CN211982144U

CN211982144U - Neck-wearing type earphone

Info

Publication number: CN211982144U
Application number: CN202020404461.6U
Authority: CN
Inventors: 玛泽亚·费诺兹; 刘涛; 乔峤; 莫志雅; 法比奥·圣阿加塔; 刘志雄
Original assignee: Shenzhen 3Nod Digital Technology Co Ltd
Current assignee: Shenzhen 3Nod Digital Technology Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-11-20
Anticipated expiration: 2030-03-25

Abstract

The application provides a neck wear earphone wears the subassembly including earphone subassembly and neck, is equipped with out the sound unit in the earphone subassembly, and the earphone subassembly wears the subassembly cable with the neck and is connected, and the neck area subassembly includes: the control unit, the neck beam and the power supply unit; the control unit and the power supply unit are respectively connected with one of the two tail ends of the neck beam, and the power supply unit is connected with the control unit and supplies power to the control unit; the control unit comprises a PCBA board, an MCU, a Bluetooth chip, a WIFI chip and at least two DAC chips; the MCU is arranged on the PCBA board, and the Bluetooth chip and the WIFI chip are integrated in the MCU; the output end of the DAC chip is connected with the input end of the DAC chip, and the output end of the DAC chip is connected with the sound emitting unit; MCU discerns the wireless signal that bluetooth chip, WIFI chip received, obtains audio signal, and the audio signal who will discern transmits DAC chip for decoding again. According to the audio file playing method and device, audio data are transmitted through the WIFI, the DAC chips are decoded at the same time, the high-resolution lossless audio file can be played, and the use experience of a user is enhanced.

Description

Neck-wearing type earphone

Technical Field

The application relates to the technical field of wireless earphones, in particular to a neck-wearing earphone.

Background

Compared with wired earphones, the wired earphones have the advantages that the functions are single, the storage is inconvenient, and the winding and knotting are easy. The wireless earphone is portable and convenient to wear. However, the wireless headset in the market at present basically adopts a bluetooth transmission form, and is applied to all wireless frequency bands of bluetooth transmission, so that transmitted Audio data cannot realize High-Res authentication (High Resolution Audio, a High-quality Audio product design standard proposed and defined by sony, JAS (japan Audio association) and CEA (consumer electronics association)), and cannot play High-Resolution (24/32bit to 192/384khz) lossless Audio files in the wireless headset. Therefore, a new technology capable of playing high-resolution lossless audio files in wireless headphones is needed.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a neck headset, and the problem that high-resolution lossless audio files cannot be played in a wireless headset is solved.

In order to solve the technical problem, the embodiment of the application provides a neck formula of wearing earphone, wear the subassembly including earphone subassembly and neck, be equipped with out the sound unit in the earphone subassembly, the earphone subassembly with the subassembly cable connection is worn to the neck, has adopted following technical scheme:

the neck area subassembly includes:

the control unit, the neck beam and the power supply unit;

the control unit is connected with one of the two tail ends of the neck beam, and the power supply unit is connected with the other of the two tail ends of the neck beam; the power supply unit is connected with the control unit and supplies power to the control unit;

the control unit comprises a PCBA board, an MCU, a Bluetooth chip, a WIFI chip and at least two DAC chips; the MCU is arranged on the PCBA board, and the Bluetooth chip and the WIFI chip are integrated in the MCU; the output end of the MCU is connected with the input end of the DAC chip, and the output end of the DAC chip is connected with the sound emitting unit;

the MCU identifies the wireless signals received by the Bluetooth chip and the WIFI chip to obtain audio signals, and then transmits the identified audio signals to the DAC chip for decoding.

Further, the control unit further includes: the key comprises a shell base, a key shell and a key inner shell;

the PCBA is arranged in the shell base; the key inner shell covers the outer shell base, and the PCBA board covers a space formed by the key inner shell and the outer shell base; the key inner shell is provided with at least two control keys; the shape of the key outer shell is matched with the shape of the key inner shell, the key inner shell covers the key outer shell, and the same keys are correspondingly arranged.

Further, still be equipped with in the shell base with memory card draw-in groove and the USB interface that PCBA board is connected, the button inner shell with the button shell all is equipped with corresponding memory card draw-in groove trompil and USB interface trompil.

Further, the memory card slot is a MicroSD slot, and the USB interface is a USB-C interface.

Furthermore, a microphone and an AI chip for receiving voice information of a user are also arranged on the PCBA; the AI chip is integrated in the MCU.

