Round bone conduction vibrator

Abstract

The utility model discloses a circular bone conduction vibrator which comprises a shell, a vibrating membrane, a permanent magnet and a driving coil, the shell is arranged to be in a circular ring shape, the vibrating membrane is arranged at the position, close to the top, in the shell, the driving coil is arranged at the position, close to the bottom, in the shell, and the vibrating membrane and the driving coil are arranged in an opposite mode. The permanent magnet is installed in the shell, the permanent magnet is arranged between the vibrating diaphragm and the driving coil, and the permanent magnet and the driving coil are oppositely arranged. According to the utility model, through the circular design, the vibrator structure is compact, miniaturization and integration are facilitated, and the wearing comfort is improved; the flexible vibrating diaphragm and the multi-layer wound driving coil are adopted, so that the low-frequency response and energy conversion efficiency are remarkably improved, and the tone quality is improved; the use of the high magnetic energy product permanent magnet enhances the magnetic field force, and improves the vibration effect and sound transmission efficiency of the vibrator.

Description

Technical Field

[0001] This utility model belongs to the field of audio equipment technology, specifically relating to a circular bone conduction vibrator. Background Technology

[0002] Earbuds are products made using the principle of air vibration. When in use, the earbuds are inserted into the ear canal. The earbuds vibrate the air, which in turn vibrates the eardrum, and then transmits the sound to the brain.

[0003] Existing bone conduction audio devices typically use linear transducers, which are complex in structure and large in size, hindering miniaturization and wearing comfort. Furthermore, linear transducers have shortcomings in low-frequency response and energy conversion efficiency, impacting sound quality and user experience.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a circular bone conduction resonator, which aims to simplify the structure, improve low-frequency response and energy conversion efficiency, thereby enhancing the overall performance of bone conduction audio devices.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A circular bone conduction transducer includes a housing, a diaphragm, a permanent magnet, and a drive coil. The housing is annular, the diaphragm is located inside the housing near the top, and the drive coil is located inside the housing near the bottom, with the diaphragm and drive coil positioned opposite each other. The permanent magnet is installed inside the housing, positioned between the diaphragm and drive coil, and the permanent magnet and drive coil are also positioned opposite each other. The drive coil generates a magnetic field under the influence of an electric current, which interacts with the permanent magnet, causing the diaphragm to vibrate and thus transmitting sound through the bone. The annular housing design allows for a circular bone conduction transducer, resulting in a compact structure, facilitating miniaturization and integration, and improving wearing comfort.

[0008] In one or more embodiments of the present invention, a mounting platform is provided on the top inner sidewall of the housing, and a mounting groove is provided on the bottom inner sidewall of the housing.

[0009] In one or more embodiments of this utility model, a protective cover is installed on the top of the outer shell. The protective cover is a circular cover made of silicone material, which makes the cover comfortable when inserted into the ear and improves the user experience.

[0010] In one or more embodiments of this utility model, a boss is fixedly connected to the bottom of the cover. The boss is installed in the mounting platform by snap-fit. The snap-fit ​​between the boss and the mounting platform makes the installation of the outer shell and the cover stable and easy to disassemble and assemble. At the same time, the connection between the outer shell and the cover is sealed.

[0011] In one or more embodiments of this utility model, an annular mounting groove is provided on the side wall of the cover, and the vibrating diaphragm is installed in the annular mounting groove. The vibrating diaphragm is installed through the annular mounting groove while ensuring stability after installation.

[0012] In one or more embodiments of this utility model, a base plate is installed at the bottom of the outer shell, and the outer end of the base plate is installed in the mounting groove by snap-fit. The snap-fit ​​between the base plate and the mounting groove makes the installation of the outer shell and the base plate stable and easy to disassemble and assemble. At the same time, the connection between the outer shell and the base plate is sealed.

[0013] In one or more embodiments of this utility model, the drive coil is mounted on a base plate, and a magnet holder is mounted on the base plate.

