3D printing customized hearing-aid earphone

Abstract

The utility model belongs to the technical field of hearing aids, and particularly relates to a 3D printing customized hearing aid earphone which comprises an earphone body obtained through 3D printing, an electronic module is arranged on the earphone body, an earplug is arranged at one end of the earphone body, an ear hook is arranged at the other end of the earphone body, and the ear hook is in a shape matched with the auricle so as to be hung on the auricle. The electronic module comprises a first battery, a receiver, a microphone and a controller, and the controller is electrically connected to the first battery and is in communication connection with the receiver and the microphone. Therefore, the problems that in the prior art, a hearing-aid earphone is poor in auricle adaptability, poor in hearing-aid effect and inconvenient to wear are solved.

Description

Technical Field

[0001] This utility model belongs to the field of hearing aid technology, specifically relating to a 3D printed custom hearing aid earphone. Background Technology

[0002] Hearing aids are often manufactured using standardized methods, which can improve production efficiency and reduce costs for companies. However, due to individual differences among users, this can lead to discomfort during wear. Standardized designs cannot adapt to the unique shape of each user's ear, thus affecting the comfort and sound quality of the hearing aids. For example, for users with special or irregular ear shapes, traditional behind-the-ear hearing aids often feel unstable and increase the risk of falling out during daily use.

[0003] Because hearing aids require multiple independent components and connecting cables, they increase the overall size and weight of the device and can easily lead to excessively long signal transmission paths, generating electromagnetic interference and affecting system stability and performance. Many existing hearing aids are made of plastic, which is easily affected by wear and impact during daily use, exhibiting lower durability and performance stability. Especially in humid or sweaty environments, traditional hearing aids face challenges, as they are susceptible to corrosion, affecting both device performance and appearance.

[0004] In current headphone designs, users cannot replace key components such as the housing of the balanced armature driver, the primary battery, and the PCB assembly, resulting in a shortened lifespan for hearing aids. Furthermore, the irreversible nature of primary battery wear, coupled with the non-modular design making the primary battery non-replaceable, further contributes to the generation of electronic waste.

[0005] To address the problems of poor fit to the ear, inadequate hearing aid performance, and inconvenience in wearing existing hearing aids, it is necessary to optimize and improve the structure of current hearing aids in order to solve these technical problems. Utility Model Content

[0006] The purpose of this invention is to provide a 3D-printed custom hearing aid to solve the problems of poor fit to the auricle, poor hearing aid effect, and inconvenience of wearing existing hearing aids.

[0007] To achieve the above objectives, this utility model provides a 3D-printed custom hearing aid earphone, including a body obtained by 3D printing, an electronic module on the body, an earplug at one end of the body, and an ear hook at the other end. The ear hook is formed to fit the auricle so that it can be hung on the auricle.

[0008] The electronic module includes a first battery, a receiver, a microphone, and a controller. The controller is electrically connected to the first battery and communicatively connected to the receiver and the microphone.

[0009] In one possible design, the lower end of the ear hook is provided with a battery compartment, in which a second battery is detachably disposed and electrically connected to a power management module disposed in the ear hook; the end of the ear hook is provided with a male plug, and the body is provided with a female plug that is compatible with the male plug; when the male plug is inserted into the female plug, the second battery can be electrically connected to the first battery.

[0010] In one possible design, the bottom surface of the ear hook is provided with charging contacts for connecting to an external power source.

[0011] In one possible design, the bottom surface of the ear hook is configured as a plane.

[0012] In one possible design, the male plug has a positioning post with a limiting hole, and a first conductor electrically connected to the second battery is provided in the limiting hole; the female plug has a positioning hole adapted to the positioning post, and a second conductor connected to the first battery is provided in the positioning hole, with the second conductor being disposed opposite to the first conductor.

[0013] In one possible design, the outer periphery of the positioning post is provided with a protruding stop ring, and the top of the positioning hole is provided with a pressure cylinder adapted to the stop ring to limit the movement range of the positioning post.

[0014] In one possible design, the ear hook includes a connecting section, an ear hook section, and an extension section connected in sequence. The connecting section is detachably connected to the body, and the ear hook section is made of a flexible material. The extension section has an earphone compartment, and a second battery is disposed in the earphone compartment.

