Hearing aid system

By designing a temperature-sensitive deformation layer and an extended thermally conductive coating layer within the hearing aid body, the problem of pressure and discomfort during long-term wear of hearing aid systems is solved, achieving greater wearing comfort and stability.

CN121442263BActive Publication Date: 2026-05-01HUIZHOU JINHAO MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUIZHOU JINHAO MEDICAL TECH CO LTD
Filing Date
2026-01-05
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing hearing aid systems, due to their elastic earpiece structure, cause continuous pressure on the ear canal during long-term use, resulting in a feeling of pressure and discomfort, and affecting the comfort of use.

Method used

The hearing aid features a thermosensitive deformation layer and an extended thermally conductive covering layer. The thermosensitive deformation layer expands when heated in the ear canal, driving the extended thermally conductive covering layer to adapt to the shape of the ear canal and fit tightly, reducing continuous pressure.

Benefits of technology

By combining a temperature-sensitive deformation layer and an extended thermally conductive coating layer, the contact stress between the earpiece and the inner wall of the ear canal is reduced, improving the long-term wearing comfort and stability of the hearing aid system and reducing the risk of ear canal infection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure provides a kind of hearing aid system.The above-mentioned hearing aid system includes hearing aid body and earplug piece;The hearing aid body is provided with first sound channel, and the hearing aid body is used to be inserted into ear canal;Earplug piece includes support connection layer, temperature-sensitive deformation layer and ductile heat-conducting coating layer, support connection layer is connected with temperature-sensitive deformation layer, ductile heat-conducting coating layer is connected to the outer peripheral wall of temperature-sensitive deformation layer side away from support connection layer, and support connection layer is connected with hearing aid body;Support connection layer is provided with first sound via, temperature-sensitive deformation layer is provided with second sound via, and second sound via is used to communicate with ear canal;Temperature-sensitive deformation layer is used to be deformed and expanded when being heated in ear canal, and ductile heat-conducting coating layer is used to be deformed and expanded when temperature-sensitive deformation layer is deformed and expanded when being heated to adapt to the ear canal, so that ductile heat-conducting coating layer and the inner wall of ear canal are clamped and abutted.The above-mentioned hearing aid system is better in use comfort during long-term wearing and using.
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Description

Hearing aid system Technical Field

[0001] This disclosure relates to the technical field of hearing aids, and in particular to a hearing aid system. Background Technology

[0002] A hearing aid system is an electronic assistive device that uses a microphone to collect ambient sound, amplifies the sound, and then transmits the amplified sound to the user's ear through a speaker. Hearing aid systems are widely used in hearing rehabilitation, post-operative assistance, classroom assistance, speech therapy, daily social interaction, and underwater operations.

[0003] The hearing aid system of the related technology includes a hearing aid body and an earplug. The earplug is connected to the hearing aid body and has an elastic earplug structure. When the user wears the hearing aid system, the user's hand moves the earplug into the ear canal through the hearing aid body, causing the earplug to deform and elastically connect to the inner wall of the ear canal, thereby fixing the hearing aid system in place in the ear canal.

[0004] However, because the earplug is an elastic earplug structure, the user's hand moves the earplug into the ear canal through the hearing aid body, causing the earplug to deform elastically and connect to the inner wall of the ear canal. During long-term use of the hearing aid system, the earplug is more likely to continuously press on the ear canal, resulting in greater contact stress between the earplug and the inner wall of the ear canal. This makes the ear canal more prone to pressure and discomfort under the elastic force of the earplug, resulting in poor comfort during long-term use of the hearing aid system. Summary of the Invention

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a hearing aid system with better comfort during long-term use.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A hearing aid system, comprising:

[0008] The hearing aid body has a first sound emission channel, and the hearing aid body is used to extend into the ear canal;

[0009] An earplug includes a supporting connecting layer, a temperature-sensitive deformation layer, and an extended thermally conductive covering layer. The supporting connecting layer is connected to the temperature-sensitive deformation layer, and the extended thermally conductive covering layer covers and connects to the outer peripheral wall of the temperature-sensitive deformation layer on the side opposite to the supporting connecting layer. The supporting connecting layer is connected to the hearing aid body. The supporting connecting layer has a first sound emission through-hole, and the temperature-sensitive deformation layer has a second sound emission through-hole. The first sound emission through-hole and the second sound emission through-hole are connected to form a second sound emission channel. The first sound emission through-hole communicates with the first sound emission channel, and the second sound emission through-hole communicates with the ear canal.

[0010] The temperature-sensitive deformation layer is used to deform and expand when heated inside the ear canal, and the extended thermally conductive coating layer is used to extend and deform when the temperature-sensitive deformation layer deforms and expands to adapt to and fit the ear canal, so that the extended thermally conductive coating layer is tightly abutted against the inner wall of the ear canal.

[0011] In one embodiment, the earplug further includes an extended antibacterial coating, which covers and connects to the outer peripheral wall of the extended thermally conductive coating; when the hearing aid body is inserted into the ear canal, the extended antibacterial coating is used to extend and deform when the extended thermally conductive coating is extended and deformed to adapt to fit the ear canal, so that the extended antibacterial coating is used to clamp and abut against the inner wall of the ear canal.

[0012] In one embodiment, the extended antibacterial coating is a nanocomposite hydrogel coating, a metal-ceramic multilayer coating, or a zwitterionic polymer coating.

[0013] In one embodiment, the hearing aid body includes a first housing and a second housing. The first housing has a first mounting groove, and the second housing has a second mounting groove. The first housing covers the second mounting groove and is connected to the second housing. The first mounting groove and the second mounting groove are connected to form a receiving cavity. The first sound transmission channel is opened in the first housing and is connected to the first mounting groove. The supporting connecting layer is connected to the first housing. Both the first housing and the second housing are used to extend into the ear canal.