[0014] In one or more embodiments of this utility model, the permanent magnet is mounted on a magnet base, which supports the permanent magnet and ensures its stability. A directional sound transmission cover is mounted on the permanent magnet, allowing the sound generated by the vibration of the diaphragm to propagate in a directional manner.

[0015] In one or more embodiments of this utility model, the lower end of the directional sound transmission cover is framed on the drive coil, and the top of the directional sound transmission cover abuts against the diaphragm, so that the directional sound transmission cover causes the diaphragm to vibrate and generate directional sound transmission.

[0016] In one or more embodiments of this invention, the diaphragm is made of a flexible material to improve vibration sensitivity and comfort. The permanent magnet is made of a high energy product material to increase magnetic field strength and response speed. The drive coil employs a multi-layer wound structure to enhance the magnetic field force.

[0017] Compared with existing technologies, this invention makes the vibrator structure compact through a circular design, which is convenient for miniaturization and integration and improves wearing comfort; the use of a flexible diaphragm and a multi-layer wound drive coil significantly improves low-frequency response and energy conversion efficiency, thus improving sound quality; the use of a high magnetic energy product permanent magnet enhances the magnetic field force and improves the vibration effect and sound transmission efficiency of the vibrator. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a circular bone conduction vibrator in one embodiment of the present invention;

[0020] Figure 2 This is a perspective view of a circular bone conduction vibrator in one embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view of a circular bone conduction vibrator in one embodiment of the present invention;

[0022] Figure 4 This utility model Figure 3 A schematic diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the outer shell of this utility model;

[0024] Figure 6 A schematic diagram of the driving coil in this utility model;

[0025] Figure 7 This is a schematic diagram of the protective cover in this utility model.

[0026] Explanation of key figure labels:

[0027] 1-Outer shell, 11-Mounting platform, 12-Mounting groove, 2-Diaphragm, 3-Cover, 31-Boss, 4-Magnet base, 5-Permanent magnet, 6-Base plate, 7-Drive coil, 8-Directional sound transmission cover. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] like Figures 1-3 As shown, a circular bone conduction vibrator in one embodiment of the present invention includes a shell 1, a vibrating diaphragm 2, a permanent magnet 5, and a drive coil 7.

[0030] like Figures 1-6 As shown, the outer shell 1 is annular, the diaphragm 2 is located inside the outer shell 1 near the top, and the drive coil 7 is located inside the outer shell 1 near the bottom. The diaphragm 2 and the drive coil 7 are arranged opposite each other. A permanent magnet 5 is installed inside the outer shell 1, positioned between the diaphragm 2 and the drive coil 7, and the permanent magnet 5 and the drive coil 7 are arranged opposite each other. The drive coil 7 generates a magnetic field under the influence of an electric current, which interacts with the permanent magnet 5, causing the diaphragm 2 to vibrate, thereby transmitting sound through the bone. The annular design of the outer shell 1 allows for a circular bone conduction transducer design. This circular design makes the transducer structure compact, facilitating miniaturization and integration, and improving wearing comfort.

[0031] like Figure 4 and Figure 5 As shown, a mounting platform 11 is provided on the top inner side wall of the outer casing 1, and a mounting groove 12 is provided on the bottom inner side wall of the outer casing 1.

[0032] like Figures 1-4 As shown, a cover 3 is installed on the top of the outer shell 1. The cover 3 is a round cover made of silicone material, which makes the cover 3 comfortable when inserted into the ear and improves the user experience.

[0033] like Figure 3 Combination Figure 5 as well as Figure 7 As shown, a boss 31 is fixedly connected to the bottom of the cover 3. The boss 31 is installed in the mounting platform 11 by snap-fit. The snap-fit ​​between the boss 31 and the mounting platform 11 makes the installation of the outer shell 1 and the cover 3 stable and easy to disassemble and assemble. At the same time, the connection between the outer shell 1 and the cover 3 is sealed.