[0015] In one possible design, the cross-sectional dimensions of the extension gradually increase in the direction away from the ear hook segment.

[0016] In one possible design, the ear hook segment is made of silicone material.

[0017] In one possible design, the connection between the earplug and the body is provided with a sealing structure.

[0018] The aforementioned technical solution utilizes 3D printing technology to create the hearing aid body, allowing for personalized customization based on the user's ear scan data to ensure a perfect fit to the auricle and ear canal. The ear hook is shaped to conform to the auricle, providing a secure and comfortable fit. Furthermore, the ear scan data obtained before 3D printing ensures highly targeted data for optimal comfort and stability. The choice of 3D printing materials and the ear hook design provide a lightweight and comfortable wearing experience, reducing discomfort during prolonged use. The integrated electronic module precisely processes and amplifies sound signals, improving hearing aid effectiveness and allowing users to hear surrounding sounds more clearly. Simultaneously, the integrated electronic module simplifies the structural design, reduces potential failure points, and enhances product reliability and maintainability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the 3D-printed customized hearing aid provided by this utility model in a wearing state;

[0021] Figure 2 This is a three-dimensional structural diagram of the 3D-printed customized hearing aid provided by this utility model in one embodiment;

[0022] Figure 3 This is a cross-sectional view of one embodiment of the 3D-printed custom hearing aid provided by this utility model;

[0023] Figure 4 yes Figure 3 A magnified structural diagram of part A in the middle;

[0024] Figure 5 This is a schematic diagram of the electronic module in one embodiment of the 3D-printed customized hearing aid provided by this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the 3D-printed custom hearing aid earphone middle ear hook provided by this utility model in one embodiment.

[0026] In the above figures: 1-ear hook, 11-connecting section, 12-ear hook section, 13-extension section, 2-body, 3-earplug, 4-electronic module, 41-first battery, 42-receiver, 43-microphone, 44-controller, 45-chip, 5-ear, 51-auricle, 6-power management module, 7-male plug, 71-positioning post, 72-limiting hole, 73-first conductor, 74-stop ring, 8-female plug, 81-positioning hole, 82-second conductor, 83-pressure cylinder, 9-second battery, 10-charging contact. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that while the description of these embodiments is intended to aid in understanding the present invention, it does not constitute a limitation thereof. The specific structural and functional details disclosed herein are only for describing exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0028] According to a first aspect of this utility model, a 3D-printed custom hearing aid headphone is provided. Wherein, Figures 1 to 6 One specific embodiment is shown.

[0029] See Figures 1 to 6 As shown, the 3D-printed custom hearing aid includes a body 2 obtained by 3D printing. An electronic module 4 is provided on the body 2. One end of the body 2 is provided with an earplug 3, and the other end is provided with an ear hook 1. The ear hook 1 is formed to fit the auricle 51 so that it can be hung on the auricle 51. The electronic module 4 includes a first battery 41, a receiver 42, a microphone 43, and a controller 44. The controller 44 is electrically connected to the first battery 41 and communicatively connected to the receiver 42 and the microphone 43.

[0030] The working process of this 3D-printed custom hearing aid is summarized as follows: Microphone 43 collects external sound signals, and controller 44 processes and amplifies the received sound signals, adjusting the volume and frequency response. The processed audio signal is transmitted to the user through receiver 42, helping them hear surrounding sounds more clearly. A first battery 41 provides power to the entire system, ensuring long-term use.

[0031] Through the above technical solution, the device body 2 is manufactured using 3D printing technology. It can be personalized based on the user's ear scan data, ensuring a perfect fit to the auricle 51 and ear canal. The ear hook 1 is shaped to fit the auricle 51, allowing it to be securely hung on the auricle 51, providing excellent wearing comfort and stability. Furthermore, before manufacturing the device body 2 using 3D printing technology, a user's ear scan is required, resulting in highly targeted data that ensures optimal wearing comfort and stability. The selection of 3D printing materials and the design of the ear hook 1 provide a lightweight and comfortable wearing experience, reducing discomfort during prolonged use. The integrated electronic module 4 can precisely process and amplify sound signals, improving the hearing aid effect and allowing the user to hear surrounding sounds more clearly. Simultaneously, the electronic module 4 is integrated within the device body 2, simplifying the structural design, reducing potential failure points, and improving product reliability and maintainability.

