CN210609626U

CN210609626U - Bass earphone

Info

Publication number: CN210609626U
Application number: CN201922031290.7U
Authority: CN
Inventors: 彭文军
Original assignee: Beijing Edifier Technology Co Ltd
Current assignee: Beijing Edifier Technology Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-05-22
Anticipated expiration: 2029-11-20

Abstract

The utility model relates to an audio equipment technical field specifically discloses a bass earphone, include: the device comprises a shell, a shell and a cover, wherein an accommodating cavity is formed in the shell; the partition plate is positioned in the accommodating cavity and divides the accommodating cavity into a first cavity and a second cavity, and a plate through hole for communicating the first cavity with the second cavity is formed in the partition plate; a speaker secured in the first chamber; and the phase inversion pipe is positioned in the second cavity, one end of the phase inversion pipe is communicated with the plate through hole, and the other end of the phase inversion pipe is communicated with the external space of the shell. The utility model provides a bass earphone has better bass effect.

Description

Bass earphone

Technical Field

The utility model relates to an audio equipment technical field especially relates to a bass earphone.

Background

With the improvement of living standard, people have higher and higher requirements on the sound quality of the earphone playing sound. Generally, the sound includes a high pitch range, a middle pitch range and a low pitch range, and different earphone structures can reinforce different ranges, for example, the high pitch range of some earphones is more prominent, and the low pitch effect of some earphones is better. Therefore, developers often need to design the earphone according to different preference requirements of the register.

Currently, bass earphones occupy a relatively large area in the earphone market, and therefore, how to improve the earphone structure to have a good bass effect has become a major research point for those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bass earphone has better bass effect.

For reaching above purpose, the utility model provides a bass earphone, include:

the device comprises a shell, a shell and a cover, wherein an accommodating cavity is formed in the shell;

the partition plate is positioned in the accommodating cavity and divides the accommodating cavity into a first cavity and a second cavity, and a plate through hole for communicating the first cavity with the second cavity is formed in the partition plate;

a speaker secured in the first chamber;

and the phase inversion pipe is positioned in the second cavity, one end of the phase inversion pipe is communicated with the plate through hole, and the other end of the phase inversion pipe is communicated with the external space of the shell.

Preferably, the loudspeaker divides the first chamber into a front cavity far away from the second chamber and a back cavity close to the second chamber, and the diameter of the phase inversion tube is smaller than that of the back cavity.

Preferably, an annular sealing gasket is arranged on the periphery of the hole at one end of the plate through hole, which is close to the inverter tube, and the sealing gasket is positioned between the partition plate and the inverter tube.

Preferably, the partition plate is provided with an annular groove, and one side of the sealing gasket is inserted into the annular groove.

Preferably, the housing includes a front case and a rear case, the speaker is fixed in the front case, and the partition plate is fixed in the rear case.

Preferably, a shell through hole is formed in the top of the rear shell, and the other end of the inverter tube is communicated with the shell through hole.

Preferably, the inverter tube includes a horizontal tube section perpendicular to the partition plate and a vertical tube section perpendicular to the horizontal tube section.

Preferably, a dustproof net is arranged between the shell through hole and the inverter tube.

Preferably, the corners of the inner wall of the inverter tube are in a circular arc structure.

The beneficial effects of the utility model reside in that: according to the bass earphone provided by the embodiment, part of sound waves coming out of the loudspeaker sequentially pass through the first chamber, the plate through hole and the phase-reversing tube and finally enter human ears; compared with the plate through hole and the inverter tube, the first chamber has a large space, and when sound waves enter the plate through hole and the inverter tube with a small space from the first chamber with the large space, the vibration motion of the sound waves in the inverter tube is enhanced by a large space volume difference value, and finally a better bass effect is obtained.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a bass earphone provided in an embodiment.

In the figure:

1. a front housing; 2. a rear housing; 201. a shell through hole; 3. a partition plate; 301. a plate through hole; 4. a speaker; 5. an inverter tube; 501. a circular arc structure; 502. a horizontal pipe section; 503. a vertical pipe section; 6. a gasket; 7. a first chamber; 701. a front cavity; 702. a rear cavity; 8. a second chamber; 9. a dust screen.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1, the present embodiment provides a bass headphone including a housing, a partition plate 3, a speaker 4, and an inverter tube 5. The inside of casing is equipped with the holding chamber. The partition plate 3 is located in the accommodating cavity and divides the accommodating cavity into a first cavity 7 and a second cavity 8, and a plate through hole 301 for communicating the first cavity 7 with the second cavity 8 is formed in the partition plate 3. The loudspeaker 4 is fixed in the first chamber 7. The inverter tube 5 is located in the second chamber 8, and has one end communicating with the plate through hole 301 and the other end communicating with the external space of the case.

Preferably, the partition plate 3 is hermetically connected with the inner wall of the housing through glue, so that the first chamber is not communicated with the second chamber.

