JP6292364B1 - Non-contact power supply system, power transmission equipment, and power receiving equipment - Google Patents

Abstract

The non-contact power supply system includes a power transmission circuit that transmits power by non-contact power supply, a power reception circuit that receives power transmitted from the power transmission circuit, and an airtight sheet provided to cover a power transmission surface of the power transmission circuit. The power transmission circuit is provided in an airtight space formed by the airtight sheet, and the airtight sheet is made of a material having flexibility and waterproofness, and has a predetermined outer shape by the internal pressure of the gas filled in the airtight space. Maintained. The non-contact power supply system includes an airtight sheet provided so as to cover the power receiving surface of the power receiving circuit, and the power receiving circuit is provided in an airtight space formed by the airtight sheet. The airtight sheet is flexible and waterproof. And is maintained in a predetermined outer shape by the internal pressure of the gas filled in the airtight space.

Description

  The present invention relates to a contactless power supply system, a power transmission facility, and a power reception facility.

  Patent Document 1 describes a non-contact power feeding system that includes a power feeding coil provided on the ground and a power receiving coil positioned above the power feeding coil and supplies power from the power feeding coil to the power receiving coil by non-contact power feeding. ing. The non-contact power supply system is provided so as to cover the power supply coil, and includes a flexible cover that occupies the space between the power supply coil and the power reception coil by being inflated. The space between the power feeding coil and the power receiving coil is occupied through a specific shape that can exclude foreign substances existing in the wire.

 Patent Document 2 describes a non-contact power supply system that appropriately cools a coil that generates heat due to non-contact power supply in water. In the non-contact power feeding system, a power receiving side pad including a power receiving coil of a power receiving device provided in an underwater moving body and a power transmitting side pad including a power transmitting coil of a power transmitting device are provided to face each other via a liquid. Non-contact power feeding is performed using magnetic coupling with the coil. A spacer member having a gap for forming a liquid flow is provided between the power reception side pad and the power transmission side pad.

JP 2014-73040 A Japanese Patent Laying-Open No. 2016-10229

  For example, when power is transmitted between two ships by non-contact power feeding, it is necessary to bring the power transmission coil of the power transmission circuit and the power reception coil of the power reception circuit close to the surface of the water or in the water. Sufficient waterproofness is required for the coil. Also, when bringing the power transmission coil and the power reception coil close, it is necessary to take some safety measures to prevent accidents such as damage due to contact.

  The present invention has been made based on such a viewpoint, and an object thereof is to provide a non-contact power feeding system, a power transmission facility, and a power receiving facility which are waterproof and can safely perform non-contact power feeding.

  One of the present invention for achieving the above object is a non-contact power feeding system, a power transmission circuit for transmitting power by non-contact power feeding, a power receiving circuit for receiving power transmitted from the power transmission circuit, An airtight sheet provided to cover the power transmission surface of the power transmission circuit, the power transmission circuit is provided in the airtight space formed by the airtight sheet, and the airtight sheet is flexible and waterproof. It is made of a material having a predetermined outer shape by the internal pressure of the gas filled in the airtight space.

  According to the present invention, since the power transmission circuit is provided in an airtight space formed by an airtight sheet made of a material having flexibility and waterproofness, sufficient waterproofness can be ensured with a simple configuration. . Further, the airtight sheet is maintained in a predetermined outer shape by the internal pressure of the gas filled in the airtight space, and when the power transmission part of the power transmission circuit is brought close to the power reception part of the power reception circuit during non-contact power feeding, In addition, a flexible airtight sheet expanded by internal pressure is interposed as a buffer, and accidents such as damage due to contact can be prevented and safe non-contact power feeding can be performed.

  Another aspect of the present invention is the contactless power feeding system, wherein the airtight sheet has a curvature of a predetermined region facing the power transmission surface of the power transmission circuit in a state where the airtight sheet is maintained in the predetermined outer shape. It is assumed that the curvature is smaller than the curvature around the predetermined area.