[0032] It's important to note that 3D printing materials should be biocompatible, lightweight, and robust, such as titanium alloys, ceramics, carbon fiber composites, or high-performance resins to manufacture the outer shell. This allows for personalized customization based on the user's ear canal, concha, and outer ear shape, ensuring a perfect fit and comfortable wear. 3D printing enables complex and intricate structures, optimizing acoustic performance and internal space utilization. Simultaneously, the diverse material choices enhance the headphones' durability and performance, meeting the needs of different users. The additive manufacturing method of 3D printing improves production efficiency, reduces material waste, supports small-batch, diversified customization, lowers production costs, and achieves environmentally friendly manufacturing. The integrated design makes the headphone structure compact and stable, facilitating future functional upgrades and maintenance.

[0033] Furthermore, 3D printing technology is a current technology, so this disclosure will not elaborate on it further. However, it is important to ensure assembly accuracy, especially for the parts that contact the auricle 51 and the ear canal, to ensure the comfort and stability of the hearing aid during wear.

[0034] In one embodiment of this disclosure, the lower end of the ear hook 1 is provided with a battery compartment, in which a second battery 9 is detachably disposed. The second battery 9 can be easily removed and installed for replacement and charging. The second battery 9 is electrically connected to a power management module 6 disposed in the ear hook 1 to ensure power supply and data transmission. The end of the ear hook 1 is provided with a male plug 7, and the body 2 is provided with a female plug 8 compatible with the male plug 7. When the male plug 7 is inserted into the female plug 8, the second battery 9 is electrically connected to the first battery 41, thereby supplying power (charging) to the first battery 41 in the body 2 through the second battery 9, ensuring the normal operation of the entire machine.

[0035] Operating principle: The user inserts the second battery 9 into the battery compartment, ensuring it is secure and electrically connected to the power management module 6. When the male plug 7 is inserted into the female plug 8, the second battery 9 powers the power management module 6 and other electronic components via electrical connection and transmits necessary control signals. The power management module 6 manages the power output of the second battery 9 and coordinates the operation of components such as the microphone 43 and receiver 42 to ensure efficient sound processing and transmission.

[0036] By setting a battery compartment at the lower end of the ear hook 1 and adopting a removable second battery 9 and plug connection design, the modularity and maintainability of the hearing aid can be significantly improved, enhancing the user's convenience and flexibility, thereby providing a stable power supply and signal transmission guarantee.

[0037] In this disclosure, the positioning hole 81 and the positioning post 71 are used in an interference fit to achieve a tight fit between the male plug 7 and the female plug 8.

[0038] In other embodiments, an external thread can be provided on the outer periphery of the positioning post 71, and an internal thread can be provided in the positioning hole 81, thereby achieving a tight fixation of the male plug 7 and the female plug 8 through the threaded connection of the two.

[0039] In another embodiment, a locking platform can be provided on the positioning post 71, and a locking slot adapted to the locking platform can be provided on the female plug 8, thereby achieving a tight fit between the two through the cooperation of the locking platform and the locking slot.

[0040] Furthermore, the bottom surface of the ear hook 1 is provided with charging contacts 10 for connecting to an external power source for charging.

[0041] The charging contact 10 should have good conductivity and corrosion resistance to ensure reliability and stability during long-term use.

[0042] The charging contact 10 can be designed as a magnetic, spring-loaded, or contact type to adapt to different charging devices and usage scenarios.

[0043] During charging, the user contacts the charging contacts 10 on the bottom of the ear hook 1 with the charging dock or charging cable of an external power source to begin the charging process. The built-in power management module 6 (e.g., a management system) can monitor the charging status of the first battery 41 to prevent overcharging, over-discharging, and other problems, ensuring safe charging. Charging indicator lights or vibration feedback remind the user of the charging status and completion, providing real-time operational feedback.

