CN106532975A - Wireless power transmission motor and motor driving method - Google Patents
Wireless power transmission motor and motor driving method Download PDFInfo
- Publication number
- CN106532975A CN106532975A CN201610993474.XA CN201610993474A CN106532975A CN 106532975 A CN106532975 A CN 106532975A CN 201610993474 A CN201610993474 A CN 201610993474A CN 106532975 A CN106532975 A CN 106532975A
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- Prior art keywords
- circuit
- electric energy
- power transmission
- wireless power
- transmission motor
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
Abstract
The invention provides a wireless power transmission motor, which comprises a power transmission unit for transmitting a radio wave to transmit power, a power receiving unit for wirelessly receiving the radio wave transmitted from the power transmission unit and a DC motor driven by the power receiving unit, wherein the power transmission unit comprises a signal generation circuit and a power transmission circuit which are electrically connected in sequence; the power transmission circuit comprises a half-bridge inverter circuit, a first capacitor and a transmitting coil which are electrically connection in series in sequence; the first capacitor and the transmitting coil form a first LC resonance circuit with a first oscillation frequency; the power receiving unit comprises a receiving coil, a second capacitor and a full-bridge rectifier circuit which are electrically connected in series in sequence and form a power receiving circuit; and the second capacitor and the receiving coil form a second LC resonance circuit with a second oscillation frequency. The invention further provides a motor driving method of the wireless power transmission motor.
Description
Technical field
The invention belongs to machine field, more particularly to a kind of wireless power transmission motor and driving method.
Background technology
Increasing portable kind equipment, household electrical appliance play a significant role in business and family, intelligent, portability
The development trend of the kind equipment is become.Adopted due to conventional motors and run wires to be powered, the winding displacement of its numerous and complicated is not
Only using inconvenience, more potential safety hazard is ruined esthetic sensibility and exists.
Therefore, it is necessary to provide a kind of wireless power transmission motor and motor that can transmit electric energy by wireless coupling drive
Dynamic method.
The content of the invention
It is an object of the invention to provide it is a kind of can by wireless coupling transmit electric energy wireless power transmission motor and
Driving method.
Technical scheme is as follows：A kind of wireless power transmission motor is included for launching radio wave transmissions electric energy
Electric energy transmitter unit, for described in wireless receiving electric energy transmitter unit transmitting radio wave electric energy receiving unit and by institute
State the direct current generator of electric energy receiving unit driving；The electric energy transmitter unit includes the signal generating loop being sequentially connected electrically and electricity
Energy launching circuit, the electric energy launching circuit include half-bridge inversion circuit, the first capacitor and the transmitting for being sequentially connected in series electrical connection
Coil, first capacitor and the transmitting coil constitute the LC resonance circuits with the first frequency of oscillation；The electricity
Energy receiving unit includes being sequentially connected in series receiving coil, the second capacitor and the full-bridge rectification for electrically connecting and constituting that electric energy receives loop
Circuit, second capacitor and the receiving coil constitute the 2nd LC resonance circuits with the second frequency of oscillation, and described the
First frequency of oscillation of one LC resonance circuits is identical with the second frequency of oscillation of second resonance circuit, and the receiving coil
Resonance coupling is arranged between the transmitting coil；The full bridge rectifier is electrically connected in series setting simultaneously with the direct current generator
Constitute motor driving loop.
Preferably, the signal generating loop includes being sequentially connected in series the signal generation for electrically connecting and constituting signal generating loop
Device, signal amplify change-over circuit, dead time circuit, photoelectric isolating circuit and half-bridge inversion circuit, the signal generating loop
Arranged by half-bridge inversion circuit electrical connection with the electric energy launching circuit.
Preferably, the electric energy transmitter unit also include for by alternating current be converted to galvanic first dc source and
Multiple second dc sources electrically connected with first dc source, the signal generator, the signal amplify conversion electricity
Road, the dead time circuit, the photoelectric isolating circuit and the half-bridge inversion circuit electrically connect one it is described second straight
Stream power supply.
Preferably, first dc source is that 220V alternating currents are converted to the galvanic AC/DC power modules of 24V,
Second dc source is that 24V direct currents are converted to the galvanic DC/DC power modules of 15V.
Preferably, the signal amplifies operational amplifier and the phase inverter that change-over circuit includes being sequentially connected electrically, the fortune
Calculate amplifier to electrically connect with the signal generator, the phase inverter is electrically connected with the dead time circuit.
Preferably, in the electric energy launching circuit of the electric energy transmitter unit, concatenation is provided with for adjusting radiating circuit electricity
The variable capacitance of stream size.
Preferably, it is in the motor driving loop, in parallel two in the full bridge rectifier and the direct current generator
Filter capacitor.