Furthermore, a connecting wire is arranged in the neck beam, the power supply unit is a rechargeable battery, and the control unit is connected with the rechargeable battery through the connecting wire.

Further, still be equipped with the power management chip on the PCBA board, the input of power management chip is connected rechargeable battery, the output of power management chip is connected MCU.

Further, the number of the DAC chips is two, and the model of the DAC chip is ES 9218P.

Further, the earphone assembly includes: a first earphone and a second earphone; the first earphone and the second earphone are both provided with a first connecting part; the two ends of the neck beam are provided with second connecting parts; the first connecting portion and the second connecting portion are detachably connected or fixedly connected.

Furthermore, the first earphone and the second earphone are respectively provided with a first magnetic suction fixing part; the control unit and the power supply unit are respectively provided with a second magnetic suction fixing part; the first magnetic attraction fixing part can be magnetically connected with the second magnetic attraction fixing part.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:

according to the scheme, the audio data are transmitted through the WIFI, so that the high-resolution lossless audio file can be played in the wireless earphone, and the use experience of a user is enhanced; simultaneously, two high-resolution DAC chips are used for decoding and playing, and the playing delay is below 1 ms; the microphone and the AI chip are arranged, so that noise reduction can be realized, voice control can be realized, and more comfortable listening experience is provided for a user.

Drawings

In order to more clearly illustrate the solution of the present application, the drawings needed for describing the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic structural view of an embodiment of a neck-worn headset according to the present application;

fig. 2 is a schematic circuit diagram of an embodiment of a neck headset according to the present application.

Reference numerals: control unit 1, outer shell base 11, button shell 12, button inner shell 13, PCBA board 14, memory card draw-in groove 15, USB interface 16, inner shell pilot lamp trompil 17, shell pilot lamp trompil 18, neck roof beam 2, power supply unit 3, MCU4, bluetooth chip 5, WIFI chip 6, DAC chip 7, power management chip 8, microphone 9.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the embodiment of the present application provides a neck formula earphone, wear the subassembly including earphone subassembly and neck, be equipped with the sound production unit in the earphone subassembly, the earphone subassembly with the subassembly cable connection is worn to the neck, has adopted following technical scheme:

the neck area subassembly includes:

a control unit 1, a neck beam 2 and a power supply unit 3;

the control unit 1 is connected to one of both ends of the neck beam 2, and the power supply unit 3 is connected to the other of both ends of the neck beam 2; the power supply unit 3 is connected with the control unit 1 and supplies power to the control unit 1;

the control unit 1 comprises a PCBA board 14, an MCU4 (single-chip microcomputer), a Bluetooth chip 5, a WIFI chip 6 and at least two DAC chips 7 (digital-to-analog conversion chips); the MCU4 is arranged on the PCBA board 14, and the Bluetooth chip 5 and the WIFI chip 6 are integrated in the MCU 4; the output end of the MCU4 is connected with the input end of the DAC chip 7, and the output end of the DAC chip 7 is connected with the sound emitting unit;

the MCU4 identifies the wireless signals received by the Bluetooth chip 5 and the WIFI chip 6 to obtain audio signals, and then transmits the identified audio signals to the DAC chip 7 for decoding.

In this embodiment, can't reach the effect of broadcast high resolution lossless audio file through bluetooth transmission audio data among the prior art, this application neck earphone is through setting up bluetooth chip 5, WIFI chip 6, and a plurality of DAC chip 7, can establish bluetooth connection and WIFI connection with mobile terminal, and accessible WIFI receives audio data, because WIFI transmission data's ability is stronger than the bluetooth, can reach the effect of broadcast high resolution lossless audio file in the neck earphone, and simultaneously, this application embeds the decoder and is a plurality of DAC, a plurality of DAC decoding efficiency is higher, can be with the no delayed wireless user that provides of lossless audio. For example, the mobile terminal and the neck-wearing earphone establish a bluetooth connection and a WIFI connection, a specific APP of the mobile terminal is authorized through UWP (Universal Windows Platform, Windows Universal application Platform), the APP can transmit audio data of a lossless audio file to the neck-wearing earphone through the WIFI, and the neck-wearing earphone decodes the audio data and plays the audio data again to achieve the effect of playing a high-resolution lossless audio file in the neck-wearing earphone.

