Hearing aid bone conduction sensor

Abstract

The utility model discloses a hearing aid bone conduction sensor, and relates to the field of bone conduction sensors. According to the utility model, the T-shaped yoke, the magnet yoke, the magnetic steel, the inductor, the magnetic pole, the height limiting piece, the metal sheet, the vibrator conductor, the gasket, the spring connector and the pcb are arranged, so that after the device is electrified, the vibrator conductor is driven to start to vibrate through the inductor under the conversion of the pcb, meanwhile, the vibration conducted by the vibrator is more stable due to the arrangement of the gasket, and the service life of the vibrator is prolonged. Through stable vibration conducted by the vibrators, signals are conducted to the auditory center, the device does not need to be worn outside the auditory meatus, the comfort of a wearer is improved, meanwhile, through the arrangement of a first screw rod, a second screw rod, a fixing nut and a sealing cover, the device can be conveniently disassembled, a technician can conveniently overhaul the device, and the practicability is high. Meanwhile, through the arrangement of a sealing cover, it is avoided that fixing nuts are rusted due to long-term contact with the outside, dismounting of the device is affected, and the practicability of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of bone conduction sensors, specifically bone conduction sensors for hearing aids. Background Technology

[0002] Hearing impairment refers to abnormalities in the sound transmission, sound perception, and overall sound analysis functions of the auditory system, leading to hearing loss or deafness, making it difficult for people to receive and understand auditory information. This impairment can be caused by a variety of factors, including genetics, disease, trauma, noise exposure, and aging. The degree and type of hearing impairment vary widely, ranging from mild hearing loss to complete deafness. It can affect an individual's social, learning, and work abilities, and may even lead to psychological problems such as loneliness and depression.

[0003] A hearing aid is a device that helps people with hearing impairments improve their hearing. It mainly compensates for hearing loss by amplifying sound signals. Its working principle is that sound is converted into an electrical signal by a microphone, amplified by an amplifier, and then converted into an echo signal by a receiver and transmitted to the ear. There are many types of hearing aids, such as those based on wearing method (e.g., behind-the-ear, in-the-ear, etc.) and those based on signal processing method (e.g., analog and digital). Digital hearing aids can make more precise sound adjustments based on the user's hearing condition and the environment in which they are used.

[0004] Traditional hearing aids use in-ear speakers, either balanced armature or dynamic, which fit the ear canal better and reduce external noise interference. They are also relatively discreet. However, prolonged use of in-ear speakers can lead to poor wearing comfort. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a bone conduction sensor for hearing aids to solve the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hearing aid bone conduction sensor, including a housing, a first screw and a spring connector disposed within the housing; the housing includes a rear shell, a front shell and a sealing cover that are separately disposed; the rear shell and the front shell are engaged by a snap-fit ​​structure, and the outer wall of the rear shell has an external frame interface, and a power and data interface is installed inside the rear shell; a magnetic pole is slidably mounted on the outer wall of the first screw, and a metal plate is fixedly mounted on the outer wall of the magnetic pole; a fixing nut is threaded onto the end of the first screw; a vibrator is fixedly mounted on the outer wall of the metal plate, and a washer is fixedly mounted on the outer wall of the vibrator; a height limiting component is slidably mounted inside the metal plate, and a second screw is slidably mounted inside the height limiting component; a magnetic yoke is threaded onto the outer wall of the second screw; a T-shaped yoke is installed inside the magnetic yoke, and a magnet is sleeved on the outer wall of the T-shaped yoke, and an inductor is fixedly mounted on the inner wall of the magnet; a PCB board is mounted on the end of the spring connector.

[0007] By adopting the above technical solution, it is ensured that when the device is powered on, the inductor, converted by the PCB board, drives the vibrator to start vibrating. At the same time, due to the setting of the gasket, the vibration transmitted by the vibrator is more stable. Through the stable vibration transmitted by the vibrator, the signal is transmitted to the auditory center, so that the device does not need to be worn outside the ear canal, increasing the wearer's comfort. At the same time, the setting of the first screw, the second screw, the fixing nut and the sealing cover makes the device easy to disassemble, so as to facilitate the maintenance of the device by technicians. In addition, the setting of the sealing cover prevents the fixing nut from rusting due to long-term contact with the outside environment, which would affect the disassembly of the device, further increasing the practicality of the device.

[0008] Furthermore, the other end of the spring connector is attached to the inner wall of the rear housing, and the spring connector is located inside the rear housing near the external frame interface.

[0009] By adopting the above technical solution, it is ensured that the spring connector can be smoothly connected to the external rack interface.

[0010] Furthermore, the outer wall of the rear shell, away from the front shell, has a groove corresponding to the sealing cover, and the fixing nut is located between the rear shell and the sealing cover.

