Ear clip type hearing aid and charging box

Abstract

The invention discloses an ear clip type hearing aid and a charging box, the ear clip type hearing aid comprises a clamping unit part, an in-ear unit part and a bridge part, and the bridge part is connected between the clamping unit part and the in-ear unit part; the in-ear unit part comprises a hard inner shell, a silica gel outer shell and a loudspeaker, the loudspeaker is installed in the hard inner shell, a loudspeaker sound outlet hole is formed in the front end of the hard inner shell, and the sound outlet direction of the loudspeaker faces the loudspeaker sound outlet hole; the silica gel outer shell is detachably sleeved outside the hard inner shell, the front end of the silica gel outer shell is provided with a first through hole corresponding to a loudspeaker sound outlet hole, and a clearance space is arranged between the silica gel outer shell and the hard inner shell, so that the silica gel outer shell forms a silica gel air bag outside the hard inner shell. The ear clip type hearing aid is comfortable to wear and can be suitable for users with different ear shapes to wear.

Description

Technical Field

[0001] This invention relates to the field of hearing aid technology, and in particular to an ear clip-on hearing aid and its charging case. Background Technology

[0002] Hearing aids are hearing-assistive devices, essentially small amplifiers that amplify sounds that were previously inaudible. Utilizing the residual hearing of the hearing-impaired individual, they deliver sound to the auditory center of the brain, allowing the person to perceive the sound. This brings great convenience to the hearing-impaired. Based on their usage, hearing aids are classified into box-type, eyeglass-type, hair clip-on, behind-the-ear, in-the-ear, in-the-canal, and fully-in-the-canal hearing aids. In-the-ear hearing aids further include clip-on hearing aids. Currently, clip-on hearing aids are held in place on the ear, using a microphone on the clip to pick up sound and transmitting it to the ear through a speaker.

[0003] However, existing ear clip hearing aids have the following drawbacks: (1) The ear clip body of existing ear clip hearing aids is relatively hard and has little elasticity. When worn on the ear for a long time, users will feel pain and discomfort. In particular, the ear shape of different users is very different, and the shape of the ear clip body is difficult to match the shape of different users' ears. (2) Existing ear clip hearing aids usually use an open ear clip body. The ear clip body cannot be inserted into the concha of the ear, and the speaker outlet cannot be directly inserted into the external ear canal. This will reduce the sound pickup effect of the ear and greatly reduce the hearing aid effect. (3) The microphone of existing ear clip hearing aids is not treated with noise reduction, and it is easy to have feedback problems due to noise. (4) Existing ear clip hearing aids set parameters through external smart devices, and cannot set the gain compensation value of open ear clip hearing aids through the charging box, nor can the battery level be displayed through the charging box. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a clip-on hearing aid that is comfortable to wear and suitable for users with different ear shapes. The present invention also provides a charging case that can adjust and display the gain compensation value of the clip-on hearing aid and display the battery level.

[0005] To solve the first technical problem mentioned above, the technical solution of the present invention is: an ear clip hearing aid, comprising a clamping unit, an in-ear unit, and a bridge, wherein the bridge connects the clamping unit and the in-ear unit; the in-ear unit comprises a rigid inner shell, a silicone outer shell, and a speaker, wherein the speaker is installed inside the rigid inner shell, and the front end of the rigid inner shell is provided with a speaker sound outlet, the sound outlet direction of the speaker facing the speaker sound outlet; the silicone outer shell is detachably fitted outside the rigid inner shell, and the front end of the silicone outer shell is provided with a first through hole corresponding to the speaker sound outlet, and there is a gap space between the silicone outer shell and the rigid inner shell, so that the silicone outer shell forms a silicone airbag outside the rigid inner shell.

