CN220693313U

CN220693313U - TWS earphone

Info

Publication number: CN220693313U
Application number: CN202321892705.XU
Authority: CN
Inventors: 丁锡三
Original assignee: Xiangqingquan Industry Shenzhen Co ltd
Current assignee: Xiangqingquan Industry Shenzhen Co ltd
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2024-03-29
Anticipated expiration: 2033-07-18

Abstract

A TWS earphone relates to the technical field of wireless earphones, a bottom shell of the earphone is internally provided with a rear sound cavity; the PCBA is arranged in the rear sound cavity and is electrically connected with the loudspeaker; the earphone face shell is arranged at one end of the earphone bottom shell, is arranged in an inter-fit manner with the loudspeaker and is matched with the earphone bottom shell to seal the rear sound cavity; the front sound cavity is arranged in the earphone face shell and is communicated with the rear sound cavity; the loudspeaker is arranged in the front sound cavity and used for emitting sound; the sound outlet hole is arranged on one side of the earphone face shell and is communicated with the front sound cavity; the first air leakage hole is formed in one side of the earphone face shell and communicated with the front sound cavity, so that noise in the front sound cavity can be leaked out. By adopting the technical scheme, the noise can be reduced, the sound quality of the TWS earphone is improved, and the user experience is improved.

Description

TWS earphone

Technical Field

The utility model relates to the technical field of wireless headphones, in particular to a TWS (time varying signal) headphone.

Background

Headphones can be generally classified into wired headphones and wireless headphones. The wireless earphone is favored by more and more users due to inconvenient use of the wired earphone. The wireless earphone comprises a real wireless stereo earphone (True WirelessStereo, TWS), namely TWS earphone. The TWS earphone is a device for transmitting stereo signals based on bluetooth technology, i.e. the left and right earphone receives stereo signals from a playing device such as a mobile phone through bluetooth without any wire connection, so as to realize playback.

In the related art, the TWS earphone mainly comprises a shell, a circuit board accommodated and fixed in the shell, a battery and a sound generating unit. The sound generating unit comprises a loudspeaker arranged in the shell, a front sound cavity arranged in the shell and a sound outlet hole arranged on the shell, and when the sound generating unit is used, the circuit board receives stereo signals from playing equipment such as a mobile phone and the like through Bluetooth, and then controls the loudspeaker to generate sound, so that a user can hear the sound.

However, the TWS earphone in the related art is usually only provided with a sound outlet, so that the sound emitted by the loudspeaker cannot be transmitted out of the sound outlet in time, which results in poor sound quality of the TWS earphone and affects user experience.

Disclosure of Invention

The utility model aims at solving the problems that the TWS earphone in the prior art generally has only one sound outlet, so that sound emitted by a loudspeaker cannot be timely transmitted from the sound outlet, the sound quality of the TWS earphone is poor, and the user experience is affected.

The technical scheme adopted by the utility model is as follows: a TWS headset comprising: a rear sound cavity is formed in the earphone bottom shell; the PCBA is arranged in the rear sound cavity and is electrically connected with the loudspeaker; the earphone face shell is arranged at one end of the earphone bottom shell, is arranged in an inter-fit manner with the loudspeaker and is matched with the earphone bottom shell to seal the rear sound cavity; the front sound cavity is arranged in the earphone face shell and is communicated with the rear sound cavity; the loudspeaker is arranged in the front sound cavity and used for emitting sound; the sound outlet hole is arranged on one side of the earphone face shell and is communicated with the front sound cavity; the first air leakage hole is formed in one side of the earphone face shell and communicated with the front sound cavity, so that noise in the front sound cavity can be leaked out.

Preferably, a second air leakage hole is formed in the earphone bottom shell, the second air leakage hole is formed in one side, away from the earphone surface shell, of the loudspeaker, and the second air leakage hole is communicated with the rear sound cavity.

Preferably, patches for controlling the first air vent and the second air vent are arranged at the first air vent and the second air vent respectively.

Preferably, the patch is made of special plastic.

Preferably, a battery is arranged in the earphone bottom shell, an earphone tail plug is arranged on the earphone bottom shell, the earphone tail plug is located at one end of the earphone shell, which is far away from the earphone surface shell, three charging contacts are arranged on the earphone tail plug and are uniformly distributed on the side wall of the earphone tail plug, and the three charging contacts are electrically connected with the battery.

Preferably, the earphone face shell is internally provided with a sound nozzle inner cover, the sound nozzle inner cover is positioned in the front sound cavity, and the sound nozzle inner cover is fixedly arranged at the sound outlet.

Preferably, the sound outlet hole is further provided with a dust screen, the dust screen is arranged along the circumference of the sound outlet hole, and the dust screen is fixedly arranged on the inner side of the sound outlet hole.

Preferably, a magnet is arranged in the earphone bottom shell.

