CN207587379U - A kind of multifunctional combination phonograph and its device - Google Patents

Abstract

The utility model discloses a kind of multifunctional combination phonograph and its device, including：Phonograph core, electricity sing circuit, tape audio circuit, AM/FM radio reception circuit, CD circuits, Bluetooth circuit, switching switch circuit, volume control circuit, power amplification circuit, loudspeaker, power transformer and rectification circuit；The phonograph core connection electricity sings circuit；The electricity sings circuit, tape audio circuit, AM/FM radio reception circuit, CD circuits and Bluetooth circuit and connects switching switch circuit respectively；The switching switch circuit passes sequentially through volume control circuit and connects loudspeaker with power amplification circuit；The power transformer connects switching switch circuit and power amplification circuit by rectification circuit respectively；Phonograph is allowd to play the audio signal in the sources such as vinyl record, tape, CD, bluetooth and radio, multiple functions bring great convenience to user.

Description

A kind of multifunctional combination phonograph and its device

Technical field

The utility model is related to phonograph technical field, more particularly to a kind of multifunctional combination phonograph and its device.

Background technology

Gramophone is called phonograph, is a kind of playback set, voice storage with acoustic method in disc（Disk）It is flat In the arc cutting carved on face.Disc is placed on turntable, is rotated under stylus.Gramophone is the numerous great real of Edison With one of novel, because disc can more easily massive duplication, playing time be also longer than most of tubular recording mediums.

It is various that there are many phonographs currently on the market, but substantially all without Bluetooth receiving function, and with intelligent mobile The development of terminal, more and more people use smart mobile phone, easy to carry since smart mobile phone is small, and possess music Playing function, more and more people like the song of oneself hobby to preserve in mobile phone, can listen whenever and wherever possible in this way Permitted the song liked to oneself.And existing phonograph, due to the function of all being received substantially without bluetooth, can not realize each terminal As the song inside mobile phone plays on phonograph, it has not been convenient to user.Existing phonograph can only play vinyl record, Wu Fabo Put the audio signal of CD, tape and AM/FM radio reception, that is to say, that existing phonograph function is single, does not have broadcasting other forms Or the function of the audio signal of storage medium, such as CD playing functions, tape playing function, bluetooth playing function and radio work( Can etc., bring inconvenience to user.And the structure of existing phonograph is not compact, and occupied space is big, of high cost.

Thus the prior art could be improved and improve.

Utility model content

Part in view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of multi-function combined electrics to sing Machine and its device, it is intended to solve the problems, such as that existing phonograph function is single.

In order to achieve the above object, the utility model takes following technical scheme：

A kind of multi-function combined electric player apparatus, wherein, including：

For reading the phonograph core of disc audio signal；

Electricity for being handled disc audio signal sings circuit；

For reading the tape audio circuit of tape audio signal；

For receiving the AM/FM radio reception circuits of AM/FM audio signals；

For reading the CD circuits of CD audio signals；

For receiving the Bluetooth circuit of Bluetooth audio signals；

For the switching switch circuit of switched audio signal output；

For adjusting the volume control circuit of audio signal volume；

For the power amplification circuit being amplified to audio signal；

For the loudspeaker of playing audio signal；

For carrying out the power transformer of AC-DC conversion；

For carrying out the rectification circuit of rectification to direct current signal；

The phonograph core connection electricity sings circuit；The electricity sings circuit, tape audio circuit, AM/FM radio reception circuit, CD electricity Road and Bluetooth circuit connect switching switch circuit respectively；The switching switch circuit passes sequentially through volume control circuit and power is put Big circuit connection loudspeaker；The power transformer connects switching switch circuit and power amplification circuit by rectification circuit respectively.

The multi-function combined electric player apparatus, wherein, it further includes：LED display；The LED display connection is cut Change switching circuit.

The multi-function combined electric player apparatus, wherein, it further includes：Earphone interface and RCA output interfaces；The earphone Interface connects power amplification circuit, and the RCA output interfaces connect switching switch circuit.

The multi-function combined electric player apparatus, wherein, the AM/FM radio reception circuit includes：For receiving AM signals AM magnetic rod antennas；

For receiving the FM antennas of FM signals；

For carrying out the electrostatic protection module of electrostatic protection to FM signals；

For AM signals or FM signals to be converted to the radio receiver module of corresponding audio signal；

For the audio output module being filtered to audio signal；

For carrying out AM or FM selections and adjusting the selection tune platform module of platform；

For carrying out the radio reception power regulator module of voltage stabilizing to power supply；

Purposes provides the clock module of clock signal；

For carrying out the LED indication module of signal designation；

The AM magnetic rod antennas connect audio output module by radio receiver module；The FM antennas, electrostatic protection module, Radio receiver module and audio output module are sequentially connected；The radio reception power regulator module, clock module and LED indication module point Radio receiver module is not connected；The radio receiver module also adjusts platform module to connect radio reception power regulator module by selection.

