Noise reduction earphone

Abstract

The utility model provides a noise reduction earphone, which comprises an earphone head and an earphone handle, the earphone head and the earphone handle are wrapped by a protective shell, an accommodating cavity is arranged in the earphone handle, and a loudspeaker-microphone integrated element is arranged in the accommodating cavity. The loudspeaker-microphone integrated element comprises a shell, and a noise receiving microphone, a noise processing module, a sound loudspeaker and a noise reduction loudspeaker which are arranged in the shell, the surface of the shell is wrapped with an annular sealing gasket, the end part of the earphone handle is provided with a placing hole, and one surface, close to the placing hole, of the shell is provided with a pressing assembly; the upper end and the lower end of the annular sealing gasket abut against the inner wall of the protection shell and the abutting assembly correspondingly, a flowing space is formed between the annular sealing gasket and the inner wall of the protection shell, and a flow guiding inlet structure and a flow guiding outlet structure which are oppositely arranged are formed in the positions, close to the flowing space, of the protection shell in a penetrating mode. According to the utility model, sound and wind noise can be better received and released, and the noise reduction effect of the earphone is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of earphone devices, in particular to a noise reduction earphone. Background Art

[0002] Nowadays, we often live in environments with varying degrees of noise. Noise is generally considered to be the sound that affects our work, study, and rest. Noise can affect our mood, thinking, and conversation, and even pose a threat to our ear health. Medical research shows that people who work in environments with noise levels above 90 decibels for long periods of time are very likely to develop tinnitus or deafness. Therefore, noise-canceling headphones can help prevent ear problems in our daily lives while also improving the user experience.

[0003] In the existing technology, noise-canceling headphones usually achieve active noise reduction through anti-sound wave technology. Specifically, the frequency of external noise is identified through a noise-receiving microphone, and sound waves with the opposite frequency of the noise are generated to offset the external noise, thereby achieving noise reduction. Currently, the noise-receiving microphone is located inside the headphone. For ease of installation, the device is usually placed close to the inner wall of the headphone. This will cause the noise from the wind flow to not be released well, and the wind noise reduction effect is poor in the high-frequency part. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a noise-canceling headset, aiming to solve the technical problem in the existing technology that the noise receiving microphone is arranged inside the headset. In order to facilitate installation, the device is usually placed close to the inner wall of the headset, which will cause the noise from the wind flow to be not well released, and thus the wind noise reduction effect is poor in the high-frequency part.

[0005] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] A noise-canceling headset comprises an earphone head and an earphone handle integrally formed with the earphone head, the earphone head and the earphone handle are both wrapped by a protective shell, a accommodating cavity is provided inside the earphone handle, a speaker-microphone integrated component is provided in the accommodating cavity, the speaker-microphone integrated component comprises a shell, a noise receiving microphone arranged in the shell, a noise processing module, a sound speaker, and a noise-canceling speaker, the surface of the shell is wrapped with an annular sealing gasket, the end of the earphone handle is provided with a placement hole, and a side of the shell close to the placement hole is provided with a pressing component, the upper and lower ends of the annular sealing gasket respectively rest on the inner wall of the protective shell and the pressing component, a flow space is formed between the annular sealing gasket and the inner wall of the protective shell, and a relatively arranged flow guide entry structure and a flow guide discharge structure are penetrated through the protective shell near the flow space, and the noise receiving microphone is located on a side close to the flow guide entry structure.

[0007] According to one aspect of the above technical solution, the flow-guiding entry structure includes a first arc-shaped through hole opened on the outer wall of the protective shell, and a first connecting hole connecting the first arc-shaped through hole and the flow space, and the first arc-shaped through hole bends from the outer wall of the protective shell to the inner wall of the protective shell.

[0008] According to one aspect of the above technical solution, the diversion and discharge structure includes a second arc-shaped through hole opened on the inner wall of the protective shell, and a second connecting hole connecting the second arc-shaped through hole and the external environment, and the second arc-shaped through hole bends from the inner wall of the protective shell to the outer wall of the protective shell.

[0009] According to one aspect of the above technical solution, a plurality of the first connection holes and a plurality of the second connection holes are provided, wherein the plurality of the first connection holes are arranged at equal intervals, and the plurality of the second connection holes are arranged at equal intervals.

[0010] According to one aspect of the above technical solution, the first connecting hole and the second arc-shaped through hole are located at different horizontal heights.

[0011] According to one aspect of the above technical solution, the pressing assembly includes a rotary cover threadedly connected to the protective shell at the placement hole, a top rod fixed to the rotary cover near one end of the outer shell, and a top block located on the top rod near one end of the outer shell.

