Elastic sheet structure for bone conduction earphone

Abstract

The utility model relates to the technical field of bone conduction sound production, and particularly discloses an elastic sheet structure for a bone conduction earphone, which comprises a vibration sheet, the vibration sheet comprises an inner ring frame body and an outer ring frame body matched with the inner ring frame body for use, the outer ring frame body is in an annular runway shape, and the inner ring frame body is positioned inside the outer ring frame body; the elastic arm is used for connecting the inner ring frame body and the outer ring frame body, an elastic piece formed by the inner ring frame body, the outer ring frame body and the elastic arm at least has one symmetry axis, and the inner ring frame body and / or the outer ring frame body are / is provided with a positioning part used for limiting an external first bearing piece / connecting the vibrating reed. According to the bone conduction earphone blank, the positioning part is arranged on the bone conduction earphone blank, so that the stable position of the vibration piece in the vibration process can be ensured, the positioning part can be used for limiting and connecting an external first bearing piece, the connection stability of the vibration piece and external equipment is effectively improved, and meanwhile, the vibration piece can be arranged on the bone conduction earphone blank.

Description

Technical Field

[0001] The utility model relates to the technical field of bone conduction sound generation, and in particular discloses a shrapnel structure for a bone conduction earphone. Background Art

[0002] Bone conduction is a way of sound conduction, which converts sound into mechanical vibrations of different frequencies and transmits sound waves through the human skull, bony labyrinth, inner ear lymph, spiral organ, and auditory center. Headphones made with bone conduction sound technology are called bone conduction headphones. The conduction of their sound waves is different from ordinary in-ear headphones. It does not require the vibration of the eardrum, but is directly transmitted to the auditory nerve through the bones, which not only improves comfort and protects the user's hearing, but also enables the user to directly hear external sounds. It has its unique advantages.

[0003] At present, the core component of the existing bone conduction earphone speaker, the shrapnel, needs to be improved due to its unreasonable structural design. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies of the prior art in terms of low practicality, the utility model aims to provide a shrapnel structure for a bone conduction earphone.

[0005] To achieve the above-mentioned purpose, the utility model provides a spring piece structure for bone conduction headphones, including a vibrating plate, the vibrating plate including an inner ring frame and an outer ring frame used in conjunction with the inner ring frame, the outer ring frame being in the shape of a circular runway, and the inner ring frame being located inside the outer ring frame; and also including an elastic arm for connecting the inner ring frame and the outer ring frame, the spring piece formed by the inner ring frame, the outer ring frame and the elastic arm having at least one symmetry axis, a gap being present between the inner ring frame and the outer ring frame, the elastic arm being located in the gap / part of the elastic arm being located in the gap, and a positioning portion for limiting the external first bearing member / connecting the vibrating plate being provided on the inner ring frame and / or the outer ring frame.

[0006] Preferably, the inner ring frame is provided with a first positioning portion for limiting the inner ring frame, which can better increase the stability of the spring structure.

[0007] Preferably, the first positioning portion includes two second grooves opened on the inner ring frame, and the second grooves can provide more stable support to ensure that the inner ring frame will not shake or loosen during installation or use, thereby improving the stability and reliability of the product. At the same time, the two second grooves can be used to accurately position the inner ring frame to ensure its correct position and direction, thereby ensuring that the product can achieve the expected effect when used and is more convenient to install.

[0008] Preferably, the second groove body is opened at both ends of the inner ring frame in the length direction, and the diameter of the second groove body is 1.45mm-1.55mm. By opening the second groove body at both ends of the inner ring frame respectively, balanced support for the inner ring frame can be achieved, thereby effectively dispersing pressure, reducing stress concentration, and reducing the risk of deformation and damage of the inner ring frame.

[0009] Preferably, the outer ring frame is provided with a second positioning portion, and the second positioning portion is used to cooperate with the first positioning portion to improve the stability of the outer ring frame.

[0010] Preferably, the second positioning portion includes a first groove body opened on the outer ring frame, and the first groove body is symmetrically arranged along the symmetry axis of the outer ring frame. The symmetrical arrangement of the first groove body along the symmetry axis of the outer ring frame can ensure that the inner ring frame can be accurately positioned during installation and maintain symmetry, so that the product maintains a stable position during use. At the same time, the symmetrically arranged first groove body can achieve balanced support, disperse the weight and pressure of the inner ring frame / outer ring frame, reduce stress concentration, and reduce the risk of deformation and breakage.

[0011] Preferably, there are six first slot bodies, which are divided into two groups. The two groups of first slot bodies are parallel and symmetrically arranged along the symmetry axis of the outer ring frame.

[0012] Preferably, the vibration plate is made of stainless steel, which is non-toxic and harmless, meets environmental protection requirements, does not produce harmful substances, ensures the safety and health of the product, and has high strength and corrosion resistance.

