Glasses type hearing aid

Abstract

The invention relates to a glasses type hearing aid. The glasses type hearing aid comprises a glasses frame, lenses, two glasses legs and two hearing aid main bodies, the lenses are arranged in the glasses frame, and the two glasses legs are respectively arranged on two sides of the glasses frame; the free ends of the two glasses legs are respectively connected to the two hearing aid main bodies; a sound guide groove and a resonance assembly are arranged in each glasses leg in the direction from the glasses frame to the hearing aid main body; inlets of the sound guide grooves are close to the mirror frame; a first outlet of the sound guide groove is communicated with an air guide sound transmission system of the hearing aid main body; the bone conduction hearing aid has the beneficial effects that dual noise reduction mechanisms work cooperatively, so that even if a user stays in noisy environments such as a shopping mall and a traffic intersection, noise interference can be effectively shielded, the voice signal definition is remarkably improved, and the hearing aid effect is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hearing aids, and in particular to a glasses-type hearing aid. Background Art

[0002] Existing hearing aids are not sufficiently adaptable to patients with conductive hearing impairments such as external and middle ear deformities (such as microtia), those after chronic otitis media surgery, and those with auditory canal atresia. Due to structural abnormalities in the external or middle ear, the effect of air conduction hearing aids alone is limited for such patients; while traditional bone conduction hearing aids have problems such as poor high-frequency response and discomfort in wearing. At the same time, patients with mixed deafness (such as presbycusis combined with otitis media) need to compensate for both air conduction and bone conduction hearing loss, and existing devices find it difficult to achieve dual-mode synergy. Hearing loss not only makes communication difficult for such people, affecting their social interaction and mental health, but may also increase their risk of accidents and reduce their independence and sense of security in life.

[0003] At present, most traditional hearing aids only use air conduction or bone conduction systems for hearing aids. The air conduction system transmits sound through the air and is easily affected by external environmental noise. For some people with mainly low-frequency hearing loss and with / without mild to moderate sensorineural hearing loss, the hearing aid effect may not be ideal. The bone conduction system transmits sound to the inner ear through skull vibration. Although it can avoid interference from external noise to a certain extent, the amplification effect of low-frequency sound is not as good as the air conduction system. Therefore, a single sound transmission method is difficult to fully meet the diverse hearing needs of patients with conductive or mixed hearing loss. Summary of the Invention

[0004] (1) Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the existing technology, the present invention provides a glasses-type hearing aid, which provides a fusion hearing aid solution of air conduction and bone conduction collaborative amplification for patients with conductive / mixed hearing loss. It realizes pre-filtering of environmental noise through physical structure design and reduces the computational load of the electronic noise reduction algorithm, which solves the technical problem that the existing technology cannot meet the hearing needs of patients.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] The present invention provides a glasses-type hearing aid, comprising a glasses frame, a lens, two temples, and two hearing aid bodies; the lens is arranged in the glasses frame, and the two temples are respectively arranged on both sides of the glasses frame; the free ends of the two temples are respectively connected to the two hearing aid bodies; a sound guide groove and a resonance component are provided inside the temples in the direction from the glasses frame to the hearing aid body; the entrance of the sound guide groove is close to the glasses frame; the first outlet of the sound guide groove is connected to the air conduction sound transmission system of the hearing aid body; the second outlet of the sound guide groove is connected to the resonance component, and the resonance component is connected to the bone conduction sound transmission system of the hearing aid body.

[0009] Optionally, a plurality of periodically arranged saw teeth are provided in the sound guide groove; the plurality of saw teeth form a low-frequency suppression zone, a transition matching zone and a high-frequency optimization zone distributed in the direction from the frame to the hearing aid body in the sound guide groove; the sawtooth arrangement density in the low-frequency suppression zone is smaller than that in the transition matching zone, and the sawtooth arrangement density in the transition matching zone is smaller than that in the high-frequency optimization zone; the sawtooth tooth depth in the low-frequency suppression zone is greater than that in the transition matching zone, and the sawtooth tooth depth in the transition matching zone is greater than that in the high-frequency optimization zone.

[0010] Optionally, the tooth pitch in the low-frequency suppression zone is 3.5-3.7 mm, and the tooth depth is 0.8-1.2 mm; the tooth pitch in the transition matching zone is 1.3-1.5 mm, and the tooth depth is 0.4-0.6 mm; the tooth pitch in the high-frequency optimization zone is 1-1.2 mm, and the tooth depth is 0.15-0.25 mm.

