CN215601472U

CN215601472U - TWS earphone with interval type cavity structure

Info

Publication number: CN215601472U
Application number: CN202121218794.0U
Authority: CN
Inventors: 温增丰; 郑虎鸣; 薛辉; 车华全
Original assignee: Transound Electronics Co Ltd
Current assignee: Transound Electronics Co Ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-01-21
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a TWS earphone with a spaced cavity structure, which comprises an earphone main body, wherein the earphone main body is provided with an inner cavity, a spacing part is arranged in the earphone main body, the spacing part divides the inner cavity into a first sound cavity and an installation cavity which are not communicated, a circuit board is arranged in the installation cavity, a noise reduction module is arranged in the first sound cavity and is connected with the circuit board, the noise reduction module comprises a loudspeaker and a cover plate which covers one side of the loudspeaker, a second sound cavity is formed between the cover plate and the loudspeaker, and the second sound cavity is communicated with the first sound cavity; therefore, the earphone frequency response curve isolation structure is provided with the independent sound cavity and the independent installation cavity, so that the effective separation of the acoustic cavity and the installation space of the circuit board is realized, and the influence of each element and the assembly process on the earphone frequency response curve can be reduced.

Description

TWS earphone with interval type cavity structure

Technical Field

The utility model relates to the technical field of earphones, in particular to a TWS earphone with a spaced cavity structure.

Background

Due to the technical progress, consumers have promoted from the prior wired earphone to the wireless earphone, and then from the wireless earphone to the left earphone and the right earphone, both the left earphone and the right earphone are wireless earphones, namely, the true wireless earphone (namely, the wireless bluetooth earphone) is called on the market, and the wireless earphone is convenient to carry and use. The acoustic cavity of the real wireless earphone in the prior art needs to be set and adjusted in mounting position between each element to complete sound effect adjustment, and the acoustic cavity and the circuit board mounting space are effectively separated in a wireless mode, so that the influence of each element and the assembly process on the frequency response curve of the earphone is large.

Therefore, a new technology needs to be developed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the above, the main object of the present invention is to provide a TWS earphone with a spaced cavity structure, which has an independent sound cavity and an independent installation cavity, so as to effectively separate the acoustic cavity from the circuit board installation space, and reduce the influence of each component and the assembly process on the frequency response curve of the earphone.

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

the utility model provides a TWS earphone with spaced cavity structures, including the earphone main part, this earphone main part has the inner chamber, be provided with a spacing portion in this earphone main part, first sound chamber and installation cavity that this spacing portion separated into not being linked together with the inner chamber, be provided with the circuit board in this installation cavity, the module of making an uproar falls in this first sound intracavity, this module of making an uproar is connected in the circuit board, should fall the module of making an uproar and include that loudspeaker and lid locate the apron of loudspeaker one side, be formed with the second sound chamber between this apron and the loudspeaker, this second sound chamber communicates in first sound chamber.

As a preferred scheme, the earphone body is connected with an ear cap, the ear cap is provided with a sound guide cavity, and the sound guide cavity is communicated with the first sound cavity.

Preferably, the earphone body is connected with an ear hook.

Preferably, the ear hook is detachably connected to the earphone body.

As a preferred scheme, an optical sensor is arranged on the earphone body, the optical sensor is connected to the circuit board, and the optical sensor is exposed on the surface of the earphone body.

Preferably, a decoration is disposed on a surface of the earphone body corresponding to the optical sensor, and the optical sensor is located inside the decoration.

As a preferred scheme, the cover plate is provided with an exhaust hole which is respectively communicated with the first sound cavity and the second sound cavity.

As a preferable scheme, a battery is arranged in the first sound cavity, and the battery is connected to the circuit board.

As a preferred scheme, the partition part is provided with a wire passing hole, and the wire passing hole is respectively communicated with the first sound cavity and the installation cavity.

Preferably, the earphone body comprises a first shell and a second shell which are spliced with each other, a sound guiding shell is connected to one side of the first shell, which faces away from the second shell, the partition part is formed on the first shell, the partition part, the first shell and the sound guiding shell form the first sound cavity in a surrounding manner, and the partition part, the first shell and the second shell form the mounting cavity in a surrounding manner.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and particularly, as can be seen from the technical scheme, which is mainly characterized in that a spacing part is arranged in an earphone main body, so that the spacing part divides the inner cavity of the earphone main body into a first sound cavity and a mounting cavity which are not communicated, the noise reduction module and the circuit board are respectively arranged in the first sound cavity and the mounting cavity, so that the noise reduction module is provided with an independent sound cavity and an independent mounting cavity, thereby realizing effective separation of the acoustic cavity and the circuit board mounting space, reducing the influence of each element and the assembly process on the frequency response curve of the earphone, and, the second sound cavity is formed between the loudspeaker and the cover plate of the noise reduction module, so that the design of the noise reduction module with the sound cavity is realized, the stable consistency of the noise reduction module is ensured, therefore, the sound effect does not need to be additionally adjusted in the process of assembling the earphone, the assembling difficulty can be reduced, and the manufacturing quality is improved.