[0034] like Figure 3 Combination Figure 5 As shown, an annular mounting groove is provided on the side wall of the cover 3. The vibrating diaphragm 2 is installed in the annular mounting groove, which ensures the stability of the vibrating diaphragm 2 after installation.

[0035] like Figure 3 Combination Figure 5 As shown, a base plate 6 is installed at the bottom of the outer casing 1. The outer end of the base plate 6 is installed in the mounting groove 12 by snap-fit. The snap-fit ​​between the base plate 6 and the mounting groove 12 makes the installation of the outer casing 1 and the base plate 6 stable and easy to disassemble and assemble. At the same time, the connection between the outer casing 1 and the base plate 6 is sealed.

[0036] like Figure 3 As shown, the drive coil 7 is mounted on the base plate 6, and the base plate 6 is equipped with a magnet holder 4.

[0037] like Figure 3As shown, the permanent magnet 5 is mounted on the magnet base 4, which supports the permanent magnet 5 and ensures its stability. A directional sound transmission cover 8 is mounted on the permanent magnet 5, allowing the sound generated by the vibration of the diaphragm 2 to propagate in a directional manner.

[0038] like Figure 3 As shown, the lower end of the directional sound transmission cover 8 is connected to the drive coil 7, and the top of the directional sound transmission cover 8 abuts against the diaphragm 2, so that the directional sound transmission cover 8 vibrates the diaphragm 2 to generate directional sound transmission.

[0039] Preferably, the diaphragm 2 is made of a flexible material to improve vibration sensitivity and comfort. The permanent magnet 5 is made of a high magnetic energy product material to increase magnetic field strength and response speed. The drive coil 7 adopts a multi-layer wound structure to enhance the magnetic field force.

[0040] In practical applications, this circular bone conduction vibrator can be widely used in audio devices such as bone conduction headphones and bone conduction speakers, providing clearer, fuller sound quality and a more comfortable wearing experience.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A circular bone conduction vibrator, comprising a shell, a diaphragm, a permanent magnet, and a drive coil, characterized in that, The outer shell is circular, the vibrating diaphragm is located inside the outer shell near the top, the driving coil is located inside the outer shell near the bottom, the vibrating diaphragm and the driving coil are arranged opposite each other, the permanent magnet is installed inside the outer shell, the permanent magnet is located between the vibrating diaphragm and the driving coil, and the permanent magnet and the driving coil are arranged opposite each other.

2. A circular bone conduction vibrator according to claim 1, characterized in that, A mounting platform is provided on the top inner sidewall of the housing, and a mounting groove is provided on the bottom inner sidewall of the housing.

3. A circular bone conduction vibrator according to claim 2, characterized in that, The top of the outer casing is fitted with a protective cover, which is a circular cover made of silicone.

4. A circular bone conduction vibrator according to claim 3, characterized in that, The bottom of the cover is fixedly connected to a boss, which is installed in the mounting platform by snap-fit.

5. A circular bone conduction vibrator according to claim 4, characterized in that, The protective cover has an annular mounting groove on its side wall, and the vibrating diaphragm is installed in the annular mounting groove.

6. A circular bone conduction vibrator according to claim 5, characterized in that, A base plate is installed at the bottom of the outer casing, and the outer end of the base plate is installed in the mounting groove by snap-fit.

7. A circular bone conduction vibrator according to claim 6, characterized in that, The drive coil is mounted on the base plate, and a magnet holder is mounted on the base plate.

8. A circular bone conduction vibrator according to claim 7, characterized in that, The permanent magnet is mounted on a magnet base, and a directional sound transmission cover is mounted on the permanent magnet.

9. A circular bone conduction vibrator according to claim 8, characterized in that, The lower end of the directional sound transmission cover is framed on the drive coil, and the top of the directional sound transmission cover abuts against the diaphragm.

10. A circular bone conduction vibrator according to claim 1, characterized in that, The diaphragm is made of a flexible material, the permanent magnet is made of a high magnetic energy product material, and the drive coil adopts a multi-layer winding structure.

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