CN208498260U - A kind of wireless charging system of electronic automobile-used super capacitor - Google Patents
A kind of wireless charging system of electronic automobile-used super capacitor Download PDFInfo
- Publication number
- CN208498260U CN208498260U CN201821046841.6U CN201821046841U CN208498260U CN 208498260 U CN208498260 U CN 208498260U CN 201821046841 U CN201821046841 U CN 201821046841U CN 208498260 U CN208498260 U CN 208498260U
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- voltage
- zvs
- super capacitor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of wireless charging systems of electronic automobile-used super capacitor, including, transmitting terminal power change module, ZVS self-excitation ejection values module, wireless receiving and transformation of electrical energy module and power storage module, the transmitting terminal power change module includes AC-DC rectification unit, DC-DC current transforming unit and microprocessor control unit, microprocessor control unit is able to detect the output voltage of AC-DC rectification unit, and controls DC-DC current transforming unit and export different voltage values for being supplied to ZVS self-excitation ejection values module.The system has the supply voltage of transmitting coil adjustable, and then can issue the electromagnetic field of varying strength, while step voltage is adjustable before the load of receiving end, in order to charge to different electrical storage devices.
Description
Technical field
The utility model relates to intelligent chargers, more particularly, to a kind of wireless charging system.
Background technique
Wireless charging technology is derived from wireless power transmission technology, can be divided into low-power wireless charging and high-power wireless charging
Two ways.
Low-power wireless charging is frequently with induction, such as the wireless charging mode of mobile phone.High-power wireless charging is normal
Electricity consumption is transmitted its energy to by power supply unit (charger) using resonant mode (most of electric car charging uses this mode)
Device, which charges to battery using the energy received, and is provided for its own functioning simultaneously.
Due to transmitting energy between charger and power device with magnetic field, do not run wires between the two, therefore charge
Device and the device of electricity consumption can accomplish that no conductive junction point is exposed.
However existing wireless charging system has the following deficiencies: 1, the voltage for acting on transmitting coil is non-adjustable, so that
The magnetic field strength issued from transmitting coil can not adjust, therefore the receiving device that receiving end can only be connected and fixed, can not be to not
Same electrical storage device charging.
Utility model content
The utility model in view of the above problems propose a kind of wireless charging system of electronic automobile-used super capacitor, this is
System has microprocessor control unit, can change the voltage being input in ZVS self-excitation ejection values module, adds to change
It is loaded in the voltage at transmitting coil both ends, is made it possible to adjusting the electromagnetic field intensity of transmitting coil sending for different electric power storages
Device charging.
The technological means that the utility model uses is as follows:
A kind of wireless charging system of electronic automobile-used super capacitor, including, transmitting terminal power change module, ZVS self-excitation are total
Vibration transmitting module, wireless receiving and transformation of electrical energy module and power storage module；The transmitting terminal power change module includes AC-DC
Rectification unit, DC-DC current transforming unit and microprocessor control unit, the AC-DC rectification unit and DC-DC current transforming unit point
It is not electrically connected with microprocessor control unit, alternating current is become DC voltage and is transferred to the DC- by the AC-DC rectification unit
DC current transforming unit, the microprocessor control unit are used to detect the DC voltage value and root of the AC-DC rectification unit output
The DC-DC current transforming unit is controlled according to its value change DC voltage into be used for the ZVS self-excitation ejection values module for power supply
Direct current supply voltage；Direct current supply voltage is converted to LC resonance by self-oscillation and handed over by the ZVS self-excitation ejection values module
Galvanic electricity simultaneously establishes magnetic field；The wireless receiving and transformation of electrical energy module receive the magnetic of the ZVS self-excitation ejection values module transmitting
And convert thereof into constant current constant voltage electric energy for charging for the power storage module；The power storage module stores electric energy and is used for
It powers to the load；
Further, the microprocessor control unit includes microprocessor, PWM driving unit, input unit and shows
Show unit, the ADC pin of the microprocessor, which is electrically connected by sampling resistor with the output end of the AC-DC rectification unit, to be used for
It detects the output voltage of the AC-DC rectification unit and is shown on the display unit, the microprocessor exports PWM
Signal is simultaneously connect by the PWM driving unit with the DC-DC current transforming unit, the input unit and microprocessor electricity
Connection is for adjusting the duty ratio of the pwm signal exported by the microprocessor；
Further, the power storage module include multiple concatenated super capacitors and for the multiple super capacitor into
The equalizer circuit that row is pressed；
Further, the ZVS self-excitation ejection values module includes ZVS resonance circuit and transmitting coil, the ZVS resonance
DC-DC current transforming unit described in circuit connection, the ZVS resonance circuit generates high frequency magnetic field, and is emitted by the transmitting coil
Electromagnetic wave；
Further, the AC-DC rectification unit uses the rectification circuit of LT4320 chip design；
Further, the wireless receiving and transformation of electrical energy module include receiving coil, without control rectification unit and constant pressure
Constant current unit, the receiving coil are used to receive the electromagnetic wave of the transmitting coil transmitting and convert thereof into exchange resonance electricity
Pressure, described to exchange resonance potential without control rectification unit and be converted into DC voltage and input to constant pressure and flow unit, the constant pressure
Constant current unit is for being transformed into constant current constant voltage for DC voltage and inputing to power storage module.
