JP5821370B2 - Power transmission device and power transmission system using the power transmission device - Google Patents

Description

  The present invention relates to a power transmission device that transmits power without being physically connected, and a power transmission system that uses the power transmission device.

  In recent years, many electronic devices that transmit power without contact have been developed. In order to transmit electric power in an electronic device in a non-contact manner, a magnetic field coupling type electric power transmission system in which coil modules are provided in both the electric power transmission unit and the electric power reception unit is often employed.

  However, in the magnetic field coupling method, the magnitude of the magnetic flux passing through each coil module is greatly affected by the electromotive force, and in order to transmit power with high efficiency, the coil module on the power transmission unit side (primary side) and the power reception unit side High accuracy is required for controlling the relative position in the coil plane direction with the coil module on the (secondary side). In addition, since the coil module is used as the coupling electrode, it is difficult to reduce the size of the power transmission unit and the power reception unit. Further, in portable devices and the like, it is necessary to consider the influence on the storage battery due to the heat generated by the coil, and there is also a problem that it may become a bottleneck in layout design.

  Thus, for example, a power transmission system using an electrostatic field is disclosed. Patent Document 1 discloses a transmission system in which electric power is transmitted from a coupling electrode of a power transmission unit to a coupling electrode of a power receiving unit via an electrostatic field. In Patent Document 1, since an electrostatic field is used, it is not necessary to control the relative position of the coupling electrode in the planar direction with high accuracy, and the degree of freedom in designing the layout of the coupling electrode is high.

  Patent Document 2 discloses an energy transfer device that realizes high power transmission efficiency by forming a strong electric field between the coupling electrode on the power transmission unit side and the coupling electrode on the power reception unit side. In Patent Document 2, the power transmission unit includes a large-size passive electrode and a small-size active electrode, and the power-receiving unit also includes a large-size passive electrode and a small-size active electrode. High electric power transmission efficiency is realized by forming a strong electric field between the active electrode of the power transmission unit and the active electrode of the power reception unit.

JP 2009-296857 A Special table 2009-531009

  Various types of electronic devices such as a mobile communication terminal device and a digital camera are assumed as electronic devices that receive power as a power receiving unit. Therefore, since the shape, size, and the like vary depending on the device, the size and position of the coupling electrode also differ depending on the device. Therefore, there is a problem that electric power cannot be transmitted with high efficiency unless the size and position of the coupling electrode of the power transmission unit are changed for each device.

  The present invention has been made in view of the above circumstances, a power transmission device capable of transmitting power with high efficiency regardless of the size and position of the coupling electrode, which differs depending on the shape, size, etc. of the power reception device, and An object is to provide a power transmission system using the power transmission device.

To achieve the above object, a power transmission device according to a first aspect of the present invention is a second coupling that transmits power in a non-contact manner to a power reception device having first coupling electrodes coupled to each other via an electrostatic field. In the power transmission device having an electrode, the second coupling electrode includes a moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed . One passive electrode and a first active electrode having a higher voltage than the first passive electrode, and the second coupling electrode is higher than the second passive electrode and the second passive electrode. A second active electrode that is a voltage, and the moving mechanism is configured such that at least one of the second active electrode and the second passive electrode includes the second active electrode and the second active electrode. Can be moved along the direction connecting the center of the passive electrode The second active electrode is the size including the first active electrode, the second passive electrode is characterized by magnitude der Rukoto encompasses the first passive electrode.

In the first invention, at least one of the second active electrode and the second passive electrode is movable along the direction connecting the centers of the second active electrode and the second passive electrode. The first active electrode and the second active electrode, the first passive electrode and the second passive electrode, even when using a power receiving device in which the distance between the active electrode and the first passive electrode is different , Each can be reliably aligned. Therefore, even when using a power receiving device in which the positions at which the first active electrode and the first passive electrode are arranged are different, it is possible to transmit power with high efficiency with one power transmission device. In addition, since the second active electrode has a size including the first active electrode and the second passive electrode has a size including the first passive electrode, the degree of freedom of the placement position of the power receiving device The power receiving device can be placed at a relative position where power can be transmitted with high efficiency. The active electrode means a combined electrode having a higher voltage than the other electrodes among the plurality of existing electrodes, and the passive electrode means a combined electrode having a lower voltage than the other electrodes among the plurality of existing electrodes.

Next, in order to achieve the above object, a power transmission device according to a second invention transmits power in a non-contact manner to a power reception device having first coupling electrodes for coupling to each other via an electrostatic field. In the power transmission device having two coupling electrodes, the first coupling electrode includes a moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed. Is composed of a first passive electrode and a first active electrode having a higher voltage than the first passive electrode, and the second coupling electrode includes the second passive electrode and the second passive electrode. Yes constituted by a second active electrode from the electrode at a high voltage, the moving mechanism, the second one at least one active electrode and said second passive electrode, the second active electrode and It is movable along the direction connecting the centers of the second passive electrodes. The first active electrode is the size including the second active electrode, said first passive electrode is characterized by a size encompassing the second passive electrode.

Since the second aspect of the invention, at least any one of the second active electrode and a second passive electrode, are then movable along the direction connecting the centers of the second active electrode and a second passive electrode, Even when a power receiving device in which the distance between the first active electrode and the first passive electrode is different is used, the first active electrode and the second active electrode, the first passive electrode and the second passive electrode The passive electrodes can be reliably aligned with each other. Therefore, even when using a power receiving device in which the positions at which the first active electrode and the first passive electrode are arranged are different, it is possible to transmit power with high efficiency with one power transmission device. In addition, since the first active electrode has a size including the second active electrode, and the first passive electrode has a size including the second passive electrode, the degree of freedom of the placement position of the power receiving device The power receiving device can be placed at a relative position where power can be transmitted with high efficiency.

Further, the power transmission device according to the third invention, in the first or second invention, the second active electrode is Yes fixed, characterized in that said second passive electrode is movable.

In the third aspect of the invention, the first active electrode can be moved only by moving the second passive electrode, even if a power receiving device in which the distance between the first active electrode and the first passive electrode is different is used. With the electrode and the second active electrode aligned, the first passive electrode and the second passive electrode can be aligned by moving the second passive electrode. Therefore, even when using a power receiving device in which the positions at which the first active electrode and the first passive electrode are arranged are different, it is possible to transmit power with high efficiency with one power transmission device.

According to a fourth aspect of the present invention, in the first or second aspect , the second passive electrode is fixed, and the second active electrode is movable.

In the fourth aspect of the invention, the first passive electrode can be used even when using a power receiving device in which the distance between the first active electrode and the first passive electrode is different by moving only the second active electrode. With the electrode and the second passive electrode aligned, the first active electrode and the second active electrode can be aligned by moving the second active electrode. Therefore, even when using a power receiving device in which the positions at which the first active electrode and the first passive electrode are arranged are different, it is possible to transmit power with high efficiency with one power transmission device.

A power transmission device according to a fifth aspect of the present invention is the power transmission device according to any one of the first to fourth aspects, wherein the support unit that supports the power reception device is the second active electrode and the second active electrode of the power transmission device. It is provided at either end in the direction connecting the centers of the passive electrodes.