  According to the present invention, the power transmission circuit and the power reception circuit can be disposed at close positions (for example, the power transmission coil and the power reception coil) at the time of the non-contact power feeding, and the non-contact power feeding can be performed efficiently.

  Another aspect of the present invention is the contactless power supply system, wherein the power transmission circuit includes a power transmission coil that configures a power transmission side resonance circuit, and the power transmission surface is a power transmission surface of the power transmission coil. To do.

  Another aspect of the present invention is the above contactless power supply system, wherein a power transmission circuit that transmits power by contactless power supply, a power reception circuit that receives power transmitted from the power transmission circuit, and the power reception circuit An airtight sheet provided so as to cover the power receiving surface, and the power receiving circuit is provided in the airtight space formed by the airtight sheet, and the airtight sheet is made of a material having flexibility and waterproofness. The predetermined outer shape is maintained by the internal pressure of the gas filled in the airtight space.

  According to the present invention, since the power receiving circuit is provided in an airtight space formed by an airtight sheet made of a material having flexibility and waterproofness, waterproofness can be reliably ensured while having a simple configuration. . The airtight sheet is maintained in a predetermined outer shape by the internal pressure of the gas filled in the airtight space, and when the power transmission part of the power transmission circuit is brought close to the power reception part of the power reception circuit during non-contact power supply, the internal pressure between the two The flexible air-tight sheet expanded by the step is interposed as a buffer, and non-contact power feeding can be performed safely.

  Another aspect of the present invention is the contactless power feeding system, wherein the airtight sheet has a curvature of a predetermined region facing the power receiving surface of the power receiving circuit in a state where the airtight sheet is maintained in the predetermined outer shape. It is assumed that the curvature is smaller than the curvature around the predetermined area.

  According to the present invention, a power transmission circuit and a power reception circuit (for example, a power transmission coil and a power reception coil) can be disposed at close positions during non-contact power feeding, and non-contact power feeding can be performed efficiently.

  Another aspect of the present invention is the contactless power feeding system, wherein the power receiving circuit includes a power receiving coil that forms a power receiving side resonance circuit, and the power receiving surface is a power receiving surface of the power receiving coil.

  Another aspect of the present invention is the non-contact power feeding system, wherein the airtight sheet is provided to project outside the ship at a predetermined position on a side surface of the ship.

  According to the present invention, for example, an airtight sheet can be easily provided at a predetermined position on a side surface of a ship by retrofitting. For example, a mechanism of a non-contact power feeding system having both waterproofness and safety can be easily applied to an existing ship. Can be introduced.

  Another aspect of the present invention is the non-contact power feeding system, wherein the airtight sheet is provided in the ship so that a part of a surface thereof constitutes a part of a side surface of the ship.

  Thus, the airtight sheet can be provided in the ship. In addition, in this way, by providing the airtight sheet in the ship so that a part of the surface thereof constitutes a part of the side surface of the ship, it is possible to efficiently perform non-contact power feeding with other ships. it can.

  Another aspect of the present invention is the contactless power feeding system, wherein the airtight sheet is made of a resin or rubber having flexibility and waterproofness.

  Another aspect of the present invention is the contactless power supply system, wherein the airtight sheet has a gas injection valve for injecting gas into the airtight space.

  In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

  ADVANTAGE OF THE INVENTION According to this invention, the non-contact electric power feeding system which is waterproof and can perform non-contact electric power feeding safely is realizable.

It is a figure showing the schematic structure of the non-contact electric supply system of a 1st embodiment. It is a figure which shows the structure of the electrical part of power transmission equipment. It is a figure which shows the structure of the electrical part of a receiving device. It is a figure which shows a mode that gas is inject | poured into the airtight space of an airtight sheet | seat. It is a figure which shows schematic structure of the non-contact electric power feeding system of 2nd Embodiment.

  Hereinafter, embodiments will be described with reference to the drawings.

[First Embodiment]
FIG. 1 shows a schematic configuration of a non-contact power feeding system 1 shown as the first embodiment. The non-contact power supply system 1 includes a power transmission facility 20 provided in a ship 2A that transmits power and a power reception facility 30 provided in a ship 2B that receives power. In the following description, the ship 2A and the ship 2B are collectively referred to as the ship 2 as appropriate.

