CN201602197U

CN201602197U - Music helmet

Info

Publication number: CN201602197U
Application number: CN2010201068780U
Authority: CN
Inventors: 陈开明
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-27
Filing date: 2010-01-27
Publication date: 2010-10-13
Anticipated expiration: 2020-01-27

Abstract

The utility model relates to a music helmet, including power supply part, player, loudspeaker, the manual control system who sets up in the helmet and can reduce the volume automatic control system of loudspeaker volume according to external noise size. Owing to be equipped with the volume automatic control system that can reduce the loudspeaker volume according to external noise size, when external noise reached certain decibel, volume automatic control system switched on work later control player reduces the audio amplifier of exporting loudspeaker, when listening to the music wearing the helmet like this, when the decibel value of receiving certain noise on every side is big enough to drive volume automatic control system and switches on, it goes to make the player reduce the loudspeaker volume fast, especially when will take place the danger the loud sound whistle of next door vehicle also can let the person who wears the music helmet hear warning information rapidly, reduce the danger that is hit by other vehicles, thereby improve the user and wear the security of music driving, so the utility model discloses a rational in infrastructure, can ensure the person of wearing driving safety.

Description

The music helmet

[technical field]

The utility model relates to a kind of helmet of energy uppick music.

[background technology]

There is the music helmet of various styles present stage, like this people put on the music helmet come by motorcycle, when electric motor car is waited for bus, Yi Bian Yi Bian just can listen to music by bike.But the volume of these current music helmets is can not be self-regulating, promptly can not regulate the sound size according to the noise in the external world, such one puts on the helmet be can't hear outside ambient basically when listening to music sound, even the tucket of vehicle on every side, also be difficult to listen obtain, blowing a whistle loudly of vehicle of next door also can allow the person of helmeting can't hear in the time will causing danger, and this will certainly increase the danger of wearing music helmet person greatly, thereby reduces user's security.

[utility model content]

The purpose of this utility model is to be to overcome the deficiencies in the prior art, and a kind of rational in infrastructure, the music helmet that can guarantee wearer's traffic safety is provided, and it can come automatic regulating volume according to outside noise.

In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals:

A kind of music helmet includes the power pack, player, loudspeaker and the manual control system that are arranged in the helmet, and it also includes the Automatic control of sound volume system that can reduce this loudspeaker volume according to the outside noise size.

In the improvement project to the above-mentioned music helmet, described Automatic control of sound volume system includes external audio receiver, external audio amplifier, rectifier, voltage amplifier and volume switch controller.

In the improvement project to the above-mentioned music helmet, this external audio receiver is that microphone receives a MIC; This audio-frequency amplifier includes coupling capacitance C1 and C3, decoupling capacitance C2 and audio frequency amplification module IC; This rectifier includes filter capacitor C4, resistance R 2, commutation diode D1 and D2; This voltage amplifier includes resistance R 3, R4, R5 and electric current amplifying triode Q1; This volume switch controller includes the switch triode Q2, the Q3 that control left and right sides ear loudspeaker respectively and their biasing resistor R6, R7.

WithPrior art is compared, the beneficial effects of the utility model are: owing to be provided with the Automatic control of sound volume system that can reduce this loudspeaker volume according to the outside noise size, when outside noise reaches certain decibel, the conducting work of Automatic control of sound volume system was controlled player afterwards and was reduced the audio amplifier that outputs to loudspeaker, putting on the helmet when listening to music like this, the decibel value of a certain noise around receive (mainly being the tucket of surrounding vehicles usually) is during even as big as the conducting of drive volume automatic control system, it goes to make player to reduce the loudspeaker volume fast, the blowing a whistle loudly also can allow and wear music helmet person and promptly hear information warning of next door vehicle in the time will causing danger particularly, the danger that minimizing is knocked by other vehicle, wear music helmet traveling security thereby improve the user, so of the present utility model rational in infrastructure, can guarantee wearer's traffic safety.

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

[description of drawings]

Fig. 1 is the schematic perspective view of the utility model embodiment;

Fig. 2 is circuit theory diagrams of the present utility model;

Fig. 3 is the schematic diagram of the Automatic control of sound volume system of the utility model embodiment.

