CN207416595U - A kind of electric tractor wireless charging device - Google Patents
A kind of electric tractor wireless charging device Download PDFInfo
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- CN207416595U CN207416595U CN201721551204.XU CN201721551204U CN207416595U CN 207416595 U CN207416595 U CN 207416595U CN 201721551204 U CN201721551204 U CN 201721551204U CN 207416595 U CN207416595 U CN 207416595U
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- electric tractor
- wireless charging
- radio energy
- charging device
- electric
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Abstract
The utility model is related to a kind of electric tractor wireless charging device, including master controller, DC power supplier, filter capacitor, inversion drive module, inverter bridge, transmitting terminal resonant tank, receiving terminal resonant tank, rectifier bridge, LC filter circuits and electric tractor power battery pack；Transmitting terminal resonance circuit is composed in series by radio energy transmitting coil and resonance compensating electric capacity；Receiving terminal resonance circuit is composed in series by radio energy receiving coil and resonance compensating electric capacity；The utility model can carry out wireless charging to electric tractor power battery pack, not only conveniently, safely, fast, more realize that the recharging process of unmanned electric tractor is laid a good foundation.
Description
Technical field
The utility model is related to wireless charging fields, and in particular to one kind is directed to electric tractor wireless charging device.
Background technology
Energy shortage and environmental pollution have become an important factor for restricting human social, and use is environmentally protective
The energy by be the future of agriculture Administration ＆ Mechanical Development new trend, electric tractor will be obtained wide as a kind of novel green agricultural machinery
General promotion and application.
At present, wired charging is mainly used for the charging modes of electric tractor power battery pack, but wired charging
It can so that charging operations are cumbersome, and charging plug is easily in contact bad and electrical leakage problems in swapping process, production
Raw electric spark, especially in high-power charging process is carried out, can bring great security risk.Come for electric tractor
It says, operating environment is more severe, and especially ground is mostly uneven, therefore radio energy receiving coil cannot be as common electricity
Electrical automobile is equally mounted on electric tractor chassis.
The content of the invention
To solve the above-mentioned problems, the utility model provides a kind of electric tractor wireless charging device；This is electronic to drag
The device of machine drawing wireless charging, radio energy transmitting coil is embedded into wall, before radio energy receiving coil is more mounted on vehicle body
Side, based on resonance coupling principle, energy is coupled to radio energy receiving coil by radio energy transmitting coil, to electric tractor
Power battery pack carries out wireless charging.
A kind of electric tractor wireless charging device drives including master controller, DC power supplier, filter capacitor, inversion
Dynamic model block, inverter bridge, transmitting terminal resonant tank, receiving terminal resonant tank, rectifier bridge, LC filter circuits and electric tractor power
Battery pack；
The master controller is made of embedded processing unit and CAN communication module, and embedded processing unit is led to by CAN
It interrogates module to communicate with DC power supplier, DC power supplier output power is adjusted according to power module communications protocol；Pass through letter
Number line is connected with inversion drive module, adjusts embedded processing unit output pwm signal frequency, so as to pass through inversion drive module
To adjust inverter circuit output ac frequency.
The DC power supplier, for 380V three-phase alternating currents to be converted into direct current electricity output, DC power supplier leads to
CAN bus is crossed to be communicated with master controller.
The filter capacitor will be input to inverter bridge after direct current filtering process.
The inversion drive module, the pwm signal for master controller to be generated convert IGBT drive signals, control IGBT
Turn-on and turn-off.
The inverter bridge uses the voltage source inverter circuit that IGBT is formed, and direct current after filtering is converted to high-frequency ac
Electricity, and from inverter bridge output terminal by power cord transmitting terminal resonant tank input terminal with being connected.
The transmitting terminal resonance circuit is composed in series by radio energy transmitting coil and resonance compensating electric capacity；The radio
Energy transmitting coil is embedded into wall, for generating high-frequency resonant magnetic field.
The receiving terminal resonance circuit is composed in series by radio energy receiving coil and resonance compensating electric capacity；The radio
Energy receiving coil is fixed on headstock position in front of electric tractor, and and central alignment parallel with radio energy transmitting coil,
Resonance, base are generated when the resonant frequency of radio energy receiving coil is identical with the fixed resonant frequency of radio energy transmitting coil
In resonance coupling principle, energy is coupled to radio energy receiving coil by radio energy transmitting coil, and generates alternating current；Institute
It states receiving terminal resonance circuit output alternating current and is connected to rectifier bridge.
AC conversion is pulsating direct current using the full bridge rectifier being constituted by a diode, rectifier bridge by the rectifier bridge
Electricity, pulsating direct current are electrically connected to LC filter circuits and are handled.