  The ship 2 is, for example, a large ship (tanker, ship, large passenger ship, large cargo ship, large fishing ship, etc.), a small ship (boat, yacht, anchor, small cargo ship, small fishing ship, etc.). The type is not limited. Further, the ship 2A and the ship 2B may be the same type of ship or different types of ships. Further, the ship 2A or the ship 2B is merely an example used on or in water, and the ship 2 may be other than the ship 2 such as a quay, a barge, a culture shelf, and the like.

  FIG. 2 shows a configuration of an electrical part of the power transmission facility 20. As shown in the figure, the power transmission facility 20 includes a power supply device 5 and a power transmission circuit 21.

  The power transmission circuit 21 includes a power transmission coil 211, a power transmission capacitor 212, and a control circuit 213. The power transmission coil 211 is obtained by winding a conductor wire such as a copper wire a predetermined number of times around a predetermined center point or winding axis, for example, a loop shape (circular, rectangular, concentric, etc.) Appearance shape such as spiral (including the case where the cross section is rectangular) is exhibited. The power transmission coil 211 and the power transmission capacitor 212 constitute a resonance circuit on the power transmission side. The control circuit 213 includes a processor (such as a microcomputer) and a driver circuit (such as a gate driver and a half bridge driver), and generates a drive current having a predetermined frequency supplied to the power transmission coil 211 based on the power supplied from the power supply device 5. Generate.

  FIG. 3 shows the configuration of the electrical part of the power receiving facility 30. As shown in the figure, the power receiving facility 30 includes a power receiving circuit 31, a charge / discharge control circuit 32, a storage battery 33, and a load 51. The power receiving circuit 31 includes a power receiving coil 311, a power receiving capacitor 312, and a rectifier circuit 313.

  The power receiving coil 311 is obtained by winding a conductor wire such as a copper wire a predetermined number of times around a predetermined center point or winding axis, for example, a loop shape (circular shape, rectangular shape, concentric circular shape, etc.) Appearance shape such as spiral (including the case where the cross section is rectangular) is exhibited. The power receiving coil 311 and the power receiving capacitor 312 constitute a power receiving side resonance circuit.

  The rectifying circuit 313 converts (rectifies) the AC power received by the power receiving circuit 31 into DC power and supplies the DC power to the storage battery 33.

  The charge / discharge control circuit 32 includes a processor (such as a microcomputer), a voltage sensor that measures a voltage between terminals of the storage battery 33, a current sensor that measures a current input to or output from the storage battery 33, and the like. The charge / discharge state (remaining amount of the storage battery 33, etc.) is monitored and the charge / discharge of the storage battery 33 is controlled.

  The storage battery 33 is, for example, a lithium ion secondary battery, a lithium polymer secondary battery, a lead storage battery, a nickel hydride battery, or a nickel cadmium battery. The electric power stored in the storage battery 33 is appropriately supplied to the load 51.

  The load 51 is, for example, various electric devices (navigation facilities, lighting, work machines, work robots, etc.) provided in the ship 2. For example, when the ship 2 is an electric ship, the load 51 includes a motor or the like. A power unit is also included. When the load 51 is an AC load, for example, a boost chopper or an inverter is provided between the storage battery 33 and the load 51 as appropriate.

  Returning to FIG. 1, the power transmission circuit 21 is provided at a predetermined height position on the side surface 71 </ b> A of the ship 2 </ b> A, and the airtight sheet 11 </ b> A protruding outside the side surface 71 </ b> A is provided so as to cover the power transmission surface of the power transmission circuit 21. . The power transmission surface of the power transmission circuit 21 is, for example, the power transmission surface of the power transmission coil 211 (for example, a surface perpendicular to the winding axis of the conducting wire of the power transmission coil 211).

