A dual-microphone self-balancing hearing aid

Abstract

The present invention provides a dual-microphone self-balancing hearing aid, comprising a shell and a dual-microphone self-balancing component, wherein the dual-microphone self-balancing component is pivotally arranged in the shell, and the dual-microphone self-balancing component comprises a microphone, a pivot shaft and a balance member, wherein two microphones are provided, and the two microphones are respectively located at opposite ends of the balance member, and the balance member is pivotally arranged in the shell through the pivot shaft, and the two microphones are distributed on both sides of the pivot shaft, so that the two microphones and the balance member and the pivot shaft form a structure similar to a balance, and by utilizing the effect of gravity, the two microphones can automatically adjust and maintain a horizontal position, so that the dual microphones are always in a horizontal state under certain constraints, so that the effect of the directional focusing algorithm can reach a more ideal state.

Description

Technical Field

[0001] The present invention relates to the technical field of hearing aids, and in particular to a dual-microphone self-balancing hearing aid. Background Art

[0002] A hearing aid is a tool, device, apparatus, or instrument that helps the hearing-impaired to improve their hearing impairment and enhance their ability to communicate with others. It amplifies relatively weak sounds and transmits them to the patient's ear canal, and then uses the hearing-impaired's residual hearing to send the sounds to the brain's auditory center, so that the sound can be felt, which can bring great convenience to the hearing-impaired.

[0003] Current hearing aids are equipped with dual microphones, which can be combined with algorithms to focus on sounds from a specific direction. When using hearing aids, this function is used to enhance the sound coming from the front and suppress the sound from other directions, so that the wearer can better hear the sound of the conversation in a noisy environment.

[0004] The classic directional focusing algorithm works best when the two microphones are in a horizontal position. However, different wearers have different ear shapes, and the position of hearing aids often varies from person to person. The microphone position taken during design may be significantly tilted from the horizontal position when worn by some users, which leads to poor results of the directional focusing algorithm. At the same time, in daily use, the user's head may be significantly tilted from the horizontal direction due to different sitting postures or positions.

[0005] The tilt angle can be corrected through complex algorithms, but the correction angle is often limited, and it is difficult to achieve the same effect as in the horizontal state. This increases the complexity of the algorithm and has an adverse effect on power consumption and delay.

[0006] Therefore, it is expected that a device or method can be used to allow the dual microphones to be in a horizontal state at all times when the user wears the hearing aid, so that the effect of the directional focusing algorithm can be brought into play to the best state. Summary of the invention

[0007] Therefore, in view of at least one of the above problems, the present invention provides a dual-microphone self-balancing hearing aid.

[0008] The present invention is implemented by the following scheme:

[0009] The present invention proposes a dual-microphone self-balancing hearing aid, which is characterized in that it includes a shell and a dual-microphone self-balancing component, the dual-microphone self-balancing component is pivotally disposed in the shell, the dual-microphone self-balancing component includes a microphone, a pivot axis and a balance member, the two microphones are provided, the two microphones are respectively located at opposite ends of the balance member, the balance member is pivotally disposed in the shell via the pivot axis, and the two microphones are distributed on both sides of the pivot axis.

[0010] In one embodiment, the balancing member is disc-shaped, and a line connecting the two microphones passes through the center of the balancing member.

[0011] In one embodiment, the shell is provided with a microphone sound inlet slot respectively corresponding to the two microphones, and the microphone sound inlet slot is in a long arc shape.

[0012] In one embodiment, the two microphones are mounted on one side of the balancing member facing the microphone sound inlet slot, and a counterweight is mounted on the other side of the balancing member opposite to the two microphones.

[0013] In one embodiment, a dustproof and sound-transmitting net is also included. The dustproof and sound-transmitting net is in a ring shape and is covered on the outer sides of the two microphone sound inlet slots.

[0014] In one embodiment, the housing has an outer end surface, and the balancing member is substantially parallel to the outer end surface.

[0015] In one embodiment, a switch button is further included, and the switch button can switch the dual-microphone self-balancing component between a free state and a locked state.

[0016] In one embodiment, the shell is recessed with a key slot, the switch button includes a key body, a key shaft, a magnet and a magnetic block, the key body is penetrated by the key shaft, both ends of the key shaft are assembled in the side wall holes of the key slot, so that the key body can be pivotally and swingably installed in the key slot; the magnet is embedded in the bottom of the key body, the magnetic block is penetrated on the bottom surface of the key slot, the magnet and the magnetic block are arranged opposite to each other, the magnetic block is arranged above the balance piece, and the balance piece is made of ferromagnetic material.