The LC filter circuits are made of inductance and capacitance, by pulsating direct current electric current filtering process into the direct current of no ripple
Electric current is transferred to electric tractor power battery pack and charges.
The electric tractor power battery pack storage DC current works for electric tractor.
Further：
The embedded processing unit is made of STM32F407ZET6 minimum systems.
The CAN communication module carries CAN controller and CAN transceiver TJA1050 by STM32F407ZET6 chips
Composition.
The DC power supplier is Ying Kerui EVR700-20000C.
The inversion drive module is CONCEPT IGBT driving boards.
The IGBT is CM100DY-12H modules.
The LC filter circuits are made of smd series inductances and PHILIPS Q Serial capacitances.
The filter capacitor and resonance compensating electric capacity are the metallized film high pressure resonance electricity of model 0.1UF 3000VAC
Hold.
The utility model is beneficial in that compared to the prior art：
1st, wireless charging can be carried out to electric tractor power battery pack, not only conveniently, safely, fast, more realized
The recharging process of unmanned electric tractor is laid a good foundation.
2nd, radio energy receiving coil is mounted on vehicle front, and radio energy transmitting coil is embedded into wall, avoid because
The severe ground operating environment of electric tractor damages the structure of wireless charging device.
Description of the drawings
Fig. 1 is a kind of electric tractor wireless charging device topological diagram.
In figure：1st, DC power supplier, 2, filter capacitor 3, inverter bridge, 4, resonant capacitance, 5, radio energy transmitting coil,
6th, radio energy receiving coil, 7, rectifier bridge, 8, LC filter circuits, 9, electric tractor power battery pack.
Specific embodiment
Embodiment 1：With reference to Fig. 1.A kind of electric tractor wireless charging device, including master controller, DC power supplier,
Filter capacitor, inversion drive module, inverter bridge, transmitting terminal resonant tank, receiving terminal resonant tank, rectifier bridge and electric tractor
Power battery pack；
The master controller is made of embedded processing unit and CAN communication module；The embedded processing unit by
STM32F407ZET6 minimum systems form, and the CAN communication module carries CAN controller by STM32F407ZET6 chips
And CAN transceiver TJA1050 compositions；Embedded processing unit is communicated by CAN communication module and DC power supplier, according to electricity
Source module communications protocol adjusts DC power supplier output power；It is connected by signal wire with inversion drive module, adjusts insertion
Formula processing unit output pwm signal frequency, so as to export ac frequency by inversion drive module to adjust inverter circuit.
The DC power supplier selects Ying Kerui EVR700-20000C, for 380V three-phase alternating currents to be converted into directly
Galvanic electricity exports, and the DC power supplier is communicated by CAN bus and master controller.
The filter capacitor will be input to inverter bridge after direct current filtering process.
The inversion drive module is selected CONCEPT IGBT driving boards, is connected by signal wire with master controller, uses
IGBT drive signals are converted in the pwm signal for generating master controller, control the turn-on and turn-off of IGBT.
The inverter bridge uses the voltage source inverter circuit that IGBT is formed, and the IGBT selects CM100DY-12H modules, will
Direct current is converted to high-frequency alternating current, and the output terminal of the inverter bridge is connected with transmitting terminal resonant tank input terminal by power cord
It connects.
The transmitting terminal resonance circuit is composed in series by radio energy transmitting coil and resonance compensating electric capacity；The radio
Energy transmitting coil is embedded into wall, for generating high-frequency resonant magnetic field.
The receiving terminal resonance circuit is composed in series by radio energy receiving coil and resonance compensating electric capacity, the radio
Energy receiving coil is fixed on headstock position in front of electric tractor；The radio energy receiving coil and radio energy transmitting coil
Parallel and central alignment, when the resonant frequency of radio energy receiving coil and the fixed resonant frequency of radio energy transmitting coil
Resonance is generated when identical, based on resonance coupling principle, energy is coupled to radio energy receiving coil by radio energy transmitting coil,
And alternating current is generated, the radio energy transmitting coil and radio energy receiving coil are by litz wire coiling.
The receiving terminal resonance circuit output alternating current is connected to rectifier bridge, and the rectifier bridge is used by diode
40cpq100PBF composition full bridge rectifier, the rectifier bridge by AC conversion be Rectified alternating current, the pulsating direct current
Electricity is after the processing of LC filter circuits, for charging to dynamic tractor dynamic power battery pack.
The LC filter circuits are made of smd series inductances and PHILIPS Q Serial capacitances, and pulsating direct current electric current is filtered
The DC current without ripple formed after processing.