  The airtight sheet 11A forms an airtight space 111A together with the side surface 71A, and the power transmission circuit 21 is provided in the airtight space 111A. Of the configuration of the power transmission circuit 21, the power transmission capacitor 212 and the control circuit 213 may be provided inside the airtight space 111A or outside the airtight space 111A. In this embodiment, it is assumed that at least the power transmission coil 211 is provided in the airtight space 111A. The control circuit 213, the power transmission capacitor 212, and the power supply device 5 may be provided, for example, on the deck 13A or the inboard 14A of the ship 2A.

  The wiring 6 that electrically connects the configuration provided inside the airtight sheet 11A and the configuration provided outside the airtight sheet 11A is provided, for example, along the side surface 71A of the ship 2A. The wiring 6 is provided so as not to affect the airtightness of the airtight space 111A. For example, a part of the wiring 6 is constituted by a flat cable drawn from the inside of the airtight space 111A to the outside of the airtight space 111A through the bottom portion of the airtight sheet 11A. Further, for example, a part of the wiring 6 is constituted by a conductor having one end exposed in the airtight space 111A and the other end exposed outside the airtight space 111A. Further, for example, a part of the wiring 6 is constituted by a conductor having one end exposed in the airtight space 111A and the other end exposed inside the ship 2A.

  As shown in FIG. 1, a power receiving circuit 31 is provided at a predetermined height position on the side surface 71B of the ship 2B, and an airtight sheet 11B protruding outside the side surface 71B is provided so as to cover the power receiving surface of the power receiving circuit 31. It has been. The power receiving surface of the power receiving circuit 31 is, for example, the power receiving surface of the power receiving coil 311 (for example, a surface perpendicular to the winding axis of the conducting wire of the power receiving coil 311).

  The airtight sheet 11B forms an airtight space 111B together with the side surface 71B, and the power receiving circuit 31 is provided in the airtight space 111B. Of the configuration of the power receiving circuit 31, the power receiving capacitor 312, the rectifier circuit 313, and the charge / discharge control circuit 32 may be provided inside the airtight space 111B or outside the airtight space 111B. In the present embodiment, it is assumed that at least the power receiving coil 311 is provided in the airtight space 111B. The charge / discharge control circuit 32, the power receiving capacitor 312 and the rectifier circuit 313 may be provided, for example, on the deck 13B or inboard 14B of the ship 2B.

  The wiring 7 that electrically connects the configuration provided inside the hermetic sheet 11B and the configuration provided outside the hermetic sheet 11B is provided, for example, along the side surface 71B of the ship 2B. The wiring 7 is provided so as not to affect the airtightness of the airtight space 111B. For example, a part of the wiring 7 is constituted by a flat cable drawn out from the inside of the airtight space 111B to the outside of the airtight space 111B via the hem portion of the airtight sheet 11B. Further, for example, a part of the wiring 7 is constituted by a conductor having one end exposed in the airtight space 111B of the airtight sheet 11B and the other end exposed outside the airtight space 111B. Further, for example, a part of the wiring 7 is constituted by a conductor having one end exposed in the airtight space 111B and the other end exposed inside the ship 2B.

[Airtight sheet]
The airtight sheet 11A is configured using a material (resin, rubber, or the like) that has a small amount of attenuation of power transmitted by non-contact power feeding (small shielding effect) and is excellent in flexibility and waterproofness. The airtight sheet 11A includes one or more gas sealing valves 12A. The airtight space 111A is filled with a gas such as air or an inert gas via the gas sealing valve 12A. The outer shape of the airtight sheet 11A is maintained by the internal pressure of the gas filled in the airtight space 111A. The space between the hem portion of the airtight sheet 11A and the side surface 71A of the ship 2A is securely sealed so that the gas filled in the airtight space 111A does not leak to the outside.

  The airtight sheet 11B is configured using a material (resin, rubber, or the like) that has a small amount of attenuation of power transmitted by non-contact power feeding (small shielding effect) and is excellent in flexibility and waterproofness. The airtight sheet 11B includes one or more gas sealing valves 12B. The airtight space 111B is filled with a gas such as air or an inert gas via the gas sealing valve 12B. The outer shape of the airtight sheet 11B is maintained by the internal pressure of the gas filled in the airtight space 111B. The space between the hem portion of the airtight sheet 11B and the side surface 71B of the ship 2B is securely sealed so that the gas filled in the airtight space 111B does not leak outside.

