Mobile communication terminal
Technical field
This utility model is related to mobile communication technology field, and in particular to a kind of mobile communication terminal.
Background technology
At present, hand-hold mobile communication terminal is widely used, for mobile phone, especially current smart mobile phone application function
Become stronger day by day, the most life requirement of people can be realized by mobile phone, for example seen a film by mobile phone, listen song,
Instant chat etc..
Although current phone is vdiverse in function, most basic topmost function still receives calls, thus on mobile phone
Speaker is requisite.Ventional loudspeakers refer generally to aerial conduction speaker.Driving of the ventional loudspeakers in variable-current
Under, drive oscillating plate (film) vibration to occur and occurs to rub with air, also there is vibration in the air in speaker chambers body therewith, with
Form sound and be delivered to human ear.That is, ventional loudspeakers are that sound is delivered to human ear by medium of air.But, just because of
The reason, in a noisy environment, the sound that ventional loudspeakers send is easy to be submerged in background noise, and often user is made
Into great inconvenience, easily conversation content is heard by other people again when the sound of ventional loudspeakers is excessive, be unfavorable for that protection is hidden
It is private.
In fact, sound wave also has another route of transmission, here it is being vibrated directly acoustic vibration incoming interior by skull
Ear.For example, the tuning fork after percussion, it is placed on after ear on mastoid or os prefrontale, can also experiences sound.People pass through this
The mode of skull solid sclerotin conduction is called " bone conduction ".Thus the movement using bone conduction mode such as bone conduction mobile phone has been drawn
Communication terminal.These mobile communication terminals are provided with bone-conduction speaker, when user is attached to face on bone-conduction speaker, sound
The direct incoming internal ear of ripple vibration, allows users to hear sound, and other people cannot then hear the sound.Obviously, this movement
Communication terminal is conducive to keeping secret, while the people for also allowing for existing dysaudia uses.
However, when using the mobile phone of bone-conduction speaker is provided with, it is necessary to which bone-conduction speaker is close to ear
Near, can just hear sound.When not being close to or being slightly away from ear, people will be unable to perception sound to otherwise bone-conduction speaker
Sound.Therefore, people can't depend on bone-conduction speaker for a long time, simply in a noisy environment, just be necessary to pass using bone
Lead speaker.Once leave noisy environment, you can with using traditional ventional loudspeakers, it is therefore necessary to which providing one kind can be i.e.
When the device that easily switches.
Utility model content
In view of this, it is necessary to which a kind of easy switching of raising one's voice, simple structure, mobile communication terminal easy to use are provided.
A kind of mobile communication terminal, which includes terminal body and display screen, and the terminal body is provided with one and commonly raises
Sound device, the mobile communication terminal also include bone-conduction speaker, pressure transducer and audio output switch controller, described
Pressure transducer arranges and is installed in the side of terminal body corresponding to bone-conduction speaker position, and the pressure transducer is used for
Receive external pressure and pressure signal be transferred to into audio output switch controller, the audio output switch controller with it is described
Pressure transducer connects, for audio signal to be output is sent to the ventional loudspeakers or the bone according to pressure signal
Conduction speaker.
Further, the bone-conduction speaker is arranged close to the position of ventional loudspeakers, and the pressure transducer is embedding
Located at any one side or the terminal body back side of terminal body.
Further, the pressure transducer is when continuous are received or during predetermined pressure, send pressure signal to
Audio output switch controller.
Further, the pressure transducer includes that pressure that compression block contacted with compression block receives diaphragm and pressure is quick
Sensing unit, the compression block protrude from terminal body, and the pressure-sensing device is used to sense the pressure change that pressure receives diaphragm
Change, and pressure signal is transferred to into audio output switch controller.
Further, there is volume control unit in the terminal body, the pressure-sensing device is additionally coupled to volume control
Unit processed, the volume control unit export respective output volume value according to the pressure change of pressure-sensing device.
Further, when the volume control unit senses pressure increase, the signal of output increase volume senses pressure
When power reduces, output reduces the signal of volume.
Further, the terminal body side is provided with groove, and the compression block is embedded in the groove.
Further, there is waterproof pad between the compression block and groove cell wall.
Further, the terminal body side is provided with volume key, and the compression block is combined into one with volume key.
Further, the terminal body is additionally provided with the installing hole of accommodating bone-conduction speaker, and the installing hole is passed with bone
Lead, make bone-conduction speaker flexible adhesive in terminal body.
In above-mentioned mobile communication terminal, coordinated by pressure transducer and audio output switch controller to control audio frequency
Signal switches between ventional loudspeakers or bone-conduction speaker, can be switched according to the needs of user at any time at any time, uses
It is convenient, simple structure.And, using pressure transducer high sensitivity the characteristics of, fast and effeciently can switch over.
Description of the drawings
Fig. 1 is the mobile communication terminal front view of this utility model embodiment.
