in the middle of the two second connecting arms, the elastic forces on both sides are symmetrically distributed along the pivot axis. This symmetrical layout ensures that the forces on both sides remain balanced when the cover rotates, avoiding deviation of the motion trajectory caused by excessive force on one side. The deformation direction of the elastic structure is consistent with the rotation plane of the pivot, reducing the interference of lateral forces on the rotating joint, thereby reducing shaking and jamming during opening and closing.

[0010] According to the first aspect, in one possible implementation, the elastic structure includes a first elastic arm, an elastic spiral portion, and a second elastic arm connected in sequence, wherein the first elastic arm is connected to the first connecting arm, the second elastic arm is connected to the corresponding second connecting arm, and the central axis of the elastic spiral portion is parallel to the axial direction of the rotating shaft.

[0011] According to the first aspect, in one possible implementation, the second connecting portion is provided with a mounting hole, and the second connecting arm is disposed in the corresponding mounting hole; and / or,

[0012] The two second connecting arms are positioned opposite each other.

[0013] According to the first aspect, in one possible implementation, the box body has a receiving cavity and a clearance opening communicating with the receiving cavity; the cover body includes a cover body and a rotating part connected together, the rotating shaft passes through the rotating part and both ends of the rotating shaft are connected to the box body, and the second connecting part is connected to the rotating part; the first connecting part, the elastic member and the second connecting part are all located within the receiving cavity;

[0014] When the earphone case is in the open state, a portion of the rotating part is located within the receiving cavity;

[0015] When the earphone case is in the closed state, the rotating part is located at the clearance opening.

[0016] According to the first aspect, in one possible implementation, the box body includes a support portion disposed opposite to the clearance opening, and a first connecting portion disposed on the side of the support portion facing the clearance opening; the first connecting portion is provided with a mounting groove, a first connecting arm is disposed in the mounting groove, and the first connecting arm abuts against the inner wall of the mounting groove and / or the support portion.

[0017] According to the first aspect, in one possible implementation, the housing includes a first housing and a second housing, the first housing being detachably connected to the second housing, the first housing forming the receiving cavity.

[0018] According to the first aspect, in one possible implementation, the first housing includes two first mounting portions located on both sides of the receiving cavity along a first direction, and the first mounting portions have a first semi-groove.

[0019] The second housing includes two second mounting portions, each with a second half-groove; the second half-groove and the corresponding first half-groove are joined to form a shaft hole, and the two ends of the rotating shaft are respectively disposed in the two shaft holes.

[0020] According to the first aspect, in one possible implementation, the first mounting part has a mounting channel and a limiting groove, the mounting channel has an opening at one end of the first mounting part facing the second housing, the inner wall of the mounting channel opposite to the opening forms the first semi-groove, and the limiting groove is provided on one side of the mounting channel and communicates with the mounting channel.

[0021] The second mounting portion includes a support protrusion and a rib. The top of the support protrusion forms a second semi-groove. The support protrusion extends into the mounting channel from the opening so that the second semi-groove and the first semi-groove fit together to form the shaft hole. The rib is connected to one side of the support protrusion and is limited to the limiting groove along the first direction.

[0022] According to the first aspect, in one possible implementation, the first connecting portion has a bayonet, and the second housing includes an elastic arm and a snap-fit ​​protrusion, the snap-fit ​​protrusion being connected to one end of the elastic arm and engaging with the bayonet to connect the first housing and the second housing.

[0023] According to the first aspect, in one possible implementation, the box body is provided with a first magnetic element, and the cover body is provided with a second magnetic element;

[0024] When the earphone case is in the closed state, the second magnetic component and the first magnetic component are magnetically attracted to each other.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0027] Figure 1This is a schematic diagram of the headphone case in the closed state according to one embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the headphone case in an open state according to one embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the installation structure of the elastic element in one embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the disassembly structure of the earphone box in one embodiment of the present utility model;

[0031] Figure 5 This is a schematic diagram of the elastic element in one embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the box assembly in one embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the internal structure of the mounting cavity in one embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the box cover assembly in one embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the connection structure between the first mounting part and the second mounting part in one embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram showing the installation positions of the first magnetic component and the second magnetic component in one embodiment of the present invention.

