CN211930858U - True wireless stereo earphone - Google Patents
True wireless stereo earphone Download PDFInfo
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- CN211930858U CN211930858U CN202021031798.3U CN202021031798U CN211930858U CN 211930858 U CN211930858 U CN 211930858U CN 202021031798 U CN202021031798 U CN 202021031798U CN 211930858 U CN211930858 U CN 211930858U
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Abstract
The utility model relates to the technical field of earphones, a true wireless stereo earphone is disclosed, include: the device comprises a shell, a PCB, a FPC, a loudspeaker, a microphone and a bone conduction sensor; the shell comprises a front shell and a rear shell which are connected to form an accommodating cavity comprising an earplug part cavity and a handle part cavity; the loudspeaker is assembled in the cavity of the earplug part, and the vibrating diaphragm of the loudspeaker faces the front shell, so that a front sound cavity is formed between the front shell and the loudspeaker, a rear sound cavity is formed between the loudspeaker and the rear shell, and the front sound cavity is communicated with a sound outlet hole formed in the front shell; the PCB and the bone conduction sensor are assembled in the back sound cavity, the bone conduction sensor is arranged at a position corresponding to the cavum concha of a wearer, and the microphone is assembled at the bottom end of the cavity of the handle part; the FPC is assembled in the back sound cavity and the handle part cavity and is electrically connected with the PCB, the loudspeaker, the microphone and the bone conduction sensor respectively. The invention can simultaneously have the air conduction sound pickup function and the bone conduction sound pickup function, thereby improving the sound pickup effect.
Description
Technical Field
The utility model relates to an earphone technical field especially relates to a true wireless stereo earphone.
Background
With the progress of society and the improvement of the level of science and technology, more and more people begin to pay attention to the improvement of life quality, more and more people begin to use some audio-visual products, such as smart phones and wireless earphones, and the products greatly facilitate the life of human beings and also provide more fun for the human beings. Especially, the bluetooth headset, the user can liberate both hands completely to communicate with other people and enjoy music without constraint, so the wireless headset is popular with more and more users.
In recent years, a TWS (True Wireless Stereo) bluetooth headset is preferred by most users, and the TWS headset is a device for transmitting Stereo signals based on bluetooth technology, that is, left and right headsets can receive Stereo signals from an electronic playing device such as a mobile phone through bluetooth without any wire connection, so as to realize playback. However, the pickup mode of the existing TWS bluetooth headset is generally an air conduction mode, the pickup mode is single, the pickup effect is not good enough, and the use requirements of users cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a true wireless stereo earphone solves pickup mode single and pickup effect not good enough defect in the current earphone.
To achieve the purpose, the utility model adopts the following technical proposal:
a true wireless stereo headset comprising: the device comprises a shell, a PCB, a FPC, a loudspeaker, a microphone and a bone conduction sensor;
the shell comprises a front shell and a rear shell, the front shell and the rear shell are assembled and connected to form an accommodating cavity, and the accommodating cavity comprises an earplug part cavity and a handle part cavity;
the loudspeaker is assembled in the earplug part cavity, and the vibrating diaphragm of the loudspeaker faces the front shell, so that part of the earplug part cavity between the front shell and the loudspeaker is formed into a front sound cavity, part of the earplug part cavity between the loudspeaker and the rear shell is formed into a rear sound cavity, and the front sound cavity is communicated with a sound outlet hole formed in the front shell;
the PCB and the bone conduction sensor are assembled in the back sound cavity, the bone conduction sensor is arranged at a position corresponding to the cavum concha of a wearer, and the microphone is assembled at the bottom end of the cavity of the handle part;
the FPC is assembled in the back sound cavity and the handle part cavity and is electrically connected with the PCB, the loudspeaker, the microphone and the bone conduction sensor respectively.
