A multi-joint arm adaptive headphone

Abstract

The utility model provides a multi-joint arm adaptive head-mounted headset, comprising a head-mounted structure, a multi-joint arm, an earphone shell and electronic components arranged in the earphone shell; the multi-joint arm comprises a sheet body, a connecting rod, a main rod, a hollow fastener, a rotating rod, and a movable shell, and has multiple rotating joints, and the joints have rotational damping, and the straight-line distance from the start end to the end of the whole is changed by the rotation of the joints, and the overall bending angle is adjusted according to different head sizes, so that it can adapt to different head sizes, and cooperate with the elastic head-mounted structure. When worn on the head, the head-mounted structure is stretched open, thereby generating lateral tensioning force, which is transmitted to the earphone shell through the multi-joint arm, so that the earphone shell is kept in close contact with the ear, and the distance from the sound emitted by the sound unit to the ear is kept stable, so as to obtain a stable listening effect, and at the same time it is more convenient and comfortable in long-term wearing or sleeping scenarios.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones, in particular to a multi-joint arm adaptive head-mounted earphone. Background Art

[0002] Headphones play a very important role in people's life and production process. From wired in-ear headphones, TWS headphones, bone conduction headphones to OWS headphones, the design of headphones has been updated and iterated, and is constantly developing towards better comfort and stability.

[0003] However, these headphones have always relied on the support of the concha or auricle when worn, which causes a feeling of earplug or pressure on the auricle, and it is easy to cause pain when worn for a long time. In the field of sleep, people have particularly high requirements for the comfort of headphones. The structure of traditional headphones determines that it is difficult to balance comfort and wearing stability. On the one hand, if the headphones are to be worn stably, they need to rely more on the support of the concha or auricle, and the force is mutual, which will inevitably cause the headphones to produce more pressure on the ears. On the other hand, for the sake of wearing comfort, the headphones are required to exert as little pressure on the concha or auricle as possible, which will inevitably lead to a small support force for wearing the headphones, making the headphones easy to fall off during use.

[0004] The support force of bone conduction headphones comes from the support of the auricle on the one hand, and from the static friction in front of the ear on the other hand, which makes bone conduction headphones more comfortable than ordinary in-ear headphones. Since bone conduction headphones require lateral pressure to maintain contact with the bones in front of the ear, they inevitably adopt a half-head ring structure with a tensioning effect, but this structure will cause trouble when sleeping. Because the half-head ring of the bone conduction headphones located at the back of the head needs to adapt to more people, it generally has size redundancy after wearing, and it is not affected by normal wearing. However, when sleeping on your back, the redundant part will be squeezed, causing the headphones to move forward, causing a strong sense of discomfort when wearing. Moreover, the bone conduction position of the bone conduction headphones changes, and it is not in the most suitable position in front of the ear for sound transmission, which seriously affects the user experience. In addition, the support structure of the bone conduction headphones is made of hard material, which is uncomfortable when worn for a long time or in sleeping scenarios.

[0005] Headphones generally use earmuffs to cover the ears when worn. Headphones are large in size, and the earmuffs press on the ears or clamp the ears on both sides of the head, which will cause strong discomfort and ear pain over time. In addition, since headphones are generally large in size, it is not convenient to lie flat or turn over when sleeping. Utility Model Content

[0006] The purpose of the utility model is to provide a head-mounted headphone structure supported by a multi-joint arm in response to the deficiencies in the above-mentioned background technology, so that the headphone no longer relies on the support of the concha cavity or the auricle, and can adaptively maintain a good fit in front of the ear at different wearing angles, so as to provide a comfort experience that is completely different from that of previous headphones.

[0007] In order to achieve the above-mentioned object, the utility model provides a multi-joint arm adaptive headset, comprising a headset structure, a multi-joint arm, a headset housing, and electronic components arranged in the headset housing;

[0008] The multi-joint arm comprises a sheet, a connecting rod, a main rod, a hollow fastener, and a rotating rod; the sheet is used to connect the SD card, the two ends of the connecting rod are respectively hinged to the sheet and the first end of the main rod, the hollow fastener is arranged at the second end of the main rod, the hollow fastener is movably connected to the first end of the rotating rod, and the second end of the rotating rod is rotatably connected to the earphone housing;

[0009] The SD card is arranged on the head-mounted structure. The head-mounted structure is an elastic structure and is in an inwardly bent state by default. When the head-mounted structure is worn on the head, it is stretched open to generate lateral tension, and the tension is transmitted to the earphone shell through the multi-joint arm.