[0006] The beneficial effects of the technical solution of this invention are as follows: Since the in-ear unit includes a rigid inner shell and a silicone outer shell, with the silicone outer shell detachably fitted outside the rigid inner shell and a gap between them, the silicone outer shell forms a silicone airbag outside the rigid inner shell. Therefore, this invention, on the one hand, utilizes the softness of the silicone airbag itself to improve user comfort; on the other hand, it utilizes the silicone airbag to allow different positions of the silicone outer shell to be compressed and deformed inwards or protruded outwards, significantly improving the compressive elasticity of the silicone outer shell and adapting to users with different ear shapes after deformation; furthermore, the silicone outer shell adopts a detachable structure, allowing a new silicone outer shell to be directly replaced outside the rigid inner shell when the old one is damaged. Because the speaker is installed inside a rigid inner shell, and the front end of the rigid inner shell is provided with a speaker sound outlet, with the speaker's sound output direction facing the speaker sound outlet, and the front end of the silicone outer shell is provided with a first through hole corresponding to the speaker sound outlet, when the in-ear unit is worn in the ear, the silicone outer shell can fit and contact the ear concha of the ear, and the sound generated by the speaker can be transmitted to the ear canal through the speaker sound outlet and the first through hole.

[0007] In the above technical solution, the shape of the silicone shell is adapted to the concha cavity of the human ear. When wearing the clip-on hearing aid, the speaker outlet and the first through hole can extend into the external auditory canal. Because the shape of the silicone shell is adapted to the concha cavity, the present invention allows the silicone shell to be tightly placed within the concha cavity when wearing the clip-on hearing aid, avoiding interference from external noise and allowing the speaker outlet to directly extend into the external auditory canal, thereby significantly improving the sound pickup effect and the hearing aid effect of the clip-on hearing aid.

[0008] In the above technical solution, the rigid inner shell includes a front horn cover and a rear horn cover that overlap each other. The horn is installed inside the overlap of the front and rear horn covers. The horn sound outlet is located at the front end of the front horn cover, and a front cavity mesh is provided inside the sound outlet. This structure allows for convenient installation of the horn within the rigid inner shell and forms a front and rear horn cavity within the rigid inner shell, improving the horn's sound effect.

[0009] In the above technical solution, the rear cavity cover of the speaker has an upwardly protruding boss, and the rear end of the silicone shell has a second through hole. The inner wall of the second through hole is fitted onto the outer edge of the boss, and the inner wall of the first through hole is fitted onto the outer edge of the speaker's sound outlet hole. This structure, on the one hand, allows both the front and rear ends of the silicone shell to be fitted and fixed to the front and rear ends of the rigid inner shell; on the other hand, when disassembling or assembling the silicone shell, the second through hole of the silicone shell allows the silicone shell to be removed forward or fitted backward from the rigid inner shell.

[0010] In the above technical solution, a first mounting hole is provided inside the protrusion of the speaker rear cavity cover, and a first connecting plug is provided at one end of the bridge portion. The lower end of the first connecting plug is inserted into the first mounting hole. This structure enables a stable and reliable connection between the bridge portion and the rigid inner shell of the in-ear unit portion.

[0011] In the above technical solution, the clamping unit includes a clamping shell, a hearing aid battery, a hearing aid circuit board, and a charging pin. The hearing aid battery, the hearing aid circuit board, and the charging pin are respectively installed inside the clamping shell. The hearing aid circuit board is electrically connected to the hearing aid battery and the charging pin. The clamping shell includes a front shell and a rear shell that overlap each other. The outer side of the front shell is used to clamp the ear, and the outer side of the front shell is provided with a silicone layer. The rear shell is provided with a charging hole, and one end of the charging pin extends into the charging hole of the rear shell. The rear shell is provided with a second mounting hole, and the other end of the bridge portion is provided with a second connecting plug. The lower end of the second connecting plug is inserted into the second mounting hole. This invention can improve the clamping softness of the clamping unit through the silicone layer on the outer side of the front shell, thereby improving the wearing comfort of the ear clip hearing aid. The bridge portion and the clamping unit of this invention can achieve a stable and reliable connection through the insertion of the second connecting plug into the second mounting hole.

