CN100420120C - Inductive charging device of medium player - Google Patents

Inductive charging device of medium player Download PDF

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Publication number
CN100420120C
CN100420120C CNB2005100854900A CN200510085490A CN100420120C CN 100420120 C CN100420120 C CN 100420120C CN B2005100854900 A CNB2005100854900 A CN B2005100854900A CN 200510085490 A CN200510085490 A CN 200510085490A CN 100420120 C CN100420120 C CN 100420120C
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China
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circuit
signal
coil
media
data
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Expired - Fee Related
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CNB2005100854900A
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Chinese (zh)
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CN1710776A (en
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张定港
林荣聪
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Individual
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Expired - Fee Related legal-status Critical Current
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Abstract

The present invention relates to an inductive charging device of a medium player which is a player to convert medium information into audiovisual signals. The present invention comprises a first circuit group and a second circuit group, wherein the first circuit group is arranged in a seat body with an external power supply, the first circuit group further comprises a first coil curl, and the first circuit group releases AC signals through the first coil curl; the second circuit group is arranged in the medium player, and the second circuit group further comprises a second coil curl and a charging circuit; when the second coil curl approaches to the first coil curl, the second coil curl receives the AC signals released by the first coil curl, and the AC signals are converted into electric power by the second circuit group to charge the charging circuit. A power supply connection port does not need to be arranged on an outer shell, and the present invention has no problems of power supply connection port damage, displacement, fold, oxidation and static electricity introduction or moisture infiltration. The outer shell does not need to be provided with the power supply connection port and a data transmission port, and the present invention has no problems of data transmission damage, the displacement, the fold, the oxidation and the static electricity introduction or the moisture infiltration.

