Hearing aid earplug and hearing aid

Abstract

The utility model relates to the field of acoustic noise reduction, in particular to a hearing aid earplug and a hearing aid. The front cavity, namely the first cavity, is arranged in the earplug, and the size of the first cavity is increased, so that a high-frequency sound segment can move towards an intermediate frequency, meanwhile, the vibration peak value can be improved, high-frequency noise is reduced, extension of a high-frequency band is reduced, the gain effect of the earplug on the hearing aid is improved, the sound conversion frequency is improved, and the sound quality is improved. Therefore, the defect that in order to reduce the size of the hearing aid, the selected sounding component is small in size, low in output power and insufficient in loudness, so that the gain of the hearing aid cannot be improved is overcome.

Description

Technical Field

[0001] The utility model relates to the field of acoustic noise reduction, in particular to a hearing aid earplug and a hearing aid. Technical Background

[0002] A hearing aid is a small electronic device that is mainly used to amplify sound to help people with hearing loss understand conversations. Some hearing aids often include hearing aid earplugs that are suitable for hearing aids. This is because when hearing aids amplify the sound of the environment, they also amplify a lot of environmental noise. Therefore, adding noise-reducing earplugs can reduce the noise of the sound when the hearing aid amplifies the sound, which can better enable the hearing aid to function.

[0003] Among some existing technologies, CN116492138A-An earplug and electronic device discloses an earplug provided with an earplug head for inserting into the external auditory canal and an earplug cavity located outside the external auditory canal. The earplug head and the earplug cavity cooperate to achieve good sound insulation. At the same time, the earplug head is provided with an air vent connected to the cavity of the earplug cavity, so that the air vent can produce a viscous effect to absorb the energy of sound waves, making the energy reflected from the cavity to the eardrum smaller, thereby improving the ear-blocking effect of the earplug. However, when this technology is applied to hearing aids, the change in the volume of the front cavity of the earplug will affect the peak value of the resonance peak of the frequency response curve, which is not disclosed in this technology, and this effect on the gain effect of the hearing aid is also not disclosed in this technology. Utility Model Content

[0004] Therefore, for the special field of hearing aids, the utility model proposes an earplug structure suitable for hearing aids. This structure arranges a cavity connected to the sound guide tube in the ear canal, and increases the volume of the front cavity, so that the resonance peak of the frequency response curve of the overall earplug can move from high frequency to medium frequency, and at the same time can increase the peak-to-peak value of vibration, thereby reducing high-frequency noise, reducing the extension of the high-frequency band, and improving the sound conversion efficiency. It also increases the gain of the earplug in the corresponding frequency band, and overcomes the defect that in order to reduce the size of the hearing aid, the sound-emitting component is small in size, low in output power, and insufficient in loudness, which makes it impossible to improve the gain of the hearing aid.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A hearing aid earplug,

[0007] It comprises an earplug body, wherein a cavity penetrating the earplug body is provided in the middle of the earplug body;

[0008] The cavity includes a first cavity, a second cavity, and a third cavity which are connected in sequence; the third cavity is used to be installed in the sound outlet of the hearing aid; the first cavity is connected to the sound outlet provided on the earplug body, and the diameter of the first cavity is greater than the diameter of the second cavity.

[0009] In some embodiments, a cavity is provided inside the earplug that runs through the earplug body. One end of the cavity is connected to the human ear canal, and the other end is used to connect to the hearing aid. The cavity is mainly composed of three parts connected. The first cavity is used to connect to the human ear canal, the second cavity connects the first cavity and the third cavity, and the third cavity is used to connect and fix the hearing aid and is connected to the sound-emitting part of the hearing aid, so that the hearing aid can only penetrate into the human ear canal after the noise reduction of the hearing aid earplug, thereby achieving the noise reduction effect of the earplug. The setting of the first cavity can effectively improve the effect of reducing the noise generated inside the hearing aid, and by increasing the size of the first cavity, the resonance peak of the frequency response curve of the overall earplug can be moved from high frequency to medium frequency, and at the same time, the vibration peak-to-peak value can be increased, thereby reducing high-frequency noise, reducing the extension of the high-frequency band, and improving the sound conversion efficiency. The gain of the earplug in the corresponding frequency band is increased, thereby improving the gain of the hearing aid.

[0010] In some embodiments, the cross section of the third cavity is a cavity structure that is wide in the middle and narrow at the top and bottom, and an annular groove connected and fixed to the sound-emitting part is provided in the middle;

[0011] Alternatively, the earplug body is provided with a thin-wall structure, which extends from one end of the earplug body to the bottom of the second cavity, and is surrounded by the thin-wall structure to form a third cavity with a cross-section that is wide in the middle and narrow at the top and bottom, and a ring-shaped groove connected and fixed to the sound-emitting part is provided in the middle.

