CN210234679U - Charging system - Google Patents

Abstract

The utility model provides a charging system, which consists of an electric energy sending primary end and an electric energy receiving secondary end, and is connected through a coupling transformer; the electric energy transmitting primary end comprises a three-phase alternating current power supply, a first rectifying and filtering circuit, a high-frequency inverter circuit, an electric energy output end control system and a primary side compensation circuit; the electric energy receiving secondary terminal comprises a secondary side compensation circuit, a second rectification filter circuit, a load and an electric energy receiving terminal control system. According to the charging system disclosed by the invention, the current input by the three-phase power supply is converted into the electromagnetic wave through the primary side of the coupling transformer and transmitted, then the electromagnetic wave transmitted by the primary side is received through the secondary side of the coupling transformer arranged in the automobile and converted into the electric energy, and finally the electric energy is transmitted to the load for use, so that the non-contact charging of the electric automobile is realized.

Description

Charging system

Technical Field

The utility model relates to a technical field that charges specifically is a charging system.

Background

With the social development, the pure electric vehicle has become a representative of the current new energy vehicles. Pure electric vehicles is with the electric energy transport to the motor of self storage, the motor turns into kinetic energy with the electric energy, power of traveling is provided for pure electric vehicles, after the electric energy that pure electric vehicles stored is used up, need charge to pure electric vehicles, and in prior art, the charge mode generally is contact charge mode, this charge mode is berthhed pure electric vehicles to wired electric pile department of charging, the mouth that charges of connecting pure electric vehicles through the charging wire, it carries the electric energy through the charging wire and stores to pure electric vehicles in, in order to reach the purpose of charging to pure electric vehicles.

However, because contact charging mode needs the manual work to pull out and inserts the charging wire interface, so the people have the danger of electrocuteeing when pulling out and inserting the charging wire to and forget after filling the electricity and pull out when the plug-in components that charge, move pure electric vehicles, can drag the connecting wire that charges, arouse the electric leakage easily, finally cause the incident. Therefore, the pure electric vehicle adopts a contact type charging mode to charge, and safety accidents can be caused due to the existence of the charging connecting wire.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a wireless charging system, which realizes the purpose of performing non-contact charging on an electric vehicle through a primary side and a secondary side in a coupling transformer.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

a charging system, comprising: the power transmission device comprises a power transmission primary end and a power receiving secondary end;

the electric energy transmitting primary end is connected with the electric energy receiving secondary end through a coupling transformer;

the electric energy transmitting primary end comprises a three-phase alternating current power supply, a first rectifying and filtering circuit, a high-frequency inverter circuit, an electric energy output end control system and a primary side compensation circuit;

the electric energy output end control system is respectively connected with the first rectifying and filtering circuit and the high-frequency inverter circuit, the input end of the first rectifying and filtering circuit is connected with the three-phase alternating-current power supply, the output end of the first rectifying and filtering circuit is connected with the input end of the high-frequency inverter circuit, the output end of the high-frequency inverter circuit is connected with one end of the primary side compensation circuit, and the other end of the primary side compensation circuit is connected with the input end of the coupling transformer;

the electric energy receiving secondary pole end comprises a secondary side compensation circuit, a second rectification filter circuit, a load and an electric energy receiving end control system;

the electric energy receiving end control system is respectively connected with the second rectifying and filtering circuit and the load, the input end of the secondary side compensation circuit is connected with the output end of the coupling transformer, the output end of the secondary side compensation circuit is connected with the input end of the second rectifying and filtering circuit, and the output end of the second rectifying and filtering circuit is connected with the load.

Preferably, the first rectifying and filtering circuit is a Pulse Width Modulation (PWM) rectifying circuit.

Preferably, the primary side compensation circuit is a resonant capacitor.

Preferably, the method further comprises the following steps: a mechanical transmission;

the mechanical transmission device is connected with the electric energy output end control system, and the input end of the coupling transformer is arranged on the mechanical transmission device.