[0014] In one embodiment, the bottom of the first housing is provided with a mounting part, the mounting part is arranged around the first mounting groove, the inner wall of the second mounting groove is provided with a connecting ring groove, the mounting part is located in the connecting ring groove and is sealed to the second housing, so that the first housing covers the second mounting groove and is sealed to the second housing.

[0015] In one embodiment, the hearing aid body further includes a microphone assembly, an amplifier assembly, and a speaker assembly. The amplifier assembly is connected to both the microphone assembly and the speaker assembly, and is electrically connected to both the microphone assembly and the speaker assembly. The amplifier assembly is located between the microphone assembly and the speaker assembly. The microphone assembly is located in the second mounting slot and connected to the second housing. The amplifier assembly is located in the second mounting slot and connected to the second housing. The speaker assembly is located in the receiving cavity and connected to the first housing. The speaker assembly is correspondingly arranged with the first sound transmission channel.

[0016] In one embodiment, the hearing aid body further includes a battery assembly and a charging assembly. The battery assembly is mounted on the charging assembly and is electrically connected to the charging assembly. The battery assembly is located in the second mounting slot, and the charging assembly is located in the second mounting slot and connected to the second housing. The battery assembly is located between the microphone assembly and the charging assembly. The microphone assembly, the amplifier assembly, and the speaker assembly are all electrically connected to the battery assembly. The charging assembly is used to electrically connect to an external power source.

[0017] In one embodiment, the supporting connection layer is a methyl vinyl silicone rubber layer, a high-hardness vapor-phase silicone rubber layer, or a phenyl silicone rubber layer.

[0018] In one embodiment, the thermosensitive deformation layer is a thermosensitive hydrogel deformation layer or a polycaprolactone deformation layer.

[0019] In one embodiment, the extended thermally conductive coating is a TPU coating or a silicone rubber coating.

[0020] Compared with the prior art, this disclosure has at least the following advantages:

[0021] 1. Since the main body of the hearing aid is inserted into the ear canal so that the earpiece is located inside the ear canal, and the inside of the ear canal has a temperature, that is, the ear canal can generate heat. The heat acts on the temperature-sensitive deformation layer through the extended thermally conductive covering layer, so that the temperature-sensitive deformation layer absorbs heat and deforms and expands. That is, when the temperature-sensitive deformation layer is used inside the ear canal, it deforms and expands due to heat. The extended thermally conductive covering layer is used to extend and deform to adapt to and fit the ear canal when the temperature-sensitive deformation layer deforms and expands due to heat. The extended thermally conductive covering layer is used to lock and abut against the inner wall of the ear canal. Under the action of the temperature-sensitive deformation layer, the extended thermally conductive covering layer contacts and locks against the inner wall of the ear canal, which completes the wearing process of the hearing aid system.

[0022] 2. Because the extended thermally conductive coating layer is used to extend and deform when the temperature-sensitive deformation layer is heated to adapt to and fit the ear canal, the extended thermally conductive coating layer is used to clamp and abut against the inner wall of the ear canal. Thus, under the action of the temperature-sensitive deformation layer, the extended thermally conductive coating layer automatically adapts to the shape of the ear canal, and under the action of the temperature-sensitive deformation layer, the extended thermally conductive coating layer contacts and clamps against the inner wall of the ear canal. This avoids the problem in the prior art where the earplug component undergoes elastic deformation to elastically connect to the inner wall of the ear canal. Instead, the temperature-sensitive deformation layer of the earplug component undergoes thermal deformation to drive the extended thermally conductive coating layer to extend and deform to clamp and abut against the inner wall of the ear canal, so that the extended thermally conductive coating layer and the inner wall of the ear canal are in close contact and fit together, thereby completing the fixation of the earplug component in the ear canal.

[0023] 3. Due to the excellent extensibility of the extended thermally conductive coating, it is difficult for the extended thermally conductive coating to continuously compress the ear canal. That is, the earpiece is less likely to continuously compress the ear canal under the action of the extended thermally conductive coating, resulting in lower contact stress between the extended thermally conductive coating and the inner wall of the ear canal. Therefore, during long-term use of the hearing aid system, the earpiece is in close contact with the inner wall of the ear canal, making it less likely for the earpiece to continuously compress the ear canal under the action of the extended thermally conductive coating. This reduces the contact stress between the earpiece and the inner wall of the ear canal, making it less likely for the ear canal to experience pressure or discomfort. As a result, the hearing aid system offers better comfort during long-term use. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 is a schematic diagram of the structure of a hearing aid system according to an embodiment;

[0026] Figure 2 is a structural schematic diagram of the hearing aid system shown in Figure 1 from another perspective;

[0027] Figure 3 is a cross-sectional view of the AA line in the hearing aid system shown in Figure 2;

[0028] Figure 4 is a three-dimensional exploded view of the hearing aid system shown in Figure 1.

[0029] Figure 5 is a partial structural schematic diagram of the extended antibacterial coating in an embodiment of the hearing aid system shown in Figure 3;

[0030] Figure 6 is a partial structural schematic diagram of the extended antibacterial coating of another embodiment of the hearing aid system shown in Figure 3. Detailed Implementation

[0031] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] As shown in Figures 1 to 6, a hearing aid system 10 of one embodiment includes a hearing aid body 100 and an earplug 200. The hearing aid body 100 has a first sound emission channel 112 and is used to extend into the ear canal. The earplug 200 includes a support connection layer 210, a temperature-sensitive deformation layer 220, and an extended thermally conductive covering layer 230. The support connection layer 210 is connected to the temperature-sensitive deformation layer 220, and the extended thermally conductive covering layer 230 covers and connects to the outer peripheral wall of the temperature-sensitive deformation layer 220 on the side opposite to the support connection layer 210. The support connection layer 210 is connected to the hearing aid body 100. Layer 210 has a first sound emission through hole 211, and temperature-sensitive deformation layer 220 has a second sound emission through hole 221. The first sound emission through hole 211 and the second sound emission through hole 221 are connected to form a second sound emission channel 2111. The first sound emission through hole 211 is connected to the first sound emission channel 112, and the second sound emission through hole 221 is used to communicate with the ear canal. The temperature-sensitive deformation layer 220 is used to deform and expand when heated in the ear canal. The extended thermally conductive coating layer 230 is used to extend and deform when the temperature-sensitive deformation layer 220 is heated to adapt to and fit the ear canal, so that the extended thermally conductive coating layer 230 is tightly abutted against the inner wall of the ear canal.