Fig. 2 is the mobile communication terminal three-dimensional view of this utility model embodiment.
Fig. 3 is local interior's structural representation of the mobile communication terminal of this utility model embodiment.
Fig. 4 is the Audio conversion module frame structure schematic diagram of the mobile communication terminal of this utility model embodiment.
Specific embodiment
This utility model is described in detail below with reference to specific embodiments and the drawings.
Fig. 1 to Fig. 4 is referred to, a kind of mobile communication terminal 10 of this utility model embodiment is shown, which includes terminal master
Body 11 and display screen 101, the terminal body 11 are provided with a ventional loudspeakers 13, and the mobile communication terminal also includes bone
Conduction speaker 15, pressure transducer 16 and audio output switch controller, the pressure transducer 16 correspond to bone conduction
15 position of speaker arranges and is installed in the side of terminal body 11, and the pressure transducer 16 is used to receive external pressure and incite somebody to action
Pressure signal is transferred to audio output switch controller 17, the audio output switch controller 17 and the pressure transducer 16
Connection, for audio signal 19 to be output being sent to the ventional loudspeakers 13 according to pressure signal or the bone conduction is raised
Sound device 15.
Terminal body 11 has shell 110, and display screen 101 is embedded in shell 11.Terminal body 11 also have photographic head with
And SD card groove, USB interface, earphone interface, charging inlet etc., the SD card groove, the USB interface, the earphone interface, institute
State charging inlet to be correspondingly arranged in SD card through hole, USB through holes, earphone through hole, charging through hole.
Specifically, bone-conduction speaker 15 is arranged close to the position of ventional loudspeakers 13, and the pressure transducer 16 is embedding
Located at 11 back side of any one side of terminal body 11 or terminal body.As shown in figure 3, the terminal body 11 is additionally provided with appearance
The installing hole of bone-conduction speaker 15 is put, there is between the installing hole and bone-conduction speaker 15 flexible viscose glue, bone conduction is made
15 flexible adhesive of speaker is in terminal body 11.The inner surface at the rear portion of shell 110 has mounting groove 150, for installing bone
Conduction speaker 15.
The pressure that the pressure transducer 16 includes compression block 161, contact with compression block 161 receives diaphragm 162 and pressure
Sensing element 163, it is preferable that the pressure transducer 16 of the present embodiment is piezoelectric pressure indicator.The compression block 161
Terminal body 11 is protruded from, that is, protrudes from the side of shell 110.The pressure-sensing device 163 is close to pressure and receives diaphragm
162, the pressure change of diaphragm 162 is received for sensing pressure, and pressure signal is transferred to into audio output switch controller 17.
Further, 11 side of the terminal body is provided with groove 166, and the compression block 161 is embedded in the groove 166.Further
Ground, between the compression block 161 and groove cell wall have waterproof pad 165, can waterproof, 161 fix tightly of compression block can be made again
Lean on.
Pressure transducer 16 sends pressure signal and gives audio output switching when continuous are received or during predetermined pressure
Controller 17.In certain embodiments, 16 time delay of pressure transducer can be also set, only in the pressure of certain time delay
Under state, switching signal is just transmitted to audio output switch controller 17, audio signal 19 is switched to from ventional loudspeakers 13
Bone-conduction speaker 15.When needing to switch back, compression block 161 is pressed again.
In addition, having volume control unit in the terminal body 11, the pressure-sensing device 163 is additionally coupled to volume control
Unit processed, the volume control unit export respective output volume value according to the pressure change of pressure-sensing device 163.Thus, fill
Divide the sensivity feature using pressure-sensing device 163, can be with assist control volume.Specifically, the volume control unit sense
When measuring pressure increase, the signal of output increase volume, when sensing pressure reduction, the signal of output reduction volume.Volume control
The external volume key 18 of unit processed, volume key 18 is located at the side of the terminal body 11.In another embodiment, it is described
Compression block 161 is combined into one with volume key 18.Volume control unit could be arranged to pressing once plus a volume value, and press
Certain time delay is pressed, when such as 3 seconds, is started handoff functionality, and the only long switching signal that just transmits on time is cut to audio output
Changer controller 17.
It follows that in above-mentioned mobile communication terminal 10, by pressure transducer 16 and audio output switch controller
17 cooperations are switched between ventional loudspeakers 13 or bone-conduction speaker 15 with controlling audio signal 19, can at any time according to user's
Needs are switched at any time, easy to use, simple structure.And, using pressure transducer 16 high sensitivity the characteristics of, can
Fast and effeciently switch over.
It should be noted that this utility model is not limited to above-mentioned embodiment, essence is created according to of the present utility model
God, those skilled in the art can also make other and change, these changes done according to creative spirit of the present utility model, all
Should be included in this utility model it is claimed within the scope of.