High-sound-quality noise reduction earphone

Abstract

The utility model discloses a high-quality noise reduction earphone, which comprises a shell, one end of the shell is provided with a sound outlet tube, and the end part of the sound outlet tube is provided with a sound outlet hole; the inner wall of the sound outlet tube is provided with a loudspeaker assembly and a feed-forward pickup assembly. The housing is also provided with a pickup channel structure and a control circuit board. The pickup channel structure comprises a first channel and a first pipeline. The pickup channel structure formed by the first channel and the first pipeline is used for directly collecting sound in the ear canal, the influence of sound filtering damping is prevented, and the first pipeline is arranged in the linear acoustic path design of the first pipeline in a linear acoustic path mode. The sound wave attenuation and the phase deviation are reduced, the influence of sound filtering damping is prevented, the pickup precision of the feed-forward pickup assembly on the sound in the ear canal is ensured, the subsequent noise reduction processing effect is improved, and the sound quality of the high-sound-quality noise reduction earphone is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of audio equipment, specifically to a high-quality noise-canceling headphone. Background Technology

[0002] Headphones (also known as earphones, head-sets, or earpieces) are a pair of transducers that receive electrical signals from a media player or receiver and convert them into audible sound waves using speakers placed close to the ears. Headphones can be detached from the media player and connected using only a plug, allowing for private listening without disturbing others. They can also isolate ambient noise, which is helpful for people using them in noisy environments such as recording studios, bars, while traveling, or during exercise.

[0003] To improve headphone quality, existing headphones all feature active noise cancellation. Current noise cancellation technology typically relies on a combination of feedforward and feedback microphones to eliminate noise and thus control the sound quality of the playback unit. These microphones are usually housed within the same cavity as the headphone speaker assembly to detect sound within the ear canal. However, existing headphone outputs have damping filters. Since the feedforward and feedback microphones share a channel with the speaker assembly, this damping weakens the sound pickup from the ear canal. High-frequency signals are significantly reduced, leading to decreased accuracy in sound pickup and affecting the subsequent noise cancellation process, ultimately impacting the headphone's sound quality. Utility Model Content

[0004] This utility model addresses the shortcomings of current technology by providing a high-quality noise-canceling headphone. It aims to solve the technical problem that existing high-quality noise-canceling headphones have poor accuracy in picking up sound within the ear canal, resulting in reduced sound quality.

[0005] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0006] A high-fidelity noise-canceling headphone includes a housing. One end of the housing has a sound outlet tube, and the end of the sound outlet tube has a sound outlet hole. The inner wall of the sound outlet tube is provided with a speaker assembly and a feedforward pickup assembly. The housing also includes a pickup channel structure and a control circuit board. The control circuit board is electrically connected to the speaker assembly and the feedforward pickup assembly. The feedforward pickup assembly is used to pick up sound within the ear canal, the speaker assembly is used for sound playback, and the control circuit board is used for noise reduction and control processing.

[0007] As a further improvement, the housing is provided with a first mounting part and a second mounting part. The first mounting part is disposed at the end of the sound tube, and the second mounting part is disposed on the side of the first mounting part. The speaker assembly is disposed in the first mounting part, and the feedforward pickup assembly is disposed in the second mounting part. A first groove is provided between the first mounting part and the second mounting part.

[0008] As a further improvement, the pickup channel structure includes a first channel and a first conduit. The first channel is disposed on the side of the sound tube and extends into the housing. The first conduit is disposed in the first groove. One end of the first conduit is connected to the end of the first channel, and the other end of the first conduit is connected to the feedforward pickup component.

[0009] As a further improvement, one end of the first channel is provided with a first through hole, which is used to collect sound in the ear canal; the other end of the first channel is provided with a connecting part, which is connected to the first pipe.

[0010] As a further improvement, the sound tube is also provided with a second channel, which is connected to the speaker assembly.

[0011] As a further improvement, the housing is also provided with a wire socket, which is electrically connected to the control circuit board.

[0012] Compared with the prior art, the above-mentioned technical solutions in the high-quality noise-canceling headphones provided by the embodiments of this utility model have at least one of the following technical effects:

[0013] This invention establishes a pickup channel structure consisting of the first channel and the first pipe for directly acquiring sound within the ear canal, preventing the influence of sound filtering damping. Furthermore, the first pipe employs a linear acoustic path design to reduce sound wave attenuation and phase shift, while also preventing the influence of sound filtering damping. This ensures the accuracy of the feedforward pickup component in acquiring sound within the ear canal, improves the effect of subsequent noise reduction processing, and enhances the sound quality of high-fidelity noise-canceling headphones. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0015] Figure 1 This is a schematic diagram of the overall structure of the high-fidelity noise-canceling headphones in this embodiment;

[0016] Figure 2 This is an exploded view of the high-fidelity noise-canceling headphones in this embodiment. Detailed Implementation

[0017] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0018] For examples, see the appendix. Figures 1-2 The high-fidelity noise-canceling headphones 1 include a housing 2, one end of which is provided with a sound outlet tube 3, and the end of the sound outlet tube 3 is provided with a sound outlet hole 4; the inner wall of the sound outlet tube 3 is provided with a speaker assembly 5 and a feedforward pickup assembly 6, the housing 2 is also provided with a pickup channel structure 7 and a control circuit board 8, the control circuit board 8 is electrically connected to the speaker assembly 5 and the feedforward pickup assembly 6, the feedforward pickup assembly 6 is used to pick up sound in the ear canal, the speaker assembly 5 is used for sound playback, and the control circuit board 8 is used for noise reduction processing and control processing; the speaker assembly 5 is a sound-generating unit.