[0012] In the above technical solution, the bridge portion includes a silicone body, one end of which is connected to the upper end of the first connecting plug, and the other end of which is connected to the upper end of the second connecting plug. A metal wire and an electrical wire are installed inside the silicone body. The front end of the metal wire is connected to the upper end of the first connecting plug, and the rear end of the metal wire is connected to the upper end of the second connecting plug. The front end of the electrical wire passes through the first connecting plug and is electrically connected to the speaker, and the rear end of the electrical wire passes through the second connecting plug and is electrically connected to the hearing aid circuit board. This invention can improve the flexibility of the outer side of the bridge portion through the silicone body and improve the clamping elasticity of the bridge portion through the metal wire.

[0013] In the above technical solution, the clamping unit further includes a microphone and a silicone cavity. The microphone is installed inside the silicone cavity, which has a sound passage hole. The rear housing has a sound inlet hole. The microphone is electrically connected to the hearing aid circuit board. The silicone cavity is installed inside the rear housing, and the position of the sound passage hole in the silicone cavity corresponds to the position of the sound inlet hole in the rear housing. A microphone mesh is installed inside the sound inlet hole, and a sponge is provided at the sound passage hole of the silicone cavity. This invention installs the microphone inside the silicone cavity and fills it with sponge, allowing the microphone to be supported by soft silicone and suspended in mid-air, completely filtering out noise and avoiding feedback problems caused by noise.

[0014] To solve the second technical problem mentioned above, the technical solution of the present invention is: a hearing aid charging case, specifically designed for storing the aforementioned clip-on hearing aid, comprising a charging case cover and a charging case body, wherein a pivot assembly is provided between one end of the charging case cover and one end of the charging case body, and the charging case cover is rotatably connected to the charging case body via the pivot assembly; the charging case body has a receiving cavity for storing and charging the clip-on hearing aid; the charging case body includes a charging case circuit board, a charging case battery, a charging case display screen, and a charging case button, wherein the charging case circuit board is electrically connected to the charging case battery, the charging case display screen, and the charging case button respectively, and the charging case circuit board is wirelessly connected to the hearing aid circuit board via Bluetooth; the charging case button can adjust the gain compensation value of the clip-on hearing aid, and the charging case display screen can display the gain compensation value of the clip-on hearing aid and the power level of the hearing aid battery or the charging case battery.

[0015] The beneficial effects of the technical solution of this invention are: the present invention can accommodate and charge the ear-clip hearing aid through the receiving cavity of the charging case, and the gain compensation value of the ear-clip hearing aid can be adjusted through the buttons on the charging case, and the gain compensation value of the ear-clip hearing aid and the power level of the hearing aid battery or the charging case battery can be displayed on the display screen of the charging case. In the above technical solution, the charging case cover includes an outer charging case cover and an inner charging case cover fitted inside the outer charging case cover. The charging case body includes a charging case outer shell and an inner charging case holder fitted inside the outer charging case shell. The inner charging case holder has two receiving cavities. The ear clip-on hearing aid includes a left ear clip-on hearing aid and a right ear clip-on hearing aid, which are respectively housed in their corresponding receiving cavities. The charging case display screen and charging case buttons are mounted on the front end of the charging case body. The charging case buttons include a left button and a right button. The left button is used to adjust the gain compensation value of the left ear clip-on hearing aid, and the right button is used to adjust the gain compensation value of the right ear clip-on hearing aid. The left and right ear clip-on hearing aids of this invention can have their gain compensation values ​​adjusted independently using the left and right buttons, allowing for adjustments to different gain compensation values ​​according to the different sound reception needs of the user's two ears. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the ear clip-on hearing aid of the present invention.

[0017] Figure 2 This is one of the distributed structural diagrams of the ear clip-on hearing aid of the present invention.

[0018] Figure 3 This is the second schematic diagram of the distributed structure of the ear clip-on hearing aid of the present invention.

[0019] Figure 4 This is an overall structural diagram of the hearing aid charging box of the present invention.

[0020] Figure 5 This is one of the distributed structural diagrams of the hearing aid charging case of the present invention.

