Noise reduction device and noise reduction earplug

Abstract

The utility model 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] This utility model relates to the field of earplug technology, specifically to a noise reduction device and a noise reduction earplug. Background Technology

[0002] A noisy sleeping environment can affect our sleep quality. Over time, this can not only affect our mental state but also lead to a series of health problems, such as sleep disorders, weakened immunity, and increased risk of chronic diseases like high blood pressure. In addition to reducing noise interference in the sleeping environment, noise from car horns, neighbors renovating, and smart devices like mobile phones during the day can cause irreparable damage to our hearing.

[0003] To reduce the impact of noise on daily life, noise-canceling earplugs have become the most common choice. However, noise-canceling earplugs on the market either have only mediocre noise-canceling effects or are sealed at the ends to enhance noise-canceling capabilities, which can easily irritate the eardrum and cause discomfort to users. Therefore, improvements are urgently needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a noise reduction device and noise-canceling earplugs, which have the advantage of good noise reduction effect while reducing stimulation to the eardrum.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a noise reduction device for earplugs, comprising:

[0006] A housing, wherein the housing has a communicating channel inside, an inlet hole communicating with the channel is opened at the end of the housing away from the user's ear canal, and an outlet hole communicating with the channel is opened at the end of the housing closer to the user's ear canal; and

[0007] Noise reduction components, wherein at least two noise reduction components are provided and disposed within the channel.

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

[0009] The present invention further comprises, wherein the housing includes:

[0010] The main body has an opening at one end;

[0011] An inner ring wall is disposed within the main body portion. The inner ring wall blocks the end of the main body portion away from the opening and the periphery defined by the inner ring wall. A distance is left between the end of the inner ring wall near the opening and the opening. A first cavity is formed between the main body portion and the inner ring wall, and a second cavity is formed within the inner ring wall.

[0012] A handle, connected to the main body, having a third cavity formed within it, the third cavity having a second cavity at one end near the main body and a sound outlet at the other end away from the main body; and

[0013] A cover plate that covers the opening of the main body, and the cover plate is provided with the sound inlet hole;

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

[0015] The present invention is further provided that the main body is in the shape of a disc, and the opening is located on one circular surface of the main body; the handle is in the shape of a long cylinder, and one end is connected between the other circular surface and the periphery of the main body.

[0016] The present invention further comprises the following noise reduction component:

[0017] The first noise reduction component is assembled on the inner side of the cover plate and is used to block the sound inlet hole;

[0018] A second noise reduction component is assembled on the inner ring wall near the cover plate to block the entrance of the second cavity; and

[0019] The third noise reduction component is assembled on the side of the handle near the sound outlet and is used to block the sound outlet.

[0020] The present invention further provides that the inner side of the cover plate is provided with a limiting protrusion for mounting the first noise reduction component, and the limiting protrusion is distributed around the sound inlet hole.

[0021] The present invention is further provided that the first noise reduction component, the second noise reduction component, and the third noise reduction component are all sound insulation damping meshes; the mesh density of the first noise reduction component and the second noise reduction component are the same, and both are greater than the mesh density of the third noise reduction component.

[0022] The present invention is further provided that the first noise reduction component, the second noise reduction component, and the third noise reduction component are all sound insulation damping meshes; the second noise reduction component and the third noise reduction component have the same mesh density, and both are less than the mesh density of the first noise reduction component.

[0023] To achieve the above objectives, another technical solution adopted by this utility model is: a noise-canceling earplug, comprising:

[0024] A wearing part for insertion into the concha, the wearing part having a mounting cavity, and an insertion hole communicating with the mounting cavity on the side of the wearing part away from the concha;

[0025] The noise reduction device described above is assembled within the mounting cavity, with the sound inlet of the noise reduction device facing the insertion hole and the sound outlet of the noise reduction device facing the ear canal; and

[0026] An ear cap is fitted onto the side of the wearing part away from the insertion hole and is used to insert into the ear canal.

