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

• US 9,854,709 B2
• Filed: 07/20/2015
• Issued: 12/26/2017
• Est. Priority Date: 02/08/2013
• Status: Active Grant

• Current Assignee: IHI Corporation
• Original Assignee: IHI Corporation
• Inventors: Niizuma, Motonao
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Yeshaw, Esayas
• Application Number:
  US14/803,727
• Publication Number:
  US 20150327405A1
• Time in Patent Office: 890 Days
• CPC Class Codes: B60L 2240/36 Temperature of vehicle components or parts
• CPC Class Codes: B60L 5/005 without mechanical contact between the collector and the power supply line
• CPC Class Codes: B60L 53/124 Detection or removal of foreign bodies
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60L 53/38 specially adapted for charging by inductive energy transfer
• CPC Class Codes: B60M 7/003 for vehicles using stored power (e.g. charging stations)
• CPC Class Codes: H01F 27/16 Water cooling
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H05K 7/20509 Multiple-component heat spreaders; Multi-component heat-conducting support plates; Multi-component non-closed heat-conducting structures
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

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).

Claims

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.