[0037] Figure label:

[0038] 100. Box assembly; 110. Box body; 111. Receiving cavity; 112. Clearance opening; 113. Support part; 114. First shell; 1141. First mounting part; 11411. Mounting channel; 11412. Limiting groove; 11413. Bayonet; 1142. First half-groove; 115. Second shell; 1151. Second mounting part; 11511. Support protrusion; 11512. Rib; 1152. Second half-groove; 1153. Elastic arm; 1154. Snap-fit ​​protrusion; 120. First connecting part; 121. Mounting groove; 130. First magnetic component;

[0039] 200. Lid assembly; 210. Lid body; 211. Lid body; 212. Rotating part; 220. Second connecting part; 221. Mounting hole; 230. Second magnetic component;

[0040] 300. Shaft;

[0041] 400, Elastic element; 410, First connecting arm; 420, Second connecting arm; 430, Elastic structure; 431, First elastic arm; 432, Elastic spiral part; 433, Second elastic arm;

[0042] 500. Headphones. Detailed Implementation

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating the direction or positional relationship, are based on the appendix. Figure 2 The orientations or positional relationships shown are 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.

[0045] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0046] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0047] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer 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.

[0048] In existing technology, the earphone case and its lid are connected by an elastic element. The elastic force of the element provides damping during the opening and closing process, keeping the earphone case in either the open or closed state. However, the force distribution of the traditional elastic element acting on the case and lid is uneven, causing jamming or shaking during the opening and closing process.

[0049] To address the aforementioned problems, this application provides an earphone case. For example... Figures 1 to 4 As shown, in the first embodiment, the earphone case includes a case body assembly 100, a case lid assembly 200, and an elastic element 400. The case body assembly 100 includes a case body 110 and a first connecting portion 120 connected together. The case lid assembly 200 includes a cover 210 and two second connecting portions 220. The cover 210 is rotatably connected to the case body 110 via a pivot 300 to achieve an open / closed state switching. The two second connecting portions 220 are spaced apart along the axial direction of the pivot 300. The elastic element 400 includes a first connecting arm 410, two second connecting arms 420, and two elastic structures 430. The two elastic structures 430 are respectively connected to both ends of the first connecting arm 410. The first connecting arm 410 is connected to the first connecting portion 120, and the two second connecting arms 420 are respectively connected to the two second connecting portions 220. The axial directions of the first connecting arm 410 and the second connecting arms 420 are both arranged along the axial direction of the pivot 300, and the first connecting arm 410 is located between the two second connecting arms 420.

[0050] When the cover 210 rotates around the pivot 300, the two second connecting parts 220 move synchronously with the cover 210, causing the two second connecting arms 420 of the elastic element 400 to displace. During this process, the elastic structure 430 undergoes elastic deformation, concentrating the elastic forces from both sides to the first connecting part 120 of the box 110 via the first connecting arm 410. Since the first connecting arm 410 is axially parallel to the axis of the pivot 300 and located between the two second connecting arms 420, the elastic forces on both sides are symmetrically distributed along the axis of the pivot 300. This symmetrical arrangement ensures that the forces on both sides of the cover 210 remain balanced during rotation, preventing deviation of the movement trajectory due to excessive force on one side. The deformation direction of the elastic structure 430 is consistent with the plane of rotation of the pivot 300, reducing the interference of lateral forces on the rotating pair, thereby reducing shaking and jamming during opening and closing.

[0051] The housing assembly 100 refers to the main structure supporting the earphone 500, specifically a molded shell structure. Its first connecting portion 120 can be configured as a boss or a slot to fix the first connecting arm 410 in the middle of the elastic element 400. The second connecting portion 220 in the cover assembly 200 refers to the force transmission interface located on both sides of the cover 210, for example, using a metal insert with mounting holes 221, to form a stable connection with the second connecting arms 420 on both sides of the elastic element 400. The elastic structure 430 refers to a mechanical component with elastic deformation capability, such as a coil spring or an elastic metal sheet. The two ends of the elastic structure 430 are connected to the first connecting arm 410 and the second connecting arm 420 respectively, storing energy through the elastic deformation of the elastic structure 430 during opening and closing. The first connecting arm 410 is positioned between the two second connecting arms 420, forming a symmetrical force transmission path to ensure that the elastic force is symmetrically distributed along the axis of the rotating shaft 300.

