Hearing aid earphone and binaural adjustable hearing aid

Abstract

The utility model discloses a hearing aid earphone and a binaural adjustable hearing aid. The hearing-aid earphone comprises a rear cavity shell, the front end face of the rear cavity shell is fixed to a front cavity shell, a loudspeaker is installed in a cavity formed after the rear cavity shell and the front cavity shell are buckled, a buckle cover is installed on the rear end face of the rear cavity shell, a sound leakage groove is formed in the rear end face of the rear cavity shell, a sound inlet hole is formed in one end of the sound leakage groove, and a sound outlet hole is formed in the other end of the sound leakage groove. When the buckling cover is buckled on the rear end face of the rear cavity shell, the other end, serving as the groove tail end, of the sound leakage groove is opposite to the sound leakage hole in the buckling cover, and the sound inlet hole, the sound leakage groove and the sound leakage hole form a sound leakage channel which releases low-frequency sound and keeps high-frequency sound to prevent howling. The utility model has the advantages of preventing howling caused by high-frequency sound leakage, improving sound quality and sound insulation effect, improving user hearing experience and the like.

Description

Technical Field

[0001] The utility model relates to a hearing-aid earphone and a binaural adjustable hearing aid for multi-person communication in complex scenes, belonging to the technical field of hearing-aid equipment. Background Art

[0002] There are various hearing aid devices on the market, and their main components are hearing aid headphones. Figure 7 A common hearing aid earphone is shown, comprising a rear housing 91 with an ear stem 95. The front end of rear housing 91 is fixed to a front housing 94, and the cavity formed by the engagement of rear housing 91 and front housing 94 houses a speaker 93. The rear end of rear housing 91 is provided with a hole 910, and a cover 92 is provided on the rear end of rear housing 91. When cover 92 is engaged with the rear end of rear housing 91, hole 910 faces a pressure relief hole 920 on cover 92. In actual use, the design of hole 910 and pressure relief hole 920 allows air to flow freely within speaker 93, preventing pressure buildup and resulting changes in sound quality. However, when the speaker 93 plays high-frequency and low-frequency sounds, both the low-frequency and high-frequency sounds will leak directly to the outside through the hole 910 and the pressure relief hole 920. The leakage of high-frequency sounds can easily cause howling, reducing the clarity and fidelity of the played sound, making it difficult for users to accurately hear the details in the audio, which greatly affects the user's auditory experience. Utility Model Content

[0003] The purpose of the utility model is to provide a hearing-aid headset and a binaural adjustable hearing aid, which have the advantages of preventing howling caused by leakage of high-frequency sound, improving sound quality and sound insulation, and enhancing the user's auditory experience.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A hearing aid earphone includes a rear cavity shell, the front end face of the rear cavity shell is fixed to the front cavity shell, and a speaker is installed in the cavity formed by the rear cavity shell and the front cavity shell being buckled together, and a buckle cover is installed on the rear end face of the rear cavity shell, the rear end face of the rear cavity shell is provided with a sound leakage groove, and one end of the sound leakage groove is provided with a sound inlet hole, wherein, when the buckle cover is buckled on the rear end face of the rear cavity shell, the other end of the sound leakage groove as the end of the groove is opposite to the sound leakage hole on the buckle cover, and the sound inlet hole, the sound leakage groove and the sound leakage hole constitute a sound leakage channel for releasing low-frequency sound and retaining high-frequency sound to prevent howling.

[0006] A binaural adjustable hearing aid comprises a U-shaped neck loop, with an end shell mounted at each end of the neck loop, each end shell being provided with a volume-up key and a volume-down key, one of the end shells being provided with a DIP switch and a multi-function button, a processor being provided within the neck loop or the end shell, the processor being electrically connected to the volume-up key, the volume-down key, the DIP switch, and the multi-function button, wherein each end of the neck loop is provided with a hearing aid earphone, each hearing aid earphone being provided with a microphone, and each hearing aid earphone and the corresponding microphone being electrically connected to the processor via the same earphone cable.

[0007] The advantages of the utility model are:

[0008] 1. The sound leakage channel design composed of the sound inlet hole, sound leakage groove and sound leakage hole in the hearing aid earphone of the present invention, on the one hand, serves the purpose of pressure relief, allowing air to flow freely in the hearing aid earphone to prevent pressure accumulation and change in sound quality. On the other hand, it effectively guides low-frequency sounds out while retaining high-frequency sounds, greatly reducing the leakage of high-frequency sounds, thereby preventing howling and reducing the interference of high-frequency sounds on the sound quality. The sound quality is improved and the clarity and fidelity of the played sound are greatly improved. In addition, the reduction of high-frequency leakage can greatly improve the sound insulation effect of the hearing aid earphone, reduce external noise interference, enable users to hear the details in the audio more accurately, and enhance the user's auditory experience. It is particularly suitable for complex scenes with multiple people.