[0011] Optionally, the angle between the incident side of the sawtooth and the axis of the sound guiding groove is 33° to 37°; the angle between the exit side of the sawtooth and the axis of the sound guiding groove is 68° to 72°.

[0012] Optionally, the resonance component includes a resonator, a conical coupling pad and a waveguide layer; the second outlet of the sound guide groove is connected to the resonator, the resonator is connected to the cone tip of the conical coupling pad, and the cone bottom of the conical coupling pad is connected to the bone conduction sound transmission system through the waveguide layer.

[0013] Optionally, the resonator includes an integrally formed connecting tube and a teardrop-shaped cavity; the inlet of the connecting tube is connected to the second outlet of the sound guide groove; and the conical tip of the conical coupling pad is connected to the teardrop-shaped cavity.

[0014] Optionally, the resonator further includes an anti-interference plate; the anti-interference plate is flexibly hinged to the top of the teardrop-shaped cavity, and the distance between the anti-interference plate and the outlet of the connecting pipe is greater than 8 mm.

[0015] Optionally, the hearing aid body includes a protective shell, a microphone, a bone conduction sensor, a DSP, a control circuit, a receiver and a bone conduction vibrator; the microphone and the DSP are arranged inside the protective shell, and the receiver and the bone conduction vibrator are respectively arranged at both ends of the protective shell; the microphone and the bone conduction sensor are connected to the DSP respectively, and the DSP is connected to the receiver and the bone conduction vibrator through the control circuit; the protective shell is connected to the free end of the temple; the microphone, the DSP and the receiver constitute an air conduction sound transmission system, and the microphone is connected to the second outlet of the sound guide groove; the bone conduction sensor, the DSP and the bone conduction vibrator constitute a bone conduction sound transmission system, and the bone conduction sensor is connected to the resonance component.

[0016] Optionally, the control circuit includes an air conduction circuit and a bone conduction circuit; the DSP is connected to the receiver through the air conduction circuit; the DSP is connected to a potentiometer provided on the air conduction circuit through the bone conduction circuit; a sliding rheostat is provided on the bone conduction circuit; the resistance adjustment range of the potentiometer and the sliding rheostat is the same, and the linear change of resistance corresponding to the adjustment stroke is the same.

[0017] Optionally, the hearing aid body also includes a volume adjustment component; the volume adjustment component includes an adjustment knob, an air conduction adjustment component and a bone conduction adjustment component; the adjustment knob is set on the protective shell, and the adjustment knob is transmission-connected to the air conduction adjustment component and the bone conduction adjustment component; the air conduction adjustment component is connected to the potentiometer, and the bone conduction adjustment component is connected to the sliding rheostat; by rotating the adjustment knob, the resistance of the potentiometer and the sliding rheostat is synchronously adjusted through the air conduction adjustment component and the bone conduction adjustment component to synchronously realize the volume adjustment of air conduction and bone conduction sound transmission.

[0018] (3) Beneficial effects

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides a glasses-type hearing aid, which integrates the hearing aid body into the end of the temple of the glasses, so that the glasses and the hearing aid are combined into one, which completely changes the way that traditional hearing aids need to be worn separately. For patients with conductive / mixed hearing loss, there is no need for additional operation to wear the hearing aid, which significantly reduces the difficulty of use and improves the convenience of daily use. With the help of the fixing effect of the glasses frame, compared with traditional hearing aids, this design is particularly suitable for young patients with myopia or hyperopia combined with conductive / mixed hearing loss. It is less likely to shift or fall during daily activities (such as walking, lowering the head, exercising, etc.), ensuring that the hearing aid is always in an effective working position. At the same time, the temples can evenly distribute the weight, avoid local pressure on the ears, reduce the discomfort caused by long-term wearing, and improve wearing comfort and compliance. It also has a good protective effect on the psychology of young people who do not want to be found wearing hearing aids. The sawtooth structure of the sound guide groove actively cancels out environmental noise through the principle of sound wave interference (for example, the sawtooth in the low-frequency region reduces traffic noise <500Hz through phase difference). The Helmholtz cavity of the resonant component selectively enhances the 1-3kHz voice frequency band, achieving dual processing of mechanical filtering and electronic noise reduction, significantly improving the signal-to-noise ratio.