[0012] The third cavity is mainly used to connect with the sound-generating part of the hearing aid, and the sound-generating port of the sound-generating part passes through the third cavity and enters the human ear canal from the second cavity and the first cavity in sequence;

[0013] In some embodiments, the second cavity is a cylindrical cavity, and the axis of the second cavity is on the same straight line as the axes of the first cavity and the third cavity.

[0014] In some embodiments, the bottom of the first cavity is connected to the second cavity to form an annular step. The outer peripheral side of the annular step is connected to the sound outlet through an arc surface. An annular step is formed around the channel opening connecting the first cavity and the second cavity. When the volume of the first cavity expands, the annular platform extends outward according to the first cavity to expand the area.

[0015] In some embodiments, the earplug body is provided with an ear inlet portion, a sound guide portion, and a mounting portion which are connected in sequence, a first cavity is provided in the ear inlet portion, a second cavity is provided in the sound guide portion, and a third cavity is provided in the mounting portion; wherein the cross-sectional diameter of the ear inlet portion is larger than the cross-sectional diameter of the sound guide portion; the ear inlet portion is used to extend into the ear canal and is connected to the ear canal through a first cavity provided inside, the sound guide portion is used to connect the ear inlet portion and the mounting portion, the mounting portion is snap-fitted and installed with the hearing aid, and the third cavity is connected to the sound-emitting portion of the hearing aid, wherein, since the first cavity is larger than the second cavity, the cross-sectional diameter of the ear inlet portion is larger than the cross-sectional diameter of the sound guide portion.

[0016] In some embodiments, the periphery of the ear inlet is a spherical structure, and the ear inlet includes a spherical structure on the periphery of the first cavity and designed to facilitate contact with the ear canal.

[0017] In some embodiments, the hearing aid earplug is also provided with at least one annular wing; the annular wing is connected to the outer peripheral side of the earplug body; multiple annular wings are arranged in sequence on the outer peripheral side of the earplug body from the ear inlet to the installation part, and intervals are provided between the annular wings to form a tower-like structure.

[0018] In some embodiments, one end of the annular wing is connected to the outer peripheral side of the earplug body, and the other end extends obliquely away from the earplug body and forms an inclined surface on the upper surface; the annular wing is fixed on the earplug body by one end, and the other end extends outward, and the distance between the extended end and the earplug body increases with the extension; the upper surface of the annular wing is a wingspan inclined surface.

[0019] In some embodiments, a plurality of annular wings are arranged axially along the earplug body; the annular wings closer to the ear inlet are smaller in size, and the cross-sectional diameter at the bottom of the annular wings is also smaller;

[0020] A hearing aid comprises a speaker sound outlet hole, wherein the speaker sound outlet hole is used for clamping with a third cavity of any one of the above-mentioned hearing aid earplugs.

[0021] In some embodiments, the earplug suitable for the hearing aid is fixed to the sound output part of the hearing aid through the third cavity, and penetrates through the second cavity and the first cavity inside the earplug in sequence, and finally penetrates into the human ear canal.

[0022] The hearing aid earplug and the hearing aid of the utility model have the following effects:

[0023] By setting a front cavity, i.e., a first cavity, in the earplug and increasing the volume of the first cavity, the high-frequency sound segment can be moved toward the mid-frequency segment. At the same time, the peak-to-peak value of the vibration can be increased, thereby reducing high-frequency noise and reducing the extension of the high-frequency band, thereby improving the gain effect of the earplug on the hearing aid and increasing the sound conversion frequency, thereby overcoming the defect that in order to reduce the size of the hearing aid, the sound-emitting component is small in size, low in output power, and insufficient in loudness, which makes it impossible to improve the gain of the hearing aid. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the utility model;

[0025] Figure 2 The utility model is a cross-sectional view Figure 1 :

[0026] Figure 3 The utility model is a cross-sectional view Figure 2 ;

[0027] Figure 4 It is a top view of the utility model;

[0028] Reference numerals:

[0029] 100, ear entry; 120, circular step; 130, sound outlet;

[0030] 200. Sound guide;

[0031] 300, mounting portion; 320, thin-walled structure;

[0032] 400, annular wing;

[0033] 500, cavity; 510, first cavity; 520, second cavity; 530, third cavity;

[0034] a, diameter of the first cavity; b, diameter of the second cavity; DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present invention and should not be regarded as an improper limitation on the present invention.

