CHARGING DEVICE FOR ELECTRIC VEHICLE
First Claim
1. A charging device for an electric vehicle, the charging device comprising:
- a wireless power receiving device which receives high-frequency AC power by a magnetic field connection with a high-frequency alternating magnetic field;
a wired power receiving device which is connected to an external power source for low-frequency AC power;
a rectifier which rectifies AC power which is outputted from the wireless power receiving device and the wired power receiving device;
an electric power converter which is connected to a rear part of the rectifier; and
an power receiving device switching switch which switches electric power in such a way that electric power of the wireless power receiving device or electric power of the wired power receiving device is outputted to the rectifier;
in which a battery is charged by DC power which is outputted from the electric power converter, whereina high-frequency filter, which removes a high-frequency component included in electric power outputted from the rectifier, is provided between the rectifier and the electric power converter,the wired power receiving device includes a full-wave rectifier by which low-frequency AC power, which is inputted from the external power source, is rectified for a full wave, an inverter which converts pulsating electric power, which is outputted from the full-wave rectifier, to high-frequency AC power in a state where a pulsating component is maintained, and an insulated transformer which is connected to a rear part of the inverter, the high-frequency filter removes a high-frequency component which is related to a high-frequency component of the high-frequency AC power;
when electric power is received from the wireless power receiving device, DC power at a constant voltage is inputted to the electric power converter, and when electric power is received from the wired power receiving device, pulsating electric power, in which a voltage waveform of the low-frequency AC power is rectified for a full wave, is inputted to the electric power converter;
when electric power is received from the wireless power receiving device, the electric power converter performs a resistance conversion operation in which a voltage, which is inputted to the electric power converter, is increased or decreased, and outputs a constant voltage, and when electric power is received from the wired power receiving device, the electric power converter performs a power-factor improvement operation in which a power factor of electric power, which is inputted from the external power source, is improved, and outputs a constant voltage.
1 Assignment
0 Petitions
Accused Products
Abstract
A charging device for an electric vehicle includes a wireless power receiving device which receives high-frequency AC power in a non-contact state, a wired power receiving device connected to an external power source for low-frequency AC power, a rectifier which rectifies AC power, an electric power converter which is positioned at a rear part of the rectifier, and an power receiving device switching switch which switches electric power in such a way that any of electric power of both electric power receiving devices is outputted to the rectifier. A high-frequency filter, which removes a high-frequency component, is provided between the rectifier and the electric power converter.
24 Citations
7 Claims
-
1. A charging device for an electric vehicle, the charging device comprising:
-
a wireless power receiving device which receives high-frequency AC power by a magnetic field connection with a high-frequency alternating magnetic field; a wired power receiving device which is connected to an external power source for low-frequency AC power; a rectifier which rectifies AC power which is outputted from the wireless power receiving device and the wired power receiving device; an electric power converter which is connected to a rear part of the rectifier; and an power receiving device switching switch which switches electric power in such a way that electric power of the wireless power receiving device or electric power of the wired power receiving device is outputted to the rectifier;
in which a battery is charged by DC power which is outputted from the electric power converter, whereina high-frequency filter, which removes a high-frequency component included in electric power outputted from the rectifier, is provided between the rectifier and the electric power converter, the wired power receiving device includes a full-wave rectifier by which low-frequency AC power, which is inputted from the external power source, is rectified for a full wave, an inverter which converts pulsating electric power, which is outputted from the full-wave rectifier, to high-frequency AC power in a state where a pulsating component is maintained, and an insulated transformer which is connected to a rear part of the inverter, the high-frequency filter removes a high-frequency component which is related to a high-frequency component of the high-frequency AC power; when electric power is received from the wireless power receiving device, DC power at a constant voltage is inputted to the electric power converter, and when electric power is received from the wired power receiving device, pulsating electric power, in which a voltage waveform of the low-frequency AC power is rectified for a full wave, is inputted to the electric power converter; when electric power is received from the wireless power receiving device, the electric power converter performs a resistance conversion operation in which a voltage, which is inputted to the electric power converter, is increased or decreased, and outputs a constant voltage, and when electric power is received from the wired power receiving device, the electric power converter performs a power-factor improvement operation in which a power factor of electric power, which is inputted from the external power source, is improved, and outputs a constant voltage. - View Dependent Claims (3, 5, 7)
-
-
2. (canceled)
-
4. (canceled)
-
6. (canceled)
Specification