[0044] The detachable and rechargeable design of the ear hook 1 significantly improves the usability of the hearing aid, allowing users to easily replenish the first battery 41 and extend its battery life. Furthermore, the detachable connection structure of the ear hook 1 allows users to operate flexibly according to their actual needs, making it particularly useful for special groups such as the elderly, children, and the disabled, greatly enhancing the user experience.

[0045] In one exemplary embodiment, the bottom surface of the ear hook 1 is configured as a plane. The planar design of the bottom surface of the ear hook 1 allows it to better fit with other accessories (such as a charging dock), ensuring reliable and stable connection. Simultaneously, the planar design provides a larger contact area, enhancing the stability of the ear hook 1 when placed and reducing the risk of tipping or sliding.

[0046] In this disclosure, the charging contact 10 can be integrated on the flat bottom surface to ensure good contact with the external power source and improve charging efficiency.

[0047] In one embodiment provided in this disclosure, the male plug 7 is provided with a positioning post 71, and the positioning post 71 has a limiting hole 72. The limiting hole 72 has a first conductor 73 electrically connected to the second battery 9. The female plug 8 is provided with a positioning hole 81 adapted to the positioning post 71 for insertion into the female plug 8. The design of the positioning post 71 and the positioning hole 81 ensures precise alignment of the male plug 7 and the female plug 8, improving the reliability of the connection. The positioning hole 81 has a second conductor 82 connected to the first battery 41. The second conductor 82 is arranged opposite to the first conductor 73, ensuring that when the male plug 7 is inserted into the female plug 8, the first conductor 73 and the second conductor 82 can maintain good conductivity and contact stability, avoiding poor contact or open circuit. Stable connection and reliable electrical transmission improve the overall user experience and reduce inconvenience caused by connection problems.

[0048] Specifically, when the male plug 7 is inserted into the female plug 8, the positioning pin 71 inserts into the positioning hole 81, ensuring that the two are aligned and fit tightly. The first conductor 73 and the second conductor 82 are positioned opposite each other to ensure electrical connection, enabling the second battery 9 to power the power management module 6 and other electronic components. The built-in charging management system monitors the charging status of the first battery 41 to prevent overcharging, over-discharging, and other problems, ensuring safe charging.

[0049] By providing a positioning post 71 and a limiting hole 72 on the male plug 7, and a first conductor 73 electrically connected to the second battery 9 therein, and by providing a matching positioning hole 81 and a second conductor 82 on the female plug 8, the electrical connection stability and reliability of the hearing aid can be significantly improved. This design not only ensures a precise electrical connection, but also enhances the stability and protection of the connection, making it suitable for various usage scenarios.

[0050] Furthermore, the outer periphery of the positioning post 71 is provided with a protruding stop ring 74, and the top of the positioning hole 81 is provided with a pressing cylinder 83 that is adapted to the stop ring 74, so as to limit the movement range of the positioning post 71 and prevent over-insertion.

[0051] Specifically, when the male plug 7 is inserted into the female plug 8, the positioning pin 71 is inserted into the positioning hole 81. The stop ring 74 cooperates with the pressure cylinder 83 to limit the movement range of the positioning pin 71 and ensure consistent insertion depth. Thus, the cooperation between the stop ring 74 and the pressure cylinder 83 ensures consistent insertion depth of the positioning pin 71, avoiding poor contact or loosening problems caused by excessive or shallow insertion.

[0052] In a specific embodiment of this disclosure, the ear hook 1 includes a connecting section 11, an ear hook section 12, and an extension section 13 connected in sequence. The connecting section 11 is detachably connected to the body 2 for easy maintenance and replacement. Specifically, the detachable connection can be achieved using snap-fit, threaded, or magnetic methods to ensure a stable and convenient connection.

[0053] The ear hook section 12 is made of flexible material, providing a soft touch and a good fit, so that when the user wears the hearing aid, the ear hook 1 can better fit the auricle 51 of different shapes, increase friction and support, and improve the stability and comfort of wearing.

