Box body, earphone box and earphone

By designing the inward grooves in the opening and closing area of ​​the box, the problem of existing box requiring fingers and visual assistance when opening is solved, achieving more convenient one-handed operation and visually dependent opening and closing effect.

CN223024558UActive Publication Date: 2025-06-24纳欣科技有限公司
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Patent Information

Application Number
CN202422064181.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-06-24
Estimated Expiration
2034-08-23

AI Technical Summary

Technical Problem

When opening, the existing box requires the user's finger to be placed in the groove in the middle area, and requires visual assisted positioning, resulting in inconvenient one-handed operation and visual-independent opening and closing operation.

Method used

A box body is designed, wherein the first housing and the second housing are connected by a rotating shaft to form an opening and closing area. In the opening and closing area, the outer surfaces of the first housing and the second housing are retracted to form a groove, allowing the user to place his fingers in any position of the groove to open the box.

Benefits of technology

By expanding the groove area, users can open the box more conveniently, making it easier to operate, suitable for one-handed or vision-free opening and closing needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a box body, an earphone box and an earphone. The first shell and the second shell are rotationally connected through a rotating shaft arranged on the first side edge; when the first shell body and the second shell body are in a covering state, the end part of the first shell body and the end part of the second shell body abut against each other and form a joint surface, and an inner area defined by the first shell body and the second shell body forms a containing cavity; on a second side edge opposite to the first side edge, the first shell and the second shell form an opening and closing area; and in the opening and closing area, the outer surface of the first shell and the outer surface of the second shell are both inwards retracted towards the joint surface to jointly form a groove. According to the box body, due to the fact that the area occupied by the groove is large, fingers of a user can be conveniently located in the area where the groove is located, the box body can be opened more conveniently, and the use experience of the user is improved.
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Description

Technical Field

[0001] This disclosure generally relates to the technical field of electronic devices. More specifically, this disclosure relates to a box body, and further to a headphone case, and further to a headphone. Background Art

[0002] With the development of society, users often carry box bodies, such as glasses cases, cosmetic cases, cosmetic mirrors, headphone cases, etc. When the user opens the box, due to the pre-tightening force between the upper and lower covers of the box body, it is often necessary to set an opening structure at the joint of the upper and lower covers. The opening structure is generally very small. When opening, the user's finger needs to be placed in the groove in the middle area to facilitate opening and closing, and visual assistance is often required for positioning, which is not convenient for one-handed operation and opening and closing operations without relying on vision.

[0003] In view of this, there is an urgent need to provide a new solution so that users can open the box body more conveniently. Summary of the Utility Model

[0004] In order to solve at least one or more of the above-mentioned technical problems, this disclosure proposes a box body, a headphone case, and a headphone in multiple aspects.

[0005] In a first aspect, this disclosure provides a box body. The first housing and the second housing are rotatably connected through a rotating shaft provided on the first side; when they are in a closed state, the end of the first housing abuts against the end of the second housing to form a joint surface, and the internal area surrounded by the first housing and the second housing forms a receiving cavity; on the second side opposite to the first side, the first housing and the second housing form an opening and closing area; in the opening and closing area, the outer surfaces of the first housing and the second housing both converge towards the joint surface, jointly forming a groove.

[0006] In some embodiments, the area where the groove is located is an opening and closing part, and the opening and closing part is the area between the farthest points where the end parts of the first housing and the second housing extend along the outer surface of the groove away from the receiving cavity; the tangent at any position in the opening and closing part or the line connecting any position in the opening and closing part and the end part forms an angle with the joint surface that is less than or equal to 90°.

[0007] In some embodiments, the outer side walls of the first housing and the second housing in the opening and closing area are arc-shaped, and are respectively arc-transitionally connected to the outer top surfaces of the first housing and the second housing; the groove is formed by splicing two arc surfaces of the side walls of the first housing and the second housing that are adjacent to each other; the outer surface contours of the first housing and the second housing are mirror-symmetrical along the end part on the side.

[0008] In some embodiments, the inner surface of the sidewall of the first housing is a closed or unclosed smooth annular cylindrical surface; or the inner side surface of the inner wall of the first housing is a closed or unclosed smooth annular inclined surface, the inclined surface extends obliquely from the end to the top surface of the first housing, and the included angle between the inclined surface and the joint surface is an acute angle; or the inner surface of the sidewall of the first housing is a closed or unclosed smooth curved surface, and the curvature of the curved surface is the same as that of the outer surface.

[0009] In some embodiments, the vertical distance between the region of the outer surface of the sidewall of the first housing farthest from the accommodation cavity and the plane of the joint surface is 3-5 mm, and the radius of the arc is 5-6 mm.

[0010] In some embodiments, the first housing is a transparent housing or a translucent housing, and a plano-convex lens is formed on the outer surface and the inner surface of the sidewall.

[0011] In some embodiments, the box body is used for storing an electronic device; a plurality of limiting portions are arranged on the inner surfaces of the first housing and the second housing, and the plurality of limiting portions constitute a limiting system for the electronic device.

[0012] In some embodiments, the outer surface of the side of the rotating shaft is different in shape or surface material from the outer surface of the opening and closing area.

[0013] In some embodiments, the box body further includes a third side and a fourth side arranged at two ends, wherein both the third side and the fourth side are adjacent to the second side; the opening and closing area extends from the second side to the third side and / or the fourth side.

[0014] In a second aspect, the present disclosure provides a headphone box. The headphone box includes the above-mentioned box body, and the box body is used for accommodating headphones.

[0015] In a third aspect, the present disclosure provides a headphone. The headphone is placed in the above-mentioned headphone box.

[0016] In some embodiments, the headphone includes a body portion, an ear hook, and a battery portion connected in sequence; the headphone includes a first headphone and a second headphone, and the first headphone and the second headphone extend along the direction of the joint surface of the headphone box and are placed in the headphone box without overlapping.

[0017] Through the box body provided as above, in the embodiment of the present disclosure, at the position of the second side of the box body, the first housing and the second housing form an opening and closing area, and at the position of the opening and closing area, the outer surfaces of the first housing and the second housing jointly form a groove. The groove of the present disclosure occupies a relatively large area, and the user can open the box body by placing a finger at any position of the groove. Description of the Drawings

[0018] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present disclosure will become readily understandable. In the drawings, several embodiments of the present disclosure are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0019] Figure 1 A schematic structural view of the cartridge body of the embodiment of the present disclosure is shown;

[0020] Figure 2 A left view of the cartridge body of the embodiment of the present disclosure is shown;

[0021] Figure 3 A right view of the cartridge body of the embodiment of the present disclosure is shown;

[0022] Figure 4 A schematic view of the embodiment of the present disclosure when the inner side wall of the first housing is a smooth inclined surface is shown;

[0023] Figure 5 A top view of the cartridge body of the embodiment of the present disclosure is shown;

[0024] Figure 6 A schematic structural view of the inner surface of the first housing of the cartridge body of the embodiment of the present disclosure is shown;

[0025] Figure 7 A schematic view of the inner surface of the second housing of the cartridge body as a headphone case of the embodiment of the present disclosure is shown;

[0026] Figure 8 A cross-sectional view of the headphone case of the embodiment of the present disclosure is shown;

[0027] Figure 9 A schematic view of the human ear structure is shown;

[0028] Figure 10 A front view of the headphone of the present disclosure worn on the human ear is shown;

[0029] Figure 11 A side view of the headphone of the present disclosure worn on the human ear is shown;

[0030] Figure 12 A bottom view of the headphone of the embodiment of the present disclosure;

[0031] Figure 13 A front view of the headphone of the embodiment of the present disclosure is shown;

[0032] Figure 14 A rear view of the headphone of the embodiment of the present disclosure is shown;

[0033] Figure 15 A top view of the headphone of the embodiment of the present disclosure is shown;

[0034] Figure 16 Shows a perspective view of the earphone of an embodiment of the present disclosure. Specific implementation

[0035] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0036] It should be understood that the terms "including" and "comprising" used in the specification and claims of the present disclosure indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0037] It should also be understood that the terms used in the present disclosure specification are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. As used in the present disclosure specification and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms. It should also be further understood that the term "and / or" used in the present disclosure specification and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0038] As used in this specification and claims, the term "if" may be interpreted as "when...", "once", "in response to determining" or "in response to detecting" according to the context. Similarly, the phrase "if determined" or "if [the described condition or event] is detected" may be interpreted as meaning "once determined", "in response to determining", "once [the described condition or event] is detected" or "in response to detecting [the described condition or event]" according to the context.

[0039] Next, the specific implementation of the present disclosure will be described in detail in conjunction with the accompanying drawings.

[0040] The present disclosure provides a box body, which includes a first housing 101 and a second housing 102. The first housing 101 and the second housing 102 are rotatably connected by a rotating shaft provided on the first side. On the second side opposite to the first side, the first housing 101 and the second housing 102 form an opening and closing area; in the opening and closing area, the outer surfaces of the first housing 101 and the second housing 102 both converge towards the joint surface, jointly forming a groove 103. In the box body provided by the present disclosure, the area occupied by the groove 103 is relatively large, so that it is more convenient for users to open the box body.

[0041] As Figure 1 As shown in the schematic diagram of the earphone box, the box body provided by the present disclosure includes a first housing 101 and a second housing 102. Both the first housing 101 and the second housing 102 are of an open structure, and the ends at the open ends thereof are abutted to form a joint surface, and an accommodation cavity is formed in the internal area. Specifically, the box body of the present disclosure has a certain extension length. The first housing 101 and the second housing 102 are rotatably connected by a rotating shaft provided on the first side in the extension length direction. The first housing 101 and the second housing 102 at the position of the second side opposite to the first side form an opening and closing area, and in the opening and closing area, the first housing 101 rotates along the rotating shaft to open or close the box body.