In 5th invention, the support part which supports a power receiving apparatus is provided in either one end of the direction which connects the center of a 2nd active electrode and a 2nd passive electrode of a power transmission apparatus. As a result, when the power transmission device is placed upright or tilted so that the support portion is downward, the position of the power reception device in the direction connecting the centers of the second active electrode and the second passive electrode is fixed by the support portion. Therefore, it is possible to place the power receiving device at a relative position where the power can be transmitted with high efficiency without being conscious of the user.

The power transmission device according to a sixth aspect of the present invention is the power transmission device according to any one of the first to fifth aspects, wherein the lateral support portion that supports the side portion of the power reception device is the second active electrode and the second passive portion. The power transmission device is provided along a direction connecting the centers of the electrodes.

In a sixth aspect of the invention, the power transmission device includes a lateral support portion that supports the side surface portion of the power receiving device along a direction connecting the centers of the second active electrode and the second passive electrode. As a result, the position of the power receiving device in the direction substantially perpendicular to the direction connecting the centers of the second active electrode and the second passive electrode can be fixed by the lateral support portion, and power can be efficiently generated without being conscious of the user. Thus, it is possible to place the power receiving device at a relative position where transmission is possible.

Next, in order to achieve the above object, a power transmission device according to a seventh aspect of the present invention transmits power in a non-contact manner to a power reception device having first coupling electrodes for coupling to each other via an electrostatic field. In the power transmission device having two coupling electrodes, the first coupling electrode includes a moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed. is Yes constituted by a first active electrode and a third active electrode said is an active electrode and the like voltages, the second coupling electrode, the second active electrode and said second Yes constituted by a fourth active electrode is an active electrode and the like voltages, the moving mechanism, the second one at least one of the active electrode and the fourth active electrode, the second active It is movable along the direction connecting the center of the electrode and the fourth active electrode. The second active electrode is the size including the first active electrode, said fourth active electrode is characterized by a size encompassing the third active electrode.

In the seventh invention, at least one of the second active electrode and the fourth active electrode of the power transmission device can be moved along a direction connecting the centers of the second active electrode and the fourth active electrode. Even when using a power receiving device with different positions where the first active electrode and the third active electrode are arranged, it is possible to transmit power with a single power transmission device with high efficiency. It becomes possible to do.
Next, in order to achieve the above object, a power transmission device according to an eighth aspect of the present invention transmits power in a non-contact manner to a power reception device having first coupling electrodes for coupling to each other via an electrostatic field. In the power transmission device having two coupling electrodes, the first coupling electrode includes a moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed. Is composed of a first active electrode and a third active electrode having a voltage equivalent to that of the first active electrode, and the second coupling electrode includes the second active electrode and the second active electrode. A fourth active electrode having the same voltage as the electrode, and the moving mechanism includes at least one of the second active electrode and the fourth active electrode, It is movable along the direction connecting the centers of the fourth active electrodes. The first active electrode is the size including the second active electrode, the third active electrode is characterized by a size encompassing the fourth active electrode.
In the eighth invention, at least one of the second active electrode and the fourth active electrode of the power transmission device may be moved along a direction connecting the centers of the second active electrode and the fourth active electrode. Even when using a power receiving device with different positions where the first active electrode and the third active electrode are arranged, it is possible to transmit power with a single power transmission device with high efficiency. It becomes possible to do.

Next, in order to achieve the above object, a power transmission device according to a ninth invention transmits power in a non-contact manner to a power reception device having first coupling electrodes for coupling to each other via an electrostatic field. In the power transmission device having two coupling electrodes, the second coupling electrode includes a moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed. Is composed of a second passive electrode and a second active electrode having a higher voltage than the second passive electrode, and a support part for supporting the power receiving device is provided with the second active electrode and the second active electrode. When the flat plate portion has a first divided flat plate portion and a second divided flat plate portion connected to each other, and the power receiving device is mounted. the a second active electrode and the first active electrode overlap, the first split flat In a state where the first divided flat plate portion is closed by overlapping with the second divided flat plate portion or in a state where the first divided flat plate portion is overlapped and closed on the second divided flat plate portion. .

In a ninth aspect of the invention, a support portion for supporting the power receiving device is provided at a lower end of the flat plate portion provided with the second active electrode and the second passive electrode of the power transmission device, and the flat plate portion is connected to the first divided portion. It has a flat plate portion and a second divided flat plate portion. When the power receiving device is placed, the second active electrode and the first active electrode overlap, and the first divided flat plate portion is overlapped with the second divided flat plate portion or closed, or the second divided flat plate Since the first divided flat plate portion in a state of being overlapped and closed is opened, it is possible to deal with power receiving devices having different sizes with a single power transmitting device.

Next, in order to achieve the above object, a power transmission system according to a tenth aspect of the invention includes a power receiving device having a first coupling electrode and a power transmission device having a second coupling electrode for coupling to each other via an electrostatic field. In the power transmission system that transmits power from the power transmission device to the power receiving device in a contactless manner, the power transmission device includes the second coupling electrode and the first coupling electrode. The first coupling electrode includes a first passive electrode and a first active electrode having a higher voltage than the first passive electrode. The second coupling electrode includes a second passive electrode and a second active electrode having a higher voltage than the second passive electrode, and the moving mechanism includes the second active electrode. At least one of an electrode and the second passive electrode The second active electrode is movable along a direction connecting the centers of the second active electrode and the second passive electrode, and the second active electrode has a size including the first active electrode, the passive electrode and said magnitude der Rukoto encompasses the first passive electrode.

In the tenth aspect of the invention, at least one of the second active electrode and the second passive electrode is movable along a direction connecting the centers of the second active electrode and the second passive electrode. The first active electrode and the second active electrode, the first passive electrode and the second passive electrode, even when using a power receiving device in which the distance between the active electrode and the first passive electrode is different , Each can be reliably aligned. Therefore, even when using a power receiving device in which the positions at which the first active electrode and the first passive electrode are arranged are different, it is possible to transmit power with high efficiency with one power transmission device. In addition, since the second active electrode has a size including the first active electrode and the second passive electrode has a size including the first passive electrode, the degree of freedom of the placement position of the power receiving device The power receiving device can be placed at a relative position where power can be transmitted with high efficiency.
Next, in order to achieve the above object, a power transmission system according to an eleventh aspect of the present invention includes a power receiving device having a first coupling electrode and a power transmission device having a second coupling electrode that are coupled to each other via an electrostatic field. In the power transmission system that transmits power from the power transmission device to the power receiving device in a contactless manner, the power transmission device includes the second coupling electrode and the first coupling electrode. The first coupling electrode includes a first passive electrode and a first active electrode having a higher voltage than the first passive electrode. The second coupling electrode includes a second passive electrode and a second active electrode having a higher voltage than the second passive electrode, and the moving mechanism includes the second active electrode. At least one of an electrode and the second passive electrode The first active electrode is movable along a direction connecting the centers of the second active electrode and the second passive electrode, and the first active electrode is sized to include the second active electrode. The passive electrode is sized to include the second passive electrode.
In the eleventh invention, at least one of the second active electrode and the second passive electrode is movable along a direction connecting the centers of the second active electrode and the second passive electrode. The first active electrode and the second active electrode, the first passive electrode and the second passive electrode, even when using a power receiving device in which the distance between the active electrode and the first passive electrode is different , Each can be reliably aligned. Therefore, even when using a power receiving device in which the positions at which the first active electrode and the first passive electrode are arranged are different, it is possible to transmit power with high efficiency with one power transmission device. In addition, since the first active electrode has a size including the second active electrode, and the first passive electrode has a size including the second passive electrode, the degree of freedom of the placement position of the power receiving device The power receiving device can be placed at a relative position where power can be transmitted with high efficiency.

