CN104113120A - Wireless charging system and electric vehicle - Google Patents
Wireless charging system and electric vehicle Download PDFInfo
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- CN104113120A CN104113120A CN201410373755.6A CN201410373755A CN104113120A CN 104113120 A CN104113120 A CN 104113120A CN 201410373755 A CN201410373755 A CN 201410373755A CN 104113120 A CN104113120 A CN 104113120A
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Abstract
The invention provides a wireless charging system. The wireless charging system comprises a ground device, a ground transmitting coil, a vehicle mounted receiving coil and a vehicle mounted device. The ground device is connected with a power grid and the ground transmitting device and used for modulating and outputting electric energy of the power grid to the ground transmitting coil; the ground transmitting coil is used for transmitting the modulated electric energy in a mode of magnetic field energy; the vehicle mounted receiving coil is connected with the vehicle mounted device and used for receiving the magnetic field energy transmitted by the ground transmitting coil and outputting the magnetic field energy to the vehicle mounted device; the vehicle mounted device is used for converting the magnetic field energy received by the vehicle mounted receiving coil into electric energy and storing the electric energy to drive the motor of an electric vehicle. Correspondingly, the invention also provides the electric vehicle utilizing the wireless charging system. The wireless charging system can achieve rapid charging of the electric vehicle and meanwhile avoid influence the service range of the electric vehicle.
Description
Technical field
The present invention relates to Vehicular charging technical field, be specifically related to a kind of wireless charging system, and the electric automobile that adopts described wireless charging system.
Background technology
Compare with traditional wired charging technique, wireless charging technology (also can be described as wireless energy transmission technology) is safe and reliable because having, arrangement convenience, can intelligent management etc. advantage, be especially applicable to being applied to charging electric vehicle field.But, for fear of injury vehicle mounted dynamic battery group, wireless charging technology can not be charged to vehicle mounted dynamic battery group with too fast speed, in order to improve charge efficiency, will be equipped with a large amount of wireless charging devices for electric automobile, correspondingly, also need to drop into a large amount of stopping for charging places, thereby should not apply.
In order to address the above problem, there is a kind of super capacitor power battery pack in prior art, and its energy-storage units as electric automobile has advantages of quickly-chargeable and can not be injured, thereby being widely used in electric automobile.But the energy storage of existing super capacitor power battery pack is limited, this has seriously affected the course continuation mileage of electric automobile.
Summary of the invention
Technical problem to be solved by this invention is for existing above-mentioned defect in prior art, and a kind of quick charge that both can realize electric automobile is provided, and can not affect again wireless charging system and the electric automobile of electric automobile course continuation mileage.
The technical scheme that solution the technology of the present invention problem adopts is:
Described wireless charging system comprises: ground installation, ground transmitting coil, vehicle-mounted receiving coil and car-mounted device,
Described ground installation is connected with ground transmitting coil with electrical network respectively, after the electric energy of electrical network is modulated, exports ground transmitting coil to;
Described ground transmitting coil is for launching the electric energy after modulation with the form of magnetic field energy;
Described vehicle-mounted receiving coil is connected with car-mounted device, for receiving the magnetic field energy of ground transmitting coil transmitting and exporting car-mounted device to;
Described car-mounted device changes into electric energy storage for the magnetic field energy that vehicle-mounted receiving coil is received, to drive the motor of electric automobile.
Preferably, described ground installation is modulated the electric energy in electrical network to be specially: the high-frequency ac electric energy that the industrial frequency AC electric energy in electrical network is converted to 10kHz～200kHz.