[0042] In the solution of the present disclosure, the side where the opening and closing area is located is the main viewing area, the side where the rotating shaft is located is the rear viewing area, and the two end portions on the left and right of the earphone box are the left viewing area and the right viewing area respectively.

[0043] In the solution of the present disclosure, on the outer surfaces of the first housing 101 and the second housing 102 at the opening and closing area, both converge towards the joint surface, thereby forming a groove 103. In addition, buckles are provided on the first housing 101 and the second housing 102 at the opening and closing area. When the first housing 101 and the second housing 102 are in the closed state, the buckles cooperate to lock the two.

[0044] In this solution, the first housing 101 and the second housing 102 have a certain thickness. The outer surfaces of the first housing 101 and the second housing 102 at the opening and closing area converge towards the joint surface, that is, the thickness of the first housing 101 and the second housing 102 at the opening and closing area gradually becomes thinner, thereby forming a groove. Of course, in other solutions, the thickness of the first housing 101 and the second housing 102 at the opening and closing area does not change, and only the extension direction is changed, that is, they extend towards the accommodation cavity direction beyond the side wall, thereby forming a groove 103.

[0045] During use, when closing the box body, rotate the first housing 101 or the second housing 102 along the rotating shaft to cover the two together, and then lock them together through the cooperation of the buckle structure. When opening the box body, it is only necessary to place the hand at the groove 103 and apply a force in the direction away from the second housing 102 to the first housing 101 to open the buckle, and then rotate the first housing 101 along the rotating shaft in the direction away from the second housing 102 to open the box body.

[0046] For the box body provided by the present disclosure, the groove 103 is arranged in the opening and closing area, and the opening and closing area substantially refers to the side wall on the opposite side of the rotating shaft. Also, since the box body of the present disclosure has a certain extension length, the extension length of the groove 103 is also relatively long. Therefore, when the user is using it, the hand can be placed in any area of the groove 103 to open the box body, and the operation is more convenient.

[0047] In the solution provided by the present disclosure, the area where the groove is located is the opening and closing part, and the opening and closing part is the area between the outermost ends where the end parts of the first housing 101 and the second housing 102 extend along the outer surface of the groove in the direction away from the accommodation cavity; the tangent at any position of the opening and closing part or the connection line between any position of the opening and closing part and the end part forms an angle less than or equal to 90° with the joint surface.

[0048] As Figure 2 and Figure 3 shown in the left view and right view of the earphone box, in a specific implementation, there is an opening and closing part at the opening and closing area, and the opening and closing part refers to the area where the groove is located, that is Figure 2 the area marked by the dashed line box in the figure. Specifically, the opening and closing part refers to the area between the outermost ends where the end part of the first housing 101 extends along the outer surface of the side wall of the first housing 101 in the direction away from the accommodation cavity, and the area between the outermost ends where the end part of the second housing 102 extends along the outer surface of the side wall of the second housing 102 in the direction away from the accommodation cavity. In this solution, the side walls of the first housing 101 and the second housing 102 at the position of the opening and closing part are inclined surfaces or curved surfaces. When the side wall at the position of the opening and closing part is an inclined surface, the angle between the inclined surface and the extension line of the joint surface in the direction away from the accommodation cavity is less than or equal to 90°.

[0049] When the side wall at the position of the opening and closing part is a curved surface, the tangent at any position of the curved surface or the connection line between any position of the curved surface and the end part forms an angle α with the extension line of the joint surface in the direction away from the accommodation cavity, and α is less than or equal to 90°. In this solution, the angle between the tangent at the extreme value of the outer surface of the side wall and the joint surface is 90°, and the angles between the tangents at other positions and the extension line of the joint surface in the direction away from the accommodation cavity are all less than 90°.

[0050] In the solution provided by the present disclosure, the outer surface of the side wall of the first shell 101 and the second shell 102 at the opening and closing area is arc-shaped, and is transitionally connected with the outer top surface of the first shell 101 and the second shell 102 respectively; the groove is formed by splicing two sections of arc surfaces of the adjacent side walls of the first shell and the second shell; the outer surface contours of the first shell and the second shell are mirror-symmetrical at the end of the side edge. The inner surface of the top wall of the first shell is parallel to the joint surface, and the inner surface of the side wall is perpendicular to the inner surface of the top wall. The vertical distance between the outer surface of the side wall of the first shell 101, the area farthest from the accommodating cavity and the plane where the joint surface is located, is 3-5mm, and the radius of the arc is 5-6mm.

[0051] In the above scheme, the outer surfaces of the first shell 101 and the second shell 102 are symmetrically arranged at the ends of the side edges, and the outer surface of the side wall at the opening and closing area is arc-shaped. The groove is formed by splicing two arc surfaces of the side wall of the first shell and the side wall of the second shell, and the outer surface of the arc-shaped side wall extends toward the accommodating cavity, and the vertical distance between the highest point of the outer surface of the arc and the plane where the joint surface is located is 3-5mm, and the radius of the arc is 5-6mm.

[0052] In a specific embodiment, the vertical distance between the highest point of the arc-shaped outer surface of the upper shell side wall and the plane where the joint surface is located is 4 mm, and the radius of the arc is 5.3 mm. Of course, in other embodiments, the vertical distance between the highest point of the arc-shaped outer surface of the upper shell side wall and the plane where the joint surface is located is any value between 3-5 mm, and the radius of the arc is any value between 5-6 mm. The depth of the groove at the opening and closing area is 1.5-3 mm, for example, 1.8 mm. In this solution, the depth of the groove refers to the depth of the arc surface retracted at the joint surface.

[0053] In the scheme disclosed in the present invention, the arc-shaped peripheral walls of the upper shell and the lower shell are set to the data recorded above, so that the curved surface of the earphone box is more beautiful. In addition, the depth of the groove at the opening and closing area is more suitable for the user's fingers to enter, and pressure is applied to the upper shell and the lower shell during the insertion process, making it convenient to open the earphone box with one hand.

[0054] In this scheme, the inner surface of the top wall of the first shell 101 and the second shell 102 is a plane at least at the connection with the side wall in the opening and closing area, the plane is parallel to the joint surface, and the outer surface of the top wall is connected to the outer surface of the side wall by an arc transition, and the inner surface of the top wall is perpendicular to the inner surface of the side wall and the two are connected by an arc transition.

[0055] In this solution, since the inner surface of the top wall is horizontally arranged and the inner surface of the side wall is arranged perpendicular to the inner surface of the top wall, that is, the inner surface of the side wall is vertically arranged. This arrangement is better for demolding during actual production and can improve production efficiency. In addition, the groove 103 is formed by the outer surfaces of the first housing 101 and the second housing 102, and it is distributed in the opening and closing area of the box body, enabling users to more easily locate at the groove 103 and making it possible for users to open the box body with one hand. This solution can improve the user experience.

[0056] In another specific implementation, the box body further includes a third side and a fourth side arranged at both ends, and the opening and closing area extends from the second side to the third side and the fourth side. That is to say, in this implementation, except for the side wall on the side where the rotating shaft is located, which is not arc-shaped, the other three peripheral walls are all arc-shaped, that is, the second side, the third side, and the fourth side are all in the opening and closing area, and users can also open the box body in the opening and closing areas of the third side and the fourth side. Based on the above content, those skilled in the art can understand that the opening and closing area can also be arranged on the second side and the third side, or on the second side and the fourth side.

[0057] In another specific implementation, as Figure 1 and Figure 2 shown, the outer surfaces of the first housing 101 and the second housing 102 are symmetrically arranged along the ends of the sides, and the outer surfaces of the first housing 101 and the second housing 102 are both arc-shaped. That is to say, in this solution, the outer surfaces of the peripheral walls of the first housing 101 and the second housing 102 are symmetrically arranged arc-shaped. Such an arrangement not only enables the two housings to form a groove 103 in the opening and closing area, but also grooves 103 can be formed at the positions where the four peripheral walls of the first housing 101 and the second housing 102 abut.

[0058] In the above solution, the first housing is a transparent or semi-transparent housing, and the outer surfaces of the first housing and the second housing are symmetrically arranged, that is, the outer surface contours of the first housing and the second housing are mirror-symmetric along the ends of the sides. In addition, all the connections between the side walls and the top wall of the outer surface of the disclosed box body are smooth arcs, that is, there are no sharp corners on the outer surface of the box body, and the connections between the side walls and between the side walls and the top wall are all arc-shaped. This can facilitate the placement of the box body in a narrow space such as the pocket of clothes. When the box body is placed in the pocket, the arc transition of the box body makes the part of the pocket in contact with the box body not have obvious edges, and the pocket will support a trapezoid-like shape (such as Figure 3 the trapezoid shown by the dotted line frame in

[0059] In addition, such a setting can prevent the edges of the outer surface of the box body from colliding with other items when the box body and other items are placed together in the storage device, thus avoiding damage to the outer surface of the box body.

[0060] In the solution disclosed herein, the box body is formed by injection molding or other methods, and this manufacturing method can reduce stress concentration at the outer edge of the box body.

[0061] In another specific embodiment, except that the side wall of the first side where the rotating shaft is located has no groove 103, the opening and closing area and the side parts of the two ends connected to the opening and closing area both have grooves 103. Through this setting method, users can more quickly locate the opening and closing area through touch, so as to more quickly open or close the box body.

