Bone conduction vibrator device

Abstract

The utility model discloses a bone conduction vibrator device which comprises an outer shell, a fixing column and a fixing ring. An iron core is arranged on the inner bottom surface of the outer shell, a coil is wound on the outer cambered surface of the iron core, a fixing column is arranged on the upper surface of the iron core, an oscillator sheet is arranged at the top end of the fixing column, a step groove is formed in the middle of the inner side wall of the outer shell, the fixing ring is fixedly connected to the upper surface of the step groove, and elastic sheets are uniformly arranged on the inner cambered surface of the fixing ring. The elastic sheets are respectively matched with the iron core and the oscillator sheets, contacts are arranged at the ends of the inner sides of the elastic sheets, and the contacts are respectively matched with the iron core and the oscillator sheets; wherein the bone conduction vibrator device further comprises a vibrating diaphragm, the lower end of the outer edge of the vibrating diaphragm is connected to the interior of a buckling groove formed in the outer cambered surface of the outer shell in a buckled mode, the inner top wall of the vibrating diaphragm is attached to the upper surface of the vibrator piece, and according to the bone conduction vibrator device, the frequency and the amplitude of the vibrator piece are increased, and the tone quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of bone conduction equipment technology, specifically a bone conduction oscillator device. Background Technology

[0002] Bone conduction transducers are a crucial component of bone conduction headphones. They convert sound into mechanical vibrations of different frequencies, transmitting sound waves through the skull, bony labyrinth, inner ear fluid, cochlea, and auditory center. Existing bone conduction transducers generate a magnetic field using a voice coil and magnetic field assembly, causing the magnet inside the transducer to move up and down, thus producing sound. However, due to the rigidity of the diaphragm, the transducer's amplitude is limited, preventing it from producing a larger vibration amplitude. This results in poor bass performance, and the electromagnetic radiation inside the transducer can harm the user's health. Therefore, we propose a bone conduction transducer device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a bone conduction oscillator device that expands the frequency and amplitude of the oscillator plate, improves the sound quality, and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bone conduction oscillator device, comprising an outer shell, a fixing column, and a fixing ring;

[0005] The outer casing has an iron core on its inner bottom surface, a coil is wound around the outer arc surface of the iron core, a fixing post is provided on the upper surface of the iron core, a vibrator plate is provided at the top of the fixing post, a stepped groove is provided in the middle of the inner side wall of the outer casing, a fixing ring is fixedly connected to the upper surface of the stepped groove, and spring pieces are evenly provided on the inner arc surface of the fixing ring. The spring pieces are respectively configured to cooperate with the iron core and the vibrator plate.

[0006] The diaphragm is also included. The lower edge of the diaphragm is fastened to the inside of the groove set on the outer arc surface of the outer shell. The inner top wall of the diaphragm is attached to the upper surface of the vibrator plate, thereby increasing the frequency and amplitude of the vibrator plate and improving the sound quality.

[0007] Furthermore, each inner end of the spring sheet is provided with a contact, which is respectively configured to cooperate with the iron core and the vibrator sheet to improve the vibration effect on the vibrator sheet.

[0008] Furthermore, the length of the spring sheet increases sequentially in a clockwise direction, thereby changing the amplitude and frequency of the oscillator sheet's vibration.

[0009] Furthermore, a pressure ring is placed on the upper surface of the fixing ring, and both the pressure ring and the fixing ring are fixedly connected to the stepped groove by fixing bolts arranged in a ring array, which facilitates installation and fixation.

[0010] Furthermore, a gap is provided between the outer edge of the vibrator plate and the inner arc surface of the pressure ring, enabling the vibrator plate to achieve a wider range of vibration.

[0011] Furthermore, the diaphragm is a rigid silicone diaphragm, which improves the tactile feel when in contact with human skin and reduces the attenuation of sound quality.

[0012] Furthermore, the diaphragm is equipped with an electromagnetic shielding mesh inside to reduce electromagnetic radiation damage to the human eardrum.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This bone conduction oscillator device has the following advantages:

[0014] The length of the springs increases clockwise. When they are attracted by the same magnetic force, they produce different feedback rates. The longer springs are more sensitive and can vibrate quickly at high frequencies, while the shorter springs can generate greater vibration force at low frequencies, increasing the vibration amplitude of the oscillator, thereby expanding the frequency and amplitude of the oscillator and improving the sound quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0017] In the diagram: 1 Outer shell, 101 Fastening groove, 102 Stepped groove, 2 Iron core, 3 Coil, 4 Fixing column, 5 Vibrator plate, 6 Fixing ring, 7 Spring plate, 71 Contact, 8 Pressure ring, 9 Fixing bolt, 10 Diaphragm, 11 Electromagnetic shielding mesh. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-2 This embodiment provides a technical solution: a bone conduction oscillator device, including an outer shell 1, a fixing column 4, and a fixing ring 6;