Preferably, described ground installation comprises the first rectifier, the first electric capacity, the first inverter and the second electric capacity,
The input of described the first rectifier is connected with electrical network, and output is connected with the two ends of the first electric capacity, for the industrial frequency AC electric energy of electrical network is converted to direct current energy and exports the first electric capacity to;
The two ends of described the first electric capacity are also connected with the input of the first inverter, for described direct current energy being carried out to filtering processing and exporting the first inverter to;
The output of described the first inverter is connected with one end of ground transmitting coil with one end of the second electric capacity respectively, for the direct current energy of processing through the first capacitor filtering is converted to the high-frequency ac electric energy of 10kHz～200kHz and exports ground transmitting coil to;
The other end of described the second electric capacity is also connected with the other end of ground transmitting coil.
Preferably, described car-mounted device also for the power storage that converts it in vehicle-mounted super capacitor power battery pack.
Preferably, described car-mounted device comprises the 3rd electric capacity, the second rectifier, the 4th electric capacity, super capacitor power battery pack and the second inverter,
The two ends of described the 3rd electric capacity are connected with the two ends of vehicle-mounted receiving coil respectively, and are connected with the input of the second rectifier;
The output of described the second rectifier is connected with the two ends of the 4th electric capacity, for the magnetic field energy that vehicle-mounted receiving coil is received, converts direct current energy to and exports the 4th electric capacity to;
The two ends of described the 4th electric capacity are also connected with the two ends of super capacitor power battery pack, for described direct current energy being carried out to filtering processing and exporting super capacitor power battery pack to;
The two ends of described super capacitor power battery pack are also connected with the input of the second inverter, for storing the direct current energy of processing through the 4th capacitor filtering and exporting the second inverter to;
The output of described the second inverter is connected with the motor of electric automobile, for converting the direct current energy of storing in super capacitor power battery pack to AC energy and exporting the motor of electric automobile to, to drive the motor of electric automobile.
Preferably, described car-mounted device also comprises voltage conversion unit,
The input of described voltage conversion unit is connected with the two ends of the 4th electric capacity, and output is connected with the two ends of super capacitor power battery pack, for the direct current energy of processing through the 4th capacitor filtering is carried out exporting super capacitor power battery pack to after voltage transitions.
Preferably, described car-mounted device also comprises boosting unit and the 6th electric capacity,
The input of described boosting unit is connected with the positive pole of super capacitor power battery pack, output is connected with the two ends of the 6th electric capacity, and the negative pole of super capacitor power battery pack is connected with the negative pole of the 6th electric capacity, described boosting unit is for boosting to the direct current energy of storing in super capacitor power battery pack the motor required voltage grade of electric automobile and export the 6th electric capacity to;
The two ends of described the 6th electric capacity are also connected with the input of the second inverter, for the direct current energy through boosting after processing is carried out to filtering processing and exports the second inverter to.
Preferably, described ground transmitting coil and vehicle-mounted receiving coil are all arranged in layer of soft magnetic material, and described ground transmitting coil and vehicle-mounted receiving coil are oppositely arranged.
The present invention also provides a kind of electric automobile, and described electric automobile adopts the wireless charging system as described in any one in claim 1～8.
Preferably, described electric automobile is Electric Transit automobile, and described vehicle-mounted receiving coil and car-mounted device are all arranged on Electric Transit automobile, and described ground installation and ground transmitting coil are all arranged on the platform place of each website of Electric Transit automobile approach.