[0011] By adopting the above technical solution, it is ensured that the vibration can be better transmitted through the rear shell.

[0012] Furthermore, the magnet has a groove inside that corresponds to the T-shaped yoke, and the T-shaped yoke has a wiring groove inside that corresponds to the inductor.

[0013] By adopting the above technical solutions, it is ensured that the PCB board can better transmit signals to the inductor.

[0014] Furthermore, the second screw has two sets symmetrically arranged inside the rear housing, with the magnetic poles fixedly connected to the inductor.

[0015] By adopting the above technical solutions, we can ensure that the connections between the components inside the rear shell are tighter.

[0016] Furthermore, the external frame interface is symmetrically arranged in two sets on the outer wall of the rear shell, and a through hole corresponding to the first screw is provided inside the rear shell.

[0017] By adopting the above technical solution, it is ensured that the first screw can pass smoothly through the rear shell and be threadedly connected to the fixing nut.

[0018] Furthermore, the rear shell matches the front shell to form a closed structure, and the outer wall of the rear shell away from the front shell is designed with an arc shape, and the top horizontal plane of the sealing cover is at the same arc as the top horizontal plane of the rear shell.

[0019] By adopting the above technical solution, it is ensured that the sealing cover will not affect the user's wearing comfort.

[0020] This invention incorporates a T-shaped yoke, a magnetic yoke, a magnet, an inductor, magnetic poles, a height limiter, a metal sheet, a vibrator conductor, a gasket, a spring connector, and a PCB board. This design ensures that when the device is powered on, the inductor, through the PCB board's conversion, drives the vibrator to vibrate. The gasket further stabilizes the vibration transmitted by the vibrator, allowing the signal to be transmitted to the auditory center. This eliminates the need for the device to be worn outside the ear canal, increasing the wearer's comfort. The first screw, second screw, fixing nut, and sealing cap facilitate easy disassembly for technicians to inspect the device. The sealing cap also prevents the fixing nut from corroding due to prolonged exposure to external materials, thus enhancing the device's practicality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0023] Figure 3 This is a side view of the structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the front structure of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the present invention.

[0026] In the diagram: 1. Rear shell; 2. Front shell; 3. First screw; 4. Second screw; 5. Fixing nut; 6. Sealing cap; 7. T-shaped yoke; 8. Magnetic yoke; 9. Magnet; 10. Inductor; 11. Magnetic pole; 12. Height limiter; 13. Metal sheet; 14. Vibrator conductor; 15. Gasket; 16. Spring connector; 17. PCB board; 18. Power and data interface; 19. External rack interface. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The embodiments of this utility model will be described below based on its overall structure.

[0029] Bone conduction sensors for hearing aids, such as Figure 1 - Figure 5As shown, the device includes a housing, a first screw 3 disposed within the housing, and a spring connector 16. The housing includes a separate rear housing 1, a front housing 2, and a sealing cover 6. The rear housing 1 and the front housing 2 are engaged by a snap-fit ​​structure, and the outer wall of the rear housing 1 has an external rack interface 19, and a power and data interface 18 is installed inside the rear housing 1. A magnetic pole 11 is slidably mounted on the outer wall of the first screw 3, and a metal plate 13 is fixedly mounted on the outer wall of the magnetic pole 11. A fixing nut is threaded onto the end of the first screw 3. 5. A vibrator conductor 14 is fixedly installed on the outer wall of the metal sheet 13, and a gasket 15 is fixedly installed on the outer wall of the vibrator conductor 14. A height limiting component 12 is slidably installed inside the metal sheet 13, and a second screw 4 is slidably installed inside the height limiting component 12. A magnetic yoke 8 is threaded on the outer wall of the second screw 4. A T-shaped yoke 7 is installed inside the magnetic yoke 8, and a magnet 9 is sleeved on the outer wall of the T-shaped yoke 7. An inductor 10 is fixedly installed on the inner wall of the magnet 9. A PCB board 17 is installed at the end of the spring connector 16.

[0030] Please see Figure 2 The other end of the spring connector 16 is attached to the inner wall of the rear housing 1. The spring connector 16 restricts the PCB board 17 to be more stable inside the rear housing 1. The spring connector 16 is located inside the rear housing 1 near the external rack interface 19, ensuring that the spring connector 16 can be smoothly connected to the external rack interface 19.

[0031] Please see Figure 1 - Figure 5 The outer wall of the rear shell 1, away from the front shell 2, has a slot corresponding to the sealing cover 6, and the fixing nut 5 is located between the rear shell 1 and the sealing cover 6. By restricting the oscillator conduction 14 by the fixing nut 5, the oscillator conduction 14 is in contact with the rear shell 1, ensuring that the oscillator conduction 14 can better conduct vibration through the rear shell 1.

