CN212413401U - True wireless earphone with active noise reduction function - Google Patents
True wireless earphone with active noise reduction function Download PDFInfo
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- CN212413401U CN212413401U CN202021464500.8U CN202021464500U CN212413401U CN 212413401 U CN212413401 U CN 212413401U CN 202021464500 U CN202021464500 U CN 202021464500U CN 212413401 U CN212413401 U CN 212413401U
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Abstract
The utility model discloses a real wireless earphone with active noise reduction, which comprises an earphone shell, and an active noise reduction module, a loudspeaker module, an in-ear detection module and a control module which are arranged in the earphone shell; the earphone shell is internally provided with a volume cavity, the exterior of the earphone shell is provided with an ear inlet end, the ear inlet end is communicated with the volume cavity through a sound outlet pipeline, and a sound outlet hole is formed in the ear inlet end; the active noise reduction module is arranged in the sound outlet pipeline; the in-ear detection module, the loudspeaker module and the control module are all arranged in the volume cavity; the in-ear detection module is used for in-ear detection; the loudspeaker module is used for converting the electric signal into a sound signal; the control module is connected with the active noise reduction module, the in-ear detection module and the loudspeaker module and used for carrying out signal interaction on the active noise reduction module, the in-ear detection module and the loudspeaker module. The utility model discloses a sound effect of making an uproar is better to true wireless headset's the sound of making an uproar of falling, and should fall the equipment of the sound headset of making an uproar simple more convenient.
Description
Technical Field
The utility model relates to a bluetooth headset specifically is a true wireless earphone of making an uproar falls in initiative.
Background
The method of noise reduction for headphones generally has two types, one is active noise reduction and the other is passive noise reduction. The active noise reduction earphone generates reverse sound waves equal to external noise through a noise reduction system, and neutralizes the noise, so that the noise reduction effect is achieved. The passive noise reduction earphone mainly forms a closed space by surrounding ears, or adopts sound insulation materials such as silica gel earplugs and the like to block external noise.
Among the prior art, the earphone of making an uproar falls for passive form usually, forms through sound insulation material and blocks the space around the ear to block the noise, but the effect of this mode separation noise is limited, and can only block high frequency noise usually, and it is not obvious to low frequency noise reduction effect. Moreover, the volume and weight of the earphone provided with the sound insulation material are usually large, which affects the use of users.
Therefore, many kinds of earphones with active noise reduction appear in the market, for example, the utility model patent with the publication number of CN210670507U discloses "a noise reduction earphone main body and noise reduction earphone", the utility model patent with the publication number of CN210469674U discloses "earphone noise reduction structure and earphone", and the like; foretell noise reduction earphone adopts the mode of initiatively making an uproar, and the microphone subassembly that lies in front chamber or back chamber promptly can communicate through passageway and front chamber or back chamber, and when there is the noise in the earphone shell, the microphone subassembly can be timely accurate monitoring noise and generate noise signal to with the noise signal transmission to the noise reduction module of making an uproar in the earphone of making an uproar, noise reduction module can send the sound opposite with this noise sound wave phase place according to this noise, in order to offset this noise.
However, the active noise reduction earphone described above has the following problems:
(1) the volume intracavity of the shell cavity is generally installed to the microphone subassembly in the above-mentioned earphone of making an uproar that falls initiatively, and other components and parts such as optical induction sensor in the earphone are also installed in the volume chamber of shell cavity moreover, can reduce the volume in the volume chamber of shell cavity like this, lead to each components and parts emergence of the volume intracavity of shell cavity to interfere easily to influence the performance of earphone. In addition, since the volume of the volume chamber of the housing cavity is reduced, the components of the earphone cannot be optimally mounted, which also affects the performance of the earphone. In addition, the components and parts in the earphone are all installed in a concentrated mode in the volume cavity of the shell cavity, so that the assembly difficulty of the earphone can be increased, the number of the components and parts needing to be installed is large when the earphone is produced and assembled, the working procedures are long, operation is complex, and mass production consistency cannot be guaranteed.
(2) The noise reduction function of the active noise reduction earphone is still to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses lie in overcoming prior art's not enough, provide a real wireless earphone of making an uproar falls in initiative, real wireless earphone's the audio effect of making an uproar that falls is better, and the equipment of this noise reduction earphone is simple more swift.