Compared with the prior art, the wireless charging system of the electronic automobile-used super capacitor of one kind described in the utility model has
Below the utility model has the advantages that 1, due to transmitting terminal power change module include AC-DC rectification unit, DC-DC current transforming unit and micro- place
Device control unit is managed, therefore microprocessor control unit can detect voltage and the change for being input to DC-DC module in real time
The output voltage of DC-DC current transforming unit is applied to ZVS self-excitation ejection values module for power supply voltage to change, to change hair
The output power of ray circle, so that receiving end can connect different electrical storage devices；2, power storage module uses multiple super capacitor strings
Connection so that the wireless charging system have many advantages, such as charging rate fastly, energy conservation and environmental protection, utilization rate of electrical is high；3, AC-DC rectification is single
Member is designed using LT4320 chip, so that the wireless charging system has the advantages that small in size, structure is simple, good heat dissipation effect；
4, since the voltage of transmitting terminal is adjustable, different receiving ends can be acted on, to realize to different power storage modules
Charging.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the wireless charging system of electronic automobile-used super capacitor disclosed by the utility model；
Fig. 2 is the circuit diagram of AC-DC rectification unit；
Fig. 3 is the driving circuit that microprocessor control unit is used to drive DC-DC current transforming unit；
Fig. 4 is the circuit diagram of DC-DC current transforming unit；
Fig. 5 is the circuit diagram of ZVS self-excitation ejection values module；
Fig. 6 is the circuit diagram of wireless receiving and transformation of electrical energy module；
Fig. 7 is the equalizer circuit figure of super capacitor.
In figure: 1, transmitting terminal power change module, 101, AC-DC rectification unit, 102, DC-DC current transforming unit, 103, micro-
Processor control unit, 2, ZVS self-excitation ejection values module, 201, ZVS resonance circuit, 202, transmitting coil, 3, wireless receiving
With transformation of electrical energy module, 301, receiving coil, 302, without control rectification unit, 303, constant pressure and flow unit, 4, power storage module.