Next, in order to achieve the above object, a power transmission system according to a twelfth aspect of the present invention includes a power reception device having a first coupling electrode and a power transmission device having a second coupling electrode for coupling to each other via an electrostatic field. In the power transmission system that transmits power from the power transmission device to the power receiving device in a contactless manner, the power transmission device includes the second coupling electrode and the first coupling electrode. comprising a moving mechanism capable of moving according to the position you are, the first coupling electrode is constituted by a first active electrode and a third active electrode said is an active electrode and the like voltage Yes and the second coupling electrode, Yes constituted by the second active electrode and the fourth active electrode is said second active electrode and the like voltages, the moving mechanism, the second At least one of the active electrode and the fourth active electrode The second has the center as movable along a direction connecting the active electrode and the fourth active electrode, the second active electrode is the size including the first active electrode, said fourth The active electrode is sized to include the third active electrode .

Since the twelfth invention, the at least one of the second active electrode and the fourth active electrode, are then movable along the direction connecting the center of the second active electrode and the fourth active electrode, Even when a power receiving device in which the distance between the first active electrode and the third active electrode is different is used, the first active electrode, the second active electrode, the third active electrode, and the fourth active electrode The active electrodes can be reliably aligned with each other. Therefore, even when using a power receiving device in which the positions at which the first active electrode and the third active electrode are arranged are different, it is possible to transmit power with high efficiency with one power transmitting device. In addition, since the second active electrode has a size including the first active electrode and the fourth active electrode has a size including the third active electrode, the degree of freedom of the placement position of the power receiving device The power receiving device can be placed at a relative position where power can be transmitted with high efficiency.
Next, in order to achieve the above object, a power transmission system according to a thirteenth aspect of the present invention includes a power receiving device having a first coupling electrode for coupling to each other via an electrostatic field, and a power transmission device having a second coupling electrode. In the power transmission system that transmits power from the power transmission device to the power reception device in a contactless manner, the power transmission device includes the second coupling electrode and the first coupling electrode. The first coupling electrode includes a first active electrode and a third active electrode having a voltage equivalent to that of the first active electrode. The second coupling electrode includes a second active electrode and a fourth active electrode having a voltage equivalent to the second active electrode, and the moving mechanism includes the second active electrode. And at least one of the fourth active electrodes, The second active electrode and the fourth active electrode are movable along a direction connecting the centers thereof, and the first active electrode is sized to include the second active electrode, and the third active electrode The active electrode is sized to include the fourth active electrode.
In the thirteenth invention, at least one of the second active electrode and the fourth active electrode is movable along the direction connecting the centers of the second active electrode and the fourth active electrode. Even when a power receiving device in which the distance between the active electrode and the third active electrode is different is used, the first active electrode and the second active electrode, the third active electrode and the fourth active electrode , Each can be reliably aligned. Therefore, even when using a power receiving device in which the positions at which the first active electrode and the third active electrode are arranged are different, it is possible to transmit power with high efficiency with one power transmitting device. Further, since the first active electrode has a size including the second active electrode and the third active electrode has a size including the fourth active electrode, the degree of freedom of the placement position of the power receiving device The power receiving device can be placed at a relative position where power can be transmitted with high efficiency.

Next, in order to achieve the above object, a power transmission system according to a fourteenth aspect of the present invention includes a power receiving device having a first coupling electrode and a power transmission device having a second coupling electrode that are coupled to each other via an electrostatic field. In the power transmission system that transmits power from the power transmission device to the power receiving device in a contactless manner, the power transmission device includes the second coupling electrode and the first coupling electrode. The second coupling electrode includes a second passive electrode and a second active electrode having a higher voltage than the second passive electrode. There Te, the supporting portion supporting the power receiving device, provided in said second active electrode and the second lower end of the flat plate portion passive electrode is provided, said plate comprises a first dividing plates connected Part and a second divided flat plate part, the power transmission device Wherein when the power receiving device is placed, said a second active electrode and the first active electrode overlap, said first dividing plate portion of superposing the second division plate portion closed state or the The first divided flat plate portion in a state of being overlapped and closed on the second divided flat plate portion is in an open state.

In a fourteenth aspect of the invention, a support portion that supports the power receiving device is provided at the lower end of the flat plate portion provided with the second active electrode and the second passive electrode of the power transmission device, and the flat plate portion is connected to the first divided portion. It has a flat plate portion and a second divided flat plate portion. When the power receiving device is placed on the power transmission device, the second active electrode and the first active electrode overlap, and the first divided flat plate portion is overlapped with the second divided flat plate portion or closed. Since the first divided flat plate portion, which is in a state of being overlapped with the divided flat plate portion and being closed, is opened, it is possible to deal with power receiving devices of different sizes with one power transmission device.

In the power transmission device and the power transmission system according to the present invention, at least one of the second active electrode and the second passive electrode moves along a direction connecting the centers of the second active electrode and the second passive electrode. Since it is possible, even when using a power receiving device in which the distance between the first active electrode and the first passive electrode is different, the first active electrode, the second active electrode, and the first passive electrode are used. Position alignment can be reliably performed for the electrode and the second passive electrode. Therefore, even when using a power receiving device in which the positions at which the first active electrode and the first passive electrode are arranged are different, it is possible to transmit power with high efficiency with one power transmission device. In addition, since the second active electrode has a size including the first active electrode and the second passive electrode has a size including the first passive electrode, the degree of freedom of the placement position of the power receiving device The power receiving device can be placed at a relative position where power can be transmitted with high efficiency.

It is a circuit diagram which shows typically the structure of the power transmission apparatus of the electric power transmission system which concerns on Embodiment 1 of this invention. It is an equivalent circuit diagram which shows typically the structure of the electric power transmission system which concerns on Embodiment 1 of this invention. It is a functional block diagram which shows typically the structure of the electric power transmission system which concerns on Embodiment 1 of this invention. It is a perspective view which shows typically the structure of the moving mechanism of the power transmission apparatus of the electric power transmission system which concerns on Embodiment 1 of this invention. It is a fragmentary top view which shows typically the structure of the moving mechanism of the power transmission apparatus of the electric power transmission system which concerns on Embodiment 1 of this invention. It is a schematic diagram explaining the use condition of the electric power transmission system which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the relationship of the area of the electrode by the side of the power transmission apparatus of the electric power transmission system which concerns on Embodiment 1 of this invention, and the electrode by the side of a power receiving apparatus. It is an illustration figure of the electricity supply method to the active electrode of the electric power transmission system which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the power transmission apparatus of the structure which has two coupling electrodes of the electric power transmission system which concerns on Embodiment 1 of this invention, and both can move. It is a schematic diagram which shows the power transmission apparatus of the structure which has three coupling electrodes of the power transmission system which concerns on Embodiment 1 of this invention, and the coupling electrodes of both ends can move. It is a schematic diagram which shows the state which mounted the power receiving apparatus in the power transmission apparatus of the power transmission system which concerns on Embodiment 2 of this invention. It is a schematic diagram which shows the state which mounted the power receiving apparatus in the power transmission apparatus of the power transmission system which concerns on Embodiment 3 of this invention. It is a schematic diagram which shows the state which mounted the power receiving apparatus in the power transmission apparatus of the power transmission system which concerns on Embodiment 4 of this invention. It is a schematic diagram which shows the state which mounted the power receiving apparatus in the power transmission apparatus of the power transmission system which concerns on Embodiment 4 of this invention. It is a schematic diagram which shows the other state which mounted the power receiving apparatus in the power transmission apparatus of the power transmission system which concerns on Embodiment 4 of this invention.

