Sliding arm of a headphone and headphone

Abstract

This utility model provides a sliding arm for a headset and a headset, relating to the field of audio output device technology. The sliding arm of the headset includes a housing, which includes a bottom and a top. The bottom has a first end and a second end at its two ends along its extension direction. The bottom has a plurality of first sliding grooves spaced apart along its extension direction. The top covers the bottom and extends from the first end to the second end of the bottom. The top has a plurality of first sliding protrusions spaced apart along its extension direction. The first sliding protrusions and the first sliding grooves slide in engagement along the extension direction of the bottom. From the first end to the second end, the extension lengths of the plurality of first sliding protrusions and the plurality of first sliding grooves decrease sequentially. The sliding arm and headset provided by this utility model are used to improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of audio output device technology, and in particular to a sliding arm for headphones and headphones. Background Technology

[0002] Over-ear headphones deliver sound by wrapping the ears with the headband and earcups. Their advantages include a wider soundstage, more delicate sound quality, and less pressure on the ear canal and eardrum during long-term wear. From a health perspective, because they do not directly contact the ear canal, they can reduce the risk of hearing damage and are especially suitable for long-term use.

[0003] Currently, there are two assembly methods for the upper and lower shells of the sliding arms of headphones on the market. The first method is to fix them with more than six screws; the second method is to fix them with clips and screws. Both of these assembly methods have relatively low production efficiency. Utility Model Content

[0004] This invention provides a sliding arm for a headset and a headset, which can improve production efficiency.

[0005] The first aspect of this application provides a sliding arm for a headset, including a housing. The housing includes: a bottom, with a first end and a second end at its two ends along its extension direction, the bottom having a plurality of first sliding grooves spaced apart along the extension direction of the bottom; and a cover, which covers the bottom and extends from the first end of the bottom to the second end, the cover having a plurality of first sliding protrusions spaced apart along the extension direction of the cover, the first sliding protrusions slidingly engaging with the first sliding grooves along the extension direction of the bottom; wherein, from the first end to the second end, the extension lengths of the plurality of first sliding protrusions and the extension lengths of the plurality of first sliding grooves decrease sequentially.

[0006] In some embodiments, a sliding cavity is formed between the shell bottom and the shell cover. The end of the first end of the shell bottom and the end of the shell cover are joined together to form an opening communicating with the sliding cavity. The opening is used for a portion of the headband of the headphones to extend into the sliding cavity, so that the headband and the sliding arm can be slidably connected.

[0007] In some embodiments, the end of the first sliding protrusion near the first end is a sliding end, the groove wall of the first sliding groove includes a limiting surface that intersects the extending direction of the first sliding groove, the first sliding groove forms a sliding opening opposite to the limiting surface, the first sliding protrusion slides into the first sliding groove through the sliding opening, and the end face of the sliding end abuts against the limiting surface.

[0008] In some embodiments, the first sliding protrusion protrudes toward the inside of the sliding cavity, and the first sliding groove is recessed toward the inside of the sliding cavity.

[0009] In some embodiments, the cover has a second sliding groove recessed toward the outside of the sliding cavity, and the bottom of the cover has a second sliding protrusion protruding toward the outside of the sliding cavity. The second sliding protrusion and the second sliding groove slide in engagement along the extending direction of the bottom of the cover.

[0010] In some embodiments, the groove wall of the second sliding groove includes at least one surface of the first sliding protrusion, and the groove wall of the first sliding groove includes at least one surface of the second sliding protrusion.

[0011] In some embodiments, the portion of the first sliding protrusion extending into the first sliding groove has a dimension of 0.5mm-2mm in the protruding direction of the first sliding protrusion; and / or, the portion of the second sliding protrusion extending into the second sliding groove has a dimension of 0.5mm-2mm in the protruding direction of the second sliding protrusion.

[0012] In some embodiments, the first sliding protrusion is formed on both sides of the shell cover opposite to each other with respect to its extension direction, and the first sliding groove is formed on both sides of the shell bottom opposite to each other with respect to its extension direction.