Description

The inductive charging device of media player
Technical field
The present invention relates to a kind of inductive charging device of media player, belong to the non-contact charging device field specifically.
Background technology
Media player is meant a kind of player that media article can be converted to sound source signal, and the user can rely on loud speaker or earphone to convert sound source signal to sound to listen to.For example: cassette tape walkman, discman, broadcast receiver, MP3 player (walkman) or the like.
Yet along with the demand of consumption market and improving gradually of science and technology, MP3 player (walkman) main flow that becomes walkman market gradually with MP3 saving format of Digital Transmission and high-compressibility characteristic, it not only has the function of played songs, multinomial digitized function such as also have easily additional recording, radio reception simultaneously, store data.
Existing MP3 player also need be provided with external port such as many for example power connector end mouths, data transmission port simultaneously except the source of sound output connectivity port that must want is set; Even liftable battery case need be set so that change battery.The enforcement schematic diagram of example existing MP3 player as shown in FIG. 1, this MP3 player 9 is provided with relevant necessity such as liftable battery case 91, charging connectivity port 92, data transmission port 93 on the implementation and constitutes the unit, re-use again to cooperating the enforcement of liftable battery case 91, charging connectivity port 92, data transmission port 93, the peripheral accessory of disturbing the people as battery 94, power line 95, data line 96 etc. also must be subsidiary.
The MP3 player is a kind of high-tech electronic product, has comprised electronic building brick, medium storage assembly and transition components, the display module of various precisions in it, and these accurate assemblies infiltrate the back and damage in moist, static even rainwater easily.Especially the MP3 player is a kind of electronic product easy to carry of making every effort to, and a lot of people can be placed on the MP3 player in pocket, knapsack or become entrained on the waistband in the use and implement, and therefore, moist, static is the main cause of the easy damage of MP3 player with drenching with rain always.And liftable battery case 91, charging connectivity port 92, data transmission port 93 ... or other hatch frame that exposes, be the MP3 player and can't reach effective protection against the tide, anlistatig main cause.
Summary of the invention
The purpose of this invention is to provide a kind of non-contact induction type of media player, multi-functional charging device;
Another object of the present invention provides a kind of inductive charging device that does not need to change battery;
Another object of the present invention provides a kind of charging device that carries out the signal transmission in the noncontact mode that uses electric wire, holding wire that reduces;
Another object of the present invention provides a kind of inductive charging device that carries out the signal transmission in the noncontact mode with outer computer or media apparatus;
Another object of the present invention provides a kind of media player inductive charging device that has protection against the tide, antistatic interference and reduce the operation damage.
The special for achieving the above object inductive charging device that a kind of media player is provided, this media player is the player that media information can be converted to audio visual signal, comprise first circuit bank, it is arranged in the pedestal with external power supply, this first circuit bank further comprises first coil, and first circuit bank sees through first coil and disengages AC signal; The second circuit group, it is arranged in the media player, and this second circuit group further comprises second coil and charging circuit; When second coil during near first coil, second coil receives the AC signal that first coil is disengaged, and converts electric power to by the second circuit group again and charges for charging circuit.
First circuit bank further includes oscillating circuit, drive circuit, first resonant circuit; The second circuit group further includes second resonant circuit and current rectifying and wave filtering circuit.
First circuit bank has substituted oscillating circuit, feedback circuit, first control circuit since further including the voltage control frequency oscillation circuit, feedback circuit feeds back to first control circuit with the AC signal that first coil is disengaged, after comparative analysis, be input to the voltage control frequency oscillation circuit by first control circuit, and then the resonance quality that first resonant circuit is produced reaches optimization.
Wherein further be provided with frequency eliminating circuit in first circuit bank.Wherein be provided with first signal processing circuit and display unit in first circuit bank; Be provided with second modulation circuit in the second circuit group, this second modulation circuit can see through the charged state of charging circuit second coil and disengage charging signals, and receive by first coil of first circuit bank, see through first signal processing circuit and display unit demonstration charged state.