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

Drawings

FIG. 1 is a perspective view of the overall structure of an embodiment of the present invention;

FIG. 2 is another angular schematic view of the structure shown in FIG. 1;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is an exploded view of an embodiment of the present invention;

FIG. 5 is another angular schematic view of the structure shown in FIG. 4;

FIG. 6 is another exploded view of an embodiment of the present invention;

fig. 7 is another angular schematic of the structure shown in fig. 6.

The attached drawings indicate the following:

10. earphone body 11, first casing

12. Second shell 13, leading sound shell

14. Receiving part 141 and inserting part

142. First body 143, second body

20. Spacer 21 and wire hole

30. First sound cavity 40 and mounting cavity

50. Circuit board 60 and noise reduction module

70. Cover plate 80 and ear cap

101. Optical sensor 102, decoration

103. Battery 104 and ear hook

1041. Plug-in cavity 105 and charging module

106. Microphone subassembly.

Detailed Description

Referring to fig. 1 to 7, specific structures of embodiments of the present invention are shown.

The utility model provides a TWS earphone with spaced cavity structures, including earphone main part 10, this earphone main part 10 has the inner chamber, be provided with a spacing portion 20 in this earphone main part 10, this spacing portion 20 separates into first sound chamber 30 and installation cavity 40 that are not linked together with the inner chamber, be provided with circuit board 50 in this installation cavity 40, this circuit board 50 is the PCBA board, be provided with in this first sound chamber 30 and fall the module 60 of making an uproar, this falls the module 60 of making an uproar and connects in circuit board 50, this falls the module 60 of making an uproar and includes that loudspeaker and lid locate the apron 70 of loudspeaker one side, be formed with the second sound chamber between this apron 70 and the loudspeaker, this second sound chamber communicates in first sound chamber 30. So, through set up spacer 20 in earphone main part 10, make spacer 20 separate into the inner chamber of earphone main part 10 and be not linked together first sound chamber 30 and installation cavity 40 to will fall and fall module 60 and circuit board 50 and locate first sound chamber 30 respectively, in the installation cavity 40, make it possess independent sound chamber and independent installation cavity 40, thereby realized the effective separation of acoustics cavity and circuit board 50 installation space, can reduce the influence of each component and assembly process to the earphone frequency response curve. And, the noise reduction module 60 has already calibrated the curve according to chip algorithm and listening style, does not need to adjust the audio separately, install and use simply and swiftly promptly.

Preferably, in this embodiment, the earphone body 10 is connected with an ear cap 80, and the ear cap 80 has a sound guiding cavity, and the sound guiding cavity is communicated with the first sound cavity 30.

Preferably, in this embodiment, the earphone body 10 is provided with an optical sensor 101, the optical sensor 101 is connected to the circuit board 50, and the optical sensor 101 is exposed on the surface of the earphone body 10; a decoration 102 is disposed on the surface of the earphone body 10 corresponding to the optical sensor 101, and the optical sensor 101 is located inside the decoration 102.

The cover plate 70 is provided with an air vent which is respectively communicated with the first sound cavity 30 and the second sound cavity; in addition, in the present embodiment, a cavity is formed on a side of the cover plate 70 facing the speaker to form the second sound cavity with the speaker enclosure, so that the noise reduction module 60 can be designed as a self-contained sound cavity.

A battery 103 is disposed in the first sound cavity 30, the battery 103 is connected to the circuit board 50, and the battery 103 is located on a side of the noise reduction module 60 facing the partition portion 20. In this embodiment, the battery 103 is preferably a lithium battery 103.

The earphone body 10 includes a first housing 11 and a second housing 12 which are spliced with each other, a sound guiding shell 13 is connected to a side of the first housing 11 facing away from the second housing 12, the partition 20 is formed on the first housing 11, the partition 20, the first housing 11 and the sound guiding shell 13 form the first sound cavity 30, and the partition 20, the first housing 11 and the second housing 12 form the mounting cavity 40. The battery 103 is positioned on the first housing 11 on a side of the partition 20 facing the sound guiding shell 13. The partition part 20 is provided with a wire passing hole 21, and the wire passing hole 21 is respectively communicated with the first sound cavity 30 and the installation cavity 40. Here, the wire through hole 21 is closed after the electronic components inside the earphone are assembled and connected, and may be closed by gluing, sealing, or the like, so as to seal and separate the first sound cavity 30 from the mounting cavity 40.

The ear cap 80 is connected to one side of the sound guide shell 13 back to the first shell 11; the decorative piece 102 is arranged on the sound guide shell 13 and is positioned at one side of the ear cap 80; the optical sensor 101 is mounted on one side of the sound guide shell 13 facing the first shell 11, the noise reduction module 60 is connected to the circuit board 50 through an electrical connection portion, one end of the electrical connection portion extends into the mounting cavity 40 through the wire hole 21 and is connected to the circuit board 50, and the optical sensor 101 is connected to the other end of the electrical connection portion.

