Noise reduction device and noise reduction earplug

Abstract

The invention discloses a noise reduction device and a noise reduction earplug, and relates to the technical field of earplugs. The noise reduction device comprises a shell and a noise reduction part, a communicated channel is formed in the shell, a sound inlet hole communicated with the channel is formed in the end, away from the ear canal of the user, of the shell, and a sound outlet hole communicated with the channel is formed in the end, close to the ear canal of the user, of the shell; the number of the noise reduction pieces is at least two, and the noise reduction pieces are arranged in the channel. The noise reduction earplug comprises a wearing part, a noise reduction device and an ear cap, the wearing part is used for being placed in an auricular concha, the wearing part is provided with a mounting cavity, and the side, away from the auricular concha, of the wearing part is provided with a placement hole communicated with the mounting cavity; the noise reduction device is assembled in the mounting cavity, a sound inlet hole of the noise reduction device faces the imbedding hole, and a sound outlet hole of the noise reduction device faces the ear canal; the ear cap is assembled on the side, away from the imbedding hole, of the wearing part and used for being imbedded in the ear canal. By adopting the technical scheme, the earphone has the advantage of good noise reduction effect on the premise of reducing stimulation to eardrums.

Description

Technical Field

[0001] The present invention relates to the technical field of earplugs, and particularly to a noise reduction device and noise reduction earplugs. Background Art

[0002] A noisy sleep environment will affect our sleep quality. In the long run, it will not only affect our mental state, but also cause a series of health problems, such as: sleep disorders, reduced immunity, increased risk of chronic diseases such as hypertension, etc.; at the same time, in addition to reducing noise interference in the sleep environment, in our daily life during the day, the honking of cars, noisy neighbors during renovation, smart devices such as mobile phones, etc., the noise they generate will cause irreparable damage to our hearing.

[0003] In order to reduce the impact of noise on life, noise reduction earplugs have become the most common choice. However, the noise reduction earplugs on the market either have a general noise reduction effect; or their ends are closed to improve the noise reduction function, which easily stimulates the eardrum and causes discomfort to users. Therefore, there is an urgent need for improvement. Summary of the Invention

[0004] The purpose of the present invention is to provide a noise reduction device and noise reduction earplugs, which have the advantage of good noise reduction effect on the premise of reducing the stimulation of the eardrum, aiming at the defects and deficiencies of the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a noise reduction device for earplugs, comprising:

[0006] A housing, the interior of the housing has a communicating channel, an incoming sound hole communicating with the channel is opened at one end of the housing far from the user's ear canal, and an outgoing sound hole communicating with the channel is opened at one end of the housing close to the user's ear canal; and

[0007] A noise reduction member, at least two noise reduction members are provided and are arranged in the channel.

[0008] The present invention is further provided that the channel is arranged in a zigzag manner.

[0009] The present invention is further provided that the housing includes:

[0010] A main body portion, one end of the main body portion is provided with an open end;

[0011] An inner ring wall, which is arranged in the main body portion, the inner ring wall seals one end of the main body portion far from the open end and the circumferential side defined by the inner ring wall, there is a distance between one end of the inner ring wall close to the open end and the open end, a first cavity is formed between the main body portion and the inner ring wall, and a second cavity is formed inside the inner ring wall;

[0012] A handle portion, connected to the main body portion, a third cavity is formed inside the handle portion, one end of the third cavity close to the main body portion is communicated with the second cavity, and the sound outlet hole is opened at the end far from the main body portion; and

[0013] A cover plate, which covers the open portion of the main body portion, and the sound inlet hole is opened on the cover plate;

[0014] The first cavity, the second cavity and the third cavity together form the channel.

[0015] In a further setting of the present invention, the main body portion is in a disc shape, and the open portion is located on one circular surface of the main body portion; the handle portion is in a long cylindrical shape, and one end is connected between the other circular surface and the circumferential side of the main body portion.

