CN211128132U - Noise reduction headset - Google Patents

Abstract

The utility model provides a headphone of making an uproar falls in wear-type, including wear the support and connect in the casing at head-mounted support both ends, be equipped with the circuit board in the casing and with the loudspeaker, microphone and audio horn of making an uproar fall of circuit board electricity connection, fall the loudspeaker with be formed with first cavity between the lateral wall of casing, fall the loudspeaker with be formed with the second cavity between the inside wall of casing, the microphone set up in the second cavity, the inside wall external connection of casing has the earpad, the earpad is the annular, the lateral wall of earpad with it accepts the chamber to form between the inside wall of casing, be equipped with on the inside wall of casing and pick up the sound hole, pick up the sound hole intercommunication the second cavity with accept the chamber, the microphone with fall the loudspeaker of making an uproar respectively with fall the circuit electric connection of making an uproar on the circuit board.

Description

Noise reduction headset

Technical Field

The utility model relates to an earphone technical field, in particular to headset of making an uproar falls.

Background

With the continuous improvement of the pursuit of quality of life of people and the rapid development of scientific technology, the noise reduction earphone is accepted and accepted by more and more consumers. Because the noise is shielded, the noise reduction earphone can be conveniently used for enjoying music or receiving calls in public places, such as noise environments of subways, trains, shopping malls and the like without interference. However, the existing noise reduction earphone has the same noise reduction loudspeaker and audio loudspeaker, and the noise reduction effect is limited. Therefore, how to further improve the noise reduction effect of the noise reduction earphone is one of the research and development directions of those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a can make the earphone broadcast sound clearer wear-type noise reduction earphone.

The utility model provides a headphone of making an uproar falls in wear-type, including wear the support and connect in the casing at head-mounted support both ends, be equipped with the circuit board in the casing and with loudspeaker, microphone and audio horn of making an uproar fall that the circuit board electricity is connected, fall make an uproar loudspeaker with be formed with first cavity between the lateral wall of casing, fall make an uproar loudspeaker with be formed with the second cavity between the inside wall of casing, the microphone set up in the second cavity, the inside wall external connection of casing has the ear pad, the lateral wall of ear pad with form between the inside wall of casing and accept the chamber, be equipped with on the inside wall of casing and pick up the sound hole, pick up the sound hole intercommunication the second cavity with accept the chamber, the microphone with fall make an uproar loudspeaker respectively with fall the circuit electric connection of making an uproar on the.

In one embodiment, the microphone is provided with a sound receiving hole, and the sound receiving hole is arranged opposite to the sound picking-up hole.

In an embodiment, the inner side wall protrudes and forms an earshell located in the accommodating cavity, a third cavity is formed inside the earshell, the third cavity is communicated with the second cavity, the audio speaker is disposed in the third cavity, and a sound outlet hole communicated with the third cavity is disposed at a tail end of the earshell.

In one embodiment, a soft earplug is connected to an end of the ear shell, the soft earplug having a sound outlet in communication with the sound outlet, the soft earplug being adapted to be worn in an ear of a user.

In an embodiment, the headset is used for connecting with an electronic device to play an audio signal of the electronic device, and the audio speaker is only used for playing the audio signal.

In an embodiment, the noise reduction speaker is only used for playing the noise reduction signal fed back by the noise reduction circuit.

In an embodiment, the inner side wall of the housing includes a first inner side wall and a second inner side wall, the first inner side wall is connected to the second inner side wall through a connecting portion, the earmuff is connected to the second inner side wall, the sound pickup hole is disposed on the second inner side wall, and the microphone is disposed on the second inner side wall.

In one embodiment, the circuit board is connected to the inner side of the side edge of the shell to divide the first cavity into a first closed chamber and a second closed chamber.

In one embodiment, the casing includes a bottom casing and a face casing, the bottom casing is connected to an end of the head mount, the face casing is connected to the inner side of the bottom casing, and the noise reduction speaker is connected to the end of the side of the face casing and abuts against the inner side wall of the bottom casing.

In one embodiment, the ear pad is annular and made of a resilient material.