Wherein first coil makes first circuit bank enter battery saving mode when not receiving the charging signals that second coil disengages.Further comprise first control circuit, first signal processing circuit and first modulation circuit in first circuit bank; Further comprise secondary signal treatment circuit, second modulation circuit in the second circuit group; First control circuit can be with the media data signal conversion of exterior PC input, behind first signal processing circuit and first modulation circuit, disengage data-signal again by first coil, and, data signal is loaded in the data storage unit of media player through secondary signal treatment circuit and second control circuit by the reception of second coil; The data storage element of media player sees through the second control circuit outputting data signals, and behind second modulation circuit, second coil disengages data-signal and received by first coil, through first signal processing circuit data-signal is imported PC again.
First circuit bank further comprises first signal processing circuit, first control circuit, amplifier, loud speaker; The second circuit group further comprises second control circuit, secondary signal treatment circuit, second modulation circuit; Second control circuit is stored in media player after media article in the data storage unit converts media signal to, disengages media signal by second coil behind secondary signal treatment circuit second modulation circuit; Media signal accepted by first coil after the conversion of first signal processing circuit, first control circuit, amplifier and produce medium message from loud speaker.
Wherein first circuit bank further comprises first control circuit, amplifier, loud speaker, the first infrared ray transmission circuit; The second circuit group further comprises second control circuit, the second infrared ray transmission circuit; First control circuit can transfer to the second infrared ray transmission circuit through the first infrared ray transmission circuit again with the media signal conversion of outside input, and by in the data storage unit of second control circuit with data signal loading medium player; Second control circuit is stored in media player after media article in the data storage unit converts media signal to, transfer to the first infrared ray transmission circuit through the second infrared ray transmission circuit again, and produce medium message from loud speaker by the conversion of first control circuit, amplifier.
Wherein the first infrared ray transmission circuit is replaced into first wireless transceiver circuit, the second infrared ray transmission circuit is replaced into second wireless transceiver circuit.
Media player of the present invention does not need often to change battery, structurally liftable battery case need be set yet; Power supply need be set on shell connect fracture, power line does not need directly media player to be carried out Plug Action yet, does not have the problem of the damage of power connector end mouth, askew folding, oxidation, static importing or permeation of moisture; The power connector end mouth need be set on the shell, data transmission port does not have that transfer of data damage, askew folding, oxidation, static import or the problem of permeation of moisture; Can avoid disturbing the problem that people's circuit is taken in; The user does not need to use with charger or data line, can have a utilization of wider model for the enforcement characteristic of media player.
Description of drawings:
Fig. 1 is the schematic diagram of existing MP3 player;
Fig. 2 is the schematic diagram of a kind of charging device embodiment of the present invention;
Fig. 3 is the charging circuit block diagram of charging device;
Fig. 4 is the charging circuit block diagram of band feedback circuit;
Fig. 5 is the charging circuit block diagram that has frequency eliminating circuit;
Fig. 6 is the charging circuit block diagram that has the display unit that charges;
Fig. 7 is the data block diagram of the charging circuit of biography mutually;
Fig. 8 is the charging circuit block diagram of data downloading and playing;
Fig. 9 is the schematic diagram of a kind of charging device embodiment;
Figure 10 is the charging circuit block diagram that infrared ray is received and sent messages;
Figure 11 is the charging circuit block diagram that wireless type is received and sent messages.
Embodiment:
At existing MP3 player is to change battery or to obtain enough electric energy in the mode of charging, but the user often needs to change frequently battery 94 in the use, or rely on charging connectivity port 92 to be charged with cooperating of power line 95, and the material upload of MP3 player or when downloading still need see through data transmission port 93 and cooperate and could implement with data line 96.