[0016] In a further setting of the present invention, the noise reduction member includes:

[0017] A first noise reduction member, assembled on the inner side of the cover plate, for blocking the sound inlet hole;

[0018] A second noise reduction member, assembled on the inner ring wall close to the cover plate side, for blocking the entrance of the second cavity; and

[0019] A third noise reduction member, assembled on the handle portion close to the sound outlet hole side, for blocking the sound outlet hole.

[0020] In a further setting of the present invention, a limiting protrusion for installing the first noise reduction member is provided on the inner side of the cover plate, and the limiting protrusions are distributed around the sound inlet hole.

[0021] In a further setting of the present invention, the first noise reduction member, the second noise reduction member and the third noise reduction member are all sound insulation damping nets; the mesh densities of the first noise reduction member and the second noise reduction member are the same, and are both greater than the mesh density of the third noise reduction member.

[0022] In a further setting of the present invention, the first noise reduction member, the second noise reduction member and the third noise reduction member are all sound insulation damping nets; the mesh densities of the second noise reduction member and the third noise reduction member are the same, and are both less than the mesh density of the first noise reduction member.

[0023] To achieve the above object, another technical solution adopted by the present invention is: a noise reduction earplug, including:

[0024] A wearing portion, for being placed into the concha, the wearing portion has an installation cavity, and a placement hole communicated with the installation cavity is opened on the side of the wearing portion far from the concha;

[0025] The noise reduction device as described above is assembled in the installation cavity, and the sound inlet hole of the noise reduction device faces the insertion hole, and the sound outlet hole of the noise reduction device faces the ear canal; and

[0026] An ear cap is assembled on the side of the wearing part away from the insertion hole and is used to be inserted into the ear canal.

[0027] After adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0028] In the present invention, by providing a connected channel inside the housing, and opening a sound inlet hole at one end of the housing away from the user's ear canal and a sound outlet hole at one end close to the user's ear canal, the noise reduction device is not a fully enclosed structure, and external air, sound, etc. can enter the user's ear canal through the sound inlet hole along the channel from the sound outlet hole, thereby reducing the stimulation to the user's eardrum and improving the user experience; and by providing at least two noise reduction components in the channel, multi-stage noise reduction is adopted to improve the noise reduction effect, so as to improve the noise reduction effect on the premise of reducing the stimulation to the eardrum. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0030] Figure 1 is a schematic structural diagram of the noise reduction device;

[0031] Figure 2 is a schematic structural diagram of the noise reduction device from another perspective;

[0032] Figure 3 is an exploded schematic structural diagram of the noise reduction device;

[0033] Figure 4 is a schematic structural diagram of the cover plate;

[0034] Figure 5 is a schematic diagram of the noise reduction earplug inserted into the ear;

[0035] Figure 6 is a schematic structural diagram of the noise reduction earplug;

[0036] Figure 7 is an exploded schematic structural diagram of the noise reduction earplug.

[0037] Description of reference numerals: a, the first cavity; b, the second cavity; c, the third cavity; 100, the noise reduction device; 110, the housing; 111, the main body; 112, the inner ring wall; 113, the handle; 1131, the sound outlet hole; 114, the cover plate; 1141, the sound inlet hole; 1142, the limiting protrusion; 120, the first noise reduction member; 130, the second noise reduction member; 140, the third noise reduction member; 200, the wearing part; 300, the ear cap. Detailed implementation manners

[0038] The present invention will be further described in detail below with reference to the accompanying drawings.

[0039] This specific embodiment is only an interpretation of the present invention and is not a limitation thereto. After reading this specification, those skilled in the art may make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0040] This embodiment relates to a noise reduction device 100 for an earplug. Referring to Figures 1 - 3 , it includes: a housing 110 and noise reduction members. Among them, a communicating channel is provided inside the housing 110. An inlet sound hole 1141 communicating with the channel is provided at one end of the housing 110 away from the user's ear canal, and an outlet sound hole 1131 communicating with the channel is provided at one end of the housing 110 close to the user's ear canal. At least two noise reduction members are provided and are arranged in the channel.