Specific embodiment
It is as shown in Figure 1 the wireless charging system of electronic automobile-used super capacitor disclosed by the utility model, including, transmitting terminal
Power change module 1, ZVS self-excitation ejection values module 2, wireless receiving and transformation of electrical energy module 3 and power storage module 4.It is described
Transmitting terminal power change module 1 includes AC-DC rectification unit 101, DC-DC current transforming unit 102 and microprocessor control unit
103, in the present embodiment, the rectification circuit that AC-DC rectification unit 101 is designed using LT4320 chip, specifically, such as Fig. 2 institute
Showing, AC-DC rectification unit 101 includes that LT4320 chip and 4 low-loss N-channel MOS FET pipe Q1, Q2, Q3, Q4 are formed,
The IN1 pin of LT4320 chip connects alternating current with IN2 pin, and TG1, TG2, BG1 and BG2 of LT4320 chip are separately connected and N
The grid of channel mosfet connects, and alternating current becomes DC voltage after the rectification of AC-DC rectification unit and from LT4320 chip
OUTN pin and the output of OUTP pin.DC-DC current transforming unit 102 is input to by the DC voltage that AC-DC rectification unit 101 exports
Input terminal, the microprocessor control unit 103 connect with AC-DC rectification unit 101 and DC-DC current transforming unit 102 respectively,
Specifically, the microprocessor control unit 103 includes microprocessor, PWM driving unit, input unit and display unit,
The microprocessor is electrically connected with the output end of the AC-DC rectification unit 101 for detecting the AC-DC rectification unit 101
Output voltage, the microprocessor connect by PWM driving unit with the DC-DC current transforming unit 102.In the present embodiment
In, microprocessor uses STM32F103VBT6 chip, the ADC pin and AC-DC rectification unit 101 of STM32F103VBT6 chip
Output end DC voltage value of the sampling resistor connection to be exported for detecting the AC-DC rectification unit 101, and will measure
Voltage value be converted into digital quantity be input to processing chip in, microprocessor automatically adjusts input according to the voltage value detected
To the duty ratio of the pwm signal in DC-DC current transforming unit 102, to stablize the output voltage of DC-DC current transforming unit 102.Such as Fig. 4
BUCK circuit shown, that DC-DC current transforming unit 102 is formed using two MOSFET pipe MOS_1, MOS_2 and inductance L2, wherein two
The model that a MOSFET pipe MOS_1, MOS_2 are used is IRF540, due to IRF540 conducting voltage with higher, cannot use list
The pwm signal that piece machine generates directly drives, and therefore, the utility model increases PWM driving unit, as shown in figure 3, PWM drives
Unit is to be constituted using IR2104 chip, and the pwm signal that microprocessor generates is input to the input terminal of PWM driving unit, and PWM drives
The output end of moving cell is for driving the grid of two MOSFET pipes MOS_1, MOS_2 to adjust the defeated of DC-DC current transforming unit 102
Voltage out.Meanwhile microprocessor control unit 103 further includes input unit and display unit, input unit and display unit divide
Do not connect with microprocessor, by input unit can taking human as adjustment microprocessor output pwm signal duty ratio, in turn
The output voltage for changing DC-DC current transforming unit (since DC-DC current transforming unit is BUCK circuit, is accordingly used in controlling its work
The duty ratio of pwm signal is different, and the voltage of output is also different), display unit can show the output electricity of AC-DC rectification unit
The information such as pressure value and the duty ratio of the pwm signal for being inputted by input unit.It is inputted by input unit to change micro process
The duty ratio of the pwm signal of device output, can be such that the output voltage of DC-DC current transforming unit is on different gears, in order to
Transmitting coil launches outward the electromagnetic wave of different capacity, makes it possible to for charging to different electrical storage devices, and micro- place
The output voltage of reason device detection AC-DC rectification unit is simultaneously adjusted the duty ratio of pwm signal, and effect is when DC-DC becomes
When the output voltage of stream unit is in different gears, microcontroller can be finely adjusted with stabilization the duty ratio of pwm signal
The output voltage of DC-DC current transforming unit, so that output end obtains constant electromagnetic signal.
The output end of DC-DC current transforming unit 102 is connect with ZVS self-excitation ejection values module 2, DC-DC current transforming unit 102
Output voltage is as 2 direct current supply voltage of ZVS self-excitation ejection values module.
Direct current supply voltage is converted to LC resonance alternating current by self-oscillation by the ZVS self-excitation ejection values module 2
And establish magnetic field.Specifically, the circuit diagram of ZVS self-excitation ejection values module 2, the ZVS self-excitation ejection values are illustrated in figure 5
Module includes ZVS resonance circuit 201 and transmitting coil 202, and the ZVS resonance circuit 201 is connect with DC-DC current transforming unit, DC-
The output voltage of DC current transforming unit is input to ZVS self-excitation ejection values module, and the ZVS resonance circuit generates high frequency magnetic field, and
Emit electromagnetic wave by the transmitting coil 202.
