CN106945565A - Wireless charging device in running car - Google Patents

Abstract

The invention relates to a wireless charging device for a running car. The energy receiving device in the electric car is connected to the storage battery through an energy conversion device; an energy transmitting device is provided on the highway lane, and the energy transmitting device is connected to an overhead catenary; When the energy transmitting device is on the highway lane, the energy transmitting device moves along the guide rail to directly below the energy receiving device under the action of the positioning device and the driving device, and moves forward at the same speed as the electric vehicle, and converts the electric energy through the coil In order to transmit the magnetic field energy to the energy receiving device on the electric vehicle, the energy conversion device converts the received magnetic field energy into electrical energy, and then converts it into stable direct current through the energy conversion device A and transmits it to the battery on the vehicle for storage. The invention can charge the car while driving, breaks the shackles of traditional parking charging, and improves the mileage of the electric car; the invention adds a photovoltaic power generation system, which is beneficial to saving fossil energy and reducing environmental pollution.

Description

Wireless charging device while the car is running

technical field

The invention relates to a wireless charging device for an electric vehicle, in particular to a wireless charging device for charging an electric vehicle during driving and using photovoltaic power generation for energy supply, and belongs to the technical field of wireless charging for electric vehicles.

Background technique

As the current environmental problems become more and more serious, people pay more and more attention to the exhaust emission of automobiles as an important pollution source. Therefore, the development of new energy vehicles has attracted more and more attention from all over the world. The emergence of electric vehicles can not only solve the problem of exhaust emissions, but also save fossil energy when solar photovoltaic power generation is added. However, with the development of electric vehicles, more and more limiting factors have emerged at the same time. Due to the limited capacity of current on-board batteries, electric vehicles have a shorter driving range. When the electricity stored in the electric vehicle is used up, it must be charged at a designated location. Therefore, it is necessary to build a large number of charging facilities, which cover a large area, and even at a fast charging station, the charging time is still very long. It is precisely because of the above-mentioned various reasons that the promotion of electric vehicles is limited.

The emergence of wireless charging technology provides the possibility to solve the above problems. Wireless charging is not restricted by factors such as wires and interfaces, and can be flexibly applied to various occasions. The invention provides a wireless charging system for an electric vehicle running on a highway, which can not only extend the mileage of the electric vehicle and reduce the area occupied by a charging station, but also incorporates a photovoltaic power generation system to achieve the purpose of saving fossil energy.

Invention content:

The object of the present invention is to provide a wireless charging device for a running car in order to solve the problems of short driving range and time-consuming charging of the existing electric car.

The technical solution of the present invention is: a wireless charging device for running a car, including an electric car, an energy receiving device, an energy conversion device A, a storage battery, an energy transmitting device, an overhead catenary, and a road. The receiving device, the energy converting device A, and the battery, the energy receiving device is connected to the battery through the energy converting device A; the lane of the road is provided with an energy emitting device that can move along the guide rail, and the energy emitting device is connected to the overhead catenary through a pantograph; The energy emitting device is equipped with a positioning device, a coil, and a driving device. When the electric vehicle travels on the roadway with the energy emitting device, the energy emitting device moves along the guide rail under the joint action of the positioning device and the driving device. Go directly under the energy receiving device, and move forward at the same speed as the electric car, and convert the electric energy into magnetic field energy through the coil and transmit it to the energy receiving device on the electric car, and the energy receiving device receives and converts the magnetic field energy into The electric energy is input to the vehicle-mounted energy conversion device A, and the energy conversion device A converts the received alternating current into a stable direct current and transmits it to the vehicle-mounted battery for storage.

Solar panels are laid on both sides of the road, and the solar panels are connected to the overhead catenary through the energy conversion device B, which is used to convert the electric energy output from the solar panels into the required alternating current and input it into the overhead catenary.

The overhead catenary is also connected to an external AC power supply, which is used to provide sufficient power to the overhead catenary when the solar radiation energy is insufficient such as in cloudy and rainy weather, so as to ensure the normal operation of the wireless charging device.

The beneficial effects of the present invention are:

The invention includes an energy transmitting system laid under the ground, a vehicle-mounted energy receiving system and a photovoltaic power generation system located on the side of the road. The electric energy in the energy emission system is jointly provided by the photovoltaic power generation system and the external AC. When the sunlight is sufficient, the external power supply is stopped to save energy. The on-board energy receiving system contains an energy conversion device, which can convert the received alternating current into direct current and store it in the battery to achieve the purpose of charging. The photovoltaic power generation system can provide electric energy to the energy transmission system and reduce the power supply from the external power grid. The invention can charge the car while driving, breaks the shackles of traditional parking charging, and improves the mileage of the electric car; the invention adds a photovoltaic power generation system, which is beneficial to saving fossil energy and reducing environmental pollution.

Description of drawings

Fig. 1 is a structural diagram of a wireless charging device in the running of a car of the present invention;

Figure 2 is a power supply diagram for the overhead catenary.

detailed description

The present invention will be further described below with reference to the accompanying drawings.

As shown in Figures 1 and 2, a wireless charging device for a running car includes an electric vehicle 1, an energy receiving device 2, an energy converting device A3, a storage battery 4, an energy transmitting device 5, a pantograph 6, a guide rail 7, an overhead Catenary 8, solar panel 9, energy conversion device B10, AC power supply 11, road 12, coil 13.

The electric vehicle 1 is equipped with an energy receiving device 2, an energy conversion device A3, and a battery 4, and the energy receiving device 2 is connected to the battery 4 through the energy conversion device A3; the lane of the road 12 is provided with an energy emission device that can move along the guide rail 7 5. The energy emitting device 5 is connected to the overhead catenary 8 through the pantograph 6; the energy emitting device 5 is equipped with a positioning device and a driving device.