[0012] According to one aspect of the above technical solution, the bottom of the top block is recessed to form a placement groove, and the top rod is rotatably arranged in the placement groove.

[0013] According to one aspect of the above technical solution, a circular sealing gasket is provided between the top block and the annular sealing gasket.

[0014] According to one aspect of the above technical solution, a sound transmission channel is provided inside the earphone head, the sound transmission channel is connected to the external environment, and the sound speaker and the noise speaker are both connected to the sound transmission channel.

[0015] According to one aspect of the above technical solution, the outer cover of the earphone head is provided with a silicone earplug.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By arranging a loudspeaker-microphone integrated component inside the accommodating cavity, including an annular sealing gasket on the outer shell, and then arranging a pressing assembly under the outer shell, the outer shell can be pushed from the placement hole into the accommodating cavity through the pressing assembly until it rests on the inner wall of the protective shell. The annular sealing gasket will slide along the inner wall of the protective shell, effectively preventing the loudspeaker-microphone integrated component from accidentally hitting the inner wall of the protective shell and causing damage to the component. At the same time, a flow space for sound and wind to flow is formed between the annular sealing gasket and the inner wall of the protective shell; by providing a relatively arranged flow guide entry structure and a flow guide discharge structure through the protective shell near the flow space, wherein the noise receiving microphone is located on the side close to the flow guide entry structure The diversion entry structure can guide the sound and wind into the flow space more smoothly through its own structural characteristics, so that the sound and wind noise will not be lost, and the noise receiving microphone can receive more complete external noise, thereby releasing more accurate anti-sound waves through the noise processing module, thereby improving the noise reduction effect. Since the annular sealing gasket is set to form a flow space, the sound and wind noise can flow into the diversion discharge structure more smoothly through the flow space, and then the diversion discharge structure can guide the sound and wind out of the flow space into the external environment more smoothly through its own structural characteristics, thereby preventing the sound and wind noise from circulating in the flow space and the generated noise affecting the sound released by the sound speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the noise-canceling headphones in the first embodiment of the present invention;

[0019] Figure 2 for Figure 1 Enlarged view of part A;

[0020] Figure 3 for Figure 1 Schematic diagram of the structure at the middle top block;

[0021] Figure 4 for Figure 1 Schematic diagram of the structure of the middle screw cap;

[0022] Description of main component symbols:

[0023]

[0024]

[0025] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0026] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] See also Figures 1 to 4, shown is a noise-canceling headset in the first embodiment of the present invention, comprising an earphone head 61 and an earphone handle 62 integrally formed with the earphone head 61, the earphone head 61 and the earphone handle 62 are both wrapped by a protective shell 1, an accommodating cavity 7 is provided inside the earphone handle 62, a speaker-microphone integrated component 2 is provided in the accommodating cavity 7, the speaker-microphone integrated component 2 comprises a shell, a noise receiving microphone arranged in the shell, a noise processing module, a sound speaker, and a noise-canceling speaker, an annular sealing gasket 22 is wrapped around the surface of the shell, an end of the earphone handle 62 is provided with a placement hole, a side of the shell near the placement hole is provided with a pressing component 8, the upper and lower ends of the annular sealing gasket 22 respectively abut against the inner wall of the protective shell 1 and the pressing component 8, a flow space 21 is formed between the annular sealing gasket 22 and the inner wall of the protective shell 1, a position of the protective shell 1 near the flow space 21 is penetrated by a relatively arranged flow guide inlet structure 3 and a flow guide outlet structure 4, and the noise receiving microphone is located on a side near the flow guide inlet structure 3.

[0030] It can be understood that the present invention arranges a loudspeaker-microphone integrated component 2 inside the accommodating cavity 7, includes an annular sealing gasket 22 on the outer shell, and then arranges a pressing component 8 under the outer shell. The outer shell can be pushed from the placement hole into the accommodating cavity 7 through the pressing component 8 until it rests on the inner wall of the protective shell 1. The annular sealing gasket 22 will slide along the inner wall of the protective shell 1, effectively preventing the loudspeaker-microphone integrated component 2 from accidentally hitting the inner wall of the protective shell 1 and causing damage to the component. At the same time, a flow space 21 for sound and wind to flow is formed between the annular sealing gasket 22 and the inner wall of the protective shell 1; a relatively arranged flow guide inlet structure 3 and a flow guide outlet structure 4 are provided through the protective shell 1 near the flow space 21, wherein the noise receiving microphone is located near On one side of the diversion entrance structure 3, the diversion entrance structure 3 can guide the sound and wind more smoothly into the flow space 21 through its own structural characteristics, so that the sound and wind noise will not be lost, and the noise receiving microphone can receive more complete external noise, thereby releasing more accurate anti-sound waves through the noise processing module, thereby improving the noise reduction effect. Since the annular sealing gasket 22 is set to form the flow space 21, the sound and wind noise can flow more smoothly into the diversion discharge structure 4 through the flow space 21, and then the diversion discharge structure 4 can use its own structural characteristics to guide the sound and wind more smoothly out of the flow space 21 into the external environment, thereby preventing the sound and wind noise from circulating in the flow space 21 and the generated noise affecting the sound released by the sound speaker.