An ear hook 104 is connected to the earphone main body 10. Preferably, in this embodiment, the ear hook 104 is detachably connected to the earphone main body 10. Specifically, one end of the ear hook 104 is provided with a first connecting portion, the earphone body 10 has a second connecting portion, the first connecting portion is detachably connected to the second connecting portion, and the other end of the ear hook 104 is a free end. One of the first connecting portion and the second connecting portion is an insertion cavity 1041, and the other is an insertion portion 141; the plug portion 141 is detachably connected to the plug cavity 1041. In this embodiment, the first connecting portion is an inserting cavity 1041, and the second connecting portion is an inserting portion 141. So, through the design of ear-hang 104, can make wearing of earphone more firm to and, through the design with detachable connection in earphone main part 10 of ear-hang 104, make it realize the dismantled and assembled changeable formula setting of ear-hang 104, make it can change different ear-hang 104 to different users, improved user's experience effect.

In this embodiment, the earphone body 10 is connected to the receiving portion 14, the inserting portion 141 is convexly disposed at the upper end of the receiving portion 14, the receiving portion 14 is internally provided with the charging module 105 and the microphone assembly 106, the charging module 105 and the microphone assembly 106 are respectively connected to the circuit board 50, the charging module 105 has a charging contact exposed on the surface of the receiving portion 14, and the microphone assembly 106 is disposed at the lower end of the receiving portion 14. The receiving portion 14 includes a first body 142 and a second body 143 that are spliced with each other, the first body 142 and the second body 143 are respectively and integrally connected to the first casing 11 and the second casing 12, and the inserting portion 141 is convexly disposed at the upper end of the second body 143.

In summary, the design of the present invention is characterized in that the spacer is disposed in the earphone main body, so that the spacer partitions the inner cavity of the earphone main body into a first sound cavity and a mounting cavity that are not communicated with each other, and the noise reduction module and the circuit board are respectively disposed in the first sound cavity and the mounting cavity, so that the noise reduction module has an independent sound cavity and an independent mounting cavity, thereby achieving effective separation of the acoustic cavity and the mounting space of the circuit board, reducing the influence of each component and assembly process on the frequency response curve of the earphone, and forming a second sound cavity between the speaker of the noise reduction module and the cover plate, so that the noise reduction module is designed in a self-contained sound cavity manner, ensuring stable consistency of the noise reduction module, thereby eliminating the need of adjusting sound effect additionally during the earphone assembly process, reducing the assembly difficulty, and improving the quality of the manufacture.

Claims

1. A TWS earphone with spaced cavity structure, its characterized in that: including the earphone main part, this earphone main part has the inner chamber, is provided with a spacer in this earphone main part, and first sound chamber and installation cavity that are not linked together are separated into with the inner chamber to this spacer, are provided with the circuit board in this installation cavity, and the module of making an uproar should fall to be provided with in this first sound intracavity and fall, should fall the module of making an uproar and connect in the circuit board, should fall the module of making an uproar and include loudspeaker and the apron of locating loudspeaker one side of lid, is formed with the second sound chamber between this apron and the loudspeaker, and this second sound chamber communicates in first sound chamber.

2. A TWS earphone as claimed in claim 1 having a spaced cavity structure, wherein: the earphone body is connected with an earcap, the earcap is provided with a sound guide cavity, and the sound guide cavity is communicated with the first sound cavity.

3. A TWS earphone as claimed in claim 1 having a spaced cavity structure, wherein: the earphone body is connected with an ear hook.

4. A TWS earphone as claimed in claim 3 having a spaced cavity structure wherein: the ear-hang is detachably connected with the earphone main body.

5. A TWS earphone as claimed in claim 1 having a spaced cavity structure, wherein: the earphone body is provided with an optical sensor, the optical sensor is connected to the circuit board, and the optical sensor is exposed on the surface of the earphone body.

6. A TWS earphone as claimed in claim 5 having a spaced cavity structure wherein: a decoration is arranged on the surface of the earphone body corresponding to the optical sensor, and the optical sensor is positioned on the inner side of the decoration.

7. A TWS earphone as claimed in claim 1 having a spaced cavity structure, wherein: the cover plate is provided with exhaust holes which are respectively communicated with the first sound cavity and the second sound cavity.

8. A TWS earphone as claimed in claim 1 having a spaced cavity structure, wherein: a battery is arranged in the first sound cavity and connected to the circuit board.

9. A TWS earphone as claimed in claim 1 having a spaced cavity structure, wherein: the partition part is provided with a wire passing hole which is respectively communicated with the first sound cavity and the installation cavity.

10. A TWS earphone as claimed in claim 1 having a spaced cavity structure, wherein: the earphone main body comprises a first shell and a second shell which are spliced with each other, one side, back to the second shell, of the first shell is connected with a sound guiding shell, a spacing part is formed on the first shell, a surrounding structure is formed among the spacing part, the first shell and the sound guiding shell, so that the first sound cavity is formed, and a surrounding structure is formed among the spacing part, the first shell and the second shell, so that the installation cavity is formed.