[0021] The entrance of the sound guide groove is close to the frame (located at the front end of the temple, close to the temporal side of the face), prioritizing the collection of frontal and lateral ambient sound while avoiding noise behind the head. The sound guide groove can also selectively enhance the transmission efficiency of the mainstream voice energy frequency band of the human voice and suppress low-frequency noise (wind, mechanical noise, and other environmental noise). The resonance component further amplifies the target voice frequency band through the principle of physical resonance, suppressing specific noise frequencies (such as high-frequency drum beats and harsh noises in music), achieving "coarse filtering of environmental sound" and reducing the computational load of subsequent electronic noise reduction. At the same time, the resonance component transmits mechanical vibrations to the bone conduction sound transmission system, converting the sound into skull vibrations and transmitting it to the inner ear. In this way, frequency band screening and noise attenuation are achieved through the sound guide groove and resonance component, pre-processing the original ambient sound into a "cleaner voice base", and then the hearing aid body further eliminates residual noise. The dual noise reduction mechanisms work together to effectively block noise interference even in noisy environments such as shopping malls and traffic intersections, significantly improving the clarity of voice signals and greatly improving the hearing aid effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 1 is a schematic diagram of the overall structure of a glasses-type hearing aid according to embodiment 1 of the present invention;

[0023] Figure 2 1 is a schematic structural diagram of the temple and resonance assembly of Example 1 of the present invention;

[0024] Figure 3 Schematic diagram of the connection relationship between the air conduction sound transmission system and the bone conduction sound transmission system of Example 1 of the present invention.

[0025] [Description of Reference Numerals]

[0026] 1: Frame; 2: Lens; 3: Temple; 4: Hearing aid body; 41: Protective case; 42: Microphone; 43: Bone conduction sensor; 44: DSP; 45: Receiver; 46: Bone conduction vibrator; 47: Potentiometer; 48: Sliding rheostat; 49: Adjustment knob; 5: Sound guide groove; 51: Sawtooth; 61: Conical coupling pad; 62: Waveguide layer; 63: Connecting tube; 64: Teardrop-shaped cavity; 65: Anti-interference plate. DETAILED DESCRIPTION

[0027] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0028] Example 1:

[0029] like Figure 1 As shown, a specific embodiment of the present invention provides a glasses-type hearing aid, including a frame 1, a lens 2, two temples 3 and two hearing aid bodies 4; the lens 2 is arranged in the frame 1, and the two temples 3 are respectively arranged on both sides of the frame 1; the free ends of the two temples 3 are respectively connected to the two hearing aid bodies 4; a sound guide groove 5 and a resonance component are provided inside the temples 3 in the direction from the frame 1 to the hearing aid body 4; the entrance of the sound guide groove 5 is close to the frame 1; the first outlet of the sound guide groove 5 is connected to the air conduction sound transmission system of the hearing aid body 4; the second outlet of the sound guide groove 5 is connected to the resonance component, and the resonance component is connected to the bone conduction sound transmission system of the hearing aid body 4.

[0030] Specifically, the hearing aid body 4 is integrated into the end of the temple 3 of the glasses, so that the glasses and the hearing aid are combined into one, which completely changes the way that traditional hearing aids need to be worn separately. For patients with conductive / mixed hearing loss, there is no need for additional operation to wear the hearing aid, which significantly reduces the difficulty of use and improves the convenience of daily use. With the help of the fixing effect of the glasses frame 1, compared with traditional hearing aids, this design is particularly suitable for young patients with myopia or hyperopia combined with conductive / mixed hearing loss. It is less likely to shift or fall during daily activities (such as walking, lowering the head, exercising, etc.), ensuring that the hearing aid body 4 is always in an effective working position. At the same time, the temple 3 can evenly distribute the weight, avoid local pressure on the ear, reduce the discomfort caused by long-term wearing, and improve wearing comfort and compliance. It also has a good protective effect on the psychology of young people who do not want to be found wearing hearing aids. The sawtooth structure of the sound guide groove actively cancels out environmental noise through the principle of sound wave interference (for example, the sawtooth in the low-frequency region eliminates traffic noise <500Hz through phase difference), and the Helmholtz cavity of the resonance component selectively enhances the 1-3kHz voice frequency band, realizing dual processing of mechanical filtering and electronic noise reduction, and significantly improving the signal-to-noise ratio. The entrance of the sound guide groove 5 is close to the frame 1 (located at the front end of the temple 3, close to the temporal side of the face), giving priority to collecting front and side environmental sounds, avoiding noise behind the head. The sound guide groove 5 can also selectively enhance the conduction efficiency of the mainstream voice energy frequency band of the human voice, and suppress low-frequency noise (environmental noise such as wind noise and mechanical noise). The resonance component further amplifies the target voice frequency band through the principle of physical resonance, suppresses specific noise frequencies (such as high-frequency drum beats and harsh noises in music), realizes "coarse filtering of environmental sounds", and reduces the computational load of subsequent electronic noise reduction. At the same time, the resonance component transmits mechanical vibrations to the bone conduction sound transmission system, converting the sound into skull vibrations and transmitting it to the inner ear. In this way, frequency band screening and noise attenuation are achieved through the sound guide groove 5 and the resonance component, and the original ambient sound is preprocessed into a "speech base with improved cleanliness". The residual noise is further eliminated through the hearing aid body 4. The dual noise reduction mechanisms work together to effectively shield the user from noise interference even in noisy environments such as shopping malls and traffic intersections, significantly improving the clarity of the voice signal and greatly improving the hearing aid effect.

