CN210042133U

CN210042133U - Noise reduction earphone

Info

Publication number: CN210042133U
Application number: CN201921001938.XU
Authority: CN
Inventors: 刘家豪; 刘艳龙; 赵国阳
Original assignee: Weifang Goertek Electronics Co Ltd
Current assignee: Weifang Goertek Electronics Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-02-07
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a noise reduction earphone belongs to electroacoustic equipment technical field, which comprises a housin, the one end of casing is provided with a sound outlet tube, the tip of a sound outlet tube is equipped with the phonate hole, install the support in the sound outlet tube, the support is the tubular structure, install speaker and feedback microphone in the support, be provided with the intercommunication on the support feedback microphone with the phonate hole of phonate hole, the feedback microphone in this design can reduce the noise through the sound of phonate hole absorption human ear feedback to improve tone quality effect.

Description

Noise reduction earphone

Technical Field

The utility model belongs to the technical field of the electroacoustic equipment, concretely relates to earphone of making an uproar falls.

Background

The earphone is a device for transmitting audio signals, is widely applied, is often used in cooperation with terminal electronic devices such as mobile phones, computers, MP3 and the like, and along with the continuous development of scientific technology and electronic industry, people also put higher requirements on the performance of the earphone. In order to improve the tone quality, a feedback microphone is required to be arranged, namely, the feedback microphone absorbs the sound fed back by the ears when the earphone is worn, so that the purpose of reducing noise is achieved. However, the earphone has a small volume, and the microphone has a large volume, so that the earphone is difficult to place in the sound emitting tube, and the design of the feedback microphone is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the noise reduction earphone can reduce noise and improve tone quality.

In order to solve the technical problem, the technical scheme of the utility model is that:

the utility model provides a noise reduction earphone, includes the casing, the one end of casing is provided with a sound outlet, the tip of a sound outlet is equipped with the phonate hole, install the support in the sound outlet, the support is the tubular structure, install speaker and feedback microphone in the support, be provided with the intercommunication on the support feedback microphone with the phonate hole in phonate hole.

Furthermore, the loudspeaker is welded with a flexible circuit board, and the flexible circuit board is electrically connected with the feedback microphone and the main board.

Furthermore, the loudspeaker is arranged at one end, close to the sound outlet, of the support, and the feedforward microphone is arranged at one end, far away from the sound outlet, of the support.

Furthermore, one end, far away from the sound outlet hole, of the support is provided with a fixing groove, and the feedback microphone is pasted in the fixing groove.

Furthermore, the outside of support is provided with to go out the protruding location arch of sound tube direction, the inboard relevant position of sound tube is provided with the location boss.

Further, the positioning protrusion is disposed at an outer side of the fixing groove.

Furthermore, the outer side of the loudspeaker is provided with a positioning flange protruding towards the support, and a positioning groove is arranged at the corresponding position of the inner side of the support.

Further, the support and the sound outlet cylinder are fixedly connected through dispensing, sealing and fixing.

Further, the loudspeaker and the support are fixedly connected through dispensing.

Furthermore, the sound transmission hole is of a funnel-shaped structure, and the cross-sectional area of the sound transmission hole is gradually reduced from one end close to the sound outlet hole to one end close to the feedback microphone.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

because the utility model discloses a noise reduction earphone includes the casing, and the one end of casing is provided with a sound outlet section of thick bamboo, and the tip of a sound outlet section of thick bamboo is equipped with the sound hole, installs the support in a sound outlet section of thick bamboo, and the support is the tubular structure, installs speaker and feedback microphone in the support, is provided with the transaudient hole of intercommunication feedback microphone and sound hole on the support, and the feedback microphone absorbs the sound of people's ear feedback through the transaudient hole, noise reduction to improve tone quality effect.

Drawings

Fig. 1 is a schematic structural diagram of the noise reduction earphone of the present invention;

FIG. 2 is an enlarged schematic view of section A of FIG. 1;

fig. 3 is a schematic structural diagram of a support in the noise reduction earphone of the present invention;

fig. 4 is a schematic view of the assembly of the support, the speaker and the feedback microphone in the noise reduction earphone of the present invention;

in the figure, 10-shell, 11-sound outlet cylinder, 12-sound outlet hole, 13-positioning boss, 20-bracket, 21-sound transmission hole, 22-fixing groove, 23-positioning projection, 24-positioning groove, 30-loudspeaker, 31-positioning flange, 40-feedback microphone and 50-flexible circuit board.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

All directions referred to in the present specification are based on the drawings, and represent relative positional relationships only, and do not represent absolute positional relationships.

As shown in fig. 1, 3 and 4, the noise reduction earphone comprises a casing 10, a sound outlet tube 11 is arranged at one end of the casing 10, a sound outlet hole 12 is arranged at the end of the sound outlet tube 11, a support 20 is arranged in the sound outlet tube 11, the support 20 is of a tubular structure, a loudspeaker 30 and a feedback microphone 40 are arranged in the support 20, and a sound transmission hole 21 for communicating the feedback microphone 40 and the sound outlet hole 12 is arranged on the support 20. The feedback microphone 40 absorbs the sound fed back from the human ear through the sound transmission hole 21, and can reduce noise, thereby improving the sound quality effect.