[0031] Specifically, in this embodiment, the diversion entry structure 3 includes a first arc-shaped through hole 31 opened on the outer wall of the protective shell 1, and a first connecting hole 32 connecting the first arc-shaped through hole 31 and the flow space 21, and the first arc-shaped through hole 31 bends from the outer wall of the protective shell 1 to the inner wall of the protective shell 1; the diversion discharge structure 4 includes a second arc-shaped through hole 41 opened on the inner wall of the protective shell 1, and a second connecting hole 41 connecting the second arc-shaped through hole 41 and the external environment, and the second arc-shaped through hole 41 bends from the inner wall of the protective shell 1 to the outer wall of the protective shell 1; the first connecting hole 32 and the second connecting hole 41 are both provided with a plurality, and the plurality of first connecting holes 32 are arranged at equal distances, and the plurality of second connecting holes 41 are arranged at equal distances.

[0032] It can be understood that the existing guide structure is a through hole arranged horizontally for sound to enter. When the sound enters, it will be mixed with wind sound. The wind sound will collide with the through hole arranged horizontally to generate new noise. Therefore, the utility model is pre-arranged with a first arc-shaped through hole 31, which can make the sound and wind more smoothly introduced into the first arc-shaped through hole 31. The arc shape prevents unnecessary collisions, avoids the generation of new noise, and avoids the loss of noise during collision, resulting in the noise receiving microphone being unable to correctly receive the noise. Then, the first arc-shaped through hole 31 is connected by arranging multiple first connecting holes 32. The sound and wind inside are introduced into the flow space 21. Since the noise receiving microphone is arranged opposite to the first connecting hole 32, it can better receive all noises, and provide good preconditions for the subsequent generation of corresponding anti-sound waves. After receiving the noise, the sound and wind will flow into the second arc-shaped through hole 41 and the second connecting hole 41 through the flow space 21. The principles of the second arc-shaped through hole 41 and the second connecting hole 41 are consistent with those of the first arc-shaped through hole 31 and the first connecting hole 32. They are all for more smoothly exporting the noise in the flow space 21 to avoid staying in the flow space 21 for a long time and causing new noise.

[0033] Preferably, the first connecting hole 32 and the second arc-shaped through hole 41 are located at different horizontal heights.

[0034] It can be understood that since the flow space 21 is circular, the transmission path of sound and wind will flow in a spiral around the shell, so setting the first connecting hole 32 and the second arc-shaped through hole 41 at different horizontal heights can better meet the aerodynamic requirements.

[0035] Furthermore, the pressing assembly 8 includes a screw cap 81 threadedly connected to the protective shell 1 at the placement hole, a push rod 82 fixed to the screw cap 81 near one end of the outer shell, and a top block 5 located on the push rod 82 near one end of the outer shell; the bottom of the top block 5 is recessed to form a placement groove 51, and the push rod 82 is rotatably arranged in the placement groove 51; a circular sealing gasket 6 is provided between the top block 5 and the annular sealing gasket 22.

[0036] It can be understood that in order to better fix the speaker-microphone integrated component 2 in the accommodating cavity 7 during installation, the speaker-microphone integrated component 2, the circular sealing gasket 6, and the top block 5 can be placed in sequence from the inside to the outside, and then the screw cover 81 and the top rod 82 on the screw cover 81 are inserted into the placement groove 51, and the speaker-microphone integrated component 2, the circular sealing gasket 6, and the top block 5 are inserted into the earphone handle 62 through the top rod 82. When the screw cover 81 reaches the placement hole, the screw cover 81 is rotated to allow the top rod 82 to push the speaker-microphone integrated component 2 a little deeper inward, thereby squeezing the speaker-microphone integrated component 2 to be fixed in the accommodating cavity 7.