A kind of driving method of wireless power transmission motor comprises the steps：
A, square-wave signal is processed, and the square-wave signal after process is sent out with radio wave form by transmitting coil
Penetrate；
B, the radio wave that the transmitting coil transmitting is received by receiving coil, and the radio wave is converted into into drive
The direct current energy that dynamic motor is rotated.
Preferably, in step a, variable capacitance is arranged in series with the transmitting coil, and it is described variable by adjusting
The capacitance of electric capacity, adjusts the electric current of the transmitting coil, so as to the rotating speed of the real-time controlled motor.
The beneficial effects of the present invention is：In the wireless power transmission motor and driving method, using the electricity
First LC resonance circuits of energy transmitter unit produce the alternating voltage of setpoint frequency, receive with rear end so as to produce the magnetic field of change
There is resonance coupled transfer electric energy in coil, eventually pass the rotation of current rectifying and wave filtering circuit motor.
And, the tandem arrangement variable capacitance before transmitting coil, by adjusting capacitance, adjusts radiating circuit size of current,
The power of adjustment receiving terminal, so as to the rotating speed of real-time control motor..
Description of the drawings
Fig. 1 is the structured flowchart of wireless power transmission motor provided in an embodiment of the present invention；
Fig. 2 is the system operating diagram of wireless power transmission motor shown in Fig. 1；
Fig. 3 is the circuit diagram of electric energy receiving unit in wireless power transmission motor shown in Fig. 1；
Fig. 4 is the structural frames of the driving method based on the wireless power transmission motor provided in an embodiment of the present invention
Figure.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
The description of specific distinct unless the context otherwise, the element and component in the present invention, quantity both can be with single shape
Formula is present, it is also possible in the form of multiple, and the present invention is not defined to this.Although the step in the present invention is entered with label
Arrangement is gone, but is not used to limit the precedence of step, unless expressly stated the order of step or holding for certain step
Based on row needs other steps, the relative rank of otherwise step is adjustable.It is appreciated that used herein
Term "and/or" is related to and covers one of associated Listed Items or one or more of any and all possible group
Close.
Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the structure of wireless power transmission motor provided in an embodiment of the present invention
Block diagram；Fig. 2 is the system operating diagram of wireless power transmission motor shown in Fig. 1；Fig. 3 is the electricity of wireless power transmission shown in Fig. 1
The circuit diagram of electric energy receiving unit in machine.Wireless power transmission motor provided in an embodiment of the present invention 100 adopts radio
The general principle of magnet coupled resonant type in transmitting, carries out the conversion of electric energy and passes by medium of the inductance coil in resonant tank
It is defeated, and the magnetic field of change is produced by signal alternating voltage, induced electromotive force, rectified filtering are produced on receiving coil
Realization is powered to motor.
The wireless power transmission motor 100 include for launch radio wave transmissions electric energy electric energy transmitter unit 10,
Electric energy receiving unit 20 for the radio wave of the transmitting of electric energy transmitter unit described in wireless receiving 10 and received by the electric energy
The direct current generator 30 that unit 20 drives.Wherein, the electric energy transmitter unit 10 and 20 electromagnetic coupled of the electric energy receiving unit connect
Setting is connect, the electric energy receiving unit 20 electrically connects setting with the direct current generator 30.
The electric energy transmitter unit 10 includes the signal generating loop 11 being sequentially connected electrically and electric energy launching circuit 12, and
For alternating current is converted to galvanic first dc source (not shown) and many with what first dc source was electrically connected
Individual second dc source (not shown).Preferably, first dc source is that 220V alternating currents are converted to 24V is galvanic
AC/DC power modules, second dc source are that 24V direct currents are converted to the galvanic DC/DC power modules of 15V.
The signal generating loop 11 includes being sequentially connected in series the signal generator for electrically connecting and constituting signal generating loop
111st, signal amplifies change-over circuit 112, dead time circuit 113, photoelectric isolating circuit 114 and half-bridge inversion circuit 115.At this
In embodiment, the signal generator 111 be export square-wave signal MAX038 signal generators, the photoelectric isolating circuit
114 is the two-way high-speed photoelectric coupler of input and output homophase.
And, the signal amplifies operational amplifier 116 and the phase inverter 117 that change-over circuit 112 includes being sequentially connected electrically,
The operational amplifier 116 is electrically connected with the signal generator 111, the phase inverter 117 and the dead time circuit 113
Electrical connection.Selectively, the dead time circuit 113 can be the dead time circuit being made up of multiple NAND gates.
In order to realize the power supply to each electronic component in the signal generating loop 11, in the electric energy transmitter unit 10
Interior, the signal generator 111, the signal amplify change-over circuit 112, the dead time circuit 113, the Phototube Coupling
Circuit 114 and the half-bridge inversion circuit 115 electrically connect second dc source.