[0017] In one embodiment, the switch button also includes a spring and a limit pin, a pin groove is provided on the bottom surface of the button body, the limit pin is movably installed in the pin groove, the side wall of the pin groove is provided with a pin hole, the limit pin includes a limit shoulder and a pin head, the pin head passes through the pin hole, the limit shoulder can abut against the side wall of the pin groove, the spring is installed in the pin groove, one end of the spring abuts against the side wall of the pin groove, and the other end abuts against the limit shoulder of the limit pin, thereby pushing the pin head toward the outside of the pin hole, the side wall of the button groove is provided with a limit hole, and the pin head can be snap-fitted with the limit hole.

[0018] In one embodiment, it also includes a dustproof and sound-transmitting mesh, which is in the shape of a circular ring. The shell is provided with a microphone sound inlet slot corresponding to each of the two microphones, and the microphone sound inlet slot is in the shape of a long arc. The dustproof and sound-transmitting mesh cover is arranged on the outer sides of the two microphone sound inlet slots, and the button slot is located in the middle of the dustproof and sound-transmitting mesh.

[0019] The technical solution provided by the present invention has the following technical effects:

[0020] 1. The present invention provides a dual-microphone self-balancing hearing aid, comprising a shell and a dual-microphone self-balancing component, wherein the dual-microphone self-balancing component is pivotally arranged in the shell, and the dual-microphone self-balancing component comprises a microphone, a pivot axis and a balance member, wherein two microphones are provided, and the two microphones are respectively located at opposite ends of the balance member, and the balance member is pivotally arranged in the shell through the pivot axis, and the two microphones are distributed on both sides of the pivot axis, so that the two microphones and the balance member and the pivot axis form a structure similar to a balance, and by utilizing the effect of gravity, the two microphones can automatically adjust and maintain a horizontal position, so that the dual microphones are always in a horizontal state under certain constraints, so that the effect of the directional focusing algorithm can reach a more ideal state.

[0021] 2. It also includes a switch button, which can switch the dual-microphone self-balancing component between a free state and a locked state. In the free state, the dual-microphone self-balancing component keeps the dual microphones in a horizontal state due to gravity; in the locked state, the dual-microphone self-balancing component cannot rotate. The switch button allows the dual microphones to switch between the balanced state and the locked state, thereby meeting more user scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of a hearing aid according to a first embodiment;

[0023] Figure 2is a partial exploded view of the hearing aid of the first embodiment;

[0024] Figure 3 is a full cross-sectional view of the hearing aid of the first embodiment;

[0025] Figure 4 is a perspective view of a hearing aid according to a second embodiment;

[0026] Figure 5 is a partial exploded view of a hearing aid according to a second embodiment;

[0027] Figure 6 is a top view of a hearing aid according to a second embodiment;

[0028] Figure 7 yes Figure 6 Middle AA section cutaway view;

[0029] Figure 8 yes Figure 6 Middle BB section cutaway view;

[0030] Fig. 9 yes Figure 8 Cross-sectional view of the CC section. DETAILED DESCRIPTION

[0031] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0032] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0033] Example 1

[0034] Reference Figure 1-3 As shown, this embodiment provides a dual-microphone self-balancing hearing aid 1, including a housing 10, a dust-proof sound-transmitting mesh 20, an earwax mesh 30, a sound guide tube 40, a receiver 50, a battery 60 and a dual-microphone self-balancing assembly 70.

[0035] The housing 10 is a hollow cavity structure. The housing 10 includes a first housing 11 and a second housing 12. The first housing 11 and the second housing 12 are mounted on each other and enclose a hollow cavity of the housing 10. The sound guide tube 40, the receiver 50, the battery 60 and the dual-microphone self-balancing assembly 70 are installed in the hollow cavity of the housing 10.

[0036] An ear inlet portion 101 and a main body 102 are formed on the shell 10. A dust-proof and sound-transmitting mesh 20 is installed on the outer end surface 1021 of the main body 102. A penetrating microphone sound inlet groove 111 is provided on the main body 102 correspondingly below the dust-proof and sound-transmitting mesh 20. External sound can penetrate the dust-proof and sound-transmitting mesh 20 and enter the shell 10 from the microphone sound inlet groove 111 to be received by the microphone.