[0031] Further, if Figure 2As shown, the sound guide groove 5 is provided with a plurality of periodically arranged saw teeth 51. These saw teeth 51 form a low-frequency suppression zone, a transition matching zone, and a high-frequency optimization zone within the sound guide groove 5, extending from the frame 1 to the hearing aid body 4. In this embodiment, the arrangement density of saw teeth 51 in the low-frequency suppression zone is less than that in the transition matching zone, which in turn is less than that in the high-frequency optimization zone. The saw teeth 51 in the low-frequency suppression zone are deeper than those in the transition matching zone, which in turn is deeper than those in the high-frequency optimization zone. The low density and deep saw teeth 51 in the low-frequency suppression zone within the sound guide groove 5 effectively reflect and scatter low-frequency sounds, thereby suppressing the propagation of low-frequency noise. For example, low-frequency humming sounds in the environment or low-frequency vibrations from machinery will experience significant energy attenuation after passing through the low-frequency suppression zone, reducing the amount of low-frequency noise that enters the hearing aid's subsequent processing, preventing interference from low-frequency noise on the sound signal and improving overall sound clarity. The arrangement density and tooth depth of the saw teeth 51 in the transition matching zone are between the low-frequency suppression zone and the high-frequency optimization zone, providing a smooth transition and making the frequency connection between low and high frequencies more natural. In this area, the frequency characteristics of the sound can transition more smoothly from low to high frequencies, reducing the distortion caused by frequency mutations and making the sound sound more coherent and comfortable. The high-frequency optimization zone has a high arrangement density and a small tooth depth of the saw teeth 51, which is conducive to focusing and enhancing high-frequency sounds, and can better capture and retain high-frequency sound signals, such as the sibilant sounds of speech, birdsong, and other high-frequency details. By optimizing high-frequency sounds, the clarity and intelligibility of the sounds are improved, allowing patients with conductive / mixed hearing loss to hear various sounds more clearly.

[0032] Preferably, in this embodiment, the tooth pitch in the low-frequency suppression zone is 3.5 to 3.7 mm, and the tooth depth is 0.8 to 1.2 mm. Low-frequency sound has a longer wavelength, and a larger tooth depth and a relatively larger tooth pitch can match the wavelength characteristics of low-frequency sound. When low-frequency sound enters the low-frequency suppression zone, the larger tooth depth causes the sound to be reflected and scattered multiple times between the saw teeth 51, extending the sound propagation path and consuming a large amount of low-frequency sound energy. For example, the low-frequency hum generated by the operation of the air conditioner and the low-frequency vibration sound of vehicles driving on the street will have their energy significantly attenuated after passing through this area. This effectively reduces the interference of low-frequency noise on subsequent sound processing links, providing a good foundation for subsequent clearer processing and amplification of useful sound signals. The tooth pitch in the transition matching zone is 1.3 to 1.5 mm, and the tooth depth is 0.4 to 0.6 mm, which can make the transition between low and high frequencies more delicate, ensuring that the sound signals of different frequency bands will not have obvious breakpoints or mutations during the transition process, reducing the distortion caused by frequency mutations, making the sound sound more coherent and comfortable, and avoiding the abruptness caused by unnatural frequency connection. The tooth pitch in the high-frequency optimization zone is 1 to 1.2 mm, and the tooth depth is 0.15 to 0.25 mm. The wavelength of high-frequency sound is shorter. The smaller tooth depth and relatively small tooth pitch can better adapt to the characteristics of high-frequency sound, which is conducive to focusing and enhancing high-frequency sound, so that high-frequency signals can pass through the sound guide groove 5 more concentratedly during propagation. By enhancing the high-frequency signal, the clarity and intelligibility of the sound are improved, allowing users to hear various high-frequency sound information more clearly. The parameter settings of the tooth pitch and tooth depth in the high-frequency optimization zone provided in this embodiment can reduce the loss of high-frequency signals during propagation. High-frequency signals are relatively weak and easily interfered and attenuated by various factors. Smaller tooth depth and tooth pitch can reduce the contact area and reflection times of high-frequency sound with the surface of the saw teeth 51, thereby reducing the energy loss of high-frequency signals and ensuring that high-frequency signals can be more effectively transmitted to the subsequent sound processing system.

