COOLING DEVICE AND WIRELESS POWER SUPPLY SYSTEM

• US 20160381829A1
• Filed: 09/13/2016
• Published: 12/29/2016
• Est. Priority Date: 05/19/2014
• Status: Active Grant

• Current Assignee: IHI Corporation
• Original Assignee: IHI Corporation
• Inventors: NIIZUMA, Motonao, UEDA, Akio
• Granted Patent: US 10,076,058 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• CPC Class Codes: B60L 53/124 Detection or removal of foreign bodies
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H05K 7/20272 Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
• 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 cooling device of the present disclosure is attached to a park station where wireless power supply is performed to a vehicle using a coil and cools a coil provided on the vehicle by spraying a coolant.

Claims

1. A cooling device attached to a power transmitting device that performs wireless power supply using a coil to a movable power receiving device and cooling a coil provided on the power receiving device by spraying a coolant.

3. The cooling device according to claim 1, comprising:

a heat transfer plate thermally connected to the coil provided on the power receiving device,

wherein the cooling device sprays the coolant toward at least either one of the coil provided on the power receiving device and the heat transfer plate.

5. The cooling device according to claim 1,

wherein the cooling device sprays the coolant obliquely with respect to a facing direction in which the coils face each other at a time of the wireless power supply.

7. The cooling device according to claim 1,

wherein the cooling device sprays the coolant in at least either one of a jet form and a mist form.

9. The cooling device according to claim 1, comprising:

a coolant jetting member where a coolant jet port is provided,

wherein the coolant jetting member has non-magnetic and non-electroconductive properties.

11. The cooling device according to claim 9,

wherein at least a part of the coolant jetting member is provided in a facing region where the coils face each other at the time of performing wireless power supply.

13. The cooling device according to claim 1,

wherein at least either one of the coil provided on the power transmitting device and the coil provided on the power receiving device is covered by a non-magnetic and non-electroconductive cover member.

15. The cooling device according to claim 13,

wherein the cover member covering a coil on a lower one in a gravity direction of either the coil provided on the power transmitting device and the coil provided on the power receiving device is inclined obliquely with respect to the gravity direction.

17. The cooling device according to claim 1, comprising:

a receiving member recovering at least a part of the sprayed coolant.

19. A wireless power supply system performing wireless power supply using a coil between a power receiving device and a power transmitting device, at least either one of the power receiving device and the power transmitting device being movable, and comprising the cooling device according to claim 1 as a cooling device cooling at least either one of the coils provided on the power receiving device and the power transmitting device.

2. A cooling device attached to a power receiving device that receives wireless power supply using a coil from a movable power transmitting device and cooling a coil provided on the power transmitting device by spraying a coolant.

4. The cooling device according to claim 2, comprising:

a heat transfer plate thermally connected to the coil provided on the power transmitting device,

wherein the cooling device sprays the coolant toward at least either one of the coil provided on the power transmitting device and the heat transfer plate.

6. The cooling device according to claim 2,

wherein the cooling device sprays the coolant obliquely with respect to a facing direction in which the coils face each other at a time of the wireless power supply.

8. The cooling device according to claim 2,

wherein the cooling device sprays the coolant in at least either one of a jet form and a mist form.

10. The cooling device according to claim 2, comprising:

a coolant jetting member where a coolant jet port is provided,

wherein the coolant jetting member has non-magnetic and non-electroconductive properties.

12. The cooling device according to claim 10,

wherein at least a part of the coolant jetting member is provided in a facing region where the coils face each other at the time of performing wireless power supply.

14. The cooling device according to claim 2,

wherein at least either one of the coil provided on the power transmitting device and the coil provided on the power receiving device is covered by a non-magnetic and non-electroconductive cover member.

16. The cooling device according to claim 14,

wherein the cover member covering a coil on a lower one in a gravity direction of either the coil provided on the power transmitting device and the coil provided on the power receiving device is inclined obliquely with respect to the gravity direction.

18. The cooling device according to claim 2, comprising:

a receiving member recovering at least a part of the sprayed coolant.

20. A wireless power supply system performing wireless power supply using a coil between a power receiving device and a power transmitting device, at least either one of the power receiving device and the power transmitting device being movable, and comprising the cooling device according to claim 2 as a cooling device cooling at least either one of the coils provided on the power receiving device and the power transmitting device.