[0020] The outer casing 1 has an iron core 2 on its inner bottom surface. A coil 3 is wound around the outer arc surface of the iron core 2. A fixing post 4 is provided on the upper surface of the iron core 2. A vibrator plate 5 is provided at the top of the fixing post 4. A stepped groove 102 is provided in the middle of the inner side wall of the outer casing 1. A fixing ring 6 is fixedly connected to the upper surface of the stepped groove 102. Spring pieces 7 are evenly provided on the inner arc surface of the fixing ring 6. The spring pieces 7 are respectively configured to cooperate with the iron core 2 and the vibrator plate 5. A contact 71 is provided on the inner end of each spring piece 7. The contact 71 is respectively configured to cooperate with the iron core 2 and the vibrator plate 5 to improve the vibration effect of the vibrator plate 5. When the current passes through the coil 3, a magnetic field is generated inside the iron core 2, causing the iron core 2 to attract the contact 71 at a high frequency. The contact 71 vibrates continuously and strikes the vibrator plate 5. The vibrator plate 5 vibrates and transmits the vibration to the human body through the diaphragm 10. The skull allows the inner ear to hear sound. The length of the spring 7 increases clockwise. When the springs 7 of different lengths are attracted by the same magnetic force, the feedback rate is different. The longer springs 7 are more sensitive and can vibrate quickly at high frequencies, while the shorter springs 7 can generate greater vibration force at low frequencies, increasing the vibration amplitude of the vibrator 5, thereby expanding the frequency and amplitude of the vibrator 5, making the sound heard by the human body clearer and more complete. A pressure ring 8 is placed on the upper surface of the fixing ring 6. Both the pressure ring 8 and the fixing ring 6 are fixedly connected to the stepped groove 102 by fixing bolts 9 arranged in a ring array, which facilitates installation and fixation. There is a gap between the outer edge of the vibrator 5 and the inner arc surface of the pressure ring 8, so that the vibrator 5 can achieve a wider range of vibration.

[0021] The diaphragm 10 is also included. The lower edge of the diaphragm 10 is fastened to the inside of the groove 101 set on the outer arc surface of the outer shell 1. The inner top wall of the diaphragm 10 is attached to the upper surface of the vibrator plate 5. The diaphragm 10 is a hard silicone diaphragm, which improves the tactile feel when in contact with human skin and reduces the attenuation of sound quality. The diaphragm 10 is equipped with an electromagnetic shielding mesh 11. The electromagnetic shielding mesh 11 is an aluminum wire woven mesh, which has a certain shielding effect on the magnetic field generated by the iron core 2 and reduces the damage of electromagnetic radiation to the human eardrum.

[0022] The working principle of the bone conduction oscillator device provided by this utility model is as follows:

[0023] When the current from the external power amplifier circuit board passes through the coil 3, it generates a magnetic field inside the iron core 2, causing the iron core 2 to attract the contact 71 at a high frequency. The contact 71 vibrates continuously and strikes the vibrator 5. The vibrator 5 vibrates and transmits the vibration to the human skull through the diaphragm 10. Since the length of the spring 7 increases sequentially in the clockwise direction, the feedback rate generated when attracted by the same magnetic force is different. The longer spring 7 is more sensitive and can vibrate quickly at high frequencies, while the shorter spring 7 can generate a larger vibration force at low frequencies, increasing the vibration amplitude of the vibrator 5, thereby expanding the frequency and amplitude of the vibrator 5 and improving the sound quality.

[0024] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A bone conduction oscillator device, characterized in that: It includes an outer shell (1), a fixing post (4), and a fixing ring (6); The outer shell (1) has an iron core (2) on its inner bottom surface. The outer arc surface of the iron core (2) is wound with a coil (3). The upper surface of the iron core (2) is provided with a fixing post (4). The top of the fixing post (4) is provided with a vibrator plate (5). The middle part of the inner side wall of the outer shell (1) is provided with a stepped groove (102). The fixing ring (6) is fixedly connected to the upper surface of the stepped groove (102). The inner arc surface of the fixing ring (6) is uniformly provided with spring pieces (7). The spring pieces (7) are respectively configured to cooperate with the iron core (2) and the vibrator plate (5). Among them, it also includes a diaphragm (10), the lower edge of the outer edge of the diaphragm (10) is fastened to the inside of the fastening groove (101) provided on the outer arc surface of the outer shell (1), and the inner top wall of the diaphragm (10) is attached to the upper surface of the vibrator plate (5).

2. The bone conduction oscillator device according to claim 1, characterized in that: The inner end of each spring piece (7) is provided with a contact (71), which is respectively configured to cooperate with the iron core (2) and the vibrator piece (5).

3. The bone conduction oscillator device according to claim 1, characterized in that: The length of the spring piece (7) increases sequentially in a clockwise direction.

4. The bone conduction oscillator device according to claim 1, characterized in that: A pressure ring (8) is placed on the upper surface of the fixing ring (6). Both the pressure ring (8) and the fixing ring (6) are fixedly connected to the stepped groove (102) by fixing bolts (9) arranged in a ring array.

5. A bone conduction oscillator device according to claim 4, characterized in that: A gap is provided between the outer edge of the vibrator plate (5) and the inner arc surface of the pressure ring (8).

6. A bone conduction oscillator device according to claim 1, characterized in that: The diaphragm (10) is a rigid silicone diaphragm.

7. A bone conduction oscillator device according to claim 1, characterized in that: The diaphragm (10) is provided with an electromagnetic shielding mesh (11) inside.

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