[0033] Preferably, in this embodiment, the angle between the incident side of the sawtooth 51 and the axis of the sound-guiding slot 5 is 33° to 37°. This enhances sound reflection and scattering when sound enters from the incident side of the sawtooth 51. The incident angle provided in this embodiment allows sound to be reflected multiple times between the sawtooth 51, effectively regulating sound of different frequencies. For low-frequency sound, this reflection increases its propagation path, consuming more energy and suppressing low-frequency noise. For high-frequency sound, the reflection further concentrates the signal, enhancing the intensity of the high-frequency signal. Furthermore, the angle between the exit side of the sawtooth 51 and the axis of the sound-guiding slot 5 is 68° to 72°. This angle range effectively guides sound processed by the sawtooth 51 in the appropriate direction, allowing it to propagate more accurately toward the exit of the sound-guiding slot 5 and reducing scattering and reflection losses within the sound-guiding slot 5. This helps more efficiently transmit the processed sound to the subsequent sound transmission system, improving the quality and efficiency of sound transmission. It also positively impacts the frequency distribution of the sound. After being processed by the sawtooth 51, sounds of different frequencies are transmitted at specific emission angles, which can make the frequency components of the sound more evenly distributed within the sound guide groove 5, avoiding excessive concentration or dispersion of certain frequencies. This helps to improve the overall balance and clarity of the sound, making the final sound more natural and comfortable.

[0034] Further, if Figure 2 As shown, the resonance component includes a resonator, a conical coupling pad 61 and a waveguide layer 62; the second outlet of the sound guide groove 5 is connected to the resonator, the resonator is connected to the cone tip of the conical coupling pad 61, and the cone bottom of the conical coupling pad 61 is connected to the bone conduction sound transmission system through the waveguide layer 62. The resonator can efficiently convert sound energy into vibration energy, selectively amplify the target frequency, and enhance the intensity of subsequent bone conduction vibration. The vibration output by the resonator is transmitted from the cone tip (small area, high impedance), and gradually expands to the cone bottom (large area, low impedance) through the conical structure, which better matches the vibration impedance of the skull. In addition, the conical structure has a focusing effect on vibration, which can concentrate the scattered vibration energy to the surface of the skull. The waveguide layer 62 can suppress the high-frequency resonance peak, making the frequency response curve of the vibration transmission flatter.

[0035] Further, if Figure 2As shown, the resonator includes an integrally formed connecting tube 63 and a teardrop-shaped cavity 64; the inlet of the connecting tube 63 is connected to the second outlet of the sound guide groove 5; and the tapered tip of the conical coupling pad 61 is connected to the teardrop-shaped cavity 64. The connecting tube 63 and the teardrop-shaped cavity 64 together form a Helmholtz resonant cavity. When a sound wave enters the Helmholtz resonant cavity through the second outlet of the sound guide groove 5, the sound pressure fluctuations at a specific frequency trigger mechanical resonance in the cavity. This resonance manifests as a micro-vibration of the cavity wall rather than direct transmission of airborne sound. The teardrop-shaped cavity 64 efficiently converts sound energy into vibration energy, selectively amplifying the target frequency during the conversion process and enhancing the intensity of subsequent bone-conducted vibration. The droplet-shaped, tapered cross-section creates an energy gradient distribution as the sound wave propagates within the cavity. The sound pressure in the head region (at the outlet of the connecting tube 63) is higher, facilitating efficient absorption of the initial sound energy. The sound pressure in the tail region gradually decreases, avoiding nonlinear distortion caused by concentrated sound energy. This allows the resonator to maintain a linear response over a wide frequency range and reduce harmonic distortion.

[0036] In this embodiment, the volume of the water droplet-shaped cavity 64 is 0.1-0.2 cm 3 The diameter of the connecting tube 63 is 1 to 1.5 mm, the length of the connecting tube 63 is 3 to 5 mm, and the calculation formula of the Helmholtz resonance frequency f is:

[0037]

[0038] Wherein, f is the Helmholtz resonance frequency, c is the speed of sound in air, A is the cross-sectional area of ​​the connecting tube 63 , V is the volume of the teardrop-shaped cavity 64 , and L is the length of the connecting tube 63 .

