Novel bone gas conduction vibrator
By designing a novel bone conduction resonator, employing both sealed and open cavity structures, and combining silicone damping sheets and diaphragms, the problem of insufficient low-frequency performance in traditional bone conduction headphones has been solved, resulting in a better sound quality experience.
Patent Information
- Application Number
- CN202520221337.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Traditional bone conduction headphones cannot achieve the low-frequency performance of traditional headphones, resulting in obvious sound quality defects.
A novel bone-air conduction vibrator is designed, employing both closed and open cavity structures, combined with silicone damping sheets and diaphragms, to achieve low-frequency and mid-to-high-frequency sound transmission using airflow and air vibration.
It achieves enhanced low-frequency performance in a closed cavity and improved mid-to-high frequency performance in an open cavity, compensating for the low-frequency deficiencies in bone conduction headphones and providing a sound experience close to that of traditional headphones.
Smart Images
Figure CN223681180U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bone conduction earphone technical field, concretely is a novel bone gas conduction sub. BACKGROUND
[0002] Bone conduction is a kind of sound transmission mode, i.e. the sound is converted into different frequency mechanical vibration, and is transmitted through the skull, bone labyrinth, endolymph, spiral organ and auditory center of a person, and the earphone manufactured using bone conduction technology is called bone conduction earphone;
[0003] The traditional bone conduction earphone sound emitting part uses vibration transmission sound mode, and the low-frequency effect of traditional earphone cannot be achieved, therefore, the utility model provides a novel bone gas conduction sub. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a novel bone gas conduction sub to solve the problems in the above background.
[0005] To achieve the above object, the utility model provides the following technical scheme: a novel bone gas conduction sub, including acoustic cavity, the acoustic cavity one side is equipped with the open installation cavity, the installation cavity inside is equipped with sub assembly, and the sub assembly includes sub cavity, and the back of the sub cavity is equipped with PCBA board;
[0006] The sub cavity is equipped with structural frame inside, the structural frame is equipped with degaussing sheet inside, the degaussing sheet is equipped with magnet on the front, the structural frame is equipped with coil outside, the structural frame is equipped with magnet cover and is connected, the magnet cover covers the magnet, and the edge between the front of the sub cavity and the magnet cover is equipped with diaphragm.
[0007] The coil is equipped with vibration spring outside, and the outer edge of the vibration spring is in contact with the inner wall of the sub cavity.
[0008] The acoustic front cavity is equipped with sound hole on one side.
[0009] The acoustic front cavity is equipped with sound hole on one side.
[0010] The installation cavity is equipped with silica gel shock-absorbing sheet at the opening.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] The utility model can realize that gas pushes silica gel shock-absorbing sheet to emit the effect of low frequency in the closed sub cavity, and also can emit low frequency through sound hole in the semi-open acoustic front cavity, which solves the problem of bone conduction low-frequency transmission hearing feeling, i.e. can be used for bone conduction sound emission, also can be used for air conduction sound emission, and makes up the defect of low-frequency sound quality of bone conduction. Attached Figure Description
[0013] Fig. 1 This is a schematic diagram of the overall structure in Embodiment 1 of this utility model;
[0014] Fig. 2 This is a schematic diagram of the separation structure of the acoustic cavity and the acoustic front cavity in Embodiment 1 of this utility model;
[0015] Fig. 3 This is a schematic diagram of the exploded structure in Embodiment 1 of this utility model;
[0016] Fig. 4 This is a schematic diagram of the overall structure in Embodiment 2 of this utility model;
[0017] Fig. 5 This is a schematic diagram of the separation structure of the acoustic cavity and the silicone damping sheet in Embodiment 2 of this utility model;
[0018] Fig. 6 This is a schematic diagram of the exploded structure in Embodiment 2 of this utility model.
[0019] In the diagram: 10. Acoustic cavity; 20. Vibrator assembly; 21. Vibrator cavity; 22. Structural frame; 23. Coil; 24. Vibrating spring; 25. PCBA board; 26. Demagnetizing sheet; 27. Magnet; 28. Magnet cover; 29. Diaphragm; 30. Acoustic front cavity; 31. Sound outlet; 40. Silicone damping sheet. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Example 1
[0022] Please see Figs. 1-3 This utility model provides a technical solution: a novel bone conduction vibrator, including an acoustic cavity 10, an installation cavity with an opening on one side of the acoustic cavity 10, a vibrator assembly 20 inside the installation cavity, an acoustic front cavity 30 at the opening of the installation cavity, and a sound outlet 31 on one side of the acoustic front cavity 30. The acoustic front cavity 30 covers the installation cavity on the front of the acoustic cavity 10, and the vibrator assembly 20 is located inside the installation cavity, forming an open cavity (due to the setting of the sound outlet 31). The airflow generated by the vibration of the vibrator assembly 20 will be directionally transmitted to the ear canal through the sound outlet 31.