The multi-function combined electric player apparatus, wherein, the electrostatic protection module includes：First diode, second Diode, the first capacitance and the second capacitance；The anode of first diode connects the cathode of FM antennas, the second diode respectively And radio receiver module；The cathode of first diode passes through the first capacitance and the second capacitance connection radio receiver module respectively；Institute State the minus earth of the first diode；The anode of second diode connects the cathode of the first diode；

The radio receiver module includes：Radio chip；The AMINN pins and AMINP pins of the radio chip are all connected with AM magnetic rod antennas；The RFINP pins of the radio chip connect FM antennas and electrostatic protection module respectively；The radio chip RFGNDE pins, DVSS pins and DVDD pins are all connected with electrostatic protection module；The STIN pins connection of the radio chip is received Sound power regulator module；The ST pins connection LED indication module of the radio chip；The TUNINP pins of the radio chip, VOL pins and AM-FM pins are hanging；The RFVDD pins of the radio chip, AVDD pins, STALP pins, XTALN pins and AVSS pins are all connected with clock module；The LOUT pins and ROUT pins of the radio chip are all connected with audio output module；Institute It states the SPAN pins of radio chip and CH pins is all connected with selection and adjusts platform module；The model KT0932 of the radio chip.

The multi-function combined electric player apparatus, wherein, the audio output module includes：First resistor, the second electricity Resistance, 3rd resistor, the 4th resistance, third capacitance, the 4th capacitance, the 5th capacitance, the 6th capacitance, the 7th capacitance and the 8th capacitance； One end connection radio receiver module of the third capacitance, is also grounded by first resistor；The other end of the third capacitance is successively Logical 3rd resistor and the 7th capacitance connection audio L channel output terminal, also pass through the 5th capacity earth；The one of 4th capacitance End connection radio receiver module, is also grounded by second resistance；The other end of 4th capacitance leads to the 4th resistance and the 8th successively Capacitance connection audio right channel output terminal, also passes through the 6th capacity earth；

The selection adjusts platform module to include：5th resistance, the 6th resistance, the 7th resistance, first switch and swept resistance；Institute State the sliding end connection radio receiver module of swept resistance；The first fixing end connection radio reception power supply voltage stabilizing mould of the swept resistance Block also connects radio receiver module and first switch respectively by the 5th resistance；The second fixing end ground connection of the swept resistance；Institute First switch is stated respectively by the 6th resistance and the 7th resistance eutral grounding.

The multi-function combined electric player apparatus, wherein, the radio reception power regulator module includes：8th resistance, Nine resistance, the 11st resistance, the 12nd resistance, second switch, the 9th capacitance, the tenth capacitance, the 11st capacitance, the 12nd electricity Appearance, voltage stabilizing chip, the first inductance and the second inductance；The VIN pins of the voltage stabilizing chip connect supply voltage by the 8th resistance End, also passes through the 9th capacitance and the tenth capacity earth respectively；The DGND pins ground connection of the voltage stabilizing chip；The voltage stabilizing chip OUT pins pass through the 11st capacitance and the 12nd capacity earth respectively；The OUT pins of the voltage stabilizing chip also pass sequentially through the 9th Resistance and the first inductance connection radio receiver module, also pass sequentially through the 9th resistance and platform module is adjusted in the selection of the second inductance connection；Institute It states the 9th resistance and passes sequentially through the first inductance and the 12nd resistance connection second switch, the second switch connects radio mould Block；The second switch also passes through the 11st resistance eutral grounding；

The LED indication module includes：Tenth resistance and third diode；The anode of the third diode passes through the tenth Resistance connects radio receiver module, the minus earth of the third diode；

The clock module includes：13rd capacitance, the 14th capacitance, the 15th capacitance, the 16th capacitance and crystal oscillator；Institute One end connection radio receiver module of crystal oscillator is stated, also passes through the 15th capacity earth；The other end connection radio mould of the crystal oscillator Block also passes through the 16th capacity earth；One end of 13rd capacitance connects chip power supply end and radio receiver module respectively, separately One end is grounded；One end of 14th capacitance connects chip power supply end and radio receiver module, other end ground connection respectively.

A kind of multifunctional combination phonograph, wherein, including：Babinet, the babinet include the bottom plate and head cover that are oppositely arranged, It is enclosed successively between the bottom plate and head cover equipped with the first side wall, second sidewall, third side wall and the 4th side wall, in the babinet The first side wall be equipped with multiple openings, the opening of the first side wall be provided with loudspeaker and for combination phonograph into The control panel of row control, the CD playing devices for playing CD are additionally provided in the opening of the first side wall；Described The second sidewall of babinet is equipped with opening, is provided in the opening of the second sidewall and plays dress for playing the tape of tape It puts；The partition board in the box house is provided with is provided with opening on the middle partition board, is set in the opening of the middle partition board There is phonograph core；

Wherein, pcb board is provided in the control panel, is provided on the pcb board for disc audio signal The electricity handled sing circuit, for read tape audio signal tape audio circuit, for receiving AM/FM audio signals AM/FM radio reception circuit, for read CD audio signals CD circuits, for receiving the Bluetooth circuit of Bluetooth audio signals, be used for Switched audio signal output switching switch circuit, for adjust audio signal volume volume control circuit, for audio Power amplification circuit that signal is amplified, for the power transformer that carries out AC-DC conversion and for being carried out to direct current signal The rectification circuit of rectification；

The phonograph core electrical connection electricity sings circuit；The CD playing devices are electrically connected CD circuits；The tape plays dress Put electrical connection tape audio circuit；The electricity sings circuit, tape audio circuit, AM/FM radio reception circuit, CD circuits and Bluetooth circuit Switching switch circuit is connected respectively；The switching switch circuit passes sequentially through volume control circuit and power amplification circuit electrical connection Loudspeaker；The power transformer connects switching switch circuit and power amplification circuit by rectification circuit respectively.

