CN212231705U

CN212231705U - Noise-reducing headphone with independent acoustic cavity

Info

Publication number: CN212231705U
Application number: CN202020862868.3U
Authority: CN
Inventors: 冯超
Original assignee: Huidefeng Guangzhou Technology Co ltd
Current assignee: Huidefeng Guangzhou Technology Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-12-25
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a noise reduction type headphone with an independent sound cavity, which comprises a headband and a pair of headphone units, wherein the two headphone units are respectively connected with the two ends of the headband, the headphone units comprise a shell and a loudspeaker arranged in the shell, wherein, a mounting piece is arranged in the shell, the mounting piece comprises a base plate part and an annular part, and the base plate part is arranged on the shell; the annular part is provided with an installation cavity with an outward opening, and a plurality of sound outlet holes penetrate through the bottom surface of the substrate part corresponding to the installation cavity; the opening of the mounting cavity is covered with a sound-absorbing and noise-reducing flexible plate, the flexible plate covers the mounting cavity to form an independent sound cavity, the loudspeaker is mounted in the independent sound cavity, and the inner side of the loudspeaker is opposite to the sound outlet holes. Cover the installation cavity through adopting the flexbile plate and form independent sound chamber, compare the independent sound chamber that traditional stereoplasm plastic material encloses the configuration, its flexbile plate can restrain the reflection of sound, plays the effect of inhaling the sound and making an uproar to make the tone quality of earphone better.

Description

Noise-reducing headphone with independent acoustic cavity

Technical Field

The utility model belongs to the technical field of the earphone technique and specifically relates to indicate a formula of making an uproar headphone falls with independent sound chamber.

Background

With the pursuit of audio and video enjoyment, earphones have become a device that most people carry with them. The headset is good in low-frequency effect, high in fidelity and convenient to carry, and becomes a consumer product favored by music enthusiasts.

Traditional earphone can be provided with a sealed lid at the lateral surface of loudspeaker, and sealed lid carries out the closing cap to loudspeaker and seals, forms independent sound chamber between sealed lid and the loudspeaker. But sealed lid adopts the stereoplasm plastic material to make, and the stereoplasm plastic material can produce the reflection to sound to can produce certain noise, influenced the tone quality effect of earphone promptly.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a noise reduction type headphone with an independent acoustic cavity, which effectively solves the problem of the conventional hard plastic enclosure forming the independent acoustic cavity to generate a certain noise and affect the sound quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a noise reduction type headset with an independent sound cavity comprises a head band and a pair of headset units, wherein the two headset units are respectively connected to two ends of the head band; the annular part is provided with an installation cavity with an outward opening, and a plurality of sound outlet holes penetrate through the bottom surface of the substrate part corresponding to the installation cavity; the opening of the mounting cavity is covered with a sound-absorbing and noise-reducing flexible plate, the flexible plate covers the mounting cavity to form an independent sound cavity, the loudspeaker is mounted in the independent sound cavity, and the inner side of the loudspeaker is opposite to the sound outlet holes.

As a preferred scheme, the flexible plate is made of EVA materials.

As a preferred scheme, be provided with the PCB board in the casing, above-mentioned base plate portion epirelief is equipped with the erection column, and the both ends lock of PCB board is on the erection column, and the PCB board presses on the flexbile plate.

Preferably, the outer peripheral edge of the base plate portion is provided with a clamping portion protruding outward, and correspondingly, the housing is provided with a clamping groove in a concave manner, and the clamping portion is inserted into the clamping groove for fixation.

As a preferred scheme, joint portion is three that the interval was arranged, and is corresponding, and the draw-in groove is three that the interval was arranged, and three joint portion insert in the draw-in groove that corresponds fixedly.

As a preferable scheme, the headband is provided with a connecting frame, and the lower end of the connecting frame is inserted into a clamping groove of the connecting frame; the earphone unit also comprises a power line and an earphone, and the power line and the earphone are respectively led out from the rest two card slots.

Preferably, the sound outlet holes are honeycomb-shaped.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

cover the installation cavity through adopting the flexbile plate and form independent sound chamber, compare the independent sound chamber that traditional stereoplasm plastic material encloses the configuration, its flexbile plate can restrain the reflection of sound, plays the effect of inhaling the sound and making an uproar to make the tone quality of earphone better.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

fig. 2 is an exploded view of the earphone unit in the preferred embodiment of the present invention;

fig. 3 is a cross-sectional view of an earphone unit according to a preferred embodiment of the present invention;

fig. 4 is a perspective view of the mounting member in the preferred embodiment of the invention.

The attached drawings indicate the following:

10. headband 11 and connecting frame

20. Earphone unit 21, housing

22. Horn 23 and mounting piece

231. Base plate 232, annular portion

233. Clamping part 234 and mounting column

201. Card slot 202 and installation cavity

203. Sound outlet 24 and power cord

25. Headset 26, flexible board

27. And (7) a PCB board.

Detailed Description

Referring to fig. 1 to 4, a specific structure of a preferred embodiment of the present invention is shown, including a headband 10 and a pair of earphone units 20.