[0023] The shaker assembly 20 comprises a shaker cavity 21, and the back of the shaker cavity 21 is provided with a PCBA board 25; the inside of the shaker cavity 21 is provided with a structural frame 22, the inside of the structural frame 22 is provided with a demagnetization sheet 26, the front of the demagnetization sheet 26 is provided with a magnet 27, the outside of the structural frame 22 is provided with a coil 23, the front of the structural frame 22 is sleeved with a magnet cover 28, the magnet cover 28 covers the magnet 27, and the edge between the front of the shaker cavity 21 and the magnet cover 28 is provided with a diaphragm 29; the outside of the coil 23 is sleeved with a vibration spring 24, and the outer edge of the vibration spring 24 is in contact with the inner wall of the shaker cavity 21.
[0024] The demagnetization sheet 26 is arranged at the back of the magnet 27, plays a role of demagnetization, avoids noise generated at the back of the magnet 27, air flow formed by vibration of the diaphragm 29 is transmitted to the ear hole in a directional manner through the sound outlet hole 31, vibration of the diaphragm 29 emits low-frequency effect, vibration of the vibration spring 24 emits medium-high frequency effect, and the listening feeling is basically consistent with that of a traditional earphone.
[0025] Embodiment 2
[0026] Please refer to Figs. 4-6 The utility model provides a technical scheme: a novel bone air conduction shaker, comprising an acoustic cavity 10, the acoustic cavity 10 one side is provided with the mounting cavity of opening, the mounting cavity inside is provided with shaker assembly 20, the mounting cavity opening is provided with silica gel shock pad 40, through silica gel shock pad 40 will mounting cavity block up, form airtight cavity, and there is certain gap between shaker assembly 20 and silica gel shock pad 40, allow vibration distance, in airtight cavity, shaker assembly 20 because there is diaphragm 29, diaphragm 29 vibration compression airtight cavity air, can cause the vibration of silica gel shock pad 40 that sticks to human body part, and low-frequency effect is effectively increased.
[0027] The shaker assembly 20 comprises a shaker cavity 21, and the back of the shaker cavity 21 is provided with a PCBA board 25; the inside of the shaker cavity 21 is provided with a structural frame 22, the inside of the structural frame 22 is provided with a demagnetization sheet 26, the front of the demagnetization sheet 26 is provided with a magnet 27, the outside of the structural frame 22 is provided with a coil 23, the front of the structural frame 22 is sleeved with a magnet cover 28, the magnet cover 28 covers the magnet 27, and the edge between the front of the shaker cavity 21 and the magnet cover 28 is provided with a diaphragm 29; the outside of the coil 23 is sleeved with a vibration spring 24, and the outer edge of the vibration spring 24 is in contact with the inner wall of the shaker cavity 21.
[0028] The diaphragm 29 can effectively cause air vibration of the airtight cavity, and cause the silica gel shock pad 40 to emit better low-frequency effect.
[0029] Working principle: in use, by installing acoustic front cavity 30 on the front of acoustic cavity 10, an open cavity can be formed, by installing silica gel damping sheet 40 on the front of acoustic cavity 10, a closed cavity can be formed, whether it is a closed cavity or an open cavity, both can effectively improve the low frequency effect, the diaphragm 29 of the closed cavity cooperates with the silica gel damping sheet 40 to effectively transmit low frequency, while reducing vibration; in the open cavity, the vibration part is responsible for the transmission of medium and high frequency sound, and the diaphragm 29 part is responsible for the transmission of medium and low frequency sound, and the effect is better.
[0030] Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative labor belong to the range of protection of the utility model.
Claims
1. A new type of bone conduction transducer, comprising an acoustic cavity (10) with an open mounting cavity on one side, and a transducer assembly (20) inside the mounting cavity, characterized in that: The subwoofer assembly (20) comprises a subwoofer cavity (21), and the back of the subwoofer cavity (21) is provided with a PCBA board (25); The subwoofer cavity (21) is internally provided with a structure frame (22), the structure frame (22) is internally provided with a degaussing sheet (26), the front of the degaussing sheet (26) is provided with a magnet (27), the outer side of the structure frame (22) is provided with a coil (23), the front of the structure frame (22) is sleeved with a magnet cover (28), the magnet cover (28) covers the magnet (27), and the edge between the front of the subwoofer cavity (21) and the magnet cover (28) is provided with a vibrating diaphragm (29).
2. A novel bone conduction transducer according to claim 1, characterized in that: The outer side of the coil (23) is sleeved with a vibration spring plate (24), and the outer edge of the vibration spring plate (24) is in contact with the inner wall of the subwoofer cavity (21).
3. A novel bone conduction transducer according to any one of claims 1-2, characterized in that: The opening of the mounting cavity is provided with an acoustic front cavity (30).
4. A novel bone conduction transducer according to claim 3, wherein: The acoustic front cavity (30) is provided with a sound hole (31) on one side.
5. A novel bone conduction transducer according to any one of claims 1-2, characterized in that: The opening of the mounting cavity is provided with a silica gel shock absorbing sheet (40).