[0013] In some embodiments, along the extending direction of the shell cover, the difference in the extension length of adjacent first sliding protrusions is between 0.5mm and 3mm; and / or, along the extending direction of the shell bottom, the difference in the extension length of adjacent first sliding grooves is between 0.5mm and 3mm.

[0014] In some embodiments, the sliding arm further includes at least one fastener, and the second end of the shell bottom is connected to the shell cover via the at least one fastener.

[0015] A second aspect of this application provides a headset, comprising: a headband; two sliding arms of the headset as described in the first aspect, the two sliding arms being slidably connected to both ends of the headband; and two earcups, each of the sliding arms being connected to an earcup at an end away from the headband.

[0016] This utility model provides a sliding arm for a headset, wherein the first sliding protrusion of the cover and the first sliding groove of the bottom of the cover slide in a sliding engagement, which can improve the ease of assembly of the cover and the bottom of the cover. Moreover, when fasteners are used to fix the cover and the bottom of the cover, the number of fasteners used can be reduced, thereby improving assembly efficiency and production efficiency. Furthermore, since the extension lengths of the multiple first sliding protrusions and the extension lengths of the multiple first sliding grooves decrease sequentially from the first end to the second end, during the assembly of the cover towards the bottom of the shell along the direction from the second end to the first end, the first sliding protrusion closest to the first end can be inserted into the first sliding groove closest to the first end first, and then the second first sliding protrusion closest to the first end can be inserted into the second first sliding groove closest to the first end. That is, the first sliding protrusion closest to the first end to the first sliding protrusion closest to the second end are sequentially inserted into their respective first sliding grooves. This continues until the first sliding protrusion closest to the second end is inserted into its corresponding first sliding groove and is in place, at which point the sliding assembly of the cover and the bottom of the shell is completed. This assembly operation is convenient and helps to improve the ease and smoothness of assembly. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of a headset provided in some embodiments of this application;

[0018] Figure 2 This is a three-dimensional exploded structural diagram of a headset provided in some embodiments of this application;

[0019] Figure 3 A three-dimensional structural schematic diagram of the housing of the sliding arm provided in some embodiments of this application;

[0020] Figure 4 Schematic diagram of the exploded structure of the housing of the sliding arm provided in some embodiments of this application Figure 1 ;

[0021] Figure 5 A three-dimensional structural schematic diagram of the shell cover provided in some embodiments of this application;

[0022] Figure 6 Schematic diagram of the exploded structure of the housing of the sliding arm provided in some embodiments of this application Figure 2 ;

[0023] Figure 7 A cross-sectional view of the housing provided in some embodiments of this application, formed by cutting with a plane perpendicular to the extension direction of the housing;

[0024] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0025] Explanation of reference numerals in the attached figures

[0026] 100. Headphones; 10. Sliding arm; 20. Headband; 30. Earcups; 40. Adapter structure; 1. Shell; 110. Opening; 11. Shell bottom; 111. First end; 112. Second end; 113. First sliding groove; 1131. Limiting surface; 1132. Sliding opening; 114. Second sliding protrusion; 12. Shell cover; 121. First sliding protrusion; 122. Second sliding groove; 123. Clearance notch; 13. Fastener. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this utility model will not be described separately.

[0029] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0030] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. The term "connection," unless otherwise specified, includes both direct and indirect connections.

[0031] Over-ear headphones are secured to the user's head with a headband, and the earcups directly contact or cover the ears, enabling close-range sound transmission. Their larger drivers provide a wider soundstage and a more immersive listening experience. The sliding arms of over-ear headphones are key adjustment components connecting the headband and earcups, primarily used to adapt to different head sizes and improve wearing comfort. The production efficiency of the sliding arms directly impacts the overall production efficiency of over-ear headphones; therefore, improving the production efficiency of sliding arms is a problem that needs to be addressed.

[0032] Therefore, embodiments of this application provide a sliding arm for a headset with high production efficiency and a headset.

[0033] Figure 1 A three-dimensional structural schematic diagram of a headset provided in some embodiments of this application; Figure 2 This is a three-dimensional exploded view of a headset provided in some embodiments of this application.