Certainly, MP3 is one of many compression audio formats, for example: WAV, OGG, WMA, APE, AAC, AC3, RMA or the like, for the operation of the media player that makes similar MP3 player more convenient, and solving existing problem points in the aforementioned existing player technical application of taking off, this creation provides following technological means to reach purpose of the present invention.
Shown in Figure 2 is the enforcement schematic diagram of this charging device, charging device mainly comprises one first circuit bank 1 and a second circuit group 2, wherein, first circuit bank 1 is located in the pedestal 4 with external power supply 3, second circuit group 2 be located at one can convert media information to audio visual signal and in the media player 5 play (for example: the player of MP3 player or other audio frequency, video format).Secondly, external power supply 3 can the acquisition mode can be general common domestic power supply, or is provided by the connectivity port with computer or media device, carries out with convenient that power supply is obtained and Information Access.
Embodiment one:
First circuit bank, 1 (see figure 3) further includes one first coil 11, and can disengage AC signal by first coil 11; Second circuit group 2 further comprises second coil 21 and a charging circuit 22; When second coil 21 near first coil 11 in effective release scope the time, second coil 21 can receive the AC signal that first coil 11 is disengaged, and converts electric power to by second circuit group 2 and charge for charging circuit 22.
As shown in Figure 3, the charging circuit block diagram of charging device of the present invention, wherein, first circuit bank 1 includes one first coil 11, oscillating circuit 12, drive circuit 13, first resonant circuit 14; The second circuit group includes one second coil 21, charging circuit 22 (containing rechargeable battery 23), second resonant circuit 24 and current rectifying and wave filtering circuit 25.
Power supply 3 provides first circuit bank 1 at required electric power of when operation, and by oscillating circuit 12 generations one AC signal, the AC signal that is produced is amplified by drive circuit 13 (amplifying circuit), AC signal after the amplification obtains resonance through first resonant circuit 14, via first coil 11 AC signal is disengaged again.After the AC signal that second coil 21 is disengaged near first coil 11, rely on second resonant circuit 24 to convert AC signal to electric power with the configuration of current rectifying and wave filtering circuit 25, after supplying charging circuit 22 that electric power is stored rechargeable battery set in it 23 (being equivalent to power storage body), electric power medium for supplying player 5 is used.The various circuit that adopted in this embodiment all be to those skilled in the art be familiar with, just do not providing its detail circuits figure one by one for this reason.
Embodiment two:
As shown in Figure 4, the charging feedback circuit block diagram of charging device of the present invention, wherein, its enforcement is that former oscillating circuit 12 (can referring to Fig. 3) change is made as a voltage control frequency oscillation circuit, and a feedback circuit 15 and first control circuit 16 is set in first circuit bank 1.Wherein, the mode of feedback circuit 15 can be voltage detecting feedback or current detecting feedback; Secondly, be provided with microprocessor in the first control circuit 16.When feedback circuit 15 feeds back to the AC signal that first coil 11 is disengaged in the first control circuit 16, after first control circuit relies on microprocessor that feedback result is compared analysis, input voltage control frequency oscillating circuit again, and then the resonance quality that first resonant circuit is produced reaches optimization.
Embodiment three:
See Fig. 5, charging device of the present invention has the circuit block diagram of the frequency elimination that charges, its enforcement is to derive based on technical scheme shown in Figure 4, wherein, further be provided with a frequency eliminating circuit 17 in first circuit bank 1, this frequency eliminating circuit 17 is located between voltage control frequency oscillation circuit and the drive circuit 13, can have the effect of frequency elimination to AC signal, makes the AC signal that the coil 11 of winning is disengaged reduce to minimum to the interference of electronic equipment on every side.
Embodiment four:
See the circuit block diagram of Fig. 6, its enforcement is to derive based on technical scheme shown in Figure 4, and wherein, first circuit bank 1 further comprises one first signal processing circuit 18 and a display unit 181; The second circuit group further comprises one second modulation circuit 26.This second modulation circuit 26 can be with the charged state of charging circuit, behind second resonant circuit 24, disengage charging signals by second coil 21, and receive by first coil 11 of first circuit bank 1, see through first signal processing circuit 18 and display unit 181 and make charged state show (its concrete performance can referring to Fig. 9).
Embodiment five:
As shown in Figure 7 can material upload the circuit block diagram of charging device, its enforcement is to derive based on technical scheme shown in Figure 4, wherein, the first line circuit group 1 further comprises a first control circuit 16, one first signal processing circuit 18 and one first modulation circuit 19; Second circuit group 2 is provided with secondary signal treatment circuit 27, second control circuit 28 and second modulation circuit 25 in addition in the second circuit group 2 except comprising second coil 21, charging circuit 22, second resonant circuit 24, current rectifying and wave filtering circuit 25 as shown in Figure 3.Wherein, first control circuit 16 can be with exterior PC media article 7 conversions of input, behind first signal processing circuit 18 and first modulation circuit 19, disengage data-signal again by first coil 11, and, data signal is loaded in the data storage unit 8 of media player through secondary signal treatment circuit 27 and second control circuit 28 by 21 receptions of second coil; Secondly, the data storage unit of media player sees through the second control circuit outputting data signals, and behind second modulation circuit 25, second coil 21 disengages data-signal and received by first coil 11, through first signal processing circuit 18 data-signal is imported PC again.
Embodiment six:
See the circuit block diagram that to download data shown in Figure 8, it is implemented or derives based on technical scheme shown in Figure 4, wherein, first circuit bank 1 further comprises one first signal processing circuit 18, a first control circuit 16, an amplifier 183, a loud speaker 184; Second circuit group 2 further comprises a secondary signal treatment circuit 27, second control circuit 28 and second modulation circuit 26.Second control circuit 28 is stored in media player after media articles in the data storage unit 8 convert media signal to, through secondary signal treatment circuit 27 to second modulation circuits 26, disengages media signal by second resonant circuit, 23 backs by second coil 21 again; First coil, 11 receiving media signals after first signal processing circuit 18 to first control circuit 16, pass through the conversion of amplifier 183 again and produce the medium message from loud speaker 184, play but make media player 5 downloads of media messages carry out message to pedestal 4 by this, it implements the sample attitude can be referring to shown in Figure 9.
Embodiment seven:
See shown in Figure 10ly, its enforcement is still derived based on technical scheme shown in Figure 4, and wherein, first circuit bank 1 further comprises a first control circuit 16, an amplifier 183, a loud speaker 184, one first infrared ray transmission circuit 191; The second circuit group further comprises a second control circuit 28 and the second infrared ray transmission circuit 291.
The media signal conversion that first control circuit 16 can be imported the outside transfers to the second infrared ray transmission circuit 291 through the first infrared ray transmission circuit 191, data signal is loaded in the data storage unit 8 of media player by second control circuit 28 again; Secondly, second control circuit 28 can be stored in media player after media articles in the data storage unit 8 convert media signal to, transfer to the first infrared ray transmission circuit 191 through the second infrared ray transmission circuit 291, from loud speaker 184, produce medium message by first control circuit 16 and amplifier 183 again.
Embodiment eight:
See shown in Figure 11ly, embodiment is derived based on technical scheme shown in Figure 10.Wherein, the first infrared ray transmission circuit 191 is replaced into first wireless transceiver circuit 192; The second infrared ray transmission circuit 291 is replaced into second wireless transceiver circuit 292.
Among each embodiment of Fig. 3~Fig. 8 above, Figure 10~Figure 11, disclosed the various embodiments of this creation media player respectively, it has comprised charging (Fig. 3), signal feedback (Fig. 4), signal frequency elimination (Fig. 5), charging shows that (Fig. 6), medium pass (Fig. 7), medium downloading and playing (Fig. 8), infrared ray transmitting-receiving (Figure 10), wireless receiving and dispatching multiple contactless charging signals such as (Figure 11) and the transmission means of data signal mutually.
In the application of reality, aforesaid every combination of circuits can separately or merge to be implemented, make multimedia player of the present invention can have wireless charging, demonstration simultaneously, and obtain functions such as information is uploaded, downloaded, broadcast from outer computer or media apparatus.The transmission of the relevant charging of the Fig. 6 above shows signal also can adopt infrared ray transmission circuit or the wireless transceiver circuit shown in Figure 10 and Figure 11 to transmit.Therefore, above-listed detailed description is specifying at possible embodiments of the present invention, only embodiment is not in order to limit claim of the present invention, allly do not break away from equivalent embodiment or the change that skill spirit of the present invention is done, for example, equivalence embodiment Deng changing all should be contained in the claim of this case.