[0035] In this embodiment, the hearing aid body 100 is used to collect ambient sound and amplify the sound. Then, the amplified sound is transmitted to the first sound transmission channel 112. The first sound transmission channel 112 is connected to the first sound transmission through-hole 211. The first sound transmission through-hole 211 is connected to the second sound transmission through-hole 221. The second sound transmission through-hole 221 is used to communicate with the ear canal so that the amplified sound is transmitted to the user's ear canal through the first sound transmission channel 112 and the second sound transmission channel 2111 to complete the sound transmission processing of the hearing aid system 10.

[0036] The hearing aid system 10 described above, since the hearing aid body 100 is used to extend into the ear canal so that the earplug 200 is located in the ear canal, and the inside of the ear canal has a temperature, that is, the inside of the ear canal can generate heat, the heat acts on the temperature-sensitive deformation layer 220 through the extended thermal conductive covering layer 230, so that the temperature-sensitive deformation layer 220 absorbs heat and deforms and expands, that is, the temperature-sensitive deformation layer 220 is heated and deformed and expanded when it is in the ear canal, and the extended thermal conductive covering layer 230 is used to extend and deform when the temperature-sensitive deformation layer 220 is heated and deformed to adapt to fit the ear canal, so that the extended thermal conductive covering layer 230 is used to clamp and abut against the inner wall of the ear canal, so that the extended thermal conductive covering layer 230 contacts and clamps against the inner wall of the ear canal under the action of the temperature-sensitive deformation layer 220, thus completing the wearing process of the hearing aid system 10;

[0037] Because the extended thermally conductive coating layer 230 is used to extend and deform when the temperature-sensitive deformation layer 220 is heated and expands to adapt to and fit the ear canal, the extended thermally conductive coating layer 230 is used to clamp and abut against the inner wall of the ear canal. Thus, the extended thermally conductive coating layer 230 automatically adapts to the shape of the ear canal under the action of the temperature-sensitive deformation layer 220, and the extended thermally conductive coating layer 230 contacts and clamps against the inner wall of the ear canal under the action of the temperature-sensitive deformation layer 220. This avoids the problem in the prior art where the earplug 200 undergoes elastic deformation to elastically connect to the inner wall of the ear canal. Instead, the temperature-sensitive deformation layer 220 of the earplug 200 undergoes thermal deformation to drive the extended thermally conductive coating layer 230 to extend and deform to clamp and abut against the inner wall of the ear canal, so that the extended thermally conductive coating layer 230 is in close contact and fits against the inner wall of the ear canal, thereby completing the fixation of the earplug 200 in the ear canal.

[0038] Because the extended thermally conductive coating layer 230 has good extensibility, it is difficult for the extended thermally conductive coating layer 230 to continuously compress the ear canal. That is, the earplug 200 is less likely to continuously compress the ear canal under the action of the extended thermally conductive coating layer 230, so the contact stress between the extended thermally conductive coating layer 230 and the inner wall of the ear canal is small. Therefore, during the long-term use of the hearing aid system 10, the earplug 200 is in close contact with the inner wall of the ear canal, so the earplug 200 is less likely to continuously compress the ear canal under the action of the extended thermally conductive coating layer 230, so the contact stress between the earplug 200 and the inner wall of the ear canal is small. This makes it less likely for the ear canal to feel pressure or discomfort under the action of the extended thermally conductive coating layer 230, and thus the hearing aid system 10 has better comfort during long-term use.

[0039] As shown in Figures 1 to 3, in one embodiment, the earplug 200 further includes an extended antibacterial coating 240, which covers and is connected to the outer peripheral wall of the extended thermally conductive covering layer 230. When the hearing aid body 100 is inserted into the ear canal, the extended antibacterial coating 240 is used to extend and deform as the extended thermally conductive covering layer 230 extends and deforms to adapt to and conform to the ear canal, so that the extended antibacterial coating 240 is used to clamp and abut against the inner wall of the ear canal. In this embodiment, the extended antibacterial coating 240 covers and is connected to the outer peripheral wall of the extended thermally conductive covering layer 230, and the extended antibacterial coating 240 is used to clamp and abut against the inner wall of the ear canal. The extended antibacterial coating 240 can effectively inhibit the growth and reproduction of bacteria, thereby effectively reducing the number of bacteria in the ear canal, thus reducing the risk of ear canal infection, and making the hearing aid system 10 more comfortable to use during long-term use.

[0040] Furthermore, the extended antibacterial coating 240 has good extensibility and deformation adaptability, so that the extended antibacterial coating 240 can be adaptively adjusted according to the shape and size of the ear canal, so that the earplug 200 can better fit the ear canal, thereby effectively improving the wearing comfort of the hearing aid system 10.

[0041] Furthermore, the extended antibacterial coating 240 is used to extend and deform when the extended thermally conductive coating layer 230 extends and deforms to adapt to and fit the ear canal, so that the extended antibacterial coating 240 is used to clamp and abut against the inner wall of the ear canal, so that the extended antibacterial coating 240 contacts and clamps against the inner wall of the ear canal, thereby making the earplug 200 more stable during use, making it more difficult for the earplug 200 to fall out of the ear canal, and thus making the positional stability of the earplug 200 better.