[0009] 2. In addition to the beneficial effects of the above-mentioned hearing aid headphones, the binaural adjustable hearing aid of the present invention also realizes the functions of hearing aid for both ears and adjustable volume for both ears. In addition, the binaural adjustable hearing aid of the present invention is also equipped with a remote microphone device, which can realize remote communication, better enhance the user's auditory experience, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structural decomposition of the hearing-aid earphone of the present invention.

[0011] Figure 2 yes Figure 1 A partial enlarged schematic diagram.

[0012] Figure 3 It is a structural schematic diagram of the utility model of a binaural adjustable hearing aid.

[0013] Figure 4 The utility model is a circuit block diagram of a binaural adjustable hearing aid.

[0014] Figure 5 is a schematic diagram of a remote microphone device.

[0015] Figure 6This is a block diagram of the circuit composition of the remote microphone device.

[0016] Figure 7 This is a schematic diagram of the partial structural decomposition of existing hearing aid headphones. DETAILED DESCRIPTION

[0017] like Figures 1 to 2 As shown, the utility model proposes a hearing aid earphone 10, including a rear cavity shell 11, the front end face of the rear cavity shell 11 is fixed to the front cavity shell 15 and a speaker 14 is installed in the cavity formed after the rear cavity shell 11 and the front cavity shell 15 are buckled together, and the rear end face of the rear cavity shell 11 is installed with a buckle cover 13, in particular, the rear end face of the rear cavity shell 11 is provided with a sound leakage groove 111, and one end of the sound leakage groove 111 is provided with a sound inlet hole 112, wherein, when the buckle cover 13 is buckled on the rear end face of the rear cavity shell 11, the sound leakage groove 111 as the other end of the groove end 113 is opposite to the sound leakage hole 131 on the buckle cover 13, and the sound inlet hole 112, the sound leakage groove 111 and the sound leakage hole 131 constitute a sound leakage channel for releasing low-frequency sounds and retaining high-frequency sounds to prevent howling.

[0018] In the actual design, the sound leakage groove 111 is an arc with a radius of 270 degrees, extending along the circumference of the rear end surface of the rear cavity shell 11. Experimental testing has shown that a 270-degree arc effectively releases low-frequency sounds while retaining high-frequency sounds. While this is not a limitation and other arc values ​​are possible, a 270-degree arc for the sound leakage groove 111 is optimal. This structure achieves the aforementioned effects while simplifying the structural design of the rear end surface of the rear cavity shell 11, reducing manufacturing complexity and costs.

[0019] like Figure 2 The buckle cover 13 of the hearing aid earphone 10 of the present invention is in the form of a sheet, which not only provides a certain degree of protection for the internal components, but also has a non-through decorative hole 132 designed to match the sound leakage hole 131 .

[0020] The sound leakage hole 131 is a through hole extending through the buckle cover 13. Its shape and size can be designed based on actual needs and are not limited. The decorative hole 132 is not a through hole. Its shape, size, and arrangement can be reasonably designed based on the sound leakage hole 131 and are not limited. Furthermore, the shape and size of the sound inlet hole 112 and the slot end 113 are also not limited.

[0021] In the present invention, the sound inlet hole 112, the sound leakage groove 111 and the sound leakage hole 131 constitute a sound leakage channel. On the one hand, the sound leakage channel serves the purpose of pressure relief, allowing air to flow freely in the earphone to prevent pressure accumulation and changes in sound quality. On the other hand, the sound leakage channel effectively guides out low-frequency sounds while retaining high-frequency sounds, reducing the leakage of high-frequency sounds, thereby effectively preventing the generation of howling.

[0022] like Figure 1The rear end surface of the rear cavity shell 11 is also provided with a magnet assembly groove 115. Usually, the magnet assembly groove 115 is surrounded by the sound leakage groove 111. The sheet magnet 12 is provided in the magnet assembly groove 115. Figure 2 This structural design not only suppresses howling but also maximizes the space on the rear end of the rear cavity shell 11, reducing the structural complexity of the hearing aid earphone. The magnet 12 serves to hold two hearing aid earphones 10 together when not in use, making them easier to carry and store.