The multifunctional combination phonograph, wherein, offer multiple voice guide holes on the third side wall of the babinet.

The multifunctional combination phonograph, wherein, LED display is provided on the control panel, the LED is shown Display screen is electrically connected switching switch circuit.

Compared to the prior art, multifunctional combination phonograph and its device provided by the utility model are a variety of by integrating Audio playing apparatus so that phonograph can play the audio signal in the sources such as vinyl record, tape, CD, bluetooth and radio, It brings great convenience to user.

Description of the drawings

Fig. 1 is the circuit diagram of multi-function combined electric player apparatus provided by the utility model.

Fig. 2 is the structure diagram of AM/FM radio reception circuit preferred embodiment provided by the utility model.

Fig. 3 is the circuit diagram of AM/FM radio reception circuit Application Example provided by the utility model.

Fig. 4 is the Structure explosion diagram of multifunctional combination phonograph provided by the utility model.

Specific embodiment

The utility model provides a kind of multifunctional combination phonograph and its device.To make the purpose of this utility model, technology Scheme and effect are clearer, clear and definite, and the utility model is further described in the embodiment that develops simultaneously referring to the drawings.It should Understand, specific embodiment described herein only to explain the utility model, is not used to limit the utility model.

Referring to Fig. 1, Fig. 1 is the circuit diagram of multi-function combined electric player apparatus provided by the utility model, such as Fig. 1 It is shown, a kind of the utility model offer multi-function combined electric player apparatus, including：Electricity for reading disc audio signal is sung Movement 11；Electricity for being handled disc audio signal sings circuit 12；For reading the tape audio of tape audio signal Circuit 13；For receiving the AM/FM radio reception circuit 14 of AM/FM audio signals；For reading the CD circuits 15 of CD audio signals；With In the Bluetooth circuit 16 for receiving Bluetooth audio signals；For the switching switch circuit 17 of switched audio signal output；For adjusting The volume control circuit 18 of audio signal volume；For the power amplification circuit 19 being amplified to audio signal；For playing The loudspeaker 20 of audio signal；For carrying out the power transformer 21 of AC-DC conversion；For carrying out the whole of rectification to direct current signal Current circuit 22；The phonograph core 11 connects electricity and sings circuit 12；The electricity sings circuit 12, tape audio circuit 13, AM/FM radio reception Circuit 14, CD circuits 15 and Bluetooth circuit 16 connect switching switch circuit 17 respectively；The switching switch circuit 17 passes sequentially through Volume control circuit 18 and power amplification circuit 19 connect loudspeaker 20；The power transformer 21 is connected respectively by rectification circuit 22 Connect switching switch circuit 17 and power amplification circuit 19.

Specifically, as shown in Figure 1, the utility model by the way that electricity is sung, tape, radio, CD and Bluetooth circuit synthesis Get up, selection switching is carried out by switching switch circuit, so that phonograph can not only play a record（Namely electricity sings electricity Road and the function of phonograph core）, tape or CD can also be played, the audio signal or antenna that can also play bluetooth reception receive Radio audio signal, realize multiple functions, above-mentioned five functions can be carried out selection by switching switch circuit and play sound Frequency signal.Circuit is sung about phonograph core and electricity, the phonograph core and electricity that existing phonograph can be used sing circuit, this is existing skill Art.About tape audio circuit, AM/FM radio reception circuit, CD circuits and Bluetooth circuit, can be used existing tape playing device, Radio, CD playing devices and bluetooth module are realized.About switching switch circuit, it can be accomplished in several ways, for example use Single pole multiple throw come realize the switching of above-mentioned five functions select, the combinational circuit of multiple single-pole double-throw switch (SPDT)s can also be passed through It realizes, also can be realized by relay circuit, there are many realization methods, and no further details here.And volume control circuit, work( Rate amplifying circuit and rectification circuit are the prior art, are circuit commonly used in the prior art, do not do excessive elaboration herein.About Power transformer is that AC220V is converted to DC12V, and so as to power to power amplification circuit and switching switch circuit, alternating current-direct current turns It is the prior art to change, and no further details here.

Preferably, the multi-function combined electric player apparatus, further includes：LED display 23；The LED display 23 Connect switching switch circuit 17.Specifically, further there is provided LED to show for the multi-function combined electric player apparatus of the utility model Display screen can be used for showing the volume parameters of above-mentioned five functions, for example volume, song title etc., it is also possible to show The running parameter of phonograph.

Preferably, the multi-function combined electric player apparatus, further includes：Earphone interface 24 and RCA output interfaces 25；Institute It states earphone interface 24 and connects power amplification circuit 19, the RCA output interfaces 15 connect switching switch circuit 17.Specifically, Multi-function combined electric player apparatus provided by the utility model not only has loudspeaker function, can also be incited somebody to action by earphone interface 24 Audio signal is output to earphone, so as to allow user can be with earphone receiving.Other electronics can be also transferred to by RCA output interfaces to set Standby middle progress audio broadcasting, is for example output to television set or video disc player, RAC output interfaces are the interface of existing specification, herein not It is described further.