Optionally, the FPC includes a first soft board and a second soft board, the first soft board is accommodated in the rear sound cavity, and the second soft board is accommodated in the handle cavity;
the first soft board comprises a first connecting board, and the loudspeaker and the PCB are respectively and fixedly connected to the board surfaces at two opposite sides of the connecting board;
the top end of the first connecting plate is bent and extended to form a second connecting plate which is arranged between the loudspeaker and the front shell, and a proximity sensor is mounted on the second connecting plate;
a third connecting plate is formed by bending and extending the bottom end of the first connecting plate, and the bone conduction sensor is mounted on the third connecting plate;
one end of the second soft board extends to the bottom of the rear sound cavity and is connected with the PCB, the other end of the second soft board extends to the bottom of the handle part cavity and is provided with a fourth connecting board, and the microphone and the electric connector are respectively installed on the two opposite side board surfaces of the fourth connecting board.
Optionally, a phase guide tube is further assembled in the rear sound cavity; and an opening at one end of the phase guide pipe is communicated with the rear sound cavity, and an opening at the other end of the phase guide pipe is communicated with a sound release hole formed in the rear shell.
Optionally, the phase-guide tube is fixed to the PCB, and an opening at one end of the phase-guide tube communicates with the rear sound cavity through a through hole formed in the PCB.
Optionally, an acceleration sensor is further fixedly connected to the PCB.
Optionally, a magnetic attraction piece is further fixed in the back sound cavity or the handle part cavity.
Optionally, the portable terminal further comprises a battery, wherein the battery is assembled in the cavity of the handle part and is electrically connected with the FPC.
Compared with the prior art, the embodiment of the utility model provides a following beneficial effect has:
the real wireless stereo headset of the embodiment simultaneously comprises the microphone and the bone conduction sensor, the microphone can be used for realizing the pickup function of the traditional air conduction mode, and the bone conduction sensor can be used for realizing the pickup function of the bone conduction mode. Meanwhile, since the microphone is mounted at the bottom end of the handle portion, the position is closest to the mouth of the wearer of the earphone; the bone conduction sensor is assembled in the position that corresponds with the wearer's concha cavity in the back sound cavity, consequently no matter be air conduction sound pick-up mode or bone conduction sound pick-up mode, the homoenergetic can obtain best sound pick-up effect.
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 an overall perspective view of a wireless stereo headphone according to an embodiment of the present invention.
Fig. 2 is an exploded view of a wireless stereo headphone according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a wireless stereo headphone according to an embodiment of the present invention.
Illustration of the drawings:
the microphone comprises a shell 1, a PCB 2, an FPC 3, a loudspeaker 4, a microphone 5, a bone conduction sensor 6, a phase conduction tube 7, a battery 8, an electric connector 9, a proximity sensor 10, a front shell 11, a rear shell 12, a sound outlet hole 13, a sound outlet hole 14, a first soft board 31, a second soft board 32, a first connecting board 311, a second connecting board 312 and a third connecting board 313.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but 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.
The embodiment of the utility model provides a true wireless stereo earphone, its pickup mode is including two kinds of types: bone conduction and air conduction.
The bone conduction mode is a sound conduction mode in which sound is transmitted to an auditory nerve of a person through a skull and a jaw, and then transmitted to an auditory center in the brain through the auditory nerve, so that the person can hear the sound.
The air conduction mode is another sound conduction mode, in which the sound emitted by the sound source is collected through the pinna of the human body, and is conducted through the air in the external auditory canal of the human body to cause the vibration of the eardrum, then the vibration of the eardrum drives the ossicles to vibrate, and the vibration is continuously transmitted to the cochlea, and finally is transmitted to the auditory center of the brain through the auditory nerve, so that the human body hears the sound.
Referring to fig. 1 to fig. 3, the wireless stereo headset according to the present embodiment includes: the device comprises a shell 1, a PCB 2, an FPC 3, a loudspeaker 4, a microphone 5, a bone conduction sensor 6, a phase conduction tube 7 and a battery 8.
The housing 1 includes a front shell 11 and a rear shell 12, and the front shell 11 and the rear shell 12 are assembled to form an accommodating cavity for accommodating other components. According to the normal wearing effect of the earphone, the casing 1 can be divided into: a fully or semi-in-the-ear earplug portion, and a handle portion located outside the ear for hand holding. Based on this, the accommodation cavity can further divide the earplug part cavity and the handle part cavity.