Beneficial effect:
Wireless charging system of the present invention can be applicable to Electric Transit automobile, thereby by wireless charging technology and the effective combination of Electric Transit automobile with super capacitor power battery pack, due to bus, the platform place at each approach website will stop for passenger loading, get off, therefore ground installation and the ground transmitting coil of described wireless charging system can be set at each platform place, and vehicle-mounted receiving coil and the car-mounted device of described wireless charging system be set on Electric Transit automobile, utilize Electric Transit automobile stop waiting Passengen to get on the bus, the interior method of wireless quick charge that adopts during this period of time of getting off is promptly charged to the super capacitor power battery pack of Electric Transit automobile, as long as and the energy that charges meet Electric Transit running car to the next ground installation of described wireless charging system and the website of ground transmitting coil of being provided with, can guarantee that Electric Transit automobile normally works on whole piece circuit, therefore, utilize the rapidity of wireless charging technology, intelligent, filling property soon with super capacitor power battery pack, solved the limited problem that restricts the course continuation mileage of electric automobile of energy storage because of super capacitor power battery pack, that is to say, both realized the quick charge of the super capacitor power battery pack of Electric Transit automobile, can not affect again the course continuation mileage of Electric Transit automobile, bus platform can also be doubled as to stopping for charging place, therefore without the extra stopping for charging place of dropping into, very be beneficial to and apply.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of wireless charging system described in the embodiment of the present invention 1;
Fig. 2 is the schematic diagram that wireless charging system is applied to Electric Transit automobile described in the embodiment of the present invention 1;
Fig. 3 is the ground transmitting coil of wireless charging system described in the embodiment of the present invention 1 and the schematic diagram of vehicle-mounted receiving coil;
Wherein, Fig. 3 A is the structural representation of ground transmitting coil; Fig. 3 B is the structural representation of vehicle-mounted receiving coil; Fig. 3 C is the position relationship schematic diagram of ground transmitting coil and vehicle-mounted receiving coil;
Fig. 4 is the structural representation of wireless charging system described in the embodiment of the present invention 2.
In figure: 100-ground installation; 101-the first rectifier; 102-the first inverter; 103-the first control unit; 200-car-mounted device; 201-the second rectifier; 202-voltage conversion unit; 203-boosting unit; 204-the second inverter; 205-the second control unit; 206-electricity metering unit; C
1the-the first electric capacity; C
2the-the second electric capacity; C
3-tri-electric capacity; C
4-tetra-electric capacity; C
5-super capacitor power battery pack; C
6-six electric capacity; L
1-ground transmitting coil; L
2-vehicle-mounted receiving coil; L'-layer of soft magnetic material.
Embodiment
For making those skilled in the art understand better technical scheme of the present invention, below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment 1:
As shown in Figure 1, the present embodiment provides a kind of wireless charging system, and it comprises: ground installation 100, ground transmitting coil L
1, vehicle-mounted receiving coil L
2with car-mounted device 200.
Wherein, described ground installation 100 respectively with electrical network and ground transmitting coil L
1be connected, for after the electric energy of electrical network is modulated, export ground transmitting coil L to
1therefore described ground installation 100 also can be described as charging pile.
Preferably, described ground installation is modulated the electric energy in electrical network to be specially: the industrial frequency AC electric energy in electrical network is converted to the high-frequency ac electric energy of 10kHz～200kHz, the magnetic field that the high-frequency alternating current of this frequency range produces is at ground transmitting coil L
1with vehicle-mounted receiving coil L
2also transmitting energy expeditiously when distant, also makes the loss of the semiconductor components and devices in ground installation 100 and car-mounted device 200 less.
Described ground transmitting coil L
1for the electric energy after modulation is launched with the form of magnetic field energy.
Described vehicle-mounted receiving coil L
2be connected with car-mounted device 200, for receiving ground transmitting coil L
1the magnetic field energy of transmitting also exports car-mounted device 200 to.
Described car-mounted device 200 is for by vehicle-mounted receiving coil L
2the magnetic field energy receiving changes into electric energy storage, to drive the motor of electric automobile, therefore described car-mounted device 200 also can be described as vehicular high-power power electronic equipment.
Preferably, described car-mounted device also for the power storage that converts it in vehicle-mounted super capacitor power battery pack.
Described in the present embodiment, wireless charging system is preferably applied to Electric Transit automobile (as shown in Figure 2), can a set of ground installation 100 and ground transmitting coil L be set at the platform place of each website of Electric Transit automobile approach
1, and a set of vehicle-mounted receiving coil L is set on Electric Transit automobile
2with car-mounted device 200, and in described vehicle-mounted super capacitor power battery pack, the electric energy of storage at least needs to meet Electric Transit running car to the next one and is provided with vehicle-mounted receiving coil L
2with the platform place of the website of car-mounted device 200, thereby both realize the quick charge of Electric Transit automobile, and can not affect again Electric Transit automobile course continuation mileage.For the ease of the Electric Transit automobile quick charge that many are entered the station simultaneously, many cover ground installations 100 and ground transmitting coil L are preferably all set at the platform place of each website
1, and concrete tricks can be set in conjunction with actual conditions voluntarily by those skilled in the art.