[0054] The extension section 13 is equipped with an earphone compartment, and the second battery 9 is located in the earphone compartment, thereby providing additional power support for the hearing aid earphone and extending its usage time.

[0055] It should be noted that the earphone case uses a sealed structure (such as a sealing gasket) to prevent sweat, rain, dust, etc. from entering the earphone case, thereby protecting the internal components inside the earphone case.

[0056] In this disclosure, the cross-sectional dimensions of the extension segment 13 gradually increase in the direction away from the body 2, forming a gradient shape. This results in a larger contact area between the ear hook 1 and the auricle 51, increasing friction and support, and reducing the possibility of slipping. At the same time, the gradient design allows the ear hook 1 to conform to the natural curve of the auricle 51, reducing discomfort during prolonged wear and improving user comfort.

[0057] In addition, the ear hook 1 has a gradient design, which increases its volume to fit behind the ear, thus increasing the space available for installing, for example, the power management module 6 and the first battery 41.

[0058] In this disclosure, the ear hook segment 12 is made of silicone. This allows the ear hook segment 12 to better conform to the natural curve of the auricle 51, providing a soft touch and distributing pressure, reducing discomfort during prolonged wear. Simultaneously, it increases the friction between the ear hook segment 12 and the auricle 51, providing better support and fixation, reducing the likelihood of slippage. Therefore, it improves the wearing comfort and stability of the hearing aid, making it particularly suitable for users who need to wear it for extended periods, ensuring a secure and reliable fit every time.

[0059] Specifically, the flexible material used for the ear hook segment 12 is medical-grade silicone.

[0060] In other embodiments, the ear hook segment 12 may also be made of TPE (thermoplastic elastomer) or other highly elastic and flexible materials.

[0061] In this disclosure, a sealing structure is provided at the connection between the earbud 3 and the main body 2. Specifically, a sealing ring is provided at the joint between the two, thereby preventing sweat and water droplets from entering the earphone, improving the durability and reliability of the earphone. The earphone can work normally in a variety of harsh weather conditions (such as rain or sandstorms), and is particularly suitable for users who engage in high-intensity outdoor sports such as running, cycling, and skiing, ensuring excellent performance in a variety of usage scenarios.

[0062] In one embodiment provided in this disclosure, the controller 44 is communicatively connected to a terminal. The terminal is configured as a computer, tablet, or smartphone, allowing the user to view parameters such as the usage status and location information of the hearing aid from a distance.

[0063] In this disclosure, the controller 44 employs a printed circuit board (PCB) as in the prior art.

[0064] In other embodiments, the controller 44 may also be configured as a digital signal processor (DSP), an application-specific integrated circuit (ASIC), or a field-programmable gate array (FPGA).

[0065] Furthermore, in this disclosure, multiple functional modules, including the core chip 45, Bluetooth communication module, first battery 41, capacitor, resistor, microphone 43, and receiver 42, are integrated onto a single printed circuit board (PCB, i.e., the controller 44 mentioned in the text), thereby achieving a high degree of functional integration. This design effectively reduces the overall size and weight of the device, meeting the demands of modern electronic devices for miniaturization and lightweight design.

[0066] By tightly integrating multiple functional modules onto a single printed circuit board (PCB), the optimized layout maximizes space utilization and reduces reliance on external components and wiring, thereby minimizing signal attenuation and interference. This design simplifies the manufacturing process, reduces production costs, and improves data transmission stability and reliability by shortening signal transmission paths and reducing electromagnetic interference. Simultaneously, the integrated power management module ensures a stable voltage and current supply, enhancing system stability. This highly integrated design not only makes the product more aesthetically pleasing but also provides flexibility for functional expansion and customization, meeting diverse application needs.

[0067] Specifically, the microphone 43 is configured as a MEMS microphone 43, the receiver 42 is configured as a MEMS receiver 42, and the microphone 43 and receiver 42 are fixed on the controller 44 by adhesive bonding, which facilitates assembly.

[0068] In this disclosure, the receiver 42 may also be equipped with a loudspeaker. The loudspeaker employs efficient moving-coil or planar magnetic drive technology, possessing a sensitive frequency response and wide sound coverage to ensure high-quality audio signal reproduction. Simultaneously, the loudspeaker incorporates a digital signal processor (DSP) for real-time audio adjustment, automatically optimizing sound quality based on ambient noise.

