Noncontact electric power supply system

FIELD: electricity.

SUBSTANCE: system contains: electric power transmission coil; conversion unit which converts electrical energy supplied at the electrical power transmission side and outputs the electrical energy in the electric power transmission coil; controller at the electric power transmission side that controls the conversion unit; electric power receiving coil that receives an electric power from the electric power transmission coil in a contactless manner by at least a magnetic coupling and supplies the electric power into the load electrically connected to the electric power receiving coil; smoothing unit which smooths the electric power received by electric power reception coil; a sensor which detects a current flowing in the smoothing unit or the voltage of smoothing unit; and a controller for electric power reception side that receives the detection value of the sensor. The controller at the electric power transmission side transmits information from the electric power transmission side to the side of electric power reception by controlling the current value or the time of the outgoing current output in electric power transmission coil from the conversion unit, and controller at the electric power receiving side receives the information by obtaining the encoded values from the detection values.

EFFECT: ensuring the transfer of information between the electric power transmission and reception sides without the need for a separate communication coil.

6 cl, 19 dwg

 



 

Same patents:

FIELD: electrical engineering.

SUBSTANCE: invention can be used in electrical engineering. Contactless electric power supply by means of at least magnetic binding supplies power in contactless manner between coil (11) for transmission of electric power provided in device (1) for power supply, and coil (21) to receive electric power provided in vehicle (2). Device (1) for power supply has a means of recording information on side of electric power supply, communication device on side of electric power supply, which is connected with vehicle (2) and a controller on side of electric power supply, which controls output power of electric power source in coil (11) for transmission of electric power. Vehicle identification information is recorded in recording device during power supply or during preparation for supply of electric power in coil (21) to receive electric power. Controller on side of electric power supply cross-check vehicle identification information and information regarding vehicle, transmitted from vehicle when electric power supply in coil to receive electric power is terminated before electric power supply in coil to receive electric power normally is terminated.

EFFECT: technical result is providing cross-checking of identification information.

5 cl, 5 dwg

FIELD: transport.

SUBSTANCE: group of inventions relates to power supply of vehicles with electric motive power. System for transmission of electric power to a vehicle comprises an electric conductor structure which contains several segments (T1, T2, T3, T4, T5, T6, T7, T8); at that, every segment extends along the path of motion. Every segment has one line for every alternating current phase. System comprises several power supply units for supply of alternating current to the corresponding segment and a current source for transmission of electric power to multiple power supply units, which are connected in parallel relative to the current source. First power supply is manufactured with a possibility of connection to every segment of the first set of two segments (T1, T4, T1_a, T4_a, T1_b, T4_b). Every neighbouring segment (T2, T3, T5) is manufactured with a possibility of connection only to another power supply unit. At that, the first power supply unit is made and/or arranged so that internal impedances of its connections are identical with the segments of the first set.

EFFECT: technical result consists in possibility to transfer energy to electric vehicles with the help of closely arranged segments simultaneously, without loss of power level.

18 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: invention relates to wireless power transmission. Device for wireless transmission of electric energy in medium with high conductivity includes power transmission element configured to transmit electric energy wirelessly, and energy receiving element configured to receive electric power transmitted wirelessly from energy transmission element. Power transmission element and element of energy receiving coil comprise power transmission and covering element with dielectric configured to cover electric power transmission coil. They transmit electric energy, causing resonance at frequency determined by impedance of power transmission element, impedance of power receiving element and impedance of medium with high conductivity.

EFFECT: providing energy transfer in medium with high conductivity.

17 cl, 34 dwg

FIELD: electricity.

SUBSTANCE: contactless electric power supply system by means of at least magnetic coupling, supplies electricity in a contactless manner between coil 11 for transmission of electric power provided in electric power supply device 1, and coil 21 for receiving electric power provided in vehicle 2. Vehicle 2 comprises transmission means, which, by means of wireless communication, transmits from vehicle 2 to electric power supply device 1 a trigger signal, which triggers electric power supply device 1. Electric power supply device 1 comprises receiving means which receives a trigger signal and control means which controls electric power supply device based on trigger signal received by receiving means. Transmitting means transmits a first trigger signal when vehicle 2 moves, and transmits a second trigger signal when vehicle 2 stopped; and a control means controls electric power supply device according to first sequence of control operations, when first trigger signal is received, and controls electric power supply device 1 according to second sequence of control operations when second trigger signal is received.

EFFECT: providing charging of both parking and already parked vehicles.