[0019] The housing 2 is provided with a first mounting part 20 and a second mounting part 21. The first mounting part 20 is disposed at the end of the sound tube 3, and the second mounting part 21 is disposed on the side of the first mounting part 20. The speaker assembly 5 is disposed in the first mounting part 20, and the feedforward pickup assembly 6 is disposed in the second mounting part 21. A first groove 22 is provided between the first mounting part 20 and the second mounting part 21. The first mounting part 20, the second mounting part 21 and the first groove 22 are all used for component positioning and fixing.

[0020] The pickup channel structure 7 includes a first channel 70 and a first conduit 71. The first channel 70 is disposed beside the sound outlet tube 3 and extends into the housing 2. The first conduit 71 is disposed in the first groove 22. One end of the first conduit 71 is connected to the end of the first channel 70, and the other end of the first conduit 71 is connected to the feedforward pickup component 6. The pickup channel structure 7 is used to prevent the feedforward pickup component 6 from picking up weakened sound in the ear canal, ensuring the pickup accuracy of the feedforward pickup component 6, thereby ensuring the effect of subsequent noise reduction processing and improving the playback quality of the high-fidelity noise-canceling headphones 1.

[0021] One end of the first channel 70 is provided with a first through hole 700, which is used to collect sound in the ear canal; the other end of the first channel 70 is provided with a connecting part 701, which is connected to the first pipe 71.

[0022] The sound tube 3 is also provided with a second channel 30, which is connected to the speaker assembly 5 and serves as a sound playback channel.

[0023] The housing 2 is also provided with a wire socket 23, which is electrically connected to the control circuit board 8.

[0024] This invention establishes a pickup channel structure consisting of the first channel and the first pipe for directly acquiring sound within the ear canal, preventing the influence of sound filtering damping. Furthermore, the first pipe employs a linear acoustic path design to reduce sound wave attenuation and phase shift, while also preventing the influence of sound filtering damping. This ensures the accuracy of the feedforward pickup component in acquiring sound within the ear canal, improves the effect of subsequent noise reduction processing, and enhances the sound quality of high-fidelity noise-canceling headphones.

[0025] This utility model is not limited to the above-described embodiments. Other high-quality noise-canceling headphones obtained by using the same or similar structures or devices as the above-described embodiments of this utility model are all within the protection scope of this utility model.

Claims

1. A high-fidelity noise-canceling headphone, characterized in that: The high-fidelity noise-canceling headphones include a housing, one end of which has a sound outlet tube, and the end of which has a sound outlet hole; the inner wall of the sound outlet tube has a speaker assembly and a feedforward pickup assembly; the housing also has a pickup channel structure and a control circuit board; the control circuit board is electrically connected to the speaker assembly and the feedforward pickup assembly; the feedforward pickup assembly is used to pick up sound in the ear canal; the speaker assembly is used for sound playback; and the control circuit board is used for noise reduction processing and control processing. The pickup channel structure is disposed between the speaker assembly and the feedforward pickup assembly, and the pickup channel structure is used to improve the accuracy of the feedforward pickup assembly in receiving sound from the ear canal.

2. The high-fidelity noise-canceling headphones according to claim 1, characterized in that: The housing is provided with a first mounting part and a second mounting part. The first mounting part is disposed at the end of the sound tube, and the second mounting part is disposed on the side of the first mounting part. The speaker assembly is disposed in the first mounting part, and the feedforward pickup assembly is disposed in the second mounting part. A first groove is provided between the first mounting part and the second mounting part.

3. The high-fidelity noise-canceling headphones according to claim 2, characterized in that: The pickup channel structure includes a first channel and a first pipe. The first channel is disposed beside the sound tube and extends into the housing. The first pipe is disposed in the first groove. One end of the first pipe is connected to the end of the first channel, and the other end of the first pipe is connected to the feedforward pickup component.

4. The high-fidelity noise-canceling headphones according to claim 3, characterized in that: One end of the first channel is provided with a first through hole, which is used to collect sound in the ear canal; the other end of the first channel is provided with a connecting part, which is connected to the first pipe.

5. The high-fidelity noise-canceling headphones according to claim 4, characterized in that: The sound tube is also provided with a second channel, which is connected to the speaker assembly.

6. The high-fidelity noise-canceling headphones according to claim 5, characterized in that: The housing is also provided with a wire socket, which is electrically connected to the control circuit board.

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