[0069] To enrich the functionality of these hearing aids, a smart voice assistant is deeply integrated, providing a convenient voice interaction experience. It supports mainstream voice assistants such as Siri, Google Assistant, and Amazon Alexa, catering to different user habits. Users can quickly activate the voice assistant via physical buttons or touch controls on the headphones, completing operations without taking out their phones. Users can perform operations such as playback control, volume adjustment, making calls, sending messages, and querying information via voice, freeing their hands. Personalized voice wake-up words can be set to enhance the interactive experience and privacy. The integration of the smart voice assistant transforms the headphones from mere audio devices into intelligent assistants for the user, bringing an efficient and convenient interaction method.

[0070] The accompanying standalone app for these headphones boasts comprehensive features, including module management and configuration, automatically identifying and managing different headphone modules and supporting firmware updates; health monitoring and data analysis, providing real-time hearing aid monitoring, blood oxygen monitoring, blood pressure monitoring, sleep monitoring, step counting, activity tracking, fall warnings, GPS positioning, and offering historical analysis and personalized health suggestions; personalized settings, allowing users to customize sound effects, interface themes, and shortcuts; social networking and sharing, supporting sharing health data to social media platforms and participating in community interactions; smart notifications and reminders, receiving mobile phone notifications and setting health-related reminders; multi-device synchronization, supporting cross-platform use and cloud data backup; a smart voice assistant, controlling headphone functions via voice commands; and security and privacy protection, employing advanced data encryption and permission management. Furthermore, the app provides online customer service and convenient feedback channels to ensure users receive timely support and continuous improvement throughout their experience. Overall, the standalone app, through its rich personalization and intelligent features, significantly enhances the user experience and the product's market competitiveness.

[0071] The controller 44 integrates a high-performance Bluetooth 4.2 / 5.0 chip 45, supporting multiple Bluetooth protocols to ensure a stable connection with smart devices. The control module also includes a high-sensitivity multi-microphone array 43 with advanced noise cancellation to ensure accurate voice recognition in noisy environments.

[0072] The first battery 41 is a long-life lithium polymer battery, providing at least 12 hours of continuous use. The second battery 9 is designed for easy replacement by the user, improving the convenience of using the headphones. The first battery 41 management system aims to optimize charging efficiency, extend the lifespan of the first battery 41, and protect its performance.

[0073] This module includes integrated sensors (such as heart rate and gait sensors) and features pressure measurement and activity recognition capabilities. Its data is synchronized in real-time via Bluetooth to a companion app, providing users with comprehensive health data analysis and recommendations.

[0074] The main body (earphone shell) is a key component integrating protection, functionality, aesthetics, and expandability. It not only effectively protects the delicate internal components from external environmental damage, extending product lifespan, but also improves heat dissipation, wearing comfort, and overall appearance. Furthermore, its modular design provides more possibilities for product upgrades and personalized customization, significantly impacting the overall quality and market competitiveness of the headphones.

[0075] The driver unit is activated by an electrical signal, converting the sound signal into sound waves. The built-in DSP can respond in real time to the user's usage scenario, automatically adjusting the volume and effects in noisy environments or quiet reading spaces to provide the user with the best listening experience.

[0076] The first battery 41 uses a lithium polymer battery with high energy density, which can provide power for a long time while maintaining a lightweight design. It also supports fast charging technology, giving the headphones good battery life during long-term use.

[0077] The main function of the health monitoring module is to continuously track users' health indicators and provide real-time feedback through a synchronized application. Users can understand their personal health status through a visual interface and generate personalized health management plans using the data.

[0078] The controller 44 is responsible for all intelligent operations of the headphones. It communicates with mobile phones or other devices via Bluetooth, receives user voice commands, and converts them into control signals. For example, users can adjust the volume, switch modes, or activate the voice assistant with simple commands. These operations are simple and convenient, improving the user experience.