[specific embodiment]

The utility model is a kind of music helmet, as Fig. 1, shown in 2, it includes the power pack 2 that is arranged in the helmet 1, player 3, loudspeaker 4 and manual control system 5 facing to user's ear, and the Automatic control of sound volume system 6 that can reduce these loudspeaker 4 volumes according to the outside noise size, when outside noise reaches certain decibel, the 6 conducting work of Automatic control of sound volume system were controlled player 3 afterwards and were reduced the volume that outputs to loudspeaker, put on the helmet like this when listening to music, the decibel value of a certain noise around receive (mainly being the tucket of surrounding vehicles usually) is during even as big as 6 conductings of drive volume automatic control system, it goes to make player 3 to reduce the loudspeaker volume fast, particularly in the time will causing danger the next door vehicle blow a whistle loudly also can allow wear music helmet person hear information warning rapidly, the danger that minimizing is knocked by other vehicle, wear music helmet traveling security thereby improve the user, so of the present utility model rational in infrastructure, can guarantee wearer's traffic safety.

Described Automatic control of sound volume system 6 is the equal of a voice-operated volume switch.In embodiment as shown in Figure 3, described Automatic control of sound volume system 6 includes external audio receiver 61, external audio amplifier 62, rectifier 63, voltage amplifier 64 and volume switch controller 65, wherein: external audio receiver 61 is that microphone receives a MIC, and R1 is a MIC power supply biasing resistor; Audio-frequency amplifier 62 includes coupling capacitance C1 and C3, decoupling capacitance C2 and audio frequency amplification module IC; Rectifier 63 includes filter capacitor C4, resistance R 2, commutation diode D1 and D2; Voltage amplifier 64 includes resistance R 3, R4, R5 and electric current amplifying triode Q1, and wherein R5 is the current limliting biasing resistor of Q1; Volume switch controller 65 includes the switch triode Q2, the Q3 that control the loudspeaker left and right acoustic channels respectively and their biasing resistor R6, R7.When the person that wears the helmet is listening to music when driving, when external audio (such as car horn) surpasses certain decibel, microphone receives the audible communication signal process IC amplification successively that a MIC receives, rectifier 63 rectifications, form DC voltage behind the capacitor filtering and after voltage amplifier 64 amplifies, remove gauge tap triode Q2 again, Q3, triode formation conducting state is made a return journey control player 3, player 3 reduces the volume that outputs to loudspeaker again diminishes the volume of earphone, allow you hear outside sound, when the external world does not disturb source of sound, switch triode Q2, Q3 does not work, so loudspeaker automatically revert to original volume.Can adjust R2, C4 value, change the switch time-delay degree time of switch triode Q2 and Q3.When the filter capacitor C4 of rectifier 63 and or the value of resistance R 2 when increasing, the time of volume switch controller 65 conducting work increases, the delay time that the loudspeaker volume reduces increases.Audio frequency amplification module IC can be TDA2822, LM386 etc., at these usually IC that adopt the LM386 model more.

Described Automatic control of sound volume system 6 also can be the conducting controller of relatively realizing by the noise decibel, set in advance a certain standard decibel value earlier, when extraneous volume is above standard decibel value, the 6 conducting work of Automatic control of sound volume system, thus reach the volume of automatic reduction loudspeaker.

Power pack 2 can be solar powered, external charge device charging etc., in this embodiment, as shown in Figure 2, it includes solar panel 21, rechargeable battery 22 and external charge device joint 23, and wherein solar panel 21 is installed to out in the irradiation hole 11 on the helmet 1.

Player 3 is USB flash disk, MP3, MP4 playing module normally, and these modules include functions such as decoding, the control of key battle array, audio power amplification, and playing module is connected with MP3, MP4 by USB interface 7.

As shown in Figure 2, manual control system 5 has wireless remote control and manual button K to regulate two kinds, and wherein wireless remote control includes remote controller 51 and infrared receiving terminal 52 etc.; Manually button K includes K1:PLA/PAU and plays Pause key; K2:EQ tonequality is adjusted; K3:PREV/V-last one bent volume down; Next Qu Yinliang of K4:NEXT/V+ such as adds at button.

Claims

1. a music helmet includes the power pack, player, loudspeaker and the manual control system that are arranged in the helmet, it is characterized in that: also include the Automatic control of sound volume system that can reduce this loudspeaker volume according to the outside noise size.

2. the music helmet according to claim 1 is characterized in that: described Automatic control of sound volume system includes external audio receiver, external audio amplifier, rectifier, voltage amplifier and volume switch controller.

3. the music helmet according to claim 2 is characterized in that: this external audio receiver is that microphone receives a MIC; This audio-frequency amplifier includes coupling capacitance C1 and C3, decoupling capacitance C2 and audio frequency amplification module IC; This rectifier includes filter capacitor C4, resistance R 2, commutation diode D1 and D2; This voltage amplifier includes resistance R 3, R4, R5 and electric current amplifying triode Q1; This volume switch controller includes the switch triode Q2, the Q3 that control left and right sides ear loudspeaker respectively and their biasing resistor R6, R7.