Certainly, wireless charging system also can be applicable to the electric automobile of other types described in the present embodiment, in order not affect its course continuation mileage, can one or more sets ground installations 100 and ground transmitting coil L be set at each place, gas station
1, ground installation 100 and the ground transmitting coil L that also can arrange with the platform place of each website of Electric Transit shared motor
1.
Preferably, described ground transmitting coil L
1with vehicle-mounted receiving coil L
2both can be circular coil (as shown in Fig. 3 A and 3B), can be also square coil; Described ground transmitting coil L
1with vehicle-mounted receiving coil L
2all be arranged on layer of soft magnetic material L' upper, and described ground transmitting coil L
1with vehicle-mounted receiving coil L
2be oppositely arranged, also just make described ground transmitting coil L
1corresponding layer of soft magnetic material L' and vehicle-mounted receiving coil L
2the corresponding opposing setting of layer of soft magnetic material L' (as shown in Figure 3 C), this structure that coil is set in layer of soft magnetic material is the efficiency of raising radio transmission energy significantly, also optimize magnetic circuit simultaneously, reduced significantly coil electromagnetic radiation level to external world; Described ground transmitting coil L
1with vehicle-mounted receiving coil L
2all can adopt sub-thread or split conductor to make; The ground transmitting coil L that the shape of described layer of soft magnetic material L' is corresponding with it
1with vehicle-mounted receiving coil L
2shape identical, for example, described ground transmitting coil L
1be shaped as circle, the shape of its corresponding layer of soft magnetic material L' is also circular; Described ground transmitting coil L
1can tile on the ground or the flat subsurface that is embedded in, when it is flat while being embedded in subsurface, require to adopt insulating material to bury.
The present embodiment also provides a kind of electric automobile that adopts above-mentioned wireless charging system.
Preferably, described electric automobile is Electric Transit automobile, and described vehicle-mounted receiving coil and car-mounted device are all arranged on Electric Transit automobile, and described ground installation and ground transmitting coil are all arranged on the platform place of each website of Electric Transit automobile approach.
Embodiment 2:
As shown in Figure 4, the present embodiment provides a kind of wireless charging system, and it comprises: ground installation 100, ground transmitting coil L
1, vehicle-mounted receiving coil L
2with car-mounted device 200.
Particularly, described ground installation 100 comprises: the first rectifier 101, the first capacitor C
1, the first inverter 102, the second capacitor C
2with the first control unit 103.
The input of described the first rectifier 101 is connected with electrical network, output and the first capacitor C
1two ends be connected, for the industrial frequency AC electric energy of electrical network is converted to direct current energy and exports the first capacitor C to
1.Described the first rectifier 101 can adopt the three-phase/single-phase rectifier suitable with electrical network.
Described the first capacitor C
1two ends be also connected with the input of the first inverter 102, for described direct current energy being carried out to filtering processing and exporting the first inverter 102 to.
The output of described the first inverter 102 respectively with the second capacitor C
2one end and ground transmitting coil L
1one end be connected, for will be through the first capacitor C
1the direct current energy that filtering is processed converts the high-frequency ac electric energy of 10kHz～200kHz to and exports ground transmitting coil L to
1, described the second capacitor C
2the other end also with ground transmitting coil L
1the other end be connected.