  Hereinafter, a power transmission device according to an embodiment of the present invention and a power transmission system using the power transmission device will be specifically described with reference to the drawings. The following embodiments do not limit the invention described in the claims, and all combinations of characteristic items described in the embodiments are essential to the solution. It goes without saying that it is not limited.

(Embodiment 1)
FIG. 1 is a circuit diagram schematically showing the configuration of the power transmission device of the power transmission system according to Embodiment 1 of the present invention. As shown in FIG. 1A, the power transmission device 1 of the power transmission system according to the first embodiment includes at least an AC generation circuit 12, a step-up transformer 13, and a coupling electrode (second coupling electrode) 11. I have. In the circuit of FIG. 1A, when boosted by the step-up transformer 13, the active electrode (second active electrode) 11a has a high voltage, and the passive electrode (second passive electrode) 11p has a low voltage.

  The ground wire 14 illustrated in FIG. 1A is not necessarily required, and the power transmission device 1 may have a configuration illustrated in FIG. In addition, the coupling electrodes 11 boosted by the step-up transformer 13 may all have the same high voltage. This is equivalent to connecting a plurality of active electrodes 11a. That is, in the configuration of FIG. 1B, the coupling electrode 11 of the power transmission device 1 is configured by two active electrodes (second active electrode and fourth active electrode) 11a having substantially the same voltage. The coupling electrode of the power receiving device is also composed of two active electrodes (first active electrode and third active electrode) having substantially the same voltage. Hereinafter, the configuration of FIG. 1A will be described. Needless to say, the configuration of FIG. 1B is the same from the viewpoint of alignment of the coupling electrode 11.

  FIG. 2 is an equivalent circuit diagram schematically showing the configuration of the power transmission system according to Embodiment 1 of the present invention. As shown in FIG. 2, the coupling electrode (second coupling electrode) 11 of the power transmission device 1 and the coupling electrode (first coupling electrode) 21 of the power receiving device 2 are respectively an active electrode (second active electrode) 11a, It is composed of a passive electrode (second passive electrode) 11p having a size larger than that of the active electrode 11a, an active electrode (first active electrode) 21a, and a passive electrode (first passive electrode) 21p having a size larger than the active electrode 21a. Yes. That is, the active electrode (second active electrode) 11a, the passive electrode (second passive electrode) 11p, the active electrode (first active electrode) 21a, and the passive electrode (first passive electrode) 21p are asymmetrical. Shape.

  The coupling electrode 11 of the power transmitting device 1 and the coupling electrode 21 of the power receiving device 2 are an active electrode (second active electrode) 11a, an active electrode (first active electrode) 21a, and a passive electrode (second passive electrode) 11p. And the passive electrode (first passive electrode) 21p form a capacitance, and power can be transmitted by capacitive coupling. The transmitted power is stepped down by the step-down transformer 23 and supplied to the load circuit 22. In FIG. 2, the resonance circuit is also included, but this is for enhancing the stability of power transmission, and the resonance circuit is not necessarily required. The capacitance CM corresponds to a coupling capacitance between the active electrode (second active electrode) 11a of the power transmission device 1 and the active electrode (first active electrode) 21a of the power reception device 2.

  FIG. 3 is a functional block diagram schematically showing the configuration of the power transmission system according to Embodiment 1 of the present invention. As shown in FIG. 3, the AC power supplied from the AC generation circuit 101 of the power transmission device 1 is amplified by the amplifier 102, boosted by the step-up transformer 103, and supplied to the coupling electrode 104. The coupling electrode 104 is disposed on a movable plate described later, and the AC generation circuit 101, the amplifier 102, and the step-up transformer 103 are built in a power transmission stand described later. The power transmitted from the coupling electrode 104 of the power transmission device 1 to the coupling electrode 201 of the power reception device 2 is stepped down by the step-down transformer 202, rectified by the rectification unit 203, and then supplied to the load 204.

  Here, the coupling electrode 11 (active electrode 11a, passive electrode 11p) of the power transmission device 1 in FIG. 2 and the coupling electrode 21 (active electrode 21a, passive electrode 21p) of the power receiving device 2 are each formed of a conductive material. Is done. For example, conductors such as copper, gold, and silver, and these compounds can be used. By arranging the coupling electrode 11 and the coupling electrode 21 formed of a conductive material at a position where they are coupled to each other via an electrostatic field, an electrostatic capacitance is generated between the coupling electrode 11 and the coupling electrode 21. Arise. The power transmission efficiency varies depending on the size of the generated capacitance.

  FIG. 4 is a perspective view schematically showing the configuration of the moving mechanism of the power transmission device 1 of the power transmission system according to Embodiment 1 of the present invention, and FIG. 5 is the power transmission according to Embodiment 1 of the present invention. It is a partial top view which shows typically the structure of the moving mechanism of the power transmission apparatus 1 of a system. An active electrode (second active electrode) 11 a and a passive electrode (second passive electrode) 11 p are provided on one surface of the power transmission stand 40 constituting the main body portion of the power transmission device 1. The active electrode 11a is mounted on the upper surface of the movable plate 43 whose position can be moved.

  The movable plate 43 can pass under the two guides 41 and constitutes a moving mechanism for moving the active electrode 11a. The two guides 41 are provided along the direction connecting the centers of the active electrode 11a and the passive electrode 11p. For example, as shown in FIG. 5, one end of the movable plate 43 is fitted into a groove 41a under one guide 41, and the other end is fitted so as to be able to slide through a through hole 41b under the other guide 41. ing. The movable plate 43 can be moved to a desired position by moving the slide portion 42 along the guide 41 in the direction of the arrow shown in FIG.

  The moving mechanism is not limited to the configuration shown in FIGS. 4 and 5, as long as the relative position between the active electrode 11 a and the passive electrode 11 p can be changed by moving the active electrode 11 a. It is not particularly limited.

  Moreover, although the active electrode 11a of the power transmission device 1 is moved, the passive electrode 11p of the power transmission device 1 may be moved. As described above, when the passive electrode 11p is fixed and the active electrode 11a is moved, there is an effect that the degree of freedom of the placement position of the active electrode 21a in the power receiving device 2 is increased. On the other hand, when the active electrode 11a is fixed and the passive electrode 11p is moved, since the active electrode 11a having a high voltage is fixed, the movable part of the high-voltage wiring can be lost, and fluctuations in the surrounding stray capacitance can be reduced. Can be suppressed. Furthermore, since the active electrode 11a does not move, mechanical reliability can be improved.