[0042] Furthermore, the extended antibacterial coating 240 is attached to the outer peripheral wall of the extended thermally conductive coating layer 230, so that the extended antibacterial coating 240 and the outer peripheral wall of the extended thermally conductive coating layer 230 are tightly bonded together. This allows heat in the ear canal to be conducted to the temperature-sensitive deformation layer 220 through the extended antibacterial coating 240 and the extended thermally conductive coating layer 230, which is beneficial for heat conduction. This allows the temperature-sensitive deformation layer 220 to deform and expand when heated, resulting in better thermal conductivity of the extended antibacterial coating 240.

[0043] As shown in Figures 1 to 6, in one embodiment, the extended antibacterial coating 240 is a nanocomposite hydrogel coating, a metal-ceramic multilayer coating, or a zwitterionic polymer coating. In this embodiment, when the extended antibacterial coating 240 is a nanocomposite hydrogel coating, specifically, the extended antibacterial coating 240 is a zwitterionic hydrogel coating, so that the extended antibacterial coating 240 has good extensibility, allowing it to extend and deform when the extended thermally conductive coating layer 230 extends and deforms to adapt to the ear canal, thereby effectively improving the wearing comfort of the hearing aid system 10. At the same time, the quaternary ammonium cations in the extended antibacterial coating 240 can destroy bacterial cell membranes, and the zwitterionic groups in the extended antibacterial coating 240 can form a hydration layer to inhibit biofilm adhesion, so that the extended antibacterial coating 240 has an antibacterial rate of up to 99.99% against bacteria such as Escherichia coli and Staphylococcus aureus, effectively inhibiting bacterial growth and reproduction, thereby effectively reducing the number of bacteria in the ear canal, thus reducing the risk of ear canal infection, and making the hearing aid system 10 more comfortable to use during long-term use.

[0044] Furthermore, when the extended antibacterial coating 240 is a metal-ceramic multilayer coating, specifically, the extended antibacterial coating 240 is a ZnP (Zinc-Phosphate) coating-ZCT (Zero Carbon Transition) film layer, so that the extended antibacterial coating 240 has good extensibility, allowing it to extend and deform when the extended thermally conductive coating layer 230 extends and deforms to adapt to the ear canal, thereby effectively improving the wearing comfort of the hearing aid system 10. At the same time, the zinc ions in the extended antibacterial coating 240 can be slowly released to disrupt bacterial metabolism, so that the extended antibacterial coating 240 has an antibacterial rate of up to 99.99% against bacteria such as Escherichia coli and Staphylococcus aureus, which can effectively inhibit the growth and reproduction of bacteria, thereby effectively reducing the number of bacteria in the ear canal and reducing the risk of ear canal infection, making the hearing aid system 10 more comfortable to use during long-term use.

[0045] Furthermore, as shown in Figure 5, in one embodiment, the extended antibacterial coating 240 includes a ZnP coating base layer 241 and a ZCT film layer 242 formed on the ZnP coating base layer 241. The ZnP coating base layer 241 covers and connects to the outer peripheral wall of the extended thermally conductive coating layer 230. When the hearing aid body 100 is inserted into the ear canal, both the ZnP coating base layer 241 and the ZCT film layer 242 are used to extend and deform during the extension and deformation of the extended thermally conductive coating layer 230 to adapt to and conform to the ear canal, so that the ZCT film layer 242 is used to tightly abut against the inner wall of the ear canal. In this embodiment, the ZnP coating base layer 241 is used to slowly release zinc ions into the ZCT film layer 242 to disrupt the metabolism of bacteria in the ear canal, so that the extended antibacterial coating 240 has an antibacterial rate of up to 99.99% against bacteria such as Escherichia coli and Staphylococcus aureus, resulting in good antibacterial performance of the extended antibacterial coating 240.

[0046] Furthermore, when the extended antibacterial coating 240 is a zwitterionic polymer coating, specifically, the extended antibacterial coating 240 is a chitosan-nanocellulose-BVAL (i.e., Bacillus belyss lipopeptide) composite coating, so that the extended antibacterial coating 240 has good extensibility, so that the extended antibacterial coating 240 can be used to extend and deform when the extended thermally conductive coating layer 230 is extended and deformed to adapt to the ear canal, thereby effectively improving the wearing comfort of the hearing aid system 10; at the same time, the Bacillus belyss lipopeptide in the extended antibacterial coating 240 can destroy the bacterial cell membrane, so that the extended antibacterial coating 240 has an antibacterial rate of up to 99.99% against bacteria such as Escherichia coli and Staphylococcus aureus, so that the extended antibacterial coating 240 can effectively inhibit the growth and reproduction of bacteria, thereby effectively reducing the number of bacteria in the ear canal, and thus reducing the risk of ear canal infection, making the hearing aid system 10 more comfortable to use during long-term use.

[0047] Furthermore, as shown in Figure 6, in one embodiment, the extended antibacterial coating 240 includes a chitosan base layer 243, a nanocellulose layer 244, and a BVAL coating 245 stacked together. The chitosan base layer 243 covers and connects to the outer peripheral wall of the extended thermally conductive coating layer 230. When the hearing aid body 100 is inserted into the ear canal, the chitosan base layer 243, the nanocellulose layer 244, and the BVAL coating 245 are all used to extend and deform during the extension and deformation of the extended thermally conductive coating layer 230 to adapt to and conform to the ear canal, so that the BVAL coating 245 is used to tightly abut against the inner wall of the ear canal. In this embodiment, the nanocellulose layer 244 is used to enhance the flexibility of the extended antibacterial coating 240, which is conducive to the close contact and adhesion between the extended antibacterial coating 240 and the inner wall of the ear canal, so that the hearing aid system 10 has better comfort during long-term use.