[0027] After adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0028] In this invention, by providing a connecting channel inside the housing, and having an inlet hole at the end of the housing away from the user's ear canal and an outlet hole at the end closer to the user's ear canal, the noise reduction device is not a completely enclosed structure. Outside air and sound can enter the user's ear canal through the inlet hole and the channel, thereby reducing stimulation to the user's eardrum and improving the user experience. Furthermore, by providing at least two noise reduction components inside the channel, multi-level noise reduction is used to improve the noise reduction effect, thereby improving the noise reduction effect while reducing stimulation to the eardrum. Attached Figure Description

[0029] 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.

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

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

[0032] Figure 3 This is an exploded view of the noise reduction device.

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

[0034] Figure 5 This is a diagram illustrating the insertion of noise-canceling earplugs into the ear;

[0035] Figure 6 This is a schematic diagram of the structure of noise-canceling earplugs;

[0036] Figure 7 This is an exploded view of the structure of a noise-canceling earphone.

[0037] Explanation of reference numerals in the attached drawings: a, First cavity; b, Second cavity; c, Third cavity; 100, Noise reduction device; 110, Housing; 111, Main body; 112, Inner ring wall; 113, Handle; 1131, Sound outlet; 114, Cover plate; 1141, Sound inlet; 1142, Limiting protrusion; 120, First noise reduction component; 130, Second noise reduction component; 140, Third noise reduction component; 200, Wearing part; 300, Ear cap. Detailed Implementation

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

[0039] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0040] This embodiment relates to a noise reduction device 100 for earplugs, see reference. Figures 1-3 The device includes a housing 110 and noise-canceling components. The housing 110 has an internal channel; an inlet hole 1141 communicating with the channel is located at the end of the housing 110 furthest from the user's ear canal, and an outlet hole 1131 communicating with the channel is located at the end of the housing 110 closest to the user's ear canal. At least two noise-canceling components are provided and are disposed within the channel.

[0041] By providing a connecting channel inside the housing 110, and having an inlet hole 1141 at the end of the housing 110 away from the user's ear canal and an outlet hole 1131 at the end closer to the user's ear canal, the noise reduction device 100 is not a completely enclosed structure. Outside air and sound can enter the user's ear canal through the inlet hole 1141 and the channel, and then through the outlet hole 1131, thereby reducing stimulation to the user's eardrum and improving the user experience. Furthermore, by providing at least two noise reduction components inside the channel, multi-level noise reduction is used to improve the noise reduction effect, thereby improving the noise reduction effect while reducing stimulation to the eardrum.

[0042] In this embodiment, three noise reduction components are provided. In other embodiments, two, four, five, or even more noise reduction components may be provided.

[0043] To further improve noise reduction and sound attenuation, the internal channels of the housing 110 are designed in a tortuous manner. Compared to straight channels, tortuous channels help to weaken the propagation of sound.

[0044] Specifically, refer to Figures 1-3The housing 110 includes a main body 111, an inner ring wall 112, a handle 113, and a cover plate 114. The main body 111 has an opening at one end. The inner ring wall 112 is disposed within the main body 111, sealing the end of the main body 111 away from the opening and the periphery defined by the inner ring wall 112, with a distance between the end of the inner ring wall 112 near the opening and the opening. A first cavity a is formed between the main body 111 and the inner ring wall 112, and a second cavity b is formed within the inner ring wall 112. The handle 113 is connected to the main body 111, and a third cavity c is formed within the handle 113. The end of the third cavity c near the main body 111 communicates with the second cavity b, and the end away from the main body 111 has the sound outlet 1131. The cover plate 114 covers the opening of the main body 111, and the cover plate 114 has the sound inlet 1141. The first cavity a, the second cavity b, and the third cavity c together form a channel. Because there is a gap between the inner ring wall 112 and the opening of the main body 111, outside air and sound, after entering the first cavity a, can continue through this gap into the second cavity b, then into the third cavity c, and finally into the ear canal through the sound outlet 1131. This airflow helps maintain air pressure balance, reducing stimulation to the eardrum; and the multiple cavities help reduce noise in the ear canal, improving the noise reduction effect.

