CN210202048U

CN210202048U - Noise reduction earphone

Info

Publication number: CN210202048U
Application number: CN201921360817.4U
Authority: CN
Inventors: Qingkai Mei; 梅庆开
Original assignee: Shenzhen City Charm Smart Ltd By Share Ltd
Current assignee: Shenzhen City Charm Smart Ltd By Share Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-03-27
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a noise reduction earphone, which comprises an earphone main body with an installation cavity, a front panel arranged in the installation cavity, a rear cover which forms a closed cavity with the front panel in a surrounding way, and a loudspeaker arranged in the closed cavity; the front panel is provided with a sound outlet corresponding to the loudspeaker. The front panel and the rear cover are enclosed to form a closed cavity, the loudspeaker is arranged in the closed cavity and produces sound outwards through the sound outlet hole, namely the front panel, the rear cover and the loudspeaker form an independent acoustic cavity, and only the noise reduction debugging is needed to be carried out on the acoustic cavity; therefore, for noise reduction earphones with different sizes and specifications, no matter how the parameters of the earphone main body and the parameters of the installation cavity are improved, an independent acoustic cavity can be formed by the front panel, the rear cover and the loudspeaker, the noise reduction function and the noise reduction parameters do not need to be debugged, and the universality of the noise reduction acoustic cavity is realized.

Description

Noise reduction earphone

Technical Field

The utility model relates to an earphone field especially relates to an earphone of making an uproar falls.

Background

The noise reduction acoustic cavity of the existing noise reduction earphone has uniqueness, namely, each earphone has the unique acoustic cavity, so that for different earphones, if one cavity or some parameters are changed, the influence on the noise reduction effect is very large, and no noise reduction effect is possibly caused, so that the noise reduction acoustic cavity of the existing noise reduction earphone cannot be used universally.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an earphone of making an uproar falls aims at solving prior art, falls the unable general problem of the acoustics cavity of making an uproar.

To achieve the purpose, the utility model adopts the following technical proposal:

the noise reduction earphone comprises an earphone main body with a mounting cavity, a front panel arranged in the mounting cavity, a rear cover which forms a closed cavity with the front panel in a surrounding manner, and a loudspeaker arranged in the closed cavity; the front panel is provided with a sound outlet corresponding to the loudspeaker.

Further, the front panel is close to one side of back lid has seted up the mounting groove, loudspeaker install in the mounting groove, the sound outlet is seted up in the tank bottom of mounting groove.

Furthermore, the front panel is provided with an exhaust hole communicated with the closed cavity.

Furthermore, an air outlet is formed in the rear cover and communicated with the closed cavity and the mounting cavity.

Furthermore, a first sealing ring is arranged between the horn and the mounting groove, one side of the first sealing ring is abutted against the inner side wall of the mounting groove, and the other side of the first sealing ring is abutted against the side face of the horn.

Furthermore, the earphone also comprises a flexible backing ring which is connected with the earphone main body and surrounds the sound outlet hole, and the flexible backing ring and the front panel are encircled to form a sound outlet cavity.

Furthermore, a first noise reduction microphone is mounted in the middle of the front panel and located in the sound outlet cavity.

Furthermore, a clamping groove is formed in the front panel, and the rear cover is provided with a clamping convex ring clamped in the clamping groove.

Furthermore, a second sealing ring is arranged in the clamping groove, and the clamping convex ring is abutted to the second sealing ring.

Further, the earphone body comprises a head bow and earphone covers mounted at two opposite ends of the head bow; the mounting cavity is positioned on the earphone cover, and a second noise reduction microphone is arranged on the side surface of the earphone cover; the second noise reduction microphone is positioned behind the noise reduction earphone.

The utility model has the advantages that: the front panel and the rear cover are enclosed to form a closed cavity, the loudspeaker is arranged in the closed cavity and produces sound outwards through the sound outlet hole, namely the front panel, the rear cover and the loudspeaker form an independent acoustic cavity, and only the noise reduction debugging is needed to be carried out on the acoustic cavity; therefore, for noise reduction earphones with different sizes and specifications, no matter how the parameters of the earphone main body and the parameters of the installation cavity are improved, an independent acoustic cavity can be formed by the front panel, the rear cover and the loudspeaker, the noise reduction function and the noise reduction parameters do not need to be debugged, and the universality of the noise reduction acoustic cavity is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a noise reduction earphone according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic diagram of an internal structure of a noise reduction earphone according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

in the figure:

