CN210629805U

CN210629805U - Fixed-frequency receiving hearing oral-language learning earphone

Info

Publication number: CN210629805U
Application number: CN201921924212.3U
Authority: CN
Inventors: 黄秀鸣
Original assignee: Wuhan Qiaoyishi Electronics Co ltd
Current assignee: Wuhan Qiaoyishi Electronics Co ltd
Priority date: 2019-07-03
Filing date: 2019-11-09
Publication date: 2020-05-26
Anticipated expiration: 2029-11-09

Abstract

The utility model provides a constant frequency is received hearing oral study earphone, includes first auditory device (13), second auditory device (2), adapter (1) and arc clamp (5), the earphone still includes display screen (7), frequency adjustment key (8), frequency modulation switch (9), volume adjust key (10), microphone switch (12), integrated speaker in first auditory device (13) and/or second auditory device (2) the speaker outside is provided with battery compartment (3), is provided with pull rod antenna (6) on first auditory device (13) or second auditory device (2), adapter (1) and earphone interconnect, at least one of first auditory device (13) and second auditory device (2) still includes printed circuit board, printed circuit board includes main control unit, frequency modulation receiving function unit, An electronic changeover switch unit and an amplification function unit.

Description

Fixed-frequency receiving hearing oral-language learning earphone

Technical Field

The utility model relates to a middle and primary school's language auxiliary teaching equipment particularly, relates to a FM that has selectable function simultaneously decides frequently and receives, receiver public address postback and external playback devices's wear-type headset.

Background

At present, all middle and primary schools in China generally use wired broadcasting or teacher portable recorder equipment or equipment such as computers for playing in learning foreign language listening. The volume is very big when playing, almost all schools can hear, therefore, schools have little time for playing general audition in order not to influence the teaching of other subjects, and each student has only about 1 hour of audition training time on average in one week. And most of the played audios are only used for hearing tests, and spoken language cannot be trained in class time without usual training.

The existing earphones on the market are connected with audio playing equipment such as a mobile phone, a computer and MP3 through connecting wires for listening, or are provided with earphones with a Bluetooth receiving function and can be connected with a mobile phone for communication, or are provided with a computer headset for connecting computer voice, or are provided with a headset with an FM radio function, the earphones are mainly used for English four-six-level listening tests in universities, and the frequency modulation range of the earphones is between 50 and 108 megahertz and can also be used for listening to public broadcasting. For example, chinese patent CN205681586U discloses an earphone device for english listening comprehension test, which discloses an earphone device with left and right housings connected by an arc-shaped connecting bridge, wherein a radio receiver of the earphone can only receive an electrical signal with fixed frequency, and the earphone and a structure with a reception function are combined together to be mainly used for receiving listening comprehension test, thereby avoiding the interference of external noise, but it cannot solve the problem of practicing spoken language and problem, and cannot satisfy the practice of reading following foreign language spoken language of students. The above main functions are required to be connected to an audio player or to receive FM programs, and are mostly used for entertainment, but at present, students in middle and primary schools in the whole country are prohibited to carry electronic devices such as mobile phones or MP3 which can listen to songs or play music. Therefore, students in the residence have no chance to hear the standard original sound except for the teacher who plays the original sound of English listening in class.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects existing in the prior art, the utility model aims to provide a fixed-frequency receiving hearing oral learning earphone which can simultaneously realize the frequency of a receiving radio station or a transmitter and has the function of sound amplification and feedback.

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

a fixed-frequency receiving hearing oral learning earphone comprises a first hearing device 13, a second hearing device 2, a sound pick-up 1 and an arc-shaped hoop 5 connecting the first hearing device 13 and the second hearing device 2, the earphone further comprises a display screen 7 integrated on the first hearing device 13 or the second hearing device 2, an operation key is further arranged below the display screen 7, a loudspeaker integrated in the first hearing device 13 and/or the second hearing device 2 is/are arranged outside the loudspeaker, a battery bin 3 is arranged outside the loudspeaker, a pull rod antenna 6 is arranged on the first hearing device 13 or the second hearing device 2, the sound pick-up 1 and the earphone are mutually coupled, at least one of the first hearing device 13 and the second hearing device 2 further comprises a printed circuit board, the printed circuit board comprises a main control unit, a frequency modulation receiving function unit, an electronic change-over switch unit and an amplification function unit, and the frequency modulation receiving function unit, the electronic change-over switch unit and the amplification function unit are electrically connected with the main control unit.