[0023] In addition, if Figure 2 A card slot 114 is also designed on the rear end surface of the rear cavity shell 11. Correspondingly, a card buckle (not shown in the figure) is designed on the buckle cover 13. The buckle cover 13 is fixed on the rear end surface of the rear cavity shell 11 by being clamped in the card slot 114.

[0024] like Figure 1 The rear end surface of the front cavity shell 15 is provided with a tuning net 16, and the front end surface of the front cavity shell 15 is provided with a speaker net 17. In practice, the front end surface of the front cavity shell 15 is also provided with an earplug (not shown in the figure).

[0025] In the present invention, the structure of the front cavity shell 15, the other structures on the rear cavity shell 11 except the rear end surface structure, the speaker 14, the tuning net 16, the speaker net 17 and the earplug are all existing structures of the existing hearing aid headphones. Figure 1 The front and rear end surfaces of the front cavity shell 15 and the front and rear end surfaces of the rear cavity shell 11 are usually circular, and the magnet 12, the speaker 14, the tuning net 16 and the speaker net 17 are also designed to be circular sheets accordingly.

[0026] The functions of the rear cavity shell 11 are, first, to provide the main installation space for the speaker 14. The cavity formed by the rear cavity shell 11 and the front cavity shell 15 is used to install the speaker 14. Second, it affects the resonance and reflection of the sound, thereby affecting the sound quality.

[0027] The loudspeaker 14, commonly known as a speaker, is a core sound-producing component used to convert electrical signals into sound signals for playback.

[0028] The front cavity shell 15 is used to cooperate with the rear cavity shell 11 to realize the installation of the speaker 14, and also plays a role in adjusting the acoustic performance to a certain extent.

[0029] The tuning net 16 is a mesh-shaped physical component used to adjust the frequency response of sound and improve the sound quality.

[0030] The speaker mesh 17 is a mesh-like physical component used to prevent foreign matter from entering, and can also play a certain role in regulating the propagation of sound.

[0031] like Figure 1The rear cavity shell 11 is connected to the ear handle 18, and the cable led out from the speaker 14 is sent out from the ear handle 18.

[0032] For the hearing aid earphone 10 of the present invention, when it is used and worn, the direction facing the ear is usually defined as the front, and the opposite direction is defined as the back.

[0033] The working principle of the hearing aid earphone 10 of the utility model is as follows:

[0034] Howling is usually caused by the sound output by the speaker 14 being picked up again by the microphone 20, forming a positive feedback loop, which causes the sound to be continuously amplified. In view of this, the present invention is designed with a special structure of the sound leakage channel. Specifically, when the microphone 20 receives the sound, it converts the sound into a digital signal and sends it to the processor 60. The processor 60 converts it into an analog signal and outputs it to the user's ear through the speaker 14. During the operation of the speaker 14, the sound signal it generates includes high-frequency sound and low-frequency sound. The high-frequency and low-frequency sounds will remain in the hearing aid earphone 10 of the present invention. The wavelength of high-frequency sound is shorter and the energy is relatively higher. On the contrary, the wavelength of low-frequency sound is longer. Therefore, the hearing aid earphone 10 of the present invention is designed with a special structure of the sound leakage channel. After high-frequency and low-frequency sounds enter the sound leakage channel through the sound inlet hole 112, they flow along the sound leakage channel. As a result of this flow, the low-frequency sound leaks out from the sound leakage hole 131, while the high-frequency sound cannot reach the end of the sound leakage channel (i.e., the groove end 113 of the sound leakage groove 111), and therefore does not leak out from the sound leakage hole 131 and remains. Specifically, when the high-frequency and low-frequency sounds flow along the sound leakage channel, the sound leakage channel causes the high-frequency sound to be reflected. The energy of the high-frequency sound is consumed or retained in the sound leakage channel during the flow process, and thus does not leak out, thereby preventing it from being picked up again by the microphone 20 and generating howling. In contrast, the low-frequency sound that does not generate howling can still be easily released to the outside through the sound leakage channel due to its longer wavelength.

[0035] The utility model also proposes a binaural adjustable hearing aid, such as Figure 3 and Figure 4 As shown, it includes a U-shaped neck ring 31, and an end shell 32 is installed at both ends of the neck ring 31. Each end shell 32 is provided with a volume increase button 51 and a volume decrease button 52, and one of the end shells 32 is provided with a DIP switch 54 and a multi-function button 53. A processor 60 is provided in the neck ring 31 or the end shell 32, and the processor 60 is electrically connected to the volume increase button 51, the volume decrease button 52, the DIP switch 54 and the multi-function button 53. Among them, each end of the neck ring 31 is equipped with a hearing aid earphone 10 of the utility model, and each hearing aid earphone 10 is equipped with a microphone 20. Each hearing aid earphone 10 and the corresponding microphone 20 are electrically connected to the processor 60 via the same earphone cable 40.