Preferably, the device also comprises an alarm device connected with the electric energy output end control system.

Preferably, the system further comprises a monitoring module connected with the electric energy receiving end control system.

Preferably, the power output end control system includes: the system comprises a display terminal, a controller and a wireless communication module;

the controller is respectively connected with the display terminal, the wireless communication module, the first rectifying and filtering circuit and the high-frequency inverter circuit;

the wireless communication module is connected with the electric energy receiving end control system through a wireless signal.

Preferably, the first rectifying and filtering circuit and the wireless communication module in the primary side of the electric energy sending are arranged inside a charging pile, the three-phase alternating-current power supply, the high-frequency inverter circuit, the controller and the primary side compensation circuit are arranged in the ground end of the charging pile, the primary side of the coupling transformer is arranged in a support plate to form a ground end coil disc of the charging pile, and the ground end coil disc is arranged on a parking space.

Preferably, the secondary side of the coupling transformer is arranged in the support plate to form the vehicle-mounted end coil panel and is arranged on the vehicle base;

and the secondary side compensation circuit of the secondary electric energy receiving terminal, the second rectification filter circuit, the load and the electric energy receiving terminal control system are arranged in the vehicle.

Preferably, the method further comprises the following steps: a heat sink;

the heat dissipation device is arranged on one side of the charging pile and is respectively connected with the high-frequency inverter circuit and the electric energy output end control system.

Based on the above, the embodiment of the present invention provides a charging system, in which an electric energy sending primary end and an electric energy receiving secondary end of the system are connected through a coupling transformer; the electric energy transmitting primary end comprises a three-phase alternating current power supply, a first rectifying and filtering circuit, a high-frequency inverter circuit, an electric energy output end control system and a primary side compensation circuit; the electric energy output end control system is respectively connected with the first rectifying and filtering circuit and the high-frequency inverter circuit, the input end of the first rectifying and filtering circuit is connected with the three-phase alternating-current power supply, the output end of the first rectifying and filtering circuit is connected with the input end of the high-frequency inverter circuit, the output end of the high-frequency inverter circuit is connected with one end of the primary side compensation circuit, and the other end of the primary side compensation circuit is connected with the input end of the coupling transformer; the electric energy receiving secondary pole end comprises a secondary side compensation circuit, a second rectification filter circuit, a load and an electric energy receiving end control system; the electric energy receiving end control system is respectively connected with the second rectifying and filtering circuit and the load, the input end of the secondary side compensation circuit is connected with the output end of the coupling transformer, the output end of the secondary side compensation circuit is connected with the input end of the second rectifying and filtering circuit, and the output end of the second rectifying and filtering circuit is connected with the load. According to the charging system disclosed by the invention, the current input by the three-phase power supply is converted into the electromagnetic wave through the primary side of the coupling transformer and transmitted, the electromagnetic wave transmitted by the primary side is received through the secondary side of the coupling transformer arranged in the automobile and converted into the electric energy, and finally the electric energy is transmitted to the load for use, so that the non-contact charging of the electric automobile is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a charging system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another charging system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another charging system according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another charging system according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another charging system according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another charging system according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another charging system according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another charging system according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

An embodiment of the utility model provides a charging system, see fig. 1, above-mentioned system includes: a power transmitting primary terminal 100 and a power receiving secondary terminal 200.

The power transmitting primary terminal 100 and the power receiving secondary terminal 200 are connected through a coupling transformer 300.

It should be noted that the coupling transformer 300 is composed of a primary side and a secondary side, the primary side is also an input end of the coupling transformer, and the secondary side is an output end of the coupling transformer 300. The primary side is a coil with transmitting energy, namely an electromagnetic wave transmitting end, and the secondary side is a coil with receiving energy, namely an electromagnetic wave receiving end.