Preferably, both sides of the earphone bottom shell are vertically provided with undercut platforms, and the undercut platforms are symmetrically arranged on both sides of the earphone bottom shell.

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

1. when the TWS earphone is used, sound emitted by the loudspeaker is transmitted into the front sound cavity, a part of sound is transmitted into the ears of a user through the sound outlet, so that the user can hear the sound, a part of noise generated by the loudspeaker in the front sound cavity is discharged through the first air discharge hole, and a part of noise is transmitted into the rear sound cavity and discharged through the second air discharge hole, so that the noise heard by the user is reduced, the tone quality of the sound emitted by the TWS earphone is improved, and the user experience is further improved;

2. according to the earphone tail plug and the charging device, the earphone tail plug is matched with the three charging contacts, so that the earphone tail plug can randomly select two charging contacts as charging positions during charging, and the charging efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic diagram of an explosive structure of the present embodiment;

reference numerals illustrate: 1. an earphone bottom shell; 11. a rear sound cavity; 12. a second vent hole; 13. a magnet; 14. a undercut platform; 2. earphone face-piece; 21. a front sound cavity; 22. a sound outlet hole; 23. a dust screen; 24. an inner cap of the mouthpiece; 25. a first vent hole; 26. a patch; 3. a tail plug of the earphone; 31. and a charging contact.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-2.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and those skilled in the art can make modifications to the present embodiment which do not contribute to the utility model as required after reading the present specification, but are protected by the patent laws within the scope of the appended claims.

The embodiment relates to a TWS earphone, refer to fig. 1 and 2, including earphone drain pan 1 and earphone face-piece 2, back sound chamber 11 has been seted up to the inside of earphone drain pan 1, back sound chamber 11 size and earphone drain pan 1 looks adaptation, back sound chamber 11 still is provided with the PCBA with loudspeaker electric connection, PCBA has bluetooth communication function for receive stereo signal that playback devices such as cell-phone sent, earphone face-piece 2 is used for cooperating with earphone drain pan 1, in order to realize the closure to back sound chamber 11.

The earphone face case 2 is located the one end of earphone drain pan 1, and earphone face case 2 inside is equipped with preceding sound chamber 21, and preceding sound chamber 21 communicates with back sound chamber 11, is provided with the loudspeaker that is used for making sound in the back sound chamber 11, and loudspeaker seal is fixed in preceding sound chamber 11.

Referring to fig. 1 and 2, the earphone face case 2 is provided with a sound outlet hole 22 for sound in the front sound cavity 21 to pass out, the sound outlet hole 22 is in an oval shape, the sound outlet hole 22 is provided at the front end of the earphone face case 2, and the sound outlet hole 22 is communicated with the front sound cavity 21. The sound outlet hole 22 is provided with a dust screen 23 for preventing external dust from entering, the dust screen 23 is provided along the circumferential direction of the sound outlet hole 22, and the dust screen 23 is fixedly mounted on the inner side of the sound outlet hole 22.

In order to ensure better sound quality effect of the sound outlet 22, the earphone face shell 2 is also provided with a sound nozzle inner cover 24, the sound nozzle inner cover 24 is positioned in the front sound cavity 21, and the sound nozzle inner cover 24 is fastened and fixed at the sound outlet 22.

Further, in order to avoid the noise generated by the speaker while making a sound, the earphone face case 2 is provided with a first air vent 25, the first air vent 25 is located on a side wall of the earphone face case 2, and the first air vent 25 is communicated with the front sound cavity 21. In this embodiment, the first air vent hole 25 is located at a side of the earphone face case 2 away from the sound outlet hole 22, and in other embodiments, the first air vent hole 25 may be located at other positions of the side wall of the earphone face case 2, which is not limited herein.

Further, referring to fig. 1 and 2, a second air vent 12 is further formed on the earphone housing, the second air vent 12 is located at a side of the speaker facing the back tone cavity 11, and the second air vent 12 is communicated with the interior of the back tone cavity 11.

Further, patches 26 for controlling the first and second air release holes 25 and 12 are provided at the first and second air release holes 25 and 12, respectively, and the sizes of the two patches 26 are adapted to the first and second air release holes 25 and 12, respectively. In this embodiment, the patch 26 is black to enhance the aesthetic appearance, and the material of the patch 26 is special plastic (abs+pc), but in other embodiments, other colors may be provided, and the material may be other materials, which is not limited herein.

Further, be provided with the battery in the earphone drain pan 1, battery and PCBA electric connection for to PCBA power supply, still be provided with the earphone tail plug 3 on the earphone drain pan 1, earphone tail plug 3 is located the earphone casing and keeps away from the one end of earphone face-piece 2, is provided with three contact 31 that charges on the earphone tail plug 3, and three contact 31 evenly distributed that charges in the lateral wall of earphone tail plug 3, and three contact 31 that charges all with battery electric connection, when making the earphone put into the storehouse that charges, can select two contact 31 that charge wantonly as charging potential, improved charging efficiency.