[0079] The method for manufacturing 3D-printed custom hearing aids disclosed herein is as follows:

[0080] ① User ear scan: A high-precision 3D ear scanner is used to perform a comprehensive scan of the user's ear canal and auricle 51 to obtain complete three-dimensional ear data.

[0081] ② Data processing and model optimization: The scanned 3D model is imported into computer-aided design (CAD) software for post-processing to eliminate unnecessary details, enhance structural strength, and perform simulation analysis on the headphone shell, internal cavity and ventilation design to ensure the best sound wave propagation effect.

[0082] ③ 3D Printing Production: Based on the CAD model, 3D printing technology (such as selective laser melting or photopolymerization) is used for printing. High-strength titanium alloy or resin is specifically selected to ensure the shell possesses both good strength and toughness.

[0083] ④ Modular component design: The headphones are equipped with different functional modules (such as audio signal processing module, wireless communication module, auxiliary power supply module, etc.) to ensure compatibility and interchangeability between modules, so that users can flexibly replace or upgrade the required functions according to their personal needs.

[0084] ⑤ Intelligent Function Integration and Testing: Through embedded development, and by integrating with various mainstream intelligent voice assistants (such as Alexa, Google Assistant, etc.), voice interaction functionality is implemented. After completion, rigorous compatibility and performance testing is conducted to ensure the reliability and consistent sound quality of the headphones under various complex environments.

[0085] Hearing aid headphones that pass the inspection are considered finished products.

[0086] Finally, it should be noted that this utility model is not limited to the above-described optional embodiments, and anyone can derive other various forms of products under the guidance of this utility model. The above specific embodiments should not be construed as limiting the scope of protection of this utility model, which should be determined by the claims, and the description can be used to interpret the claims.

Claims

1. A 3D-printed custom hearing aid headphone, characterized in that, The device includes a 3D-printed body with an electronic module, an earplug at one end and an ear hook at the other end, the ear hook being shaped to fit the auricle so that it can be hung on the auricle. The electronic module includes a first battery, a receiver, a microphone, and a controller. The controller is electrically connected to the first battery and communicatively connected to the receiver and the microphone.

2. The 3D-printed custom hearing aid headphones according to claim 1, characterized in that, The lower end of the ear hook is provided with a battery compartment, in which a second battery is detachably disposed and electrically connected to a power management module disposed in the ear hook; the end of the ear hook is provided with a male plug, and the body is provided with a female plug that is compatible with the male plug; when the male plug is inserted into the female plug, the second battery can be electrically connected to the first battery.

3. The 3D-printed custom hearing aid headphones according to claim 2, characterized in that, The bottom surface of the ear hook is provided with charging contacts for connecting to an external power source.

4. The 3D-printed custom hearing aid headphones according to claim 3, characterized in that, The bottom surface of the ear hook is configured as a plane.

5. The 3D-printed custom hearing aid headphones according to claim 2, characterized in that, The male plug is provided with a positioning post, and the positioning post has a limiting hole. The limiting hole has a first conductor electrically connected to the second battery. The female plug is provided with a positioning hole adapted to the positioning post. The positioning hole has a second conductor connected to the first battery. The second conductor is arranged opposite to the first conductor.

6. The 3D-printed custom hearing aid headphones according to claim 5, characterized in that, The positioning post has a protruding stop ring on its outer periphery, and the top of the positioning hole has a pressure cylinder that matches the stop ring to limit the movement range of the positioning post.

7. The 3D-printed custom hearing aid headphones according to claim 1, characterized in that, The ear hook includes a connecting section, an ear hook section, and an extension section connected in sequence. The connecting section is detachably connected to the body, and the ear hook section is made of flexible material. The extension section has an earphone compartment, and a second battery is disposed in the earphone compartment.

8. The 3D-printed custom hearing aid headphones according to claim 7, characterized in that, The cross-sectional dimensions of the extended section gradually increase in the direction away from the ear hook section.

9. The 3D-printed custom hearing aid headphones according to claim 7, characterized in that, The ear hook section is made of silicone material.

10. The 3D-printed custom hearing aid headphones according to any one of claims 1 to 9, characterized in that, The connection between the earplug and the body is provided with a sealing structure.

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