Wherein, described the first inverter 102 comprises transistor T
1and with the diode D of its reverse parallel connection
1, transistor T
2and with the diode D of its reverse parallel connection
2, transistor T
3and with the diode D of its reverse parallel connection
3and transistor T
4and with the diode D of its reverse parallel connection
4, and transistor T
1collector electrode and transistor T
3collector electrode (i.e. the first inverter 102 input) all with the first capacitor C
1positive pole be connected, transistor T
2emitter and transistor T
4emitter (i.e. another input of the first inverter 102) all with the first capacitor C
1negative pole be connected, transistor T
1emitter and transistor T
2collector electrode (i.e. the first inverter 102 output) all with ground transmitting coil L
1one end be connected, transistor T
3emitter and transistor T
4collector electrode (i.e. another output of the first inverter 102) all with the second capacitor C
2one end be connected, ground transmitting coil L
1the other end and the second capacitor C
2the other end be connected.Certainly, described the first inverter 102 also can adopt existing other to have the circuit structure of invert function.
Described the first control unit 103 is for controlling each semiconductor components and devices conducting or shutoff of the first rectifier 101 and the first inverter 102, thereby the industrial frequency AC electric energy in electrical network converted to the high-frequency ac electric energy of 10kHz～200kHz.Described the first control unit 103 can adopt existing chip or the circuit module of controlling function that have.
Described ground transmitting coil L
1high-frequency ac electric energy for 10kHz～200kHz that ground installation 100 is modulated into is launched with the form of magnetic field energy.
Described vehicle-mounted receiving coil L
2be connected with car-mounted device 200, for receiving wirelessly ground transmitting coil L
1the magnetic field energy of transmitting also exports car-mounted device 200 to.
Described car-mounted device 200 comprises: the 3rd capacitor C
3, the second rectifier 201, the 4th capacitor C
4, voltage conversion unit 202, super capacitor power battery pack C
5, boosting unit 203, the 6th capacitor C
6, the second inverter 204 and the second control unit 205.Wherein, voltage conversion unit 202, boosting unit 203 and the 6th capacitor C
6be selectable unit (SU), those skilled in the art can increase and decrease voluntarily according to actual conditions.
Described the 3rd capacitor C
3two ends respectively with vehicle-mounted receiving coil L
2two ends be connected, and be connected with the input of the second rectifier 201.
The output of described the second rectifier 201 and the 4th capacitor C
4two ends be connected, for by vehicle-mounted receiving coil L
2the magnetic field energy receiving converts direct current energy to and exports the 4th capacitor C to
4.
Wherein, described the second rectifier 201 comprises diode D
13, diode D
14, diode D
15with diode D
16, and diode D
13positive pole and diode D
14negative pole (i.e. the second rectifier 201 input) all with the 3rd capacitor C
3one end be connected, diode D
15positive pole and diode D
16negative pole (i.e. another input of the second rectifier 201) all with the 3rd capacitor C
3the other end be connected, diode D
13negative pole and diode D
15negative pole (i.e. the second rectifier 201 output) all with the 4th capacitor C
4positive pole be connected, diode D
14positive pole and diode D
16positive pole (i.e. another output of the second rectifier 201) all with the 4th capacitor C
4negative pole be connected.Certainly, described the second rectifier 201 also can adopt existing other to have the circuit structure of rectification function.
Described the 4th capacitor C
4two ends be also connected with the input of voltage conversion unit 202, for described direct current energy being carried out to filtering processing and exporting voltage conversion unit 202 to.
The output of described voltage conversion unit 202 and super capacitor power battery pack C
5two ends be connected, for will be through the 4th capacitor C
4the direct current energy that filtering is processed carries out exporting super capacitor power battery pack C to after voltage transitions
5, particularly, the voltage transitions of this direct current energy is become to be applicable to super capacitor power battery pack C
5voltage and export super capacitor power battery pack C to
5.Due to super capacitor power battery pack C
5electric pressure generally lower, therefore described voltage conversion unit 202 can adopt existing voltage reduction module, this voltage reduction module can be both isolated form, can be also non-isolation type.