[0032] Please see Figure 2 The magnet 9 has a groove corresponding to the T-shaped yoke 7, and the T-shaped yoke 7 has a wiring groove corresponding to the inductor 10. The wiring groove allows the inductor 10 to be smoothly connected to the PCB board 17, ensuring that the PCB board 17 can better transmit signals to the inductor 10.

[0033] Please see Figure 2 The second screw 4 is symmetrically arranged in two sets inside the rear shell 1. The magnetic pole 11 is fixedly connected to the inductor 10 to ensure that the components inside the rear shell 1 are more tightly connected.

[0034] Please see Figure 1 - Figure 5 Two sets of external frame interfaces 19 are symmetrically arranged on the outer wall of the rear shell 1. The external frame interfaces 19 enable the device to be better connected to the equipment frame. The rear shell 1 is provided with a through hole corresponding to the first screw 3, so that the first screw 3 can pass smoothly through the rear shell 1 and be threadedly connected to the fixing nut 5.

[0035] Please see Figure 1 - Figure 5 The rear shell 1 and the front shell 2 are matched to form a closed structure. The outer wall of the rear shell 1, away from the front shell 2, has an arc-shaped design, and the top horizontal plane of the sealing cover 6 is at the same arc as the top horizontal plane of the rear shell. This allows the device to better adapt to the human skeleton and ensures that the placement of the sealing cover 6 does not affect the user's wearing comfort.

[0036] The working principle of this utility model is as follows: When the user needs to disassemble the back cover 1, he / she first opens the back cover 1, and then separates the first screw 3 from the fixing nut 5 by rotating the first screw 3. Then, he / she separates the second screw 4 from the back cover 1 by rotating the second screw 4. At this time, the components inside the back cover 1 are separated.

[0037] When the device is powered on, the current is converted into an electrical signal through the inductor, which in turn causes the transducer 14 to vibrate. Through the regular vibration of the transducer 14, the signal is transmitted to the auditory center, thus achieving the effect of hearing assistance.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A bone conduction transducer for a hearing aid, characterized in that: Includes a housing, a first screw (3) disposed within the housing, and a spring connector (16); The outer shell includes a rear shell (1), a front shell (2), and a sealing cover (6) that are separately configured; The rear shell (1) and the front shell (2) are engaged and installed by a snap-fit ​​structure, and an external rack interface (19) is provided on the outer wall of the rear shell (1), and a power data interface (18) is installed inside the rear shell (1). The first screw (3) has a magnetic pole (11) slidably mounted on its outer wall, and a metal plate (13) is fixedly mounted on the outer wall of the magnetic pole (11). A fixing nut (5) is threadedly mounted on the end of the first screw (3). A vibrator conductor (14) is fixedly mounted on the outer wall of the metal plate (13), and a gasket (15) is fixedly mounted on the outer wall of the vibrator conductor (14). A height limiting component (12) is slidably mounted inside the metal plate (13), and a second screw (4) is slidably mounted inside the height limiting component (12). A magnetic yoke (8) is threadedly mounted on the outer wall of the second screw (4). A T-shaped yoke (7) is installed inside the magnetic yoke (8), and a magnet (9) is sleeved on the outer wall of the T-shaped yoke (7). An inductor (10) is fixedly mounted on the inner wall of the magnet (9). A PCB board (17) is mounted on the end of the spring connector (16).

2. The bone conduction sensor of claim 1, wherein: The other end of the spring connector (16) is attached to the inner wall of the rear shell (1), and the spring connector (16) is located inside the rear shell (1) near the external frame interface (19).

3. The bone conduction sensor of claim 1, wherein: The outer wall of the rear shell (1) away from the front shell (2) is provided with a slot corresponding to the sealing cover (6), and the fixing nut (5) is located between the rear shell (1) and the sealing cover (6).

4. The bone conduction sensor of claim 1, wherein: The magnet (9) has a groove corresponding to the T-shaped yoke (7), and the T-shaped yoke (7) has a wiring groove corresponding to the inductor (10).

5. The bone conduction sensor of claim 1, wherein: The second screw (4) is symmetrically arranged in two sets inside the rear shell (1), and the magnetic pole (11) is fixedly connected to the inductor (10).

6. The bone conduction sensor of claim 1, wherein: The external frame interface (19) is symmetrically arranged in two sets on the outer wall of the rear shell (1), and the rear shell (1) is provided with through holes corresponding to the first screw (3).

7. The bone conduction sensor of claim 1, wherein: The rear shell (1) and the front shell (2) are matched to form a closed structure. The outer wall of the rear shell (1) away from the front shell (2) is designed with an arc shape, and the top horizontal plane of the sealing cover (6) and the top horizontal plane of the rear shell (1) are at the same arc.

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