[0052] In some embodiments, such as Figures 3 to 5 As shown, the elastic element 400 includes a first connecting arm 410, two elastic structures 430, and two second connecting arms 420. Each elastic structure 430 includes a first elastic arm 431, an elastic spiral portion 432, and a second elastic arm 433 connected in sequence. The first elastic arm 431 is connected to the first connecting arm 410, and the second elastic arm 433 is connected to the corresponding second connecting arm 420. The elastic spiral portion 432 refers to an elastic unit with helical deformation capability, which can be specifically implemented by winding metal wire to form a helical spring structure. The central axis of the elastic spiral portion 432 is parallel to the axial direction of the rotating shaft 300.

[0053] During the opening and closing operation, the second elastic arm 433 generates a torsional force as the second connecting arm 420 displaces. This force is converted into torsional deformation around its own axis through the elastic spiral part 432. Simultaneously, the first elastic arm 431 transmits the reaction force generated by the deformation to the first connecting arm 410. Since the axis of the elastic spiral part 432 is parallel to the axis of the rotating shaft 300, the direction of torsional deformation of the elastic spiral part 432 is spatially orthogonal to the direction of rotation of the cover, resulting in a uniformly distributed torque generated by the elastic element 400 along the axis of the rotating shaft 300.

[0054] Understandably, when the headphone case is open, the larger the opening angle of the cover 210, the greater the deformation space required for the elastic element 400 to deform. In this embodiment, elastic deformation can occur between the first elastic arm 431 and the first connecting arm 410, and between the second elastic arm 433 and the second connecting portion 220, reducing the deformation space requirement of the elastic element 400. Furthermore, compared to a traditional elastic element 400, in this embodiment, because the axis of the elastic spiral portion 432 is parallel to the axis of the rotating shaft 300, the deformation between the first connecting arm 410 and the first elastic arm 431, and between the second connecting portion 220 and the second elastic arm 433, is smaller, thereby reducing the risk of the second connecting arm 420 detaching from the second connecting portion 220.

[0055] Based on the above embodiments, in the elastic member 400, the two second connecting arms 420 are designed to be arranged opposite to each other. This means that the two second connecting arms 420 extend in opposite directions; specifically, the axes of the two second connecting arms 420 can form a symmetrical layout with an included angle of 180 degrees. In this case, the length of the second connecting arms 420 can be designed according to requirements, ensuring that the distance between the two ends of the two second connecting arms 420 is sufficiently long, thereby improving the stability of the cover 210 during rotation.

[0056] In some embodiments, such as Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the housing 110 has a receiving cavity 111 and a clearance opening 112 communicating with the receiving cavity 111; the cover 210 includes a cover body 211 and a rotating part 212 connected together, a rotating shaft 300 passes through the rotating part 212, and both ends of the rotating shaft 300 are connected to the housing 110, and a second connecting part 220 is connected to the rotating part 212; the first connecting part 120, the elastic member 400 and the second connecting part 220 are all located in the receiving cavity 111; when the earphone case is in the open state, part of the structure of the rotating part 212 is located in the receiving cavity 111; when the earphone case is in the closed state, the rotating part 212 is located at the clearance opening 112.

[0057] The receiving cavity 111 refers to the space inside the box body 110 used for the centralized installation of the first connecting part 120, the elastic element 400, and the second connecting part 220. Specifically, it can be achieved by injection molding to form a shell with a recessed structure. The clearance opening 112 refers to the opening structure opened in the side wall of the box body 110. Specifically, it can be formed by stamping or cutting processes, and is used to accommodate the rotating part 212 in the closed state, with the rotating part 212 blocking the receiving cavity 111. By concentrating the force transmission components in the sealed receiving cavity 111, external structures are prevented from interfering with the force state of the elastic element 400.

[0058] Among them, such as Figure 2 and Figure 4 As shown, the upper surface of the housing 110 forms a receiving groove for housing the earphone 500, and the interior of the housing 110 forms a mounting cavity for installing components such as batteries, allowing the earphone 500 to be charged when placed in the receiving groove. The cover 210, in the closed state, covers the opening side of the receiving groove, thus protecting the earphone 500 placed inside. In the open state, the housing 110 exposes the receiving groove, facilitating the placement or removal of the earphone 500 from the receiving groove.