[0062] In the solution provided in this disclosure, the inner surface of the side wall of the first housing 101 is a closed or unclosed smooth annular cylindrical surface; or the inner side surface of the inner wall of the first housing 101 is a closed or unclosed smooth annular inclined surface, the inclined surface extends obliquely from the end to the top surface of the first housing, and the included angle between the inclined surface and the joint surface is an acute angle; or the inner surface of the side wall of the first housing 101 is a closed or unclosed smooth curved surface, and the curvature of the curved surface is the same as that of the outer surface.

[0063] In a specific embodiment, the outer surface of the side wall of the first housing 101 is arc-shaped, the inner surface of the side wall is vertically arranged, and the inner surface of the side wall is perpendicular to the inner surface of the top wall of the first housing 101, and the connection between the two is an arc-shaped transition connection. In this solution, the first housing 101 has four side walls, and the connections of the inner surfaces of each side wall are arc-shaped transition connections. When the inner surface of the side wall does not need to avoid the rotating shaft, the inner surfaces of the four side walls of the first housing 101 form a smooth closed annular cylindrical surface. When the inner surface of the side wall needs to avoid the rotating shaft, at this time, the inner surfaces of the four side walls form an unclosed annular cylindrical surface.

[0064] In the above solution, the first housing 101 of the box body is set as a transparent housing or a translucent housing, so that users can observe the state of the objects placed in the accommodation cavity through the first housing 101 without opening the ear box body. Also, because the outer surface of the side wall of the first housing 101 is arc-shaped, this setting method increases the thickness of the box body, makes the first housing 101 stronger, can withstand greater pressure from the top surface or side surface of the housing, and also improves the anti-drop performance.

[0065] On the basis that the outer surface of the side wall of the first housing 101 is arc-shaped and the inner surface is vertically arranged, the outer surface and the inner surface of the side wall form a plano-convex lens, which can magnify the items placed in the box body and present a more special visual effect to users. In addition, when the side walls of the first side and the second side both form plano-convex lenses, a complex visual effect can be formed.

[0066] As Figure 4 As shown in the schematic diagram when the inner surface of the first housing is an inclined surface, in another specific embodiment, the inner surface of the side wall of the first housing 101 is not vertically arranged, but is inclined. Specifically, the inner surface of the first housing 101 extends from the end at its opening obliquely away from the central axis of the accommodation cavity to the top surface of the first housing 101, and the angle between this inclined surface and the extension line of the joint surface in the direction away from the accommodation cavity is β, and this β is an acute angle. Of course, in this solution, the inner surfaces between the side walls and the inner surfaces between the side walls and the inner surface of the top wall are also arc-transition-connected. When the inner surface of the side wall does not need to avoid the rotating shaft, the four inner surfaces of the side walls of the first housing 101 form a smooth closed annular inclined surface. When the inner surface of the side wall needs to avoid the rotating shaft, at this time, the four inner surfaces of the side walls form an unclosed annular inclined surface. It should be noted that Figure 4 This is only a schematic diagram to illustrate the situation where the inner surface of the side wall of the first housing 101 is inclined.

[0067] In another specific embodiment, the inner surface of the side wall of the first housing 101 is neither vertically arranged nor inclined, but is arc-shaped, and the curvature of this arc is the same as the curvature of the outer surface of the side wall. That is to say, in this solution, the inner surface and the outer surface of the side wall of the first housing have the same shape, and the bending directions of the arcs are also the same. Therefore, when the inner surface of the side wall does not need to avoid the rotating shaft, the four inner surfaces of the side walls of the first housing 101 form a smooth closed annular curved surface. When the inner surface of the side wall needs to avoid the rotating shaft, at this time, the four inner surfaces of the side walls form an unclosed annular curved surface.

[0068] In the solution of this disclosure, in order to enable the user to distinguish the first side and the second side only through touch, grooves can be provided only on the second side where the opening and closing area is located, and no grooves are provided on the first side where the rotating shaft is located. When grooves are provided on both the first side and the second side, during production, different materials can be used for the outer surface at the opening and closing area and the outer surface on the rotating shaft side. Or the outer surfaces at the opening and closing area and on the rotating shaft side can be made into different shapes.

[0069] The box body in this solution can be used to store electronic devices such as earphones and smart watches. In order to better limit the electronic device in the accommodation cavity, a plurality of limiting parts are provided on the inner surfaces of the first housing 101 and the second housing 102, and the plurality of limiting parts constitute a limiting system for the electronic device.

[0070] The cassette provided by this disclosure has the groove 103 not only set in the middle area of the housing abutment at the second side like a traditional cassette, but set in all areas of the housing abutment at the second side. This increases the area occupied on the cassette, enabling the user to open the cassette by applying force at different positions, making the operation more convenient.

[0071] In some embodiments, a headphone cassette is further provided. The headphone cassette includes the cassette in the above solution. The headphones are placed in the cassette, and the limiting system in the cassette limits the headphones to prevent the headphones from moving in the headphone cassette and affecting the charging of the headphones.

[0072] To facilitate understanding of how the limiting system in this disclosure limits the headphones, the limiting system will be introduced in detail next.

[0073] As Figure 6 and 7 As shown in the schematic diagrams of the first housing and the second housing of the headphone cassette, the limiting system includes a first limiting portion 1011 and a second limiting portion 1012 provided on the first housing, and a mounting groove provided on the second housing. Specifically, the mounting groove includes a body portion groove for accommodating the headphone body, an earhook groove 1023 for accommodating the earhook, and a battery portion groove 1024 for accommodating the battery portion, which are connected in sequence. The body portion groove also includes a sounding portion groove 1021 and a connecting member groove 1022 that are connected in sequence, and the connecting member groove 1022 is connected to one end of the earhook groove.

[0074] The mounting groove in this disclosure includes a first mounting groove and a second mounting groove symmetrically arranged along a first axis, where the first axis is the perpendicular bisector of the two ends of the headphone cassette 100 in its length direction. Next, the first mounting groove on the left side will be taken as an example for introduction. The body portion groove is set in the middle area and extends obliquely towards the second side position in the area close to the left end. Its extending end is connected to the earhook groove 1023. The earhook groove 1023 first extends from the second side towards the first side, and then extends obliquely towards the position on the first axis close to the first side. Its extending end is connected to the battery portion groove 1024, and the battery portion groove 1024 continues to extend towards the position on the first axis close to the first side. Similarly, the second mounting groove is symmetrically arranged with the first mounting groove along the first axis. The difference between it and the first mounting groove is that the body portion groove of the second mounting groove extends towards the right side, and the rest of the extending directions are the same. It should be noted that the extending trajectories of the body portion groove and the battery portion groove 1024 are linear, and the extending trajectory of the earhook groove 1023 is arc-shaped.

[0075] In the solution disclosed herein, the earphone case has two independent cavities symmetrically arranged along the first axis of symmetry, and the first mounting groove and the second mounting groove are respectively located in the two independent cavities. Also, based on the arrangement form of the mounting grooves in this solution, when the user uses it, the opening and closing part of the earphone case faces the human body, and the rotating shaft is on the side away from the human body. At this time, the first mounting groove on the left corresponds to the left hand side of the user, and the second mounting groove on the right corresponds to the right hand side of the user. The left earphone is placed in the first mounting groove, and the right earphone is placed in the second mounting groove.

[0076] When the user wears the earphone with either hand, the user pinches the main body part to take out the earphone from the earphone case, and then moves the sound-emitting part towards the direction of the human ear. When it moves to the position of the human ear, after hanging the earhook above the human ear, fix the sound-emitting part of the earphone in the concha, and then press down the wrist or lift the elbow to tilt the connecting part of the earphone through the area between the helix and the tragus of the human ear to complete the wearing. Therefore, in the solution disclosed herein, on the basis of setting the battery part groove close to the first axis and setting the main body part groove farther from the first axis relative to the battery part groove, the earhook is also set close to the rotating shaft side, and the main body part is set close to the opening and closing part side, so that the earphone does not need to change hands during the wearing process, nor does it need to take out the earphone and use the other hand to assist in adjusting the direction before wearing. This solution can be completed with one hand. In addition, in this solution, the direction that the sound-emitting part of the earphone faces is always the same as the direction that the palm faces, and the left side corresponds to the left ear and the right side corresponds to the right ear, making it convenient to pick up and place, and facilitating the user to wear the earphone with one hand.

[0077] In the solution disclosed herein, the main body part includes a sound-emitting part and a connecting part. When the earphone is placed in the earphone case, the connecting part is located above the sound-emitting part, and the connecting part is a square structure. Compared with the cylindrical structure of the battery part, this structure is easier to grasp. When the user grasps the earphone, it guides the user to position the hand at the connecting part, and then forms a fixed way of taking by grasping the side wall of the connecting part when taking the earphone out of the earphone case.

[0078] In the solution disclosed herein, based on the arrangement form of the mounting grooves, when the user uses it, the first mounting groove on the left corresponds to the left hand side of the user, and the second mounting groove on the right corresponds to the right hand side of the user. When the user wears the earphone, if wearing the left earphone, just take the main body part with the left hand and then place the sound-emitting part in the concha, and hang the earhook above the human ear to complete the wearing. Similarly, when wearing the right earphone, just operate with the right hand.

[0079] In addition, the earphone in this disclosure is not a planar structure in its thickness direction. To better limit the position of the earphone, the depths of various parts of the installation groove are not the same. Specifically, the depth of the middle area of the earhook groove is greater than the depth of the sound generating part groove 1021, the depth of the sound generating part groove 1021 is greater than the depth of the connecting part groove 1022. The depth of the area of the earhook groove close to the connecting part groove 1022 is greater than the depth of the connecting part groove 1022, and the depth of the area of the earhook groove close to the battery part groove is less than the depth of the battery part groove. In this solution, the thickness direction of the earphone body refers to the direction of approaching or moving away from the human ear when the earphone is in a worn state.