In one embodiment, the control unit 1 further comprises: a shell base 11, a key shell 12 and a key inner shell 13;

the PCBA board 14 is arranged in the shell base 11; the key inner shell 13 covers the outer shell base 11, and the PCBA board 14 covers a space enclosed by the key inner shell 13 and the outer shell base 11; the key inner shell 13 is provided with at least two control keys, such as a volume control key, a state control key and the like; the shape of the key outer shell 12 is matched with that of the key inner shell 13, the key inner shell 13 is covered, and the same keys are correspondingly arranged.

In this embodiment, corresponding control keys may be provided on the PCBA board 14, and the same control keys are also provided on the key inner casing 13, so that when the key inner casing 13 is installed, only the control keys on the key inner casing 13 and the control keys provided on the PCBA board 14 are overlapped, and then the key outer casing 12 is sleeved, so that the keys on the key outer casing 12 can be pressed to correspond to the keys on the PCBA board 14. In another embodiment, a connection interface of the control key may be disposed on the PCBA board 14, a corresponding control key may be disposed on the key inner casing 13, and the control key is connected to a connector corresponding to the interface, and is connected to the connector through the interface, so as to achieve the purpose of inputting the key signal of the key inner casing 13 into the control unit 1. Optionally, the control key in this embodiment may set different operations (single click, double click, triple click, long press of different keys, etc.) to control fast forward, fast backward, previous tune, next tune, switch operating states (e.g., radio mode, bluetooth mode, memory card mode), and the like, in addition to controlling the volume and the playing state. In addition, a status indicator lamp can be arranged on the PCBA board 14, an inner shell indicator lamp hole 17 is arranged on the key inner shell 13, and a corresponding outer shell indicator lamp hole 18 is arranged on the key outer shell 12 to prompt the working status of the neck-wearing earphone of the user.

In one embodiment, the housing base 11 further has a memory card slot 15 and a USB interface 16 connected to the PCBA board 14, and the key inner housing 13 and the key outer housing 12 have corresponding openings of the memory card slot 15 and the USB interface 16.

In one embodiment, the memory card slot 15 is a MicroSD slot, and the USB interface 16 is a USB-C interface.

In this embodiment, the expansion memory card slot is provided, and is preferably a MicroSD card slot, and the MicroSD card has the advantages of small size, large storage data capacity and high-speed transmission. Preferably, the data and charging USB interface 16 of the neck-worn earphone in the present application is a USB-C interface, which has the following advantages, first, it supports front and back blind plugging; secondly, the highest charging current supports 5A, the charging power is high, and the charging speed is high; thirdly, the data transmission speed is ultra-strong and reaches 10 Gbit/s at most, and the upgrading and optimizing speed of the kernel version of the neck-wearing earphone is improved; and fourthly, the interface is light, thin and small (8.3-8.4 x (2.5-2.6 mm)), and the space utilization rate of the product is improved.

In one embodiment, the PCBA board 14 is further provided with a microphone 9 for receiving voice information of a user and an AI chip (not shown); the AI chip is integrated in the MCU 4.

In the embodiment, a microphone 9 (MIC in fig. 2) is provided, and in the embodiment, the microphone array is a dual microphone array, so that the neck headset has a sound input function, and when the neck headset is connected to the mobile terminal, a call can be made or a voice and video call can be made. On the other hand, the AI chip is arranged in cooperation with the microphone 9, so that the environmental noise can be input through the microphone 9, and then the noise can be removed through the AI chip. Furthermore, the user can also input voice through the microphone 9, and then perform voice control on the neck headset through the AI chip voice recognition.

In one embodiment, a connecting line is arranged in the neck beam 2, the power supply unit 3 is a rechargeable battery, and the control unit 1 and the rechargeable battery are connected through the connecting line.

In one embodiment, a power management chip 8 (PMIC in fig. 2) is further disposed on the PCBA board 14, an input end of the power management chip 8 is connected to the rechargeable battery, and an output end of the power management chip 8 is connected to the MCU 4.

In this embodiment, the power management chip 8 is an integrated circuit with a model SC2720, and the SC2720 includes multiple power rails and power management functions in a single chip. Due to the integration of multiple functions into a single chip, the chip size is small, which can provide higher space utilization and system power efficiency. The functions integrated within the power management chip 8 include voltage converters and regulators, battery chargers, battery gauges, LED drivers, real time clocks, power sequencers, and power control, among others.

In one embodiment, the number of the DAC chips 7 is 2, and the model number of the DAC chip 7 is ES 9218P.