The utility model provides a technical scheme of above-mentioned technical problem is:
a real wireless earphone with active noise reduction comprises an earphone shell, an active noise reduction module, a speaker module, an in-ear detection module and a control module, wherein the active noise reduction module, the speaker module, the in-ear detection module and the control module are arranged in the earphone shell,
the earphone shell is internally provided with a volume cavity, the exterior of the earphone shell is provided with an ear inlet end, the ear inlet end is communicated with the volume cavity through a sound outlet pipeline, and the ear inlet end is provided with a sound outlet hole at the sound outlet pipeline; the active noise reduction module is arranged in the sound outlet pipeline;
the in-ear detection module, the loudspeaker module and the control module are all arranged in the volume cavity, wherein the in-ear detection module is used for in-ear detection; the loudspeaker module is used for converting the electric signal into a sound signal; the control module is connected with the active noise reduction module, the in-ear detection module and the loudspeaker module and used for carrying out signal interaction on the active noise reduction module, the in-ear detection module and the loudspeaker module.
Preferably, the active noise reduction module comprises a feedforward microphone, the feedforward microphone is arranged at a sound outlet pipeline of the earphone shell, the earphone shell is provided with a limit groove at a contact position with the feedforward microphone, and the feedforward microphone is arranged in the limit groove.
Preferably, the ear entrance detection module comprises a lens and an optical induction sensor, wherein the lens is installed in the earphone shell at a position close to the sound outlet pipeline, an installation groove is formed in the earphone shell at a position corresponding to the lens, and a light inlet hole for communicating the outside with the volume cavity is formed in the installation groove; the optical induction sensor is arranged on the lens and used for transmitting and receiving optical signals with specific frequency.
Preferably, the speaker module comprises a speaker bracket and a speaker, wherein the speaker bracket is installed in the volume cavity of the earphone shell; the speaker is mounted on the speaker stand.
Preferably, the control module comprises a special-shaped flexible circuit board, the special-shaped flexible circuit board is mounted in the earphone shell, three branches are arranged on the special-shaped flexible circuit board, and a welding spot is arranged on each branch; the optical induction sensor, the feedforward microphone and the loudspeaker are all provided with welding feet, and the optical induction sensor, the feedforward microphone and the loudspeaker are respectively arranged on three branches of the special-shaped flexible circuit board in a welding mode.
Preferably, an annular partition plate is arranged between the in-ear detection module and the active noise reduction module.
Preferably, the earphone shell is further provided with ear wings, and the ear wings are mounted on the earphone shell through detachable structures.
Preferably, the ear inlet end is sleeved with an earplug.
Preferably, the earphone shell includes leading earphone shell and rearmounted earphone shell, wherein, the ear-entering end sets up on the leading earphone shell, feedforward microphone, lens, optical induction sensor, speaker and dysmorphism flexible circuit board all set up leading earphone shell department, the speaker support mounting be in rearmounted earphone shell department.
Preferably, the loudspeaker and the loudspeaker support and the earphone shell are connected through glue.
Compared with the prior art, the utility model following beneficial effect has:
(1) the utility model discloses an initiative among the real wireless earphone of making an uproar falls in initiative falls the module setting of making an uproar in a sound pipeline, its receiving position with the environment of locating compare in prior art be close the people ear duct on the space yardstick more for its noise reduction's effect is better for current bluetooth earphone.
(2) The utility model discloses an initiative of the real wireless earphone of making an uproar falls the module setting of making an uproar falls in the sound pipeline, just so can not occupy the volume in the volume chamber in the earphone shell, makes the mounted position of income ear detection module, control module group and speaker module has more selections to can select each mounted position that is most suitable, thereby improve the utility model discloses a performance of real wireless earphone.
(3) And because the utility model discloses an actively fall the module setting of making an uproar in the real wireless earphone of actively falling makes an uproar in the sound pipeline, consequently can not occupy the volume in the volume chamber in the earphone shell, like this, the utility model discloses an interval between each components and parts in the real wireless earphone can increase to reduce the probability of taking place the interference between each components and parts.
(4) The utility model discloses a real wireless headset's that initiatively falls makes an uproar assembly is simple swift more, and this uniformity that is favorable to improving volume production equipment technology has improved the product production yield.
Drawings
Fig. 1 is a schematic perspective view of the active noise reduction real wireless earphone of the present invention.
Fig. 2 is an exploded view.