Further, in practical application, when playing the music that radio receives on phonograph, it still will appear sound quality not Good, antenna receives the unstable situation of audio signal, has both influenced use of the user to radio function, and reduce music Audibility.In order to avoid the above situation, the utility model further improves AM/FM radio reception circuits, please refers to figure 2, Fig. 2 be the structure diagram of AM/FM radio reception circuit preferred embodiment provided by the utility model, it is preferable that the AM/FM radio reception Circuit 14 includes：For receiving the AM magnetic rod antennas 110 of AM signals；For receiving the FM antennas 120 of FM signals；For believing FM Number carry out electrostatic protection electrostatic protection module 130；For AM signals or FM signals to be converted to the receipts of corresponding audio signal Sound machine module 140；For the audio output module 150 being filtered to audio signal；For carrying out AM or FM selections and adjusting platform Selection tune platform module 160；For carrying out the radio reception power regulator module 170 of voltage stabilizing to power supply；Purposes provides clock signal Clock module 180；For carrying out the LED indication module 190 of signal designation；The AM magnetic rod antennas 110 pass through radio receiver module 140 connection audio output modules 150；The FM antennas 120, electrostatic protection module 130, radio receiver module 140 and audio output Module 150 is sequentially connected；The radio reception power regulator module 170, clock module 180 and LED indication module 190 connect receipts respectively Sound machine module 140；The radio receiver module 140 also adjusts platform module 160 to connect radio reception power regulator module 170 by selection

Specifically, the AM/FM radio reception circuit is arranged on the pcb board of phonograph, passes through AM magnetic rod antennas and FM days Line receives corresponding radio broadcasting signal, then radio broadcasting signal is carried out by radio receiver module analysis be converted to it is corresponding Then audio left and right sound track signals are filtered output to audio left and right sound track signals, broadcasted by the loud speaker of phonograph, just User can be allowed to hear AM broadcast and FM broadcast.In practical application, selection, which is adjusted, in user adjusts platform module so as to control radio Module carries out zapping.The utility model carries out voltage stabilizing by radio reception power regulator module to supply voltage so that phonograph radio reception The work of circuit is more stablized, and audio left and right sound track signals are filtered by audio output module so that phonograph plays Radio broadcasting signal effect is apparent, and sound quality is more preferable.The utility model is also by LED indication module come shape whether showing work State is brought to user and is significantly facilitated.The utility model increases radio reception circuit on phonograph so that phonograph is also provided with AM/ FM function of radio receiver brings to user and greatly facilitates.

Preferably, referring to Fig. 3, the circuit that Fig. 3 is AM/FM radio reception circuit Application Example provided by the utility model shows It is intended to, in practical application, the AM/FM radio reception circuit is as shown in Figure 3.The electrostatic protection module 130 includes：One or two pole Pipe D1, the second diode D2, the first capacitance C1 and the second capacitance C2；The anode of the first diode D1 connects FM antennas respectively FM, the cathode of the second diode D2 and radio receiver module 140；The cathode of the first diode D1 passes through the first capacitance C1 respectively Radio receiver module 140 is connected with the second capacitance C2；The minus earth of the first diode D1；The sun of the second diode D2 Pole connects the cathode of the first diode D1.Specifically, due to the frequency range of FM antennas, in FM antennas 120 and radio mould Electrostatic protection module 130 is increased between block 140 to carry out electrostatic protection.Especially by two relatively reversed diodes in parallel It realizes, also electrostatic protection and filtering is carried out by the first capacitance C1 and the second capacitance C2.

Preferably, the radio receiver module 140 includes：Radio chip U1；The AMINN pins of the radio chip U1 and AMINP pins are all connected with AM magnetic rod antennas 110；The RFINP pins of the radio chip U1 connect FM antennas 120 and electrostatic respectively Protection module 130；RFGNDE pins, DVSS pins and the DVDD pins of the radio chip U1 is all connected with electrostatic protection module 130；The STIN pins connection radio reception power regulator module 170 of the radio chip U1；The ST pins of the radio chip U1 connect Connect LED indication module 190；The TUNINP pins of the radio chip U1, VOL pins and AM-FM pins are hanging；The radio reception core RFVDD pins, AVDD pins, STALP pins, XTALN pins and the AVSS pins of piece are all connected with clock module 180；The receipts The LOUT pins and ROUT pins of sound chip U1 is all connected with audio output module 150；The SPAN pins of the radio chip U1 and CH pins are all connected with selection and adjust platform module 160.Specifically, the RFINP pins connection FM antennas 120 of the radio chip U1, It is also connected with the anode of the first diode of electrostatic protection module 130；The RFGNDE pins of the radio chip U1 and DVSS pins Ground connection, the DVDD pins of the radio chip U1 pass through the second capacity earth.Wherein, pin is vacantly namely unloaded, does not access Circuit.In practical application, the model KT0932 of the radio chip, can also be used the AM/FM chips of other radio reception.