In the present embodiment, 2 DAC chips 7 are provided, and the playback delay can be reduced to 1ms or less. The preferred DAC chip 7 is ES9218P, ES9218P has extremely high integration level, small space occupation, high fidelity output, can provide 2.0Vrms output, can support up to 32bit 384kHz PCM (Pulse Code Modulation) and DSD (direct Stream digital)256, can provide up to 130dB SNR (Signal NOISE ratio) and-114 dB THD + N (total harmonic distortion plus NOISE), ensure the sound fever level to the tone quality earphone. It also supports the most popular high resolution and lossless audio formats in the industry, including DSD, DoP, FLAC, ALAC, AIFF and WAV. A compressed legacy format is also supported to ensure that the user gets the best listening experience.

In one embodiment, the earphone assembly comprises: a first earphone and a second earphone; the first earphone and the second earphone are both provided with a first connecting part; the two ends of the neck beam 2 are provided with second connecting parts; the first connecting portion and the second connecting portion are detachably connected or fixedly connected.

In one embodiment, the first earphone and the second earphone are provided with a first magnetic attraction fixing part; the control unit 1 and the power supply unit 3 are both provided with a second magnetic suction fixing part; the first magnetic attraction fixing part can be magnetically connected with the second magnetic attraction fixing part.

In this embodiment, above-mentioned magnetism is inhaled fixed part and is can be magnet, through set up magnet in earphone one end, also sets up magnet on the subassembly is worn to the neck simultaneously, can be when not using, directly fix the earphone on the subassembly is worn to the neck, during the use, directly take off can, simultaneously, magnetism is inhaled the formula and is fixed can not cause wearing and tearing to it is more convenient to make the earphone wholly accomodate, portable more and wear.

In one embodiment, the shell keys are provided with key marking patterns, for example, the control unit is provided with three keys, namely, a volume increasing key, a volume decreasing key and a state key, when the volume increasing key, the volume decreasing key and the state key are respectively marked by plus signs, the volume decreasing key is marked by minus signs, the state key is marked by circles, the marking patterns are provided with certain textures, a user can sense the touch, and the keys cannot be seen through eyes of the user due to the wearing mode of the neck-wearing earphone, so that the key marking patterns can enable the user to accurately sense the positions of the specific keys, and the neck-wearing earphone is accurately controlled.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. The utility model provides a neck headphone, wears the subassembly including earphone subassembly and neck, be equipped with out the sound unit in the earphone subassembly, the earphone subassembly with the subassembly cable connection is worn to the neck, its characterized in that, the subassembly is worn to the neck includes:

the control unit, the neck beam and the power supply unit;

2. The neck worn headset of claim 1, wherein the control unit further comprises: the key comprises a shell base, a key shell and a key inner shell;

3. The neck-worn earphone according to claim 2, wherein a memory card slot and a USB interface are further provided in the housing base, and the PCBA board is connected to the memory card slot and the USB interface, and the key inner housing and the key outer housing are provided with corresponding memory card slot openings and USB interface openings.

4. The neck-worn earphone according to claim 3, wherein the memory card slot is a MicroSD slot, and the USB interface is a USB-C interface.

5. The neck-worn earphone according to claim 1, wherein a microphone and an AI chip for receiving voice information of a user are further provided on the PCBA board; the AI chip is integrated in the MCU.

6. The neck headset of claim 1, wherein a connecting wire is disposed in the neck beam, the power supply unit is a rechargeable battery, and the control unit is connected to the rechargeable battery through the connecting wire.

7. The neck headset of claim 6, wherein the PCBA board further comprises a power management chip, an input terminal of the power management chip is connected to the rechargeable battery, and an output terminal of the power management chip is connected to the MCU.

8. The neck headset of claim 1, wherein the number of DAC chips is two, and the DAC chip model is ES 9218P.

9. The neck worn headset of claim 1, wherein the headset assembly comprises: a first earphone and a second earphone; the first earphone and the second earphone are both provided with a first connecting part; the two ends of the neck beam are provided with second connecting parts; the first connecting portion and the second connecting portion are detachably connected or fixedly connected.

10. The neck worn earphone of claim 9, wherein the first and second earphones each have a first magnetically attached portion; the control unit and the power supply unit are respectively provided with a second magnetic suction fixing part; the first magnetic attraction fixing part can be magnetically connected with the second magnetic attraction fixing part.