[0039] Further, if Figure 2 As shown, in this embodiment, the resonator further includes an anti-interference plate 65; the anti-interference plate 65 is flexibly hinged to the top of the teardrop-shaped cavity 64, and the distance between the anti-interference plate 65 and the outlet of the connecting pipe 63 is greater than 8 mm. The anti-interference plate 65 prevents unnecessary interference and reflection of sound within the resonator, thereby avoiding distortion and interference of the sound signal.

[0040] Further, if Figure 1 and Figure 3As shown, the hearing aid body 4 includes a protective shell 41, a microphone 42, a bone conduction sensor 43, a DSP (Digital Signal Process) 44, a control circuit, a receiver 45 and a bone conduction vibrator 46; the microphone 42 and the DSP 44 are arranged inside the protective shell 41, and the receiver 45 and the bone conduction vibrator 46 are respectively arranged at both ends of the protective shell 41; the microphone 42 and the bone conduction sensor 43 are respectively connected to the DSP 44, and the DSP 44 is connected to the receiver 45 and the bone conduction vibrator 46 through the control circuit; the protective shell 41 is connected to the free end of the temple 3; the microphone 42, the DSP 44 and the receiver 45 constitute an air conduction sound transmission system, and the microphone 42 is connected to the second outlet of the sound guide groove 5; the bone conduction sensor 43, the DSP 44 and the bone conduction vibrator 46 constitute a bone conduction sound transmission system, and the bone conduction sensor 43 is connected to the resonance component. Microphone 42 collects ambient sound pre-processed by sound guide trough 5. DSP 44 further executes digital noise reduction algorithms (such as adaptive filtering and beamforming) to refine high-frequency noise (such as wind and keyboard sounds). The processed signal is output through receiver 45. Bone conduction sensor 43 receives the skull vibration signal (rich in mid-frequency speech energy) transmitted by the resonant component. DSP 44 independently amplifies and reduces noise, suppressing mechanical noise (such as joint friction) during the vibration transmission process. The signal is ultimately output through bone conduction vibrator 46. This dual-path parallel processing allows air conduction to focus on high-frequency details while bone conduction enhances mid-frequency speech, significantly improving speech clarity in noisy environments.

[0041] Furthermore, the control circuit includes an air conduction circuit and a bone conduction circuit; the DSP44 is connected to the receiver 45 through the air conduction circuit; the DSP44 is connected to the air conduction circuit through the bone conduction circuit. A potentiometer 47 is provided on the air conduction circuit; a sliding rheostat 48 is provided on the bone conduction circuit; the resistance adjustment range of the potentiometer 47 and the sliding rheostat 48 is the same, and the linear change of the resistance corresponding to the adjustment stroke is the same. In this embodiment, the potentiometer 47 can achieve a gain adjustment of 0 to 35 dB, especially to compensate for high-frequency hearing loss, and adapt to the high-frequency decay hearing curve commonly seen in elderly users; the sliding rheostat 48 can also achieve a gain adjustment of 0 to 35 dB, focusing on optimizing the intermediate frequency response, and coordinating with the physical amplification effect of the Helmholtz resonator to form a "physical + electronic" dual intermediate frequency enhancement. The adjustment strokes of the potentiometer 47 and the sliding rheostat 48 correspond to the same linear change in resistance, that is, the linearity of the resistance change of the air conduction circuit and the bone conduction circuit is matched. For example, each 1mm adjustment stroke corresponds to a 1dB gain change, ensuring that the volume of the two channels changes synchronously and avoiding auditory discomfort caused by an imbalance in the volume of air conduction and bone conduction.