Preferably, described voltage conversion unit 202 adopts step-down isolated form DC/DC module.The control strategy of described step-down isolated form DC/DC module has the following function of efficiency optimization, its basic principle is: step-down isolated form DC/DC module is by dynamically adjusting its input current, make the input impedance (being the input impedance of step-down isolated form DC/DC module) of seeing into from the 4th capacitor C 4 sides can mate output impedance (the i.e. output impedance of the second rectifier 201 of seeing to the left from the 4th capacitor C 4, here " left side " refer to left in Fig. 4 to), to obtain maximum wireless energy transmission efficiency.Certainly, described voltage conversion unit 202 also can adopt existing other to have chip or the circuit module of voltage conversion function.
Described super capacitor power battery pack C
5positive pole be also connected with the input of boosting unit 203, super capacitor power battery pack C
5negative pole and the 6th capacitor C
6negative pole be connected, for storing through the direct current energy of voltage conversion unit 202 conversion process and exporting boosting unit 203 to.
The output of described boosting unit 203 and the 6th capacitor C
6two ends be connected, for by super capacitor power battery pack C
5the direct current energy of interior storage boosts to the motor required voltage grade of electric automobile and exports the 6th capacitor C to
6.
Preferably, described boosting unit 203 adopts two-way DC/DC module, and it comprises inductance L
3, transistor T
5and with the diode D of its reverse parallel connection
5and transistor T
6and with the diode D of its reverse parallel connection
6, and inductance L
3one end (being the input of boosting unit 203) and super capacitor power battery pack C
5positive pole be connected, inductance L
3the other end respectively with transistor T
5emitter and transistor T
6collector electrode be connected, transistor T
5collector electrode (being an output of boosting unit 203) and the 6th capacitor C
6positive pole be connected, and transistor T
6emitter (being another output of boosting unit 203) and the 6th capacitor C
6negative pole be connected.Certainly, described boosting unit 203 also can adopt existing other to have chip or the circuit module of boost function.
Described the 6th capacitor C
6two ends be also connected with the input of the second inverter 204, for the direct current energy after processing through boosting is carried out to filtering processing and exports the second inverter 204 to.
Described second output of inverter 204 and the motor of electric automobile are connected, for will be through the 6th capacitor C
6the direct current energy that filtering is processed converts AC energy to and exports the motor of electric automobile to, to drive the motor of electric automobile.
Wherein, described the second inverter 204 comprises transistor T
7and with the diode D of its reverse parallel connection
7, transistor T
8and with the diode D of its reverse parallel connection
8, transistor T
9and with the diode D of its reverse parallel connection
9, transistor T
10and with the diode D of its reverse parallel connection
10and transistor T
11and with the diode D of its reverse parallel connection
11, and transistor T
7collector electrode, transistor T
9collector electrode and transistor T
11collector electrode (i.e. the second inverter 204 input) all with the 6th capacitor C
6positive pole be connected, transistor T
7emitter, transistor T
9emitter and transistor T
11emitter (i.e. another input of the second inverter 204) all with the 6th capacitor C
6negative pole be connected, transistor T
7emitter and transistor T
8collector electrode, transistor T
9emitter and transistor T
10collector electrode and transistor T
11emitter and transistor T
12collector electrode (i.e. three of the second inverter 204 outputs) be connected with the three-phase of the motor of electric automobile respectively.Certainly, described the second inverter 204 also can adopt existing other to have the circuit structure of invert function.
Described the second control unit 205 is for controlling each semiconductor components and devices conducting or shutoff of voltage conversion unit 202, boosting unit 203 and the second inverter, thereby by vehicle-mounted receiving coil L
2the magnetic field energy receiving changes into electric energy to drive the motor of electric automobile.Described the second control unit 205 can adopt existing chip or the circuit module of controlling function that have.The first control unit 103 in described ground installation 100 and the second control unit 205 in car-mounted device 200 are respectively independently control unit, can be by the wireless information communication of carrying out between these two control units.
