Noise reduction earplug capable of switching noise reduction degree

Abstract

The utility model discloses a noise reduction earplug capable of switching the noise reduction degree. The noise reduction earplug comprises a shell, an ear cap and a plurality of groups of noise reduction modules which are respectively provided with sound transmission channels with different lengths and shapes, the ear cap is sleeved on the shell; a group of noise reduction modules are detachably mounted in the shell, and each noise reduction module comprises a first tuning net, a second tuning net, a noise reduction upper shell and a noise reduction lower shell; a sound transmission channel is arranged in the noise reduction upper shell; the noise reduction upper shell is arranged in the noise reduction lower shell; the first tuning net is installed on the noise reduction upper shell, the second tuning net is installed on the noise reduction lower shell, and the sound transmission channel is located between the first tuning net and the second tuning net. The shell is provided with a sound transmission hole; the sound transmission hole is communicated with the sound transmission channel. The noise reduction earplug realizes noise reduction of different degrees, so that a user can adjust the noise reduction degree according to personal preferences or environmental changes, and the diversity and convenience of use scenes of the noise reduction earplug are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of noise-canceling earplug technology, and in particular to a noise-canceling earplug with switchable noise-canceling levels. Background Technology

[0002] Most noise-canceling earbuds on the market typically offer only one noise-canceling mode, lacking multiple options for users. In different noise environments, a fixed noise-canceling mode may not effectively handle various noise types, leading to discomfort or poor performance in certain situations. For example, the required level of noise cancellation differs in a noisy city, a quiet office, or an airplane flight, and users cannot adjust this according to personal preference or environmental changes, limiting the versatility and convenience of using noise-canceling earbuds. Prolonged use of a single noise-canceling mode can also cause auditory fatigue, especially in environments requiring flexible adjustment. Utility Model Content

[0003] In order to enrich the product types of noise-canceling earplugs and improve the diversity and convenience of their use scenarios, this utility model provides a noise-canceling earplug with switchable noise reduction levels.

[0004] This utility model provides a noise-canceling earplug with switchable noise reduction levels, including a shell, an ear cap, and multiple noise reduction modules with different lengths and shapes of sound transmission channels;

[0005] The ear caps are fitted onto the outer shell;

[0006] A noise reduction module is detachably installed inside the housing, wherein:

[0007] Each of the noise reduction modules includes a first tuning mesh, a second tuning mesh, an upper noise reduction housing, and a lower noise reduction housing;

[0008] The noise-reducing upper housing has a sound transmission channel;

[0009] The noise-reducing upper housing is disposed inside the noise-reducing lower housing;

[0010] The first tuning mesh is installed on the upper noise-reducing housing, the second tuning mesh is installed on the lower noise-reducing housing, and the sound transmission channel is located between the first tuning mesh and the second tuning mesh;

[0011] The outer casing is provided with a sound transmission hole;

[0012] The sound transmission hole is connected to the sound transmission channel.

[0013] In one or more alternative embodiments, the number of meshes in the first tuning mesh of each of the noise reduction modules is different;

[0014] The number of meshes in the second tuning mesh of each noise reduction module is different.

[0015] In one or more optional embodiments, the noise-reducing upper housing is provided with a sound inlet hole communicating with the sound transmission channel;

[0016] The noise-reducing lower housing is provided with a sound outlet;

[0017] The first tuning mesh is installed at the sound inlet, and the second tuning mesh is installed at the sound outlet.

[0018] In one or more alternative embodiments, the first tuning mesh is adhered to the sound inlet hole;

[0019] The second tuning mesh is adhered to the sound outlet.

[0020] In one or more alternative embodiments, each of the noise-reducing upper housings is provided with a model identifier.

[0021] In one or more alternative embodiments, the noise-canceling earplugs with switchable noise cancellation levels also include a decorative shell;

[0022] The decorative shell is disposed on the outside of the noise reduction upper shell to enclose the noise reduction module.

[0023] In one or more alternative embodiments, the decorative shell is bonded to the noise-reducing upper shell.

[0024] In one or more alternative embodiments, the noise-reducing upper housing is welded to the noise-reducing lower housing.

[0025] In one or more alternative embodiments, the housing is provided with an annular groove;

[0026] The ear cap is fitted onto the annular groove.

[0027] In one or more alternative embodiments, the ear cap is a silicone ear cap.