[0080] To facilitate the understanding of the solution of this disclosure, the reasons for the different depths of the installation groove are introduced in detail below. The earphone in this disclosure is an open earphone. When in use, the user fixes the earphone 200 on the human ear through the earhook, and the human ear usually protrudes obliquely outward relative to the side of the head, forming an angle with the head. In order to better fit the human ear in this solution, the earhook is inclined relative to the earphone body. That is to say, the earhook has an inclination relative to the thickness direction of the earphone body, and this inclination tends to be the same as the angle formed between the human ear and the head. And in order to better place the earhook in the earhook groove, the depth of the middle area of the earhook groove is set to be the deepest.

[0081] Since the earphone body part includes a sound generating part and a connecting part, the lower surface of the sound generating part close to the ear canal protrudes from the lower surface of the connecting part close to the ear canal, so the depth of the sound generating part groove 1021 for accommodating the sound generating part is greater than the depth of the connecting part groove 1022 for accommodating the connecting part.

[0082] Also, since one end of the earhook is connected to the connecting part and the other end is connected to the battery part. When the earphone is in a worn state, the end of the earhook connected to the connecting part is located in the area of the human ear close to the face, so the earhook at this position extends obliquely towards the lower surface of the earphone body, and the middle area extends obliquely towards the upper surface of the earphone body, and its extending end is connected to the battery part. And the upper end of the battery part away from the ear canal direction is slightly lower than the upper end of the connecting part or almost flush with the upper end of the connecting part. Therefore, the depth of the battery part groove is slightly less than the depth of the sound generating part groove 1021 or the same as the depth of the sound generating part groove 1021. The depth of the area of the earhook groove close to the connecting part groove 1022 is greater than the depth of the connecting part groove 1022, and the depth of the earhook groove close to the battery groove is less than the depth of the battery part groove.

[0083] In the solution of this disclosure, a battery is provided in the earphone box, and the battery is specifically arranged in the middle area inside the lower shell of the earphone box. Specifically, as Figure 7As shown in the schematic diagram of the lower shell of the earphone case, in this solution, the depth of the middle area of the ear hook groove 1023 is the largest, and the middle area of the ear hook groove 1023 is located at both ends of the earphone case. Through such a depth design, the depth of the installation groove in the middle area of the earphone case is relatively shallow. Therefore, there is enough space below this area to accommodate the battery. Thus, the battery in the lower shell of the earphone case can be made thicker as a single unit, and there is no longer a need to cut the battery into two pieces and install them separately below the first installation groove and the second installation groove. Instead, it can be made into a single piece and installed between the two ear hook grooves. Through this design, the demoulding efficiency is improved when manufacturing the earphone case.

[0084] As Figure 5 and Figure 6 shown, in one embodiment, the limiting parts for limiting the earphone on the first shell 101 include a first limiting part 1011 and a second limiting part 1012. The first limiting part 1011 extends from the inner surface of the first shell 101 towards the second shell 102, that is to say, the first limiting part 1011 is a convex structure arranged on the inner surface of the first shell 101. This convex structure is arranged on the first axis and is symmetrically arranged along the first axis. Since the battery part grooves 1024 in the first installation groove and the second installation groove are relatively and obliquely arranged in this disclosure, two battery part grooves 1024 form a V-shaped area 1026 with an opening facing the second side. When the first shell 101 and the second shell 102 are in the closed state, the projected part of the first limiting part 1011 on the second shell 102 falls partly into the V-shaped area 1026 and partly into the battery part groove 1024. The projection of the first limiting part 1011 in the battery part groove 1024 is the first part, and the first part and the first limiting part 1011 arranged above it together constitute the first limiting area. Also, since the projection of the first limiting part 1011 falls into the battery part groove 1024 of the first installation groove and the battery part groove 1024 of the second installation groove at the same time, the first limiting part 1011 and the first parts of the two battery part grooves 1024 together constitute two first limiting areas.

[0085] In the above solution, the second limiting part 1012 is also arranged on the inner surface of the upper shell 101 facing the accommodating cavity, and the second limiting part is a plane or a curved surface. The second limiting part 1012 is arranged opposite to the second part of the installation groove, and the second limiting part 1012 and the second part constitute the second limiting area. In one embodiment of this solution, the second part of the installation groove refers to the area where the orthographic projection of the main body part groove of the earphone on the inner surface of the upper shell is located, and the main body part groove and the second limiting part 1012 constitute the second limiting area. When the earphone is installed in the installation groove and the upper shell and the lower shell are in the closed state, the top surface of the earphone main body abuts against the second limiting part 1012 on the inner surface of the upper shell, so that the second limiting part and the main body part groove jointly limit the earphone.

[0086] In another embodiment of this solution, when the earphone is installed in the installation groove, the plane where the top surface of the earphone body is located is coplanar with the plane where the uppermost end of the battery part is located. In this embodiment, the second part of the installation groove refers to the area where the projections of the body part groove and the battery part groove on the inner surface of the first housing are located. The body part groove and its projection, and the battery part groove and its projection together form the second limiting area. When the first housing and the second housing are in the closed state, the top surface of the earphone body part abuts against the inner surface of the first housing, and the uppermost end of the battery part abuts against the inner surface of the first housing. That is to say, the second limiting area limits the two ends of the earphone, namely the body part and the battery part. In this solution, since the middle area of the earhook is completely located in the earhook groove, mainly limiting the two ends of the earphone can achieve the overall limitation of the earphone.

[0087] In another embodiment, the setting position of the first limiting part 1011 is different from that in the above solution. In this solution, the projection of the first limiting part 1011 on the second housing 102 only falls into the V-shaped area 1026, and the outermost side of this projection is located at the side wall of the battery part groove 1024. In this solution, whether the lower end of the first limiting part 1011 on the first housing 101 abuts against the surface of the V-shaped area 1026 or has a certain distance can achieve the limitation of the earphone.

[0088] In the above solution, when the earphone is installed in the battery part groove, at least fifty percent of its volume is located outside the battery part groove. Therefore, when the first limiting part 1011 abuts against the outer surface of the battery part at the central axis in the horizontal direction, the first limiting part 1011 can limit the battery part in the horizontal direction. When the first limiting part 1011 abuts against the outer surface of the battery part above the central axis in the horizontal direction, the first limiting part 1011 can limit the battery part obliquely downward.

[0089] The second limiting area in this disclosure can limit the earphone in the vertical direction and also in the horizontal direction. On this basis, a first limiting area is set. The first limiting area can limit the earphone in the horizontal direction and also in other directions, so that the earphone in this solution can be more firmly limited in the limiting cavity, avoiding the displacement of the earphone in the earphone box 100 and affecting its charging.

[0090] Of course, in other solutions, part of the lower housing of the earphone box can also be set as a transparent or semi-transparent housing. For example, the housings at both ends in the length direction of the earphone box are transparent housings, so that the user can further see more parts of the earphone through the housing.

[0091] In the solution disclosed herein, in order to provide a better visual effect for the user, the first housing 101 of the earphone case 100 is made into a transparent housing or a translucent housing, so that the user can observe the earphones through the first housing 101 without opening the earphone case 100.

[0092] In the solution disclosed herein, the earphone includes a body part and a battery part, wherein the first limiting area limits the battery part, and the second limiting area limits the body part; the battery part includes a cylindrical housing, and a part of the outer surface of the housing abuts against the first part of the installation groove; and the outer surface of the housing is tangent to the curved surface of the first limiting part, or the shortest distance between the outer surface of the housing and the curved surface of the first limiting part is 0.2 - 0.5 mm.

[0093] In the above solution, since there is a certain distance between the outer surface of the first limiting part and the housing of the battery part, tolerances can be accommodated, and touching can be reduced to avoid scratching the earphone.

[0094] In one embodiment, the earphone matching the earphone case 100 in this solution is an open earphone, and the open earphone includes an earphone body, an earhook and a battery part connected in sequence. The battery part at least includes a battery and a cylindrical housing arranged on the outer periphery of the battery, and the first limiting part 1011 on the first housing 101 has a curved surface convex structure on the outer surface. When the earphone is placed in the installation groove and the first housing 101 and the second housing 102 are in a closed state, the outer surface of the housing of the battery part is tangent to the curved surface of the first limiting part 1011, that is, the first limiting part 1011 abuts against the battery part to limit it, so as to prevent the displacement of the battery part from affecting charging.

[0095] As Figure 8 As shown in the cross-sectional view of the earphone case in the direction perpendicular to the first housing and the second housing, in another embodiment, the circumferential surface of the battery part does not abut against the curved surface of the first limiting part 1011, but has a gap with the first limiting part 1011. Specifically, the shortest distance between the circumferential surface of the battery part and the curved surface of the first limiting part 1011 is 0.2 - 0.5 mm. Since there is a margin space between the charging positions of the earphone, the offset of the earphone within this margin space will not affect charging. Therefore, the distance between the battery part and the first limiting part 1011 is set to 0.2 - 0.5 mm, so that the first limiting part 1011 can limit the offset of the battery part within a certain range and does not affect charging.

[0096] In a specific implementation, the distance between the circumferential surface of the battery part and the curved surface of the first limiting part is 0.3 mm. Of course, in other specific implementations, this distance can also be other values between 0.2 - 0.5 mm.

[0097] In the solution disclosed herein, the first limiting portion is made of a transparent material, and the surface of the first limiting portion does not abut against the battery portion. Such a setting can effectively reduce the contact area between the earphone and the first limiting portion, reduce the scratching inside, and improve the durability of the first limiting portion. Moreover, the first housing of the earphone case in this solution is a transparent housing, so that the details of the earphone can be clearly displayed on the appearance surface.