The loudspeaker 4 is assembled in the earplug part cavity, and the diaphragm surface of the loudspeaker 4 faces the front shell 11, so that part of the earplug part cavity between the front shell 11 and the loudspeaker 4 is formed into a front sound cavity, part of the earplug part cavity between the loudspeaker 4 and the rear shell 12 is formed into a rear sound cavity, and the front sound cavity is communicated with a sound outlet 13 formed in the front shell 11.
The FPC 3 is integrally arranged in the rear sound cavity and the handle part cavity and is electrically connected with the PCB 2, the loudspeaker 4, the microphone 5, the bone conduction sensor 6 and the battery 8 respectively.
To sum up, the real wireless stereo headset of this embodiment includes microphone 5 and bone conduction sensor 6 simultaneously, utilizes microphone 5 to realize the pickup function of traditional air conduction mode, utilizes bone conduction sensor 6 to realize the pickup function of bone conduction mode, still can utilize microphone 5 and bone conduction sensor 6 to realize the pickup function according to certain mode cooperation.
Meanwhile, since the microphone 5 is mounted at the bottom end of the handle portion, this position is closest to the mouth of the wearer of the headset; the bone conduction sensor 6 is assembled in the position corresponding to the cavum conchae of the wearer in the back sound cavity, so that the best sound pickup effect can be obtained regardless of the air conduction sound pickup mode or the bone conduction sound pickup mode.
Referring to fig. 2 and 3, the FPC 3 of the present embodiment specifically includes a first flexible board 31 and a second flexible board 32, the first flexible board 31 is accommodated in the rear sound cavity, and the second flexible board 32 is accommodated in the handle cavity.
The first flexible board 31 includes a first connection board 311, and the speaker 4 and the PCB 2 are respectively fixedly connected to opposite side panels of the connection board.
The top end of the first connection plate 311 is bent and extended to form a second connection plate 312 arranged between the speaker 4 and the front case 11, and the proximity sensor 10 is mounted on the second connection plate 312. Through the proximity sensor 10, in-ear detection can be realized, and according to an in-ear detection result, the PCB 2 can perform a corresponding earphone control function, such as turning on an audio playing function.
The bottom end of the first connecting plate 311 is bent and extended to form a third connecting plate 313, and the bone conduction sensor 6 is mounted on the third connecting plate 313.
One end of the second soft board 32 extends to the bottom of the rear sound cavity and is connected with the PCB 2, the other end extends to the bottom of the cavity of the handle part and is provided with a fourth connecting board, and the surfaces of two opposite sides of the fourth connecting board are respectively provided with the microphone 5 and the electric connector 9; the connection end of the electrical connector 9 is exposed to the outside for electrically connecting with a terminal in the earphone charging box.
The FPC 3 with the structure can adapt to the special shape of the earphone, is assembled and connected with other components of the earphone, can fully utilize the compact assembly space in the earphone, and saves the assembly space to the maximum extent.
In order to avoid the condition that sound leakage exists between the earphone and the auditory canal when the earphone is worn, and the low-frequency effect of the earphone is insufficient, the earphone of the embodiment is also provided with a phase guide tube 7 in the back sound cavity. The phase-guiding tube 7 is a bent tubular structure, one end opening of which is communicated with the back sound cavity, and the other end opening of which is communicated with a sound-releasing hole 14 arranged on the back shell 12, so as to form the acoustic impedance of the bass tube and improve the low-frequency effect of the earphone. For example, the phase-guiding tube 7 may be fixed on the PCB 2, and an opening of one end of the phase-guiding tube 7 communicates with the rear sound cavity through a through hole formed on the PCB 2.
In addition, still fixedly connected with acceleration sensor on the PCB 2, this acceleration sensor can be used to replace traditional physical button, realizes virtual button function. Based on this, in the process of using the earphone, the wearer only needs to click the shell 1 in the corresponding area to realize the relevant key control operation. Compared with a pressing mode, the pressing device is simple and convenient to operate.