[0010] Furthermore, a limiting block is arranged in the hollow fastener, and a limiting groove is arranged at the first end of the rotating rod, and the limiting block cooperates with the limiting groove to limit the angle adjustment range of the rotating rod.

[0011] Furthermore, it also includes a movable shell, a three-way connector and a latch, the second end of the rotating rod is inserted into one of the mounting holes of the three-way connector and fixedly connected, the other two mounting holes of the three-way connector are aligned and connected to the pin holes of the movable shell through the latch, so that the movable shell can rotate relative to the three-way connector, and the rotation axis is orthogonal to the central axis of the rotating rod, and the movable shell is rotatably connected to the earphone shell.

[0012] Furthermore, the movable shell is provided with a top ball, and the matching position of the three-way connector and the movable shell is provided with a top ball limiting hole corresponding to the top ball, so that the movable shell is damped when rotating relative to the three-way connector and rotates a preset angle each time.

[0013] Furthermore, the earphone housing includes an earphone bottom shell and an earphone surface shell, and the earphone bottom shell and the earphone surface shell are fixedly connected by sealant or ultrasonic welding.

[0014] Furthermore, tooth surfaces that cooperate with each other are provided between the earphone bottom shell and the movable shell, so that the rotation damping between the earphone bottom shell and the movable shell is increased and can be maintained after being rotated into place.

[0015] Furthermore, a limiting structure is provided on the movable shell, and the limiting structure is used to limit the rotation range of the earphone bottom shell relative to the movable shell.

[0016] Furthermore, the second end of the rotating rod is connected to the earphone shell through a ball head, the earphone shell is protrudingly provided with a connecting cavity for receiving the ball head, the outer surface of the connecting cavity is provided with an external thread, and the connecting cavity is equipped with an adjusting nut, and the adjusting nut can tighten the connecting cavity.

[0017] The above solution of the utility model has the following beneficial effects:

[0018] The multi-joint arm adaptive headphone provided by the utility model has a plurality of rotating joints, and the joints have rotating damping. The straight-line distance from the start end to the end of the whole is changed by rotating the joints, and the overall bending angle is adjusted according to different head sizes, so that it can adapt to different head sizes. With the elastic head-mounted structure, when worn on the head, the head-mounted structure is stretched open, thereby generating lateral tensioning force, which is transmitted to the headphone shell through the multi-joint arm, so that the headphone shell and the ear are kept in close contact, and the distance from the sound emitted by the sound unit to the ear is kept stable, so that the user can obtain a stable listening effect during use. At the same time, this method significantly reduces the support force required by the earphone to rely on the concha cavity or the auricle, and no earmuffs are provided, which is more convenient and comfortable in long-term wearing or sleeping scenarios.

[0019] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal connection of the hollow fastener of Example 1 of the utility model;

[0022] Figure 3 This is a schematic diagram of the connection between the movable housing and the three-way connector of Example 1 of the utility model;

[0023] Figure 4 This is a schematic diagram of the connection between the earphone bottom shell and the movable shell in Example 1 of the utility model;

[0024] Figure 5 Schematic diagram of different forms of earphone housings of the present invention;

[0025] Figure 6 This is a schematic diagram of the overall structure of Example 2 of the utility model;

[0026] Figure 7 This is a schematic diagram of the connection between the ball head and the connecting cavity in Example 2 of the utility model.

[0027] [Description of Reference Numerals]

[0028] 1- sheet body; 2- connecting rod; 3- main rod; 4- hollow fastener; 5- rotating rod; 6- three-way connector; 7- latch; 8- movable shell; 9- earphone bottom shell; 10- earphone surface shell; 11- SD card; 12- limit block; 13- limit groove; 14- top ball; 15- top ball limit hole; 16- tooth surface; 17- ball head; 18- connecting cavity; 19- adjusting nut. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings below. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0034] Embodiment 1:

[0035] like Figure 1 As shown, the embodiment 1 of the utility model provides a multi-joint arm adaptive headphone, comprising a sheet 1, a connecting rod 2, a main rod 3, a hollow fastener 4, a rotating rod 5, a three-way connector 6, a latch 7, a movable housing 8, and an earphone housing composed of an earphone bottom shell 9 and an earphone surface shell 10. The sheet 1 is used to connect an SD card 11 (or a TF card), and specifically, the SD card 11 has positioning holes at four diagonal positions, and the positioning block at the first end of the sheet 1 is positioned through the positioning holes, and is assembled on the sheet 1 by hot melting and bonding to form a fixed connection.