[0059] In some embodiments, such as Figure 2 , Figure 4 and Figure 8 As shown, the cover body 211 and the rotating part 212 can be an integral structure, for example, they can be integrally injection molded. Compared with designing an independent hinge structure, the present application designs the rotating part 212 and the cover body 211 as an integral structure, which can simplify the assembly steps of the entire headphone box and reduce costs.

[0060] Metal sheets can be attached to the inner and outer surfaces of the rotating part 212 to improve the aesthetics and texture of the earphone case. Of course, in other embodiments, the inner and outer surfaces of the rotating part 212 can also be coated or textured by other processing techniques. This application does not limit this.

[0061] There is a certain distance between the second connecting part 220 and the rotating shaft 300. By setting the second connecting part 220 at the end of the rotating part 212 away from the cover body 211, the lever arm length is increased as much as possible in a limited space. Thus, when the force exerted by the elastic element 400 on the cover body 210 is the same in the open and closed states, the equivalent holding torque can be significantly improved, the cover body 210's ability to resist accidental interference is enhanced, and the risk of accidental opening is reduced.

[0062] The second connecting portion 220 is provided with a mounting hole 221, and the second connecting arm 420 is disposed in the corresponding mounting hole 221. When the elastic member 400 undergoes elastic deformation, the second connecting arm 420 can rotate or move axially within the mounting hole 221. To prevent the second connecting arm 420 from coming out, the second connecting arm 420 has an overlapping portion along the axial direction, so that when the elastic member 400 undergoes elastic deformation, the second connecting arm 420 is always kept within the mounting hole 221.

[0063] When the lid 210 is rotated to open the lid, the second connecting part 220 can be used to cooperate with the upper wall of the receiving cavity 111 to limit and determine the opening angle. When the second connecting part 220 abuts against the upper wall of the receiving cavity 111, the lid 210 reaches the open position. When the lid 210 is rotated to close the lid, the lower edge of the lid body 211 can be used to cooperate with the top of the box body 110 to limit the opening. When the lid body 211 abuts against the top surface of the box body 110, the lid 210 is closed in place.

[0064] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, the housing 110 includes a first housing 114 and a second housing 115, which are detachably connected. The top of the first housing 114 forms a receiving groove for placing the earphone 500, and the second housing 115 and the first housing 114 form an installation cavity.

[0065] In the first housing 114 and the second housing 115, one is provided with a snap-fit ​​structure, and the other is provided with a bayonet 11413. The first housing 114 and the second housing 115 are assembled in the vertical direction so that the snap-fit ​​structure snaps into the bayonet 11413 to achieve a detachable connection. Multiple snap-fit ​​structures can be arranged at intervals along the edges of the first housing 114 and the second housing 115 to form multiple snap-fit ​​points, thereby improving the stability of the connection between the first housing 114 and the second housing 115.

[0066] Based on the above embodiments, such as Figure 2 , Figure 3 and Figure 7 As shown, the box body 110 includes a support portion 113, which is disposed opposite to the clearance opening 112. The support portion 113 serves as a rigid support structure inside the box body 110, forming a fulcrum in front of the clearance opening 112. A first connecting portion 120 is disposed on the side of the support portion 113 facing the clearance opening 112. The first connecting portion 120 is provided with a mounting groove 121, and a first connecting arm 410 is disposed in the mounting groove 121. The mounting groove 121 serves to stop and limit the first connecting arm 410.

[0067] The groove opening of the mounting groove 121 is set facing the clearance opening 112. Depending on the position of the second connecting arm 420 in each state, it can be determined that the first connecting arm 410 is subjected to a force that is obliquely forward and upward or obliquely forward and downward. That is, the force acting on the first connecting arm 410 always has a component force opposite to the direction of the groove opening, thereby enabling the first connecting arm 410 to be stably confined within the mounting groove 121 and reducing the risk of detaching from the groove opening of the mounting groove 121.