[0013] Preferably, the length of the vibration plate is 16.77 mm-16.83 mm, the thickness of the vibration plate is 0.148 mm-0.152 mm, and the width of the vibration plate is 8.57 mm-8.63 mm.

[0014] Preferably, a metal coating is provided on the surface of the vibration plate, and the metal coating is used to prevent the vibration plate from rusting and improve the wear resistance of the vibration plate.

[0015] Preferably, the elastic arm is an arc-shaped section with a corner, and the connection between the elastic arm and the inner ring frame and the outer ring frame is set with a natural rounded corner.

[0016] The beneficial effects of the utility model: the annular track shape of the outer ring frame and the design of the elastic arm can increase the stability and balance of the vibration plate, which helps to ensure that the vibration plate maintains a stable position during vibration and improves the performance of the earphone. The design of the positioning part can be used to limit and connect the first external carrier, which effectively increases the connection stability between the vibration plate and the external device, and also helps to install the vibration plate on the bone conduction earphone blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a schematic plan view of the main body of the utility model;

[0019] Figure 3 It is a plane schematic diagram of the elastic arm of the utility model;

[0020] Figure 4 It is a schematic plan view of the outer ring frame of the utility model;

[0021] Figure 5 It is a schematic plan view of the inner ring frame of the utility model;

[0022] Figure 6 This is a schematic diagram of the installation of the main body of the utility model;

[0023] Figure 7 It is a schematic cross-sectional view of the main body of the utility model;

[0024] Figure 8 It is a schematic diagram of the symmetry axis of the utility model.

[0025] Reference numerals include:

[0026] 1—Inner ring frame 2—Outer ring frame 3—Elastic arm

[0027] 11—Second tank 12—Third tank 21—First tank

[0028] 31 - first end 32 - second end 33 - first connecting arm

[0029] 34 - second connecting arm 35 - bending portion 4 - fourth slot

[0030] 5—housing 6—end cover DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0032] See also Figures 1 to 8As shown, the utility model is a shrapnel structure for bone conduction headphones, including a vibrating plate, the vibrating plate including an inner ring frame 1, an outer ring frame 2 used in conjunction with the inner ring frame 1, the outer ring frame 2 is in the shape of a circular runway, and the inner ring frame 1 is located inside the outer ring frame 2; it also includes an elastic arm 3 for connecting the inner ring frame 1 and the outer ring frame 2, the shrapnel formed by the inner ring frame 1, the outer ring frame 2 and the elastic arm 3 has at least one symmetry axis, there is a gap between the inner ring frame 1 and the outer ring frame 2, the elastic arm 3 is located in the gap / part of the elastic arm 3 is located in the gap, and a positioning portion for limiting the external first bearing member / connecting the vibrating plate is provided on the inner ring frame 1 and / or the outer ring frame 2.

[0033] Specifically, the annular track shape of the outer ring frame 2 and the design of the elastic arm 3 can increase the stability and balance of the vibration plate, which helps to ensure that the vibration plate maintains a stable position during the vibration process and improves the performance of the earphone. At the same time, the elastic arm 3 is located in the gap, which can provide a certain flexibility, so that the elastic arm 3 can better adapt to the shape and vibration requirements of the vibration plate. The design of the positioning part can be used to limit and connect the external first bearing member, which effectively increases the connection stability between the vibration plate and the external device, and also helps to install the vibration plate on the bone conduction earphone blank.

[0034] For details, see Figure 8 As shown, the spring structure is symmetrical about the symmetry axes Aa and Bb.

[0035] Specifically, the inner ring frame 1, the outer ring frame 2, and the elastic arm 3 are integrally formed.

[0036] Specifically, the inner ring frame 1 is provided with a first positioning portion for limiting the inner ring frame 1, which can better increase the stability of the spring structure.

[0037] Specifically, the first positioning portion includes two second grooves 11 opened on the inner ring frame 1. The second grooves 11 can provide more stable support to ensure that the inner ring frame 1 will not shake or loosen during installation or use, thereby improving the stability and reliability of the product. At the same time, the two second grooves 11 can be used to accurately position the inner ring frame 1 to ensure its correct position and direction, thereby ensuring that the product can achieve the expected effect when in use and is more convenient to install.

[0038] Specifically, the second groove body 11 is opened at both ends of the inner ring frame body 1 in the length direction, and the diameter of the second groove body 11 is 1.45mm-1.55mm. By opening the second groove body 11 at both ends of the inner ring frame body 1, balanced support for the inner ring frame body 1 can be achieved, thereby effectively dispersing pressure, reducing stress concentration, and reducing the risk of deformation and damage of the inner ring frame body 1.