As shown in fig. 1, 2 and 4, the speaker 30 is soldered with a flexible circuit board 50, the flexible circuit board 50 is electrically connected with the feedback microphone 40 and a main board, and the main board can send audio signals to the speaker 30 through the flexible circuit board 50 and supply power to the speaker 30 and the feedback microphone 40.

As shown collectively in fig. 1, 2, 3 and 4, the speaker 30 is mounted at an end of the support 20 near the sound outlet 12, and the feedforward microphone is mounted at an end of the support 20 remote from the sound outlet 12. The sound transmission hole 21 is of a funnel-shaped structure, the cross-sectional area of the sound transmission hole 21 is gradually reduced from one end close to the sound outlet hole 12 to one end close to the feedback microphone 40, and the cross-sectional area of the sound transmission hole 21 is of an arc-shaped structure, so that sound feedback is facilitated, and wind noise is prevented. The end of the support 20 away from the sound outlet 12 is provided with a fixing groove 22, and the feedback microphone 40 is adhered in the fixing groove 22.

As shown in fig. 2 and fig. 3, a positioning protrusion 23 protruding toward the sound outlet tube 11 is disposed on the outer side of the support 20, a positioning boss 13 is disposed at a corresponding position on the inner side of the sound outlet tube 11, and the positioning protrusion 23 and the positioning boss 13 cooperate to position the support 20. The positioning protrusion 23 is disposed outside the fixing groove 22, the positioning flange 31 protruding toward the support 20 is disposed outside the speaker 30, the positioning groove 24 is disposed at a corresponding position inside the support 20, and the positioning flange 31 and the positioning groove 24 are matched to position the speaker 30.

When mounting, firstly, the flexible circuit board 50 is welded with the loudspeaker 30 and the feedback microphone 40; secondly, the loudspeaker 30 is inserted into the sound outlet tube 11 from one side close to the sound outlet hole 12, so that the positioning flange 31 is clamped on the positioning groove 24, and the loudspeaker 30 is fixedly connected with the bracket 20 through dispensing; then, the feedback microphone 40 is stuck into the fixing groove 22; finally, the whole support 20 is placed into the sound emitting tube 11, so that the positioning protrusions 23 are clamped in the positioning bosses 13, and the support 20 and the sound emitting tube 11 are fixedly connected through dispensing and sealing. The structure is easy to install and reliable.

The utility model discloses an earphone of making an uproar falls sets up speaker and feedback microphone on the support through installing support in the sound-producing section of thick bamboo for the feedback microphone can reach the purpose of making an uproar of falling through the sound of sound transmission hole absorption human ear feedback, thereby improves tone quality effect.

Although specific embodiments of the present invention have been described above, it should be understood by those skilled in the art that the described embodiments are only some of the embodiments of the present invention, rather than all embodiments, which are given by way of illustration only, and the scope of the present invention is defined by the appended claims. Without any inventive step, those skilled in the art can make various changes or modifications to the embodiments without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a noise reduction earphone, includes the casing, the one end of casing is provided with a sound outlet, the tip of a sound outlet is equipped with the sound hole, a serial communication port, install the support in the sound outlet, the support is the tubular structure, install speaker and feedback microphone in the support, be provided with the intercommunication on the support feedback microphone with the sound conduction hole in sound hole.

2. The noise reducing earphone according to claim 1, wherein the speaker is soldered with a flexible circuit board, and the flexible circuit board is electrically connected with the feedback microphone and the main board.

3. The noise reducing headset of claim 1, wherein the speaker is mounted at an end of the cradle proximate the sound outlet, and the feedback microphone is mounted at an end of the cradle distal the sound outlet.

4. The noise reduction earphone according to claim 3, wherein a fixing groove is formed at an end of the support far away from the sound outlet hole, and the feedback microphone is adhered in the fixing groove.

5. The noise reduction earphone according to claim 4, wherein a positioning protrusion protruding towards the sound outlet cylinder is arranged on the outer side of the support, and a positioning boss is arranged at a corresponding position on the inner side of the sound outlet cylinder.

6. The noise reducing earphone according to claim 5, wherein the positioning protrusion is provided outside the fixing groove.

7. The noise reduction earphone according to claim 1, wherein the speaker is provided with a positioning flange protruding toward the bracket at an outer side thereof, and a positioning groove is provided at a corresponding position inside the bracket.

8. The noise reduction earphone according to claim 1, wherein the support is fixedly connected with the sound outlet tube through a dispensing seal.

9. The noise reduction earphone according to claim 1, wherein the speaker is fixedly connected with the bracket through adhesive dispensing.

10. The noise reducing earphone according to claim 1, wherein the sound transmission hole has a funnel-shaped structure, and the cross-sectional area of the sound transmission hole gradually decreases from an end near the sound outlet hole to an end near the feedback microphone.