Noise reducing hearing aid with sound guide tube

Abstract

The utility model provides a kind of noise reduction hearing aid with sound guide pipe, it is related to medical instrument technical field, the device includes shell, circuit board, sound tube, sound guide pipe, reverse silicon microphone, since sound hole is directly arranged on circuit board, can make reverse silicon microphone directly welded on circuit board, improve the efficiency of production and the stability of product, greatly improve production efficiency, reduce people's labor time, and in order to facilitate the transmission of sound, sound tube is designed between sound hole and sound hole, specifically, first through-hole is provided on sound tube, one end of first through-hole is directly connected with sound hole, and the other end is directly connected with sound hole, since sound tube is closely attached to sound hole and sound hole, compared with the card slot design of previous separate wire link, the operation sound in the cavity of silicon microphone to shell is avoided, the bottom noise of hearing aid machine itself is reduced, and the transmission effect of sound is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a noise-reducing hearing aid with a sound guide tube. Background Technology

[0002] In existing technology, the microphone hole is generally set on the silicon microphone. The microphone hole receives the sound transmitted from the sound hole on the housing. At the same time, the sound diffuses inside the housing. The microphone hole receives the sound inside the housing. In addition, the sound reverberates in the housing, which causes the microphone hole to not be able to pick up the sound completely. In addition, the silicon microphone is generally mounted on the circuit board by wire connection. The silicon microphone is fixed and secure, which also increases the difficulty and time of workers to process it. Utility Model Content

[0003] The purpose of this invention is to provide a noise-canceling hearing aid with a sound guide tube, thereby solving the technical problems of poor sound reception and unstable silicon microphone fixation in existing technologies. The preferred technical solutions among the various technical solutions provided by this invention and their numerous technical effects are detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides a noise-canceling hearing aid with a sound guide tube, comprising a housing, a circuit board, a sound tube, a sound guide tube, and a reverse microphone. The sound guide tube is mounted on the housing, and a circuit board is disposed inside the housing. The circuit board has a sound receiving hole, and the sound tube is mounted on the circuit board. The sound tube has an L-shaped first through hole, the first end of which is aligned with the sound receiving hole, and the second end of which is connected to a sound hole on the housing. A reverse microphone is mounted on the other side of the sound receiving hole and is directly soldered to the circuit board. The reverse microphone is electrically connected to the sound guide tube to transmit sound to the earpiece, wherein the sound guide tube is connected to the housing.

[0006] Preferably, the sound transmission tube is further provided with a second through hole, which is connected to the first through hole. The first through hole and the second through hole form a T-shape. The second through hole extends downward to the end of the sound transmission tube so that dust or water stains can flow downward.

[0007] Preferably, the diameter of the second through hole is smaller than the diameter of the first through hole.

[0008] Preferably, a heating element is provided between the end of the sound tube that connects to the circuit board and the circuit board, and the heating element is electrically connected to the charging port on the circuit board so that the heating element is heated when the charging port is charging, wherein the charging port extends out of the housing.

[0009] Preferably, a battery pack is also provided inside the housing, and the battery pack is electrically connected to the circuit board.

[0010] Preferably, the circuit board is provided with a first mounting hole, and the sound tube is provided with a connecting post, which is installed in the first mounting hole.

[0011] Preferably, the end of the connecting column is provided with an anti-detachment protrusion.

[0012] Preferably, the circuit board is further provided with a positioning hole, and the sound tube is provided with a positioning post, which is installed in the positioning hole.

[0013] Preferably, the material of the sound tube is silicone.

[0014] The technical solution provided in this application document has the following beneficial effects: This utility model provides a noise-canceling hearing aid with a sound guide tube, including a housing, a circuit board, a sound tube, a sound guide tube, and a reverse silicon microphone. The sound guide tube is mounted on the housing, and an earplug is provided at the end of the sound guide tube away from the housing for placement in the user's ear. The circuit board is located inside the housing, and the circuit board has a sound receiving hole. For convenient sound reception, a sound tube is provided inside the housing and mounted on the circuit board. The sound tube has an L-shaped first through hole, the first end of which is aligned with the sound receiving hole, and the second end of which is connected to the sound hole on the housing. Thus, external sound is transmitted to the location of the sound receiving hole through the sound hole and the first through hole. A reverse silicon microphone is mounted on the other side of the sound receiving hole and is directly soldered to the circuit board. The reverse silicon microphone is electrically connected to the sound guide tube to transmit sound to the earplug.

[0015] This design, with the microphone hole directly mounted on the circuit board, allows for direct soldering of the reverse silicon microphone onto the board, improving production efficiency and product stability. It significantly increases production capacity and reduces labor time. Furthermore, to facilitate sound transmission, a sound transmission tube is designed between the microphone hole and the sound hole. Specifically, the sound transmission tube has a first through-hole, with one end directly connected to the sound hole and the other end directly connected to the microphone hole. Because the sound transmission tube fits tightly against the microphone hole and the sound hole, compared to the previous separate wire connection slot design, it prevents the microphone from picking up the operating sounds inside the housing, reducing the background noise of the hearing aid and ensuring effective sound transmission. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the external structure of a noise-reducing hearing aid with a sound guide tube provided in Embodiment 1 of this utility model.