Fig. 3 is a schematic structural diagram of the front-end earphone shell.
Fig. 4 is a partial view (cross-sectional view) of an earphone shell.
Fig. 5 is a schematic structural view of the earphone box for containing the wireless earphone of the present invention.
Fig. 6 is a partial schematic view of the earphone box.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Example 1
Referring to fig. 1-4, the active noise reduction real wireless earphone of the present invention includes an earphone shell 1, and an active noise reduction module, a speaker module, an in-ear detection module and a control module disposed in the earphone shell 1, wherein the earphone shell 1 is provided with a volume cavity therein, and is provided with an in-ear end 1-1 outside, the in-ear end 1-1 is communicated with the volume cavity through a sound outlet pipe 1-2, and the in-ear end 1-1 is provided with a sound outlet at the sound outlet pipe 1-2; the active noise reduction module is arranged in the sound outlet pipeline 1-2; the in-ear detection module, the loudspeaker module and the control module are all arranged in the volume cavity, wherein the in-ear detection module is used for in-ear detection; the loudspeaker module is used for converting the electric signal into a sound signal; the control module is connected with the active noise reduction module, the in-ear detection module and the loudspeaker module and used for carrying out signal interaction on the active noise reduction module, the in-ear detection module and the loudspeaker module.
Referring to fig. 1-4, the active noise reduction module includes a feedforward microphone 2, the feedforward microphone 2 is disposed at a sound outlet pipe 1-2 of the earphone shell 1, a position of the earphone shell 1 contacting the feedforward microphone 2 is disposed with a limit groove 1-3, and the feedforward microphone 2 is mounted in the limit groove 1-3. The installation and fixation of the feedforward microphone 2 can be realized by arranging the limiting grooves 1-3.
Referring to fig. 1-4, the in-ear detection module comprises a lens 3 and an optical sensor 4, wherein the lens 3 is installed at a position close to the sound outlet pipe 1-2 in the earphone shell 1, an installation groove 1-4 is formed in the earphone shell 1 at a position corresponding to the lens 3, and a light inlet hole for communicating the outside with the volume cavity is formed in the installation groove 1-4; the optical sensing sensor 4 is mounted on the lens 3 for emitting and receiving an optical signal of a specific frequency. Since the lens 3 has the characteristics of flatness, smoothness, reduced light deflection and only allowing light source passing through a specific frequency range, the light signal emitted by the optical sensing sensor 4 is reflected on the skin surface layer at the cavum concha of the ear after passing through the lens 3, and then is folded back into the optical sensing sensor 4 through the lens 3 again, so as to judge whether the earphone is in the ear.
Referring to fig. 1-4, the speaker module includes a speaker support 5 and a speaker 6, wherein the speaker support 5 is mounted in a volume cavity of the earphone housing 1; the speaker 6 is mounted on the speaker stand 5. Through the structure, the sealed installation of the loudspeaker bracket 5 and the loudspeaker 6 can be utilized, a relatively closed acoustic cavity formed by the volume cavity of the earphone shell 1, the feedforward microphone 2, the loudspeaker 6 and the ear canal of a human ear is created, the acoustic performance requirements of active noise reduction and sound quality expression of the earphone loudspeaker 6 are ensured, and the environment of a sound receiving cavity of the feedforward microphone is improved.
In this embodiment, the speaker 6 and the speaker holder 5, and the speaker holder 5 and the earphone shell 1 are hermetically connected by glue. In addition to this, a snap or screw connection is also possible.
Referring to fig. 1-4, the control module includes a special-shaped flexible circuit board 7, the special-shaped flexible circuit board 7 is installed in the earphone shell 1, three branches are arranged on the special-shaped flexible circuit board 7, a welding spot is arranged on each branch, welding feet are arranged on the optical induction sensor 4, the feedforward microphone 2 and the loudspeaker 6, and the optical induction sensor 4, the feedforward microphone 2 and the loudspeaker 6 are installed on the three branches of the special-shaped flexible circuit board 7 in a welding manner. By using the special-shaped flexible circuit board 7, part of the assembly process is moved forward to the surface mounting stage, the number of parts during production and assembly is reduced, the steps of the production and assembly process are optimized, and the cost and the production period are reduced. In addition, the three branches on the special-shaped flexible circuit board 7 can limit the installation positions of the optical induction sensor 4, the feedforward microphone 2 and the loudspeaker 6, so that the consistency of mass production and assembly processes is improved, and the production yield of products is improved. Furthermore, control module group is except above-mentioned special-shaped flexible circuit board 7, and all the other structures can refer to the bluetooth headset that has now on the market and implement, and the utility model provides a each functional module and the circuit component of special-shaped flexible circuit board 7 all can refer to the bluetooth headset that has now on the market and implement.