[0021] Figure 6 This is the second schematic diagram of the distributed structure of the hearing aid charging box of the present invention. Detailed Implementation

[0022] The structural and working principles of the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the invention. Example 1

[0024] like Figures 1-3As shown, Embodiment 1 provides an ear clip hearing aid, including a clamping unit 1, an in-ear unit 2, and a bridge 3. The bridge 3 connects the clamping unit 1 and the in-ear unit 2. The in-ear unit 2 includes a rigid inner shell 21, a silicone outer shell 22, and a speaker 23. The rigid inner shell 21 is preferably a plastic inner shell. The speaker 23 is installed inside the rigid inner shell 21. The front end of the rigid inner shell 21 is provided with a speaker sound outlet 211, and the sound output direction of the speaker 23 faces the speaker sound outlet 211. The silicone outer shell 22 is detachably fitted outside the rigid inner shell 21. The front end of the silicone outer shell 22 is provided with a first through hole 221 corresponding to the speaker sound outlet 211. There is a gap space (not shown in the figure) between the silicone outer shell 22 and the rigid inner shell 21, so that the silicone outer shell 22 forms a silicone airbag outside the rigid inner shell 21.

[0025] The present invention includes an in-ear unit 2 comprising a rigid inner shell 21 and a silicone outer shell 22. The silicone outer shell 22 is detachably fitted outside the rigid inner shell 21, and there is a gap between the silicone outer shell 22 and the rigid inner shell 21, so that the silicone outer shell 22 forms a silicone airbag outside the rigid inner shell 21. Therefore, the present invention can improve the user's wearing comfort by utilizing the softness of the silicone airbag itself. On the other hand, the silicone airbag can be used to compress and deform inward or bulge outward at different positions of the silicone outer shell 22, which can significantly improve the pressing elasticity of the silicone outer shell 22 and adapt to users with different ear shapes after deformation. Furthermore, the silicone outer shell 22 adopts a detachable structure, so when the old silicone outer shell 22 is damaged, a new silicone outer shell 22 can be directly replaced outside the rigid inner shell 21. Since the speaker 23 is installed inside the rigid inner shell 21, and the front end of the rigid inner shell 21 is provided with a speaker sound outlet 211, and the sound output direction of the speaker 23 is facing the speaker sound outlet 211, and the front end of the silicone outer shell 22 is provided with a first through hole 221 corresponding to the speaker sound outlet 211, when the in-ear unit 2 is worn in the ear, the silicone outer shell 22 can fit and contact the concha cavity of the ear, and the sound generated by the speaker 23 can be transmitted to the ear canal through the speaker sound outlet 211 and the first through hole 221.

[0026] like Figures 1-3 As shown, the shape of the silicone shell 22 is adapted to the concha cavity of the human ear. When wearing the clip-on hearing aid, the speaker outlet 211 and the first through hole 221 can extend into the external auditory canal. Because the shape of the silicone shell 22 is adapted to the concha cavity, when wearing the clip-on hearing aid, the silicone shell 22 can be tightly placed within the concha cavity, avoiding external noise interference, and allowing the speaker outlet 23 to directly extend into the external auditory canal, thereby significantly improving the sound pickup effect and the hearing aid effect of the clip-on hearing aid.

[0027] like Figure 2 and Figure 3 As shown, the rigid inner shell 21 includes a front horn cover 212 and a rear horn cover 213 that overlap each other. The horn 23 is installed inside the overlap between the front horn cover 212 and the rear horn cover 213. The horn sound outlet 211 is located at the front end of the front horn cover 212, and a front cavity mesh 214 is provided inside the horn sound outlet 211. This structure allows the horn 23 to be easily installed inside the rigid inner shell 21, and forms a front horn cavity and a rear horn cavity inside the rigid inner shell 21, improving the sound effect of the horn 23.

[0028] like Figure 2 and Figure 3 As shown, the rear cavity cover 213 of the speaker has an upwardly protruding boss 215, and the rear end of the silicone shell 22 has a second through hole 222. The inner wall of the second through hole 222 is fitted onto the outer edge of the boss 215, and the inner wall of the first through hole 221 is fitted onto the outer edge of the speaker sound outlet 211. This structure, on the one hand, allows both the front and rear ends of the silicone shell 22 to be fitted and fixed to both the front and rear ends of the rigid inner shell 21. On the other hand, when disassembling and assembling the silicone shell 22, the second through hole 222 of the silicone shell 22 can be used to remove the silicone shell 22 from the rigid inner shell 21 forward or to fit it backward.