The filter capacitor and resonance compensating electric capacity select the metallized film high pressure of model 0.1UF 3000VAC humorous
Shake capacitance.
Claims (9)
1. a kind of electric tractor wireless charging device, it is characterised in that including master controller, DC power supplier, filtered electrical
Appearance, inversion drive module, inverter bridge, transmitting terminal resonant tank, receiving terminal resonant tank, rectifier bridge, LC filter circuits and electronic
Tractor dynamic power battery pack；
The master controller includes embedded processing unit and CAN communication module；The embedded processing unit passes through CAN communication
Module is communicated with DC power supplier, and DC power supplier output power is adjusted according to power module communications protocol；And pass through letter
Number line is connected with inversion drive module, is adjusted embedded processing unit output pwm signal frequency, is adjusted by inversion drive module
Save inverter circuit output ac frequency；
The DC power supplier, for 380V three-phase alternating currents to be converted into direct current electricity output, DC power supplier passes through CAN
Bus is communicated with master controller；
The filter capacitor will be input to inverter bridge after direct current filtering process；
The inversion drive module, the pwm signal for master controller to be generated convert IGBT drive signals, control leading for IGBT
Logical and shut-off；
The inverter bridge uses the voltage source inverter circuit that IGBT is formed, and direct current after filtering is converted to high-frequency alternating current, and
From inverter bridge output terminal by power cord transmitting terminal resonant tank input terminal with being connected；
The transmitting terminal resonance circuit is composed in series by radio energy transmitting coil and resonance compensating electric capacity；The radio energy hair
Ray circle is embedded into wall, for generating high-frequency resonant magnetic field；
The receiving terminal resonance circuit includes radio energy receiving coil and resonance compensating electric capacity is connected；The radio energy receives
Coil is fixed on headstock in front of electric tractor, and is arranged in parallel with radio energy transmitting coil central alignment；Work as radio energy
The resonant frequency of receiving coil generates resonance when identical with the fixed resonant frequency of radio energy transmitting coil, is coupled based on resonance
Principle, energy is coupled to radio energy receiving coil by radio energy transmitting coil, and generates alternating current；The receiving terminal is humorous
Circuit output of shaking alternating current is connected to rectifier bridge；
The LC filter circuits include inductance and capacitance；LC filter circuits are by pulsating direct current electric current filtering process into no ripple
DC current is transferred to electric tractor power battery pack and charges；
The electric tractor power battery pack storage DC current provides power to electric tractor.
2. a kind of electric tractor wireless charging device as described in claim 1, it is characterised in that the rectifier bridge use by
AC conversion is Rectified alternating current by the full bridge rectifier of diode composition, rectifier bridge, and pulsating direct current is electrically connected to LC filters
Wave circuit is handled.
A kind of 3. electric tractor wireless charging device as described in claim 1, it is characterised in that the embedded processing list
Member is made of STM32F407ZET6 minimum systems.
4. a kind of electric tractor wireless charging device as described in claim 1, it is characterised in that the CAN communication module by
STM32F407ZET6 chips carry CAN controller and CAN transceiver TJA1050 compositions.
A kind of 5. electric tractor wireless charging device as described in claim 1, it is characterised in that the DC power supplier
For Ying Kerui EVR700-20000C.
A kind of 6. electric tractor wireless charging device as described in claim 1, it is characterised in that the inversion drive module
For CONCEPT IGBT driving boards.
7. a kind of electric tractor wireless charging device as described in claim 1, it is characterised in that the IGBT is
CM100DY-12H modules.
8. a kind of electric tractor wireless charging device as described in claim 1, it is characterised in that the LC filter circuits by
Smd series inductances and PHILIPS Q Serial capacitances composition.
9. a kind of electric tractor wireless charging device as described in claim 1, it is characterised in that the filter capacitor is harmonious
Compensating electric capacity of shaking is the metallized film high pressure resonant capacitance of model 0.1UF 3000VAC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551204.XU CN207416595U (en) | 2017-11-18 | 2017-11-18 | A kind of electric tractor wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551204.XU CN207416595U (en) | 2017-11-18 | 2017-11-18 | A kind of electric tractor wireless charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207416595U true CN207416595U (en) | 2018-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201721551204.XU Active CN207416595U (en) | 2017-11-18 | 2017-11-18 | A kind of electric tractor wireless charging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878237A (en) * | 2017-11-18 | 2018-04-06 | 山东农业大学 | A kind of electric tractor wireless charging device |
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2017
- 2017-11-18 CN CN201721551204.XU patent/CN207416595U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878237A (en) * | 2017-11-18 | 2018-04-06 | 山东农业大学 | A kind of electric tractor wireless charging device |
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