[0045] More specifically, the main body 111 is disc-shaped, with an opening located on one circular surface of the main body 111. The handle 113 is cylindrical, with one end connected between the other circular surface of the main body 111 and its periphery.

[0046] In other embodiments, the housing 110 may also be configured in other shapes, as long as it retains the internal tortuous channels.

[0047] Specifically, refer to Figures 1-3 The noise reduction components include a first noise reduction component 120, a second noise reduction component 130, and a third noise reduction component 140. The first noise reduction component 120 is mounted inside the cover plate 114 to block the sound inlet 1141. The second noise reduction component 130 is mounted on the inner ring wall 112 near the cover plate 114 to block the entrance of the second cavity b. The third noise reduction component 140 is mounted on the handle 113 near the sound outlet 1131 to block the sound outlet 1131. By providing three noise reduction components and arranging them in specific locations, a significant noise reduction effect is achieved. The path of external air and sound is as follows: sound inlet 1141, first noise reduction component 120, first cavity a, second noise reduction component 130, second cavity b, third cavity c, sound outlet 1131. In some embodiments, an additional noise reduction component may be provided between the second cavity b and the third cavity c.

[0048] Based on the above plan, and referring to Figure 4The inner side of the cover plate 114 is provided with a limiting protrusion 1142 for mounting the first noise reduction component 120, and the limiting protrusion 1142 is distributed around the sound inlet hole 1141. By providing the limiting protrusion 1142, the first noise reduction component 120 can be pressed relatively firmly inside the limiting protrusion 1142. Similarly, a convex ring is provided on the side of the inner ring wall 112 near the cover plate 114, and the second noise reduction component 130 is pressed inside the convex ring; a convex ring is also provided on the side of the third cavity c near the sound outlet hole 1131, and the third noise reduction component 140 is pressed inside the convex ring.

[0049] In this embodiment, the sound insulation effects of the first noise reduction component 120, the second noise reduction component 130, and the third noise reduction component 140 increase sequentially. The sound insulation effect increases sequentially from the sound inlet 1141 to the sound outlet 1131, ensuring sound insulation while reducing stimulation to the eardrum. If the sound insulation effect decreases sequentially from the sound inlet 1141 to the sound outlet 1131, the noise reduction effect will be slightly worse, and the first noise reduction component 120, having already blocked most of the outside air, will resemble a closed structure, potentially causing some stimulation to the eardrum.

[0050] Specifically, the first noise reduction component 120, the second noise reduction component 130 and the third noise reduction component 140 are all sound insulation damping meshes. With the damping mesh, it is equivalent to increasing the cavity volume and improving the noise reduction effect.

[0051] In one embodiment, the first noise reduction element 120 and the second noise reduction element 130 have the same mesh density, and both are greater than the mesh density of the third noise reduction element 140. For example, the first noise reduction element 120 has a mesh size of 200, the second noise reduction element 130 has a mesh size of 600, and the third noise reduction element 140 has a mesh size of 600.

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

[0053] This embodiment also provides a noise-canceling earplug, see reference. Figures 5-7The device includes a wearing part 200, a noise-canceling device 100, and an ear cap 300. The wearing part 200 is inserted into the concha and has a mounting cavity. An insertion hole communicating with the mounting cavity is formed on the side of the wearing part 200 away from the concha. The noise-canceling device 100 is fitted into the mounting cavity, with its inlet 1141 facing the insertion hole and its outlet 1131 facing the ear canal. The ear cap 300 is fitted onto the side of the wearing part 200 away from the insertion hole and is inserted into the ear canal. Both the wearing part 200 and the ear cap 300 are made of flexible materials, making them more comfortable for the user and reducing damage to the ears. The housing 110 of the noise-canceling device 100 is made of a rigid material.