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the specific technical solution of the utility model will be further described in detail below in conjunction with the drawings in the embodiment of the utility model. The following embodiments are used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0037] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0038] In addition, in the embodiments of the present invention, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0040] In the embodiments of the present invention, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0041] In the embodiments of the present invention, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present the related in a specific way.

[0042] Embodiment 1:

[0043] A hearing aid earplug,

[0044] Including earplugs, please refer to Figure 1-Figure 4 A cavity 500 is provided in the middle of the earplug body and penetrates the earplug body;

[0045] The cavity 500 includes a first cavity 510, a second cavity 520, and a third cavity 530 which are connected in sequence; the third cavity 530 is used to be installed in the sound outlet of the hearing aid; the first cavity 510 is connected to the sound outlet 130 provided on the earplug body, and the diameter a of the first cavity is greater than the diameter b of the second cavity.

[0046] In other embodiments, a cavity is provided inside the earplug that runs through the earplug body, one end of the cavity is connected to the human ear canal, and the other end is used to connect to the hearing aid. The cavity 500 is mainly composed of three parts connected together. The center lines of the first cavity 510, the second cavity 520, and the third cavity 530 are on the same straight line, so that the entire cavity runs through the entire earplug. The first cavity 510 is used to connect to the human ear canal and is set to a spherical structure. The second cavity 520 connects the first cavity 510 and the third cavity 530, and the first cavity 510 and the second cavity 520 are platforms at the connection position, which cuts a part of the sphere into a plane. The third cavity 530 is used to connect and fix the hearing aid, and is connected to the sound-emitting part of the hearing aid, so that the hearing aid is inserted only after the noise is reduced by the hearing aid earplug. The human ear canal realizes the noise reduction effect of the earplug. The third cavity 530 is provided with an annular groove inside for deforming and snapping into the hearing aid. The setting of the first cavity 510 can effectively improve the effect of reducing the noise generated inside the hearing aid, and by increasing the size of the first cavity 510, specifically setting three sizes, namely large, medium and small sizes, with diameters of 4.6mm, 3.6mm and 3mm. The cavity volume of the first cavity 510 is changed through three different sizes, so that the resonance peak of the frequency response curve of the overall earplug can be moved from high frequency to medium frequency, and at the same time, the peak-to-peak value of the vibration can be increased, so as to reduce high-frequency noise, reduce the extension of the high-frequency band, and improve the effect of sound conversion efficiency, and increase the gain of the earplug in the corresponding frequency band, thereby improving the gain of the hearing aid.

[0047] Embodiment 2:

[0048] Based on Example 1, please refer to Figure 3 , this embodiment further explains and optimizes the cavity;

[0049] In some preferred embodiments, the earplug body is provided with a thin-walled structure 320, which extends from one end of the earplug body to the bottom of the second cavity 520, and is used to enclose a third cavity 530 with a cross-section that is wide in the middle and narrow at the top and bottom. An annular groove connected and fixed to the sound-emitting part is provided in the middle of the third cavity 530, and the thin-walled structure 320 forms two parts in the entire second cavity 520. The space formed by the inner surface of the thin wall is used to fix the sound-emitting part, and the space outside the thin wall is a deformation space for clamping. The third cavity 530 is mainly used to connect with the sound-emitting part of the hearing aid, and the clamping method is that the sound-emitting part is clamped on the annular groove for fixation. The sound outlet of the sound-emitting part passes through the third cavity 530 and enters the human ear canal from the second cavity 520 and the first cavity 510 in turn; and because the earplug body is a soft structure, when the sound-emitting part is clamped inside the third cavity 530, the middle part of the earplug body is deformed and the sound-emitting part is clamped in the annular groove. After the clamping is completed, the material deformation is restored, and the entire sound-emitting part is fixed in the annular groove.

[0050] In some optional embodiments, the cross-section of the third cavity 530 is a cavity structure that is wide in the middle and narrow at the top and bottom, and an annular groove connected and fixed to the sound-emitting part is provided in the middle. The third cavity 530 is mainly used to connect with the sound-emitting part of the hearing aid, and the clamping method is to fix the sound-emitting part by clamping it on the annular groove. The sound-emitting port of the sound-emitting part passes through the third cavity 530 and enters the human ear canal from the second cavity 520 and the first cavity 510 in turn; and because the earplug body is a soft structure, when the sound-emitting part is clamped in the third cavity 530, the middle part of the earplug body is deformed and the sound-emitting part is clamped in the annular groove. After the clamping is completed, the material deformation is restored, and the entire sound-emitting part is fixed in the annular groove.