[0034] This application provides a headset 100, such as Figure 1 and Figure 2 As shown, the headphones 100 include a headband 20, earcups 30, and a sliding arm 10 connected between the headband 20 and the earcups 30. The sliding arm 10 is slidably connected to the headband 20, thereby realizing the telescopic adjustment between the headband 20 and the earcups 30 to change the position of the earcups 30 to adapt to different users' head sizes and improve wearing comfort.

[0035] Figure 3 A three-dimensional structural schematic diagram of the housing of the sliding arm provided in some embodiments of this application; Figure 4 Schematic diagram of the exploded structure of the housing of the sliding arm provided in some embodiments of this application Figure 1 ; Figure 5 A three-dimensional structural schematic diagram of the shell cover provided in some embodiments of this application; Figure 6 Schematic diagram of the exploded structure of the housing of the sliding arm provided in some embodiments of this application Figure 2 ; Figure 7 A cross-sectional view of the housing provided in some embodiments of this application, formed by cutting with a plane perpendicular to the extension direction of the housing; Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0036] This application provides a sliding arm 10 for a headset 100, such as... Figures 2 to 5As shown, the sliding arm 10 includes a housing 1, which includes a housing bottom 11 and a housing cover 12 that covers the housing bottom 11. The two ends of the housing bottom 11 along its extension direction are a first end 111 and a second end 112, respectively. The housing bottom 11 has a plurality of first sliding grooves 113 that are spaced apart along the extension direction of the housing bottom 11. The housing cover 12 extends from the first end 111 of the housing bottom 11 to the second end 112. The housing cover 12 has a plurality of first sliding protrusions 121 that are spaced apart along the extension direction of the housing cover 12. The first sliding protrusions 121 and the first sliding grooves 113 slide in cooperation along the extension direction of the housing bottom 11. From the first end 111 to the second end 112, the extension lengths of the plurality of first sliding protrusions 121 decrease sequentially, and the extension lengths of the plurality of first sliding grooves 113 decrease sequentially.

[0037] It should be noted that in the embodiments of this application, "multiple" means two or more.

[0038] For example, both the bottom 11 and the cover 12 extend along an arc.

[0039] Optionally, when worn, the bottom of the case 11 is closer to the head than the cover 12.

[0040] For example, the number of multiple first sliding protrusions 121 and multiple first sliding grooves 113 are the same, and they correspond to each other one by one.

[0041] For example, the corresponding first sliding protrusion 121 and the first sliding groove 113 have the same extension length, where the extension length refers to the dimension in the extension direction.

[0042] It is understood that "the first sliding protrusion 121 and the first sliding groove 113 slide in cooperation along the extending direction of the shell bottom 11" means that the first sliding protrusion 121 and the first sliding groove 113 are in mutual convex-concave cooperation, and the two can slide relative to each other in the extending direction of the shell bottom 11. For example, the extending direction of the first sliding protrusion 121 is consistent with the extending direction of the shell cover 12, the extending direction of the first sliding groove 113 is consistent with the extending direction of the shell bottom 11, and the extending direction of the shell bottom 11 is consistent with the extending direction of the shell cover 12. In this way, the first sliding protrusion 121 and the first sliding groove 113 cooperate, and the two can slide relative to each other in the extending direction of the shell bottom 11.

[0043] In the embodiments of this application, the sliding engagement of the first sliding protrusion 121 and the first sliding groove 113 improves the ease of assembly of the cover 12 and the bottom 11. Furthermore, when fasteners 13 are used to fix the cover 12 and the bottom 11, the number of fasteners 13 used can be reduced, thereby improving assembly efficiency and production efficiency. Additionally, since the extension lengths of the multiple first sliding protrusions 121 and the multiple first sliding grooves 113 decrease sequentially from the first end 111 to the second end 112, during the assembly of the cover 12 towards the bottom 11 along the direction from the second end 112 to the first end 111, the first sliding protrusion 121 closest to the first end 111 can be inserted first into the first sliding groove 113 closest to the first end 111, and then the second first sliding protrusion 121 closest to the first end 111 can be inserted into the first sliding groove 113. The first sliding groove 113 near the first end 111, that is, from the first sliding protrusion 121 closest to the first end 111 to the first sliding protrusion 121 closest to the second end 112, are sequentially inserted into their respective first sliding grooves 113. This continues until the first sliding protrusion 121 closest to the second end 112 is inserted into its corresponding first sliding groove 113 and is in place. The sliding assembly of the cover 12 and the bottom 11 is then completed. This assembly operation is convenient and helps to improve the ease and smoothness of assembly.

