CN206850503U - A kind of efficient wireless charging device of low-voltage and high-current for AGV - Google Patents
A kind of efficient wireless charging device of low-voltage and high-current for AGV Download PDFInfo
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- CN206850503U CN206850503U CN201720397678.7U CN201720397678U CN206850503U CN 206850503 U CN206850503 U CN 206850503U CN 201720397678 U CN201720397678 U CN 201720397678U CN 206850503 U CN206850503 U CN 206850503U
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Abstract
The utility model discloses a kind of efficient wireless charging device of the low-voltage and high-current for AGV, including transmitting terminal and receiving terminal, the transmitting terminal includes PFC module, inversion module, wireless coil transmitter module and transmitting side controller, the receiving terminal includes wireless coil receiving module, synchronous rectification module, receive side controller, the external single-phase alternating current of PFC module input, the PFC module output end is connected with inversion module input, the inversion module output end is connected with wireless coil transmitter module input, the wireless coil receiving module output end is connected with synchronous rectification module input, the synchronous rectification module output end charges for rechargeable battery.Power factor of the present utility model and electric energy efficiency of transmission are higher, and the switching loss of system and electromagnetic radiation are relatively low, and the whole efficiency of system is further increased using synchronous rectification, simplify the circuit structure of system.
Description
Technical field
It the utility model is related to wireless charging technical field, the specially a kind of efficient nothing of low-voltage and high-current for AGV
Micro USB electric installation.
Background technology
With the development of science and technology, the arrival in industrial 4.0 epoch, people are to the automaticity in industrial processes
It is required that more and more higher.Certainly, this was not only needed for the epoch and situation is compeled.At present, China is faced with aging population, labor
Power cost rises and the pressure of industrial structure upgrading, and some industries will also result in trick because of reasons such as technology, working environments in addition
Work difficulty phenomenon.Therefore increasing robot is applied on production line, and automatic Guided Vehicle (AGV) is exactly therein one
Kind, it can run according to predetermined orbital cycle, it is not necessary to human users.
AGV uses Vehicular accumulator cell group to provide operation energy, with increasing for run time, the battery on AGV for it
The electric energy of group storage is gradually reduced, in order to realize AGV circulation non-stop run, it is necessary to regularly given during circular flow
Batteries electric energy supplement.
Wireless energy transmission technology can solve problem present in many wired power supplies, as flexibility is poor, leads
The problems such as potential safety hazard that body contact portion, which easily wears, easily to produce spark, supply lines exposed to bring.And in numerous nothings
Electromagentic resonance scheme proposes in recent years again in heat input transmission technology scheme, it is considered to be a most potential practicality
Scheme.Had a wide range of applications due to many advantages, such as its is efficient, safe, controllable, radiationless multi-field.The nothing of the present invention
Micro USB electrical equipment is namely based on this principle, realizes AGV wireless charging function.Wireless charging is installed in the stopping station of AGV work
Emitter, wireless charging receiver is installed on AGV, the effect of battery electric quantity supplement is realized in stopping station, it is this
Method has not only been inherently eliminated the series of malpractice that direct insertion charge-carrying belt comes, and without human users, is truly realized
AGV full automation, and realize AGV non-stop run.
Existing low-voltage and high-current wireless charging scheme, is essentially all to be controlled using two-stage system, prime control
Inversion bridge processed, the direct current of certain voltage value is exported by rectification after contactless transformer coupled transfer electric energy, i.e.,：DC-
AC-DC is converted；Rear class realizes the multistage charge control of low-voltage, high-current using non-isolated reduction voltage circuit again, i.e.,：DC-DC becomes
Change.
Utility model content
(1) technical problem solved
In view of the shortcomings of the prior art, it is efficiently wireless to provide a kind of low-voltage and high-current for AGV for the utility model
Charging device, the efficiency of wireless charger is improved, reduce the conversion series of low-voltage and high-current wireless charging system, reduce
The complexity and system cost of main loop circuit, improve whole efficiency.