Referring to fig. 1-4, the in-ear detection module is provided with an annular partition plate 10 between the in-ear detection module and the active noise reduction module. The annular partition plate 10 is arranged, so that the interference between the ear-entering detection module and the active noise reduction module is avoided.
Referring to fig. 1-4, the earphone shell 1 of the real wireless earphone of the present invention is further provided with an ear wing 8, and the ear wing 8 is installed on the earphone shell 1 through a detachable structure. In addition, the ear inlet end 1-1 is sleeved with an earplug 9.
Referring to fig. 1-4, the earphone housing 1 includes a front earphone housing and a rear earphone housing, wherein the ear insertion end 1-1 is disposed on the front earphone housing, the feedforward microphone 2, the lens 3, the optical sensor 4, the speaker 6 and the special-shaped flexible circuit board 7 are disposed on the front earphone housing, and the speaker support 5 is mounted on the rear earphone housing.
The utility model discloses a real wireless earphone with optical induction sensor 4, loudspeaker 6 and feedforward microphone 2 correspond the position and set up limit structure such as mounting groove 1-4 or spacing groove 1-3, and with these optical induction sensor 4, acoustics such as loudspeaker 6 and feedforward microphone 2, optical components assembles under the restriction of each limit structure and special-shaped flexible circuit board 7, be favorable to improving the packaging efficiency, this also can guarantee feedforward microphone radio reception cavity environment in addition, the whole machine initiative falls the performance of making an uproar and assembles under the prerequisite of the optical induction sensor 4 performance of conch chamber position, reduce the product size, improve and wear the comfort level. The assembly difficulty of each part in the production process is reduced, the consistency of acoustic and optical performances is improved, and the production yield of products is improved; the use of parts is reduced, the integration is modular structure, and the cost is reduced.
Example 2
Referring to fig. 5 and 6, the earphone box 11 for containing the real wireless earphone of the present invention comprises a box body and a charging module arranged in the box body, wherein the box body comprises a box body 11-1 and a flip 11-2 arranged on the box body 11-1, wherein a groove 11-5 for storing the real wireless earphone of the present invention is arranged in the box body 11-1, and two grooves 11-5 are respectively used for storing left and right earphones; the flip cover 11-2 is rotatably connected to the box body 11-1, and the wireless earphone of the utility model can be taken out or put in by opening or closing the flip cover 11-2.
The charging module is arranged in the box body 11-1, and the box body 11-1 is separately provided with an accommodating cavity at a position corresponding to the charging module; a charging terminal 11-4 is arranged in the groove 11-5 of the box body 11-1, and the charging terminal 11-4 is connected with the charging module; the utility model discloses a real wireless earphone's bottom is provided with the interface 12 that charges, will the utility model discloses a real wireless earphone when putting into box body 11-1's recess 11-5 in, should the utility model discloses a real wireless earphone's the interface that charges and the charging terminal 11-4 contact in the earphone box can realize right the utility model discloses a real wireless earphone charges to guarantee the utility model discloses a real wireless earphone can charge at any time when not using.
The charging module in this embodiment is a power module, and may be implemented by referring to a charging module in an existing earphone box on the market; in addition, a charging port 11-3 is further arranged on the box body 11-1, and the charging module can be charged by connecting a charging wire.
The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above, and any other changes, modifications, substitutions, blocks, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. A real wireless earphone with active noise reduction comprises an earphone shell, an active noise reduction module, a speaker module, an in-ear detection module and a control module, wherein the active noise reduction module, the speaker module, the in-ear detection module and the control module are arranged in the earphone shell,
the earphone shell is internally provided with a volume cavity, the exterior of the earphone shell is provided with an ear inlet end, the ear inlet end is communicated with the volume cavity through a sound outlet pipeline, and the ear inlet end is provided with a sound outlet hole at the sound outlet pipeline; the active noise reduction module is arranged in the sound outlet pipeline;
the in-ear detection module, the loudspeaker module and the control module are all arranged in the volume cavity, wherein the in-ear detection module is used for in-ear detection; the loudspeaker module is used for converting the electric signal into a sound signal; the control module is connected with the active noise reduction module, the in-ear detection module and the loudspeaker module and used for carrying out signal interaction on the active noise reduction module, the in-ear detection module and the loudspeaker module.