  FIG. 6 is a schematic diagram illustrating a usage state of the power transmission system according to Embodiment 1 of the present invention. As shown in FIG. 6A, when the power receiving device 2 is a small power receiving device 2 having a relatively short distance between the active electrode 21a and the passive electrode 21p, the position of the passive electrode 11p of the power transmitting device 1 and the power receiving The power receiving device 2 is placed at a position where the position of the passive electrode 21p of the device 2 completely coincides, and the slide portion 42 is moved, whereby the position of the active electrode 11a of the power transmitting device 1 is changed to the active electrode 21a of the power receiving device 2. The active electrode 11a of the power transmission device 1 is moved so as to completely coincide with the position.

  In addition, as illustrated in FIG. 6B, when the power receiving device 2 is a large power receiving device 2 in which the distance between the active electrode 21 a and the passive electrode 21 p of the power receiving device 2 is relatively long, the position of the passive electrode 11 p of the power transmitting device 1. Is placed at a position where the position of the passive electrode 21p of the power receiving device 2 is completely coincident with the position of the passive electrode 21p, and the slide portion 42 is moved so that the position of the active electrode 11a of the power transmitting device 1 is the The active electrode 11a of the power transmission device 1 is moved so as to completely coincide with the position of the electrode 21a.

  Thus, by moving the active electrode 11a of the power transmission device 1 according to the distance between the active electrode 21a and the passive electrode 21p of the power reception device 2, the positions of the active electrode 21a and the passive electrode 21p of the power reception device 2 are as follows. Regardless of this, it becomes possible to transmit power with high efficiency.

  The active electrode 11a of the power transmission device 1 and the active electrode 21a of the power reception device 2, the passive electrode 11p of the power transmission device 1 and the passive electrode 21p of the power reception device 2 are at least as large as the area of each electrode of the power transmission device 1. It is preferable that it is larger than the area of each electrode of the power receiving device 2, and ideally, the size of each electrode of the power receiving device 2 is completely included in each electrode of the power transmitting device 1. It is because the freedom degree of the mounting position of the power receiving apparatus 2 increases.

  FIG. 7 is a schematic diagram showing the area relationship between each electrode of power transmission device 1 and each electrode of power reception device 2 of the power transmission system according to Embodiment 1 of the present invention. As shown in FIG. 7, the lateral length W1 of the active electrode 11a of the power transmitting device 1 and the lateral length W3 of the passive electrode 11p of the power transmitting device 1 are respectively the lateral direction of the active electrode 21a of the power receiving device 2. The length W2 of the power receiving device 2 and the length W4 in the lateral direction of the power receiving electrode 21p of the power receiving device 2 are preferably longer. In addition, the vertical length L1 of the active electrode 11a of the power transmission device 1 and the vertical length L3 of the passive electrode 11p of the power transmission device 1 are the vertical length L2 of the active electrode 21a of the power reception device 2, respectively. And it is preferable to make it become longer than length L4 of the vertical direction of the passive electrode 21p of the power receiving apparatus 2. FIG. By doing in this way, while the freedom degree of the horizontal mounting position of the power receiving apparatus 2 increases, the freedom degree of the vertical mounting position of the power receiving apparatus 2 also increases.

  Of course, on the contrary, the same effect can be expected even if the active electrode 21a and the passive electrode 21p of the power receiving device 2 have a size including the active electrode 11a and the passive electrode 11p of the power transmitting device 1.

  Note that the opening 44 shown in FIGS. 4 and 5 is provided in the lower part of the movable plate 43 to ensure electrical connection of the active electrode 11a. FIG. 8 is an exemplary diagram of a method of energizing the active electrode 11a of the power transmission system according to the first embodiment of the present invention. FIG. 8 schematically shows a cross section in the direction of movement of the movable plate 43 shown in FIG.

  In FIG. 8A, a pin 81 connected to an AC generating circuit is provided below the active electrode 11a, and the tip of the pin 81 is in contact with the active electrode 11a through the opening 44. Thereby, even if the movable plate 43 on which the active electrode 11a is mounted moves in the direction of the arrow, the electrical connection of the active electrode 11a is not interrupted.

  In FIG. 8B, a flexible cable 82 connected to the AC generating circuit at the lower part of the active electrode 11a is connected to the active electrode 11a through the opening 44. Thereby, even if the movable plate 43 on which the active electrode 11a is mounted moves in the direction of the arrow, the electrical connection of the active electrode 11a is not interrupted.

  Further, in FIG. 8C, a structure in which a counter electrode 83 facing the active electrode 11 a is provided on the power transmitting table 40, and the power transmitting table 40 and the movable plate 43 that are insulators are sandwiched between the active electrode 11 a and the counter electrode 83. Thus, the counter electrode 83 and the active electrode 11a are capacitively coupled. Thereby, there is almost no restriction on the movement of the movable plate 43 to which the active electrode 11a is attached in the arrow direction. Even if the movable plate 43 moves in the direction of the arrow, the electrical connection of the active electrode 11a is not interrupted. In general, it is preferable to set the capacitance between the counter electrode 83 and the active electrode 11a to be larger than the capacitance between the active electrode 11a and the passive electrode 11p.

  Note that both the active electrode 11a and the passive electrode 11p of the power transmission device 1 may be movable. FIG. 9 is a schematic diagram showing power transmission device 1 having a configuration in which two coupling electrodes 11 of the power transmission system according to Embodiment 1 of the present invention are both movable.

  As shown in FIG. 9, both the active electrode 11 a of the power transmission device 1 and the passive electrode 11 p of the power transmission device 1 can be mounted on the movable plate 43 and moved in the arrow direction by the slide part 42. It has become. The configuration of the moving mechanism may be the same as that of the moving mechanism shown in FIG. By doing in this way, it becomes possible to transmit electric power with respect to more kinds of power receiving apparatuses 2, without enlarging the power transmission apparatus 1 too much.

  Further, the number of coupling electrodes 11 of the power transmission device 1 is not limited. For example, when three coupling electrodes 11 are provided, it is possible to transmit power to more types of power receiving devices 2 by adopting a configuration in which the coupling electrodes existing at both ends can be moved. Become.

  FIG. 10 is a schematic diagram showing power transmission device 1 having a configuration in which three coupling electrodes 11 of the power transmission system according to Embodiment 1 of the present invention are movable and the coupling electrodes at both ends are movable. In the example of FIG. 10, passive electrodes 11p are arranged on both sides of the active electrode 11a. In this case, the passive electrodes 11p on both sides may be attached to the movable plate 43 and moved by the slide part 42 in the direction of the arrow. The configuration of the moving mechanism may be the same as that of the moving mechanism shown in FIG. By doing in this way, it becomes possible to transmit electric power with respect to more kinds of power receiving apparatuses 2, without enlarging the power transmission apparatus 1 too much.

  As described above, according to the first embodiment, the coupling electrode 11 (active electrode 11a, passive electrode 11p) of the power transmission device 1 is arranged with the coupling electrode 21 (active electrode 21a, passive electrode 21p) of the power receiving device 2. Even when using the power receiving device 2 having different positions where the active electrode 21a and the passive electrode 21p are arranged by providing a moving mechanism that can be moved according to the position where The power transmission device 1 can transmit power with high efficiency.