[0068] Depending on how the mounting groove 121 is formed, the first connecting arm 410 can abut against the inner wall of the mounting groove 121, the support portion 113, or simultaneously abut against both the inner wall of the mounting groove 121 and the support portion 113. Specifically, when there is a certain gap between the front sidewall of the mounting groove 121 and the support portion 113, the first connecting arm 410 abuts against the front sidewall of the mounting groove 121; when the mounting groove 121 extends onto the support portion 113, the support portion 113 forms the front sidewall of the mounting groove 121, and the first connecting arm 410 abuts against both the support portion 113 and the front sidewall of the mounting groove 121; for example... Figure 7 As shown, the mounting groove 121 extends through the support portion 113 in the front-to-back direction, and the first connecting arm 410 abuts against the support portion 113.

[0069] The support portion 113 and the first housing 114 can be an integral structure formed by injection molding. To facilitate demolding, the distance between the upper and lower side walls of the mounting groove 121 decreases from front to back. At the same time, the above structure can also stop the rearward movement of the first connecting arm 410, further preventing the first connecting arm 410 from detaching from the mounting groove 121.

[0070] Based on the above embodiments, such as Figure 2 , Figure 3 , Figure 7 and Figure 9 As shown, the first housing 114 includes two first mounting portions 1141, which are located on both sides of the receiving cavity 111 along a first direction. Each first mounting portion 1141 has a first semi-groove 1142. The front ends of the two first mounting portions 1141 are connected to the support portion 113, and a clearance opening 112 is formed between the rear ends of the two first mounting portions 1141, meaning that the first mounting portions 1141 and the support portion 113 also form the receiving cavity 111. The second housing 115 includes two second mounting portions 1151, which have second semi-grooves 1152. The second semi-grooves 1152 and the corresponding first semi-grooves 1142 are joined to form shaft holes, and the two ends of the rotating shaft 300 are respectively disposed in the two shaft holes. By employing a design that combines the first half-groove 1142 and the second half-groove 1152, during the installation of the rotating shaft 300, the shaft 300 can be first passed through the rotating part 212, and both ends of the shaft 300 can be inserted into the first half-groove 1142 on both sides. Then, the first housing 114 and the second housing 115 are assembled so that the second half-groove 1152 aligns with the first half-groove 1142, providing full circumferential positioning of the rotating shaft 300. Therefore, the installation of the rotating shaft 300 does not require precise alignment; the shaft hole closure is automatically completed through the housing assembly, reducing the difficulty of installing the rotating shaft 300.

[0071] Furthermore, the first mounting portion 1141 has a mounting channel 11411 and a limiting groove 11412. The mounting channel 11411 forms an opening at one end of the first mounting portion 1141 facing the second housing 115. The inner wall of the mounting channel 11411 opposite to the opening forms a first semi-groove 1142. The limiting groove 11412 is located on one side of the mounting channel 11411 and communicates with the mounting channel 11411. The second mounting portion 1151 includes a supporting protrusion 11511 and a rib 11512. The top of the supporting protrusion 11511 forms a second semi-groove 1152. The supporting protrusion 11511 extends into the mounting channel 11411 from the opening so that the second semi-groove 1152 and the first semi-groove 1142 are joined to form a shaft hole. The rib 11512 is connected to one side of the supporting protrusion 11511 and the rib 11512 is limited to be located in the limiting groove 11412 along the first direction.

[0072] The installation channel 11411 is a guide structure used to guide the insertion of the support protrusion 11511. It can be implemented using a rectangular or U-shaped groove, with its opening direction aligned with the assembly direction of the second housing 115, facilitating rapid positioning of the support protrusion 11511. The limiting groove 11412 is a groove structure that forms a lateral constraint with the rib 11512. It can be implemented using a straight groove or stepped groove matching the width of the rib 11512, used to limit the displacement of the support protrusion 11511 in the direction perpendicular to the first direction. The support protrusion 11511 is a boss structure used to support the second half-groove 1152. It can be implemented using a columnar or block-shaped protrusion that fits with the inner wall of the installation channel 11411, with a semi-circular recess at the top forming the second half-groove 1152. The rib 11512 refers to the reinforcing structure connected to the side wall of the support protrusion 11511. Specifically, it can be implemented by a plate-shaped or strip-shaped protrusion integrally formed with the support protrusion 11511. Its thickness matches the depth of the limiting groove 11412 to ensure the lateral limiting effect.