[0036] The two ends of the connecting rod 2 are respectively hinged to the second end of the sheet body 1 and the first end of the main rod 3, and can be rotated to adjust the angle. The rotation is achieved by means of screws and nuts or movable rivets. Therefore, the connecting rod 2 can rotate relative to the sheet body 1, and the main rod 3 can also rotate relative to the connecting rod 2. A hollow fastener 4 is provided at the second end (integrated) of the main rod 3. The hollow fastener 4 is movably connected to the first end of the rotating rod 5. There is a clearance fit inside the hollow fastener 4, and the rotating rod 5 can rotate relative to the central axis of the main rod 3. At the same time, Figure 2 As shown, in this embodiment, a limit block 12 is provided in the hollow fastener 4, and a limit slot 13 is provided at the first end of the rotating rod 5. The angle adjustment range of the rotating rod 5 is limited by the cooperation between the limit block 12 and the limit slot 13.

[0037] The second end of the rotating rod 5 is connected to the three-way connector 6, and the specific connection method can be threaded connection or bonding, that is, the second end of the rotating rod 5 is inserted into one of the mounting holes of the three-way connector 6. The other two corresponding mounting holes of the three-way connector 6 are aligned, and connected with the pin hole of the movable housing 8 through the latch 7, so that the movable housing 8 can rotate relative to the three-way connector 6, and the rotation axis is orthogonal to the central axis of the rotating rod 5 and the main rod 3. Specifically, the latch 7 is pressed into the aligned mounting hole of the three-way connector 6 by vertical riveting, and the end of the latch 7 is interference fit with the pin hole of the movable housing 8 by embossing technology, thereby ensuring that the connection between the latch 7 and the movable housing 8 is firm and reliable.

[0038] At the same time, top beads 14 are implanted on both sides of the movable shell 8, and top bead limiting holes 15 are left at the matching positions between the side walls of the three-way connector 6 and the movable shell 8. Figure 3 As shown, the movable housing 8 is damped when rotating relative to the three-way connector 6 and the rotation angle is 6° each time, which is convenient for the user to perform nearly stepless adjustment and can be maintained after the adjustment is in place.

[0039] The movable housing 8 is rotatably connected to the earphone bottom housing 9, and the earphone bottom housing 9 can rotate relative to the movable housing 8. Figure 4 As shown, a tooth surface 16 that cooperates with each other is also provided between the earphone bottom shell 9 and the movable shell 8, so that the rotation damping between the earphone bottom shell 9 and the movable shell 8 is increased, and the rotation can be maintained after being rotated to the right position. In addition, a limiting structure is also provided on the movable shell 8, and the rotation range of the earphone bottom shell 9 relative to the movable shell 8 is limited to 175 degrees by the limiting structure.

[0040] The earphone bottom shell 9 and the earphone surface shell 10 are fixedly connected by sealant or ultrasonic welding. The earphone housing composed of the earphone bottom shell 9 and the earphone surface shell 10 is provided with a sound unit and all other necessary electronic components to realize basic earphone functions such as answering calls and playing audio. It should be noted that the shape of the earphone housing is as follows Figure 5 As shown, the above-mentioned types include but are not limited to the ear-attaching type (a), the in-ear type (b), the open type (c), etc., and the size of the sound unit cavity can be made smaller, that is, smaller than the ear cavity size of the target population, thereby avoiding the feeling of ear plugging or pressure on the ear. And because the sound unit cavity is located in the ear cavity, by making full use of the space of the ear cavity, the sound unit is accommodated without protruding from the ear to cause pressure when sleeping on the side.

[0041] It should be noted that in this embodiment, the SD card 11 (or TF card) is arranged on the head-mounted structure (wireless communication is preferably adopted with the electronic components inside the earphone shell), and the head-mounted structure is an elastic structure, which is in an inwardly bent state by default. When worn on the head, the head-mounted structure is stretched open, thereby generating lateral tension. The tension is transmitted to the earphone shell through the multi-joint arm, so that the earphone shell is kept in contact with the ear, and the distance from the sound emitted by the sound unit to the ear is kept stable, so that the user can obtain a stable listening effect during use. At the same time, this method significantly reduces the support force required by the earphone with the help of the concha cavity or the auricle, and no earmuffs are provided, which is more convenient and comfortable in long-term wear or sleeping scenarios.

[0042] At the same time, the multi-joint arm adaptive headset provided in this embodiment has multiple rotation joints, and the joints have rotation damping (except for those mentioned above, the damping of other joints can adopt elastic holding structures, magnetic holding structures, etc.). The straight-line distance from the overall starting end to the end is changed by rotating the joints, and the overall bending angle is adjusted according to different head sizes, so that it can adapt to different head sizes.