The energy emitted by the primary coil is electromagnetic waves, and the secondary coil receives the electromagnetic waves emitted by the primary coil, so that high-power transmission of electric energy in the coupling transformer 300 can be realized.

The electric energy transmitting primary side 100 comprises a three-phase alternating current power supply 101, a first rectifying and filtering circuit 102, a high-frequency inverter circuit 103, an electric energy output end control system 105 and a primary side compensation circuit 104.

The electric energy output end control system 105 is respectively connected with the first rectifying and filtering circuit 102 and the high-frequency inverter circuit 103, the input end of the first rectifying and filtering circuit 102 is connected with the three-phase alternating current power supply 101, the output end of the first rectifying and filtering circuit is connected with the input end of the high-frequency inverter circuit 103, the output end of the high-frequency inverter circuit 103 is connected with one end of the primary side compensation circuit 104, and the other end of the primary side compensation circuit 104 is connected with the input end of the coupling transformer 300.

It should be noted that the electric energy output end control system 105 converts the three-phase ac voltage input by the three-phase ac power supply 101 into a preset voltage by controlling the first rectifying and filtering circuit 102, converts the ac input by the three-phase ac power supply into a dc, and transmits the converted dc to the high-frequency inverter circuit 103, and the electric energy output end control system 105 controls the high-frequency inverter circuit 103 to transmit the received dc to the input end of the coupling transformer 300 through the primary side compensation circuit 104.

The primary compensation circuit 104 is connected in series with the primary coil of the coupling transformer 300 to provide voltage compensation for the primary coil and prevent insufficient voltage in the primary coil. The direct current is input to the high-frequency inverter circuit 103 and the primary side compensation circuit 104, so that sinusoidal current with the same frequency can be obtained, and the primary side coil converts the input sinusoidal current into high-frequency alternating electromagnetic waves for transmission.

Preferably, as shown in fig. 1, the power output end control system 105, as shown in fig. 2, includes: a display terminal 107, a first controller 108, and a first wireless communication module 109.

The first controller is respectively connected to the display terminal 107, the first wireless communication module 109, the first rectifying and filtering circuit 102, and the high-frequency inverter circuit 103.

The first wireless communication module 109 is connected with the electric energy receiving end control system 204 through a wireless signal.

It should be noted that the first wireless communication module 109 is connected to the first controller 108, and is configured to transmit a communication signal between the power receiving end control system 105 and the first controller.

The communication signal may be a charging request signal, a stop charging signal, or the like of the power reception secondary 200.

The display terminal 107 is configured to display charging information for the secondary power receiving terminal 200, where the charging information includes charging billing, charging process, and related user information.

Preferably, in the utility model discloses in, the controller is the singlechip, also can be other devices that have control function.

Preferably, the preset voltage has a voltage value of 300V to 750V.

Preferably, the first rectifying/smoothing circuit 102 is a Pulse Width Modulation (PWM) rectifying circuit.

It should be noted that the pulse width modulation is a very effective technique for controlling an analog circuit by using a digital output of a microprocessor, and is widely used in the fields of measurement, communication, power control, and the like.

The first rectifying and filtering circuit 102 may be other circuits with rectifying and filtering functions, and is not limited to a PWM rectifying circuit.

Preferably, the primary side compensation circuit 104 is a resonant capacitor, and may also be other devices having a voltage compensation function.

The power receiving secondary terminal 200 comprises a secondary side compensation circuit 201, a second rectifying and filtering circuit 202, a load 203 and a power receiving end control system 204.

The electric energy receiving end control system 204 is connected to the second rectifying and filtering circuit 202 and the load 203, respectively, an input end of the secondary compensation circuit 201 is connected to an output end of the coupling transformer 300, an output end of the secondary compensation circuit is connected to an input end of the second rectifying and filtering circuit 202, and an output end of the second rectifying and filtering circuit 202 is connected to the load 203.

The load 203 is a battery, which is an electrical energy storage device.