[0044] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, a sliding cavity is formed between the bottom shell 11 and the cover shell 12. The end of the first end 111 of the bottom shell 11 and the end of the cover shell 12 are joined together to form an opening 110 that communicates with the sliding cavity. The opening 110 is used for a portion of the headphone headband 20 of the headphone 100 to extend into the sliding cavity so that the headphone headband 20 and the sliding arm 10 can be slidably connected.

[0045] Thus, the sliding arm 10 is slidably connected to the headphone headband 20 via the sliding cavity. Furthermore, the first end 111 of the sliding arm 10 is close to the headphone headband 20, and the second end 112 is away from the headphone headband 20. That is, from the end of the sliding arm 10 close to the headphone headband 20 to the end away from the headphone headband 20, the extension lengths of the multiple first sliding protrusions 121 and the extension lengths of the multiple first sliding grooves 113 decrease sequentially. Therefore, the closer to the headphone headband 20, the longer the engagement length between the first sliding protrusions 121 and the first sliding grooves 113, resulting in a higher connection strength between the bottom shell 11 and the cover shell 12. Since the sliding arm 10 needs to be connected to the headphone headband 20 at this location, a strong structural strength is required. Therefore, this arrangement effectively meets the structural strength requirements of the sliding arm 10 and improves the structural reliability of the headphone 100.

[0046] In some embodiments of this application, such as Figure 5 and Figure 6 As shown, the end of the first sliding protrusion 121 near the first end 111 is the sliding end. The groove wall of the first sliding groove 113 includes a limiting surface 1131 that intersects the extending direction of the first sliding groove 113. The first sliding groove 113 forms a sliding opening 1132 opposite to the limiting surface 1131. The first sliding protrusion 121 slides into the first sliding groove 113 through the sliding opening 1132, and the end face of the sliding end abuts against the limiting surface 1131.

[0047] It is understandable that intersections include perpendicular intersections.

[0048] During the assembly of the sliding arm 10, the first sliding protrusion 121 enters the first sliding groove 113 through the sliding opening 1132 at its sliding end until the end face of the sliding end abuts against the limiting surface 1131 of the first sliding groove 113. Then the first sliding protrusion 121 slides into place. In this way, the limiting surface 1131 of the first sliding groove 113 serves as a positioning reference for the sliding direction, controlling the final assembly position and improving the accuracy of assembly. Moreover, the limiting surface 1131 constrains the assembled first sliding protrusion 121, improving the connection reliability between the cover 12 and the bottom 11.

[0049] In some embodiments of this application, such as Figure 5 and Figure 6 As shown, the first sliding protrusion 121 protrudes towards the inside of the sliding cavity, and the first sliding groove 113 is recessed towards the inside of the sliding cavity.

[0050] Thus, the first sliding protrusion 121 and the first sliding groove 113 are both arranged facing inward, which can reduce the space occupied by the outward arrangement, which is conducive to the compactness of the sliding arm 10 and to miniaturization. In addition, it makes the concave-convex fit less likely to be exposed, improving the aesthetics of the appearance.

[0051] In some embodiments of this application, such as Figure 5 and Figure 6 As shown, the cover 12 has a second sliding groove 122 recessed towards the outside of the sliding cavity, and the bottom 11 has a second sliding protrusion 114 protruding towards the outside of the sliding cavity. The second sliding protrusion 114 and the second sliding groove 122 slide together along the extending direction of the bottom 11.