[0043] Embodiment 2:

[0044] like Figure 6 , Figure 7As shown, Embodiment 2 of the present utility model provides another articulated arm adaptive headset, which is mainly different from Embodiment 1 in that the connection method of the headset bottom shell is different. In this embodiment, the second end of the rotating rod 5 is connected to the headset bottom shell 9 through the ball head 17. Specifically, the headset bottom shell 9 is protrudingly provided with a connecting cavity 18 for receiving the ball head, and the outer surface of the connecting cavity 18 is provided with an external thread. Through the matching adjusting nut 19, it is first inserted into the second end of the rotating rod 5 before installation, and then the ball head 17 at the second end of the rotating rod 5 is inserted into the connecting cavity 18, and the adjusting nut 19 is turned to close the connecting cavity 18. The damping is adjusted by the degree of tightening by hand, so that the headset bottom shell 9 can be adjusted steplessly on the ball head 17.

[0045] The inventive concept and beneficial effects of Example 2 of the present utility model are similar to those of Example 1 and will not be described in detail here.

[0046] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A multi-jointed arm adaptive headset, characterized in that: It includes a head-mounted structure, a multi-joint arm, an earphone housing, and electronic components arranged in the earphone housing; The multi-jointed arm comprises a sheet (1), a connecting rod (2), a main rod (3), a hollow fastener (4), and a rotating rod (5); the sheet (1) is used to connect the SD card (11); the two ends of the connecting rod (2) are respectively hinged to the sheet (1) and the first end of the main rod (3); the hollow fastener (4) is arranged at the second end of the main rod (3); the hollow fastener (4) is movably connected to the first end of the rotating rod (5); and the second end of the rotating rod (5) is rotatably connected to the earphone housing; The SD card is arranged on the head-mounted structure. The head-mounted structure is an elastic structure and is in an inwardly bent state by default. When the head-mounted structure is worn on the head, it is stretched open to generate lateral tension, and the tension is transmitted to the earphone shell through the multi-joint arm.

2. The multi-joint arm adaptive headset according to claim 1, characterized in that: A limit block (12) is arranged inside the hollow fastener (4), a limit slot (13) is arranged at the first end of the rotating rod (5), and the limit block (12) cooperates with the limit slot (13) to limit the angle adjustment range of the rotating rod (5).

3. The multi-jointed arm adaptive headset according to claim 1, characterized in that: It also includes a movable shell (8), a three-way connector (6) and a latch (7), wherein the second end of the rotating rod (5) is inserted into one of the mounting holes of the three-way connector (6) and fixedly connected, and the other two mounting holes of the three-way connector (6) are aligned and connected to the pin hole of the movable shell (8) through the latch (7), so that the movable shell (8) can rotate relative to the three-way connector (6), and the rotation axis is orthogonal to the central axis of the rotating rod (5), and the movable shell (8) is rotationally connected to the earphone shell.

4. The multi-joint arm adaptive headset according to claim 3, characterized in that: The movable housing (8) is provided with a top ball (14), and a top ball limiting hole (15) corresponding to the top ball (14) is provided at the matching position between the three-way connecting piece (6) and the movable housing (8), so that the movable housing (8) is damped when rotating relative to the three-way connecting piece (6) and rotates by a preset angle each time.

5. The multi-jointed arm adaptive headset according to claim 3, characterized in that: The earphone housing comprises an earphone bottom shell (9) and an earphone surface shell (10), and the earphone bottom shell (9) and the earphone surface shell (10) are fixedly connected by means of sealant or ultrasonic welding.

6. The multi-jointed arm adaptive headset according to claim 5, characterized in that: Mutually matched tooth surfaces (16) are also provided between the earphone bottom shell (9) and the movable shell (8) so as to increase the rotation damping between the earphone bottom shell (9) and the movable shell (8) and maintain the rotation after being in place.

7. The multi-jointed arm adaptive headset according to claim 5, characterized in that: A limiting structure is provided on the movable shell (8), and the limiting structure is used to limit the rotation range of the earphone bottom shell (9) relative to the movable shell (8).

8. The multi-jointed arm adaptive headset according to claim 1, characterized in that: The second end of the rotating rod (5) is connected to the earphone housing via a ball head (17); the earphone housing is protrudingly provided with a connecting cavity (18) for receiving the ball head (17); the outer surface of the connecting cavity (18) is provided with an external thread; the connecting cavity (18) is matched with an adjusting nut (19); the adjusting nut (19) can tighten the connecting cavity (18).

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