2. The active noise reduction real wireless earphone according to claim 1, wherein the active noise reduction module comprises a feedforward microphone, the feedforward microphone is disposed at a sound outlet pipe of the earphone shell, the earphone shell is disposed with a limit groove at a contact position with the feedforward microphone, and the feedforward microphone is mounted in the limit groove.
3. The active noise reduction real wireless earphone according to claim 2, wherein the in-ear detection module comprises a lens and an optical sensor, wherein the lens is installed in the earphone shell at a position close to the sound outlet pipe, the earphone shell is provided with an installation groove at a position corresponding to the lens, and the installation groove is provided with a light inlet hole for communicating the outside and the volume cavity; the optical induction sensor is arranged on the lens and used for transmitting and receiving optical signals with specific frequency.
4. The active noise reduction real wireless earphone according to claim 3, wherein the speaker module comprises a speaker holder and a speaker, wherein the speaker holder is mounted in a volume cavity of the earphone housing; the speaker is mounted on the speaker stand.
5. The active noise reduction real wireless earphone according to claim 4, wherein the control module comprises a special-shaped flexible circuit board mounted inside the earphone shell, and three branches are arranged on the special-shaped flexible circuit board, and each branch is provided with a welding spot; the optical induction sensor, the feedforward microphone and the loudspeaker are all provided with welding feet, and the optical induction sensor, the feedforward microphone and the loudspeaker are respectively arranged on three branches of the special-shaped flexible circuit board in a welding mode.
6. The active noise reduction real wireless earphone according to claim 1, wherein the in-ear detection module is provided with an annular separation plate between the in-ear detection module and the active noise reduction module.
7. The active noise reduction real wireless earphone according to claim 1, wherein the earphone shell is further provided with an ear wing, and the ear wing is mounted on the earphone shell through a detachable structure.
8. The active noise reducing true wireless headset of claim 1, wherein an earplug is placed over the in-ear end.
9. The active noise reduction real wireless earphone according to claim 5, wherein the earphone shell comprises a front earphone shell and a rear earphone shell, wherein the ear inlet end is disposed on the front earphone shell, the feedforward microphone, the lens, the optical sensor, the speaker and the special-shaped flexible circuit board are disposed on the front earphone shell, and the speaker bracket is mounted on the rear earphone shell.
10. The active noise reduction real wireless earphone according to claim 5, wherein the speaker and the speaker holder and the earphone shell are connected by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021464500.8U CN212413401U (en) | 2020-07-22 | 2020-07-22 | True wireless earphone with active noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021464500.8U CN212413401U (en) | 2020-07-22 | 2020-07-22 | True wireless earphone with active noise reduction function |
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| CN212413401U true CN212413401U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021464500.8U Active CN212413401U (en) | 2020-07-22 | 2020-07-22 | True wireless earphone with active noise reduction function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225641A (en) * | 2021-04-30 | 2021-08-06 | 深圳市百泰实业股份有限公司 | Intelligent noise reduction module of active self-adaptive ANC earphone |
| TWI770815B (en) * | 2021-02-09 | 2022-07-11 | 富祐鴻科技股份有限公司 | Noise-cancelling ear canal headphone structure |
| US11715452B2 (en) | 2021-10-29 | 2023-08-01 | Newline Co., Ltd. | Active noise reduction earphone |
-
2020
- 2020-07-22 CN CN202021464500.8U patent/CN212413401U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI770815B (en) * | 2021-02-09 | 2022-07-11 | 富祐鴻科技股份有限公司 | Noise-cancelling ear canal headphone structure |
| CN113225641A (en) * | 2021-04-30 | 2021-08-06 | 深圳市百泰实业股份有限公司 | Intelligent noise reduction module of active self-adaptive ANC earphone |
| CN113225641B (en) * | 2021-04-30 | 2022-12-13 | 深圳市百泰实业股份有限公司 | Intelligent noise reduction module of active self-adaptive ANC earphone |
| US11715452B2 (en) | 2021-10-29 | 2023-08-01 | Newline Co., Ltd. | Active noise reduction earphone |
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