[0052] In this way, the bottom 11 and the cover 12 are slidably engaged by the first sliding protrusion 121 and the first sliding groove 113, and also by the second sliding groove 122 and the second sliding protrusion 114, thereby improving the reliability of the connection between the bottom 11 and the cover 12.

[0053] In some embodiments of this application, such as Figures 5 to 8 As shown, the groove wall of the second sliding groove 122 includes at least one surface of the first sliding protrusion 121, and the groove wall of the first sliding groove 113 includes at least one surface of the second sliding protrusion 114.

[0054] For example, a second sliding groove 122 is formed between the first sliding protrusion 121 and the inner surface of the cover 12. A first sliding groove 113 is formed between the second sliding protrusion 114 and the surface of the bottom 11.

[0055] Thus, the second sliding groove 122 is disposed adjacent to the first sliding protrusion 121, and one surface of the first sliding protrusion 121 serves as one sidewall of the second sliding groove 122. The second sliding protrusion 114 is disposed adjacent to the first sliding groove 113, and one surface of the second sliding protrusion 114 serves as one sidewall of the first sliding groove 113. The first sliding protrusion 121 and the first sliding groove 113 cooperate, and the second sliding groove 122 and the second sliding protrusion 114 cooperate, so that the bottom of the shell 11 and the cover of the shell 12 are interlocked together, improving the connection reliability between the bottom of the shell 11 and the cover of the shell 12.

[0056] In some embodiments of this application, such as Figure 8 As shown, the portion of the first sliding protrusion 121 extending into the first sliding groove 113 has a dimension L1 of 0.5mm-2mm in the protruding direction of the first sliding protrusion 121; and / or, the portion of the second sliding protrusion 114 extending into the second sliding groove 122 has a dimension L2 of 0.5mm-2mm in the protruding direction of the second sliding protrusion 114.

[0057] For example, the portion of the first sliding protrusion 121 extending into the first sliding groove 113 can have dimensions in the protruding direction of the first sliding protrusion 121 that are, but are not limited to, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, or 2mm. Similarly, the portion of the second sliding protrusion 114 extending into the second sliding groove 122 can have dimensions in the protruding direction of the second sliding protrusion 114 that are, but are not limited to, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, or 2mm.

[0058] Thus, by limiting the size of the portion of the first sliding protrusion 121 extending into the first sliding groove 113 in the protruding direction of the first sliding protrusion 121 to 0.5mm-2mm, and limiting the size of the portion of the second sliding protrusion 114 extending into the second sliding groove 122 in the protruding direction of the second sliding protrusion 114 to 0.5mm-2mm, the engagement amount between the first sliding protrusion 121 and the second sliding protrusion 114 is controlled within a relatively large range, which meets the connection strength requirements between the bottom of the shell 11 and the cover of the shell 12, and also ensures that the engagement amount between the two is not too large and occupies too much space, which is conducive to saving space.

[0059] For example, such as Figure 8 As shown, the inner wall of the first sliding groove 113 opposite to the second sliding protrusion 114 extends beyond the second sliding protrusion 114 in the protruding direction of the first sliding protrusion 121. That is, the sidewall of the second sliding protrusion 114 is a relatively shorter groove sidewall of the first sliding groove 113, and the dimension of the sidewall of the second sliding protrusion 114 in its extending direction determines the depth of the first sliding groove 113. Similarly, the inner wall of the second sliding groove 122 opposite to the first sliding protrusion 121 extends beyond the first sliding protrusion 121 in the protruding direction of the second sliding protrusion 114. That is, the sidewall of the first sliding protrusion 121 is a relatively shorter groove sidewall of the second sliding groove 122, and the dimension of the sidewall of the first sliding protrusion 121 in its extending direction determines the depth of the second sliding groove 122. The protrusion directions of the first sliding protrusion 121 and the second sliding protrusion 114 are opposite, that is, the protrusion directions of the first sliding protrusion 121 and the second sliding protrusion 114 are 180 degrees apart. In this case, the dimension L1 of the part of the first sliding protrusion 121 extending into the first sliding groove 113 in the protrusion direction of the first sliding protrusion 121 is equal to the dimension L2 of the part of the second sliding protrusion 114 extending into the second sliding groove 122 in the protrusion direction of the second sliding protrusion 114.