  In FIG. 4, the gas filling device 8 </ b> A (gas filling pump or the like) enters the airtight space 111 </ b> A via the gas feeding pipe 9 </ b> A and the gas sealing valve 12 </ b> A, and the gas filling device 8 </ b> B (gas filling pump or the like) A state is shown in which gas is injected into the airtight space 111B via the sealing valve 12B. The gas filling into the airtight space 111A and the airtight space 111B is performed, for example, from the respective decks 13A and 13B of the ships 2A and 2B and the insides 14A and 14B (for example, through the through holes provided in the side surfaces 71A and 71B). For example, it may be performed from a gas filling device provided on another ship, a quay, or the like. In addition, a sensor for measuring the internal pressure of the airtight space 111A and the airtight space 111B in real time is provided so that when the internal pressure falls below a predetermined threshold, gas is automatically injected from the gas filling device into the airtight space 111A and the airtight space 111B. Also good.

  The airtight sheet 11A and the airtight sheet 11B inject gas into each of the airtight spaces 111A and 111B to keep the inside of each of the airtight spaces 111A and 111B at a predetermined internal pressure threshold value or more, thereby transmitting from the power transmission circuit 21 to the power reception circuit 31. The outer shape is maintained so that the power transmission by the non-contact power feeding is efficiently performed. The outer shape is, for example, a shape in which the overlapping area of the power transmission surface of the power transmission coil 221 and the power reception surface of the power reception coil 311 is as large as possible (for example, the magnetic flux output from the power transmission surface is as much as possible). It is a shape that often enters the power receiving surface).

  In the case of the present embodiment, the airtight sheet 11A and the airtight sheet 11B are substantially hemispherical as a whole by injecting gas into the respective airtight spaces 111A and 111B and keeping the interior at a predetermined internal pressure or higher. The outer shape is maintained such that the curvature of the predetermined area facing the power transmission surface of the power transmission coil 221 and the power reception surface of the power reception coil 311 is smaller than the curvature around the predetermined area. For this reason, when the ship 2A and the ship 2B are brought close to each other and the airtight sheet 11A and the airtight sheet 11B are brought close to each other, the power transmission surface of the power transmission coil 211 and the power reception surface of the power reception coil 311 are maintained parallel to each other. It can be made to approach to a short distance, and non-contact electric power feeding can be performed efficiently. In order to avoid the concentration of stress, the airtight sheet 11A and the airtight sheet 11B are configured so that corner portions are not formed (or the corner portions are reduced as much as possible) when maintaining the predetermined outer shape. It is preferable.

[Second Embodiment]
FIG. 5 shows a schematic configuration of the non-contact power feeding system 1 shown as the second embodiment. The non-contact electric power feeding system 1 of 2nd Embodiment differs in the structure of 11 A of airtight sheets, and the airtight sheet | seat 11B from 1st Embodiment. The other configuration of the non-contact power feeding system 1 shown as the second embodiment is basically the same as the configuration of the first embodiment.

  The airtight sheet 11A of the second embodiment is provided at a predetermined height position on the side surface 71A of the ship 2A. The airtight sheet 11A of the second embodiment uses a material (resin, rubber, etc.) that has a small amount of attenuation of power transmitted by non-contact power feeding (small shielding effect) and is excellent in flexibility and waterproofness. It is configured.

  As shown in the drawing, the airtight sheet 11A of the second embodiment protrudes from the side surface 71A to the outside of the ship as opposed to the airtight sheet 11A of the first embodiment, but protrudes into the ship. A part of the surface of the airtight sheet 11A constitutes a part of the side surface 71A of the ship 2A. In this way, since a part of the surface of the airtight sheet 11A constitutes a part of the side surface 71A of the ship 2A, power is transmitted by non-contact power supply like the side surface 71A of the ship 2A made of a steel plate or the like. The power that is generated is not greatly attenuated. The boundary between the airtight sheet 11A and the side surface 71A is securely sealed (sealed) so that water does not enter the ship from the outside.