[0039] Specifically, the outer ring frame 2 is provided with a second positioning portion, and the second positioning portion is used to cooperate with the first positioning portion to improve the stability of the outer ring frame 2.

[0040] Specifically, the second positioning portion includes a first groove 21 opened on the outer ring frame 2, and the first groove 21 is symmetrically arranged along the symmetry axis of the outer ring frame 2. The symmetrical arrangement of the first groove 21 along the symmetry axis of the outer ring frame 2 can ensure that the inner ring frame 1 can be accurately positioned during installation and maintain symmetry, so that the product maintains a stable position during use. At the same time, the symmetrically arranged first groove 21 can achieve balanced support, disperse the weight and pressure of the inner ring frame 1 / outer ring frame 2, reduce stress concentration, and reduce the risk of deformation and breakage.

[0041] Specifically, there are six first slot bodies 21 , which are divided into two groups. The two groups of first slot bodies 21 are parallel and symmetrically arranged along the symmetry axis of the outer ring frame 2 .

[0042] Specifically, the symmetry of the spring sheet structure also includes central symmetry about the first slot body 21 and rotational symmetry about the elastic arm 3 .

[0043] Specifically, the vibration plate is made of stainless steel, which is non-toxic and harmless, meets environmental protection requirements, does not produce harmful substances, ensures the safety and health of the product, and has high strength and corrosion resistance.

[0044] Specifically, the length of the vibration plate is 16.77 mm-16.83 mm, the thickness of the vibration plate is 0.148 mm-0.152 mm, and the width of the vibration plate is 8.57 mm-8.63 mm.

[0045] Specifically, the surface of the vibration plate is provided with a metal plating layer, which is used to prevent the vibration plate from rusting and improve the wear resistance of the vibration plate. The metal plating layer can also be a chrome plating layer: which can improve the appearance texture and increase corrosion resistance; a nickel plating layer: which has good corrosion resistance and conductivity; a gold plating layer: which can improve the luxury and nobleness of the product; a silver plating layer: which has good conductivity and is suitable for some applications that require high conductivity; a copper plating layer: which can improve the conductivity and corrosion resistance of the product; a tin plating layer: which can increase the wear resistance and corrosion resistance of the product.

[0046] Specifically, in this embodiment, the metal coating is a galvanized layer, and the thickness of the galvanized layer is 5 μm.

[0047] Specifically, the elastic arm 3 is an arc-shaped segment with a corner, and the connection between the elastic arm 3 and the inner ring frame 1 and the outer ring frame 2 is set with a natural rounded corner, that is, a chamfer is set to enhance the stability of the elastic arm 3.

[0048] Specifically, the width of the elastic arm 3 is smaller than the distance formed between the inner ring frame 1 and the outer ring frame 2 to facilitate vibration.

[0049] Specifically, the inner ring frame 1 and / or the outer ring frame 2 is also provided with a fourth groove 4 connected to the positioning part. The aperture of the end of the fourth groove 4 away from the positioning part gradually increases and passes through the end surface of the inner ring frame 1 and / or the outer ring frame 2. In this embodiment, the fourth groove 4 is arranged on the upper and lower sides of the positioning part, and the positioning part passes through the inner ring frame 1 and / or the outer ring frame 2 via the fourth groove 4. It is more convenient for the vibration plate to be passed through by the external positioning column via the fourth groove 4, which is beneficial to the installation of the vibration plate. The positioning part is the first groove 21 / the second groove 11.

[0050] Specifically, a third slot 12 is also provided on the inner ring frame 1, and the third slot 12 is used for extending the external electrode. The opening of the third slot 12 makes the shape of the inner ring frame 1 a circular runway type. The design of the third slot 12 can improve the adaptability of the device to different external electrode designs, so that users can choose electrodes of different types or shapes, and the device can still provide good performance, thereby improving the practicality of the shrapnel.

[0051] Specifically, the third groove body 12 is located between the two second groove bodies 11, which helps to improve the stability of the inner ring frame 1 through the second groove bodies 11. In this embodiment, the two second groove bodies 11 are symmetrical about the third groove body 12, and multiple second groove bodies 11 can be provided, and multiple second groove bodies 11 are opened around the third groove body 12.

[0052] Specifically, the elastic arm 3 includes a first connecting arm 33 for increasing the overall length of the elastic arm 3 , and two ends of the first connecting arm 33 are respectively used to be arranged on the inner ring frame 1 and the outer ring frame 2 .

[0053] Specifically, the elastic arm 3 also includes a first end 31 arranged on the inner ring frame 1 and a second end 32 arranged on the outer ring frame 2. The two ends of the first connecting arm 33 are arranged on the inner ring frame 1 and the outer ring frame 2 via the first end 31 and the second end 32. The first end 31 and the second end 32 are both bent in an arc shape, and the extension directions of the first end 31 and the second end 32 are crossed or parallel.