Preferably, the audio output module 150 includes：First resistor R1, second resistance R2,3rd resistor R3, the 4th Resistance R4, third capacitance C3, the 4th capacitance C4, the 5th capacitance C5, the 6th capacitance C6, the 7th capacitance C7 and the 8th capacitance C8；Institute One end connection radio receiver module 140 of third capacitance C3 is stated, is also grounded by first resistor R1；The third capacitance C3's is another End leads to 3rd resistor R3 and the 7th capacitance C7 connection audio L channel output terminal TULI successively, is also grounded by the 5th capacitance C5； One end connection radio receiver module 140 of the 4th capacitance C4, is also grounded by second resistance R2；The 4th capacitance C4's is another One end leads to the 4th resistance R4 and the 8th capacitance C8 connection audio right channel output terminal TURI successively, is also connect by the 6th capacitance C6 Ground.Specifically, the utility model further on radio reception circuit increase audio output module to audio left and right sound track signals into Row filtering.As shown in figure 3, the LOUT pins of the radio chip U1 are grounded by first resistor R1, third electricity is also passed sequentially through Appearance, 3rd resistor and the 7th capacitance connection audio L channel output terminal TULI, that is, to left to audio by this partial circuit Sound channel signal is filtered.Similarly, the ROUT pins of the radio chip U1 are grounded by second resistance, also pass sequentially through the 4th Capacitance, the 4th resistance and the 8th capacitance connection audio right channel output terminal TURI, so as to which to audio, sound channel signal is filtered again. The sound quality of the radio broadcasting signal made in this way is more preferable.

Preferably, the selection adjusts platform module 160 to include：5th resistance R5, the 6th resistance R6, the 7th resistance R7, first Switch JK1 and swept resistance VR1；The sliding end connection radio receiver module 140 of the swept resistance VR1（Namely radio chip The CH pins of U1）；The first fixing end connection radio reception power regulator module 170 of the swept resistance VR1, also passes through the 5th resistance R5 connects radio receiver module 140 respectively（The namely SPAN pins of radio chip U1）With first switch JK1；The swept resistance The second fixing end ground connection of VR1；The first switch JK1 is grounded respectively by the 6th resistance R6 and the 7th resistance R7.It is specific next It says, when listening to AM/FM broadcast singals, frequency modulation is required for carry out zapping, that is, listen to the broadcasting station of different frequency range, for convenience User raises platform and cost-effective in phonograph, and the use of the new type adjusts platform by swept resistance VR1, by adjusting VR1's Resistance, the corresponding CH pins by radio chip U1 are fed back, so as to fulfill platform is adjusted.In practical application, user can pass through adjusting First switch JK1 realizes tune platform.

Preferably, it is more stable in order to listen to radio broadcasting, regulator circuit is additionally arranged to supply voltage, the radio reception power supply is steady Die block 170 includes：8th resistance R8, the 9th resistance R9, the 11st resistance R11, the 12nd resistance R12, second switch JK2, 9th capacitance C9, the tenth capacitance C10, the 11st capacitance C11, the 12nd capacitance C12, voltage stabilizing chip U2, the first inductance L1 and Two inductance L2；The VIN pins of the voltage stabilizing chip U2 also pass through respectively by the 8th resistance R8 connection power voltage terminal VCC Nine capacitance C9 and the tenth capacitance C10 ground connection；The DGND pins ground connection of the voltage stabilizing chip U2；The OUT of the voltage stabilizing chip U2 draws Foot is grounded respectively by the 11st capacitance C11 and the 12nd capacitance C12；The OUT pins of the voltage stabilizing chip U2 also pass sequentially through 9th resistance R9 and the first inductance L1 connections radio receiver module 140（The namely DVDD pins of radio chip U1）, also lead to successively It crosses the 9th resistance R9 and platform module 160 is adjusted in the second inductance L2 connections selection（Namely the first fixing end of swept resistance VR1）；Institute It states the 9th resistance R9 and passes sequentially through the first inductance L1 and the 12nd resistance R12 connection second switch JK2, the second switch JK2 Connect radio receiver module 140（The namely STIN pins of radio chip U1）；The second switch JK2 also passes through the 11st resistance R11 is grounded.Specifically, the voltage stabilizing chip of model HT7533 can be used in the voltage stabilizing chip U2, can also be used certainly other Voltage stabilizing chip.The utility model is additionally arranged regulator circuit and carries out voltage stabilizing to the voltage of supply voltage VCC, so as to be supplied to radio reception core The voltage of piece U1 is more stable, but also the work of phonograph radio reception circuit is more stable, substantially increases service life, and circuit is more Add stability and security.Further it is additionally arranged the first inductance L1 and the second inductance L2 so that platform mould is adjusted to radio receiver module and selection The power supply of block is more stable.In practical application, user can realize the work of control radio reception circuit by adjusting second switch JK2 Whether.

Please continue to refer to Fig. 3, it is preferable that the LED indication module 190 includes：Tenth resistance R10 and third diode D3；The anode of the third diode D3 passes through the tenth resistance R10 connections radio receiver module 140（Namely radio chip U1's ST pins）, the minus earth of the third diode D3.Specifically, LED indication module 190 is added to indicate that the electricity is sung The working condition of machine radio reception circuit, can work be indicated whether by light on and off state.