[0041] By providing a communicating channel inside the housing 110, and providing an inlet sound hole 1141 at one end of the housing 110 away from the user's ear canal and an outlet sound hole 1131 at one end close to the user's ear canal, the noise reduction device 100 is not a fully enclosed structure, and external air, sound, etc. can enter the user's ear canal through the inlet sound hole 1141 along the channel from the outlet sound hole 1131, thereby reducing the stimulation to the user's eardrum and improving the user experience; and by providing at least two noise reduction members in the channel, multi-stage noise reduction is used to improve the noise reduction effect, so as to improve the noise reduction effect on the premise of reducing the stimulation to the eardrum.

[0042] In this embodiment, three noise reduction members are provided. In other embodiments, the number of noise reduction members can also be set to two, four, five or even more.

[0043] In order to further improve the noise reduction and sound elimination effects, the channel inside the housing 110 is arranged in a zigzag shape. Compared with a straight channel, the zigzag channel helps to weaken the propagation of sound.

[0044] Specifically, referring to Figures 1 - 3, the housing 110 includes: a main body portion 111, an inner ring wall 112, a handle portion 113, and a cover plate 114. Among them, one end of the main body portion 111 is provided with an open mouth. The inner ring wall 112 is disposed within the main body portion 111. The inner ring wall 112 seals one end within the main body portion 111 that is away from the open mouth and the peripheral side defined by the inner ring wall 112, and there is a distance between one end of the inner ring wall 112 close to the open mouth and the open mouth. A first cavity a is formed between the main body portion 111 and the inner ring wall 112, and a second cavity b is formed within the inner ring wall 112. The handle portion 113 is connected to the main body portion 111, and a third cavity c is formed within the handle portion 113. One end of the third cavity c close to the main body portion 111 is communicated with the second cavity b, and the sound outlet hole 1131 is provided at the end away from the main body portion 111. The cover plate 114 covers the open mouth of the main body portion 111, and the sound inlet hole 1141 is provided on the cover plate 114. The first cavity a, the second cavity b, and the third cavity c together form a passage. Since there is a gap between the inner ring wall 112 and the open mouth of the main body portion 111, after the external air and sound enter the first cavity a, they can continue to enter the second cavity b through this gap, then enter the third cavity c, and finally enter the ear canal from the sound outlet hole 1131. The air circulation helps to maintain air pressure balance and reduce the irritation to the eardrum; and the setting of multiple cavities helps to reduce noise in the ear canal, improving the noise reduction effect.

[0045] More specifically, the main body portion 111 is in the shape of a round cake, and the open mouth is located on one circular surface of the main body portion 111. The handle portion 113 is in the shape of a long tube, and one end is connected between the other circular surface of the main body portion 111 and the peripheral side.

[0046] In other embodiments, the housing 110 can also be set in other shapes, as long as it maintains a tortuous channel inside.

[0047] Specifically, referring to Figures 1 - 3 , the noise reduction member includes: a first noise reduction member 120, a second noise reduction member 130, and a third noise reduction member 140. Among them, the first noise reduction member 120 is assembled on the inner side of the cover plate 114 for blocking the sound inlet hole 1141. The second noise reduction member 130 is assembled on the side of the inner ring wall 112 close to the cover plate 114 for blocking the entrance of the second cavity b. The third noise reduction member 140 is assembled on the side of the handle portion 113 close to the sound outlet hole 1131 for blocking the sound outlet hole 1131. By providing three noise reduction members and arranging these three noise reduction members at specific positions, an obvious noise reduction effect is achieved. The path through which the external air and sound pass is as follows: the sound inlet hole 1141, the first noise reduction member 120, the first cavity a, the second noise reduction member 130, the second cavity b, the third cavity c, the sound outlet hole 1131. In some embodiments, an additional noise reduction member can also be provided between the second cavity b and the third cavity c.