[0048] As shown in Figures 1 to 4, in one embodiment, the hearing aid body 100 includes a first housing 110 and a second housing 120. The first housing 110 has a first mounting groove 111, and the second housing 120 has a second mounting groove 121. The first housing 110 covers the second mounting groove 121 and is connected to the second housing 120. The first mounting groove 111 and the second mounting groove 121 are connected to form a receiving cavity 1111. A first sound transmission channel 112 is opened in the first housing 110 and is connected to the first mounting groove 111. A support connecting layer 210 is connected to the first housing 110. Both the first housing 110 and the second housing 120 are used to extend into the ear canal. In this embodiment, the first housing 110 covers the second mounting groove 121 and is connected to the second housing 120. The first mounting groove 111 and the second mounting groove 121 are connected to form a receiving cavity 1111. That is, the first housing 110 and the second housing 120 are connected by covering to form a receiving cavity 1111, so that the receiving cavity 1111 can install core components such as the microphone assembly 130, the amplifier assembly 140 and the speaker assembly 150, so that the space inside the receiving cavity 1111 is used efficiently, thereby effectively improving the space utilization rate of the hearing aid body 100 and making the hearing aid body 100 have a compact structure.

[0049] As shown in Figures 1 to 3, in one embodiment, a mounting portion 113 is provided at the bottom of the first housing 110. The mounting portion 113 surrounds the first mounting groove 111. A connecting ring groove 1211 is formed on the inner wall of the second mounting groove 121. The mounting portion 113 is located in the connecting ring groove 1211 and is sealed to the second housing 120, so that the first housing 110 covers the second mounting groove 121 and is sealed to the second housing 120. In this embodiment, the first housing 110 covers the second mounting groove 121 and is sealed to the second housing 120, which makes the sealing performance of the receiving cavity 1111 better, so that external noise is less likely to enter the receiving cavity 1111, thereby effectively improving the sound clarity of the hearing aid system 10.

[0050] As shown in Figures 1 to 3, in one embodiment, the hearing aid body 100 further includes a microphone assembly 130, an amplifier assembly 140, and a speaker assembly 150. The amplifier assembly 140 is connected to both the microphone assembly 130 and the speaker assembly 150, and is electrically connected to both. The amplifier assembly 140 is located between the microphone assembly 130 and the speaker assembly 150. The microphone assembly 130 is located in the second mounting groove 121 and connected to the second housing 120. The amplifier assembly 140 is located in the second mounting groove 121 and connected to the second housing 120. The speaker assembly 150 is located in the receiving cavity 1111 and connected to the first housing 110. The speaker assembly 150 is correspondingly arranged with the first sound transmission channel 112. In this embodiment, the hearing aid body 100 uses a microphone assembly 130 to collect ambient sound and convert the sound signal into an electrical signal. An amplifier assembly 140 is electrically connected to both the microphone assembly 130 and the speaker assembly 150, so that the microphone assembly 130 transmits the electrical signal to the amplifier assembly 140, which amplifies the signal. Specifically, the hearing aid body 100 amplifies the electrical signal using the amplifier assembly 140, which then transmits the amplified signal to the speaker assembly 150. The speaker assembly 150 amplifies the amplified electrical signal. The signal is converted into an amplified sound signal. Then, the hearing aid body 100 transmits the amplified sound signal to the first sound transmission channel 112 through the speaker assembly 150. The first sound transmission channel 112 is connected to the first sound transmission through-hole 211. The first sound transmission through-hole 211 is connected to the second sound transmission through-hole 221. The second sound transmission through-hole 221 is used to communicate with the ear canal so that the amplified sound is transmitted to the user's ear canal through the first sound transmission channel 112 and the second sound transmission channel 2111 to complete the sound transmission processing of the hearing aid system 10, thereby effectively helping the user improve their hearing and making the hearing aid system 10 more convenient to use.

[0051] As shown in Figures 1 to 3, in one embodiment, the hearing aid body 100 further includes a battery assembly 160 and a charging assembly 170. The battery assembly 160 is mounted on the charging assembly 170 and is electrically connected to the charging assembly 170. The battery assembly 160 is located in the second mounting groove 121, and the charging assembly 170 is located in the second mounting groove 121 and connected to the second housing 120. The battery assembly 160 is located between the microphone assembly 130 and the charging assembly 170. The microphone assembly 130, the amplifier assembly 140, and the speaker assembly 150 are all electrically connected to the battery assembly 160. The charging assembly 170 is used to be electrically connected to an external power source. In this embodiment, the battery assembly 160 is a zinc-air button battery. The battery assembly 160 provides power to the microphone assembly 130, amplifier assembly 140, and speaker assembly 150. The charging assembly 170 is used to replenish the power of the battery assembly 160, making the battery assembly 160 easy to use. At the same time, the microphone assembly 130, amplifier assembly 140, battery assembly 160, and charging assembly 170 are all centrally installed in the second mounting slot 121, so that the components in the hearing aid body 100 are centralized, making the hearing aid body 100 structurally compact. This results in a smaller space occupied by the hearing aid body 100, and a smaller overall size of the hearing aid system 10, thereby meeting the miniaturization requirements of the hearing aid system 10 and achieving a high degree of integration of the hearing aid system 10.

[0052] In one embodiment, the supporting bonding layer 210 is a methyl vinyl silicone rubber layer, a high-hardness fumed silica layer, or a phenyl silicone rubber layer. In this embodiment, when the supporting bonding layer 210 is a methyl vinyl silicone rubber layer, the crosslinking density of the supporting bonding layer 210 is relatively high, so that the supporting bonding layer 210 provides better support for the temperature-sensitive deformation layer 220.

[0053] Furthermore, when the support connection layer 210 is a high-hardness vapor-phase silicone layer, the structural stability of the support connection layer 210 is better, so that the support connection layer 210 can provide better support for the temperature-sensitive deformation layer 220.