Preferably, the clock module 180 includes：13rd capacitance C13, the 14th capacitance C14, the 15th capacitance C15, 16th capacitance C16 and crystal oscillator Y1；One end connection radio receiver module 140 of the crystal oscillator Y1（Namely radio chip U1's STALP pins）, also it is grounded by the 15th capacitance C15；The other end connection radio receiver module 140 of the crystal oscillator Y1（Namely The XTALN pins of radio chip U1）, also it is grounded by the 16th capacitance C16；One end of the 13rd capacitance C13 connects respectively Meet chip power supply end VDD and radio receiver module 140（Namely the RFVDD pins of radio chip U1 and AVDD pins）, the other end Ground connection；One end of the 14th capacitance C14 connects chip power supply end VDD and radio receiver module 140 respectively（Namely radio reception core The RFVDD pins of piece U1 and AVDD pins）, other end ground connection.In practical application, the AVSS pins of the radio chip U1 are also It is grounded by the 16th capacitance C16.Specifically, by the clock signal radio reception circuit of crystal oscillator generation sequentially in time Work.It is the prior art about power voltage terminal VCC and chip power supply end VDD, can voltage value be set according to actual circuit.This reality Further provide a kind of AM/FM radio reception circuit with novel so that phonograph also have AM and FM function of radio receiver, the operation is stable, Sound quality is preferable, has good application prospect.

Referring to Fig. 4, Fig. 4 is the Structure explosion diagram of multifunctional combination phonograph provided by the utility model.Such as Fig. 4 institutes Show, the utility model additionally provides a kind of multifunctional combination phonograph, and the multifunctional combination phonograph includes：Babinet 30, institute It states babinet 30 and includes the bottom plate 31 being oppositely arranged and head cover 32, enclosed successively equipped with the first side between the bottom plate 31 and head cover 32 Wall 33, second sidewall 34,35 and the 4th side wall 36 of third side wall are equipped with multiple open on the first side wall 33 of the babinet 30 Mouthful, it is provided with loudspeaker 20 and in the opening of the first side wall 33 for the control panel that is controlled of combination phonograph 37, the CD playing devices 38 for playing CD are additionally provided in the opening of the first side wall 33；The of the babinet 30 Two sidewall 34s are equipped with opening, and the tape playing device for playing tape is provided in the opening of the second sidewall 34 39；The partition board 40 in the babinet 30 is internally provided with is provided with opening on the middle partition board 40, in opening for the middle partition board 40 Phonograph core 11 is provided at mouthful；

Wherein, pcb board 41 is provided in the control panel 37, is provided on the pcb board 41 for disk-recording The electricity that frequency signal is handled sing circuit 12, for read tape audio signal tape audio circuit 13, for receiving AM/FM The AM/FM radio reception circuit 14 of audio signal, for read CD audio signals CD circuits 15, for receiving Bluetooth audio signals Bluetooth circuit 16, the switching switch circuit 17 for switched audio signal output, the volume control for adjusting audio signal volume Circuit 18 processed, the power amplification circuit 19 for being amplified to audio signal, the power supply transformation for carrying out AC-DC conversion Device 21 and the rectification circuit 22 for carrying out rectification to direct current signal；

The phonograph core 11 is electrically connected electricity and sings circuit 12；The CD playing devices 38 are electrically connected CD circuits 15；The magnetic Band playing device 39 is electrically connected tape audio circuit 13；The electricity sings circuit 12, tape audio circuit 13, AM/FM radio reception circuits 14th, CD circuits 15 and Bluetooth circuit 16 connect switching switch circuit 17 respectively；The switching switch circuit 17 passes sequentially through volume Control circuit 18 and power amplification circuit 19 are electrically connected loudspeaker 20；The power transformer 21 is connected respectively by rectification circuit 22 Switching switch circuit 17 and power amplification circuit 19.

Specifically, in order to further save space, reduce small product size, realize the miniaturization of phonograph, this practicality is new The multifunctional combination phonograph that type provides, practical structures are a babinet 30, and babinet 30 is then made of six tablets, respectively on Opposite bottom plate 31 and head cover 32 and sequentially connected four sides down, that is, the first side wall 33, second sidewall 34, Three side walls 35 and the 4th side wall 36.In order to reduce small product size, the utility model offers multiple openings in the first side wall 33, such as Shown in Fig. 4, three openings are opened up, the wherein opening on both sides is used to place or install loudspeaker 20, that is, there is provided two loudspeakers 20 or loud speaker, intermediate larger opening is then the control panel 37 placed for being controlled combining phonograph, this Sample, reduces small product size, and user can operate and control the working condition of phonograph on the first side wall.About control panel 37 be routine techniques, is provided with multiple corresponding control buttons above.Preferably, on the first side wall at intermediate larger open also CD playing devices 38 are provided with, the primary structure of CD playing devices 38 is located in box house, passes through opening for the first side wall CD can be put into CD playing devices 38 by mouth to be played out.And there are many realization sides in the prior art for CD playing devices 38 Formula, details are not described herein again.Likewise, opening is equipped in second sidewall 34, it is corresponding to be used for placing tape playing device 39, tape The primary structure of playing device 39 is also in box house, and user plays a tape to tape to play and fill by the opening of second sidewall 34 It is played out in putting 39.Likewise, the babinet 30 is internally provided with middle partition board 40, middle partition board 40 sets opening to place phonograph Core 11.In practical application, being provided with pcb board 41 in the control panel 37, set as shown in Figure 1 on the pcb board 41 Circuit, pcb board is electrically connected with phonograph core 11, CD playing devices 38 and tape playing device 39, so as to focus on not The Audio Signal Processing of congenerous, in this way but also product with compact structure, smallerization.Foregoing circuit is sung with multi-function combined electric Circuit is identical in machine device, and details are not described herein again.