[0054] The working principle of this utility model is roughly as follows: By providing a connecting channel inside the housing 110, and providing an inlet hole 1141 at the end of the housing 110 away from the user's ear canal and an outlet hole 1131 at the end closer to the user's ear canal, the noise reduction device 100 is not a completely enclosed structure. Outside air and sound can enter the user's ear canal through the inlet hole 1141 and the channel, thereby reducing stimulation to the user's eardrum and improving the user experience. Furthermore, by providing at least two noise reduction components in the channel, multi-level noise reduction is used to improve the noise reduction effect, thereby improving the noise reduction effect while reducing stimulation to the eardrum.

[0055] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A noise reduction device for earplugs, characterized in that, include: A housing (110) having a communicating channel inside, an inlet hole (1141) communicating with the channel is provided at the end of the housing (110) away from the user's ear canal, and an outlet hole (1131) communicating with the channel is provided at the end of the housing (110) near the user's ear canal; and Noise reduction components, wherein at least two noise reduction components are provided and disposed within the channel.

2. The noise reduction device according to claim 1, characterized in that, The channel is designed with a winding layout.

3. The noise reduction device according to claim 2, characterized in that, The housing (110) includes: The main body (111) has an opening at one end; An inner ring wall (112) is disposed within the main body (111). The inner ring wall (112) blocks the end of the main body (111) away from the opening and the periphery defined by the inner ring wall (112). A distance is left between the end of the inner ring wall (112) near the opening and the opening. A first cavity (a) is formed between the main body (111) and the inner ring wall (112), and a second cavity (b) is formed within the inner ring wall (112). A handle (113) is connected to the main body (111). A third cavity (c) is formed within the handle (113). One end of the third cavity (c) near the main body (111) communicates with the second cavity (b), and the other end away from the main body (111) has the sound outlet (1131). A cover plate (114) covers the opening of the main body (111), and the cover plate (114) is provided with the sound inlet hole (1141); 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, characterized in that, The main body (111) is disc-shaped, and the opening is located on one circular surface of the main body (111); the handle (113) is cylindrical, and one end is connected between the other circular surface and the periphery of the main body (111).

5. The noise reduction device according to claim 3, characterized in that, The noise reduction component includes: The first noise reduction component (120) is assembled inside the cover plate (114) to block the sound inlet hole (1141); A second noise reduction component (130) is fitted onto the inner ring wall (112) near the cover plate (114) to block the entrance of the second cavity (b); and The third noise reduction component (140) is assembled on the side of the handle (113) near the sound outlet (1131) and is used to block the sound outlet (1131).

6. The noise reduction device according to claim 5, characterized in that, The inner side of the cover plate (114) is provided with a limiting protrusion (1142) for the installation of the first noise reduction component (120), and the limiting protrusion (1142) is distributed around the sound inlet hole (1141).

7. The noise reduction device according to claim 5, characterized in that, The first noise reduction component (120), the second noise reduction component (130) and the third noise reduction component (140) are all sound insulation damping meshes; the mesh density of the first noise reduction component (120) and the second noise reduction component (130) is the same, and both are greater than the mesh density of the third noise reduction component (140).

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

9. A noise-canceling earplug, characterized in that, include: Wearing part (200) for insertion into the concha, the wearing part (200) has a mounting cavity, and the wearing part (200) has an insertion hole communicating with the mounting cavity on the side away from the concha; The noise reduction device (100) as described in any one of claims 1-8, wherein the noise reduction device (100) is assembled within the mounting cavity, and the inlet port (1141) of the noise reduction device (100) faces the insertion hole, and the outlet port (1131) of the noise reduction device (100) faces the ear canal; and An ear cap (300) is fitted onto the side of the wearing part (200) away from the insertion hole and is used to insert into the ear canal.

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