[0028] The beneficial effects of the above-mentioned technical solutions provided by the embodiments of this utility model include at least the following:

[0029] The noise-canceling earplugs with switchable noise reduction depth provided in this embodiment of the invention attenuate external sounds through a first tuning mesh, a second attenuation through the sound transmission channel, and a third attenuation through a second tuning mesh, thereby achieving non-completely sealed noise reduction. This achieves noise reduction while ensuring ear canal comfort and effectively preventing ear damage caused by excessive ear pressure. By employing noise-canceling upper shells with sound transmission channels of different lengths and shapes, and combining them with other components, different models of noise-canceling modules are obtained. By disassembling and replacing different models of noise-canceling modules, different levels of noise reduction are achieved, allowing users to adjust the noise reduction level according to personal preference or environmental changes. This enhances the versatility and convenience of using the noise-canceling earplugs and effectively avoids auditory fatigue caused by a single noise-canceling mode.

[0030] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0031] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0032] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0033] Figure 1 An exploded schematic diagram of a noise-canceling earplug with switchable noise reduction levels provided in an embodiment of this utility model;

[0034] Figure 2 A schematic diagram of the external structure of a noise-canceling earplug with switchable noise reduction levels provided in an embodiment of this utility model;

[0035] Figure 3 The diagram shows the structure of different models of noise-reducing upper housings provided in the embodiments of this utility model.

[0036] Figure label:

[0037] 1. Decorative shell; 2. Noise-reducing upper shell; 21. Sound transmission channel; 22. Sound inlet; 23. Model identification; 3. First tuning mesh; 4. Noise-reducing lower shell; 41. Sound outlet; 5. Second tuning mesh; 6. Outer shell; 61. Annular groove; 62. Sound transmission hole; 7. Ear cap. Detailed Implementation

[0038] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "far," "near," "front," and "rear," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The inventors discovered that fixed noise cancellation modes may not be effective in dealing with various types of noise, and users cannot adjust them according to personal preferences or changes in the environment, which limits the diversity and convenience of noise-canceling earbuds in various usage scenarios.

[0042] Based on this, this utility model embodiment provides a noise-canceling earplug with switchable noise reduction levels, see reference. Figure 1 and Figure 2 As shown, it includes a housing 6, an ear cap 7, and multiple noise reduction modules with different lengths and shapes of sound transmission channels 21;

[0043] The ear cap 7 is fitted onto the outer shell 6;

[0044] A noise reduction module is detachably installed inside the outer casing 6, wherein:

[0045] Each of the noise reduction modules includes a first tuning mesh 3, a second tuning mesh 5, a noise reduction upper housing 2, and a noise reduction lower housing 4;

[0046] The noise-reducing upper housing 2 has a sound transmission channel 21 inside;

[0047] The noise-reducing upper housing 2 is disposed inside the noise-reducing lower housing 4;

[0048] The first tuning mesh 3 is installed on the noise reduction upper housing 2, the second tuning mesh 5 is installed on the noise reduction lower housing 4, and the sound transmission channel 21 is located between the first tuning mesh 3 and the second tuning mesh 5;

[0049] The outer shell 6 is provided with a sound transmission hole 62;

[0050] The sound transmission hole 62 is connected to the sound transmission channel 21.

[0051] In this embodiment, the noise-canceling earbuds with switchable noise reduction levels include multiple noise-canceling modules of different models, as shown in the reference. Figures 1-3 As shown, different noise-canceling modules have different lengths and shapes of sound transmission channels 21. Any noise-canceling module can be detachably installed inside the housing 6, thereby switching the noise reduction level by replacing different models of noise-canceling modules. When any noise-canceling module is detachably installed inside the housing 6, the sound transmission channel 21 of the noise-canceling module is connected to the sound transmission hole 62 of the housing 6, so that external sounds can enter the ear after being processed by the noise-canceling module, avoiding complete blockage of the ear canal. The shape of the ear cap 7 can fit the ear canal entrance to ensure the stability of the noise-canceling earplug.

[0052] The noise-canceling earplugs with switchable noise reduction depth provided in this embodiment of the invention attenuate external sounds through a first tuning mesh 3, a second attenuation through the sound entering the earplugs traveling within the sound transmission channel 21, and a third attenuation through a second tuning mesh 5, thereby achieving non-completely sealed noise reduction. This achieves noise reduction while ensuring ear canal comfort and effectively preventing ear damage caused by excessive ear pressure. By employing noise-canceling upper shells 2 with sound transmission channels 21 of different lengths and shapes, and combining them with other components, different models of noise-canceling modules are obtained. By disassembling and replacing different noise-canceling modules, different levels of noise reduction are achieved, allowing users to adjust the noise reduction level according to personal preferences or environmental changes. This enhances the versatility and convenience of using the noise-canceling earplugs and effectively avoids auditory fatigue caused by a single noise-canceling mode.