Preferably, multiple voice guide holes 42 are offered on the third side wall 35 of the babinet 30.For multi-function combined electric The sound quality of phonograph is more preferable, and multiple voice guide holes 42, preferably 2 are opened up on third side wall 35.

Preferably, LED display 23, the electrical connection of LED display 23 switching are provided on the control panel 37 Switching circuit 17.That is, LED display can show the working condition and parameter of multifunctional combination phonograph, this practicality is new Type is disposed on control panel 37, observes adjusting result when being adjusted on the control panel conducive to user simultaneously.

In conclusion a kind of multifunctional combination phonograph provided by the utility model and its device, including：Phonograph core, Electricity sings circuit, tape audio circuit, AM/FM radio reception circuit, CD circuits, Bluetooth circuit, switching switch circuit, volume control electricity Road, power amplification circuit, loudspeaker, power transformer and rectification circuit；The phonograph core connection electricity sings circuit；The electricity sings electricity Road, tape audio circuit, AM/FM radio reception circuit, CD circuits and Bluetooth circuit connect switching switch circuit respectively；The switching is opened Powered-down road passes sequentially through volume control circuit and connects loudspeaker with power amplification circuit；The power transformer passes through rectification circuit point It Lian Jie switching switch circuit and power amplification circuit so that phonograph can play vinyl record, tape, CD, bluetooth and receipts The audio signal in the sources such as sound machine, multiple functions bring great convenience to user, and sound quality is preferable, product with compact structure, band To greatly facilitate.

It is understood that for those of ordinary skills, can with technical solution according to the present utility model and The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement should all belong to appended by the utility model Scope of the claims.

Claims (10)

1. a kind of multi-function combined electric player apparatus, which is characterized in that including：

For reading the phonograph core of disc audio signal；

Electricity for being handled disc audio signal sings circuit；

For reading the tape audio circuit of tape audio signal；

For receiving the AM/FM radio reception circuits of AM/FM audio signals；

For reading the CD circuits of CD audio signals；

For receiving the Bluetooth circuit of Bluetooth audio signals；

For the switching switch circuit of switched audio signal output；

For adjusting the volume control circuit of audio signal volume；

For the power amplification circuit being amplified to audio signal；

For the loudspeaker of playing audio signal；

For carrying out the power transformer of AC-DC conversion；

For carrying out the rectification circuit of rectification to direct current signal；

The phonograph core connection electricity sings circuit；The electricity sing circuit, tape audio circuit, AM/FM radio reception circuit, CD circuits and Bluetooth circuit connects switching switch circuit respectively；The switching switch circuit passes sequentially through volume control circuit and power amplification electricity Road connects loudspeaker；The power transformer connects switching switch circuit and power amplification circuit by rectification circuit respectively.

2. multi-function combined electric player apparatus according to claim 1, which is characterized in that further include：LED display；Institute State LED display connection switching switch circuit.

3. multi-function combined electric player apparatus according to claim 1, which is characterized in that further include：Earphone interface and RCA Output interface；The earphone interface connects power amplification circuit, and the RCA output interfaces connect switching switch circuit.

4. multi-function combined electric player apparatus according to claim 1, which is characterized in that the AM/FM radio reception circuit packet It includes：For receiving the AM magnetic rod antennas of AM signals；

For receiving the FM antennas of FM signals；

For carrying out the electrostatic protection module of electrostatic protection to FM signals；

For AM signals or FM signals to be converted to the radio receiver module of corresponding audio signal；

For the audio output module being filtered to audio signal；

For carrying out AM or FM selections and adjusting the selection tune platform module of platform；

For carrying out the radio reception power regulator module of voltage stabilizing to power supply；

Purposes provides the clock module of clock signal；

For carrying out the LED indication module of signal designation；

The AM magnetic rod antennas connect audio output module by radio receiver module；The FM antennas, electrostatic protection module, radio reception Machine module and audio output module are sequentially connected；The radio reception power regulator module, clock module and LED indication module connect respectively Connect radio receiver module；The radio receiver module also adjusts platform module to connect radio reception power regulator module by selection.

5. multi-function combined electric player apparatus according to claim 4, which is characterized in that the electrostatic protection module packet It includes：First diode, the second diode, the first capacitance and the second capacitance；The anode of first diode connects FM days respectively The cathode and radio receiver module of line, the second diode；The cathode of first diode passes through the first capacitance and the second electricity respectively Hold connection radio receiver module；The minus earth of first diode；The anode of second diode connects the first diode Cathode；

The radio receiver module includes：Radio chip；The AMINN pins and AMINP pins of the radio chip are all connected with AM magnetic Staff aerial；The RFINP pins of the radio chip connect FM antennas and electrostatic protection module respectively；The radio chip RFGNDE pins, DVSS pins and DVDD pins are all connected with electrostatic protection module；The STIN pins connection of the radio chip is received Sound power regulator module；The ST pins connection LED indication module of the radio chip；The TUNINP pins of the radio chip, VOL pins and AM-FM pins are hanging；The RFVDD pins of the radio chip, AVDD pins, STALP pins, XTALN pins and AVSS pins are all connected with clock module；The LOUT pins and ROUT pins of the radio chip are all connected with audio output module；Institute It states the SPAN pins of radio chip and CH pins is all connected with selection and adjusts platform module；The model KT0932 of the radio chip.