[0054] Specifically, the elastic arm 3 also includes a second connecting arm 34 used in conjunction with the first connecting arm 33. A bending portion 35 is provided between the first connecting arm 33 and the second connecting arm 34. The bending portion 35 is used to connect the first connecting arm 33 and the second connecting arm 34. The first connecting arm 33 and the second connecting arm 34 are both of arc-shaped design in this embodiment. The existence of the bending portion 35 helps to reduce the stress and pressure between the connecting arms, and can reduce the stress on the elastic arm during use, thereby improving its overall durability and lifespan. At the same time, the arc-shaped design and the structure of the bending portion 35 simplify the manufacturing process and are conducive to one-piece forming.

[0055] Specifically, one end of the first connecting arm 33 and the second connecting arm 34 away from the bending portion 35 is respectively arranged on the first end portion 31 and the second end portion 32. In other embodiments, multiple connecting arms may also be arranged. The first connecting arm 33 and the second connecting arm 34 can effectively increase the length of the elastic arm and can be used to disperse the stress of the vibration plate, thereby improving its durability.

[0056] Specifically, the width / thickness of the first end 31 gradually decreases from the inner ring frame 1 toward the direction away from the inner ring frame 1, and the width of the end of the first end 31 away from the inner ring frame 1 is equal to the width of the end of the first connecting arm 33 close to the first end 31. The width / thickness of the second end 32 gradually decreases from the outer ring frame 2 toward the direction away from the outer ring frame 2, and the width of the end of the second end 32 away from the outer ring frame 2 is equal to the width of the end of the second connecting arm 34 close to the second end 32. The width of the end of the first end 31 away from the inner ring frame 1 is equal to the width of the end of the first connecting arm 33 close to the first end 31, which helps to maintain the balance and stability of the vibration plate structure. At the same time, the width / thickness of the first end 31 gradually decreases from the inner ring frame 1 toward the direction away from the inner ring frame 1, which helps to improve the structural stability between the first end 31 and the inner ring frame 1. The beneficial effects of the second end 32 are the same as described above.

[0057] Specifically, at least two elastic arms 3 are provided for the structural stability and balance of the inner ring frame 1. In this embodiment, four elastic arms 3 are provided, and the four elastic arms 3 are symmetrically arranged in pairs about the central axis of the inner ring frame 1, which is beneficial to further improve the stability of the spring piece.

[0058] Specifically, the spring piece is used to be arranged between the outer shell and the end cover.

[0059] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A spring structure for bone conduction earphones, comprising a vibrating plate, wherein the vibrating plate comprises an inner ring frame (1) and an outer ring frame (2) used in conjunction with the inner ring frame (1); characterized in that: It also includes an elastic arm (3) for connecting the inner ring frame (1) and the outer ring frame (2); the spring sheet formed by the inner ring frame (1), the outer ring frame (2) and the elastic arm (3) has at least one symmetry axis.

2. The shrapnel structure for bone conduction earphone according to claim 1, characterized in that: The inner ring frame (1) is provided with a first positioning portion for limiting the position of the inner ring frame (1).

3. The shrapnel structure for bone conduction earphone according to claim 2, characterized in that: The first positioning portion comprises two second slots (11) formed on the inner ring frame (1).

4. The shrapnel structure for bone conduction earphone according to claim 3, characterized in that: The second groove body (11) is arranged at both ends of the inner ring frame body (1) in the length direction, and the diameter of the second groove body (11) is 1.45 mm-1.55 mm.

5. The shrapnel structure for bone conduction earphone according to claim 1, characterized in that: The outer ring frame (2) is provided with a second positioning portion.

6. The shrapnel structure for bone conduction earphone according to claim 5, characterized in that: The second positioning portion comprises a first groove body (21) opened on the outer ring frame body (2), and the first groove body (21) is symmetrically arranged along the symmetry axis of the outer ring frame body (2).

7. The shrapnel structure for bone conduction earphone according to claim 1, characterized in that: The vibrating plate is made of stainless steel.

8. The shrapnel structure for bone conduction earphone according to claim 1, characterized in that: The length of the vibration plate is 16.77mm-16.83mm, the thickness of the vibration plate is 0.148mm-0.152mm, and the width of the vibration plate is 8.57mm-8.63mm.

9. The shrapnel structure for bone conduction earphone according to claim 1, characterized in that: The surface of the vibration plate is provided with a metal coating.

10. The shrapnel structure for bone conduction earphone according to claim 1, characterized in that: The elastic arm (3) is in a curved U shape, and the connection between the elastic arm (3) and the inner ring frame (1) and the outer ring frame (2) adopts a rounded transition.

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