  When at least one of the active electrode 11a and the passive electrode 11p of the power transmission device 1 is moved, the active electrode 11a and the passive electrode 11p are passively moved according to the position where the active electrode 21a and the passive electrode 21p of the power reception device 2 are arranged. Needless to say, a positioning mark, a positioning member, or the like for the electrode 11p may be provided.

(Embodiment 2)
Since the configurations of the power transmitting device 1 and the power receiving device 2 of the power transmission system according to the second embodiment are basically the same as those of the first embodiment, detailed description thereof is omitted by attaching the same reference numerals. The second embodiment is different from the first embodiment in that the power transmitting device 1 includes a positioning mechanism for the power receiving device 2.

  FIG. 11 is a schematic diagram illustrating a state in which the power receiving device 2 is placed on the power transmitting device 1 of the power transmission system according to the second embodiment of the present invention. In the example of FIG. 11, the vertical direction of the drawing indicates the vertical direction, and shows a state where the power transmission device 1 is placed upright.

  As shown in the plan view of FIG. 11 (a) and the left side view of FIG. 11 (b), the power transmission device 1 projects forward from the mounting surface 112 on which the active electrode 11a and the passive electrode 11p are provided. A support portion 111 that supports the power receiving device 2 is provided. When the power receiving device 2 is placed on the power transmitting device 1, the power receiving device 2 is slid until one end of the power receiving device 2 comes into contact with the support portion 111, and the active electrode 11 a and the passive electrode 11 p of the power transmitting device 1 and The electrode 21a and the passive electrode 21p can be aligned. A support portion 111 that supports the power receiving device 2 is provided at one end of the power transmission device 1 in the direction connecting the centers of the active electrode 11a and the passive electrode 11p, and is supported when the power transmission device 1 is placed upright. It is used with the part 111 facing downward.

  Further, a lateral support portion that supports the side surface portion of the power reception device 2 may be provided in the power transmission device 1 along a direction connecting the centers of the active electrode 11a and the passive electrode 11p. As shown in the plan view of FIG. 11C, a set of lateral support portions 113 is provided so as to be movable in the lateral direction. By moving in the arrow direction according to the width of the power receiving device 2, the power receiving device 2 is always placed at the center of the power transmitting device 1 in the lateral direction. Therefore, more stable power transmission can be performed. Needless to say, the position of the lateral support 113 may be provided with a positioning mark, a positioning member, and the like according to the type of the power receiving device 2.

  As described above, according to the second embodiment, the power transmission device 1 includes the support unit 111 and / or the lateral support unit 113 as a positioning mechanism of the power reception device 2, thereby mounting the power reception device 2 on the power transmission device 1. The position in the vertical direction and / or the horizontal direction when placed can be fixed, and the power receiving device 2 can be placed at a relative position where the power can be transmitted with high efficiency without being conscious of the user. It becomes.

(Embodiment 3)
Since the configurations of the power transmission device 1 and the power receiving device 2 of the power transmission system according to the third embodiment are basically the same as those of the first and second embodiments, detailed description thereof is omitted by attaching the same reference numerals. To do. In the third embodiment, the passive electrode 11p and the active electrode 11a of the power transmission device 1, the active electrode 21a of the power reception device 2, The difference from Embodiments 1 and 2 is that the coupling electrodes are arranged in the order of the electrodes 21p.

  FIG. 12 is a schematic diagram illustrating a state in which the power receiving device 2 is placed on the power transmitting device 1 of the power transmission system according to the third embodiment of the present invention. As shown in FIG. 12, in the power transmission device 1, the active electrode 11a is disposed on the power reception device 2 side, and the passive electrode 11p is disposed on the opposite side of the power reception device 2 with respect to the active electrode 11a. On the other hand, the power receiving device 2 is also arranged with the active electrode 21a on the power transmission device 1 side and the passive electrode 21p on the side opposite to the power transmission device 1 with respect to the active electrode 21a.

  The active electrode 11a of the power transmission device 1 is mounted on the upper surface of a movable plate 43 whose position can be moved. Therefore, the active electrode 11a can be moved to a position where the power transmission efficiency is high by moving the movable plate 43 in the direction of the arrow. Note that the moving mechanism is not limited to the same configuration as in the first embodiment, and the active electrode 11a of the power transmission device 1 and the active electrode 21a of the power reception device 2 are moved by moving the active electrode 11a of the power transmission device 1. There is no particular limitation as long as the relative position can be changed.

  Moreover, it is preferable that the passive electrode 11p of the power transmission device 1 is larger than the active electrode 11a of the power transmission device 1. Furthermore, it is preferable that the passive electrode 21p of the power receiving device 2 is larger than the active electrode 21a of the power receiving device 2. Since the passive electrode 11p is larger than the active electrode 11a, the voltage generated by the AC generation circuit 12 and the step-up transformer 13 becomes higher than the passive electrode 11p at the active electrode 11a, and a strong electric field is generated around the active electrode 11a. . By bringing the active electrode 11a of the power transmitting device 1 and the active electrode 21a of the power receiving device 2 close to each other in this state, a strong electric field can be formed between both electrodes, and power can be transmitted with high efficiency. Moreover, since the passive electrodes 11p and 21p were enlarged, the coupling capacity between the passive electrode 11p of the power transmission device 1 and the passive electrode 21p of the power reception device 2 can be increased, and power can be transmitted with high efficiency.

  As described above, according to the third embodiment, by bringing the active electrodes of the power transmitting device 1 and the power receiving device 2 close to each other, a strong electric field is formed between both electrodes, and power can be transmitted with high efficiency. It becomes possible.

(Embodiment 4)
The configurations of the power transmission device 1 and the power receiving device 2 of the power transmission system according to the fourth embodiment are basically the same as those of the first to third embodiments, and thus detailed description thereof is omitted by attaching the same reference numerals. To do. The fourth embodiment is different from the first to third embodiments in that the flat plate portion provided with the active electrode 11a and the passive electrode 11p of the power transmission device 1 can be folded according to the size of the power receiving device 2. .

  FIGS. 13 and 14 are schematic diagrams showing a state where power receiving device 2 is placed on power transmitting device 1 of the power transmission system according to Embodiment 4 of the present invention. In the example of FIGS. 13 and 14, the vertical direction of the drawings indicates the vertical direction (Z-axis direction), and shows a state where the power transmission device 1 is placed upright.

  As shown in the perspective views of FIGS. 13A and 14A and the right side views of FIGS. 13B and 14B, the power transmission device 1 includes an active electrode 11a and a passive electrode 11p. The flat plate part 20 comprised by a certain 1st division | segmentation flat plate part 131 and the 2nd division | segmentation flat plate part 132 is provided, and the 1st division | segmentation flat plate part 131 and the 2nd division | segmentation flat plate part 132 are hinges etc. The rotation mechanism 133 is connected to be rotatable. The support portion 111 that supports the power receiving device 2 is provided at the lower end of the flat plate portion 20 in the Z-axis direction. In addition, the 1st division | segmentation flat plate part 131 can be rotated by the rotation mechanism 133 by making an X-axis direction into a rotating shaft.