Two earphone units 20 are connected respectively in the both ends of bandeau 10, earphone unit 20 is including casing 21 and the loudspeaker 22 that sets up in the casing, wherein, be provided with an installed part 23 in the casing 21, this installed part is including base plate portion 231 and annular portion 232, this base plate portion 231 is installed on casing 21, specifically speaking, the outer peripheral lateral margin of base plate portion 231 outwards convexly is equipped with joint portion 233, it is corresponding, casing 21 goes up to cave in and is equipped with draw-in groove 201, this joint portion 233 inserts fixedly in draw-in groove 201, and joint portion 233 is three that the interval was arranged, it is corresponding, draw-in groove 201 is three that the interval was arranged, three joint portion 233 inserts fixedly in the draw-in groove 201 that corresponds. The headband 10 is provided with a connecting frame 11, and the lower end of the connecting frame 11 is inserted into a clamping groove 201; the earphone unit 20 further comprises a power line 24 and an earphone 25, the power line 24 and the earphone 25 are respectively led out from the two remaining slots 201, and the three clamping portions 233 respectively share the three slots 201 with the connecting frame 11, the power line 24 and the earphone 25, so that the effect of one slot for two purposes is achieved, slotted holes corresponding to different parts are prevented from being additionally formed in the shell 21, and the structural strength of the shell 21 is better.

The annular portion 232 has an installation cavity 202 with an outward opening, and the base plate portion 231 has a plurality of sound holes 203 penetrating through the bottom surface of the installation cavity, in this embodiment, the plurality of sound holes 203 are honeycomb-shaped. The opening of the mounting cavity 202 is covered with a sound-absorbing and noise-reducing flexible board 26, the flexible board 26 covers the mounting cavity 202 to form an independent acoustic cavity, the speaker 22 is installed in the independent acoustic cavity, and the inner side of the speaker 22 is opposite to the sound outlet holes 203. By using the flexible plate 26 instead of a traditional rigid plastic material, the traditional rigid plastic material reflects sound and generates certain noise. The flexible board 26 will suppress the reflection of sound, and play a role in absorbing sound and reducing noise, so as to make the sound quality of the earphone better.

Be provided with PCB board 27 in the casing 21, above-mentioned base plate portion 231 epirelief is equipped with erection column 234, and the both ends lock of PCB board 27 on erection column 234, and PCB board 234 presses on flexible board 26, and it is fixed through PCB board 27 simultaneously, the ingenious fine fixing of flexible board 26 is on annular portion 232.

The utility model discloses a design focus lies in: cover the installation cavity through adopting the flexbile plate and form independent sound chamber, compare the independent sound chamber that traditional stereoplasm plastic material encloses the configuration, its flexbile plate can restrain the reflection of sound, plays the effect of inhaling the sound and making an uproar to make the tone quality of earphone better.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A noise reduction type headphone with an independent sound cavity comprises a headband and a pair of headphone units, wherein the two headphone units are respectively connected with two ends of the headband, and each headphone unit comprises a shell and a loudspeaker arranged in the shell; the annular part is provided with an installation cavity with an outward opening, and a plurality of sound outlet holes penetrate through the bottom surface of the substrate part corresponding to the installation cavity; the opening of the mounting cavity is covered with a sound-absorbing and noise-reducing flexible plate, the flexible plate covers the mounting cavity to form an independent sound cavity, the loudspeaker is mounted in the independent sound cavity, and the inner side of the loudspeaker is opposite to the sound outlet holes.

2. A noise reducing headphone with an independent acoustic cavity as claimed in claim 1 wherein: the flexible board is made of EVA materials.

3. A noise reducing headphone with an independent acoustic cavity as claimed in claim 1 wherein: the PCB is arranged in the shell, the mounting columns are arranged on the base plate portion in an upwards protruding mode, the two ends of the PCB are locked on the mounting columns, and the PCB is pressed on the flexible plate.

4. A noise reducing headphone with an independent acoustic cavity as claimed in claim 1 wherein: the outer peripheral side edge of the base plate portion is outwards convexly provided with a clamping portion, correspondingly, the shell is concavely provided with a clamping groove, and the clamping portion is inserted into the clamping groove to be fixed.

5. A noise reducing headphone with an independent acoustic cavity as claimed in claim 4 wherein: the joint portion is three that the interval was arranged, and is corresponding, and the draw-in groove is three that the interval was arranged, and three joint portion insert in the draw-in groove that corresponds fixedly.

6. A noise reducing headphone with an independent acoustic cavity as claimed in claim 5 wherein: the headband is provided with a connecting frame, and the lower end of the connecting frame is inserted into one clamping groove; the earphone unit also comprises a power line and an earphone, and the power line and the earphone are respectively led out from the rest two card slots.

7. A noise reducing headphone with an independent acoustic cavity as claimed in claim 1 wherein: the sound outlet holes are honeycomb-shaped.