[0051] In other embodiments, the second cavity 520 is a cylindrical cavity, the axis of the second cavity 520 is in the same straight line as the axes of the first cavity 510 and the third cavity 530, and the diameter of the second cavity 520 is 1.2 mm.

[0052] In other embodiments, the bottom of the first cavity 510 is connected to the second cavity 520 and forms an annular step 120. The outer peripheral side of the annular step 120 is connected to the sound outlet 130 through an arc surface. The annular step 120 is formed around the channel opening connecting the first cavity 510 and the second cavity 520. When the volume of the first cavity 510 is expanded, the annular platform extends outward according to the first cavity 510 to expand the area. The first cavity 510 and the second cavity 520 are connected to form an annular platform. The annular platform is a spherical first cavity. The cavity 510 is cut into a spherical shape, with the upper part being a sphere and the lower part being a plane cut by the annular platform. When the volume of the first cavity 510 changes, that is, the diameter changes, the diameter of the annular platform also changes. When the volume of the second cavity 520 changes, the length of the second cavity 520 remains unchanged. When the diameter of the first cavity 510 is 4.6 mm, 3.6 mm, and 3 mm, the diameters of the first cavity 510 and the second cavity 520 are 6.8 mm, 5.6 mm, and 5.2 mm as a whole.

[0053] Embodiment 3:

[0054] Based on Example 1, please refer to Figure 3 , this embodiment further optimizes and explains the external structure of the earplug;

[0055] In other embodiments, the earplug body is provided with an ear inlet portion 100, a sound guide portion 200, and a mounting portion 300 which are connected in sequence, a first cavity 510 is provided in the ear inlet portion 100, a second cavity 520 is provided in the sound guide portion 200, and a third cavity 530 is provided in the mounting portion 300, and a circular through hole with a diameter of 1.5 mm is also provided on the first cavity 510 for connecting with the ear canal; wherein, the cross-sectional diameter of the ear inlet portion 100 is greater than the cross-sectional diameter of the sound guide portion 200, and when the first cavity 510 changes, the diameter of the second cavity 520 does not change; the ear inlet portion 100 is used to extend into the ear canal and is connected to the ear canal through the first cavity 510 arranged inside, the sound guide portion 200 is used to connect the ear inlet portion 100 and the mounting portion 300, the mounting portion 300 is snap-fitted and installed with the hearing aid, and the third cavity 530 is connected to the sound-emitting portion of the hearing aid.

[0056] In other embodiments, the periphery of the ear inlet 100 is a spherical structure, and the ear inlet 100 includes a spherical structure on the periphery of the first cavity 510 and is designed to facilitate contact with the ear canal. Since the first cavity 510 is a spherical structure, the exterior of the fixed ear inlet 100 is also a spherical structure, and the shapes of the first cavity 510 and the ear inlet 100 are consistent. When the diameters of the first cavity 510 are 4.6 mm, 3.6 mm, and 3 mm, the diameters of the exterior ear inlet 100 are 6 mm, 5 mm, and 4 mm.

[0057] In other embodiments, the hearing aid earplug is further provided with at least one annular wing 400; the annular wing 400 is connected and arranged on the outer peripheral side of the earplug body; multiple annular wings 400 are arranged in sequence on the outer peripheral side of the earplug body from the ear inlet 100 to the mounting part 300, and intervals are provided between the annular wings 400 to form a tower-like structure. The three annular wings 400 are mainly arranged outside the sound guide part 200, and are arranged from top to bottom, and an annular wing 400 is respectively provided near the ear inlet 100, in the middle of the sound guide part 200, and at the connection position between the mounting part 300 and the sound guide part 200, and a interval is provided in the middle.

[0058] In other embodiments, one end of the annular wing 400 is connected to the outer peripheral side of the earplug body, and the other end extends obliquely away from the earplug body and forms an inclined surface on the upper surface; the head of the annular wing 400 is fixed in an annular shape on the sound guide part 200, and the other end extends outward in a wingspan and is freely mounted outside the sound guide part 200, and the outer part of the sound guide part 200 is larger than the diameter of the third cavity 530. When the wingspan is extended, the annular fixed end of the annular wing 400 is also larger than the diameter of the third cavity 530, and the distance between the extended end and the earplug body becomes longer with the extension; the upper surface of the annular wing 400 is a wingspan inclined surface.

[0059] In other embodiments, multiple annular wings 400 are arranged axially along the earplug body; the closer the annular wing 400 is to the ear inlet 100, the smaller the size of the annular wing 400, and the smaller the cross-sectional diameter at the bottom of the annular wing 400 is; wherein the diameter of the annular wing 400 close to the ear inlet 100, the middle of the sound guide part 200, and the connection between the mounting part 300 and the sound guide part 200 gradually increases.