[0037] The dual-microphone self-balancing assembly 70 includes two microphones 72, a pivot shaft 71, a circuit board 73, a balance member 74 and a counterweight 75. The dual-microphone self-balancing assembly 70 is pivotally arranged in the housing 10. Specifically, a pivot shaft 71 is passed through the middle of the balance member 74, and a center hole is provided in the middle of the balance member 74 for the pivot shaft 71 to pass through. Both ends of the pivot shaft 71 are supported on the housing 10. The two microphones 72 are respectively located at opposite ends of the balance member 74, and the two microphones 72 are distributed on both sides of the pivot shaft 71, so that the two microphones 72, the balance member 74 and the pivot shaft 71 form a structure similar to a balance. By using the effect of gravity, the two microphones 72 can automatically adjust and maintain a horizontal position, so that the dual microphones are always in a horizontal state under certain constraints, so that the effect of the directional focusing algorithm can reach a more ideal state.

[0038] A circuit board 73 is mounted on the balance member 74 . The circuit board 73 is a flexible printed circuit (FPC). The circuit board 73 is electrically connected to the two microphones 72 . The two microphones 72 can be mounted on the balance member 74 through the circuit board 73 .

[0039] Furthermore, the balancing member 74 is disc-shaped, and the line connecting the two microphones 72 passes through the center of the balancing member 74, so the self-balancing effect is better.

[0040] In this embodiment, the balance member 74 is substantially parallel to the outer end surface 1021 of the main body 102, and the two microphones 72 are installed on the balance member 74 on the side facing the microphone sound inlet slot 111, so as to better receive external sounds. The microphone sound inlet slot 111 is long arc-shaped, and there are two microphone sound inlet slots 111, respectively corresponding to the two microphones 72, thereby improving the effect of receiving external sounds. The dustproof sound-transparent net 20 is annular, and the dustproof sound-transparent net 20 covers the outer sides of the two microphone sound inlet slots 111, thereby covering the two microphone sound inlet slots 111, preventing dust and making the appearance more beautiful.

[0041] Furthermore, a counterweight 75 is installed on the other side of the balance member 74 opposite to the two microphones 72. The counterweight 75 and the microphones 72 together increase the weight of both ends of the balance member 74, so that the self-balancing effect of the dual-microphone self-balancing assembly 70 under the action of gravity is further improved. In some embodiments, the counterweight 75 and the balance member 74 can be integrally formed.

[0042] In this embodiment, the ear entry portion 101 is equipped with a cerumen net 30, a sound guide tube 40 and a receiver 50. The receiver 50 is electrically connected to the circuit board 73, thereby converting the electrical signal into a sound signal. The receiver 50 is connected to the sound guide tube 40 and the cerumen net 30 in sequence, and the sound signal is transmitted to the user's ear canal through the sound guide tube 40 and the cerumen net 30. A battery 60 is also installed in the housing 10 to provide energy for the operation of each component.

[0043] Example 2

[0044] Reference Figure 4-9 Based on Example 1, this embodiment provides a dual-microphone self-balancing hearing aid 1A, which also includes a switch button 80. The switch button 80 is installed on the main body 102A of the shell 10A. In this embodiment, the components with the same label are the same as those in Example 1.

[0045] The outer end surface 1021 of the main body 102A is concavely provided with a key slot 112, and the switch key 80 is installed in the key slot 112. The key slot 112 is located in the middle of the annular dustproof sound-transmitting net 20, and has a beautiful appearance and is easy to operate.

[0046] The switch button 80 includes a button body 81, a button shaft 82, a magnet 83, a magnetic conductive block 84, a spring 85 and a limit pin 86. The button body 81 is penetrated by the button shaft 82, and both ends of the button shaft 82 are assembled in the side wall holes of the button slot 112, so that the button body 81 can be pivotally and swingably mounted in the button slot 112.

[0047] The switch button 80 can switch the dual microphone self-balancing assembly 70 between a free state and a locked state. In the free state, the dual microphone self-balancing assembly 70 keeps the dual microphones in a horizontal state due to gravity; while in the locked state, the dual microphone self-balancing assembly 70 cannot rotate. The switch button 80 can switch the dual microphones between the balanced state and the locked state, thereby meeting more user usage scenarios.