It should be noted that the natural frequency of the secondary side and the secondary side compensation circuit in the coupling transformer 300 is the same as the frequency of the alternating electromagnetic wave emitted from the primary side of the coupling transformer 300, so that the secondary side of the coupling transformer 300 can receive the electromagnetic wave emitted from the primary side of the coupling transformer 300 to the maximum extent, convert the received electromagnetic wave into an alternating current with the same frequency, and rectify the alternating current into a direct current and reduce the direct current into a voltage required by the battery for storage in the second rectification filter circuit 202.

Preferably, the power receiving end control system 204 includes: a second wireless communication module and a second controller.

When the second controller detects that the voltage in the storage battery reaches the preset voltage, the second controller sends a charging stop signal to the electric energy output end control system 105 through the second wireless communication module.

It should be noted that the wireless communication module may also send signals to start charging, suspend charging, and the like to the power output end control system 105.

The second rectifying and filtering circuit 202 may be a PWM rectifying circuit, or may be another circuit having rectifying and filtering functions, as in the first rectifying and filtering circuit 102, and is not limited to the PWM rectifying circuit.

The secondary side compensation circuit 201 is the same as the primary side compensation circuit 104, and may be a resonant capacitor or other devices having a voltage compensation function.

The electric energy receiving end control system 204 is the same as the electric energy output end control system 105, and may be a single chip microcomputer or other controllers with control functions.

The electric energy sending primary end and the electric energy receiving secondary end of the utility model are connected through the coupling transformer; the electric energy transmitting primary end comprises a three-phase alternating current power supply, a first rectifying and filtering circuit, a high-frequency inverter circuit, an electric energy output end control system and a primary side compensation circuit; the electric energy output end control system is respectively connected with the first rectifying and filtering circuit and the high-frequency inverter circuit, the input end of the first rectifying and filtering circuit is connected with the three-phase alternating-current power supply, the output end of the first rectifying and filtering circuit is connected with the input end of the high-frequency inverter circuit, the output end of the high-frequency inverter circuit is connected with one end of the primary side compensation circuit, and the other end of the primary side compensation circuit is connected with the input end of the coupling transformer; the electric energy receiving secondary pole end comprises a secondary side compensation circuit, a second rectification filter circuit, a load and an electric energy receiving end control system; the electric energy receiving end control system is respectively connected with the second rectifying and filtering circuit and the load, the input end of the secondary side compensation circuit is connected with the output end of the coupling transformer, the output end of the secondary side compensation circuit is connected with the input end of the second rectifying and filtering circuit, and the output end of the second rectifying and filtering circuit is connected with the load. According to the charging system disclosed by the invention, the current input by the three-phase power supply is converted into the electromagnetic wave through the primary side of the coupling transformer and transmitted, the electromagnetic wave transmitted by the primary side is received through the secondary side of the coupling transformer arranged in the automobile and converted into the electric energy, and finally the electric energy is transmitted to the load for use, so that the non-contact charging of the electric automobile is realized.

Preferably, combine the above-mentioned utility model embodiment to the charging system disclosed in fig. 1, as shown in fig. 3, the charging system further includes: the mechanical transmission 400.

The mechanical transmission device 400 is connected to the electric energy output end control system 105, and the input end of the coupling transformer 300 is arranged on the mechanical transmission device 400.

It should be noted that the electric energy output end control system 105 can control the mechanical transmission device 400 to move, so that the input end of the coupling transformer 300 is aligned with the output end of the coupling transformer 300, that is, the primary side of the coupling transformer 300 is aligned with the secondary side of the coupling transformer 300, so that the electromagnetic wave emitted by the primary side can be better received by the secondary side.

Preferably, combine the above-mentioned utility model embodiment to the charging system disclosed in fig. 1, as shown in fig. 4, the charging system further includes: and the alarm device 500 is connected with the electric energy output end control system 105.