[0036] In actual design, the cable leading out of the speaker 14 and the cable leading out of the microphone 20 on the same side of the neck loop 31 together form the earphone cable 40. Figure 3 The microphone 20 is arranged near the hearing aid earphone 10 of the present invention so as to pick up the user's voice.

[0037] In actual use, the hearing aid earphone 10 and microphone 20 on one side of the neck loop 31 are used for the left ear, and the volume-up button 51 and volume-down button 52 on the same side are used to adjust the volume of the left ear's speaker 14. Similarly, the hearing aid earphone 10 and microphone 20 on the other side of the neck loop 31 are used for the right ear, and the volume-up button 51 and volume-down button 52 on the same side are used to adjust the volume of the right ear's speaker 14. It can be seen that the binaural adjustable hearing aid of the present invention can independently adjust the volume of the left and right ears, achieving independent hearing assistance and independent volume adjustment for both ears, further enhancing the user's auditory experience and meeting the diverse needs of users.

[0038] like Figure 4 , the figure shows a circuit block diagram of the binaural adjustable hearing aid of the present invention. Figure 4 The button group 50 shown in the figure includes a volume up button 51, a volume down button 52, a DIP switch 54 and a multi-function button 53. In practice, the end shell 32 may also be designed with an LED light 64 for displaying the operating status, etc. The LED light 64 is electrically connected to the processor 60.

[0039] like Figure 4 The processor 60 is also electrically connected to a call microphone 63 via a Bluetooth module 61. When the Bluetooth module 61 is turned on, it can communicate with the smartphone to make and receive calls, and the call microphone 63 is used to pick up the sound during the call to complete the call.

[0040] In actual design, the processor 60 is also electrically connected to the wireless receiver 62. Figure 5 and Figure 6 The binaural adjustable hearing aid of the present invention is also equipped with a remote microphone device 70 for realizing remote communication, wherein the remote microphone device 70 includes a wireless transmitter 71 with signal processing capability, and the wireless transmitter 71 is electrically connected to the remote microphone 72 and the audio interface 73. The wireless transmitter 71 is used to communicate wirelessly with the wireless receiver 62, thereby realizing wireless communication between the remote microphone device 70 and the binaural adjustable hearing aid of the present invention.

[0041] In actual design, Figure 6Remote microphone device 70 also includes a button 74 and an LED light 75. The button 74 is, for example, a DIP switch, and the LED light 75 is used to indicate the operating status. Remote microphone 72 is used to pick up sound. Audio interface 73 is used to connect to other sound pickup devices to transmit audio to wireless transmitter 71.

[0042] In the present invention, the processor 60 is, for example, a DSP processor, but is not limited thereto. The Bluetooth module 61, the wireless receiver 62, the wireless transmitter 71, and the audio interface 73 are existing technologies in the art.

[0043] The operating process of the utility model binaural adjustable hearing aid is as follows:

[0044] The binaural adjustable hearing aid of the present invention is turned on by the code switch 54. By designing a player, the binaural adjustable hearing aid of the present invention can immediately emit a prompt tone "turned on".

[0045] In the "powered on" state, the volume of the left and right ear speakers 14 can be adjusted individually as needed. Clicking the volume up button 51 gradually increases the volume, and clicking the volume down button 52 gradually decreases the volume.

[0046] In the "powered on" state, single-clicking the multi-function button 53 can pair the Bluetooth module 61 with the smart phone via Bluetooth. During pairing, there will be a prompt tone of "Bluetooth pairing" or "Bluetooth connected".

[0047] When the Bluetooth is connected, when playing music through the smart phone, single-clicking the multi-function button 53 pauses the music. When the smart phone calls, single-clicking the multi-function button 53 allows the user to answer the call using the microphone 63.

[0048] In addition, the volume can be adjusted by long pressing the volume up key 51 or single clicking the volume down key 52.

[0049] In the Bluetooth unconnected state, a single click of the multi-function button 53 can connect to the remote microphone device 70 to achieve remote communication.