  The airtight sheet 11A of the second embodiment includes one or more gas sealing valves 12A at predetermined positions. The outer shape of the airtight sheet 11A is maintained by the internal pressure of the gas filled in the airtight space 111A. The airtight space 111A of the airtight sheet 11A is filled with a gas such as air or an inert gas from a gas filling device 8A provided in the inboard 14A, for example, via the air supply pipe 9A and the gas sealing valve 12A.

  The airtight sheet 11B of the second embodiment is provided at a predetermined height position on the side surface 71B of the ship 2B. The hermetic sheet 11B of the second embodiment uses a material (resin, rubber, etc.) that has a small amount of attenuation of power transmitted by non-contact power feeding (small shielding effect) and is excellent in flexibility and waterproofness. It is configured.

  As shown in the figure, the airtight sheet 11B of the second embodiment protrudes from the side surface 71B to the outside of the ship instead of protruding from the side surface 71B like the airtight sheet 11B of the first embodiment. A part of the surface of the airtight sheet 11B constitutes a part of the side surface 71B of the ship 2B. In this way, since a part of the surface of the airtight sheet 11B constitutes a part of the side surface 71B of the ship 2B, power is transmitted by non-contact power supply like the side surface 71B of the ship 2B made of a steel plate or the like. The power that is generated is not greatly attenuated. The boundary portion between the airtight sheet 11B and the side surface 71B is securely sealed (sealed) so that water does not enter the ship from the outside.

  The hermetic sheet 11B of the second embodiment includes one or more gas sealing valves 12B at predetermined positions. The outer shape of the airtight sheet 11B is maintained by the internal pressure of the gas filled in the airtight space 111B. An airtight space 111B of the airtight sheet 11B is filled with a gas such as air or an inert gas from a gas filling device 8B provided in the ship 14B, for example, via an air supply pipe 9B and a gas sealing valve 12B.

[effect]
As described above, in the contactless power feeding system 1 of the first embodiment and the second embodiment, the power transmission circuit 21 is formed by the airtight sheet 11A made of a material having flexibility and waterproofness. The airtight sheet 11A provided in the airtight space 111A is maintained in a predetermined outer shape by the internal pressure of the gas filled in the airtight space 111A. For this reason, when the power transmission coil 211 of the power transmission circuit 21 is brought close to the power reception coil 311 of the power reception circuit 31 during non-contact power feeding, a flexible airtight sheet 11A that is expanded by internal pressure is interposed between the two as a buffering body, so Contact power feeding can be performed.

  Moreover, in the non-contact electric power feeding system 1 of 1st Embodiment and 2nd Embodiment, the receiving circuit 31 is provided in the airtight space 111B formed of the airtight sheet | seat 11B which consists of a material which has flexibility and waterproofness. The airtight sheet 11B is maintained in a predetermined outer shape by the internal pressure of the gas filled in the airtight space 111B. Therefore, when the power transmission coil 211 of the power transmission circuit 21 is brought close to the power reception coil 311 of the power reception circuit 31 during non-contact power feeding, a flexible airtight sheet 11B that is expanded by the internal pressure is interposed between the two as a buffer, so that the Contact power feeding can be performed.

  By the way, the above description is for facilitating the understanding of the present invention, and does not limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Non-contact electric power feeding system, 2A, 2B Ship, 5 Power supply device, 6 wiring, 7 wiring, 8A, 8B Gas filling device, 11A, 11B Airtight sheet, 111A, 111B, Airtight space, 12A, 12B Gas sealing valve, 13A, 13B Deck, 14A, 14B Inboard, 71A, 71B Side, 20 Power transmission facility, 21 Power transmission circuit, 211 Power transmission coil, 212 Power transmission capacitor, 213 Control circuit, 30 Power reception facility, 31 Power reception circuit, 311 Power reception coil, 312 Power reception capacitor, 313 Rectifier circuit, 33 storage battery, 51 load