Preferably, the operation buttons comprise a frequency adjusting key 8, a frequency adjusting switch 9, a volume adjusting key 10 and a microphone switch 12.

Further, arc clamp 5 still includes setting up adjusting device 4 at arc clamp 5 body both sides tip, first auditory device 13 and second auditory device 2 are connected respectively to adjusting device 4's end.

Furthermore, the fm receiving function unit uses fixed frequency reception, and the number of the received fixed frequencies is about 20, which may be greater than or less than this number.

Further, a headphone audio jack 11 is provided on the first hearing device 13 and/or the second hearing device 2.

Preferably, the main control unit controls the frequency modulation receiving function unit and the amplifying function unit to work simultaneously or independently through the electronic change-over switch unit.

The amplification functional unit realizes the functions of sound amplification of the sound pick-up 1 and sound transmission back to the earphone loudspeaker.

As a further technical solution of the present invention:

the utility model discloses in the listening ability spoken language learning earphone is received to fixed frequency, the earphone main part is a pair of head-mounted headset, the earphone main part is including the casing, frequency modulation broadcast receiving demodulation integrated circuit is equipped with in the casing, master control integrated circuit, electronic transfer switch integrated circuit, audio amplification integrated circuit, frequency modulation broadcast receiving demodulation integrated circuit can only select the fixed channel of earphone internal program, the realization of this kind of function can be customized according to user's needs when producing, quantity is 20, also can be greater than or be less than this quantity, make its campus radio station frequency that only can be used to receive corresponding frequency, the purpose of doing so has been avoided middle and primary school student to be used for listening to the amusement broadcast.

The earphone can also be provided with the package of sponge earmuff, has realized effectual reduction surrounding environment noise. The audio jack 11 on the earphone can also be adapted to other playing media, such as devices such as mobile phones, computers, MP3, and the like, for autonomous learning.

The utility model has the advantages that: the utility model discloses other earphones relatively, more be suitable for middle and primary school's classroom auxiliary teaching, language class study courseware is listened to in unison, and follow reading study, conveniently realize the use in middle and primary school's foreign language auxiliary teaching, except satisfying general headset basic speech use, still possess the frequency modulation broadcast and receive, the sound that the receiver was included is carried out the function such as public address passback to local loudspeaker, do not have the interference of foreign sound when receiving the frequency of the miniature frequency modulation broadcast transmitter that campus radio station or mr used, can swiftly lock the channel through the button, through setting up adapter 1, the public address passback function of earphone has been increased, satisfy student's spoken language and follow reading exercise, the frequency to radio station or transmitter has been injectd, make the student can not listen to at will with foreign language study irrelevant entertainment.

Based on an operation interface formed by a master control integrated circuit, an LCD and a keyboard, the working state of each functional module is controlled, so that multi-mode work among functions of frequency modulation broadcast receiving, receiver sound amplification and the like in the earphone is realized, the requirements under different application scenes are met by different function combination work, the sound of a user is transmitted back to a loudspeaker of the earphone receiver 1 after being amplified by an amplifying circuit, students can realize small-sound reading and large-sound listening, the whole students use the earphone receiver together in early reading, the whole students do not influence each other, and the special attention is effectively improved.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the hearing oral learning earphone of the present invention;

FIG. 3 is a schematic diagram of a Main Control Unit (MCU) circuit of the present invention;

FIG. 4 is a schematic circuit diagram of the amplification functional unit of the present invention;

fig. 5 is a schematic circuit diagram of the fm receiving function unit of the present invention;

Detailed Description

The principles and advantages of the present invention will be further explained with reference to the drawings and examples.

Example 1

As shown in fig. 1-5, a fixed-frequency receiving hearing oral learning earphone comprises a first hearing device 13, a second hearing device 2, a sound pick-up 1, and a curved hoop 5 connecting the first hearing device 13 and the second hearing device 2, the earphone further comprises a display 7 integrated on the first hearing device 13 or the second hearing device 2, operating keys (including a frequency adjusting key 8, a frequency adjusting switch 9, a volume adjusting key 10, and a microphone switch 12) are further arranged below the display 7, a speaker integrated in the first hearing device 13 and/or the second hearing device 2 is provided, a battery compartment 3 is arranged outside the speaker, a rod antenna 6 is arranged on the first hearing device 13 or the second hearing device 2, the sound pick-up 1 is coupled with the earphone, at least one of the first hearing device 13 and the second hearing device 2 further comprises a printed circuit board, the printed circuit board comprises a main control unit, a frequency modulation receiving function unit, an electronic change-over switch unit and an amplification function unit, wherein the frequency modulation receiving function unit, the electronic change-over switch unit and the amplification function unit are all electrically connected with the main control unit.