The electric energy launching circuit 12 includes half-bridge inversion circuit 115,122 and of the first capacitor for being sequentially connected in series electrical connection
The LC that transmitting coil 123, first capacitor 122 and the transmitting coil 123 are constituted with the first frequency of oscillation is humorous
Shake circuit.Selectively, can also concatenate in the electric energy launching circuit 12 of the electric energy transmitter unit 10 and be provided with for adjusting
The variable capacitance 124 of section radiating circuit size of current.
In the electric energy transmitter unit 10, the signal generating loop 11 and the electric energy launching circuit 12 are by described
The electrical connection of half-bridge inversion circuit 115 is arranged.
The electric energy receiving unit 20 include being sequentially connected in series electrically connect and constitute electric energy receive the receiving coil 21 in loop, the
Two capacitors 22 and full bridge rectifier 23, second capacitor 22 and the receiving coil 23 are constituted with the second oscillation frequency
2nd LC resonance circuits of rate.Preferably, the full bridge rectifier 23 is by reverse recovery time extremely short SiC diode structures
Into.
Between the electric energy transmitter unit 10 and the electric energy receiving unit 20, the first of LC resonance circuits
Frequency of oscillation is identical with the second frequency of oscillation of second resonance circuit, and the receiving coil 123 and the transmitting coil
Between 21, resonance coupling is arranged.When LC resonance circuits and the 2nd LC resonance circuits work, the 2nd LC
Resonance circuit produces resonance current relative to LC resonance circuits, so as to realize receiving electromagnetic wave and be converted to electric energy
Effect.
Preferably, first frequency of oscillation and the second concussion frequency are 900KHz.Selectively, the reception
The radius of coil can be 9.4cm, and inductance value can be 24uH.
In the present embodiment, the direct current generator 30 is electrically connected in series with the full bridge rectifier 23 and arranges and constitute electricity
Machine driving circuit.Also, it is in the motor driving loop, in parallel in the full bridge rectifier 23 and the direct current generator 30
Two filter capacitors 31, for realizing simple filter action.
Fig. 4 is referred to, is the Motor drive side based on the wireless power transmission motor 100 provided in an embodiment of the present invention
The structured flowchart of method 200.The driving method 200 comprises the steps：
S1, square-wave signal is processed, and by the square-wave signal after process by transmitting coil with radio wave form
Transmitting；
S2, the radio wave that the transmitting coil transmitting is received by receiving coil, and the radio wave is converted into
The direct current energy that motor is rotated.
And, in step S1, variable capacitance is arranged in series with the transmitting coil, and by adjust it is described can
Become the capacitance of electric capacity, adjust the electric current of the transmitting coil, so as to the rotating speed of the real-time controlled motor.
In the wireless power transmission motor 100 provided compared to prior art, the present invention and driving method 200, profit
The alternating voltage of setpoint frequency is produced with LC resonance circuits of the electric energy transmitter unit 10, so as to produce the magnetic field of change
There is resonance coupled transfer electric energy with rear end receiving coil, eventually pass the rotation of current rectifying and wave filtering circuit motor.
And, the tandem arrangement variable capacitance before transmitting coil, by adjusting capacitance, adjusts radiating circuit size of current,
The power of adjustment receiving terminal, so as to the rotating speed of real-time control motor.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as and limit involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (9)
1. a kind of wireless power transmission motor, it is characterised in that include launching for the electric energy for launching radio wave transmissions electric energy
Unit, received for the electric energy receiving unit of the radio wave of electric energy transmitter unit transmitting described in wireless receiving and by the electric energy
The direct current generator that unit drives；
The electric energy transmitter unit includes the signal generating loop being sequentially connected electrically and electric energy launching circuit, and the electric energy is transmitted back to
Road includes half-bridge inversion circuit, the first capacitor and the transmitting coil for being sequentially connected in series electrical connection, first capacitor and described
Transmitting coil constitutes the LC resonance circuits with the first frequency of oscillation；
The electric energy receiving unit includes being sequentially connected in series receiving coil, the second capacitor for electrically connecting and constituting electric energy reception loop
And full bridge rectifier, second capacitor and the receiving coil composition electricity of the 2nd LC resonance with the second frequency of oscillation
Road, the first frequency of oscillation of LC resonance circuits are identical with the second frequency of oscillation of second resonance circuit, and institute
State resonance coupling between receiving coil and the transmitting coil to arrange；
The full bridge rectifier is electrically connected in series with the direct current generator and arranges and constitute motor driving loop.