It should be noted that, in the bass earphone provided in this embodiment, a part of sound waves coming out of the speaker 4 will sequentially pass through the first chamber 7, the plate through hole 301 and the inverter tube 5 and finally enter human ears; compared with the plate through hole 301 and the inverter tube 5, the first chamber 7 has a large space, and when sound waves enter the plate through hole 301 and the inverter tube 5 which have a small space from the first chamber 7 with a large space, a large space volume difference can strengthen the vibration motion of the sound waves in the inverter tube 5, so that the sound wave radiation efficiency is improved, the low-frequency response is expanded, and finally, stronger sound waves are flushed out from the inverter tube 5, so that the sound waves are enhanced, and the bass is better. Thus, the sound waves in front of and behind the speaker 4 are used, and the sound quality is improved.

It is understood that the bass effect can be further optimized by increasing the difference in space between the first chamber 7 and the inverter tube 5, because the bass part is more prominent and the more intense the vibration generated by the sound wave is as the difference in space volume between the first chamber 7 and the inverter tube 5 is larger.

In this embodiment, the speaker 4 divides the first chamber 7 into a front chamber 701 far from the second chamber 8 and a rear chamber 702 near the second chamber 8, and the diameter of the inverter tube 5 is smaller than that of the rear chamber 702.

The bass earphone provided by the embodiment takes the whole first chamber 7 as a sound outlet space, which is beneficial to ensuring that a larger space volume difference is still formed before and after the plate through hole 301 when the inverter tube 5 with a larger diameter is used, and even has a better bass effect when the diameter of the inverter tube 5 is larger than that of the sound outlet hole. The bass earphone provided by the embodiment can design the phase inversion pipe 5 with a larger diameter, so that sound waves are reflected more sufficiently, mixing sound and distortion are not easy to generate, and better sound quality is obtained.

In this embodiment, an annular gasket 6 is disposed on the periphery of the orifice of the plate through hole 301 near one end of the inverter tube 5, and the gasket 6 is located between the partition plate 3 and the inverter tube 5.

Preferably, the gasket 6 is EVA foam. EVA is copolymerized by ethylene and acetic acid, and has the Chinese cultural name: ethylene-vinyl acetate copolymer. The EVA foam is adopted as the sealing gasket 6, so that the sealing effect is excellent, the sealing performance between the phase inversion tube 5 and the partition plate 3 is ensured, and the distortion caused by sound wave leakage can be prevented.

Further, an annular groove is formed in the partition plate 3, and one side of the sealing gasket 6 is inserted into the annular groove. In particular, the annular groove may play a role in positioning and fixing the seal 6.

In this embodiment, the housing includes a front case 1 and a rear case 2, the speaker 4 is fixed in the front case 1, and the partition plate 3 is fixed in the rear case 2. Typically, the front housing 1 also has an earphone hole, from which another part of the sound waves coming out of the loudspeaker 4 will enter the human ear.

Specifically, the inverter pipe 5 includes a horizontal pipe section 502 perpendicular to the partition plate 3 and a vertical pipe section 503 perpendicular to the horizontal pipe section 502. The top of the rear shell 2 is provided with a shell through hole 201, and the upper end of the vertical pipe section 503 is communicated with the shell through hole 201. It will be appreciated that sound waves entering inverter tube 5 will enter the human ear through shell through-hole 201. The case penetration hole 201 is provided at the top of the rear case 2 to prevent the case penetration hole 201 from being blocked by human ears.

Optionally, a dust screen 9 is disposed between the casing through hole 201 and the inverter tube 5. It will be appreciated that the dust screen 9 prevents dust from entering the inverter tube 5, extending the life of the woofer.

Preferably, the corner of the inner wall of the inverter tube 5 is a circular arc structure 501. It should be noted that the arc structure 501 can reduce the reflection loss of the sound wave in the inverter tube 5, thereby reducing the distortion.

Optionally, the partition plate 3 is a circuit board. Specifically, because the circuit board is the necessary device of earphone, adopt the circuit board as division board 3 can realize divided purpose, can reduce newly-increased required space of division board 3 again, be favorable to improving the space utilization in the holding chamber.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A bass headphone, comprising:

a speaker secured in the first chamber;

2. The bass headphone of claim 1, wherein the speaker divides the first chamber into a front chamber distal from the second chamber and a back chamber proximal to the second chamber, the inverter tube having a diameter smaller than a diameter of the back chamber.

3. The bass phone of claim 1, wherein an annular gasket is disposed around the opening of the plate through hole near one end of the inverter tube, and the gasket is located between the partition plate and the inverter tube.

4. The bass headphones of claim 3, wherein the partition plate is provided with an annular groove into which one side of the gasket is inserted.

5. The bass headphones of claim 1, wherein the housing comprises a front shell and a rear shell, the speaker being secured in the front shell, the divider plate being secured in the rear shell.

6. The bass earphone according to claim 5, wherein a housing through hole is provided at a top of the rear housing, and the other end of the inverter tube communicates with the housing through hole.

7. The bass headphones of claim 1 or 6, wherein the inverter tube comprises a horizontal tube section perpendicular to the divider plate and a vertical tube section perpendicular to the horizontal tube section.

8. The bass earphone of claim 6, wherein a dust screen is disposed between the housing through hole and the inverter tube.

9. The bass earphone of claim 1, wherein corners of an inner wall of the inverter tube are in a circular arc structure.

10. The bass headphones of claim 1, wherein the divider plate is a circuit board.