[0060] In some embodiments of this application, such as Figure 5 and Figure 6 As shown, the bottom of the shell 11 has a first sliding groove 113 formed on both sides opposite to each other in the direction of extension, and the cover 12 has a first sliding protrusion 121 formed on both sides opposite to each other in the direction of extension.

[0061] This configuration improves the reliability of the connection between the bottom shell 11 and the cover shell 12. Furthermore, when fasteners 13 are used to fix the cover shell 12 and the bottom shell 11, the number of fasteners 13 used can be further reduced, thereby improving assembly efficiency and production efficiency.

[0062] For example, the bottom of the shell 11 has a first sliding groove 113 formed on each of its two opposite edges with respect to its extension direction. The first sliding grooves 113 on the two sides are recessed towards each other. The cover of the shell 12 has a first sliding protrusion 121 formed on each of its two opposite edges with respect to its extension direction. The first sliding protrusion 121 on the two sides are protruding towards each other. In this way, when the first sliding protrusion 121 and the first sliding groove 113 are in sliding engagement, the relative movement of the bottom of the shell 11 and the cover of the shell 12 in the opposite directions of the two sides of the bottom of the shell 11 is constrained, further improving the connection reliability between the bottom of the shell 11 and the cover of the shell 12.

[0063] For example, the bottom of the shell 11 has a second sliding protrusion on each of its opposite sides with respect to its extension direction, and the cover 12 has a second sliding groove 122 on each of its opposite sides with respect to its extension direction.

[0064] In some embodiments of this application, such as Figure 5 and Figure 6 As shown, along the extending direction of the cover 12, the difference in the extension length of adjacent first sliding protrusions 121 is between 0.5mm and 3mm; and / or, along the extending direction of the bottom 11, the difference in the extension length of adjacent first sliding grooves 113 is between 0.5mm and 3mm.

[0065] It is understandable that the extension length refers to the dimension in the direction of extension. For example, when extending along a straight line, the extension length is the dimension along the straight line, and when extending along a curve, the extension length is the dimension along the curve.

[0066] For example, along the extending direction of the cover 12, the difference in the extension length of adjacent first sliding protrusions 121 can be, but is not limited to, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, or 3mm. Along the extending direction of the bottom of the shell 11, the difference in the extension length of adjacent first sliding grooves 113 can be, but is not limited to, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, and 3mm.

[0067] This configuration allows the longer first sliding protrusion 121 to be inserted into the first sliding groove 113 for a sufficient length before the adjacent shorter first sliding protrusion 121 is inserted into the first sliding groove 113. This improves the stability of the assembly process and prevents the difference in extension length from being too large, which would result in a large difference in connection strength between the cover 12 and the bottom 11 at different locations and affect the structural strength of the shell 1.

[0068] In some embodiments of this application, such as Figure 3 and Figure 4 As shown, the sliding arm 10 also includes at least one fastener 13, and the second end 112 of the bottom of the housing 11 is connected to the cover 12 via at least one fastener 13.

[0069] For example, fastener 13 includes bolts, nuts, screws, rivets, etc.

[0070] For example, the second end 112 of the shell bottom 11 is fixedly connected to the end of the shell cover 12 near the second end 112 by two screws.

[0071] For example, the end of the cover 12 near the second end 112 is formed with a clearance notch 123 for connection with the ear cup 30, and the cover 12 is connected to the second end 112 of the bottom of the shell 11 by at least one fastener 13 on each side of the clearance notch 123.

[0072] This application provides a headset 100, such as Figure 1 and Figure 2 As shown, it includes a headphone headband 20 and two sliding arms 10 of the headphones 100 provided in any of the above embodiments. The two sliding arms 10 are slidably connected to both ends of the headphone headband 20, and each sliding arm 10 is connected to an earcup 30 at the end away from the headphone headband 20.

[0073] Since the assembly efficiency of the sliding arm 10 of the headset 100 provided in any of the above embodiments is high, the assembly efficiency of the headset 100 including the sliding arm 10 is high.