[0098] In addition, when the earphone is placed in the earphone case, the battery portion will abut against the first limiting portion when the earphone shakes with the earphone case. Since the conduction of force does not require the entire surface to bear, the outer surface of the first limiting portion in this solution is set as a curved surface, so that the earphone and the first limiting portion can achieve the limitation of the earphone through point contact or line contact. In this solution, the first limiting portion is set as a convex curved surface, which can reduce the volume of the first limiting portion compared with setting the first limiting portion as a cylinder, thus saving materials.

[0099] In the solution disclosed herein, when the first housing 101 and the second housing 102 are in a closed state, the first limiting portion 1011 abuts against the inner surface of the second housing 102 opposite thereto; or the distance between the first limiting portion 1011 and the inner surface of the second housing 102 opposite thereto is 4 - 6 mm.

[0100] In this solution, when the projection of the first limiting portion 1011 on the second housing 102 only falls into the V-shaped region 1026, the first limiting portion 1011 can either abut against the surface in the V-shaped region 1026 on the second housing 102 or not. Specifically, in one embodiment, the extension length of the first limiting portion 1011 is relatively long. When the first housing 101 and the second housing 102 are in a closed state, the lower end of the first limiting portion 1011 abuts against the inner surface of the second housing 102, and the first limiting portion can play a role in supporting the first housing, so that the first housing will not collapse when pressed. In another embodiment, in order to save materials, the extension length of the first limiting portion 1011 does not need to be set very long, that is, when the first housing 101 and the second housing 102 are in a closed state, the lower end of the first limiting portion 1011 does not need to abut against the inner surface of the second housing 102, but has a certain distance from the inner surface of the second housing 102, and this distance can be 4 - 6 mm.

[0101] In a specific embodiment, the distance between the first limiting portion and the inner surface of the lower housing is 5 mm. Of course, in other specific implementation solutions, this distance can also be other values between 4 - 6 mm.

[0102] In this solution, since there is a distance between the first limiting part and the lower housing, that is to say, the protrusion of the first limiting part is not too much, which can reduce the stress risk of the first limiting part during the production process of special-shaped injection molding and can also reduce the stress risk of the first limiting part after production is completed.

[0103] In this solution, since the battery part protrudes from the battery part groove 1024, the extension length of the first limiting part 1011 only needs to be able to abut against the battery part, and there is no need to extend to the position of the inner surface of the second housing 102 to still be able to limit the battery part.

[0104] In the solution disclosed in this disclosure, when the user places the earphone in the earphone case, in order to reduce the knocking or abnormal noise generated by contact when the earphone contacts the installation groove, flexible pads are provided at the bottoms of the body part groove and the battery part groove. In addition, the flexible pads can also accommodate the machining tolerances of the body part groove and the battery part groove.

[0105] In the solution disclosed in this disclosure, the top surface of the body part of the earphone is a flat surface, and the second limiting part 1012 is a flat surface. When the earphone case is in a closed state, the second limiting part 1012 abuts against the top surface, or the second limiting part is arranged parallel to the top surface, and the distance between the two is xxx.

[0106] In a specific implementation, the top surface of the body part of the earphone is a flat surface. The top surface of the body part refers to the upper surface of the body part, and the side opposite to the upper surface of the body part is the lower surface. When the earphone is installed in the earphone case, the lower surface abuts against the body part groove, and the upper surface abuts against or does not abut against the second limiting part for limiting. When the upper surface of the body part does not abut against the second limiting part, the distance between the two is 0.2 - 0.5 mm.

[0107] In the solution disclosed in this disclosure, the top surface of the body part of the earphone is a flat surface; the second limiting part is an arc surface. When the earphone case is in a closed state, the arc surface abuts against the top surface, or the distance between the two is 0.2 - 0.5 mm.

[0108] In a specific implementation, the second limiting part can be not a flat surface but an arc surface, and the arc surface protrudes towards the second housing. When the earphone is installed in the earphone case, the arc surface abuts against the upper surface of the body part, and the two limit the body part through point contact or line contact. Or when the earphone is installed in the earphone case, the arc surface does not abut against the upper surface of the body part, and the distance between the two is any value within 0.2 - 0.5 mm.

[0109] In the above solution, since there is a certain distance between the arc-shaped upper surface or the flat upper surface of the body part and the second limiting part, tolerances can be accommodated, and the knocking of the earphone and the abnormal noise generated by knocking can be effectively reduced.

[0110] In the solution provided by this disclosure, on the outer surface of the first housing, at a position opposite to the first limiting portion, there is a recess towards the accommodating cavity; the first limiting portion forms a first curved surface, the recess forms a second curved surface, and the first curved surface and the second curved surface are coaxially arranged; the curvature of the first curved surface is smaller than the curvature of the second curved surface, forming a lens.

[0111] In the above solution, the first limiting portion extends inwards from the outer surface of the first housing towards the inner surface and protrudes from the inner surface. That is to say, the outer surface of the first limiting portion is not a flat surface, and there is a recessed area in the middle region, which is correspondingly arranged with the first limiting portion. In the solution of this disclosure, since there is a recess on the upper surface of the first housing, users can distinguish the first housing from the second housing through touch.

[0112] Specifically, the first limiting portion forms a first curved surface, and the recess forms a second curved surface, where the first curved surface and the second curved surface are coaxially arranged. In a specific solution, the curvature of the first curved surface is smaller than the curvature of the second curved surface, that is, the protruding height of the first curved surface is greater than the protruding height of the second curved surface, that is, the center of the first housing is the thickest, and the recess and the first limiting portion form a lens. Also, since the first housing is made of a transparent material, a special visual effect will be formed at the recess.

[0113] Those skilled in the art can understand that according to different design requirements, the curvature of the first curved surface can also be set to be equal to or greater than the curvature of the second curved surface.

[0114] In addition, in other solutions, the outer surface of the first housing can be a flat surface, and the first limiting portion protrudes from the inner surface of the first housing.

[0115] In the solution of this disclosure, a stop portion is provided on the second housing 102, and the stop portion is provided at a position on the side wall of the battery part groove 1024 opposite to the first part and away from the first limiting portion, and the stop portion, the battery part groove, and the first limiting portion together form a third limiting area for restricting the cylindrical surface of the battery part.

[0116] Such as Figure 7As shown in the schematic diagram of the second housing of the earphone case, in a specific solution, in order to further limit the earphone, a stop portion is further provided on the second housing 102. Specifically, the stop portion 1025 is provided on the side wall of the battery portion groove 1024 away from the first limiting portion. More specifically, the stop portion 1025 is a plate-like structure extending from the side wall position opposite to the side wall forming the V-shaped region 1026 towards the first housing 101. That is to say, the stop portion 1025 and the first limiting portion are respectively provided on both sides of the battery portion groove and are oppositely arranged. When the earphone is placed in the installation groove and the earphone case is in the closed state, the stop portion abuts against the outer peripheral surface of the battery portion and a first support point is formed therebetween, and the outer peripheral surface of the battery portion abuts against the first limiting portion and a second support point is formed therebetween. The connection line of the first support point and the second support point can be arranged parallel to the upper surface of the main body portion, or can be inclined and extend towards the inner surface of the first housing. In addition, the surfaces of the battery portion in contact with the lowest end of the battery portion groove are respectively connected to the first support point and the second support point, and the three form a triangle. That is to say, the stop portion, the battery portion groove and the first limiting portion jointly constitute a third limiting area for limiting the cylindrical surface of the battery portion. In this solution, due to the setting of the stop portion, the limiting effect on the battery portion is further improved.

[0117] In a specific implementation, the stop portion 1025 extends from the side wall position of the battery portion groove towards the inner surface of the first housing, and the extending end thereof does not abut against the inner surface of the first housing 101.

[0118] In another specific implementation, the stop portion 1025 extends from the side wall position of the battery portion groove towards the inner surface of the first housing, and the extending end thereof is flush with the axial section of the battery portion.

[0119] In the above solution, since the installation groove includes a first installation groove and a second installation groove, two stop portions 1025 are provided on the second housing 102. When in use, when the earphone is installed in the earphone case 100, the first limiting portion 1011 and the stop portion 1025 respectively clamp both ends of the battery portion to limit the battery portion, and this solution further improves the limiting effect on the earphone in the horizontal direction.

[0120] In the solution disclosed herein, in order to increase the functionality of the stop portion, a functional member is provided on the stop portion. For example, the functional member can be a sensor or a charging contact. When in use, the sensor can detect whether the earphone is installed in place, and the charging contact can charge the battery on the earphone.

[0121] In some specific solutions, in order to better limit the headphone body part, a first magnetic member is provided in the sound - generating part groove 1021 or the connecting member groove 1022, and the body part is fixed by magnetic attraction with the first magnetic member. Of course, in order to better limit the body part, first magnetic members are provided in both the sound - generating part groove 1021 and the connecting member groove 1022, and are respectively fixed by magnetic attraction with their corresponding sound - generating parts and connecting members.

[0122] Those skilled in the art can understand that, in order to further limit the battery part, a magnetic member is provided inside the stop part 1025, or a second magnetic member is provided in the battery part groove 1024, and the second magnetic member is magnetically connected to the battery part to further limit the battery part of the headphone.

[0123] In some specific solutions, in order to further limit other components except the battery part in the horizontal direction, a plurality of first limiting parts 1011 are provided on the inner surface of the first housing 101. The plurality of first limiting parts 1011 form a plurality of positioning points or positioning lines, and the plurality of positioning points or positioning lines are in point - contact or line - contact with the headphone body part or the earhook to limit the body part or the earhook. Since the first housing 101 in this solution is a transparent housing, the first limiting parts 1011 are also set as transparent parts. Therefore, the plurality of first limiting parts 1011 on the upper shell can form a plurality of magnifying - glass effects, making it easier for users to see the local structure of the headphone.