It should be noted that, when potential safety hazards occur in the primary power transmitting terminal 100 and the secondary power receiving terminal 200, the power output terminal control system 105 controls the alarm device 500 to alarm in a preset manner, so as to achieve a warning effect and prevent safety accidents.

Preferably, when the load 203 of the secondary power receiving terminal 200 is a storage battery and the electric quantity of the storage battery is stored in a preset value, the power output terminal control system 105 controls the alarm device 500 to play a prompt tone according to a preset mode to prompt that the storage battery is charged.

Preferably, combine the above-mentioned utility model embodiment to the charging system disclosed in fig. 1, as shown in fig. 5, the charging system further includes: and the monitoring module 600 is connected with the electric energy receiving end control system.

The monitoring module 600 may be a touch display terminal, and the display terminal is installed on the charging pile and used for displaying the working states of the primary electric energy transmitting terminal 100 and the secondary electric energy receiving terminal 200.

Preferably, the monitoring module 600 is connected to the power receiving control system 204 in a wireless communication manner.

It should be noted that the monitoring module 600 and the electric energy receiving control system 204 can be connected in a wireless communication manner, and also can be connected in a wired communication manner, in the utility model, the communication connection manner between the monitoring module 600 and the electric energy receiving control system 204 is not limited.

Preferably, combine the above-mentioned utility model embodiment to the charging system disclosed in fig. 1, as shown in fig. 6, the charging system further includes: and the heat dissipation device 700 is connected with the high-frequency inverter circuit 103 and the electric energy output end control system 105.

It should be noted that the heat dissipation device 700 is mainly used for performing heat dissipation processing on the high-frequency inverter circuit 103 and the electric energy output end control system 105, so as to prevent safety accidents caused by overhigh temperatures of the high-frequency inverter circuit and the electric energy output end control system.

Preferably, the heat sink 700 is a water-cooling heat sink.

It should be noted that the heat dissipation device 700 may be an air cooling heat dissipation device, a water cooling heat dissipation device, or a heat dissipation device combining water cooling and air cooling, and the heat dissipation device 700 is not limited in the present invention.

Referring to fig. 7, for the utility model provides a structural schematic diagram of another kind of charging system, the charging system includes:

a power transmitting primary terminal 100 and a power receiving secondary terminal 200.

The power transmitting primary terminal 100 and the power receiving secondary terminal 200 are connected through a coupling transformer 300.

The electric energy transmitting primary end comprises a three-phase alternating current power supply 101, a first PWM (pulse width modulation) rectification circuit 102, a high-frequency inverter circuit 103, an MCU (microprogrammed control unit) controller 108, a first wireless communication module 106, a first resonant capacitor 104, a mechanical transmission device 105 and a display terminal 107.

The MCU controller 108 is connected to the first PWM rectifier circuit 102, the high frequency inverter circuit 103, the first wireless communication module 106, the display terminal 107 and the mechanical transmission device 105.

The input end of the first PWM rectification circuit 102 is connected to the three-phase ac power supply 101, the output end thereof is connected to the input end of the high-frequency inverter circuit 103, the first output end of the high-frequency inverter circuit 103 is connected to one end of the first resonant capacitor 104, and the other end of the first resonant capacitor 104 and the second output end of the high-frequency inverter circuit 103 are connected to the input end of the coupling transformer 300.

The secondary electric energy receiving terminal comprises a second resonant capacitor 201, a second PWM rectifying circuit 202, a storage battery 203, a second single chip microcomputer 204, a second wireless communication module 204 and a monitor 206.

The second single chip microcomputer 204 is connected to the second PWM rectifier circuit 202 and the second wireless communication module 204, one end of the second resonant capacitor 202 is connected to the first output terminal of the coupling transformer 300, the other end of the second resonant capacitor 202 is connected to the first input terminal of the second PWM rectifier circuit 202, the second input terminal of the PWM rectifier circuit 202 is connected to the second output terminal of the coupling transformer 300, and the output terminal of the second PWM rectifier circuit 202 is connected to the storage battery 203.