[0037] Furthermore, a sound transmission channel 10 is provided inside the earphone head 61, and the sound transmission channel 10 is connected to the external environment. The sound speaker and the noise speaker are both connected to the sound transmission channel 10; the earphone head 61 is externally covered with a silicone earplug 9.

[0038] In summary, the noise-canceling earphones in the above embodiments of the present invention, by arranging a speaker-microphone integrated component inside the accommodating cavity, and including an annular sealing gasket on the shell, and then arranging a pressing component under the shell, can push the shell from the placement hole into the accommodating cavity through the pressing component until it rests on the inner wall of the protective shell, and the annular sealing gasket will slide along the inner wall of the protective shell, effectively preventing the speaker-microphone integrated component from accidentally hitting the inner wall of the protective shell and causing damage to the component, and at the same time, a flow space for sound and wind to flow is formed between the annular sealing gasket and the inner wall of the protective shell; by providing relatively arranged flow guide entry structure and flow guide discharge structure through the protective shell near the flow space, wherein the noise receiving microphone is located near On the side of the diversion entrance structure, the diversion entrance structure can guide the sound and wind more smoothly into the flow space through its own structural characteristics, so that the sound and wind noise will not be lost, and the noise receiving microphone can receive more complete external noise, thereby releasing more accurate anti-sound waves through the noise processing module, thereby improving the noise reduction effect. Since the annular sealing gasket is set to form a flow space, the sound and wind noise can flow into the diversion discharge structure more smoothly through the flow space, and then the diversion discharge structure can guide the sound and wind more smoothly out of the flow space into the external environment through its own structural characteristics, thereby preventing the sound and wind noise from circulating in the flow space and the generated noise affecting the sound released by the sound speaker.

[0039] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0040] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A noise-canceling headset, characterized in that: It includes an earphone head and an earphone handle integrally formed with the earphone head, the earphone head and the earphone handle are both wrapped by a protective shell, the earphone handle is provided with a accommodating cavity, the accommodating cavity is provided with a speaker-microphone integrated component, the speaker-microphone integrated component includes a shell, a noise receiving microphone, a noise processing module, a sound speaker, and a noise reduction speaker arranged in the shell, the surface of the shell is wrapped with an annular sealing gasket, the end of the earphone handle is provided with a placement hole, and the side of the shell close to the placement hole is provided with a pressing component, the upper and lower ends of the annular sealing gasket respectively rest on the inner wall of the protective shell and the pressing component, a flow space is formed between the annular sealing gasket and the inner wall of the protective shell, the protective shell close to the flow space is penetrated by a relatively arranged flow guide entry structure and a flow guide discharge structure, and the noise receiving microphone is located on a side close to the flow guide entry structure.

2. The noise-canceling headphones according to claim 1, wherein: The flow guide inlet structure includes a first arc-shaped through hole opened on the outer wall of the protective shell, and a first connecting hole connecting the first arc-shaped through hole and the flow space, and the first arc-shaped through hole bends from the outer wall of the protective shell to the inner wall of the protective shell.

3. The noise-canceling headphones according to claim 2, wherein: The diversion and discharge structure includes a second arc-shaped through hole opened on the inner wall of the protective shell, and a second connecting hole connecting the second arc-shaped through hole and the external environment, and the second arc-shaped through hole bends from the inner wall of the protective shell to the outer wall of the protective shell.

4. The noise-canceling headphones according to claim 3, wherein: There are multiple first connection holes and multiple second connection holes, and the multiple first connection holes are arranged at equal intervals, and the multiple second connection holes are arranged at equal intervals.

5. The noise-canceling headphones according to claim 3, wherein: The first connecting hole and the second arc-shaped through hole are located at different horizontal heights.

6. The noise-canceling headphones according to claim 1, wherein: The pressing assembly includes a rotary cover threadedly connected to the protective shell at the placement hole, a push rod fixed to one end of the rotary cover close to the shell, and a push block located on the end of the push rod close to the shell.

7. The noise-canceling headphones according to claim 6, wherein: The bottom of the top block is recessed to form a placement groove, and the top rod is rotatably arranged in the placement groove.

8. The noise-canceling headphones according to claim 6, wherein: A circular sealing gasket is provided between the top block and the annular sealing gasket.

9. The noise-canceling headphones according to claim 1, wherein: A sound transmission channel is provided inside the earphone head, the sound transmission channel is communicated with the external environment, and the sound speaker and the noise speaker are both connected to the sound transmission channel.

10. The noise-canceling earphone according to claim 1, wherein: The outer cover of the earphone head is provided with a silicone earplug.

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