Disclosed is a wireless charging system for an electric vehicle. A transmitter pad and an inverter are installed in a parking lot having a parking line indicated therein. The inverter previously memorizes a relative location of the transmitter pad to the parking line. An electric vehicle memorizes…
Wireless power transfer (WPT) systems having first and second primary windings and a secondary load winding are described. The WPT systems are configured such that the mutual inductance between the first and second primary windings is zero or substantially zero and the mutual inductance between…
A non-contact charging system includes: a power transmission coil; a living body detector; a vehicle; a power reception coil; an auxiliary battery; and a control device. Further, the control device adjust a detection range of the living body detector, and starts the charging control in a case where…
A detection device () includes a detection mat () having a plurality of detection coils (), and at least one pair of groups of detection coils (), the pair of groups of detection coils () includes first and second groups of detection coils (). The first and second group of detection coils ()…
A power transmitting device includes a power transmitting coil for providing output power to a power receiving coil, a thermal sensor that detects a temperature around the power transmitting coil, and a power transmission control circuit that controls the power transmitting device. The power…
A power transmitting device includes a power transmitting coil for providing output power to a power receiving coil, a thermal sensor that detects a temperature around the power transmitting coil, and a power transmission control circuit that controls the power transmitting device. The power…
A chargeability determining method, including before start of transmitting first electric power to a mobile object, wirelessly supplying second electric power to a charging space, detecting whether temperature in the charging space increases after the second electric power is transmitted, and…
In certain aspects, an enclosure for a wireless power transfer pad is disclosed. The enclosure includes a cover shell configured to be positioned over a portion of the wireless power transfer pad configured to face a wireless power receiver when wirelessly transferring power, wherein at least a…
A conductor arrangement structure for a wireless power supply system which is equipped with a ground-side device (3) that is installed on a ground side and has a power-feeding coil (L1) and a vehicle-side device (2) that is installed on a vehicle (1) and has a power-receiving coil (L2) and in which…
A conductor arrangement structure for a wireless power supply system which is equipped with a ground-side device (3) that is installed on a ground side and has a power-feeding coil (L1) and a vehicle-side device (2) that is installed on a vehicle (1) and has a power-receiving coil (L2) and in which…
A non-contact power feeding device feeds electric power in a non-contact manner from a transmission coil 31 installed on ground to a reception coil 32 of a mobile object stopping at a feeding position. The device includes, on the ground, an inverter 20 that outputs a high-frequency alternate…
Disclosed is a contactless power supply device which supplies power in a contactless manner, and adopts a configuration including a power supply coil that generates an electromagnetic field and supplies power, a case that houses the power supply coil, a wire that dissolves at a temperature below a…
A power transmission device having a surface a part of which defines a power transmission plane, the device includes: a power transmission circuit converting DC power into AC power; and a power transmission coil structure including 2N planar coils laminated in a direction which is perpendicular to…
A wireless power supply system (1) includes a power supply coil (20) installed on the ground, an inner balloon (30a) in which a power supply coil is mounted and configured to expand and contract to adjust a vertical position of the power supply coil, and an outer balloon (30b) provided to cover…
A power supply device of the present invention includes a power transmission unit (15) configured to wirelessly supply power to the power receiving unit (9). The power transmission unit (15) includes: a ground-side coil (13); and a housing (21) set on a ground (19) and configured to house the…
The present disclosure provides a non-contact charging apparatus including a power transmitting coil 1 and a power receiving coil 2 which face each other. At least one of the power transmitting coil 1 or the power receiving coil 2 includes a magnetic body 4 and a coil 5 wound around the magnetic…
A wireless power supply device, which supplies electric power to a movable body (M) by causing an end surface of a power supply coil (1a) that is provided in an electric power supply space to face a power receiving coil that is provided in the movable body, and by electromagnetically coupling the…
A wireless power-supplying system includes a power-transmitting coil (4) provided on the ground and a power-receiving coil (11) provided above the power-transmitting coil (4) and wirelessly supplies electric power from the power-transmitting coil (4) to the power-receiving coil (11). The wireless…
A transmitter element (U) for a system for inductive energy transmission between two transmitter elements comprises at least one substantially planar coil (2), which is accommodated in a housing (1). At least one measuring arrangement (4, 4a) for the capacitance and/or the voltage is connected…
The present invention aims to provide a coil unit with an improved accuracy in detecting foreign matter and an apparatus for detecting foreign matter with a better accuracy in detecting foreign matter when power is transmitted in a contactless manner. A power feeding coil unit L100 (a coil unit) is…
A wireless power-supplying system of the present invention includes a ground-based power-supplying device (S) having a power-supplying coil (4) and a vehicle (M) having a power-receiving coil (11), and performs power supply from the power-supplying coil (4) to the power-receiving coil (11) in a…
In the power supply apparatus (100), on an upper surface (202a), which is the surface opposing the power-receiving unit (153) of a cabinet (103b), in the portion where a power supply coil (103a) is projected when the power supply coil (103a) is projected on the cabinet (103b) toward the direction…
A power supply apparatus capable of appropriately supplying electrical power to a power transmission coil even if a foreign object is heated during power supply. The power supply apparatus (100) is provided with a power supply coil (103a) opposing a power-receiving unit (153) provided to a vehicle…
A foreign object detection device has a foreign object detector configured to detect a foreign object when a power receiver receives power from a power transmitter in a non-contact manner, the foreign object detector being arranged between the power receiver and the power transmitter, and a power…
The primary side (P) of an arrangement for inductively charging an electrically operated device (F) has a primary coil with at least two windings (1, 2, 2a, 2b). Each second winding (2, 2a, 2b) has a lower number of turns than the first winding (1) and is arranged radially outside the first winding…
In one embodiment, a coil includes a magnetic core and a winding. The magnetic core includes at least one block provided with a groove or an opening. Each block is arranged so as to make the groove or the opening extend along a direction of magnetic flux. The coil is used as a power transmitting…
A contactless power transmission device includes a power receiver (110), a power feeder (101) configured to contactlessly feed power to the power receiver (110), the power feeder (101) including a primary coil (122) configured to generate magnetic flux by an input alternating current voltage, and a…
In one embodiment, a power transmission system includes a power transmission apparatus having a power source unit supplying a high-frequency power, and a power transmission inductor including a magnetic core and a winding wire portion and wirelessly transmitting the high-frequency power from the…
This contactless electricity supply device, which contactlessly performs charging of the battery (28) of a vehicle, is provided with: an electricity transmission coil (12) disposed at a road surface; and an electricity reception coil (22) disposed in the vehicle. A foreign object detection coil…
The system has a processor unit (4), and an extrinsically calibrated stereo camera connected to the processor unit. A data storage device (33) i.e. server, is connected to the processor unit, and stores an item of information i.e. length, relating to a feature i.e. license plate, of a vehicle (2)…