(2) technical scheme
To achieve the above object, the utility model provides following technical scheme：A kind of low-voltage and high-current for AGV is high
Wireless charging device, including transmitting terminal and receiving terminal are imitated, the transmitting terminal includes PFC module, inversion module, wireless coil transmitting
Module and transmitting side controller；The external single-phase alternating current of PFC module input, it is single-phase AC voltage to be transformed to
DC voltage；The inversion module input is connected with PFC module output end, and the inversion module output end is sent out with wireless coil
Penetrate module input to be connected, the inversion module is DC voltage to be converted to the ac square-wave voltage of high frequency；The reception
End includes wireless coil receiving module, synchronous rectification module, receives side controller；The wireless coil receiving module output end with
Synchronous rectification module input is connected, and the synchronous rectification module output end charges for rechargeable battery.
Preferably, the PFC module includes Single Phase PFC Rectifier and PFC control circuit, the PFC control circuit with
Single Phase PFC Rectifier is connected, to control Single Phase PFC Rectifier.
Preferably, described inversion module includes single-phase full bridge inverter circuit and drive circuit, the drive circuit to
Drive single-phase full bridge inverter circuit work.
Preferably, wireless coil transmitter module include by wireless transmission coil and the 3rd capacitor bank into series resonance time
Road.
Preferably, the wireless coil receiving module includes the first capacitor, the first wireless receiving coil, the second capacitor
With the double and resonant tank of the second wireless receiving coil composition.
(3) beneficial effect
The utility model provides a kind of efficient wireless charging device of the low-voltage and high-current for AGV, and possessing following has
Beneficial effect：
Power factor of the present utility model and electric energy efficiency of transmission are higher, and the switching loss of system and electromagnetic radiation are relatively low,
The whole efficiency of system is further increased using synchronous rectification, simplifies the circuit structure of system.
Brief description of the drawings
Fig. 1 is the block diagram of the utility model；
Fig. 2 is that the utility model electric energy transmits topology diagram；
Fig. 3 is transmitting terminal oscillogram of the present utility model；
Fig. 4 is wiring schematic diagram of the present utility model；
Fig. 5 is position view of the present utility model.
In figure：L1, wireless transmission coil, L2, the first wireless receiving coil, L3, the second wireless receiving coil, Cp1, first
Capacitor, Cp2, the second capacitor, Cs, the 3rd capacitor.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
As shown in Figure 1-2, the utility model provides a kind of technical scheme：A kind of low-voltage and high-current for AGV is efficient
Wireless charging device, including transmitting terminal and receiving terminal, the transmitting terminal include PFC module, inversion module, wireless coil transmitting mould
Block and transmitting side controller；The external single-phase alternating current of PFC module input, it is single-phase AC voltage to be transformed to directly
Flow voltage；The inversion module input is connected with PFC module output end, and the inversion module output end is launched with wireless coil
Module input is connected, and the inversion module is DC voltage to be converted to the ac square-wave voltage of high frequency；The receiving terminal
Including wireless coil receiving module, synchronous rectification module, receive side controller；The wireless coil receiving module output end with it is same
Step rectification module input is connected, and the synchronous rectification module output end charges for rechargeable battery.The PFC module includes single-phase
PFC rectification circuits and PFC control circuit, the PFC control circuit are connected with Single Phase PFC Rectifier, to control Single-phase PFC
Rectification circuit.Described inversion module includes single-phase full bridge inverter circuit and drive circuit, and the drive circuit is driving list
Phase full bridge inverter works.Wireless coil transmitter module includes the string being made up of wireless transmission coil L1 and the 3rd capacitor Cs
Join resonant tank.The wireless coil receiving module includes the first capacitor Cp1, the first wireless receiving coil L2, the second electric capacity
The double and resonant tank of device Cp2 and the second wireless receiving coil L3 compositions.
Described transmitting side controller includes DSP control circuits, radio transceiver circuitry, sample circuit, accessory power supply electricity
Road, DSP control circuits are received the voltage and current signal at wireless receiving end by wireless transceiver, realize constant current, constant voltage etc.
Multistage charge control；Control system realizes that system works in quasi-resonance state and opened with soft using the method for adaptive frequency track
Off status, improve electric energy efficiency of transmission, the switching loss for reducing system and the electromagnetic radiation of system.
The PFC DC voltages exported are converted to high frequency square wave by described single-phase full bridge inverter circuit using IGBT switching tubes
Voltage, control its output current to lag behind square-wave voltage, system is worked in perceptual state, realize the advanced arm switch pipe of phase shift bridge
Sofe Switch --- zero current turning-on (ZCS), specific drive waveforms and voltage current waveform are as shown in Figure 3.