6. multi-function combined electric player apparatus according to claim 4, which is characterized in that the audio output module packet It includes：First resistor, second resistance, 3rd resistor, the 4th resistance, third capacitance, the 4th capacitance, the 5th capacitance, the 6th capacitance, Seven capacitances and the 8th capacitance；One end connection radio receiver module of the third capacitance, is also grounded by first resistor；The third The other end of capacitance leads to 3rd resistor and the 7th capacitance connection audio L channel output terminal successively, also passes through the 5th capacity earth； One end connection radio receiver module of 4th capacitance, is also grounded by second resistance；The other end of 4th capacitance is successively Logical 4th resistance and the 8th capacitance connection audio right channel output terminal, also pass through the 6th capacity earth；

The selection adjusts platform module to include：5th resistance, the 6th resistance, the 7th resistance, first switch and swept resistance；The cunning The sliding end connection radio receiver module of dynamic resistance；The first fixing end connection radio reception power regulator module of the swept resistance, also Radio receiver module and first switch are connected by the 5th resistance respectively；The second fixing end ground connection of the swept resistance；Described One switch passes through the 6th resistance and the 7th resistance eutral grounding respectively.

7. multi-function combined electric player apparatus according to claim 4, which is characterized in that the radio reception power regulator module Including：8th resistance, the 9th resistance, the 11st resistance, the 12nd resistance, second switch, the 9th capacitance, the tenth capacitance, the tenth One capacitance, the 12nd capacitance, voltage stabilizing chip, the first inductance and the second inductance；The VIN pins of the voltage stabilizing chip pass through the 8th electricity Resistance connection power voltage terminal, also passes through the 9th capacitance and the tenth capacity earth respectively；The DGND pins ground connection of the voltage stabilizing chip； The OUT pins of the voltage stabilizing chip pass through the 11st capacitance and the 12nd capacity earth respectively；The OUT pins of the voltage stabilizing chip The 9th resistance and the first inductance connection radio receiver module are also passed sequentially through, also passes sequentially through the 9th resistance and the choosing of the second inductance connection It selects and adjusts platform module；9th resistance passes sequentially through the first inductance and the 12nd resistance connection second switch, the second switch Connect radio receiver module；The second switch also passes through the 11st resistance eutral grounding；

The LED indication module includes：Tenth resistance and third diode；The anode of the third diode passes through the tenth resistance Connect radio receiver module, the minus earth of the third diode；

The clock module includes：13rd capacitance, the 14th capacitance, the 15th capacitance, the 16th capacitance and crystal oscillator；The crystalline substance One end connection radio receiver module to shake, also passes through the 15th capacity earth；The other end connection radio receiver module of the crystal oscillator, also Pass through the 16th capacity earth；One end of 13rd capacitance connects chip power supply end and radio receiver module, the other end respectively Ground connection；One end of 14th capacitance connects chip power supply end and radio receiver module, other end ground connection respectively.

8. a kind of multifunctional combination phonograph, which is characterized in that including：Babinet, the babinet include the bottom plate that is oppositely arranged and Head cover encloses between the bottom plate and head cover successively equipped with the first side wall, second sidewall, third side wall and the 4th side wall, in institute The first side wall for stating babinet is equipped with multiple openings, and loudspeaker are provided with and for combination electricity in the opening of the first side wall The control panel that phonograph is controlled is additionally provided with the CD playing devices for playing CD in the opening of the first side wall； Opening is equipped in the second sidewall of the babinet, the tape for playing tape is provided in the opening of the second sidewall Playing device；The partition board in the box house is provided with is provided with opening on the middle partition board, in the opening of the middle partition board Place is provided with phonograph core；

Wherein, pcb board is provided in the control panel, is provided with to carry out disc audio signal on the pcb board The electricity of processing sings circuit, for reading the tape audio circuit of tape audio signal, the AM/ for receiving AM/FM audio signals FM radio reception circuit, for read CD audio signals CD circuits, for receive Bluetooth audio signals Bluetooth circuit, for switching Audio signal output switching switch circuit, for adjust audio signal volume volume control circuit, for audio signal The power amplification circuit that is amplified, for the power transformer that carries out AC-DC conversion and for carrying out rectification to direct current signal Rectification circuit；

The phonograph core electrical connection electricity sings circuit；The CD playing devices are electrically connected CD circuits；The tape playing device electricity Connect tape audio circuit；The electricity sings circuit, tape audio circuit, AM/FM radio reception circuit, CD circuits and Bluetooth circuit difference Connect switching switch circuit；The switching switch circuit passes sequentially through volume control circuit and power amplification circuit electrical connection loudspeaker ；The power transformer connects switching switch circuit and power amplification circuit by rectification circuit respectively.

9. multifunctional combination phonograph according to claim 8, which is characterized in that opened on the third side wall of the babinet Equipped with multiple voice guide holes.

10. multifunctional combination phonograph according to claim 8, which is characterized in that be provided on the control panel LED display, the LED display are electrically connected switching switch circuit.