[0018] Figure 2 This is a schematic diagram illustrating a circuit board connecting a sound guide tube according to an exemplary embodiment; Figure 3 This is a schematic diagram illustrating the structure of a microphone tube connected to a circuit board according to an exemplary embodiment; Figure 4 This is a schematic diagram illustrating the structure of a silicon microphone connected to a circuit board according to an exemplary embodiment; Figure 5 This is a front view of a sound tube according to an exemplary embodiment; Figure 6 This is a rear view of a sound tube according to an exemplary embodiment; Figure 7 This is a schematic diagram illustrating the structure of a heating element according to an exemplary embodiment; Figure 8 This is a cross-sectional view showing the location of the microphone tube, heating element, and reverse silicon microphone mounted on a circuit board according to an exemplary embodiment.

[0019] In the diagram: 1. Housing; 2. Circuit board; 21. Microphone hole; 22. First mounting hole; 23. Positioning hole; 3. Transmission tube; 31. First through hole; 32. Second through hole; 33. Connecting post; 331. Anti-detachment protrusion; 34. Positioning post; 4. Sound guide tube; 5. Reverse silicon microphone; 6. Heating element; 7. Battery pack. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] This specific embodiment provides a noise-canceling hearing aid with a sound guide tube to solve the technical problems of poor sound reception of the sound hole and unstable fixation of the silicon microphone in the prior art.

[0022] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model as described in the claims. Additionally, the complete contents of the structures represented in the following embodiments are not limited to those necessary for the solution of the utility model as described in the claims.

[0023] Reference Figures 1-8 This utility model provides a noise-canceling hearing aid with a sound guide tube, including a housing 1, a circuit board 2, a sound transmission tube 3, a sound guide tube 4, and a reverse silicon microphone 5. The sound guide tube 4 is mounted on the housing 1, and an earplug is provided at the end of the sound guide tube 4 away from the housing 1 for placement in the user's ear. The circuit board 2 is provided inside the housing 1, and a sound receiving hole 21 is provided on the circuit board 2. In order to facilitate sound reception, a sound transmission tube 3 is provided inside the housing 1 and is mounted on the circuit board 2. The sound transmission tube 3 is provided with an L-shaped first through hole 31. The first end of the first through hole 31 is aligned with the sound receiving hole 21, and the second end is connected to the sound hole on the housing 1. Thus, the external sound is transmitted to the position of the sound receiving hole 21 through the sound hole and the first through hole 31. The reverse silicon microphone 5 is installed on the other side of the sound receiving hole 21 and is directly soldered to the circuit board 2. The reverse silicon microphone 5 is electrically connected to the sound guide tube 4 to transmit the sound to the earplug.

[0024] With this configuration, since the microphone hole 21 is directly located on the circuit board 2, the reverse silicon microphone 5 can be directly soldered onto the circuit board 2, improving production efficiency and product stability, greatly increasing production efficiency, and reducing labor time. At the same time, in order to facilitate sound transmission, a sound transmission tube 3 is designed between the microphone hole 21 and the sound hole. Specifically, the sound transmission tube 3 is provided with a first through hole 31. One end of the first through hole 31 is directly connected to the sound hole, and the other end is directly connected to the microphone hole 21. Since the sound transmission tube fits tightly against the microphone hole and the sound hole, compared with the previous slot design with separate wire connection, it avoids the silicon microphone from picking up the operating sound inside the cavity of the housing 1, reduces the background noise of the hearing aid itself, and ensures the sound transmission effect.

[0025] In addition, the casing 1 is equipped with adjustment buttons and a power button for user convenience.

[0026] To further optimize the design, a second through-hole 32 is provided on the sound tube 3 to allow water entering the tube to drain out. This second through-hole 32 connects to the first through-hole 31, forming a T-shape. Since the second end of the first through-hole 31 is positioned upwards, sound travels downwards and then laterally to the receiving hole 21. The second through-hole 32 is positioned opposite the second end of the first through-hole 31, vertically downwards. Water or dust entering the first through-hole 31 can then flow downwards along the second through-hole 32 under gravity. The second through-hole 32 extends downwards to the end of the sound tube 3, allowing the water or dust to flow downwards and drain out, preventing it from entering the receiving hole 21 and achieving a waterproof and dustproof effect. Furthermore, when the second through-hole 32 becomes blocked, cleaning the dust with a sharp object will not damage the reverse microphone.

[0027] Specifically, the diameter of the second through hole 32 is smaller than the diameter of the first through hole 31, reducing sound diffusion so that more than 90% of the sound is transmitted to the position of the sound receiving hole 21.