Described the first control unit 103 or the second control unit 205 also have electric quantity metering function, for electric energy used is quantized and is committed to wirelessly administration of power networks department, so that administration of power networks division management and charging.
Above-mentioned each transistor can adopt insulated gate bipolar transistor (IGBT, Insulated Gate Bipolar Transistor), any in thyristor (Thyristor), IEGT (IEGT, Injection Enhanced Gate Transistor).
It should be noted that, in practical work process, described ground installation 100 and ground transmitting coil L
1as radiating circuit, described vehicle-mounted receiving coil L
2as receiving circuit, all in resonance condition, the operating frequency of supposing described wireless charging system is f with car-mounted device 200, and radiating circuit need meet
described receiving circuit need meet
The present embodiment also provides a kind of electric automobile that adopts above-mentioned wireless charging system.
Other structures in the present embodiment and effect are all identical with embodiment 1, repeat no more here.
Be understandable that, above execution mode is only used to principle of the present invention is described and the illustrative embodiments that adopts, yet the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (10)
1. a wireless charging system, is characterized in that, comprising: ground installation, ground transmitting coil, vehicle-mounted receiving coil and car-mounted device,
Described ground installation is connected with ground transmitting coil with electrical network respectively, after the electric energy of electrical network is modulated, exports ground transmitting coil to;
Described ground transmitting coil is for launching the electric energy after modulation with the form of magnetic field energy;
Described vehicle-mounted receiving coil is connected with car-mounted device, for receiving the magnetic field energy of ground transmitting coil transmitting and exporting car-mounted device to;
Described car-mounted device changes into electric energy storage for the magnetic field energy that vehicle-mounted receiving coil is received, to drive the motor of electric automobile.
2. wireless charging system according to claim 1, is characterized in that, described ground installation is modulated the electric energy in electrical network to be specially: the high-frequency ac electric energy that the industrial frequency AC electric energy in electrical network is converted to 10kHz～200kHz.
3. wireless charging system according to claim 2, is characterized in that, described ground installation comprises the first rectifier, the first electric capacity, the first inverter and the second electric capacity,
The input of described the first rectifier is connected with electrical network, and output is connected with the two ends of the first electric capacity, for the industrial frequency AC electric energy of electrical network is converted to direct current energy and exports the first electric capacity to;
The two ends of described the first electric capacity are also connected with the input of the first inverter, for described direct current energy being carried out to filtering processing and exporting the first inverter to;
The output of described the first inverter is connected with one end of ground transmitting coil with one end of the second electric capacity respectively, for the direct current energy of processing through the first capacitor filtering is converted to the high-frequency ac electric energy of 10kHz～200kHz and exports ground transmitting coil to;
The other end of described the second electric capacity is also connected with the other end of ground transmitting coil.
4. wireless charging system according to claim 1, is characterized in that, described car-mounted device also for the power storage that converts it in vehicle-mounted super capacitor power battery pack.
5. wireless charging system according to claim 4, is characterized in that, described car-mounted device comprises the 3rd electric capacity, the second rectifier, the 4th electric capacity, super capacitor power battery pack and the second inverter,
The two ends of described the 3rd electric capacity are connected with the two ends of vehicle-mounted receiving coil respectively, and are connected with the input of the second rectifier;
The output of described the second rectifier is connected with the two ends of the 4th electric capacity, for the magnetic field energy that vehicle-mounted receiving coil is received, converts direct current energy to and exports the 4th electric capacity to;
The two ends of described the 4th electric capacity are also connected with the two ends of super capacitor power battery pack, for described direct current energy being carried out to filtering processing and exporting super capacitor power battery pack to;
The two ends of described super capacitor power battery pack are also connected with the input of the second inverter, for storing the direct current energy of processing through the 4th capacitor filtering and exporting the second inverter to;
The output of described the second inverter is connected with the motor of electric automobile, for converting the direct current energy of storing in super capacitor power battery pack to AC energy and exporting the motor of electric automobile to, to drive the motor of electric automobile.