  FIG. 13 shows a state in which the flat plate portion 20 is folded and the first divided flat plate portion 131 is overlapped with the second divided flat plate portion 132 and closed. In this case, since the second passive electrode 11p and the second active electrode 11a are provided on the first divided flat plate portion 131, the second passive electrode 11p and the second passive electrode 11p of the power transmission device 1 are folded and closed. It is preferable that the distance from the support part 111 of the active electrode 11a substantially coincides with the distance from the support part 111 of the first active electrode 21a and the first passive electrode 21p of the power receiving device 2. As described above, when the flat plate portion 20 is folded and the first divided flat plate portion 131 is overlapped with the second divided flat plate portion 132 and closed, the power can be efficiently transmitted to the relatively small power receiving device 2. Can do.

  On the other hand, FIG. 14 shows a state where the flat plate portion 20 is opened upward in the Z-axis direction, and the first divided flat plate portion 131 in a state of being overlapped and closed on the second divided flat plate portion 132 is opened. In this case, since the second passive electrode 11p and the second active electrode 11a are provided on the first divided flat plate portion 131, the second passive electrode 11p and the second active electrode of the power transmission device 1 in an open state. It is preferable that the distance from the support part 111 of 11a substantially corresponds to the distance from the support part 111 of the first active electrode 21a and the first passive electrode 21p of the power receiving device 2. As described above, in the state where the first divided flat plate portion 131 that is overlapped and closed on the second divided flat plate portion 132 is opened, power can be efficiently transmitted to the relatively large power receiving device 2.

  The first divided flat plate portion 131 and the second divided flat plate portion 132 are not limited to being connected by a rotation mechanism 133 such as a hinge. For example, a rotation axis is provided in the Y axis direction, You may connect so that it can rotate on a ZX plane centering | focusing on a rotating shaft. FIG. 15 is a schematic diagram illustrating another state in which the power receiving device 2 is mounted on the power transmitting device 1 of the power transmission system according to the fourth embodiment of the present invention. In the example of FIG. 15, the vertical direction of the drawing indicates the vertical direction (Z-axis direction), and shows a state where the power transmission device 1 is placed upright. Further, for easy understanding of the structure, the first divided flat plate portion 131 and the second divided flat plate portion 132 are separated as shown in the perspective view of FIG.

  As shown in FIG. 15A, a columnar protrusion 135 that protrudes in the vicinity of the lower end of the first divided flat plate portion 131 is inserted in the vicinity of the upper end of the second divided flat plate portion 132. A possible opening 136 is provided. By inserting the protruding portion 135 into the opening 136, the first divided flat plate portion 131 and the second divided flat plate portion 132 can rotate around the protruding portion 135 on the ZX plane. It is connected. That is, the first divided flat plate portion 131 can be overlapped with the second divided flat plate portion 132 and closed, or the first divided flat plate portion 132 can be overlapped with the second divided flat plate portion 132 and closed. The flat plate portion 131 can be opened.

  As shown in FIG. 15B, the projection 135 of the first divided flat plate portion 131 is inserted into the opening 136 of the second divided flat plate portion 132, and the first divided flat plate portion 131 and the second divided flat plate portion 131 are inserted. The first divided flat plate portion 131 is rotated so that the flat plate portion 132 does not overlap, that is, a part of the lower end of the first divided flat plate portion 131 overlaps a part of the upper end of the second divided flat plate portion 132. In this way, in a state where the first divided flat plate portion 131 and the second divided flat plate portion 132 do not completely overlap, the second active electrode 11a and the second passive electrode 11p of the first divided flat plate portion 131 are not. Since the distance from the support part 111 is substantially the same as the distance from the support part 111 of the first active electrode 21a and the first passive electrode 21p of the power receiving apparatus 2, the power receiving apparatus 2 is relatively large. Power can be transmitted efficiently.

  Of course, the first divided flat plate portion 131 is rotated 180 degrees around the rotation axis of the projection 135 from the position of FIG. 15B so that the first divided flat plate portion 131 and the second divided flat plate portion 132 overlap. Also good. In this case, the distance from the support part 111 of the 2nd active electrode 11a of the 1st division | segmentation flat plate part 131 and the 2nd passive electrode 11p is the 1st active electrode 21a of the power receiving apparatus 2, and the 1st passive electrode. By substantially matching the distance from the support portion 111 of 21p, it is possible to efficiently transmit power even to a relatively small power receiving device 2.

  In FIG. 15, the second divided flat plate portion 132 is also provided with the second passive electrode 11p, but is not particularly limited, and may or may not be provided. When the 2nd division | segmentation flat plate part 132 is equipped with the 2nd passive electrode 11p, position alignment of an electrode is easier and electric power transmission can be carried out with higher efficiency.

  As described above, according to the fourth embodiment, the second active electrode 11a of the power transmitting device 1 and the first active electrode 21a of the power receiving device 2 overlap, and the first divided flat plate portion 131 is replaced with the second divided flat plate portion 131. Since the first divided flat plate portion 131 in the state of being overlapped and closed with the divided flat plate portion 132 or the closed state of being overlapped with the second divided flat plate portion 132 can be opened, one power transmission device Therefore, it is possible to cope with the power receiving apparatuses 2 having different sizes.

  In addition, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications and substitutions are possible within the scope of the gist of the present invention. For example, the active electrode 11a and the passive electrode 11p of the power transmission device 1 do not have to be asymmetrical shapes, and may have the same size and the same shape. Similarly, the active electrode 21a and the passive electrode 21p of the power receiving device 2 do not need to be asymmetrical, and may have the same size and the same shape.

DESCRIPTION OF SYMBOLS 1 Power transmission apparatus 2 Power receiving apparatus 11, 104 Coupled electrode (2nd coupled electrode)
11a Active electrode (second active electrode)
11p passive electrode (second passive electrode)
21, 201 Combined electrode (first coupled electrode)
21a Active electrode (first active electrode)
21p passive electrode (first passive electrode)
111 support portions 113 lateral support portions 131 first divided flat plate portions 132 second divided flat plate portions

Claims (14)