[0073] During the assembly of the first housing 114 and the second housing 115, the support protrusion 11511 is inserted from the open end of the mounting channel 11411 until the second half-groove 1152 and the first half-groove 1142 are completely joined to form a complete shaft hole. At this time, the rib 11512 is simultaneously embedded in the limiting groove 11412, forming a fixed constraint along the first direction to prevent the support protrusion 11511 from shifting when subjected to lateral force. Through the guiding effect of the mounting channel 11411, the joining process of the support protrusion 11511 and the first half-groove 1142 can be automatically aligned without manual adjustment, ensuring the coaxiality of the shaft hole. The cooperation between the rib 11512 and the limiting groove 11412 further reduces the lateral movement clearance of the support protrusion 11511, preventing the shaft hole from failing to fit with the rotating shaft 300 due to loose housing connections when the rotating shaft 300 rotates.

[0074] The first mounting part 1141 can also serve as one of the snap-fit ​​connection points for connecting the first housing 114 and the second housing 115. Specifically, the first connecting part 120 has a snap-fit ​​11413, and the second housing 115 includes an elastic arm and a snap-fit ​​protrusion 1154. The snap-fit ​​protrusion 1154 is connected to one end of the elastic arm. The elastic arm refers to an elastic cantilever structure on the second housing 115, which can be integrally molded from plastic material. The snap-fit ​​protrusion 1154 can be reset through elastic deformation. The snap-fit ​​protrusion 1154 refers to the protruding structure formed at the end of the elastic arm. Specifically, it can be implemented using a trapezoidal block, a hemispherical boss, or a hook-shaped structure. The snap-fit ​​protrusion 1154 is used to embed into the latch 11413 to form a mechanical lock. That is, a snap-fit ​​connection is set near the joint of the first half-groove 1142 and the second half-groove 1152. The snap-fit ​​protrusion 1154 and the latch 11413 form a vertical limit, the rib 11512 and the limiting groove 11412 form a horizontal limit, and the support protrusion 11511 and the installation channel 11411 form a front-back limit. This improves the connection stability at the joint of the first half-groove 1142 and the second half-groove 1152, avoids the force exerted by the rotating shaft 300 on the first shell 114 and the second shell 115 during the opening and closing of the cover, which would cause a gap between the first half-groove 1142 and the second half-groove 1152, and improves the smoothness of the rotation of the cover 210.

[0075] When the first housing 114 and the second housing 115 are assembled, the elastic arm is compressed and undergoes elastic deformation, causing the locking protrusion 1154 to slide along the edge of the bayonet 11413 until it is embedded inside the bayonet 11413. After the locking protrusion 1154 contacts the inner wall of the bayonet 11413, the elastic restoring force of the elastic arm forces the locking protrusion 1154 to form an interference fit with the bayonet 11413, thereby limiting the relative displacement between the first housing 114 and the second housing 115. This process does not require external tools or fasteners; the mechanical locking between the housings is achieved solely through the deformation and reset of the elastic arm.

[0076] This application also proposes a second embodiment, such as... Figure 10As shown, the difference between the second embodiment and the first embodiment is that the housing 110 is provided with a first magnetic element 130, and the cover 210 is provided with a second magnetic element 230. When the earphone case is closed, the second magnetic element 230 and the first magnetic element 130 are magnetically attracted to each other. When the cover is closed, the cover 210 moves the second magnetic element 230 to a spatial position corresponding to the first magnetic element 130 inside the housing 110, and the opposite poles of the two magnetic elements generate a magnetic attraction force. That is, when the cover is closed, the magnetic attraction force and the elastic force are superimposed to form a dual fixing mechanism. The magnetic attraction force provides vertical constraint, and the elastic force maintains radial damping of the pivot 300. The two work together to improve the closing stability. This makes the cover 210 contact the housing 110 more tightly when closed, preventing the housing 110 and the cover 210 from being opened unexpectedly due to external vibration or accidental contact when closed.

[0077] In the first magnetic component 130 and the second magnetic component 230, one may be a magnet and the other may be an iron sheet; alternatively, both may be magnets, with the earphone case in a closed state, and the polarity of the bottom of the first magnetic component 130 being opposite to the polarity of the top of the second magnetic component 230. This application does not limit this.