[0053] In this embodiment, refer to Figures 1-3As shown, after the noise-canceling upper housing 2 is installed inside the noise-canceling lower housing 4, the side of the upper housing 2 with the sound transmission channel 21 is tightly attached to the lower housing 4, thus sealing the side of the sound transmission channel 21. This ensures that sound can only be transmitted from the entrance to the exit of the sound transmission channel 21, achieving sound reduction during transmission within the sound transmission channel 21. The noise-canceling upper housing 2 is provided with a sound inlet 22 communicating with the outside world. The sound inlet 22 is connected to the sound transmission channel 21. A first tuning mesh 3 is installed in the sound inlet 22 to perform the first sound attenuation when external sound enters the noise-canceling earplug. The noise-canceling lower housing 4 is provided with a sound outlet 41 communicating with both the sound transmission channel 21 and the sound transmission hole 62. A second tuning mesh 5 is installed in the sound outlet to perform a second sound attenuation when sound exits from the sound transmission channel 21, ultimately achieving noise reduction.

[0054] In an optional implementation, refer to Figure 3 As shown, the sound transmission channel 21 inside any noise-reducing upper housing 2 includes a main channel and several branch channels. The main channel is curved overall, with at least three bending points to ensure sufficient length and a reasonable distribution within the noise-reducing upper housing 2. The entrance to the main channel is also the entrance to the sound transmission channel 21, connecting to the sound inlet 22; the exit of the main channel is also the exit of the sound transmission channel 21, connecting to the sound outlet 41. Several branch channels are connected to different parts of the main channel to increase the complexity of the sound transmission channel 21, thereby extending the sound transmission distance and making the path more complex, effectively attenuating the sound. The shape of the branch channels can be arc-shaped, straight, circular, or rectangular, etc., and their specific length and shape can be reasonably set according to actual needs. Setting different numbers and shapes of branch channels helps to achieve graded noise reduction for different noise reduction modules.

[0055] Furthermore, different noise-canceling modules can employ first tuning mesh 3 with different mesh counts and second tuning mesh 5 with different mesh counts. Through the coordination of the first tuning mesh 3, second tuning mesh 5, and sound transmission channel 21, graded noise reduction of the noise-canceling module can be achieved. For example, a noise-canceling module with a lower noise reduction level uses a first tuning mesh 3 and second tuning mesh 5 with a larger mesh count, and a noise-canceling upper shell 2 with a shorter sound transmission channel 21 and fewer bends; while a noise-canceling module with a higher noise reduction level can use a first tuning mesh 3 and second tuning mesh 5 with a smaller mesh count, and a noise-canceling upper shell 2 with a longer sound transmission channel 21 and more bends. By using different first tuning mesh 3, different second tuning mesh 5, and noise-canceling upper shells 2 with different sound transmission channels 21, noise-canceling modules with different noise reduction levels are obtained. This more effectively allows users to switch noise reduction levels by changing the noise-canceling module, enabling them to adjust the noise reduction level according to personal preferences or environmental changes, thus enhancing the diversity and convenience of noise-canceling earbud usage scenarios.

[0056] In an optional embodiment, the first tuning mesh 3 is installed on the sound inlet 22 by adhesive bonding, and similarly, the second tuning mesh 5 is installed on the sound outlet 41 by adhesive bonding, thereby ensuring the stability of the first tuning mesh 3 and the second tuning mesh 5 and preventing the first tuning mesh 3 and the second tuning mesh 5 from falling off and being damaged when replacing the noise reduction module.

[0057] In an optional embodiment, the noise-reducing upper housing 2 and the noise-reducing lower housing 4 are fixedly connected by welding, for example, by ultrasonic welding, so as to ensure the strength and reliability of the noise-reducing module and avoid damage to the noise-reducing module after long-term use or multiple replacements.