Wireless receiving and transformation of electrical energy module 3 include receiving coil 301, without control rectification unit 302 and constant pressure and flow list
Member 303, the receiving coil 301 are used to receive the electromagnetic wave that the transmitting coil 202 emits and convert thereof into exchange resonance
Voltage, it is described to exchange resonance potential without control rectification unit 302 and be converted into DC voltage and input to constant pressure and flow unit 303,
The constant pressure and flow unit 303 is for being transformed into constant current constant voltage for DC voltage and inputing to power storage module 4.
Specifically, it is illustrated in figure 6 the circuit diagram of wireless receiving Yu transformation of electrical energy module 3, receiving coil receives transmitting
The electromagnetic wave and resonance of coil transmissions generate alternating voltage, since alternating current voltage frequency is very high in coil, the utility model
Middle diode D1, D3 using SK1010 model is built into using two diodes without control rectification single 302, to receiving coil
The alternating voltage of generation carries out rectification and forms DC voltage.
Ripple by the DC voltage after rectifying without control rectification unit 302 is larger, in order to preferable power quality
Not damage load, no 302 output end of control rectification unit connects constant pressure and flow unit 303, in the present embodiment, constant pressure and flow list
Member 303 uses TPS54360 chip, and TPS54360 is a efficient DC-DC power conversion chip, defeated with excellent input
Characteristic out.Pass through constant pressure and flow unit without the DC voltage that control rectification unit 302 exports and forms constant voltage constant current power and for being
Power storage module charging, the power storage module store electric energy and for powering to the load.
In the present embodiment, as shown in fig. 7, power storage module 4 includes multiple concatenated super capacitors and is used for described more
The quantity of the equalizer circuit that a super capacitor is pressed, super capacitor is chosen according to actual needs, in the present embodiment,
The quantity of super capacitor is 3, respectively capacitor C1, C2 and C3, each super capacitor difference equalizer circuit all the way in parallel, at this
In embodiment, it is described by taking first group of equalizer circuit (equalizer circuit of the top in Fig. 7) as an example, as shown, described point
Volt circuit includes a comparator U1A, resistance R1, R2, R3, R4, R5, voltage-stabiliser tube D1 and triode Q1, resistance R2 and R3 string
The both ends of super capacitor C1 are connected in parallel on after connection, the connecting pin of resistance R2 and R3 are connect with the non-inverting input terminal of comparator U1A, resistance
R3 is connected in parallel on the both ends of super capacitor C1 after connecting with voltage-stabiliser tube D1, the cathode of voltage-stabiliser tube D1 connect and is connected to resistance R3
The output end of the reverse input end of comparator U1A, comparator U1A is connect by resistance R4 with the base stage of triode Q1, triode
The emitter of Q1 connect with the anode of voltage-stabiliser tube D1 and connects in one end of super capacitor, and the collector of triode Q1 passes through resistance
R1 is connected to the other end of super capacitor.
In actual design, need to choose the parameter of zener diode, general pressure stabilizing two according to the pressure voltage of super capacitor
Pole pipe pressure voltage will be near but below single super capacitor pressure voltage.(zener diode 3V pressure voltage, super capacitor in the design
Single 3.2V pressure voltage), work basic principle is following (by taking first group circuit as an example): the voltage on super capacitor C1 passes through
It after resistance R2, R5 partial pressure, send to operational amplifier noninverting input, when R5 both end voltage is lower than the voltage of zener diode D1
When, comparator U1A exports low level, and triode Q1 is not turned on, and the super capacitor both ends are not connected to therefore will not be to other at this time
Capacitor discharges with balanced energy.When super capacitor C1 voltage is got higher, and the both ends R5 partial pressure is higher than the pressure stabilizing value of voltage-stabiliser tube, comparator
U1A output end exports high level, and triode ON, super capacitor is discharged outward by resistance R1 at this time, realizes the energy between capacitor
Amount is balanced.It ensure that the stabilization of super capacitor both end voltage using equalizer circuit, so that super capacitor work is safer, ensure that
The job stability of wireless charging system.In the present embodiment, due to using 3 super capacitors, there are 3 groups of equal piezoelectricity
Road, the comparator in equalizer circuit can use individual comparator chip, it is preferable that using integrated comparator chip, such as
Shown in Fig. 7, in the present embodiment, comparator use chip LM324AD chip, 4 comparators of each LM324AD integrated chip,