Described reception side controller includes single chip machine controlling circuit, radio transceiver circuitry, sample circuit, accessory power supply
Circuit, single-chip microcomputer mainly complete output voltage, output current signal the error protection work(such as collection and transmission, overvoltage, excessively stream
The detection, the control of synchronous rectification system etc. of energy.
Described reception end-coil L2, L3 uses centre tapped winding mode, and high-frequency rectification uses way of full-wave rectification,
And synchronous rectification is combined, the conduction loss of rectifying tube is reduced, improves system effectiveness.
By the efficient wireless charging device of the low-voltage and high-current for AGV of this invention specific design, as shown in figure 4, filling
Electric power supply power supply is inputted for single-phase AC220V, and DC voltage is provided for wireless charging emitter by PFC module control box,
Emitter is arranged on the stop position of AGV workspaces；Wireless charging receiver output directly connects battery, on AGV,
For charging distance as shown in figure 5, air gap maximum 25mm, lateral shift allow 20mm, vertical misalignment allows 10mm.This device can
Setting output voltage 12V-30V, can set output current 10A-60A, in charging distance 25mm system effectiveness reach 93% with
On, power factor 0.99.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of efficient wireless charging device of low-voltage and high-current for AGV, including transmitting terminal and receiving terminal, its feature exist
In：
The transmitting terminal includes PFC module, inversion module, wireless coil transmitter module and transmitting side controller；The PFC module
The external single-phase alternating current of input, it by single-phase AC voltage being transformed to DC voltage；
The inversion module input is connected with PFC module output end, the inversion module output end and wireless coil transmitting mould
Block input is connected, and the inversion module is DC voltage to be converted to the ac square-wave voltage of high frequency；
The receiving terminal includes wireless coil receiving module, synchronous rectification module, receives side controller, the PFC module input
Hold external single-phase alternating current；
The wireless coil receiving module output end is connected with synchronous rectification module input, the synchronous rectification module output end
Charged for rechargeable battery.
2. the efficient wireless charging device of a kind of low-voltage and high-current for AGV according to claim 1, its feature exist
In：The PFC module includes Single Phase PFC Rectifier and PFC control circuit, the PFC control circuit and Single-phase PFC rectified current
Road is connected, to control Single Phase PFC Rectifier.
3. the efficient wireless charging device of a kind of low-voltage and high-current for AGV according to claim 1, its feature exist
In：Described inversion module includes single-phase full bridge inverter circuit and drive circuit, and the drive circuit is driving single-phase full bridge
Inverter circuit works.
4. the efficient wireless charging device of a kind of low-voltage and high-current for AGV according to claim 1, its feature exist
In：Wireless coil transmitter module include by wireless transmission coil and the 3rd capacitor bank into series resonant tank.
5. the efficient wireless charging device of a kind of low-voltage and high-current for AGV according to claim 1, its feature exist
In：The wireless coil receiving module includes the first capacitor, the first wireless transmission coil, the second capacitor and the second wireless hair
The double and resonant tank of ray circle composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720397678.7U CN206850503U (en) | 2017-04-15 | 2017-04-15 | A kind of efficient wireless charging device of low-voltage and high-current for AGV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720397678.7U CN206850503U (en) | 2017-04-15 | 2017-04-15 | A kind of efficient wireless charging device of low-voltage and high-current for AGV |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739876A (en) * | 2018-07-20 | 2020-01-31 | 郑州宇通客车股份有限公司 | inverter control method and device |
| US11646671B1 (en) | 2021-10-12 | 2023-05-09 | Utah State University | Unfolder-based single-stage AC-AC conversion system |
-
2017
- 2017-04-15 CN CN201720397678.7U patent/CN206850503U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739876A (en) * | 2018-07-20 | 2020-01-31 | 郑州宇通客车股份有限公司 | inverter control method and device |
| CN110739876B (en) * | 2018-07-20 | 2020-10-02 | 郑州宇通客车股份有限公司 | Inverter control method and device |
| US11646671B1 (en) | 2021-10-12 | 2023-05-09 | Utah State University | Unfolder-based single-stage AC-AC conversion system |
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