In a power transmission device having a second coupling electrode that transmits power in a contactless manner to a power receiving device having a first coupling electrode for coupling to each other via an electrostatic field,
E Bei the second coupling electrode, the moving mechanism capable of moving according to the position of the first coupling electrode is disposed,
The first coupling electrode is composed of a first passive electrode and a first active electrode having a higher voltage than the first passive electrode,
The second coupling electrode is composed of a second passive electrode and a second active electrode having a higher voltage than the second passive electrode,
The moving mechanism is configured such that at least one of the second active electrode and the second passive electrode can move along a direction connecting the centers of the second active electrode and the second passive electrode. ,
The power transmission device , wherein the second active electrode has a size including the first active electrode, and the second passive electrode has a size including the first passive electrode . In a power transmission device having a second coupling electrode that transmits power in a non-contact manner to a power receiving device having a first coupling electrode for coupling to each other via an electrostatic field,
A moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed;
The first coupling electrode is composed of a first passive electrode and a first active electrode having a higher voltage than the first passive electrode,
The second coupling electrode is composed of a second passive electrode and a second active electrode having a higher voltage than the second passive electrode,
The moving mechanism is configured such that at least one of the second active electrode and the second passive electrode can move along a direction connecting the centers of the second active electrode and the second passive electrode. ,
Wherein the first active electrode is the size including the second active electrode, said first passive electrode feeding collectors you being a size encompassing the second passive electrode . Said second active electrode Yes fixed, the power transmission device according to claim 1 or 2, characterized in that said second passive electrode is movable. The power transmission apparatus according to claim 1 or 2 , wherein the second passive electrode is fixed, and the second active electrode is movable. A support portion for supporting the power receiving device, the power transmission apparatus, according to claim 1, wherein Rukoto provided on either end of the direction connecting the center of the second active electrode and the second passive electrode The power transmission device according to any one of the above. Claim 1, wherein the lateral supports for supporting the side portions of the power receiving device, along a direction connecting a center of the second active electrode and the second passive electrode, characterized by Rukoto provided in the power transmitting device The power transmission apparatus as described in any one of thru | or 5. In a power transmission device having a second coupling electrode that transmits power in a non-contact manner to a power receiving device having a first coupling electrode for coupling to each other via an electrostatic field,
A moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed;
The first coupling electrode is composed of a first active electrode and a third active electrode having a voltage equivalent to that of the first active electrode,
The second coupling electrode is composed of a second active electrode and a fourth active electrode having the same voltage as the second active electrode,
The moving mechanism is configured such that at least one of the second active electrode and the fourth active electrode can move along a direction connecting the centers of the second active electrode and the fourth active electrode. ,
Said second active electrode is the size including the first active electrode, said fourth active electrode feed you said magnitude der Rukoto including the third active electrode collector apparatus. In a power transmission device having a second coupling electrode that transmits power in a non-contact manner to a power receiving device having a first coupling electrode for coupling to each other via an electrostatic field,
A moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed;
The first coupling electrode is composed of a first active electrode and a third active electrode having a voltage equivalent to that of the first active electrode,
The second coupling electrode is composed of a second active electrode and a fourth active electrode having the same voltage as the second active electrode,
The moving mechanism is configured such that at least one of the second active electrode and the fourth active electrode can move along a direction connecting the centers of the second active electrode and the fourth active electrode. ,
Wherein the first active electrode is the size including the second active electrode, electrostatic the third active electrode feed you said magnitude der Rukoto including the fourth active electrode apparatus. In a power transmission device having a second coupling electrode that transmits power in a non-contact manner to a power receiving device having a first coupling electrode for coupling to each other via an electrostatic field,
A moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed;
Before Stories second coupling electrode, Yes constituted by a second passive electrode and the second active electrode is a high voltage from said second passive electrode,
A support portion for supporting the power receiving device is provided at a lower end of a flat plate portion on which the second active electrode and the second passive electrode are provided,
The flat plate portion has a connected first divided flat plate portion and a second divided flat plate portion,
When the power receiving device is mounted, the second active electrode and the first active electrode overlap, and the first divided flat plate portion is overlapped with the second divided flat plate portion and closed, or second feeding collectors you characterized by dividing superimposed on the flat plate portion are in a state in which opening the first division plate portion in the closed position. A power receiving device having a first coupling electrode for coupling to each other via an electrostatic field; and a power transmission device having a second coupling electrode, wherein the power is transmitted from the power transmission device to the power receiving device in a contactless manner. In the power transmission system to transmit,
The power transmission device includes a moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed,
The first coupling electrode is composed of a first passive electrode and a first active electrode having a higher voltage than the first passive electrode,
The second coupling electrode is composed of a second passive electrode and a second active electrode having a higher voltage than the second passive electrode,
The moving mechanism is configured such that at least one of the second active electrode and the second passive electrode can move along a direction connecting the centers of the second active electrode and the second passive electrode. ,
Said second active electrode is the size including the first active electrode, the second passive electrode power transmission system, wherein the magnitude der Rukoto encompasses the first passive electrode . A power receiving device having a first coupling electrode for coupling to each other via an electrostatic field; and a power transmission device having a second coupling electrode, wherein the power is transmitted from the power transmission device to the power receiving device in a contactless manner. In the power transmission system to transmit,
The power transmitting device, Bei example the second coupling electrode, the moving mechanism capable of moving according to the position of the first coupling electrode is disposed,
The first coupling electrode is composed of a first passive electrode and a first active electrode having a higher voltage than the first passive electrode,
The second coupling electrode is composed of a second passive electrode and a second active electrode having a higher voltage than the second passive electrode,
The moving mechanism is configured such that at least one of the second active electrode and the second passive electrode can move along a direction connecting the centers of the second active electrode and the second passive electrode. ,
Wherein the first active electrode is the size including the second active electrode, said first passive electrode power transmission system, wherein the magnitude der Rukoto encompasses the second passive electrode . A power receiving device having a first coupling electrode for coupling to each other via an electrostatic field; and a power transmission device having a second coupling electrode, wherein the power is transmitted from the power transmission device to the power receiving device in a contactless manner. In the power transmission system to transmit,
The power transmission device includes a moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed,
The first coupling electrode is composed of a first active electrode and a third active electrode having a voltage equivalent to that of the first active electrode,
The second coupling electrode, Yes constituted by the second active electrode and the fourth active electrode is said second active electrode and the same voltage,
The moving mechanism, the second one at least one of the active electrode and the fourth active electrode, and movable along the direction connecting the center of the second active electrode and the fourth active electrode Thea The
Said second active electrode is the size including the first active electrode, said fourth active electrode you characterized power to be a size including the third active electrode transmission system. A power receiving device having a first coupling electrode for coupling to each other via an electrostatic field; and a power transmission device having a second coupling electrode, wherein the power is transmitted from the power transmission device to the power receiving device in a contactless manner. In the power transmission system to transmit,
The power transmission device includes a moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed,
It said first coupling electrode is Yes constituted by a first active electrode and a third active electrode said is an active electrode and the like voltages,
The second coupling electrode, Yes constituted by the second active electrode and the fourth active electrode is said second active electrode and the same voltage,
The moving mechanism is configured such that at least one of the second active electrode and the fourth active electrode is movable along a direction connecting the centers of the second active electrode and the fourth active electrode. The
Said first active electrode is the size including the second active electrode, the third active electrode power you said magnitude der Rukoto including the fourth active electrode Transmission system. A power receiving device having a first coupling electrode for coupling to each other via an electrostatic field; and a power transmission device having a second coupling electrode, wherein the power is transmitted from the power transmission device to the power receiving device in a contactless manner. In the power transmission system to transmit,
The power transmission device includes a moving mechanism capable of moving the second coupling electrode according to a position where the first coupling electrode is disposed,
The second coupling electrode is composed of a second passive electrode and a second active electrode having a higher voltage than the second passive electrode,
A support portion for supporting the power receiving device is provided at a lower end of a flat plate portion on which the second active electrode and the second passive electrode are provided,
The flat plate portion has a connected first divided flat plate portion and a second divided flat plate portion,
When the power receiving device is mounted on the power transmission device, the second active electrode and the first active electrode overlap, and the first divided flat plate portion is overlapped with the second divided flat plate portion and closed. state or the second power transmission system that is characterized in that division superimposed on the flat plate portion are in a state in which opening the first division plate portion in the closed position of.

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