[0029] like Figure 2 and Figure 3 As shown, a first mounting hole 216 is provided inside the protrusion 215 of the speaker rear cavity cover 213, and a first connecting plug 31 is provided at one end of the bridge portion 3. The lower end of the first connecting plug 31 is inserted into the first mounting hole 216. This structure enables a stable and reliable connection between the bridge portion 3 and the rigid inner shell 21 of the in-ear unit portion 2.

[0030] like Figure 2 and Figure 3As shown, the clamping unit 1 includes a clamping housing 11, a hearing aid battery 12, a hearing aid circuit board 13, and a charging pin 14. The hearing aid battery 12, the hearing aid circuit board 13, and the charging pin 14 are respectively installed inside the clamping housing 11. The hearing aid circuit board 13 is electrically connected to the hearing aid battery 12 and the charging pin 14. The clamping housing 11 includes a front housing 111 and a rear housing 112 that cover each other. The outer surface of the front housing 111 is used to clamp the human ear, and a silicone layer 113 is provided on the outer surface of the front housing 111. The rear housing 112 is provided with a charging hole 1121, and one end of the charging pin 14 extends into the charging hole 1121 of the rear housing 112. The rear housing 112 is provided with a second mounting hole 1122, and the other end of the bridge portion 3 is provided with a second connecting plug 32. The lower end of the second connecting plug 32 is inserted into the second mounting hole 1122. The present invention can improve the clamping softness of the clamping unit part 1 by the silicone layer 113 on the outer side of the front housing 111, thereby improving the wearing comfort of the ear clip hearing aid; the bridge part 3 and the clamping unit part 1 of the present invention can achieve a stable and reliable connection through the insertion of the second connecting plug 32 and the second mounting hole 1122.

[0031] like Figure 2 and Figure 3 As shown, the bridge portion 3 includes a silicone body 33. One end of the silicone body 33 is connected to the upper end of the first connecting plug 31, and the other end of the silicone body 33 is connected to the upper end of the second connecting plug 32. A metal wire 34 and an electrical wire 35 are installed inside the silicone body 33. The front end of the metal wire 34 is connected to the upper end of the first connecting plug 31, and the rear end of the metal wire 34 is connected to the upper end of the second connecting plug 32. The front end of the electrical wire 35 passes through the first connecting plug 31 and is electrically connected to the speaker 23, and the rear end of the electrical wire 35 passes through the second connecting plug 32 and is electrically connected to the hearing aid circuit board 13. This invention can improve the flexibility of the outer side of the bridge portion 3 through the silicone body 33 and improve the clamping elasticity of the bridge portion 3 through the metal wire 34.

[0032] like Figure 2 and Figure 3As shown, the clamping unit 1 further includes a microphone 15 and a silicone cavity 16. The microphone 15 is installed inside the silicone cavity 16, which has a sound passage hole 161. The rear housing 112 has a sound inlet hole 1123. The microphone 15 is electrically connected to the hearing aid circuit board 13. The silicone cavity 16 is installed inside the rear housing 112, and the position of the sound passage hole 161 in the silicone cavity 16 corresponds to the position of the sound inlet hole 1123 in the rear housing 112. A microphone mesh 17 is installed inside the sound inlet hole 1123, and a sponge (not shown in the figure) is provided at the sound passage hole 161 of the silicone cavity 16. This invention installs the microphone 15 inside the silicone cavity 16 and fills it with sponge, wrapping the microphone 15. This allows the microphone 15 to be supported by soft silicone and suspended in the air, completely filtering out noise and avoiding feedback problems caused by noise. Example 2