[0074] In some embodiments of this application, such as Figure 2 As shown, the end of the sliding arm 10 away from the headband 20 is connected to the earcup 30 through the adapter structure 40, so that the earcup 30 can be adjusted relative to the headband 20. The specific structure of the adapter structure 40 can be referred to the prior art, and will not be described in detail here.

[0075] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A sliding arm for headphones, characterized in that, Includes a housing, the housing comprising: The bottom of the shell has a first end and a second end at its two ends along its extension direction, and the bottom of the shell is formed with a plurality of first sliding grooves spaced apart along the extension direction of the bottom of the shell. A cover that fits over the bottom of the shell and extends from the first end of the bottom of the shell to the second end. The cover has a plurality of first sliding protrusions spaced apart along the extension direction of the cover. The first sliding protrusions and the first sliding grooves slide in engagement along the extension direction of the bottom of the shell. From the first end to the second end, the extension lengths of the plurality of first sliding protrusions decrease sequentially, and the extension lengths of the plurality of first sliding grooves decrease sequentially.

2. The sliding arm of the headset according to claim 1, characterized in that, A sliding cavity is formed between the bottom of the shell and the cover. The end of the first end of the bottom of the shell and the end of the cover are joined together to form an opening communicating with the sliding cavity. The opening is used to allow a portion of the headband of the headphones to extend into the sliding cavity, so that the headband and the sliding arm can be slidably connected.

3. The sliding arm of the headset according to claim 2, characterized in that, The end of the first sliding protrusion near the first end is the sliding insertion end. The groove wall of the first sliding groove includes a limiting surface that intersects the extending direction of the first sliding groove. The first sliding groove has a sliding opening opposite to the limiting surface. The first sliding protrusion slides into the first sliding groove through the sliding opening, and the end face of the sliding end abuts against the limiting surface.

4. The sliding arm of the headset according to claim 3, characterized in that, The first sliding protrusion protrudes towards the inside of the sliding cavity, and the first sliding groove is recessed towards the inside of the sliding cavity.

5. The sliding arm of the headset according to claim 4, characterized in that, The cover has a second sliding groove recessed towards the outside of the sliding cavity, and the bottom of the cover has a second sliding protrusion protruding towards the outside of the sliding cavity. The second sliding protrusion and the second sliding groove slide together along the extending direction of the bottom of the cover.

6. The sliding arm of the headset according to claim 5, characterized in that, The groove wall of the second sliding groove includes at least one surface of the first sliding protrusion, and the groove wall of the first sliding groove includes at least one surface of the second sliding protrusion.

7. The sliding arm of the headset according to claim 6, characterized in that, The portion of the first sliding protrusion extending into the first sliding groove has a dimension of 0.5mm-2mm in the protruding direction of the first sliding protrusion; and / or The portion of the second sliding protrusion extending into the second sliding groove has a dimension of 0.5mm-2mm in the protruding direction of the second sliding protrusion.

8. The sliding arm of the headphones according to any one of claims 1 to 7, characterized in that, The first sliding protrusion is formed on both sides of the shell cover opposite to each other in its extension direction, and the first sliding groove is formed on both sides of the shell bottom opposite to each other in its extension direction.

9. The sliding arm of the headphones according to any one of claims 1 to 7, characterized in that, Along the extending direction of the shell cover, the difference in the extension length of adjacent first sliding protrusions is between 0.5mm and 3mm; and / or Along the extending direction of the bottom of the shell, the difference in the extension length of adjacent first sliding grooves is between 0.5mm and 3mm.

10. The sliding arm of the headphones according to any one of claims 3 to 7, characterized in that, The sliding arm further includes at least one fastener, and the second end of the shell bottom is connected to the shell cover via the at least one fastener.

11. A type of over-ear headphone, characterized in that, include: Headphone headband; Two sliding arms for a headset as described in any one of claims 1 to 10, the two sliding arms being slidably connected to both ends of the headband of the headset; Two earcups, each connected to one of the earcups at the end of the sliding arm away from the headband of the headphones.

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