6 cl, 14 dwg

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering. Transmitting device n-phase voltage system via a wireless network including the first clock-pulse generator (3), the first element I 4, the first counter (5), first comparison circuit (6), the first register (7), the first decoder (8), phases of multiphase EMF source (9i) (i = 1…n, n - number of phases), transistor keys (10i), the first signal conditioners (12i), (i = 1…n), the second pulse conditioners (23i), thyristors (24i), load phases (25i) (i = 1…n), output of the first pulse generator (3) is connected to the first input of the first element I 4, the output of which is connected to the first input of counter (5), which output is connected to the first input of the comparison circuit 6 and to input of the first decoder (8), the output of which is connected to the input of the first pulse conditioner (12i), the output of which is connected to the first input of key 10i, the second input of which is connected to the output of the phases 9i, output of the first register (7) is connected to the second input of the first comparison circuit (6), the output of which is connected to the second input of the first counter (5), outputs of the second pulse conditioner (23i) (i = l…n) are connected to second inputs of bidirectional thyristor (24i), the output of which is connected to the input of the load (25i), additionally comprises trigger (16), the second clock-pulse generator (17), the second element and 18, the second counter (19), the second comparison circuit (20), the second register (21), the second decoder (22), controlled switch (2), pulse conditioner (11i) (i = 1…n), the first source of displacement (13), radio signal transmitter (14), radio signal receiver (15), the second source of displacement (26), the first input of controlled switch (2) is connected to device (1) input, the second input is connected to output of source of displacement (13), and the output is connected to inputs of the phases (9i), outputs of the switches (10i) are connected to the input of pulse conditioner (11i), outputs of which are connected to the first input of the transmitter (14), zero input is connected with zero input source (13), output of the second clock-pulse generator (17) is connected to the first input of the second element I (18), the second input of which is connected to the output of trigger (16), input of which is connected to the first output of the receiver (15), output of the second element I (18) is connected to the first input of the second counter (19), the output of which is connected to the input of the second decoder (22) and to the first input of the second comparison circuit (20), the second input of which is connected to the output of the second register (21), and the output to the second input of the second counter (19), outputs of the second decoder (22) are connected to similar inputs of conditioners (23i), outputs of load phases (25i) are connected to input of source of displacement (26), input is connected with zero output of the receiver (15), the first output of the receiver (15) is connected to first inputs of bidirectional thyristors (24i) (i = 1…n) and trigger input (16).

EFFECT: technical result consists in expansion of functional capabilities due to transmission of n-phase voltage via wireless network.

1 cl, 1 dwg

FIELD: electrical engineering.

SUBSTANCE: invention can be used in electrical engineering. Contactless electric power supply system by means of at least magnetic binding, supplies power in a contactless manner between coil (11) for transmission of electric power provided in device (1) for power supply, and coil (21) to receive electric power provided in a vehicle (2). Vehicle (2) comprises a means of communication on side of vehicle, which allows power transfer from coil (11) in coil (21) relative to one of device (1) power supply from a plurality of devices (1) for supply of electric power and transmits a signal resolution, including identification information of one device (1) power supply. Power detector detects power, which is received by coil (21), and means to define if there is or not paired communication between a vehicle (2) and device (1) power supply. Device (1) for power supply comprises a communication device on side of electric power supply device, which receives signal resolution and control device, which may output power from a coil (11) to coil (21). Control device outputs power from coil (11) to coil (21), when identification information of device (1) power supply and identification information included in signal resolution, which is received by means of communication on side of device of electric power supply, coincide. Determining means determines that paired connection is arranged between one device (1) for power supply and vehicle (2) when power is detected by means of detecting power.

EFFECT: technical result is improvement of reliability of establishing communication between a vehicle and electric power supply device.

4 cl, 13 dwg

FIELD: electronics.

SUBSTANCE: invention relates to wireless charging of a vehicle accumulator battery. Contactless power supply device comprises coil (12) for electric power supply and coil (22) for receiving electric power, installed on lower surface (40) of vehicle floor. Floor panel (40) includes tunnel section (42), located in centre and extending to cabin space. Coil (22) includes distribution box (225) on its upper surface. Coil (22) is placed in front part on lower surface of floor panel (40) and is elongated along lower open tunnel section (42). Distribution box (225) is arranged in tunnel section (42).

EFFECT: technical result is simplification of vehicle parking, in order to correctly combine coil (22) for receiving electric power with coil (12) for transmission of electric power.

3 cl, 10 dwg

FIELD: energy.

SUBSTANCE: present invention generally relates to power transmission systems and charging devices for accumulator batteries and, in particular, to method and system for wireless transmission of energy by transmitting microwave radiation for supply of device, which requires electric energy. This is achieved due to transmission by wireless transmitter, comprising a controller and a phased antenna array, signal transmission of energy to selected phase, configured to phase, determined based on detected phase calibration signal from wireless receiver containing antenna with built-in rectifier which is configured to receive said transmission signal energy to charge storage batteries and/or main power source.

EFFECT: higher output of microwave radiation energy received by receiver of microwave radiation of device, which must be charged without need to determine its location.

7 cl, 15 dwg, 1 tbl

FIELD: machine building.

SUBSTANCE: disclosed is device for contactless power transmission, which can transmit power in contactless manner to power receiving device. Contactless power transmission device includes power transmission module configured to contactless power transmission to power receiving device, and communication module configured to send information relating to distribution of magnetic flux of power transmission module during transmission of power to power receiving device.

EFFECT: technical result is provision of transmitting and receiving modules compatibility without actual transmission of power.

15 cl, 31 dwg

FIELD: electronics.

SUBSTANCE: group of inventions relates to wireless charging of vehicle accumulator battery. Electric power supply device comprises communication means, notification means, detection means and control means. Communication means receives a trigger signal for activation of electric power supply device by means of wireless communication from vehicle. Notification means reports on state of electric power supply device. Detection means checks state of electric power supply device. Control means controls notification means based on detection result. Detection means checks state, in which power can be supplied from a coil for transmission of electric power via a contactless method. Control means controls notification means for reporting state, when non-contact power supply is possible, and state when not possible. Contactless electric power supply system also comprises a coil for receiving electric energy, which is installed on vehicle.

EFFECT: technical result is enabling determination of state of electric power supply device before parking vehicle.

7 cl, 14 dwg

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