1. an earphone main body; 11. a mounting cavity; 12. a head bow; 13. an earphone cover;

2. a front panel; 21. a sound outlet; 22. mounting grooves; 23. an exhaust hole; 24. a clamping groove;

3. a rear cover; 31. an air outlet; 32. clamping the convex ring;

4. a closed cavity; 5. a flexible backing ring; 6. a sound outlet cavity; 7. a first noise reduction microphone; 8. a second noise reduction microphone.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

As shown in fig. 1-4, an embodiment of the present invention provides a noise reduction earphone, which includes an earphone main body 1 having a mounting cavity 11, a front panel 2 disposed in the mounting cavity 11, a rear cover 3 enclosing with the front panel 2 to form a closed cavity 4, and a speaker disposed in the closed cavity 4; the front panel 2 is provided with a sound outlet 21 corresponding to the speaker.

In the embodiment of the utility model, the front panel 2 and the rear cover 3 enclose to form a closed cavity 4, the horn is arranged in the closed cavity 4 and produces sound outwards through the sound outlet hole 21, namely the front panel 2, the rear cover 3 and the horn form an independent acoustic cavity, and only the noise reduction debugging is needed to be carried out on the acoustic cavity; therefore, for noise reduction earphones of different sizes and specifications, no matter how the parameters of the earphone main body 1 and the parameters of the mounting cavity 11 are improved, an independent acoustic cavity can be formed by the front panel 2, the rear cover 3 and the loudspeaker, the noise reduction function and the noise reduction parameters do not need to be debugged, and the universality of the noise reduction acoustic cavity is realized.

Further, please refer to fig. 4, as the utility model provides a another kind of embodiment of the noise reduction earphone, mounting groove 22 has been seted up to one side that front panel 2 is close to back lid 3, loudspeaker install in mounting groove 22, the tank bottom in mounting groove 22 is seted up to sound outlet 21, therefore sound outlet 21 only is as the effect of making a sound of loudspeaker, has effectively avoided closed chamber 4 to receive external influence through sound outlet 21, guarantees front panel 2, back lid 3 and the independence of the acoustics cavity that loudspeaker constitute.

Further, referring to fig. 2, as another embodiment of the noise reduction earphone provided by the present invention, the front panel 2 is provided with an exhaust hole 23 communicating with the closed cavity 4. When the noise reduction earphone is worn, certain air flow is formed between the head and the noise reduction earphone at the moment of contact of the head and the earphone, in order to avoid the adverse states of self-excitation, squeal, diaphragm sound and the like of the noise reduction earphone caused by the air flow, the front panel 2 is provided with the exhaust hole 23 communicated with the closed cavity 4, so that the air flow formed between the head and the noise reduction earphone at the moment of contact of the head and the earphone enters the closed cavity 4 through the exhaust hole 23, and the adverse states of self-excitation, squeal, diaphragm sound and the like caused by air flow impact are avoided.

Further, please refer to fig. 3-4, as another embodiment of the noise reduction earphone provided by the present invention, an air outlet 31 is formed on the rear cover 3, and the air outlet 31 communicates the closed cavity 4 and the mounting cavity 11. The air current formed between the moment when the head contacts the earphone and the noise reduction earphone enters the closed cavity 4 through the air exhaust hole 23 and then is exhausted out of the closed cavity 4 through the air outlet hole 31, so that the air current can be smoothly exhausted, and the adverse states of self-excitation, squeal, diaphragm sound generation and the like of the noise reduction earphone caused by the air current are further avoided.

Further, please refer to fig. 4, as another embodiment of the noise reduction earphone provided by the present invention, a first sealing ring is disposed between the speaker and the mounting groove 22, one side of the first sealing ring is abutted to the inner sidewall of the mounting groove 22, and the other side of the first sealing ring is abutted to the side of the speaker. The first sealing ring is used for sealing a gap between the loudspeaker and the front panel 2, further avoiding the closed cavity 4 from being influenced by the outside through the sound outlet hole 21, and ensuring the independence of the acoustic cavity formed by the front panel 2, the rear cover 3 and the loudspeaker.

Further, please refer to fig. 1, as another embodiment of the noise reduction earphone provided by the present invention, the noise reduction earphone further includes a flexible backing ring 5 connected to the earphone main body 1 and surrounding the sound outlet 21, and the flexible backing ring 5 and the front panel 2 enclose to form a sound outlet cavity 6 (i.e. an outer cavity). When the noise reduction earphone is worn, the flexible backing ring 5 is in contact with the head of a user, so that the use experience is improved.