[0054] Furthermore, when the support connection layer 210 is a phenyl silicone rubber layer, the structural stability of the support connection layer 210 is better, so that the support connection layer 210 can provide better support for the temperature-sensitive deformation layer 220.

[0055] In one embodiment, the thermosensitive deformable layer 220 is a thermosensitive hydrogel deformable layer or a polycaprolactone deformable layer. In this embodiment, when the thermosensitive deformable layer 220 is a thermosensitive hydrogel deformable layer, the thermosensitive deformable layer 220 undergoes a sol-gel phase transition at the ear canal temperature, allowing the thermosensitive deformable layer 220 to absorb heat and deform and expand. That is, the thermosensitive deformable layer 220 deforms and expands under heat, causing the thermosensitive deformable layer 220 to drive the extended thermally conductive coating layer 230 to fill irregular gaps in the ear canal, and allowing the extended thermally conductive coating layer 230 to extend when the thermosensitive deformable layer 220 deforms and expands under heat. The deformation adapts to fit the ear canal, allowing the extended thermally conductive covering layer 230 to be tightly pressed against the inner wall of the ear canal. This allows the extended thermally conductive covering layer 230 to contact and be firmly pressed against the inner wall of the ear canal under the action of the temperature-sensitive deformation layer 220. This results in a higher uniformity of the contact pressure of the earplug 200 on the ear canal, effectively reducing the pressure and discomfort caused by the earplug 200 during long-term use, and making the hearing aid system 10 more comfortable to use during long-term use.

[0056] Furthermore, when the thermosensitive deformation layer 220 is a polycaprolactone deformation layer, the thermosensitive deformation layer 220 has a shape memory effect. At the ear canal temperature, the thermosensitive deformation layer 220 can be pre-shaped in vitro and then softened again in the ear canal to fit tightly into the ear canal, so that the deformation recovery rate of the thermosensitive deformation layer 220 is >90%. This allows the thermosensitive deformation layer 220 to be used to adapt to complex ear canal shapes, thereby making the thermosensitive deformation layer 220 more convenient to use, and thus making the hearing aid system 10 more convenient to use.

[0057] In one embodiment, the extended thermally conductive coating layer 230 is a TPU (thermoplastic polyurethane) coating layer or a silicone rubber coating. In this embodiment, when the extended thermally conductive coating layer 230 is a TPU coating layer, it is designed to have good extensibility and thermal conductivity, so that heat can easily pass through the extended thermally conductive coating layer 230 to act on the temperature-sensitive deformation layer 220. The extended thermally conductive coating layer 230 is used to extend and deform when the temperature-sensitive deformation layer 220 is heated and expands to adapt to and fit the ear canal, so that the extended thermally conductive coating layer 230 dynamically covers the temperature-sensitive deformation layer 220, making it difficult for the extended thermally conductive coating layer 230 to continuously press against the ear canal. That is, the earplug 200 is less likely to continuously press against the ear canal under the action of the extended thermally conductive coating layer 230, so that the contact stress between the extended thermally conductive coating layer 230 and the inner wall of the ear canal is smaller.

[0058] Furthermore, when the extended thermally conductive coating layer 230 is a silicone rubber coating, it is designed to have good extensibility and thermal conductivity, so that heat can more easily pass through the extended thermally conductive coating layer 230 to act on the temperature-sensitive deformation layer 220. The extended thermally conductive coating layer 230 is used to extend and deform when the temperature-sensitive deformation layer 220 is heated and deformed to fit the ear canal, so that the adhesion between the extended thermally conductive coating layer 230 and the inner wall of the ear canal is better, making it more difficult for the extended thermally conductive coating layer 230 to continuously press on the ear canal. That is, the earplug 200 is less likely to continuously press on the ear canal under the action of the extended thermally conductive coating layer 230, so that the contact stress between the extended thermally conductive coating layer 230 and the inner wall of the ear canal is smaller.

[0059] Furthermore, as shown in Figures 1 to 4, in one embodiment, a fishing line 122 is provided at the end of the second housing 120 opposite to the first housing 110. The fishing line 122 is used to provide a point of force so that the user can insert or pull the hearing aid body 100 into the ear canal, making it easier to wear the hearing aid system 10 in the ear canal.

[0060] Furthermore, in one embodiment, the end of the fishing line 122 facing away from the second housing 120 is provided with a gripping part 1221, which makes it easier for the user to grip and facilitates the user to wear the hearing aid system 10 in the ear canal, thus making the hearing aid system 10 more convenient to use.

[0061] Furthermore, in one embodiment, the outer peripheral wall of the gripping part 1221 is covered with a silicone anti-slip layer 1221a. The silicone anti-slip layer 1221a is used to increase the friction between the gripping part 1221 and the user's hand, making it more difficult for the user's hand to separate from the gripping part 1221 when the hearing aid system 10 is worn in the ear canal, so as to improve the ease of use of the fishing line 122.

[0062] Furthermore, in one embodiment, the support connection layer 210 is fused with the temperature-sensitive deformation layer 220 to make the connection strength between the support connection layer 210 and the temperature-sensitive deformation layer 220 higher, thereby making the connection reliability between the support connection layer 210 and the temperature-sensitive deformation layer 220 better.