[0060] Embodiment 4:

[0061] A hearing aid comprises a speaker sound outlet hole, wherein the speaker sound outlet hole is used to be snap-fitted with a third cavity 530 of a hearing aid earplug described in Embodiment 1 or Embodiment 2 and Embodiment 2.

[0062] In other embodiments, a sound-emitting part connected to the earplug of Embodiment 1, Embodiment 2, and Embodiment 3 is provided on the hearing aid, and the sound-emitting part is provided with a clip-on part connected to the third cavity 530. The clip-on part is inserted into the third cavity 530, thereby deforming the third cavity 530 and clipping the sound-emitting part into the third cavity 530. The cross-section of the third cavity 530 is a cavity structure which is wide in the middle and narrow at the top and bottom, and an annular groove connected and fixed to the sound-emitting part is provided in the middle thereof. The third cavity 530 is mainly used to connect with the sound-emitting part of the hearing aid, and the clamping method is to fix the sound-emitting part by clamping it on the annular groove. The sound-emitting port of the sound-emitting part passes through the third cavity 530 and enters the human ear canal from the second cavity 520 and the first cavity 510 in turn; and because the earplug body is a soft structure, when the sound-emitting part is clamped into the inside of the third cavity 530, the middle part of the earplug body is deformed and the sound-emitting part is clamped in the annular groove. After the clamping is completed, the material deformation is restored, and the entire sound-emitting part is fixed in the annular groove.

[0063] The serial numbers of utility model embodiments are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent device or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hearing aid earplug, characterized in that: It comprises an earplug body, wherein a cavity penetrating the earplug body is provided in the middle of the earplug body; The cavity comprises a first cavity (510), a second cavity (520), and a third cavity (530) which are connected in sequence; the third cavity (530) is used to be installed in the sound-emitting part of the hearing aid; the first cavity (510) is connected to the sound outlet (130) provided on the earplug body, and the diameter (a) of the first cavity is greater than the diameter (b) of the second cavity.

2. The hearing aid earplug according to claim 1, characterized in that: The cross section of the third cavity (530) is a cavity (500) structure that is wide in the middle and narrow at the top and bottom, and an annular groove connected and fixed to the sound-generating part is provided in the middle; Alternatively, the earplug body is provided with a thin-walled structure (320), and the thin-walled structure (320) extends from one end of the earplug body to below the second cavity (520), and is surrounded by the thin-walled structure (320) to form a third cavity (530) with a cross-section that is wide in the middle and narrow at the top and bottom, and a ring-shaped groove connected and fixed to the sound-emitting part is provided in the middle.

3. The hearing aid earplug according to claim 1, characterized in that: The second cavity (520) is a cylindrical cavity.

4. The hearing aid earplug according to claim 1, characterized in that: The bottom of the first cavity (510) is connected to the second cavity (520) to form an annular step (120), and the outer peripheral side of the annular step (120) is connected to the sound outlet (130) via an arc surface.

5. The hearing aid earplug according to claim 1, characterized in that: The earplug body is provided with an ear inlet portion (100), a sound guide portion (200), and a mounting portion (300) which are connected in sequence; the first cavity (510) is provided in the ear inlet portion (100), the second cavity (520) is provided in the sound guide portion (200), and the third cavity (530) is provided in the mounting portion (300); wherein the cross-sectional diameter of the ear inlet portion (100) is greater than the cross-sectional diameter of the sound guide portion (200).

6. The hearing aid earplug according to claim 5, characterized in that: The outer periphery of the ear inlet (100) is a spherical structure.

7. The hearing aid earplug according to claim 5, characterized in that: The hearing aid earplug is also provided with at least one annular wing (400); the annular wing (400) is connected to the outer peripheral side of the earplug body.

8. The hearing aid earplug according to claim 7, characterized in that: One end of the annular wing (400) is connected to the outer peripheral side of the earplug body, and the other end extends obliquely away from the earplug body and forms an inclined surface on the upper surface.

9. The hearing aid earplug according to claim 8, characterized in that: The plurality of annular wings (400) are arranged axially along the earplug body; the annular wings (400) closer to the ear inlet (100) are smaller in size, and the cross-sectional diameter at the bottom is also smaller.

10. A hearing aid, characterized in that: It comprises a speaker sound outlet hole, and the speaker sound outlet hole is used to be snap-fitted with the third cavity (530) of the hearing aid earplug according to any one of claims 1 to 9.

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