Claims (9)

1. the inductive charging device of a media player, this media player is the player that media information is converted to audio visual signal, comprise first circuit bank, it is arranged in the pedestal with external power supply, this first circuit bank further comprises first coil, and first circuit bank sees through first coil and disengages AC signal; The second circuit group, it is arranged in the media player, and this second circuit group further comprises second coil and charging circuit; When second coil during near first coil, second coil receives the AC signal that first coil is disengaged, and converts electric power to by the second circuit group again and charges for charging circuit, it is characterized in that:
First circuit bank further includes: voltage control frequency oscillation circuit, drive circuit, first resonant circuit, feedback circuit, first control circuit, frequency eliminating circuit, wherein, feedback circuit feeds back to first control circuit with the AC signal that first coil is disengaged, after comparative analysis, be input to the voltage control frequency oscillation circuit by first control circuit, and then the resonance quality that first resonant circuit is produced reaches optimization;
The second circuit group further includes second resonant circuit and current rectifying and wave filtering circuit.
2. according to the inductive charging device of claim 1, wherein be provided with first signal processing circuit and display unit in first circuit bank;
Be provided with second modulation circuit in the second circuit group, this second modulation circuit disengages charging signals with the charged state of charging circuit through second coil, and receive by first coil of first circuit bank, see through first signal processing circuit and display unit demonstration charged state.
3. according to the inductive charging device of claim 2, wherein first coil makes first circuit bank enter battery saving mode when not receiving the charging signals that second coil disengages.
4. according to the inductive charging device of claim 1, wherein further comprise first modulation circuit in first circuit bank; Further comprise secondary signal treatment circuit, second modulation circuit in the second circuit group; First control circuit is with the media data signal conversion of exterior PC input, behind first signal processing circuit and first modulation circuit, disengage data-signal again by first coil, and, data signal is loaded in the data memory unit of media player through secondary signal treatment circuit and second control circuit by the reception of second coil; The data memory unit of media player sees through the second control circuit outputting data signals that connects secondary signal treatment circuit and data memory unit, behind second modulation circuit, second coil disengages data-signal and is received by first coil, through first signal processing circuit data-signal is imported PC again.
5. according to the inductive charging device of claim 2, wherein further comprise first modulation circuit in first circuit bank; Further comprise the secondary signal treatment circuit in the second circuit group; First control circuit is with the media data signal conversion of exterior PC input, behind first signal processing circuit and first modulation circuit, disengage data-signal again by first coil, and, data signal is loaded in the data memory unit of media player through secondary signal treatment circuit and second control circuit by the reception of second coil; The data memory unit of media player sees through the second control circuit outputting data signals that connects secondary signal treatment circuit and data memory unit, behind second modulation circuit, second coil disengages data-signal and is received by first coil, through first signal processing circuit data-signal is imported PC again.
6. according to the inductive charging device of claim 1, wherein first circuit bank further comprises amplifier, loud speaker; The second circuit group further comprises second control circuit, secondary signal treatment circuit, second modulation circuit; Second control circuit is stored in media player after media article in the data storage unit converts media signal to, disengages media signal by second coil after secondary signal treatment circuit and second modulation circuit are handled; Media signal accepted by first coil after the conversion of first signal processing circuit, first control circuit, amplifier and produce medium message from loud speaker.
7. according to the inductive charging device of claim 2, wherein first circuit bank further comprises amplifier, loud speaker; The second circuit group further comprises second control circuit, secondary signal treatment circuit; Second control circuit is stored in media player after media article in the data storage unit converts media signal to, disengages media signal by second coil after secondary signal treatment circuit and second modulation circuit are handled; Media signal accepted by first coil after the conversion of first signal processing circuit, first control circuit, amplifier and produce medium message from loud speaker.
8. according to the inductive charging device of claim 1 or 2, wherein first circuit bank further comprises amplifier, loud speaker, the first infrared ray transmission circuit; The second circuit group further comprises second control circuit, the second infrared ray transmission circuit; First control circuit transfers to the second infrared ray transmission circuit through the first infrared ray transmission circuit again with the media signal conversion of outside input, and by in the data storage unit of second control circuit with data signal loading medium player;
Second control circuit is stored in media player after media article in the data storage unit converts media signal to, transfer to the first infrared ray transmission circuit through the second infrared ray transmission circuit again, and produce medium message from loud speaker by the conversion of first control circuit, amplifier.
9. according to the inductive charging device of claim 1 or 2, wherein first circuit bank further comprises amplifier, loud speaker, first wireless transceiver circuit; The second circuit group further comprises second control circuit, second wireless transceiver circuit; First control circuit transfers to second wireless transceiver circuit through first wireless transceiver circuit again with the media signal conversion of outside input, and by in the data storage unit of second control circuit with data signal loading medium player;
Second control circuit is stored in media player after media article in the data storage unit converts media signal to, transfer to first wireless transceiver circuit through second wireless transceiver circuit again, and produce medium message from loud speaker by the conversion of first control circuit, amplifier.
CNB2005100854900A 2005-07-21 2005-07-21 Inductive charging device of medium player Expired - Fee Related CN100420120C (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CNB2005100854900A CN100420120C (en) 2005-07-21 2005-07-21 Inductive charging device of medium player

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CN100420120C true CN100420120C (en) 2008-09-17

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012083522A1 (en) * 2010-12-21 2012-06-28 海尔集团公司 Wireless power supply wall

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5929598A (en) * 1996-07-03 1999-07-27 Uniden Corporation Noncontact charging device, charger, cordless electric equipment, and noncontact charger
JP2003134681A (en) * 1997-09-16 2003-05-09 Matsushita Electric Ind Co Ltd Terminal apparatus and power feeding apparatus
CN2615750Y (en) * 2003-01-24 2004-05-12 何幸玲 Charging device for wireless mouse
CN1633010A (en) * 2004-12-09 2005-06-29 张定港 Non-contact power source sensing circuit and application thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5929598A (en) * 1996-07-03 1999-07-27 Uniden Corporation Noncontact charging device, charger, cordless electric equipment, and noncontact charger
JP2003134681A (en) * 1997-09-16 2003-05-09 Matsushita Electric Ind Co Ltd Terminal apparatus and power feeding apparatus
CN2615750Y (en) * 2003-01-24 2004-05-12 何幸玲 Charging device for wireless mouse
CN1633010A (en) * 2004-12-09 2005-06-29 张定港 Non-contact power source sensing circuit and application thereof

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