Example 2

Example 2 has substantially the same structure as that of embodiment 1, except that the arcuate clamp 5 further includes adjusting means 4 provided at both side end portions of the body of the arcuate clamp 5, and the ends of the adjusting means 4 are connected to the first and second hearing means 13 and 2, respectively.

Example 3

A hearing oral learning earphone with fixed frequency receiving function comprises an amplifying function unit circuit, a frequency modulation receiving function unit circuit, a man-machine interface unit and a main control unit, wherein the main control unit switches the working state of the unit circuit through a control unit circuit to start the relevant functions of the unit circuit, the main body of the casing is a pair of headset, a telescopic antenna 6, a display screen 7, operation keys (comprising a frequency adjusting key 8, a frequency modulation switch 9, a volume adjusting key 10 and a microphone switch 12), a battery chamber 3 and a sound pickup 1 are arranged on the casing, a frequency modulation broadcasting receiving demodulation unit integrated circuit, a main control unit integrated circuit, an electronic switch integrated circuit and an audio amplification unit integrated circuit are arranged in the casing, the main control unit is a brain MCU control unit of the circuit, an operator sends an instruction to an MCU through the combination of the keys, the MCU outputs a control level through internal operation by the corresponding function pin, then transmitting to other auxiliary circuits to realize the required function, the MCU control unit circuit also comprises a liquid crystal display part and a function key part.

Example 4

Example 4 has substantially the same structure as that of embodiment 3, except that,

the shell of the headset is also provided with an earphone audio jack 11, and the audio jack 11 on the earphone can also be adapted to other playing media, such as mobile phones, computers, MP3 and other devices for autonomous learning.

The following is a description of the working principle and the structural relationship between the circuits of the present invention with reference to the embodiments:

as shown in fig. 3-5, the power supply of the Main Control Unit (MCU) is provided by two batteries (3V) No. 5, as long as the batteries are installed, the Main Control Unit (MCU) applies voltage, the working voltage of the radio chip RDA5807FP is also directly supplied by the batteries, the Main Control Unit (MCU) controls the working state of the radio chip RDA5807FP, and specifically, the Main Control Unit (MCU) realizes that the radio chip RDA58 5807FP is in working and sleeping states through the SCK and the SDA interconnected by the two chips.

The operator sends an instruction to the MCU through the key combination, the MCU enables a corresponding functional pin to output a control level through internal operation and then transmits the control level to other auxiliary circuits to realize the required function, and the MCU control unit circuit further comprises a liquid crystal display part and a functional key part.

The FM broadcast receiving demodulation unit integrated circuit adopts an advanced radio receiving chip RDA5807FP with stable received signals, signals sent by a FM transmitter are received by a telescopic antenna and then coupled to 4 pins of the RDA5807FP through a capacitor C5, and after internal processing, the signals are output through 12 and 13 pins of the chip and pass through C2 and R4; c3 and R19 are transmitted to two-way speakers,

pins

7 and 8 of the chip are communicated with

pins

1 and 2 of the MCU, and the frequency and the volume are adjusted by receiving instructions, and operations such as startup and shutdown, radio station access and the like are realized.

The amplifying functional unit comprises a microphone amplifying and volume adjusting part, after receiving the voice of a speaker, the directional microphone MK1 converts the voice signal into an electric signal, and the electric signal is sent to a signal input pin 2822 through C16, D1, C17 and C19:

pins

6 and 7, which are output from

pins

1 and 3 after being internally amplified, and then pass through C18 and R15; c21 and R3 are transmitted to a loudspeaker, because MK1 is an electret microphone, and needs to be loaded with a bias voltage to work, the voltage is controlled, when the microphone function is turned on, 4 pins of the MCU output 1 low level, the low level is sent to the base of Q2 (8550) to control the conduction of the base, therefore VDD2 can reach the positive pole of MK1 through R9 and R14, and the directional microphone can work normally.

When the volume is required to be adjusted, the function of the microphone is firstly turned on, and the volume of the microphone is adjusted. The specific implementation mode is as follows: when the volume on the panel is pressed, an electromagnetic pulse is output by the 3 pin of the MCU and transmitted to a filter circuit consisting of R10, R11, R12, C13 and C14, and the voltage loaded to the anode of the diode D1 is different along with the difference of the set and adjusted volume, so that the signal intensity passing through the D1 is controlled, and the adjustment of the volume of the microphone is realized.