[0063] Furthermore, as shown in Figure 3, in one embodiment, the outer peripheral wall of the temperature-sensitive deformation layer 220 opposite to the support connection layer 210 is provided with a plurality of first connection protrusions (not shown in the figure), the plurality of first connection protrusions are spaced apart, and the extended thermally conductive coating layer 230 covers each of the first connection protrusions connected to the temperature-sensitive deformation layer 220. In this embodiment, the extended thermally conductive coating layer 230 covers each of the first connecting bumps connected to the temperature-sensitive deformation layer 220, so that multiple first connecting bumps are used to jointly embed into the extended thermally conductive coating layer 230 to jointly form a physical anchoring structure. This improves the peel strength between the temperature-sensitive deformation layer 220 and the extended thermally conductive coating layer 230, thereby avoiding the problem that the temperature-sensitive deformation layer 220 is easily separated from the extended thermally conductive coating layer 230 when it expands or contracts due to temperature changes. This makes it more difficult for the temperature-sensitive deformation layer 220 to separate from the extended thermally conductive coating layer 230 under the combined action of multiple first connecting bumps, resulting in better connection reliability between the temperature-sensitive deformation layer 220 and the extended thermally conductive coating layer 230.

[0064] Further, as shown in FIG3, in one embodiment, the outer peripheral wall of the extended thermally conductive coating layer 230 is provided with a plurality of second connecting protrusions (not shown), the plurality of second connecting protrusions are spaced apart, and the extended antibacterial coating 240 covers and connects to each second connecting protrusion on the extended thermally conductive coating layer 230. In this embodiment, the extended antibacterial coating 240 covers each of the second connecting protrusions connected to the extended thermally conductive coating layer 230, so that multiple second connecting protrusions are used to jointly embed the extended antibacterial coating 240 to jointly form a physical anchoring structure. This improves the peel strength between the extended thermally conductive coating layer 230 and the extended antibacterial coating 240, thereby avoiding the problem that the extended thermally conductive coating layer 230 is easy to separate from the extended antibacterial coating 240 when it is stretched and deformed. This makes it more difficult for the extended antibacterial coating 240 to separate from the extended thermally conductive coating layer 230 under the combined action of multiple second connecting protrusions, resulting in better connection reliability between the extended antibacterial coating 240 and the extended thermally conductive coating layer 230.

[0065] Further, as shown in Figures 3 and 4, in one embodiment, a support portion 114 is provided at one end of the first housing 110 away from the second housing 120. The support portion 114 has a clearance through hole 1141, which communicates with the first sound transmission channel 112. The support connecting layer 210 also has a mounting support groove 212, which communicates with the first sound transmission through hole 211. The support portion 114 passes through the mounting support groove 212 and is connected to the support connecting layer 210. The support portion 114 is used to support the abutment against the support connecting layer 210 when the extended heat-conducting coating layer 230 is tightly abutted against the inner wall of the ear canal. In this embodiment, the support portion 114 is used to support the support connecting layer 210 when the extended thermally conductive coating layer 230 is tightly abutted against the inner wall of the ear canal, so that the support connecting layer 210 is used to support the abutment against the temperature-sensitive deformation layer 220. When the extended thermally conductive coating layer 230 is used to extend and deform to adapt to the ear canal when the temperature-sensitive deformation layer 220 is heated and deformed to fit the ear canal, the temperature-sensitive deformation layer 220 may shrink inward, making it easier for the second sound transmission channel 2111 to close. At this time, the support portion 114 supports the abutment against the support connecting layer 210, so that the support connecting layer 210 supports the abutment against the temperature-sensitive deformation layer 220, thereby effectively avoiding the problem of the temperature-sensitive deformation layer 220 shrinking inward, making it more difficult for the second sound transmission channel 2111 to close under the combined action of the support portion 114 and the support connecting layer 210, resulting in better sound transmission effect of the hearing aid system 10, and thus making the hearing aid system 10 more convenient to use.

[0066] Compared with the prior art, this disclosure has at least the following advantages:

[0067] 1. Since the hearing aid body 100 is inserted into the ear canal so that the earplug 200 is located inside the ear canal, the inside of the ear canal has a temperature, that is, the inside of the ear canal can generate heat. The heat acts on the temperature-sensitive deformation layer 220 through the extended thermal conductive covering layer 230, so that the temperature-sensitive deformation layer 220 absorbs heat and deforms and expands. That is, the temperature-sensitive deformation layer 220 is heated and deformed and expanded when it is inside the ear canal. The extended thermal conductive covering layer 230 is extended and deformed when the temperature-sensitive deformation layer 220 is heated and expanded to adapt to fit the ear canal. The extended thermal conductive covering layer 230 is used to clamp and abut against the inner wall of the ear canal. Under the action of the temperature-sensitive deformation layer 220, the extended thermal conductive covering layer 230 contacts and clamps against the inner wall of the ear canal to complete the wearing process of the hearing aid system 10.

[0068] 2. Because the extended thermally conductive coating layer 230 is used to extend and deform when the temperature-sensitive deformation layer 220 is heated and expands to adapt to and fit the ear canal, the extended thermally conductive coating layer 230 is used to clamp and abut against the inner wall of the ear canal. Thus, the extended thermally conductive coating layer 230 automatically adapts to the shape of the ear canal under the action of the temperature-sensitive deformation layer 220, and the extended thermally conductive coating layer 230 contacts and clamps against the inner wall of the ear canal under the action of the temperature-sensitive deformation layer 220. This avoids the problem in the prior art where the earplug 200 undergoes elastic deformation to elastically connect to the inner wall of the ear canal. Instead, the temperature-sensitive deformation layer 220 of the earplug 200 undergoes thermal deformation to drive the extended thermally conductive coating layer 230 to extend and deform to clamp and abut against the inner wall of the ear canal, so that the extended thermally conductive coating layer 230 is in close contact and fits against the inner wall of the ear canal, thereby completing the fixation of the earplug 200 in the ear canal.