When the earphone is placed in the charging box for charging, there may be a situation that the earphone cannot be stably electrically connected with the charging box due to vibration and the like. In order to ensure that a good charging effect can be obtained in various environments, a magnetic attraction piece (such as a magnet) is further fixed in the back sound cavity or the handle part cavity in the embodiment; when the earphone is placed in the charging box for charging, the earphone and the charging box can be connected with each other through the magnetic attraction piece, so that stable electric connection is realized, and a good charging effect is obtained.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; 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 (7)
1. A true wireless stereo headset, comprising: the device comprises a shell, a PCB, a FPC, a loudspeaker, a microphone and a bone conduction sensor;
the shell comprises a front shell and a rear shell, the front shell and the rear shell are assembled and connected to form an accommodating cavity, and the accommodating cavity comprises an earplug part cavity and a handle part cavity;
the loudspeaker is assembled in the earplug part cavity, and the vibrating diaphragm of the loudspeaker faces the front shell, so that part of the earplug part cavity between the front shell and the loudspeaker is formed into a front sound cavity, part of the earplug part cavity between the loudspeaker and the rear shell is formed into a rear sound cavity, and the front sound cavity is communicated with a sound outlet hole formed in the front shell;
the PCB and the bone conduction sensor are assembled in the back sound cavity, the bone conduction sensor is arranged at a position corresponding to the cavum concha of a wearer, and the microphone is assembled at the bottom end of the cavity of the handle part;
the FPC is assembled in the back sound cavity and the handle part cavity and is electrically connected with the PCB, the loudspeaker, the microphone and the bone conduction sensor respectively.
2. The true wireless stereo headphone of claim 1, wherein the FPC comprises a first flexible board and a second flexible board, the first flexible board being received in the rear sound cavity, the second flexible board being received in the handle portion cavity;
the first soft board comprises a first connecting board, and the loudspeaker and the PCB are respectively and fixedly connected to the board surfaces at two opposite sides of the connecting board;
the top end of the first connecting plate is bent and extended to form a second connecting plate which is arranged between the loudspeaker and the front shell, and a proximity sensor is mounted on the second connecting plate;
a third connecting plate is formed by bending and extending the bottom end of the first connecting plate, and the bone conduction sensor is mounted on the third connecting plate;
one end of the second soft board extends to the bottom of the rear sound cavity and is connected with the PCB, the other end of the second soft board extends to the bottom of the handle part cavity and is provided with a fourth connecting board, and the microphone and the electric connector are respectively installed on the two opposite side board surfaces of the fourth connecting board.
3. The true wireless stereo headphone of claim 1, wherein the back sound cavity is further fitted with a phase guide tube; and an opening at one end of the phase guide pipe is communicated with the rear sound cavity, and an opening at the other end of the phase guide pipe is communicated with a sound release hole formed in the rear shell.
4. The true wireless stereo headphone according to claim 3, wherein the phase guide tube is fixed on the PCB, and an opening at one end of the phase guide tube communicates with the rear sound cavity through a through hole formed on the PCB.
5. The true wireless stereo headset of claim 1, wherein an acceleration sensor is also fixedly attached to the PCB.
6. The true wireless stereo headset of claim 1, wherein a magnetic attachment is further secured within the back sound cavity or the handle portion cavity.
7. The true wireless stereo headphone of claim 1, further comprising a battery that fits within the handle portion cavity and is electrically connected to the FPC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021031798.3U CN211930858U (en) | 2020-06-08 | 2020-06-08 | True wireless stereo earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021031798.3U CN211930858U (en) | 2020-06-08 | 2020-06-08 | True wireless stereo earphone |
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| Publication Number | Publication Date |
|---|---|
| CN211930858U true CN211930858U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021031798.3U Active CN211930858U (en) | 2020-06-08 | 2020-06-08 | True wireless stereo earphone |
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| CN (1) | CN211930858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117412212A (en) * | 2023-08-28 | 2024-01-16 | 东莞市惟动智能科技有限公司 | Mixed conduction earphone device at inner side of tragus and design method thereof |
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2020
- 2020-06-08 CN CN202021031798.3U patent/CN211930858U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117412212A (en) * | 2023-08-28 | 2024-01-16 | 东莞市惟动智能科技有限公司 | Mixed conduction earphone device at inner side of tragus and design method thereof |
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