To sum up, the utility model provides a headset of making an uproar falls through falling loudspeaker and audio loudspeaker independent setting of making an uproar for earphone broadcast sound is more clear. Be formed with first cavity between the lateral wall of the loudspeaker of making an uproar and casing of making an uproar, be formed with the second cavity between the inside wall of the loudspeaker of making an uproar and casing of making an uproar, the microphone sets up in the second cavity, is connected with the ear pad on the inside wall of casing, forms jointly between ear pad and the casing inside wall and accepts the chamber. The inner side wall of the shell is connected with an earshell positioned in the accommodating cavity, a third cavity communicated with the second cavity is arranged in the earshell, and the audio horn is arranged in the third cavity. Still be equipped with on the casing inside wall and pick up the sound hole, the microphone is close to the setting of sound hole, and when the user worn the earphone, the user's ear quilt cover was located and is acceptd the intracavity to it makes an uproar to form the isolated noise reduction of first physics. When external sound passes through the shell or the ear pad and enters the containing cavity and then enters the second cavity from the pickup hole, the microphone near the pickup hole is collected, the microphone feeds back the collected noise signal to the noise reduction circuit, the noise reduction circuit receives the noise signal fed back by the microphone and processes the noise signal and then returns to the noise reduction loudspeaker, so that the noise signal with the same amplitude and the opposite phase is output, and further noise is reduced.

In addition, the sound receiving hole of the microphone is arranged right opposite to the sound pickup hole, so that the noise collecting effect is better. If there is less noise not collected by the microphone, a second physically isolated noise reduction is also created due to the close contact of the soft earplug with the user's eardrum, making the noise reduction more complete. The circuit board is located in the first cavity and divides the first cavity into a first closed chamber and a second closed chamber, so that sound outside the shell is effectively prevented from entering the ear of a user after entering the shell. The utility model discloses a to fall the loudspeaker of making an uproar and audio horn independent setting and structural design in the casing make the earphone form the multiple isolation of making an uproar of falling, prevent effectively that external sound from getting into the earphone, fall to the noise to minimum to make earphone broadcast sound more clear, bring good product experience for the user.

Drawings

Fig. 1 is a schematic perspective view of the noise reduction headset of the present invention.

Fig. 2 is an exploded view of the noise reducing headset of fig. 1.

Fig. 3 is a side cross-sectional view of the noise reducing headset of fig. 1.

Detailed Description

Before the embodiments are described in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The utility model discloses can be the embodiment that other modes realized. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," "having," and the like, herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention is not limited to the number of the element being one, and may include a plurality of the elements.

As shown in fig. 1-3, the present invention provides a noise reduction headphone 10, the noise reduction headphone 10 includes a headphone support 12 and a housing 14 connected to two ends of the headphone support 12. In the present embodiment, the external structure, the internal structure, and the arrangement of components of the two cases 14 are the same, and therefore, only one case 14 will be described below.

The housing 14 is circular. The housing 14 is provided with a circuit board 16, and a noise reduction speaker 18, a microphone 20 and an audio speaker 22 electrically connected to the circuit board 16. The circuit board 16 is provided with a noise reduction circuit, and the microphone 20 and the noise reduction speaker 18 are electrically connected to the noise reduction circuit respectively.

In the illustrated embodiment, the housing 14 is assembled from a bottom shell 24 and a face shell 26 that snap together. The lateral outer side of the bottom shell 24 is connected to the end of the head mount 12, for example, by being integrally formed therewith. The face shell 26 is connected to the inner side of the bottom shell 24, so that the outer side of the face shell 26 abuts against the inner side of the bottom shell 24, and the end surface of the side of the face shell 26 abuts against the inner side wall of the bottom shell 24, thereby forming a sealed closed space inside the housing 14.

A first cavity 28 is formed between the noise reduction horn 18 and the outer side wall of the housing 14, i.e., the face shell 26, a second cavity 30 is formed between the noise reduction horn 18 and the inner side wall of the housing 14, i.e., the bottom shell 24, and the microphone 20 is disposed in the second cavity 30.

An inner sidewall of the housing 14, i.e. a central portion of the inner sidewall of the bottom housing 24, protrudes inward to form an earshell 34 adapted to an ear canal of a human body, the earshell 34 is configured to be inserted into an ear of a user, a third cavity 37 communicated with the second cavity 30 is formed in the earshell 34, and a sound outlet 35 communicated with the third cavity 37 is formed at a distal end of the earshell 34. Specifically, the inner sidewall of the housing 14, i.e., the inner sidewall of the bottom housing 24, includes a first inner sidewall 31, a second inner sidewall 32, and a connecting portion 33 connected between the first inner sidewall 31 and the second inner sidewall 32, and the ear shell 34 is connected to the second inner sidewall 32. A soft earplug 36 is connected to the end of the ear shell 34, the soft earplug 36 has a sound outlet communicating with the sound outlet 36, and the soft earplug 36 is used for being worn in the ear of the user and being in close contact with the eardrum of the user.