[0124] In the above - mentioned solution, the structures of the plurality of first limiting parts 1011 can be the same or different. For example, the first limiting part 1011 can be a cylindrical structure, a hemispherical structure, or a plate - like structure.

[0125] Those skilled in the art can understand that, in order to better limit the headphone, the first limiting parts 1011 can be symmetrically arranged on both sides of the body part groove or the earhook groove 1023.

[0126] In the solution provided in this embodiment, due to the common cooperation of the first limiting part, the second limiting part, and the stop part, the headphone can be better limited in the accommodation cavity, preventing its displacement from affecting charging.

[0127] In addition, in the solution disclosed in this disclosure, when the first housing of the headphone case is a transparent housing and the outer surface and the inner surface of the first housing form a curved surface, the curved surface will cause light to refract at different angles, resulting in an effect of magnification, reduction, or distortion of the objects inside the headphone case in vision. And the solution disclosed in this disclosure will utilize the fact that the curved surface causes light to refract at different angles to achieve a special visual effect for designing the headphone case.

[0128] Those skilled in the art can understand that when the side wall thickness of the first housing of the earphone case remains unchanged and is perpendicular to the top surface, although refraction occurs when light enters the first housing from the air, the refraction angle is not large, that is, the deformation of the earphone is not large, and the user can still clearly see the shape and position of the earphone through the transparent first housing.

[0129] When the earphone is placed in the installation groove, due to the inconsistent distances between the various parts of the earphone and the side wall of the first housing, a special light and shadow effect will be formed through the curved surface of the side wall of the first housing. For example, when the user gazes in the direction of the rotating shaft along the opening and closing area of the first housing, a part of the earphone area may disappear due to refraction or be distorted, forming a special visual effect.

[0130] The outer surface of the side wall of the first housing of the earphone case in this disclosure is arc-shaped, and the inner surface is a vertical structure perpendicular to the top surface. Therefore, the inner surface and the outer surface of the first side wall form a plano-convex lens. When designing this plano-convex lens, the relative positions of the various parts of the earphone and the first housing need to be considered, so that a clear imaging effect is formed in the area near the lens focus for some parts of the earphone, and a blurred imaging effect is formed in the area far from the focus, so that the earphone can form clear and blurred visual changes, enhancing the visual hierarchy.

[0131] According to the characteristics of the above-mentioned plano-convex lens, the important parts of the earphone can be set close to the focus, and the unimportant parts can be set far from the focus. For example, the charging contacts of the earphone are usually set on the earphone body part, so the body part can be set close to the focus, so that the user can clearly see the shape and position of the body part through the first housing.

[0132] In addition, since the outer surface of the first housing is a curved surface, the side wall of the first housing can form a more obvious lens effect and the light-gathering effect of the lens at a very low height, making this area appear brighter. Therefore, for areas that need to enhance the visual effect, such as the edges or specific angles, the curvature of the outer surface of the housing and the thickness change of the inner surface are designed to form a lens effect. Ensure that the design of these areas can gather light, making specific parts appear brighter and increasing the visual attraction.

[0133] In the solution provided by this disclosure, in order to make the first housing have a specific visual effect, before manufacturing the first housing, the influence of different curvatures and wall thicknesses on light is first simulated by computer simulation, the design is optimized, and the curvature and wall thickness and other parameters of the first housing required to achieve the visual effect are determined, and then the first housing is manufactured according to the determined parameters.

[0134] In some embodiments, this disclosure also provides an earphone adapted to the earphone case.

[0135] Such as Figure 12As shown in the bottom view of the earphone, the earphone in this solution is an open earphone 200, which includes a main body part, an ear hook 203 and a battery part 204 connected in sequence. Since there are a first installation groove and a second installation groove arranged at intervals in the earphone box, the earphone also includes a first earphone placed in the first installation groove and a second earphone placed in the second installation groove without overlapping. When the earphone is in the storage state, the earphone is placed in its corresponding installation groove along the direction of the joint surface of the earphone box. That is to say, when the earphone box is placed horizontally, the main body part, the ear hook and the battery part of the earphone are also placed horizontally in the installation groove and extend in the horizontal direction.

[0136] In the solution disclosed in this disclosure, when the earphone is placed in the earphone box, the thickness of the earphone protruding from the installation groove accounts for at least one-half of its total thickness.

[0137] In the above solution, the thickness of the main body part of the earphone is 12 mm, the thickness of the sound-emitting part protruding from the connecting part is 2-4 mm, and this part is completely located in the sound-emitting part groove. The thickness of the third part of the connecting part is 7-11 mm. When the earphone is placed in the earphone box, the thickness of the connecting part protruding from the connecting part groove is 6-8 mm.

[0138] In a specific implementation, the thickness of the main body part of the earphone is 12 mm, the thickness of the sound-emitting part protruding from the connecting part is 3 mm, and this part is completely located in the sound-emitting part groove. The thickness of the third part of the connecting part is 9 mm. When the earphone is placed in the earphone box, the thickness of the connecting part protruding from the connecting part groove is 7 mm.

[0139] In addition, in this solution, the thickness of the battery part is not much different from that of the main body part, and the ratio of the thickness of the battery part protruding from the battery part groove is the same as the ratio of the thickness of the main body part protruding from the main body part groove.

[0140] In this solution, after the earphone is placed in the installation groove, the thickness of the earphone protruding from the installation groove is relatively large, thus providing enough space for the user to pick up, which is convenient for the user to perform the pick-up and put-down operations on the earphone.

[0141] In a specific embodiment, the main body portion includes a sound generating portion 201 and a connecting member 202. The housing of the sound generating portion 201 is a cylinder, and a sound outlet hole for emitting sound is provided on the end surface of the cylinder facing the human ear. The connecting member 202 is a strip-shaped structure with a certain thickness. One end of the connecting member 202 is connected to the sound generating portion 201, and the other end is connected to one end of the earhook 203. More specifically, the sound generating portion 201 includes a lower surface facing the ear canal direction and an upper surface away from the ear canal direction. The connecting member 202 includes a lower surface facing the ear canal direction and an upper surface away from the ear canal direction. The end portion of the connecting member 202 is connected to at least the peripheral wall of the upper surface of the sound generating portion 201, and the lower surface of the sound generating portion 201 is convexly provided above the lower surface of the connecting member 202. That is, there is a height difference between the lower surface of the connecting member 202 and the lower surface of the sound generating portion 201, so that a stepped portion is formed between the lower surface of the connecting member and the lower surface of the sound generating portion 201.

[0142] To better understand the solution of the present disclosure, the structure of the human ear and the positional relationship between each component of the earphone and the human ear when the earphone is worn on the human ear will be described in detail below.

[0143] Specifically, as Figure 9 shown in the schematic diagram of the human ear structure, the externally visible area of the human ear 300 includes the helix 301, the scaphoid fossa 302, the cymba conchae 303, the concha cavum 304, the antihelix 305, the earlobe 306, the antitragus 307, the incisura intertragica 308, the tragus 309, the crus helicis 310, and the triangular fossa 311. In some embodiments, one or more parts of the human ear can be used to support the earphone to achieve stable wearing of the earphone.

[0144] In some embodiments, since the concha cavum 304, the cymba conchae 305, the triangular fossa 311 and other parts have a certain depth and volume in three-dimensional space, these three regions can all be used to accommodate the sound generating portion, so as to meet the wearing requirements of the earphone.

[0145] As Figure 10 and Figure 11 shown in the schematic diagram of the earphone worn on the human ear model, in the solution of the present disclosure, the sound generating portion is located in the concha cavum.

[0146] In a specific embodiment, when the earphone is worn on the human ear through the ear hook 203, due to the step portion at the connection between the sound generating portion and the connecting member, part of the sound generating portion can penetrate into the concha cavity, and the free end of the sound generating portion forms a first support area with the human ear. The ear hook forms a suspension point at the upper part of the human ear, and the battery portion forms a third support area with the back of the human ear. The earphone is fixed in the vertical direction through the suspension point, and clamps the human ear in the horizontal direction through the first support area and the third support area. The triangle formed by connecting the first support area, the suspension point and the third support area can stably fix the earphone in the relative position of the human ear. In this solution, the free end of the sound generating portion refers to the end far from the connection with the connecting member. The first support area refers to the area where the lower surface of the sound generating portion abuts against the bottom wall of the concha cavity, and the area where the peripheral wall at the free end of the sound generating portion abuts against the peripheral wall of the concha cavity.

[0147] In the above solution, the three regions where the earphone contacts the human ear are all smoothly transitioned, and the curvature is similar to that of the human ear itself, so that the foreign body sensation can be reduced in the wearing state, approaching a feeling of no wearing.

[0148] In some embodiments, the contact area between the earphone and the human ear is small, usually point contact, line contact or small surface contact. Coupled with the contoured design of the earphone itself and the clamping force on the ear, on the basis of stable wearing on the human ear, the area where the clamping force is applied to the ear can also be reduced, improving the wearing experience of the user.

[0149] More specifically, the part of the sound generating portion 201 protruding from the connecting member 202 is located in the concha cavity 304, and the connecting member 202 extends obliquely upward through the area between the tragus 309 and the crus of helix 310 of the human ear. There is a concave area between the tragus 309 and the crus of helix 310. The connecting member 202 can avoid the tragus, so that the lower surface of the sound generating portion abuts against at least part of the bottom wall of the concha cavity, and the two tend to be parallel. In use, even if the user's head shakes, the sound generating portion 201 can be limited in the concha cavity, so that the sound holes on the sound generating portion can be aligned with the ear canal. This solution can effectively prevent the sound generating portion from moving and leaking sound, thus providing a better auditory experience for the user.