When the electric vehicle 1 travels to the lane of the highway 12 with the energy emitting device 5, the energy emitting device 5 moves along the guide rail 7 to the positive side of the energy receiving device 2 under the joint action of the positioning device, the sensing device and the driving device. Below, and keep the same speed with the electric car 1 to move forward, and convert the electric energy into magnetic field energy and pass it to the energy receiving device 2 on the electric car 1, the energy receiving device 2 receives the magnetic field energy and converts it into electric energy again, and inputs it to the The on-vehicle energy conversion device A3 converts the received alternating current into a stable direct current and transmits it to the on-vehicle battery 4 for storage.

In the present invention, an energy conversion device A3 is arranged between the energy receiving device 2 of the electric vehicle and the vehicle-mounted storage battery 4, and the function is to convert the alternating current output by the energy receiving device into a stable direct current that can be absorbed by the vehicle-mounted storage battery;

The present invention requires guide rails 7 to be provided below the road surface, and the energy emitting device 5 is placed on the guide rails 7. The energy emitting device 5 includes a coil 13, a driving device, and a positioning device. The coil 13 converts electrical energy into a magnetic field and transmits it to the receiving end; the driving device provides power and has a speed regulation function, so that the energy transmitting device can move at a certain speed on the guide rail; there is an inductor in the positioning device, which can sense the electric vehicle 1 position, and under the joint action of the driving device, the energy emitting device moves to the bottom of the electric vehicle 1, and moves along the guide rail 7 at a consistent speed with the electric vehicle 1;

In the present invention, an overhead catenary 8 is provided directly below the guide rail 7, the electric energy in the energy emitting device 5 is provided by the overhead catenary 8, and the electric current in the overhead catenary is alternating current. A pantograph 6 is fixed on the lower surface of the energy emitting device 5 for receiving electric energy in the overhead catenary;

In the present invention, solar panels 9 are laid on both sides of the road 12 provided with the wireless charging device, and the photovoltaic effect is used to generate electricity and provide electric energy for the overhead catenary 8 . In the present invention, an energy conversion device B10 is provided between the photovoltaic power generation system and the overhead catenary 8 to convert the electric energy output by the photovoltaic power generation system into AC power that meets the requirements and input it into the overhead catenary 8 .

In addition to being powered by the photovoltaic power generation system, the overhead catenary 8 in the present invention is also equipped with an external AC power supply 11, which is used to provide sufficient power for the overhead catenary when the solar radiation energy is insufficient in rainy weather, etc., so as to ensure the normal operation of the wireless charging system. .

When the electric vehicle 1 travels on the highway 12 paved with a wireless charging system, and then travels to the designated lane, at this time, the energy transmitting device 5 moves along the guide rail 7 under the joint action of the positioning device and the driving device contained therein. directly below the energy receiving device 2, and keep moving forward at the same speed as the electric vehicle 1. The energy transmitting device 5 converts the received electric energy into magnetic field energy and transmits it to the energy receiving device 2, and the energy receiving device 2 converts the received magnetic field energy into electric energy for output. The energy converting device A3 converts the alternating current output by the energy receiving device 2 into a required direct current, and sends it to the storage battery for storage.

Referring to FIG. 2 , the electric energy output by the solar panel 9 is converted into the required alternating current through the energy conversion device B10 and input into the overhead catenary 8 . The other end of overhead catenary 8 is connected with external AC power supply 11, and the effect is that enough electric energy can still be guaranteed in overhead catenary when solar radiation energy is insufficient.

Claims (3)

1. the wireless charging device in a kind of running car, including electric automobile (1), energy acceptance device (2), energy converting means Put A (3), battery (4), energy emitting device (5), overhead contact line (8), highway (12), it is characterised in that：The electronic vapour Energy acceptance device (2), energy conversion device A (3), battery (4) are housed, energy acceptance device (2) passes through energy in car (1) Conversion equipment A (3) connection batteries (4)；The track of the highway (12) is provided with along the mobile energy of guide rail (7) to launch and filled Put (5), energy emitting device (5) connects overhead contact line (8) by pantograph (6)；The energy emitting device (5) is equipped with fixed Position device, coil (13) and drive device, when electric automobile (1) drives to the highway (12) with energy emitting device (5) Track on when, the energy emitting device (5) under the collective effect of positioner and drive device along guide rail (7) transport The underface of energy acceptance device (2) is moved, and keeps same speed to travel forward with electric automobile (1), and passes through line Circle (13) converts electrical energy into the energy acceptance device (2) that magnetic field energy is transmitted on electric automobile (1), and energy acceptance device (2) will Magnetic field energy receives and is again converted to electric energy, is input to vehicle-mounted end energy conversion device A (3), and energy conversion device A (3) will connect The alternating current received, which is converted into galvanic current, is defeated by vehicle-mounted battery (4) and stores.

2. the wireless charging device in running car according to claim 1, it is characterised in that：Highway (12) both sides Solar panel (9) is equipped with, the solar panel (9) passes through energy conversion device B (10) connection overhead contact lines (8), for the electric energy of output in solar panel (9) to be converted into satisfactory alternating current and overhead contact line is input to (8) in.

3. the wireless charging device in running car according to claim 2, it is characterised in that：The overhead contact line (8) external AC power supply (11) is also connected with, for being provided when the solar radiant energies such as rainy weather are not enough to overhead contact line (8) Enough electric energy, it is ensured that wireless charging device normal work.