It should be noted that the monitor 206 is configured to monitor the power transmitting primary terminal 100 and the power receiving secondary terminal 200, and when the monitor 200 monitors that the power transmitting primary terminal 100 and/or the power receiving secondary terminal 200 has a fault, a charging stop signal is generated to the power transmitting primary terminal 100 through the second wireless communication module 204.

Based on the above disclosed device, the operation principle of the device will be explained below.

When an electric vehicle provided with an electric energy receiving secondary end sends a charging starting command to a first wireless communication module through a second wireless communication module, after receiving the charging command, a first single chip microcomputer controls a three-phase alternating current power supply to supply power to a first PWM (pulse width modulation) rectifying circuit and controls the first PWM rectifying circuit to rectify and reduce the current input by the three-phase alternating current power supply, and the rectified and reduced current is transmitted to a primary side of a coupling transformer through a first resonant capacitor, the primary side of the coupling transformer sends the received alternating current to a secondary side of the coupling transformer through electromagnetic waves, the coupling transformer converts the received electromagnetic waves into alternating current and transmits the alternating current to a second PWM rectifying circuit to rectify and reduce the voltage, and transmits the rectified current to a storage battery for storage, and when the second single chip microcomputer detects that the electric energy stored in the storage battery reaches a preset value, the second single chip microcomputer sends a charging stopping signal to the first wireless communication module through the second wireless communication, the second wireless communication module sends the received charging stop signal to the first single chip microcomputer, and the first single chip microcomputer controls the three-phase alternating current electric wire to stop supplying power to the first PWM rectifying circuit.

It should be noted that, the specific structure and function of the modules involved in the charging system disclosed in the present invention are the same as the modules in the charging system disclosed in the above-mentioned fig. 1 to fig. 6, and reference may be made to the corresponding parts in the charging system disclosed above, which are not described again here.

The utility model discloses an above-mentioned disclosed charging system turns into electromagnetic wave and transmission with the primary side of the electric current of three phase current input through among the coupling transformer, receives the electromagnetic wave of primary side transmission at the vice limit through installing in the coupling transformer in the car to turn into the electric energy, finally carry and use to the load, thereby realize carrying out non-contact to electric automobile and charge.

Based on the foregoing the utility model discloses a charging system, in concrete application, this charging system can adopt diversified mode to set up. Referring to fig. 8, a schematic diagram of a specific application of the charging system provided by the present invention is shown.

In conjunction with the charging systems shown in fig. 1-7 described above. The first rectifying and filtering circuit and the wireless communication module in the primary side of the electric energy sending are arranged inside a charging pile, the three-phase alternating-current power supply 101, the high-frequency inverter circuit 103, the controller and the primary side compensation circuit 104 are arranged in a ground end 10 of the charging pile, a primary side of the coupling transformer is arranged in a supporting plate to form a ground end coil disc 11 of the charging pile, and the ground end coil disc 11 is arranged on a parking space.

Specifically in fig. 8, the first rectifying and filtering circuit is a PWM rectifying circuit 102, the controller is an MCU controller 108, and the wireless communication module is a wireless communication unit 107.

The secondary side of the coupling transformer is arranged in the support plate to form the vehicle-mounted end coil panel 12, and the secondary side of the coupling transformer is arranged on the base of the vehicle 20.

The secondary side compensation circuit of the secondary extreme of the electric energy receiving end, the second rectification filter circuit, the load and the electric energy receiving end control system are arranged in the vehicle 20.

Specifically, in fig. 8, the second rectifying and filtering circuit is a rectifying circuit 202, the load is a battery pack 203, and the electric energy receiving end control system is an MCU controller 204.

The heat dissipation device 105 is arranged on one side of the charging pile and is connected with the high-frequency inverter circuit 103 and the electric energy output end control system respectively.