[0078] The number of the first magnetic element 130 can be one, two, three, or even more, and this application does not limit this. The first magnetic element 130 can be spaced along the edge of the first housing 114. The number of the second magnetic element 230 is the same as the number of the first magnetic element 130, and the position of the second magnetic element 230 corresponds to the position of the first magnetic element 130. Specifically, when the earphone case is in the closed state, the first magnetic element 130 and the second magnetic element 230 are aligned in the vertical direction.

[0079] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. An earphone case, characterized in that, include: The housing assembly includes a connected housing and a first connecting portion. The case lid assembly includes a lid body and two second connecting parts. The lid body is rotatably connected to the case body via a pivot to allow the earphone case to switch between an open state and a closed state. The two second connecting parts are connected to the lid body and are spaced apart along a first direction, which is parallel to the axial direction of the pivot. An elastic element includes a first connecting arm, two second connecting arms, and two elastic structures. The two elastic structures are respectively connected to the two ends of the first connecting arm. The two first connecting arms are respectively connected to the two elastic structures. The first connecting arm is connected to the first connecting part. The two second connecting arms are respectively connected to the two second connecting parts. Wherein, the axial direction of the first connecting arm and the axial direction of the second connecting arm are both set along the first direction, and along the first direction, the first connecting arm is located between the two second connecting arms.

2. The earphone case according to claim 1, wherein, The elastic structure includes a first elastic arm, an elastic spiral portion, and a second elastic arm connected in sequence. The first elastic arm is connected to the first connecting arm, and the second elastic arm is connected to the corresponding second connecting arm. The central axis of the elastic spiral portion is parallel to the axial direction of the rotating shaft.

3. The earphone case according to claim 1, wherein, The second connecting portion is provided with a mounting hole, and the second connecting arm is disposed in the corresponding mounting hole; and / or, The two second connecting arms are positioned opposite each other.

4. The earphone case according to claim 1, wherein, The box body has a receiving cavity and a clearance opening communicating with the receiving cavity; the cover body includes a cover body and a rotating part connected together, the rotating shaft passes through the rotating part and both ends of the rotating shaft are connected to the box body, and the second connecting part is connected to the rotating part; the first connecting part, the elastic element and the second connecting part are all located inside the receiving cavity; When the earphone case is in the open state, a portion of the rotating part is located within the receiving cavity; When the earphone case is in the closed state, the rotating part is located at the clearance opening.

5. The earphone case according to claim 4, characterized in that, The box body includes a support portion, which is disposed opposite to the clearance opening. The first connecting portion is disposed on the side of the support portion facing the clearance opening. The first connecting portion is provided with a mounting groove, and the first connecting arm is disposed in the mounting groove, and the first connecting arm abuts against the inner wall of the mounting groove and / or the support portion.

6. The earphone case according to claim 4, characterized in that, The box includes a first shell and a second shell, the first shell and the second shell are detachably connected, and the first shell forms the receiving cavity.

7. The earphone case according to claim 6, characterized in that, The first housing includes two first mounting portions located on both sides of the receiving cavity along a first direction, and each first mounting portion has a first semi-groove. The second housing includes two second mounting portions, each with a second half-groove; the second half-groove and the corresponding first half-groove are joined to form a shaft hole, and the two ends of the rotating shaft are respectively disposed in the two shaft holes.

8. The earphone case according to claim 7, characterized in that, The first mounting part has a mounting channel and a limiting groove. The mounting channel has an opening at one end of the first mounting part facing the second housing. The inner wall of the mounting channel and the opening form the first semi-groove. The limiting groove is located on one side of the mounting channel and communicates with the mounting channel. The second mounting portion includes a support protrusion and a rib. The top of the support protrusion forms a second semi-groove. The support protrusion extends into the mounting channel from the opening so that the second semi-groove and the first semi-groove fit together to form the shaft hole. The rib is connected to one side of the support protrusion and is limited to the limiting groove along the first direction.

9. The earphone case according to claim 7, characterized in that, The first mounting part has a bayonet, and the second housing includes an elastic arm and a snap-fit ​​protrusion. The snap-fit ​​protrusion is connected to one end of the elastic arm and snaps into the bayonet to connect the first housing and the second housing.

10. The earphone case according to any one of claims 1 to 9, characterized in that, The box body is provided with a first magnetic element, and the cover body is provided with a second magnetic element; When the earphone case is in the closed state, the second magnetic component and the first magnetic component are magnetically attracted to each other.

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