[0033] like Figures 4-6 As shown, in conjunction with reference Figures 1-3 Embodiment 2 provides a hearing aid charging case specifically designed to store the aforementioned clip-on hearing aid. It includes a charging case cover 4 and a charging case body 5. A pivot assembly 6 is provided between one end of the charging case cover 4 and one end of the charging case body 5, allowing the charging case cover 4 to be rotatably connected to the charging case body 5 via the pivot assembly 6. The charging case body 5 has a receiving cavity 51 for storing and charging the clip-on hearing aid. The charging case body 5 includes a charging case circuit board 52, a charging case battery 53, and a charging... The charging case includes a display screen 54 and a charging case button 55. The charging case circuit board 52 is electrically connected to the charging case battery 53, the charging case display screen 54, and the charging case button 55. A keycap 56 matching the charging case button 55 is provided on the front side of the charging case body 5. The charging case circuit board 52 is wirelessly connected to the hearing aid circuit board 13 via Bluetooth. The charging case button 55 can adjust the gain compensation value of the ear-clip hearing aid, and the charging case display screen 54 can display the gain compensation value of the ear-clip hearing aid and the power level of the hearing aid battery 12 or the charging case battery 53. This invention allows the ear-clip hearing aid to be stored and charged through the receiving cavity 51 of the charging case body 5. The gain compensation value of the ear-clip hearing aid can be adjusted via the charging case button 55, and the gain compensation value and the power level of the hearing aid battery 12 or the charging case battery 53 can be displayed via the charging case display screen 54. Hearing aid gain compensation refers to the hearing aid amplifying different frequencies of sound to different degrees according to the user's hearing loss. Each person's hearing loss pattern may be different. Some people experience a greater decline in their ability to perceive low-frequency sounds, while others are less sensitive to high-frequency sounds. Gain compensation involves adjusting the parameters of the hearing aid so that the amplified sound better matches the user's actual hearing needs, thereby improving the auditory experience.

[0034] like Figures 4-6 As shown, the charging case cover 4 includes an outer charging case cover 41 and an inner charging case cover 42 that is fitted inside the outer charging case cover 41. The charging case body 5 includes an outer charging case shell 57 and an inner charging case tray 58 that is fitted inside the outer charging case shell 57. The inner charging case tray 58 has two receiving cavities 51. The ear clip hearing aid includes a left ear clip hearing aid and a right ear clip hearing aid, which are respectively housed in their corresponding receiving cavities 51. The charging case display screen... The charging case button 54 and charging case button 55 are installed at the front of the charging case body 5. The front side of the charging case shell 57 is made of transparent or semi-transparent material. The charging case display screen 54 is flush against the inner front wall of the charging case shell 57, allowing the user to see the content displayed on the charging case display screen 54 through the charging case shell 57. The charging case button 55 includes a left button 551 and a right button 552. The left button 551 is used to adjust the gain compensation value of the left ear clip-on hearing aid, and the right button 552 is used to adjust the gain compensation value of the right ear clip-on hearing aid. The left ear clip-on hearing aid and the right ear clip-on hearing aid of this invention can have their gain compensation values ​​adjusted independently using the left button 551 and the right button 552, allowing for different gain compensation values ​​to be adjusted according to the different sound reception needs of the user's two ears.

[0035] The above description is merely a preferred embodiment of the present invention. Any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical solution of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. An ear clip-on hearing aid, characterized in that: The device includes a clamping unit, an in-ear unit, and a bridge unit, with the bridge unit connecting the clamping unit and the in-ear unit. The in-ear unit includes a rigid inner shell, a silicone outer shell, and a speaker. The speaker is installed inside the rigid inner shell, and the front end of the rigid inner shell has a speaker sound outlet, with the speaker's sound output direction facing the speaker sound outlet. The silicone outer shell is detachably fitted outside the rigid inner shell, and the front end of the silicone outer shell has a first through hole corresponding to the speaker sound outlet. There is a gap space between the silicone outer shell and the rigid inner shell, allowing the silicone outer shell to form a silicone airbag outside the rigid inner shell.

2. The clip-on hearing aid according to claim 1, characterized in that: The shape of the silicone shell is adapted to the concha cavity of the human ear, and when wearing the clip-on hearing aid, the speaker outlet and the first through hole can be inserted into the external auditory canal of the human ear.

3. The clip-on hearing aid according to claim 1, characterized in that: The rigid inner shell includes a front horn cover and a rear horn cover that overlap each other. The horn is installed inside the overlap of the front horn cover and the rear horn cover. The horn sound hole is located at the front end of the front horn cover. A front cavity mesh is provided inside the horn sound hole.