[0042] Furthermore, the hearing aid body 4 also includes a volume adjustment assembly; the volume adjustment assembly includes an adjustment knob 49, an air conduction adjustment assembly, and a bone conduction adjustment assembly; the adjustment knob 49 is disposed on the protective housing 41 and is transmission-connected to the air conduction adjustment assembly and the bone conduction adjustment assembly; the air conduction adjustment assembly is connected to a potentiometer 47, and the bone conduction adjustment assembly is connected to a sliding rheostat 48; by rotating the adjustment knob 49, the resistance of the potentiometer 47 and the sliding rheostat 48 are synchronously adjusted through the air conduction adjustment assembly and the bone conduction adjustment assembly to achieve simultaneous volume adjustment of the air and bone conduction transmissions. Specifically, the adjustment knob 49 is provided with a driving gear; the air conduction adjustment assembly includes an air conduction adjustment screw, an air conduction adjustment nut, and a first transmission gear; the air conduction adjustment screw and the first transmission gear are connected to the driving gear, and the air conduction adjustment screw is connected to the travel switch of the potentiometer 47 via the air conduction adjustment nut. The bone conduction adjustment assembly includes a bone conduction adjustment screw, a bone conduction adjustment nut, and a second transmission gear. The bone conduction adjustment screw and the second transmission gear are connected to the driving gear, and the bone conduction adjustment screw is connected to the travel switch of the sliding rheostat 48 through the bone conduction adjustment nut. Turning the adjustment knob 49 simultaneously drives the air conduction adjustment nut and the bone conduction adjustment nut, thereby achieving simultaneous adjustment of the volume of both channels.

[0043] The usage of the glasses-type hearing aid provided in this embodiment is that patients with conductive / mixed hearing loss can directly wear glasses. The hearing aid body 4 at the end of the temple 3 naturally fits the head through the temple 3, the entrance of the sound guide groove 5 is aligned with the ambient sound collection area at the temple, and the bone conduction vibrator 46 fits the skull behind the ear. Ambient sound enters the sound guide slot 5 and undergoes preprocessing in the low-frequency suppression zone, transition matching, and high-frequency optimization zones. The preprocessed sound then enters the air conduction system's microphone 42 through the first outlet of the sound guide slot 5. Microphone 42 collects the preprocessed ambient sound. DSP 44 further executes a digital noise reduction algorithm to refine high-frequency noise, and the processed signal is output through receiver 45. Simultaneously, the preprocessed sound enters the Helmholtz resonator through the second outlet of the sound guide slot 5, where it resonates and enhances specific frequencies. The sound then transmits vibrations to the bone conduction transducer 43 via the conical coupling pad 61 and waveguide layer 62. The bone conduction transducer 43 receives the vibration signal transmitted by the waveguide layer 62, where it is independently amplified and noise-reduced by the DSP 44, suppressing mechanical noise during the vibration transmission process. The sound is ultimately output through the bone conduction vibrator 46. To adjust the volume, the user simply turns the adjustment knob 49 to adjust both the air and bone conduction volumes simultaneously.

[0044] Example 2:

[0045] This embodiment provides a glasses-type hearing aid, which includes all the structures of the glasses-type hearing aid described in Example 1.

[0046] In this embodiment, the temple 3 and the hearing aid body 4 are detachably connected, preferably with a magnetic quick-release interface or a snap-on structure, to achieve rapid separation or assembly of the temple 3 and the hearing aid body 4. A groove-type interface is provided at the end of the temple 3, with a built-in conductive contact, which precisely docks with the probe-type electrode of the hearing aid body 4 to ensure stable signal and power transmission. After removing the temple 3, the hearing aid body 4 can be fixed behind the ear via a detachable ear hook. When the temple 3 is connected to the body, the sound guide groove 5 and the resonance component work normally, achieving dual noise reduction of "physical preprocessing + electronic fine processing"; after removing the temple 3, the hearing aid body 4 switches to a pure electronic noise reduction mode, and the ambient sound is directly collected through the miniature microphone at the front end of the body, discarding the physical filtering function of the sound guide groove 5.

[0047] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0048] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0050] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example and included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0051] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A glasses-type hearing aid, characterized in that: It comprises a frame (1), a lens (2), two temples (3) and two hearing aid bodies (4); The lens (2) is arranged in the frame (1), and the two temples (3) are respectively arranged on both sides of the frame (1); the free ends of the two temples (3) are respectively connected to the two hearing aid bodies (4); A sound guide groove (5) and a resonance component are provided inside the temple (3) in a direction from the mirror frame (1) to the hearing aid body (4); the entrance of the sound guide groove (5) is close to the mirror frame (1); the first outlet of the sound guide groove (5) is connected to the air conduction sound transmission system of the hearing aid body (4); the second outlet of the sound guide groove (5) is connected to the resonance component, and the resonance component is connected to the bone conduction sound transmission system of the hearing aid body (4).