The heat dissipation device 105 is composed of a water pump and a radiator, a water path of the water pump is arranged between the high-frequency inverter circuit 103 and the electric energy output end control system, the high-frequency inverter circuit 103 and the electric energy output end control system can be cooled through a water cooling mode, the radiator cools water in the water pump, and therefore the high-frequency inverter circuit 103 and the electric energy output end control system are guaranteed to be in a normal temperature range.

It should be noted that the specific implementation process of the charging system shown in fig. 8 is the same as the implementation process and principle of the charging system disclosed in fig. 1 to fig. 5, and reference may be made to corresponding parts in the charging system disclosed above, which is not described herein again.

Further, some structures or components of the charging system shown in fig. 1 to 7 described above are not shown in fig. 8, but are still present in the specific implementation.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An electrical charging system, comprising: the power transmission device comprises a power transmission primary end and a power receiving secondary end;

the electric energy transmitting primary end is connected with the electric energy receiving secondary end through a coupling transformer;

the electric energy transmitting primary end comprises a three-phase alternating current power supply, a first rectifying and filtering circuit, a high-frequency inverter circuit, an electric energy output end control system and a primary side compensation circuit;

the electric energy output end control system is respectively connected with the first rectifying and filtering circuit and the high-frequency inverter circuit, the input end of the first rectifying and filtering circuit is connected with the three-phase alternating-current power supply, the output end of the first rectifying and filtering circuit is connected with the input end of the high-frequency inverter circuit, the output end of the high-frequency inverter circuit is connected with one end of the primary side compensation circuit, and the other end of the primary side compensation circuit is connected with the input end of the coupling transformer;

the electric energy receiving secondary pole end comprises a secondary side compensation circuit, a second rectification filter circuit, a load and an electric energy receiving end control system;

the electric energy receiving end control system is respectively connected with the second rectifying and filtering circuit and the load, the input end of the secondary side compensation circuit is connected with the output end of the coupling transformer, the output end of the secondary side compensation circuit is connected with the input end of the second rectifying and filtering circuit, and the output end of the second rectifying and filtering circuit is connected with the load.

2. The system of claim 1, wherein the first rectifying-filtering circuit is a Pulse Width Modulation (PWM) rectifying circuit.

3. The system of claim 1, wherein the primary side compensation circuit is a resonant capacitor.

4. The system of claim 1, further comprising: a mechanical transmission;

the mechanical transmission device is connected with the electric energy output end control system, and the input end of the coupling transformer is arranged on the mechanical transmission device.

5. The system of claim 1, further comprising an alarm device coupled to the power output control system.

6. The system of claim 1, further comprising a monitoring module coupled to the power sink control system.

7. The system of claim 1, wherein the power output control system comprises: the system comprises a display terminal, a controller and a wireless communication module;

the controller is respectively connected with the display terminal, the wireless communication module, the first rectifying and filtering circuit and the high-frequency inverter circuit;

the wireless communication module is connected with the electric energy receiving end control system through a wireless signal.

8. The system of claim 7, wherein the first rectifying and filtering circuit and the wireless communication module in the primary side of the power transmission are disposed inside a charging pile, the three-phase ac power supply, the high-frequency inverter circuit, the controller and the primary side compensation circuit are disposed in a ground side of the charging pile, a primary side of the coupling transformer is disposed in a supporting plate to form a ground side coil disc of the charging pile, and the ground side coil disc is disposed on a parking space.

9. The system of claim 8, wherein the secondary side of the coupling transformer is disposed within the support plate to form an on-board end coil panel disposed on the vehicle chassis;

and the secondary side compensation circuit of the secondary electric energy receiving terminal, the second rectification filter circuit, the load and the electric energy receiving terminal control system are arranged in the vehicle.

10. The system of claim 8, further comprising: a heat sink;

the heat dissipation device is arranged on one side of the charging pile and is respectively connected with the high-frequency inverter circuit and the electric energy output end control system.

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