Further, please refer to fig. 1, as another embodiment of the noise reduction earphone provided by the present invention, a first noise reduction microphone 7 is installed in the middle of the front panel 2, and the first noise reduction microphone 7 is located in the sound outlet cavity 6. Therefore, the first noise reduction microphone 7 can correspond to the center position of the loudspeaker, the first noise reduction microphone 7 is matched with the loudspeaker to realize feedback type active noise reduction, and the noise reduction effect at the position has a better active noise reduction effect.

Further, please refer to fig. 4, as another embodiment of the noise reduction earphone provided by the present invention, a clamping groove 24 is formed on the front panel 2, and the rear cover 3 has a clamping convex ring 32 clamped in the clamping groove 24. The back lid 3 forms the closed chamber 4 through joint bulge loop 32 and the joint groove 24 looks joint on the front panel 2, and the setting of joint groove 24 can effectively promote the closed effect of closed chamber 4.

Further, please refer to fig. 4, as the utility model provides a another kind of embodiment of the noise reduction earphone, be equipped with the second sealing washer in the joint groove 24, joint bulge loop 32 and second sealing washer looks butt, also the second sealing washer has realized filling up the clearance between the joint bulge loop 32 joint groove 24 of joint, has further promoted the closed effect of closed chamber 4.

Further, referring to fig. 1, as another embodiment of the noise reduction earphone provided by the present invention, the earphone main body 1 includes a head bow 12 and earphone covers 13 mounted at two opposite ends of the head bow 12; the mounting cavity 11 is positioned on the earphone cover 13, and the side surface of the earphone cover 13 is provided with a second noise reduction microphone 8; the second noise reducing microphone 8 is located behind the noise reducing headphone. The second is fallen and is fallen miaow 8 and be located the rear of making an uproar earphone, also falls the rear that the earphone was worn and is located earphone cover 13's side surface and be located people's head when also, consequently can effectively prevent the influence of wind, and this position can not receive the influence that blows and influence the noise reduction effect when people's front is windward, has better noise reduction effect.

It is to be understood that aspects of the present invention may be practiced otherwise than as specifically described.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The noise reduction earphone is characterized by comprising an earphone main body with a mounting cavity, a front panel arranged in the mounting cavity, a rear cover which forms a closed cavity with the front panel in a surrounding manner, and a loudspeaker arranged in the closed cavity; the front panel is provided with a sound outlet corresponding to the loudspeaker.

2. The noise reduction earphone according to claim 1, wherein a mounting groove is formed on a side of the front panel close to the rear cover, the speaker is mounted in the mounting groove, and the sound outlet is formed at a bottom of the mounting groove.

3. A noise reducing earphone according to claim 1 or 2, wherein the front panel is provided with an air vent communicating with the closed cavity.

4. The noise reduction earphone according to claim 3, wherein the rear cover is provided with an air outlet hole, and the air outlet hole is communicated with the closed cavity and the mounting cavity.

5. The noise reduction earphone according to claim 2, wherein a first sealing ring is disposed between the speaker and the mounting groove, one side of the first sealing ring abuts against an inner side wall of the mounting groove, and the other side of the first sealing ring abuts against a side surface of the speaker.

6. The noise reducing earphone according to claim 1, further comprising a flexible grommet connected to the earphone body and disposed around the sound outlet hole, wherein the flexible grommet and the front panel enclose a sound outlet cavity.

7. The noise reducing earphone according to claim 6 wherein a first noise reducing microphone is mounted to a middle portion of the front plate, the first noise reducing microphone being located within the sound-emitting cavity.

8. The noise reduction earphone according to claim 1, wherein the front panel is provided with a clamping groove, and the rear cover is provided with a clamping convex ring clamped in the clamping groove.

9. The noise reduction earphone according to claim 8, wherein a second sealing ring is arranged in the clamping groove, and the clamping convex ring abuts against the second sealing ring.

10. The noise reducing headphone of claim 1 wherein the headphone body comprises a headpiece, and headphone covers mounted to opposite ends of the headpiece; the mounting cavity is positioned on the earphone cover, and a second noise reduction microphone is arranged on the side surface of the earphone cover; the second noise reduction microphone is positioned behind the noise reduction earphone.