2. The eyeglass-type hearing aid according to claim 1, wherein A plurality of periodically arranged saw teeth (51) are provided in the sound guide groove (5); A plurality of saw teeth (51) form a low-frequency suppression area, a transition matching area and a high-frequency optimization area distributed in a direction from the frame (1) to the hearing aid body (4) in the sound guide groove (5); The arrangement density of the saw teeth (51) in the low-frequency suppression area is smaller than that in the transition matching area, and the arrangement density of the saw teeth (51) in the transition matching area is smaller than that in the high-frequency optimization area; The sawtooth (51) in the low-frequency suppression zone has a greater tooth depth than that in the transition matching zone, and the sawtooth (51) in the transition matching zone has a greater tooth depth than that in the high-frequency optimization zone.

3. The eyeglass-type hearing aid according to claim 2, wherein: The tooth pitch in the low-frequency suppression zone is 3.5 to 3.7 mm, and the tooth depth is 0.8 to 1.2 mm; The tooth pitch in the transition matching zone is 1.3-1.5 mm, and the tooth depth is 0.4-0.6 mm; The tooth pitch in the high-frequency optimization area is 1 to 1.2 mm, and the tooth depth is 0.15 to 0.25 mm.

4. The eyeglass-type hearing aid according to claim 2, wherein: The included angle between the incident side of the sawtooth (51) and the axis of the sound guide groove (5) is 33° to 37°; the included angle between the exit side of the sawtooth (51) and the axis of the sound guide groove (5) is 68° to 72°.

5. The eyeglass-type hearing aid according to claim 1, wherein The resonant assembly includes a resonator, a tapered coupling pad (61) and a waveguide layer (62); The second outlet of the sound guide groove (5) is connected to the resonator, the resonator is connected to the cone tip of the cone coupling pad (61), and the cone bottom of the cone coupling pad (61) is connected to the bone conduction sound transmission system through the waveguide layer (62).

6. The eyeglass-type hearing aid according to claim 5, wherein: The resonator includes an integrally formed connecting pipe (63) and a water drop-shaped cavity (64); The inlet of the connecting pipe (63) is connected to the second outlet of the sound guide groove (5); and the conical tip of the conical coupling pad (61) is connected to the water drop-shaped cavity (64).

7. The eyeglass-type hearing aid according to claim 6, wherein: The resonator further includes an anti-interference plate (65); The anti-interference plate (65) is flexibly hinged to the top of the water drop-shaped cavity (64), and the distance between the anti-interference plate (65) and the outlet of the connecting pipe (63) is greater than 8 mm.

8. The eyeglass-type hearing aid according to claim 1, wherein The hearing aid body (4) includes a protective shell (41), a microphone (42), a bone conduction sensor (43), a DSP (44), a control circuit, a receiver (45) and a bone conduction vibrator (46); The microphone (42) and the DSP (44) are arranged inside the protective shell (41), and the receiver (45) and the bone conduction vibrator (46) are respectively arranged at two ends of the protective shell (41); the microphone (42) and the bone conduction sensor (43) are respectively connected to the DSP (44), and the DSP (44) is connected to the receiver (45) and the bone conduction vibrator (46) through a control circuit; The protective shell (41) is connected to the free end of the temple (3); the microphone (42), the DSP (44) and the receiver (45) form an air conduction sound transmission system, and the microphone (42) is communicated with the second outlet of the sound guide groove (5); the bone conduction sensor (43), the DSP (44) and the bone conduction vibrator (46) form a bone conduction sound transmission system, and the bone conduction sensor (43) is connected to the resonance component.

9. The eyeglass-type hearing aid according to claim 8, wherein The control circuit includes an air conduction circuit and a bone conduction circuit; The DSP (44) is connected to the receiver (45) via an air conduction circuit; the DSP (44) is connected to the A potentiometer (47) is provided on the air conduction circuit; a sliding rheostat (48) is provided on the bone conduction circuit; The resistance adjustment range of the potentiometer (47) and the sliding rheostat (48) is the same, and the linear change of the resistance corresponding to the adjustment stroke is the same.

10. The eyeglass-type hearing aid according to claim 1, wherein The hearing aid body (4) also includes a volume adjustment component; The volume adjustment component includes an adjustment knob (49), an air conduction adjustment component and a bone conduction adjustment component; The regulating knob (49) is arranged on the protective shell (41), and the regulating knob (49) is connected to the air conduction regulating component and the bone conduction regulating component through transmission; the air conduction regulating component is connected to the potentiometer (47), and the bone conduction regulating component is connected to the sliding rheostat (48); The resistance of the potentiometer (47) and the sliding rheostat (48) is synchronously adjusted through the air conduction adjustment component and the bone conduction adjustment component by rotating the adjustment knob (49), so as to synchronously realize the volume adjustment of the air conduction and bone conduction sound transmission.

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