[0069] 3. Due to the excellent extensibility of the extended thermally conductive coating layer 230, it is difficult for the extended thermally conductive coating layer 230 to continuously compress the ear canal. That is, the earplug 200 is less likely to continuously compress the ear canal under the action of the extended thermally conductive coating layer 230, so the contact stress between the extended thermally conductive coating layer 230 and the inner wall of the ear canal is small. Therefore, during the long-term use of the hearing aid system 10, the earplug 200 is in close contact with the inner wall of the ear canal, so the earplug 200 is less likely to continuously compress the ear canal under the action of the extended thermally conductive coating layer 230, so the contact stress between the earplug 200 and the inner wall of the ear canal is small. This makes it less likely for the ear canal to feel pressure or discomfort under the action of the extended thermally conductive coating layer 230, resulting in better comfort of the hearing aid system 10 during long-term use.

[0070] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A hearing aid system, characterized in that, include: The hearing aid body has a first sound emission channel, and the hearing aid body is used to extend into the ear canal; An earplug component includes a support connection layer, a temperature-sensitive deformation layer, and an extended thermally conductive covering layer. The support connection layer is connected to the temperature-sensitive deformation layer, and the extended thermally conductive covering layer covers and is connected to the outer peripheral wall of the temperature-sensitive deformation layer on the side opposite to the support connection layer. The support connection layer is connected to the hearing aid body. The supporting connecting layer has a first sound emission through-hole, and the temperature-sensitive deformation layer has a second sound emission through-hole. The first sound emission through-hole and the second sound emission through-hole are connected to form a second sound emission channel. The first sound emission through-hole is connected to the first sound emission channel, and the second sound emission through-hole is used to communicate with the ear canal. The temperature-sensitive deformation layer is used to deform and expand when heated in the ear canal. The extended thermally conductive coating layer is used to extend and deform when the temperature-sensitive deformation layer is heated to adapt to and fit the ear canal, so that the extended thermally conductive coating layer is tightly abutted against the inner wall of the ear canal. The hearing aid body includes a first shell and a second shell. The first shell has a first mounting groove, and the second shell has a second mounting groove. The first shell covers the second mounting groove and is connected to the second shell. The first mounting groove and the second mounting groove are connected to form a receiving cavity. The first sound emission channel is opened in the first... A housing, wherein the first sound transmission channel is connected to the first mounting groove; the supporting connecting layer is connected to the first housing; both the first housing and the second housing are used to extend into the ear canal; the outer peripheral wall of the temperature-sensitive deformation layer opposite to the supporting connecting layer is provided with a plurality of first connecting protrusions, the plurality of first connecting protrusions being spaced apart, and the extended thermally conductive coating layer covering and connecting each of the first connecting protrusions on the temperature-sensitive deformation layer; a supporting part is provided at one end of the first housing opposite to the second housing, the supporting part having a clearance through hole, the clearance through hole being connected to the first sound transmission channel, the supporting connecting layer also having a mounting support groove, the mounting support groove being connected to the first sound transmission through hole, the supporting part passing through the mounting support groove and being connected to the supporting connecting layer, the supporting part being used to support the abutment against the supporting connecting layer when the extended thermally conductive coating layer is tightly abutted against the inner wall of the ear canal.

2. The hearing aid system according to claim 1, characterized in that, The earplug also includes an extended antibacterial coating, which covers and connects to the outer peripheral wall of the extended thermally conductive coating. When the hearing aid body is inserted into the ear canal, the extended antibacterial coating is used to extend and deform when the extended thermally conductive coating is extended and deformed to adapt to and fit the ear canal, so that the extended antibacterial coating is used to clamp and abut against the inner wall of the ear canal.

3. The hearing aid system according to claim 2, characterized in that, The extended antibacterial coating is a nanocomposite hydrogel coating, a metal-ceramic multilayer coating, or a zwitterionic polymer coating.

4. The hearing aid system according to claim 2, characterized in that, The outer peripheral wall of the extended thermally conductive coating layer is provided with a plurality of second connecting protrusions, which are spaced apart, and the extended antibacterial coating is attached to each of the second connecting protrusions on the extended thermally conductive coating layer.

5. The hearing aid system according to claim 1, characterized in that, The bottom of the first housing is provided with a mounting part, which surrounds the first mounting groove. The inner wall of the second mounting groove is provided with a connecting ring groove. The mounting part is located in the connecting ring groove and is sealed to the second housing, so that the first housing covers the second mounting groove and is sealed to the second housing.

6. The hearing aid system according to claim 1, characterized in that, The hearing aid body further includes a microphone assembly, an amplifier assembly, and a speaker assembly. The amplifier assembly is connected to both the microphone assembly and the speaker assembly, and is electrically connected to both the microphone assembly and the speaker assembly. The amplifier assembly is located between the microphone assembly and the speaker assembly. The microphone assembly is located in the second mounting slot and connected to the second housing. The amplifier assembly is located in the second mounting slot and connected to the second housing. The speaker assembly is located in the receiving cavity and connected to the first housing. The speaker assembly is correspondingly arranged with the first sound transmission channel.

7. The hearing aid system according to claim 6, characterized in that, The hearing aid body also includes a battery assembly and a charging assembly. The battery assembly is mounted on the charging assembly and is electrically connected to the charging assembly. The battery assembly is located in the second mounting slot. The charging assembly is located in the second mounting slot and connected to the second housing. The battery assembly is located between the microphone assembly and the charging assembly. The microphone assembly, the amplifier assembly, and the speaker assembly are all electrically connected to the battery assembly. The charging assembly is used to electrically connect to an external power source.

8. The hearing aid system according to claim 1, characterized in that, The supporting connection layer is a methyl vinyl silicone rubber layer, a high-hardness vapor-phase silicone rubber layer, or a phenyl silicone rubber layer.

9. The hearing aid system according to claim 1, characterized in that, The thermosensitive deformation layer is a thermosensitive hydrogel deformation layer or a polycaprolactone deformation layer.

10. The hearing aid system according to claim 1, characterized in that, The extended thermally conductive coating layer is a TPU coating layer or a silicone rubber coating.

Citation Information

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