4. The ear clip-on hearing aid according to claim 3, characterized in that: The rear cavity cover of the speaker has an upwardly protruding boss, and the rear end of the silicone shell has a second through hole. The inner wall of the second through hole is fitted onto the outer edge of the boss, and the inner wall of the first through hole is fitted onto the outer edge of the speaker's sound outlet hole.

5. The ear clip-on hearing aid according to claim 4, characterized in that: The rear cavity cover of the speaker has a first mounting hole inside the protrusion, and one end of the bridge has a first connecting plug, the lower end of the first connecting plug being inserted into the first mounting hole.

6. The ear clip-on hearing aid according to claim 5, characterized in that: The clamping unit includes a clamping housing, a hearing aid battery, a hearing aid circuit board, and a charging pin. The hearing aid battery, the hearing aid circuit board, and the charging pin are respectively installed inside the clamping housing. The hearing aid circuit board is electrically connected to the hearing aid battery and the charging pin. The clamping housing includes a front housing and a rear housing that overlap each other. The outer side of the front housing is used to clamp the human ear, and the outer side of the front housing is provided with a silicone layer. The rear housing is provided with a charging hole, and one end of the charging pin extends into the charging hole of the rear housing. The rear housing is provided with a second mounting hole, and the other end of the bridge is provided with a second connecting plug. The lower end of the second connecting plug is inserted into the second mounting hole.

7. The ear clip-on hearing aid according to claim 6, characterized in that: The bridge portion includes a silicone body, one end of which is connected to the upper end of the first connector plug, and the other end of which is connected to the upper end of the second connector plug. A metal wire and an electrical wire are installed inside the silicone body. The front end of the metal wire is connected to the upper end of the first connector plug, and the rear end of the metal wire is connected to the upper end of the second connector plug. The front end of the electrical wire passes through the first connector plug and is electrically connected to the speaker, and the rear end of the electrical wire passes through the second connector plug and is electrically connected to the hearing aid circuit board.

8. The clip-on hearing aid according to claim 6, characterized in that: The clamping unit also includes a microphone and a silicone cavity. The microphone is installed inside the silicone cavity, which has a sound passage hole. The rear housing has a sound inlet hole. The microphone is electrically connected to the hearing aid circuit board. The silicone cavity is installed inside the rear housing. The position of the sound passage hole in the silicone cavity corresponds to the position of the sound inlet hole in the rear housing. A microphone mesh is installed inside the sound inlet hole, and a sponge is provided at the sound passage hole of the silicone cavity.

9. A hearing aid charging case, specifically for storing the clip-on hearing aid as described in any one of claims 1-8, characterized in that: The device includes a charging case cover and a charging case body. A pivot assembly is provided between one end of the charging case cover and one end of the charging case body, allowing the charging case cover to be rotatably connected to the charging case body via the pivot assembly. The charging case body has a receiving cavity for storing and charging an ear-clip hearing aid. The charging case body includes a charging case circuit board, a charging case battery, a charging case display screen, and a charging case button. The charging case circuit board is electrically connected to the charging case battery, the charging case display screen, and the charging case button, and is wirelessly connected to the hearing aid circuit board via Bluetooth. The charging case button can adjust the gain compensation value of the ear-clip hearing aid, and the charging case display screen can display the gain compensation value of the ear-clip hearing aid and the power level of the hearing aid battery or the charging case battery.

10. The hearing aid charging case according to claim 9, characterized in that: The charging case cover includes an outer charging case cover and an inner charging case cover that is fitted inside the outer charging case cover. The charging case body includes a charging case shell and an inner charging case holder that is fitted inside the charging case shell. The inner charging case holder has two receiving cavities. The ear clip hearing aid includes a left ear clip hearing aid and a right ear clip hearing aid, which are respectively housed in their corresponding receiving cavities. The charging case display screen and charging case buttons are installed at the front of the charging case body. The charging case buttons include a left button and a right button. The left button is used to adjust the gain compensation value of the left ear clip hearing aid, and the right button is used to adjust the gain compensation value of the right ear clip hearing aid.

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