[0150] As Figure 16 As shown in the perspective view of the earphone, in the solution disclosed herein, when the earphone is in the wearing state, the connecting member extends obliquely upward from the connection end with the sound generating portion to the connection end with the ear hook. Specifically, there is an angle a between the connecting member and the parallel line of the human body vertical axis, where the value range of a is between 45° and 60°. In this solution, the human body vertical axis refers to the line that passes through the center of the human body in the height direction of the human body and is perpendicular to the ground when the person stands on the horizontal ground. The parallel line of the human body vertical axis refers to the straight line passing through the center of the upper surface of the sound generating portion.

[0151] In the above solution, since there is an included angle between the parallel lines of the connecting piece and the human body vertical axis, the connecting piece 201 is arranged through the area between the tragus 309 and the helix crus 310. This setting method can enable the connecting piece to avoid part of the tragus and make the ear hook wear more firmly.

[0152] As Figures 12 - 14 shown, in the solution provided by this disclosure, the connecting piece 202 is a receiving cavity surrounded by a transparent or semi-transparent housing. An electronic component is arranged in the receiving cavity, and the housing covers a part of the peripheral wall of the sound generating part 201.

[0153] In the above solution, the connecting piece 202 is a receiving cavity surrounded by a transparent or semi-transparent housing, and an electronic component is arranged in the receiving cavity. The housing includes a first housing 2021 and a second housing 2022. The first housing 2021 includes an integrally formed first part 2021-1, a second part 2021-2, and a third part 2021-3. The first part 2021-1 is a semi-enclosed structure in a cylindrical shape, which covers a part of the peripheral wall and a part of the upper surface area of the sound generating part 201. Specifically, the end of this semi-enclosed structure facing the ear hook 203 has a notch, and the middle area and the area extending from the middle area to the end of the ear hook 203 have hollow parts. The second part 2021-2 covers above the hollow part of the first part 2021-1 and protrudes from the top surface of the first part 2021-1. The top surface of the first part 2021-1 refers to the surface away from the ear canal direction. The third part 2021-3 is arranged between the sound generating part 201 and the ear hook 203. One end of the third part 2021-3 is connected to the notch of the first part 2021-1, and the other end is abutted or fixedly connected to the ear hook 203. The third part 2021-3 has three side walls in its circumferential direction, which are the upper side wall facing away from the human ear, the right side wall facing the ear hook 203, and the left side wall arranged opposite to the right side wall. The third part and the second housing enclose a sleeve structure.

[0154] In the above solution, the direction in which the connecting piece is close to or away from the human ear is the thickness direction, the extending direction of the two ends of the connecting piece is the length direction, and the connecting direction between the left and right side walls is the width direction. In this solution, the width of the connecting piece 202 is smaller than the diameter of the upper surface of the sound generating part 201. That is to say, the width of the second part 2021-2 is smaller than the diameter of the upper surface of the sound generating part 201. The volume of the connecting piece 202 in this solution is smaller, so that the earphone 200 does not cover the human ear in a large area, avoiding sweating of the covered part and affecting the user experience.

[0155] In the solution disclosed herein, the sound - generating part 201 includes two parts. One part is the protruding part provided by the protruding connecting piece 202, and the other part is the part covered by the first part. The area of the end face of the part covered by the first part is smaller than the area of the end face of the protruding part. The circle formed by the end of the first part has the same size as the circle of the end face of the protruding part. That is to say, when the first part is covered above the sound - generating part 201, the whole formed by the housing of the protruding part of the sound - generating part 201 and the first part is a cylinder. Of course, in other embodiments, the areas of the end faces of the two parts of the sound - generating part may also be the same.

[0156] In the solution disclosed herein, in order to more conveniently send control instructions to the earphone, a pressure sensor is provided on the inner surface of the side wall of the third part 2021 - 3. When in use, the user presses the side wall where the pressure sensor is located. After the pressure sensor receives the signal, it sends the control instruction corresponding to the signal to the earphone 200. After receiving the control instruction, the earphone 200 executes the operation corresponding to the control instruction.

[0157] Those skilled in the art can understand that a pressure sensor can be provided on the inner surface of any one or more of the upper side wall, the left side wall, and the right side wall of the third part. For example, when setting one pressure sensor, the pressure sensor can be separately set on the inner surface of any one of the right side wall, the right side wall, or the upper side wall. For example, when two pressure sensors need to be set, they are usually set on the inner surfaces of the right side wall and the upper side wall or the inner surfaces of the left side wall and the upper side wall, avoiding installation on the two relatively - arranged left side wall and right side wall, so as to prevent accidentally touching another sensor when sending an instruction to one sensor. In the solution provided in this disclosure, the sound - generating part 201 and the ear hook 203 can be directly connected by the connecting piece 202, or can be connected by the fixing piece inside the connecting piece 202.

[0158] In a specific implementation, the end of the ear hook 203 connected to the connecting piece 202 has an arc - shaped groove extending in a direction away from the sound - generating part 201, and the first housing has a connecting part extending towards the end of the ear hook 203. Specifically, the upper side wall of the third part extends vertically towards the second housing, and the extending end extends parallel to the second housing towards the ear hook 203 to form a connecting part. The second housing has a connecting part extending towards the end of the ear hook 203. The two connecting parts are inserted into the arc - shaped groove to connect the connecting piece 202 and the ear hook 203.

[0159] Based on the above - mentioned solution, those skilled in the art can understand that the second housing is fixedly connected to the third part, and then the connecting piece and the ear hook can still be connected only by connecting the ear hook through the second housing or the third part.

[0160] In the above scheme, in order to make the connection between the sound-emitting part and the ear hook tighter, a fastener is provided at the connection between the two. The fastener passes through the fastening hole 203-4 on the ear hook, the connection part of the third part and the connection part of the second shell in sequence to fix the three parts together. Or the fastener passes through the fastening hole 203-4 on the ear hook and the connection part of the third part in sequence to fix the two together. Or the fastener passes through the fastening hole 203-4 on the ear hook and the connection part of the second shell in sequence to fix the two together. This scheme can reduce the amount of glue used and avoid affecting the appearance of the connector 202. In particular, when the connector is a transparent / translucent part, glue overflow is reduced inside or at the joint, which can significantly optimize the appearance effect.

[0161] In another specific embodiment, a fixing piece is provided in the sleeve formed by the third part and the second shell, one end of which is connected to the sound-emitting part 201, and the other end of which is connected to the ear hook 203. In this embodiment, the fixing piece plays a connecting role, and the third part and the second shell are only provided on the periphery of the fixing piece to protect the fixing piece and to improve the appearance.

[0162] In order to provide users with a better wearing experience, when the sound-emitting part 201 is inserted into the concha cavity area, the outer periphery of the sound-emitting part 201 is not in contact with the antihelix, antitragus and tragus as much as possible, so in this solution, the diameter of the lower surface of the sound-emitting part 201 is set to be smaller than the diameter of the circle formed by being tangent to the antihelix, antitragus and tragus at the same time. In some specific implementation schemes, the diameter of the lower surface of the sound-emitting part 201 ranges from 14 to 16.5 mm, so as to fit the average value of the concha cavity on the human ear.

[0163] The above embodiment introduces the sound-emitting part 201 and the connecting part 202 , and the ear hook 203 and the battery part 204 are described in detail below.

[0164] In the solution disclosed herein, the function of the ear hook 203 is to fix the earphone 200 on the human ear. Therefore, the shape of the ear hook 203 is a curved structure adapted to the outer contour of the human ear. Specifically, the ear hook 203 extends obliquely from the end connected to the third part towards the right side wall of the third part first, and then extends towards the end of the sound generating part 201 away from one end of the connecting member 202. The extending end thereof is located at the end of the sound generating part 201 and is connected to the battery part 204. In this solution, the ear hook 203 may include three consecutive curved segments: a first curved segment, a second curved segment, and a third curved segment. Specifically, the first curved segment starts from the end connected to the connecting member 202 and extends towards the right side wall of the third part; the second curved segment continues the first curved segment and extends substantially along the right side wall of the third part; the third curved segment continues the second curved segment and extends obliquely to approach the end of the sound generating part 201 away from the connecting member 202. As an example, the radius of curvature of the first curved segment is the smallest, the second curved segment is the second smallest, and the radius of curvature of the third curved segment is the largest. This gradually changing curvature design enables the ear hook 203 to better fit the shape of the outer contour of the human ear.

[0165] As Figure 13 As shown in the front view of the earphone, since the function of the ear hook 203 is to fix the earphone 200 on the human ear, and the human ear usually protrudes obliquely outward relative to the side of the head, forming an angle with the head. In order to better fit the human ear in this solution, the ear hook 203 first extends obliquely downward below the lower surface of the sound generating part 201, and then extends obliquely upward towards the upper surface of the sound generating part 201, and the extending end thereof is slightly higher than the upper end surface of the first part or is flush with the upper end wall of the first part. Since there is an angle of 25° - 30° between the human ear and the head, in order to better fit the human ear in this solution, there is an angle b between the middle area of the ear hook and the two ends of the ear hook. In a specific embodiment, b is 30°.