The noise reduction horn 18 is circular, and the noise reduction horn 18 is disposed at the junction of the bottom shell 24 and the face shell 26 in the housing 14. The outer end face of the noise reduction horn 18 abuts against the end of the side inner side face of the face shell 26, and the outer end inner side face of the noise reduction horn 18 abuts against the inner side wall of the bottom shell 24, so that the noise reduction horn 18 separates the inner space of the casing 14 into a first cavity 28 located on the outer side and a second cavity 30 located on the inner side. It should be appreciated that in the illustrated embodiment, the noise reduction horn 18 is relatively large in size, and therefore, the noise reduction horn 18 directly divides the interior of the housing 14 into the first cavity 28 and the second cavity 30. In other embodiments, the noise reduction speaker 18 may be assembled with other components in the housing 14 to form the first cavity 28 and the second cavity 30.

The audio speaker 22 is disposed within the third cavity 37, for example, the audio speaker 22 is mounted on an interior sidewall within the earshell 34. The connecting portion 33, the second inner sidewall 32, the ear shell 34 and the audio horn 22 together surround the noise reduction horn 18 to form the second cavity 30. The first cavity 28 is formed between the noise reduction horn 18 and the outer sidewall of the housing 14, that is, the panel 26 and the noise reduction horn 18 together enclose the first cavity 28.

The inner side wall of the housing 14 is provided with a sound collecting hole 38, in this embodiment, the sound collecting hole 38 is disposed on the second inner side wall 32, the microphone 20 is disposed near the sound collecting hole 38, and the microphone 20 is provided with a sound collecting hole 40. In the illustrated embodiment, the side of the second inner sidewall 32 located in the second chamber 30 surrounding the sound pickup hole 38 extends toward the inside of the second chamber 30 to form a convex ring 42, a containing groove is formed in the convex ring 42, the microphone 20 is installed in the containing groove, and the sound pickup hole 40 of the microphone 20 is opposite to the sound pickup hole 38, so that the noise collection effect is better.

The headset 10 of making an uproar falls is used for being connected with electronic equipment, for example the audio signal in order to broadcast the cell-phone with the cell-phone, the utility model discloses in, audio horn 22 sets up and only is used for broadcasting audio signal in third cavity 37, and the loudspeaker 18 of making an uproar falls the signal of making an uproar only to be used for broadcasting the signal of making an uproar of falling of circuit feedback that falls.

An ear pad 44 is connected to the outer side of the inner side wall of the housing 14, and the ear pad 44 can be made of elastic material such as sponge. In this embodiment, the ear pad 44 is annular, an accommodating cavity 46 is formed between a side wall of the ear pad 44 and an inner side wall of the casing 14, that is, an inner side wall of the bottom casing 24, and the ear pad 44 is configured to be sleeved on an ear of a user so that the ear of the user is covered in the accommodating cavity 46, thereby forming a first physical isolation noise reduction. Specifically, the outer edge of the second inner side wall 32 extends outward to form a protrusion 48, and the ear pad 44 is clipped on the protrusion 48. The ear pad 44 has a cavity structure therein, and the inner sidewall of the ear pad 44, the second inner sidewall 32 and the ear shell 34 together enclose a receiving cavity 46.

The sound pickup hole 38 communicates the second cavity 30 and the accommodating cavity 46, when external sound enters the accommodating cavity 46 through the housing 14 or the ear pad 44, the external sound enters the second cavity 30 through the sound pickup hole 38, the external sound is collected by the microphone 20 near the sound pickup hole 38, the microphone 20 feeds back the collected noise signal to the noise reduction circuit, the noise reduction circuit receives and processes the noise signal fed back by the microphone 20, and the processed noise signal returns to the noise reduction speaker 18, so that the noise signal with the same amplitude and the opposite phase as the noise is output, and the noise reduction effect is further improved. If there is less noise not collected by the microphone 20, a second physically isolated noise reduction is also created due to the close contact of the ear bud 36 with the user's eardrum, making the noise reduction more complete.

The circuit board 16 is disposed within the face housing 26, and the circuit board 16 is also disposed in a circular shape. The outer end face of the circuit board 16 is connected to the inner side face of the side edge of the face shell 26 to divide the first cavity 28 into a first closed chamber 50 and a second closed chamber 52, so that a sound transmission barrier can be formed, and sound outside the casing 14 can be effectively prevented from entering the ear of the user after entering the casing 14.