It should be noted that, in this embodiment, the speaker, the PCBA and the battery are not shown in the drawings, and in the specific implementation process, the structure can be used to assemble speakers, PCBA and batteries with different sizes and models in the earphone bottom case 1 according to actual requirements. Wherein, loudspeaker is located in the preceding sound chamber in earphone face-piece 2, and PCBA and battery all are located back sound intracavity 11, and PCBA and battery can locate the earphone casing and be close to the one end of earphone tail plug 3.

Further, a magnet 13 is further arranged in the earphone bottom shell 1, and the magnet 13 is positioned at the joint of the earphone bottom shell 1 and the earphone face shell 2. Magnet 13 can fix a position fixed earphone drain pan 1 with the storehouse cooperation that charges when charging, makes the interface that charges that contacts 31 can stablely butt in the storehouse that charges on the earphone tail plug 3 to the condition that earphone drain pan 1 takes place the aversion when charging to influence the effect of charging takes place.

Further, the two sides of the earphone bottom shell 1 are vertically provided with the undercut platforms 14, the two undercut platforms 14 are symmetrically arranged on the two sides of the earphone shell, and the TWS earphone is not easy to slide down when a user grabs the TWS earphone by hands through the arrangement of the undercut platforms 14. In addition, in other embodiments, an inductor may be disposed in the undercut platform, and the inductor is electrically connected to the PCBA, so that the undercut platform may be knocked to answer a phone call and start or stop playing music.

The working principle of the utility model is approximately as follows: when the sound emitting device is used, the PCBA receives stereo signals emitted by playing equipment such as a mobile phone and the like through Bluetooth, transmits the received stereo signals to the loudspeaker, controls the loudspeaker to emit sound, transmits the sound emitted by the loudspeaker to the front sound cavity 21 and then emits the sound through the sound emitting hole 22, so that a user can hear the sound, and part of the sound is emitted through the first air emitting hole 25 and the second air emitting hole 12, thereby reducing the noise generation condition, improving the tone quality of the sound emitted by the TWS earphone, and further improving the use experience of the user.

The above description is only for the purpose of illustrating the technical solution of the present utility model and not for the purpose of limiting the same, and other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. A TWS headset, comprising:

a rear sound cavity (11) is formed in the earphone bottom shell (1);

the earphone face shell (2) is arranged at one end of the earphone bottom shell (1) and matched with the earphone bottom shell (1) to seal the rear sound cavity (11);

a front sound cavity (21) which is arranged in the earphone face shell (2) and is communicated with the rear sound cavity (11);

a horn provided in the front sound chamber (21) for emitting sound;

a sound outlet hole (22) which is arranged on one side of the earphone face shell (2) and is communicated with the front sound cavity (21);

a first air leakage hole (25) which is arranged at one side of the earphone surface shell (2) and is communicated with the front sound cavity (21) so as to enable noise in the front sound cavity (21) to be leaked out; and

and the PCBA is arranged in the rear sound cavity (11) and is electrically connected with the loudspeaker.

2. The TWS headset of claim 1, wherein the headset bottom shell (1) is provided with a second air vent (12), the second air vent (12) is located at one side of the speaker away from the headset face shell (2), and the second air vent (12) is communicated with the rear sound cavity (11).

3. The TWS earphone according to claim 2, characterized in that patches (26) for controlling the first and second venting holes (25, 12), respectively, are provided at the first and second venting holes (25, 12).

4. The TWS headset of claim 1, wherein a battery is disposed in the rear sound cavity (11), a headset tail plug (3) is disposed on the headset bottom shell (1), the headset tail plug (3) is located at one end of the headset shell, which is far away from the headset face shell (2), three charging contacts (31) are disposed on the headset tail plug (3), the three charging contacts (31) are uniformly distributed on the side wall of the headset tail plug (3), and the three charging contacts (31) are electrically connected with the battery.

5. The TWS earphone according to claim 1, characterized in that an inner cover (24) is provided in the earphone housing (2), the inner cover (24) is located in the front sound cavity (21), and the inner cover (24) is fixedly mounted at the sound outlet (22).

6. The TWS earphone according to claim 1, characterized in that a dust screen (23) is further provided at the sound outlet hole (22), the dust screen (23) is disposed along the circumference of the sound outlet hole (22), and the dust screen (23) is fixedly mounted inside the sound outlet hole (22).

7. The TWS earphone according to claim 1, characterized in that a magnet (13) is provided in the earphone bottom shell (1).

8. The TWS headset of claim 1, wherein the two sides of the headset bottom shell (1) are vertically provided with undercut platforms (14), and the two undercut platforms (14) are symmetrically arranged on the two sides of the headset bottom shell (1).