Claims (12)

A power transmission circuit for transmitting power by contactless power supply;
A power receiving circuit that receives power transmitted from the power transmitting circuit;
An airtight sheet provided so as to cover the power transmission surface of the power transmission circuit;
With
The power transmission circuit is provided in the gas-tight space that will be formed by the airtight sheet,
The airtight sheet is made of a material having flexibility and waterproofness, and is maintained in a predetermined outer shape by an internal pressure of gas filled in the airtight space ,
The airtight sheet is provided so as to protrude into the vessel of the ship so that a part of the surface thereof constitutes a part of a side surface of the ship.
Contactless power supply system. The contactless power supply system according to claim 1,
In the state where the airtight sheet is maintained in the predetermined outer shape, the curvature of the predetermined area facing the power transmission surface of the power transmission circuit is smaller than the curvature around the predetermined area,
Contactless power supply system. The contactless power supply system according to claim 1,
The power transmission circuit includes a power transmission coil constituting a power transmission side resonance circuit, and the power transmission surface is a power transmission surface of the power transmission coil.
Contactless power supply system. A power transmission circuit for transmitting power by contactless power supply;
A power receiving circuit that receives power transmitted from the power transmitting circuit;
An airtight sheet provided so as to cover the power receiving surface of the power receiving circuit;
With
The power receiving circuit is provided in the gas-tight space that will be formed by the airtight sheet,
The airtight sheet is made of a material having flexibility and waterproofness, and is maintained in a predetermined outer shape by an internal pressure of gas filled in the airtight space ,
The airtight sheet is provided so as to protrude into the vessel of the ship so that a part of the surface thereof constitutes a part of a side surface of the ship.
Contactless power supply system. The contactless power supply system according to claim 4,
In the state where the airtight sheet is maintained in the predetermined outer shape, the curvature of the predetermined area facing the power receiving surface of the power receiving circuit is smaller than the curvature around the predetermined area,
Contactless power supply system. The contactless power supply system according to claim 4,
The power reception circuit includes a power reception coil constituting a power reception side resonance circuit, and the power reception surface is a power reception surface of the power reception coil.
Contactless power supply system. It is a non-contact electric supply system according to any one of claims 1 to 6,
The airtight sheet is made of a resin or rubber having flexibility and waterproofness,
Contactless power supply system. It is a non-contact electric supply system according to any one of claims 1 to 6,
The airtight sheet has a gas injection valve for injecting gas into the airtight space.
Contactless power supply system. It is the power transmission equipment in the non-contact electric power feeding system according to claim 1,
The power transmission circuit provided in an airtight space formed by the airtight sheet;
The airtight sheet made of a material having flexibility and waterproofness, and maintained in a predetermined outer shape by an internal pressure of gas filled in the airtight space;
Equipped with a,
The airtight sheet is provided so as to protrude into the vessel of the ship so that a part of the surface thereof constitutes a part of a side surface of the ship.
Power transmission equipment for contactless power supply systems. The power transmission facility according to claim 9 ,
In the state where the airtight sheet is maintained in the predetermined outer shape, the curvature of the predetermined area facing the power transmission surface of the power transmission circuit is smaller than the curvature around the predetermined area,
Power transmission equipment for contactless power supply systems. A power receiving facility in the non-contact power feeding system according to claim 4,
The power receiving circuit provided in an airtight space formed by the airtight sheet;
The airtight sheet made of a material having flexibility and waterproofness, and maintained in a predetermined outer shape by an internal pressure of gas filled in the airtight space;
Equipped with a,
The airtight sheet is provided so as to protrude into the vessel of the ship so that a part of the surface thereof constitutes a part of a side surface of the ship.
Power receiving equipment for contactless power supply system. The power receiving facility according to claim 11 ,
In the state where the airtight sheet is maintained in the predetermined outer shape, the curvature of the predetermined area facing the power receiving surface of the power receiving circuit is smaller than the curvature around the predetermined area,
Power receiving equipment for contactless power supply system.

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