[0048] On the basis of the above solution, referring to Figure 4, on the inner side of the cover plate 114, there are limiting protrusions 1142 for installing the first noise reduction member 120, and the limiting protrusions 1142 are distributed on the periphery of the sound inlet hole 1141. By providing the limiting protrusions 1142, the first noise reduction member 120 can be pressed relatively firmly inside the limiting protrusions 1142. Similarly, on the side of the inner ring wall 112 close to the cover plate 114, there is a convex ring, and the second noise reduction member 130 is pressed inside the convex ring; on the side of the third cavity c close to the sound outlet hole 1131, there is also a convex ring, and the third noise reduction member 140 is pressed inside this convex ring.

[0049] In this embodiment, the sound insulation effects of the first noise reduction member 120, the second noise reduction member 130, and the third noise reduction member 140 increase in sequence. In the direction from the sound inlet hole 1141 to the sound outlet hole 1131, the sound insulation effects increase in sequence. On the premise of ensuring the sound insulation effect, it can also reduce the stimulation to the eardrum. If in the direction from the sound inlet hole 1141 to the sound outlet hole 1131, the sound insulation effects decrease in sequence, the noise reduction effect will be slightly worse, and the first noise reduction member 120 has intercepted most of the external air, which will be somewhat similar to a closed structure and will cause some stimulation to the eardrum.

[0050] Specifically, the first noise reduction member 120, the second noise reduction member 130, and the third noise reduction member 140 are all sound insulation damping nets. In the case of having a damping net, it is equivalent to increasing the cavity volume and improving the noise reduction effect.

[0051] In one embodiment, the mesh densities of the first noise reduction member 120 and the second noise reduction member 130 are the same, and both are greater than the mesh density of the third noise reduction member 140. For example, the first noise reduction member 120 is 200 mesh, the second noise reduction member 130 is 600 mesh, and the third noise reduction member 140 is 600 mesh.

[0052] In one embodiment, the mesh densities of the second noise reduction member 130 and the third noise reduction member 140 are the same, and both are less than the mesh density of the first noise reduction member 120. For example, the first noise reduction member 120 is 300 mesh, the second noise reduction member 130 is 300 mesh, and the third noise reduction member 140 is 600 mesh.

[0053] This embodiment also provides a noise reduction earplug, referring to Figures 5 - 7, including: a wearing part 200, a noise reduction device 100, and an ear cap 300. Among them, the wearing part 200 is used to be placed into the concha. The wearing part 200 has an installation cavity, and an insertion hole communicating with the installation cavity is provided on the side of the wearing part 200 away from the concha. The noise reduction device 100 is assembled in the installation cavity, and the sound inlet hole 1141 of the noise reduction device 100 faces the insertion hole, while the sound outlet hole 1131 of the noise reduction device 100 faces the ear canal. The ear cap 300 is assembled on the side of the wearing part 200 away from the insertion hole and is used to be placed into the ear canal. Both the wearing part 200 and the ear cap 300 are made of flexible materials, which makes it more comfortable for users to wear and reduces the damage to the ears. The housing 110 of the noise reduction device 100 is made of a hard material.

[0054] The working principle of the present invention is roughly as follows: By providing a connected channel inside the housing 110, and providing a sound inlet hole 1141 at one end of the housing 110 away from the user's ear canal and a sound outlet hole 1131 at one end close to the user's ear canal, the noise reduction device 100 is not a fully enclosed structure, and external air, sound, etc. can enter the user's ear canal through the sound inlet hole 1141 along the channel from the sound outlet hole 1131, thereby reducing the stimulation to the user's eardrum and improving the user experience; and by providing at least two noise reduction components in the channel, multi-stage noise reduction is used to improve the noise reduction effect, so as to improve the noise reduction effect on the premise of reducing the stimulation to the eardrum.