To sum up, the utility model provides a headset of making an uproar falls through falling loudspeaker and audio loudspeaker independent setting of making an uproar for earphone broadcast sound is more clear. Be formed with first cavity between the lateral wall of the loudspeaker of making an uproar and casing of making an uproar, be formed with the second cavity between the inside wall of the loudspeaker of making an uproar and casing of making an uproar, the microphone sets up in the second cavity, is connected with the ear pad on the inside wall of casing, forms jointly between ear pad and the casing inside wall and accepts the chamber. The inner side wall of the shell is connected with an earshell positioned in the accommodating cavity, a third cavity communicated with the second cavity is arranged in the earshell, and the audio horn is arranged in the third cavity. Still be equipped with on the casing inside wall and pick up the sound hole, the microphone is close to the setting of sound hole, and when the user worn the earphone, the user's ear quilt cover was located and is acceptd the intracavity to it makes an uproar to form the isolated noise reduction of first physics. When external sound passes through the shell or the ear pad and enters the containing cavity and then enters the second cavity from the pickup hole, the microphone near the pickup hole is collected, the microphone feeds back the collected noise signal to the noise reduction circuit, the noise reduction circuit receives the noise signal fed back by the microphone and processes the noise signal and then returns to the noise reduction loudspeaker, so that the noise signal with the same amplitude and the opposite phase is output, and further noise is reduced.

In addition, the sound receiving hole of the microphone is arranged right opposite to the sound pickup hole, so that the noise collecting effect is better. If there is also less noise that is not collected by the microphone, a second physically isolated noise reduction is also created, as the ear plug is in close contact with the user's eardrum, making the noise reduction more complete. The circuit board is located in the first cavity and divides the first cavity into a first closed chamber and a second closed chamber, so that sound outside the shell is effectively prevented from entering the ear of a user after entering the shell. The utility model discloses a to fall the loudspeaker of making an uproar and audio horn independent setting and structural design in the casing make the earphone form the multiple isolation of making an uproar of falling, prevent effectively that external sound from getting into the earphone, fall to the noise to minimum to make earphone broadcast sound more clear, bring good product experience for the user.

The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. The utility model provides a headphone of making an uproar falls, including wear the support and connect in wear the casing at support both ends, its characterized in that, be equipped with the circuit board in the casing and with loudspeaker, microphone and audio horn of making an uproar fall of circuit board electricity connection, fall make an uproar loudspeaker with be formed with first cavity between the lateral wall of casing, fall make an uproar loudspeaker with be formed with the second cavity between the inside wall of casing, the microphone set up in the second cavity, the inside wall external connection of casing has the ear pad, the lateral wall of ear pad with form between the inside wall of casing and accept the chamber, be equipped with on the inside wall of casing and pick up the sound hole, pick up the sound hole intercommunication the second cavity with accept the chamber, the microphone with fall make an uproar loudspeaker respectively with fall the circuit electric connection of making an uproar on the circuit board.

2. The noise reducing headset of claim 1, wherein the microphone has a sound receiving hole disposed directly opposite the sound pickup hole.

3. The noise-reducing headset according to claim 1, wherein the inner sidewall is formed with a protruding ear shell located in the receiving cavity, a third cavity is formed inside the ear shell, the third cavity is connected to the second cavity, the audio speaker is disposed in the third cavity, and a sound outlet hole connected to the third cavity is formed at a distal end of the ear shell.

4. A noise reducing headset according to claim 3, wherein a soft ear plug is connected to the end of the ear shell, the soft ear plug having a sound outlet communicating with the sound outlet, the soft ear plug being adapted to be worn in the ear of a user.

5. A noise reducing headset according to claim 3, wherein the noise reducing headset is configured to connect with an electronic device to play audio signals of the electronic device, the audio speaker being configured to play audio signals only.

6. A noise reducing headphone as claimed in claim 5, wherein the noise reducing speaker is only used to play the noise reducing signal fed back by the noise reducing circuit.

7. The noise-reducing headset according to claim 3, wherein the inner sidewall of the housing includes a first inner sidewall and a second inner sidewall, the first inner sidewall and the second inner sidewall are connected by a connecting portion, the earshell is connected to the second inner sidewall, the sound pickup hole is disposed on the second inner sidewall, and the microphone is disposed on the second inner sidewall.

8. The noise reducing headset of claim 1, wherein the circuit board is connected to the inside of the side of the housing dividing the first cavity into a first enclosed chamber and a second enclosed chamber.

9. The noise reducing headset of claim 1, wherein the housing includes a bottom shell and a face shell, the bottom shell being connected to an end of the head mount, the face shell being connected to a side inner side of the bottom shell, the noise reducing horn being connected to a side end of the face shell and abutting an inner side wall of the bottom shell.

10. A noise reducing headset according to claim 1, wherein the ear pad is ring-shaped and made of an elastic material.

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