In fig. 3, the operating voltage of the power amplifier circuit chip 2822 is controlled by an electronic switch, when the microphone function is turned on, the transistor 8550 is turned on, the amplifier circuit whose core is the power amplifier circuit chip 2822 starts to operate, and the microphone is loaded with a bias voltage to start to operate, and in this embodiment, the microphone function and the frequency modulation function can operate independently.

The utility model has the advantages that: firstly, the user can only select the channel with fixed program in the earphone, and the channel can be customized according to the user requirement during production, the number is 20, and the number can also be larger or smaller than the number, so that the user can only receive the campus radio station frequency with corresponding frequency, and the students in middle and primary schools can be prevented from listening to entertainment broadcast.

And secondly, the working states of all the functional modules are controlled based on an operation interface formed by the master control integrated circuit, the LCD and the keyboard, so that the multi-mode work among the functions of receiving the frequency modulation broadcast and amplifying the sound of a receiver in the earphone is realized, and the requirements under different application scenes are met by different function combinations.

Thirdly, the earphone receiver transmits the user's voice back to the local loudspeaker after the amplification circuit expands the sound, so that the student can read the small voice and listen the large voice.

The earphone is wrapped by the sponge earmuffs, so that the noise of the surrounding environment is effectively reduced, and students in the whole class use the earphone together when reading early without mutual influence. Effectively improving the special attention.

The audio jack on the earphone can also be adapted to other playing media, such as devices of mobile phones, computers, MP3 and the like for autonomous learning.

Therefore, the utility model discloses other earphones relatively, more are suitable for middle and primary schools classroom auxiliary teaching, and the language class study courseware is listened to in unison to follow and read the study.

The utility model discloses mainly to receiving the improvement that hearing spoken language study earphone goes on frequently surely, above only do the utility model discloses a preferred embodiment has, consequently not is limited to promptly the utility model discloses a patent range, the event is held the use the utility model discloses simple and easy change and the equivalent transform that patent specification and schema content do all should be contained in the patent range of the utility model.

Claims

1. The utility model provides a fixed frequency receives hearing spoken language study earphone, includes first auditory device (13), second auditory device (2), adapter (1) and arc clamp (5) that first auditory device (13) and second auditory device (2) are connected, its characterized in that: the headset further comprises a display screen (7) integrated on the first hearing device (13) or the second hearing device (2), an operating key and a loudspeaker integrated in the first hearing device (13) and/or the second hearing device (2) are arranged below the display screen (7), a battery chamber (3) is arranged outside the loudspeaker, a pull rod antenna (6) is arranged on the first hearing device (13) or the second hearing device (2), the sound pick-up (1) and the earphone are mutually coupled, at least one of the first hearing device (13) and the second hearing device (2) further comprises a printed circuit board, the printed circuit board comprises a main control unit, a frequency modulation receiving function unit, an electronic change-over switch unit and an amplification function unit, and the frequency modulation receiving function unit, the electronic change-over switch unit and the amplification function unit are electrically connected with the main control unit.

2. The fixed-frequency receiving hearing spoken language learning headset of claim 1, wherein: the operation buttons comprise a frequency adjusting key (8), a frequency modulation switch (9), a volume adjusting key (10) and a microphone switch (12).

3. The fixed-frequency receiving hearing spoken language learning headset of claim 1, wherein:

arc clamp (5) are still including setting up adjusting device (4) at arc clamp (5) body both sides tip, first auditory device (13) and second auditory device (2) are connected respectively to adjusting device's end.

4. The fixed-frequency receiving hearing spoken language learning headset of claim 1, wherein: the frequency modulation receiving functional unit adopts fixed frequency receiving.

5. The fixed-frequency receiving hearing spoken language learning headset of claim 1, wherein: the first hearing device (13) and/or the second hearing device (2) are/is also provided with an earphone audio jack (11).

6. The fixed-frequency receiving hearing spoken language learning headset of claim 1, wherein: the main control unit controls the frequency modulation receiving function unit and the amplification function unit to work simultaneously or independently through the electronic change-over switch unit.

7. The fixed-frequency receiving hearing spoken language learning headset of claim 1, wherein: the amplification functional unit realizes the functions of sound amplification of the sound pick-up (1) and sound transmission back to the earphone loudspeaker.