6. wireless charging system according to claim 5, is characterized in that, described car-mounted device also comprises voltage conversion unit,
The input of described voltage conversion unit is connected with the two ends of the 4th electric capacity, and output is connected with the two ends of super capacitor power battery pack, for the direct current energy of processing through the 4th capacitor filtering is carried out exporting super capacitor power battery pack to after voltage transitions.
7. wireless charging system according to claim 5, is characterized in that, described car-mounted device also comprises boosting unit and the 6th electric capacity,
The input of described boosting unit is connected with the positive pole of super capacitor power battery pack, output is connected with the two ends of the 6th electric capacity, and the negative pole of super capacitor power battery pack is connected with the negative pole of the 6th electric capacity, described boosting unit is for boosting to the direct current energy of storing in super capacitor power battery pack the motor required voltage grade of electric automobile and export the 6th electric capacity to;
The two ends of described the 6th electric capacity are also connected with the input of the second inverter, for the direct current energy through boosting after processing is carried out to filtering processing and exports the second inverter to.
8. according to the wireless charging system described in any one in claim 1～7, it is characterized in that, described ground transmitting coil and vehicle-mounted receiving coil are all arranged in layer of soft magnetic material, and described ground transmitting coil and vehicle-mounted receiving coil are oppositely arranged.
9. an electric automobile, is characterized in that, described electric automobile adopts the wireless charging system as described in any one in claim 1～8.
10. electric automobile according to claim 9, it is characterized in that, described electric automobile is Electric Transit automobile, described vehicle-mounted receiving coil and car-mounted device are all arranged on Electric Transit automobile, and described ground installation and ground transmitting coil are all arranged on the platform place of each website of Electric Transit automobile approach.
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| CN201410373755.6A CN104113120A (en) | 2014-07-31 | 2014-07-31 | Wireless charging system and electric vehicle |
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| CN104362703A (en) * | 2014-11-25 | 2015-02-18 | 小米科技有限责任公司 | Wireless charging method and device |
| CN104467132A (en) * | 2014-12-22 | 2015-03-25 | 芜湖市汽车产业技术研究院有限公司 | Wireless charging system with billing function |
| CN104617685A (en) * | 2015-02-17 | 2015-05-13 | 湖南大学 | Contactless inductive power transmission control device and method thereof |
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| CN105109358B (en) * | 2015-09-22 | 2018-05-11 | 奇瑞汽车股份有限公司 | A kind of wireless charging system for electric automobile |
| CN105109358A (en) * | 2015-09-22 | 2015-12-02 | 奇瑞汽车股份有限公司 | Wireless charging system of electric automobile |
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| CN108909535A (en) * | 2018-05-22 | 2018-11-30 | 广西电网有限责任公司电力科学研究院 | A kind of wireless charging bus stop |
| CN110525240A (en) * | 2019-08-09 | 2019-12-03 | 华为技术有限公司 | Vehicle mounted dynamic battery, can charge and discharge energy-storage system and electric car |
| CN111923751A (en) * | 2020-07-22 | 2020-11-13 | 上海牟尼科技开发有限公司 | Remote wireless charging system for electric automobile |
| CN111923751B (en) * | 2020-07-22 | 2024-04-05 | 上海牟尼科技开发有限公司 | Remote wireless charging system for electric automobile |
| CN113644752A (en) * | 2021-07-30 | 2021-11-12 | 中车长江车辆有限公司 | Railway vehicle power supply system |
| CN114475292A (en) * | 2021-12-30 | 2022-05-13 | 福州大学 | Integrated structure of wireless charging system and vehicle-mounted charging system of electric automobile |
| CN114475292B (en) * | 2021-12-30 | 2024-03-08 | 福州大学 | Integrated structure of wireless charging system and vehicle-mounted charging system of electric automobile |
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