[0055] The above is only used to illustrate the technical solution of the present invention and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, shall be covered by the scope of the claims of the present invention.

Claims

1. A noise reduction device for earplugs, characterized in that, Comprising: A housing (110) having a communicating channel inside, an incoming sound hole (1141) communicating with the channel is provided at one end of the housing (110) away from the user's ear canal, and an outgoing sound hole (1131) communicating with the channel is provided at one end of the housing (110) close to the user's ear canal; and Noise reduction members, at least two of which are provided and arranged in the channel.

2. The noise reduction device according to claim 1, wherein The channel is arranged in a zigzag manner.

3. The noise reduction device according to claim 2, wherein The housing (110) includes: A main body portion (111) having an open end at one end; An inner ring wall (112) arranged inside the main body portion (111), the inner ring wall (112) seals one end of the main body portion (111) away from the open end and the peripheral side defined by the inner ring wall (112), and there is a distance between one end of the inner ring wall (112) close to the open end and the open end. A first cavity (a) is formed between the main body portion (111) and the inner ring wall (112), and a second cavity (b) is formed inside the inner ring wall (112); A handle portion (113) connected to the main body portion (111), a third cavity (c) is formed inside the handle portion (113), one end of the third cavity (c) close to the main body portion (111) communicates with the second cavity (b), and the other end away from the main body portion (111) is provided with the outgoing sound hole (1131); and A cover plate (114) covering the open end of the main body portion (111), and the incoming sound hole (1141) is provided on the cover plate (114); The first cavity (a), the second cavity (b) and the third cavity (c) together form the channel.

4. The noise reduction device according to claim 3, wherein The main body portion (111) is in a disc shape, and the open end is located on one circular surface of the main body portion (111); the handle portion (113) is in a long cylindrical shape and is connected to the other circular surface and the peripheral side of the main body portion (111) at one end.

5. The noise reduction device according to claim 3, characterized in that, The noise reduction members include: A first noise reduction member (120) assembled inside the cover plate (114) for blocking the incoming sound hole (1141); A second noise reduction member (130) assembled on the side of the inner ring wall (112) close to the cover plate (114) for blocking the entrance of the second cavity (b); and A third noise reduction member (140) assembled on the side of the handle portion (113) close to the outgoing sound hole (1131) for blocking the outgoing sound hole (1131).

6. The noise reduction device according to claim 5, wherein A limiting protrusion (1142) for installing the first noise reduction member (120) is provided inside the cover plate (114), and the limiting protrusions (1142) are distributed on the periphery of the incoming sound hole (1141).

7. The noise reduction device according to claim 5, wherein The first noise reduction member (120), the second noise reduction member (130) and the third noise reduction member (140) are all sound insulation damping nets; the mesh densities of the first noise reduction member (120) and the second noise reduction member (130) are the same and are both greater than the mesh density of the third noise reduction member (140).

8. The noise reduction device according to claim 5, characterized in that The first noise reduction member (120), the second noise reduction member (130), and the third noise reduction member (140) are all sound insulation damping nets; the mesh densities of the second noise reduction member (130) and the third noise reduction member (140) are the same and are both smaller than the mesh density of the first noise reduction member (120).

9. A noise-canceling earplug, characterized in that, Comprising: A wearing part (200) for being placed into the concha. The wearing part (200) has an installation cavity, and an insertion hole communicating with the installation cavity is formed on a side of the wearing part (200) away from the concha. The noise reduction device (100) according to any one of claims 1-8, the noise reduction device (100) is assembled in the installation cavity, and the sound inlet hole (1141) of the noise reduction device (100) faces the insertion hole, and the sound outlet hole (1131) of the noise reduction device (100) faces the ear canal; and An ear cap (300) assembled on a side of the wearing part (200) away from the insertion hole for being placed into the ear canal.

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