[0058] In an optional implementation, refer to Figure 1 and Figure 2 As shown, the noise-canceling earbuds with switchable noise cancellation depth also include a decorative shell 1, which is disposed on the outside of the noise-canceling upper shell 2 to enclose the noise-canceling module. The decorative shell 1 has a through hole that communicates with the sound inlet 22 of the noise-canceling upper shell 2, ensuring that external sounds can enter the noise-canceling module. The decorative shell 1 and the noise-canceling upper shell 2 can be connected by adhesive dispensing.

[0059] In an optional implementation, refer to Figure 3 As shown, each of the noise-reducing upper housings 2 has a model designation 23 on the side away from the noise-reducing lower housing 4. Different noise-reducing modules with different noise reduction levels have different designations on their upper housings 2, allowing users to accurately select the appropriate noise-reducing module for installation based on their needs. Specifically, the model designation 23 can be consecutive numbers or letters, such as "1, 2, 3, 4", or "A, B, C, D", so that the noise reduction levels can be sorted from high to low for user convenience. Taking a noise-reducing module with four different noise reduction levels as an example, refer to... Figure 3 As shown, there are four noise-reducing upper housings 2 with models A, B, C and D respectively. The top row has four noise-reducing upper housings 2 with model identification 23 on one side, and the bottom row has four noise-reducing upper housings 2 with sound transmission channels 21 on the other side.

[0060] In an optional implementation, refer to Figure 1 and Figure 2 As shown, the outer shell 6 is provided with an annular groove 61, and the ear cap 7 is fitted onto the annular groove 61, which can prevent the ear cap 7 from separating from the outer shell 6 under external force, thus ensuring the wearing stability of the noise-canceling earplug.

[0061] In an optional embodiment, the ear cap 7 is a flexible silicone ear cap 7 to ensure comfort when inserted into the ear canal. The outer shell 6 can also be made of flexible silicone material, so that the outer shell 6 will not generate excessive pressure when in contact with the auricle or the surrounding area, ensuring user comfort.

[0062] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. This disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model is also intended to include these modifications and variations.

Claims

1. A noise-canceling earplug with switchable noise reduction levels, characterized in that, It includes a shell, ear caps, and multiple noise reduction modules with different lengths and shapes of sound transmission channels; The ear caps are fitted onto the outer shell; A noise reduction module is detachably installed inside the housing, wherein: Each of the noise reduction modules includes a first tuning mesh, a second tuning mesh, an upper noise reduction housing, and a lower noise reduction housing; The noise-reducing upper housing has a sound transmission channel; The noise-reducing upper housing is disposed inside the noise-reducing lower housing; The first tuning mesh is installed on the upper noise-reducing housing, the second tuning mesh is installed on the lower noise-reducing housing, and the sound transmission channel is located between the first tuning mesh and the second tuning mesh; The outer casing is provided with a sound transmission hole; The sound transmission hole is connected to the sound transmission channel.

2. The noise-canceling earplug with switchable noise reduction levels according to claim 1, characterized in that, The number of meshes in the first tuning mesh of each noise reduction module is different; The number of meshes in the second tuning mesh of each noise reduction module is different.

3. The noise-canceling earplug with switchable noise reduction levels according to claim 1, characterized in that, The noise-reducing upper housing is provided with a sound inlet hole that communicates with the sound transmission channel; The noise-reducing lower housing is provided with a sound outlet; The first tuning mesh is installed at the sound inlet, and the second tuning mesh is installed at the sound outlet.

4. The noise-canceling earplug with switchable noise reduction levels according to claim 3, characterized in that, The first tuning mesh is adhered to the sound inlet hole; The second tuning mesh is adhered to the sound outlet.

5. The noise-canceling earplug with switchable noise reduction levels according to claim 1, characterized in that, Each of the noise-reducing upper housings is marked with a model designation.

6. The noise-canceling earplug with switchable noise reduction levels according to claim 1, characterized in that, It also includes decorative cases; The decorative shell is disposed on the outside of the noise reduction upper shell to enclose the noise reduction module.

7. The noise-canceling earplug with switchable noise reduction levels according to claim 6, characterized in that, The decorative shell is bonded to the noise-reducing upper shell.

8. The noise-canceling earplug with switchable noise reduction levels according to claim 1, characterized in that, The noise-reducing upper housing is welded to the noise-reducing lower housing.

9. The noise-canceling earplug with switchable noise reduction levels according to claim 1, characterized in that, The outer shell is provided with an annular groove; The ear cap is fitted onto the annular groove.

10. The noise-canceling earplug with switchable noise reduction levels according to claim 1, characterized in that, The ear caps are made of silicone.

Images