[0166] The diameter of the ear hook 203 in the above solution changes from the connection with the sound generating part 201 to the connection with the battery part 204. The ear hook 203 is generally a cylindrical structure as a whole, and it sequentially includes a first diameter-changing segment 203-1, a diameter segment 203-2, and a second diameter-changing segment 203-3. The first diameter-changing segment 203-1 refers to the area from the connection of the ear hook with the sound generating part to the top end of the ear hook, and the diameter in this area gradually becomes smaller. The second diameter-changing segment 203-3 is the end of the ear hook 203 connected to the battery part 204. The second diameter-changing segment 203-3 is in a flared shape, and the diameter of the ear hook at this position rapidly changes from small to large, and the largest diameter is connected to the battery part. The diameter segment 203-2 is located between the first diameter-changing segment and the second diameter-changing segment.

[0167] When the earphone 200 is in a worn state, the first diameter-changing section 203-1 is located at the upper part of the auricle in front of the human ear, the diameter section 203-2 is located in the middle area at the back of the human ear, and the second diameter-changing section 203-3 is located in the lower middle area at the back of the human ear. In this solution, the starting position of the first diameter-changing section is the connection with the connecting member 202, and the end position is the top of the earhook 204, and this top is at the top of the human ear and the areas slightly in front of and behind the top. That is to say, this top refers to a certain area extending forward and backward at the suspension point between the earhook and the upper part of the human ear. In this solution, as the inner diameter of the first diameter-changing section gradually becomes smaller, it can effectively avoid the temple of the glasses worn by the user or other ornaments, thereby improving the user experience.

[0168] In a specific implementation, the first diameter-changing section of the earhook is not cylindrical but has an irregular shape. Specifically, the thickness of the first diameter-changing section gradually decreases from the starting position to the end position, and the width also gradually decreases. In this solution, the thickness direction refers to the direction in which the earhook approaches or moves away from the human ear, the length direction refers to the extending direction of the first diameter-changing section, and the width direction refers to the direction perpendicular to the length direction and the thickness direction. In this solution, since the first diameter-changing section gradually decreases in the thickness direction, the area of the first diameter-changing section located at the upper part of the human ear is the thinnest, so that it can better avoid the temple of the glasses worn by the user or ornaments such as hairpins, improving the user experience.

[0169] As Figure 16 As shown in the perspective view of the earphone, in the solution provided by this disclosure, the battery part 204 is cylindrical, one end of which is connected to the earhook 203, and the other end extends away from the earhook 203, and the extending end thereof extends beyond the sound generating part 201. In this solution, the connection between the earhook 203 and the battery part 204 is located on the free end side of the sound generating part 201, and when the earhook is in a non-worn state, the distance between the connection between the earhook and the battery part 204 and the free end of the sound generating part is h, where h is 3-5 mm in this solution. In a specific implementation, h is 3.6 mm.

[0170] In the solution provided by this disclosure, in the worn state, the area of the earhook located before and after the suspension point at the upper part of the human ear is the top of the earhook; on the surface of the sound generating part 201 close to the ear canal direction, a front sound outlet hole 2011 is provided, and on the peripheral wall of the sound generating part 201, a rear sound outlet hole 2012 is provided. Both the front sound outlet hole 2011 and the rear sound outlet hole 2012 are arc-shaped and are both provided on the surface of the sound generating part 201 away from the top of the earhook 203.

[0171] In the above solution, the sound emitting part 201 of the earphone 200 has two sound outlet holes on the surface far from the top end of the ear hook 203, namely a front sound outlet hole 2011 and a rear sound outlet hole 2012, both of which are smooth circular arcs. Specifically, the front sound outlet hole 2011 is arranged on the lower surface of the sound emitting part 201. The rear sound outlet hole 2012 is arranged at the peripheral wall of the sound emitting part 201 covered by the first part. More specifically, the rear sound outlet hole 2012 extends at the peripheral wall of the sound emitting part 201 on the side far from the ear hook 203, and the front sound outlet hole 2011 extends at the lower surface of the sound emitting part 201 close to the rear sound outlet hole 2012, and the bending direction of the front sound outlet hole 2011 is opposite to the bending direction of the ear hook 203.

[0172] In the solution disclosed herein, when the earphone 200 is in a worn state, the bending direction of the arc of the front sound outlet hole 2011 is set towards the rear of the human ear. This solution is less likely to have impurities and the like accumulate in the area where the sound outlet hole is located compared to the earphone 200 with the front sound outlet hole 2011 set towards the upper part of the human ear, and is cleaner and tidier.

[0173] In the solution provided by this disclosure, at the end position where the ear hook is connected to the connecting member, there is a first microphone 2024, and the first microphone 2024 is arranged far from the top end of the ear hook; on the side wall of the housing towards the top end of the ear hook, there is a second microphone 2025.

[0174] In a specific implementation, two microphones are also arranged on the earphone 200, namely a first microphone 2024 and a second microphone 2025. Specifically, the first microphone 2024 is arranged on the second part of the connecting member 202, and the second microphone 2025 is arranged on the ear hook 203. More specifically, the first microphone 2024 is arranged at the end position where the ear hook 203 is connected to the left side wall of the second part, and the first microphone 2024 is arranged far from the top end of the ear hook. The second microphone 2025 is arranged at the side wall of the second part of the housing towards the top end of the ear hook 203, and a wind shelter area is formed between the side wall of the housing towards the top end of the ear hook and the human ear, and the second microphone 2025 is located in the wind shelter area, that is, in the area where the tragus 310 is located.

[0175] In the solution disclosed herein, the second microphone 2025 is arranged towards the top end of the ear hook. When the earphone 200 is in a worn state, the second microphone 2025 is in the wind shelter area of the earphone, so as to avoid direct wind blowing onto the second microphone 2025 and causing interference to it, thereby affecting the call quality.

[0176] The earphone 200 provided by this disclosure has a stepped portion formed between the sound generating part 201 and the connecting member 202, which can avoid part of the tragus, so that the sound generating part 201 can be better located in the concha. During the wearing process of the earphone 200, the sound generating part 201 will not easily detach from the concha due to the shaking of the head, which affects the user's reception of the sound emitted by the earphone 200. This solution can improve the user experience.

[0177] Although multiple embodiments of this disclosure have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many variations, changes and alternative ways may occur to those skilled in the art without departing from the spirit and scope of this disclosure. It should be understood that various alternatives to the embodiments of this disclosure described herein may be employed in practicing this disclosure. The appended claims are intended to define the scope of protection of this disclosure and thus cover equivalents or alternatives within the scope of these claims.

Claims

1. A box body, comprising a first shell and a second shell, characterized in that: The first shell and the second shell are rotatably connected via a rotating shaft arranged on the first side; when the two are in a covered state, the end of the first shell abuts against the end of the second shell to form a joint surface, and the internal area surrounded by the first shell and the second shell forms a receiving cavity; On a second side opposite to the first side, the first shell and the second shell form an opening and closing area; In the opening and closing area, the outer surface of the first shell and the outer surface of the second shell are both retracted inward toward the joint surface to form a groove.

2. The box body according to claim 1, characterized in that: The area where the groove is located is an opening and closing portion, and the opening and closing portion is the area between the ends of the first shell and the second shell respectively extending along the outer surface of the groove in a direction away from the accommodating cavity at the farthest point; The angle between a tangent line at any position of the opening and closing portion or a line connecting any position of the opening and closing portion and the end portion and the joint surface is less than or equal to 90°.

3. The box body according to claim 1, characterized in that: The outer surfaces of the side walls of the first shell and the second shell at the opening and closing area are arc-shaped and are transitionally connected with the outer top surfaces of the first shell and the second shell respectively; The groove is formed by splicing two sections of arc surfaces of the first shell side wall and the second shell side wall adjacent to each other; The outer surface contours of the first shell and the second shell are mirror-symmetrical at the side edge ends.

4. The box body according to claim 1, characterized in that: The inner surface of the side wall of the first shell is a closed or open smooth annular cylinder; or The inner wall side surface of the first shell is a closed or open smooth annular inclined surface, the inclined surface extends obliquely from the end to the top surface of the first shell, and the angle between the inclined surface and the joint surface is an acute angle; or The inner surface of the side wall of the first shell is a closed or open smooth curved surface, and the curvature of the curved surface is consistent with the curvature of the outer surface.

5. The box body according to claim 3, characterized in that: The vertical distance between the area of ​​the outer surface of the side wall of the first shell that is farthest from the accommodating cavity and the plane where the joint surface is located is 3-5 mm, and the radius of the arc is 5-6 mm.

6. The box body according to claim 4, characterized in that: The first shell is a transparent shell or a semi-transparent shell, and a plano-convex lens is formed on the outer surface and the inner surface of the side wall.

7. The box body according to claim 1, characterized in that: The box body is used to store electronic equipment; The inner surfaces of the first shell and the second shell are both provided with a plurality of limiting parts, and the plurality of limiting parts constitute a limiting system for the electronic device.

8. The box body according to claim 1, characterized in that: The outer surface of the rotating shaft side and the outer surface of the opening and closing area have different shapes or different surface materials.

9. The box body according to claim 1, characterized in that: The box body further comprises a third side edge and a fourth side edge arranged at two ends, wherein the third side edge and the fourth side edge are both adjacent to the second side edge; The opening and closing area extends from the second side edge to the third side edge and / or the fourth side edge.

10. An earphone box, characterized in that: The earphone box comprises the box body according to any one of claims 1 to 9, and the box body is used to accommodate the earphone.

11. An earphone, characterized in that: The earphone is placed in the earphone box according to claim 10.

12. The earphone according to claim 11, characterized in that The headset comprises a main body, an ear hook and a battery part which are connected in sequence; The earphone comprises a first earphone and a second earphone, wherein the first earphone and the second earphone extend along a joint surface direction of the earphone box and are placed in the earphone box without overlapping.