[0048] The bottom surface of the key slot 112 is arranged opposite to the balance piece 74. A magnet 83 is embedded in the bottom of the key body 81, and a magnetic block 84 is penetrated through the bottom surface of the key slot 112. The magnetic block 84 is a magnetic material. The magnet 83 and the magnetic block 84 are arranged opposite to each other. The magnetic block 84 is arranged above the balance piece 74, and the balance piece 74 is a ferromagnetic material, such as iron. When the switch button 80 is pressed, the magnet 83 is close to the balance piece 74, and the magnetic force of the magnet 83 acts on the balance piece 74 through the magnetic block 84, thereby generating friction to prevent the balance piece 74 from rotating. In this embodiment, the balance piece 74 is disc-shaped. When the switch button 80 pops up, the magnet 83 is away from the balance piece 74, and the dual-microphone self-balancing assembly 70 can rotate freely, and the dual microphones are kept in a horizontal state at all times due to the action of gravity, thereby achieving self-balancing.

[0049] The bottom surface of the button body 81 is provided with a pin groove 811, and the limiting pin 86 is movably installed in the pin groove 811. The side wall of the pin groove 811 is provided with a pin hole 812. The limiting pin 86 includes a limiting shoulder 861 and a pin head 862. The pin head 862 passes through the pin hole 812, and the limiting shoulder 861 can abut against the side wall of the pin groove 811, thereby limiting the limiting pin 86 in the pin groove 811. The spring 85 is installed in the pin groove 811, and one end of the spring 85 abuts against the side wall of the pin groove 811, and the other end abuts against the limiting shoulder 861 of the limiting pin 86, thereby pushing the pin head 862 toward the outside of the pin hole 812. The side wall of the button slot 112 is provided with a limiting hole 1121, and the pin head 862 can be engaged with the limiting hole 1121, so as to limit the button body 81 and prevent the button body 81 from shaking and unexpectedly locking the dual-microphone self-balancing assembly 70, thereby improving the system reliability.

[0050] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A dual-microphone self-balancing hearing aid, characterized in that: The invention comprises a shell and a dual-microphone self-balancing component, wherein the dual-microphone self-balancing component is pivotally arranged in the shell, and the dual-microphone self-balancing component comprises a microphone, a pivot shaft and a balance member, wherein two microphones are provided, and the two microphones are respectively located at two opposite ends of the balance member, and the balance member is pivotally arranged in the shell through the pivot shaft, and the two microphones are distributed on both sides of the pivot shaft; the balance member is disc-shaped, and the connecting line of the two microphones passes through the center of the circle of the balance member; the shell is respectively provided with a microphone sound inlet groove corresponding to the two microphones, and the microphone sound inlet groove is a long arc shape; the two microphones are installed on the balance member on one side facing the microphone sound inlet groove, and a counterweight is installed on the balance member on the other side opposite to the two microphones; It also includes a switch button, which can switch the dual-microphone self-balancing component between a free state and a locked state; the shell is recessed with a button slot, and the switch button includes a button body, a button shaft, a magnet and a magnetic conductive block, the button body is penetrated by the button shaft, and the two ends of the button shaft are assembled in the side wall holes of the button slot, so that the button body can be pivotally and swingably installed in the button slot; the magnet is embedded in the bottom of the button body, and the magnetic conductive block is penetrated on the bottom surface of the button slot, the magnet and the magnetic conductive block are arranged opposite to each other, the magnetic conductive block is arranged above the balancing member, and the balancing member is made of ferromagnetic material; the switch The change key also includes a spring and a limit pin. The bottom surface of the key body is provided with a pin groove, and the limit pin is movably installed in the pin groove. The side wall of the pin groove is provided with a pin hole. The limit pin includes a limit shoulder and a pin head. The pin head passes through the pin hole, and the limit shoulder can abut against the side wall of the pin groove. The spring is installed in the pin groove, one end of the spring abuts against the side wall of the pin groove, and the other end abuts against the limit shoulder of the limit pin, thereby pushing the pin head toward the outside of the pin hole. The side wall of the key groove is provided with a limit hole, and the pin head can be snap-fitted with the limit hole.

2. The dual-microphone self-balancing hearing aid according to claim 1, characterized in that: It also includes a dustproof and sound-transmitting net, which is in a ring shape and is covered on the outer sides of the two microphone sound inlet grooves.

3. The dual-microphone self-balancing hearing aid according to claim 2, characterized in that: The key slot is located in the middle of the dustproof and sound-transmitting net.

4. The dual-microphone self-balancing hearing aid according to claim 1, characterized in that: The housing has an outer end surface, and the balance member is substantially parallel to the outer end surface.

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