Heat-transfer device, power-supplying device, and wireless power-supplying system

Patent metadata

Field	Value
Publication number	US-9854709-B2
Application number	US-201514803727-A
Country	US
Kind code	B2
Filing date	Jul 20, 2015
Priority date	Feb 8, 2013
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

A wireless power-supply system ( 1 ) performing a wireless power supply between a vehicle ( 10 ) and a stop station ( 20 ), wherein the wireless power-supply system includes a heat-transfer device ( 30 ). The heat-transfer device ( 30 ) transfers heat generated due to the wireless power supply to the stop station ( 20 ) having high heat capacity from the vehicle ( 10 ) having low heat capacity. The heat-transfer device ( 30 ) includes a flexible heat-transfer member ( 32 ), in which the flexible heat-transfer member has tiltability in a moving direction of the vehicle ( 10 ).

First claim

What is claimed is:

1. A heat-transfer device that transfers heat between a power-receiving device and a power-supplying device for a wireless power supply, at least one of the power-receiving device and the power-supplying device being movable, the heat-transfer device being a different member from the power-supplying device and from the power-receiving device, and the heat-transfer device comprising:
a flexible heat-transfer member that transfers heat generated due to the wireless power supply, from one of the power-receiving device and the power-supplying device to the other thereof and has at least one of tiltability in the moving direction and extensibility in a direction perpendicular to the moving direction.

2. The heat-transfer device according to claim 1 ,
wherein each of the power-receiving device and the power-supplying device includes a coil that performs the wireless power supply,
the heat-transfer device further comprises:
a heat transfer plate that is provided around the coil of one of the power-receiving device and the power-supplying device; and
the flexible heat-transfer member that is erected around the coil of the other of the power-receiving device and the power-supplying device and comes into contact with the heat transfer plate.

3. The heat-transfer device according to claim 2 ,
wherein the flexible heat-transfer member includes a metal brush, and
the metal brush is implanted in a metal pipe in which a refrigerant flows.

4. The heat-transfer device according to claim 2 ,
wherein the flexible heat-transfer member includes a spring member, and
the spring member biases a metal pipe, in which a refrigerant flows, to the heat transfer plate.

5. The heat-transfer device according to claim 2 ,
wherein the flexible heat-transfer member includes an expansion-contraction member that comes into contact with the heat transfer plate through injection of a refrigerant.

6. The heat-transfer device according to claim 5 ,
wherein the expansion-contraction member includes at least one of a rod-like tube and an arch-like tube.

7. The heat-transfer device according to claim 1 ,
wherein one of the power-receiving device and the power-supplying device is a vehicle, and
the other of the power-receiving device and the power-supplying device is a stop station at which the vehicle stops.

8. The heat-transfer device according to claim 5 ,
wherein the expansion-contraction member is non-magnetic and non-electrically conductive.

9. The heat-transfer device according to claim 5 ,
wherein the expansion-contraction member is provided on an opposing surface where the coils face each other during the wireless power supply.

10. The heat-transfer device according to claim 8 ,
wherein the expansion-contraction member includes an injection-discharge port that functions as both an injection port and a discharge port for the refrigerant,
the heat-transfer device further comprises:
a refrigerant injector that is connected to the injection-discharge port and switches the injection and non-injection of the refrigerant.

11. The heat-transfer device according to claim 8 ,
wherein the expansion-contraction member includes an injection port and a discharge port for the refrigerant,
the heat-transfer device further comprises:
a refrigerant injector that is connected to the injection port and injects the refrigerant while the refrigerant is discharged from the discharge port.

12. The heat-transfer device according to claim 8 ,
wherein the expansion-contraction member includes an injection port and a discharge port for the refrigerant,
the heat-transfer device further comprises:
a refrigerant injector that is connected to the injection port and the discharge port and injects at least a part of the refrigerant, which is discharged from the discharge port, into the injection port and circulates the refrigerant.

13. The heat-transfer device according to claim 8 ,
wherein a plurality of the expansion-contraction members are provided at positions that are different from each other,
the heat-transfer device further comprises:
a refrigerant injector that separately and independently injects the refrigerant into the plurality of expansion-contraction members.

14. A power-supplying device that wirelessly supplies power to a power-receiving device, the power-supplying device comprises:
a heat-transfer device that transfers heat generated due to the wireless power supply from one of the power-receiving device and the power-supplying device, of which at least one is movable, to the other thereof,
wherein the heat-transfer device includes a flexible heat-transfer member that has at least one of tiltability in the moving direction and extensibility in a direction perpendicular to the moving direction, and the heat-transfer device being a different member from the power-supplying device and from the power-receiving device.

15. A wireless power-supplying system that performs a wireless power supply between a power-receiving device and a power-supplying device of which at least one is movable, the wireless power-supplying system comprises:
a heat-transfer device that transfers heat, which is generated due to the wireless power supply from one of the power-receiving device and the power-supplying device to the other thereof,
wherein the heat-transfer device includes a flexible heat-transfer member that has at least one of tiltability in the moving direction and extensibility in a direction perpendicular to the moving direction, and the heat-transfer device being a different member from the power-supplying device and from the power-receiving device.

Assignees

• Ihi Corp

Inventors

• Niizuma Motonao

Classifications

• B60M7/003

  for vehicles using stored power (e.g. charging stations) · CPC title

• Y02T90/14

  Plug-in electric vehicles · CPC title

• B60L53/12

  Inductive energy transfer · CPC title

• Y02T90/12

  Electric charging stations · CPC title

• H01F27/16

  Water cooling · CPC title