2. wireless power transmission motor according to claim 1, it is characterised in that：The signal generating loop is included successively
Be electrically connected in series and constitute the signal generator of signal generating loop, signal amplify change-over circuit, dead time circuit, photoelectricity every
From circuit and half-bridge inversion circuit, the signal generating loop and the electric energy launching circuit are by half-bridge inversion circuit electricity
Connect setting.
3. wireless power transmission motor according to claim 2, it is characterised in that：The electric energy transmitter unit also includes using
In multiple second direct currents that alternating current is converted to galvanic first dc source and is electrically connected with first dc source
Power supply, the signal generator, the signal amplify change-over circuit, the dead time circuit, the photoelectric isolating circuit and
The half-bridge inversion circuit electrically connects second dc source.
4. wireless power transmission motor according to claim 3, it is characterised in that：First dc source is by 220V
Alternating current is converted to the galvanic AC/DC power modules of 24V, and second dc source is that 24V direct currents are converted to 15V is straight
The DC/DC power modules of stream electricity.
5. wireless power transmission motor according to claim 2, it is characterised in that：The signal amplifies change-over circuit to be included
The operational amplifier being sequentially connected electrically and phase inverter, the operational amplifier are electrically connected with the signal generator, described anti-phase
Device is electrically connected with the dead time circuit.
6. wireless power transmission motor according to claim 1, it is characterised in that：In the electric energy of the electric energy transmitter unit
In launching circuit, concatenation is provided with for adjusting the variable capacitance of radiating circuit size of current.
7. wireless power transmission motor according to claim 1, it is characterised in that：In the motor driving loop,
The full bridge rectifier and the direct current generator two filter capacitors of parallel connection.
8. a kind of driving method of wireless power transmission motor according to claim 1, it is characterised in that include as
Lower step：
A, square-wave signal is processed, and the square-wave signal after process is launched with radio wave form by transmitting coil；
B, the radio wave that the transmitting coil transmitting is received by receiving coil, and the radio wave is converted into into driving electricity
The direct current energy that machine is rotated.
9. the driving method of wireless power transmission motor according to claim 8, it is characterised in that in step a,
Variable capacitance is arranged in series with the transmitting coil, and by adjusting the capacitance of the variable capacitance, adjusts described sending out
The electric current of ray circle, so as to the rotating speed of the real-time controlled motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610993474.XA CN106532975A (en) | 2016-11-10 | 2016-11-10 | Wireless power transmission motor and motor driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610993474.XA CN106532975A (en) | 2016-11-10 | 2016-11-10 | Wireless power transmission motor and motor driving method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106532975A true CN106532975A (en) | 2017-03-22 |
Family
ID=58350822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610993474.XA Pending CN106532975A (en) | 2016-11-10 | 2016-11-10 | Wireless power transmission motor and motor driving method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106532975A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112152330A (en) * | 2020-09-30 | 2020-12-29 | 西南交通大学 | IPT system based on current doubling rectification & half-bridge inversion and efficiency improving method thereof |
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|---|---|---|---|---|
| CN102475444A (en) * | 2010-11-26 | 2012-05-30 | 张如彬 | Wireless power supply turntable |
| CN203009322U (en) * | 2012-11-22 | 2013-06-19 | 中国矿业大学 | Wireless power desk fan |
| CN104300695A (en) * | 2013-09-29 | 2015-01-21 | 郭和友 | Wireless motor |
| CN105762943A (en) * | 2015-01-05 | 2016-07-13 | 波音公司 | Wireless Power System For Electric Motors |
| CN106105016A (en) * | 2014-03-06 | 2016-11-09 | 波音公司 | The motor of wireless power |
-
2016
- 2016-11-10 CN CN201610993474.XA patent/CN106532975A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102475444A (en) * | 2010-11-26 | 2012-05-30 | 张如彬 | Wireless power supply turntable |
| CN203009322U (en) * | 2012-11-22 | 2013-06-19 | 中国矿业大学 | Wireless power desk fan |
| CN104300695A (en) * | 2013-09-29 | 2015-01-21 | 郭和友 | Wireless motor |
| CN106105016A (en) * | 2014-03-06 | 2016-11-09 | 波音公司 | The motor of wireless power |
| CN105762943A (en) * | 2015-01-05 | 2016-07-13 | 波音公司 | Wireless Power System For Electric Motors |
Non-Patent Citations (1)
| Title |
|---|
| 陈玉喜: "逆变式变极性TIG焊电源的研究", 《中国优秀硕士学位论文全文数据库电子期刊工程科技I辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112152330A (en) * | 2020-09-30 | 2020-12-29 | 西南交通大学 | IPT system based on current doubling rectification & half-bridge inversion and efficiency improving method thereof |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |
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| RJ01 | Rejection of invention patent application after publication |