Therefore 4 groups of super capacitors be can connect, simplified circuit can reduce using integrated chip.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of wireless charging system of electronic automobile-used super capacitor, it is characterised in that: including transmitting terminal power change module
(1), ZVS self-excitation ejection values module (2), wireless receiving and transformation of electrical energy module (3) and power storage module (4)；
The transmitting terminal power change module (1) includes AC-DC rectification unit (101), DC-DC current transforming unit (102) and micro-
Processor control unit (103), the AC-DC rectification unit (101) and DC-DC current transforming unit (102) respectively with microprocessor
Alternating current is become DC voltage and is transferred to the DC-DC by control unit (103) electrical connection, the AC-DC rectification unit (101)
Current transforming unit (102), the microprocessor control unit (103) are used to detect the straight of AC-DC rectification unit (101) output
It flows voltage value and is changed into DC voltage according to its value control DC-DC current transforming unit (102) and be used to be total to the ZVS self-excitation
The direct current supply voltage of vibration transmitting module (2) power supply；
Direct current supply voltage is converted to LC resonance alternating current simultaneously by self-oscillation by the ZVS self-excitation ejection values module (2)
Establish magnetic field；
The wireless receiving and transformation of electrical energy module (3) receive the magnetic field of ZVS self-excitation ejection values module (2) transmitting and will
It is converted into for the constant current constant voltage electric energy for the power storage module (4) charging；
The power storage module (4) stores electric energy and for powering to the load.
2. the wireless charging system of electronic automobile-used super capacitor according to claim 1, it is characterised in that: the micro process
Device control unit (103) includes microprocessor, PWM driving unit, input unit and display unit, the microprocessor
ADC pin is electrically connected by sampling resistor with the output end of the AC-DC rectification unit (101) whole for detecting the AC-DC
It flows the output voltage of unit (101) and is shown on the display unit, the microprocessor output pwm signal simultaneously passes through
The PWM driving unit is connect with the DC-DC current transforming unit (102), and the input unit is electrically connected with the microprocessor
For adjusting the duty ratio of the pwm signal exported by the microprocessor.
3. the wireless charging system of electronic automobile-used super capacitor according to claim 1 or 2, it is characterised in that: the storage
Electric module (4) includes multiple concatenated super capacitors and the equalizer circuit for being pressed the multiple super capacitor.
4. the wireless charging system of electronic automobile-used super capacitor according to claim 1, it is characterised in that: the ZVS is certainly
Swashing ejection values module (2) includes ZVS resonance circuit (201) and transmitting coil (202), ZVS resonance circuit (201) connection
The DC-DC current transforming unit (102), the ZVS resonance circuit (201) generates high frequency magnetic field, and passes through the transmitting coil
(202) emit electromagnetic wave.
5. the wireless charging system of electronic automobile-used super capacitor according to claim 1, it is characterised in that: the AC-DC
Rectification unit (101) uses the rectification circuit of LT4320 chip design.
6. the wireless charging system of electronic automobile-used super capacitor according to claim 4, it is characterised in that: described wirelessly to connect
Receiving with transformation of electrical energy module (3) includes receiving coil (301), without control rectification unit (302) and constant pressure and flow unit (303),
The receiving coil (301) is used to receive the electromagnetic wave of the transmitting coil (202) transmitting and converts thereof into exchange resonance electricity
Pressure, it is described resonance potential be exchanged without control rectification unit (302) to be converted into DC voltage and input to constant pressure and flow unit
(303), the constant pressure and flow unit (303) is for being transformed into constant current constant voltage for DC voltage and inputing to power storage module (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821046841.6U CN208498260U (en) | 2018-07-03 | 2018-07-03 | A kind of wireless charging system of electronic automobile-used super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821046841.6U CN208498260U (en) | 2018-07-03 | 2018-07-03 | A kind of wireless charging system of electronic automobile-used super capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208498260U true CN208498260U (en) | 2019-02-15 |
Family
ID=65282434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821046841.6U Expired - Fee Related CN208498260U (en) | 2018-07-03 | 2018-07-03 | A kind of wireless charging system of electronic automobile-used super capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208498260U (en) |
-
2018
- 2018-07-03 CN CN201821046841.6U patent/CN208498260U/en not_active Expired - Fee Related
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