[0050] In addition to the advantages of the hearing aid headset 10, the binaural adjustable hearing aid of the present invention also has the functions of independent hearing aid for both ears, independent volume adjustment for both ears, Bluetooth connection with smartphones, and remote communication function achieved by the remote microphone device 70.

[0051] The advantages of the utility model are:

[0052] 1. The sound leakage channel design composed of the sound inlet hole, sound leakage groove and sound leakage hole in the hearing aid earphone of the present invention, on the one hand, serves the purpose of pressure relief, allowing air to flow freely in the hearing aid earphone to prevent pressure accumulation and change in sound quality. On the other hand, it effectively guides low-frequency sounds out while retaining high-frequency sounds, greatly reducing the leakage of high-frequency sounds, thereby preventing howling and reducing the interference of high-frequency sounds on the sound quality. The sound quality is improved and the clarity and fidelity of the played sound are greatly improved. In addition, the reduction of high-frequency leakage can greatly improve the sound insulation effect of the hearing aid earphone, reduce external noise interference, enable users to hear the details in the audio more accurately, and enhance the user's auditory experience. It is particularly suitable for complex scenes with multiple people.

[0053] 2. In addition to the beneficial effects of the above-mentioned hearing aid headphones, the binaural adjustable hearing aid of the present invention also realizes the functions of hearing aid for both ears and adjustable volume for both ears. In addition, the binaural adjustable hearing aid of the present invention is also equipped with a remote microphone device, which can realize remote communication, better enhance the user's auditory experience, and is suitable for promotion.

[0054] The above is a preferred embodiment of the present invention and the technical principles used therein. For those skilled in the art, any obvious changes such as equivalent transformations, simple replacements, etc. based on the technical solution of the present invention, without departing from the spirit and scope of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A hearing aid earphone, comprising a rear cavity shell, wherein the front end surface of the rear cavity shell is fixed to the front cavity shell, a speaker is installed in a cavity formed by the rear cavity shell and the front cavity shell being buckled together, and a buckle cover is installed on the rear end surface of the rear cavity shell, characterized in that: The rear end surface of the rear cavity shell is provided with a sound leakage groove, and one end of the sound leakage groove is provided with a sound inlet hole, wherein, when the buckle cover is buckled on the rear end surface of the rear cavity shell, the other end of the sound leakage groove as the end of the groove is opposite to the sound leakage hole on the buckle cover, and the sound inlet hole, the sound leakage groove and the sound leakage hole constitute a sound leakage channel for releasing low-frequency sounds and retaining high-frequency sounds to prevent howling.

2. The hearing aid earphone according to claim 1, wherein: The sound leakage groove is in the shape of an arc with an arc of 270 degrees and is arranged along the circumferential direction of the rear end surface of the rear cavity shell.

3. The hearing aid earphone according to claim 2, wherein: A magnet assembly groove is further provided on the rear end surface of the rear cavity shell, and a sheet magnet is arranged in the magnet assembly groove.

4. The hearing aid earphone according to claim 3, wherein: A tuning net is installed on the rear end surface of the front cavity shell, and a speaker net is installed on the front end surface of the front cavity shell.

5. The hearing aid earphone according to claim 4, wherein: An earplug is also provided on the front end surface of the front cavity shell.

6. The hearing aid earphone according to claim 1, wherein: The rear cavity shell is connected to an ear handle, and the cable led out of the speaker is sent out from the ear handle.

7. A binaural adjustable hearing aid, characterized in that: It comprises a U-shaped neck ring, with an end shell installed at both ends of the neck ring, each end shell is provided with a volume increase key and a volume decrease key, one of the end shells is provided with a DIP switch and a multi-function button, a processor is provided in the neck ring or the end shell, the processor is electrically connected to the volume increase key, the volume decrease key, the DIP switch and the multi-function button, wherein each end of the neck ring is equipped with a hearing aid earphone according to claim 1, each hearing aid earphone is equipped with a microphone, and each hearing aid earphone and the corresponding microphone are electrically connected to the processor via the same headphone cable.

8. The binaural adjustable hearing aid according to claim 7, wherein: The processor is also electrically connected to a microphone for communication via a Bluetooth module.

9. The binaural adjustable hearing aid according to claim 8, wherein: The processor is also electrically connected to a wireless receiver; the binaural adjustable hearing aid is also equipped with a remote microphone device, wherein the remote microphone device includes a wireless transmitter with signal processing capability, the wireless transmitter is electrically connected to the remote microphone and the audio interface, and the wireless transmitter is used to communicate wirelessly with the wireless receiver.

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