[0028] To further optimize the solution, a heating element 6 is installed between the end of the sound tube 3 that connects to the circuit board and the circuit board 2. The heating element 6 is electrically connected to the charging port on the circuit board 2. When the charging port is charging, the heating element 6 is heated. The charging port extends out of the housing 1. Specifically, the heating element is a PET heating element with a thickness of 0.2mm. The positive and negative electrodes on the heating element are located on the other side of the circuit board 2 for easy wiring connection. This changes the traditional hearing aid drying process, which requires a separate drying box, which is expensive and inconvenient to carry.

[0029] To further optimize the design and facilitate use, a battery pack 7 is also installed inside the housing 1, and the battery pack 7 is electrically connected to the circuit board 2.

[0030] To further optimize the design and facilitate the installation of the sound tube 3, the circuit board 2 is provided with a first mounting hole 22, and the sound tube 3 is provided with a connecting post 33. The connecting post 33 is installed in the first mounting hole 22. The first mounting hole is designed as an elongated hole, which facilitates the determination of the direction of the sound tube 3.

[0031] To further optimize the design, in order to prevent the connecting post 33 from detaching from the first mounting hole 22, an annular anti-detachment protrusion 331 is provided on the circumferential surface of the end of the connecting post 33. The end face of the anti-detachment protrusion 331 forms a step with the circumferential surface of the connecting post 33, and the step is directly stuck on the other side of the circuit board 2.

[0032] To further optimize the design, in order to facilitate the installation of the sound tube 3, the circuit board 2 is also provided with a positioning hole 23, and the sound tube 3 is provided with a positioning post 34. The positioning post 34 is installed in the positioning hole 23. When installing, people first use the positioning post 34 to position the tube, so as to facilitate the locking of the connecting post 33.

[0033] Further optimization of the design: the material of the sound tube 3 is silicone. Silicone is malleable and has a good sound insulation effect, which can reduce the chance of sound spreading outwards and prevent external sound from interfering with the sound tube, thus ensuring the sound transmission effect.

[0034] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., used herein to indicate the orientation or positional relationship shown in the accompanying drawings, are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In this description, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0037] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the content not described in detail in some embodiments can be referred to the same or similar content in other embodiments. The multiple solutions provided in this application contain their own basic solutions, are independent of each other, and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects.

[0038] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A noise-canceling hearing aid with a sound guide tube, characterized in that, The device includes a housing (1), a circuit board (2), a sound tube (3), a sound guide tube (4), and a reverse microphone (5). The sound guide tube (4) is mounted on the housing (1). The circuit board (2) is located inside the housing (1). The circuit board (2) has a sound receiving hole (21). The sound tube (3) is mounted on the circuit board (2). The sound tube (3) has an L-shaped first through hole (31). The first end of the first through hole (31) is aligned with the sound receiving hole (21), and the second end is connected to the sound hole on the housing (1). The reverse microphone (5) is mounted on the other side of the sound receiving hole (21). The reverse microphone is directly soldered to the circuit board (2). The reverse microphone (5) is electrically connected to the sound guide tube (4) to transmit sound to the earpiece. The sound guide tube (4) is connected to the housing (1).

2. The noise-reducing hearing aid with a sound guide tube according to claim 1, characterized in that, The sound tube (3) is also provided with a second through hole (32), which is connected to the first through hole (31). The first through hole (31) and the second through hole (32) form a T-shape. The second through hole (32) extends downward to the end of the sound tube (3) so that dust or water stains can flow downward.

3. The noise-reducing hearing aid with a sound guide tube according to claim 2, characterized in that, The diameter of the second through hole (32) is smaller than the diameter of the first through hole (31).

4. The noise-reducing hearing aid with a sound guide tube according to claim 1, characterized in that, A heating element (6) is provided between the end of the sound tube (3) that connects to the circuit board (2) and the circuit board (2). The heating element (6) is electrically connected to the charging port on the circuit board (2) so that the heating element (6) is heated when the charging port is charging, wherein the charging port extends out of the housing (1).

5. The noise-reducing hearing aid with a sound guide tube according to claim 1, characterized in that, The housing (1) is also equipped with a battery pack (7), which is electrically connected to the circuit board (2).

6. The noise-reducing hearing aid with a sound guide tube according to claim 1, characterized in that, The circuit board (2) is provided with a first mounting hole (22), and the sound tube (3) is provided with a connecting post (33), which is installed in the first mounting hole (22).

7. The noise-reducing hearing aid with a sound guide tube according to claim 6, characterized in that, The end of the connecting column (33) is provided with an anti-detachment protrusion (331).

8. The noise-canceling hearing aid with a sound guide tube according to claim 1, characterized in that, The circuit board (2) is also provided with a positioning hole (23), and the sound tube (3) is provided with a positioning post (34), which is installed in the positioning hole (23).

9. The noise-reducing hearing aid with a sound guide tube according to claim 1, characterized in that, The material of the sound tube (3) is silicone.

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