Primary coil raising type non-contact charging system with elevating-type primary coil

• US 8,264,197 B2
• Filed: 06/28/2010
• Issued: 09/11/2012
• Est. Priority Date: 12/03/2009
• Status: Expired due to Fees

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Hyundai Motor Japan R&D Center Incorporated, Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Hyundai Motor Japan R&D Center Incorporated
• Inventors: Shimoyama, Yoshiro
• Primary Examiner(s): TSO, EDWARD H
• Application Number:
  US12/824,841
• Publication Number:
  US 20110133692A1
• Time in Patent Office: 806 Days
• Field of Search: 320/104, 320/107, 320/108, 320/109, 320/114, 320/115, 180/65.1, 180/65.21, 414/227, 414/230, 414/254
• US Class Current: 320/108
• CPC Class Codes: B60L 53/126 Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/38 specially adapted for charging by inductive energy transfer
• 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

The present invention provides a non-contact charging system with an elevating-type primary coil, which is convenient to align the position of a primary coil and a second coil and is energy-saving.

In preferred embodiment, the non-contact charging system with an elevating-type primary coil of the present invention includes: a primary coil elevated from the ground surface to face a secondary coil of a vehicle; a concave portion in which a vehicle tire is put; a pressure plate installed on the concave portion and pushed to a predetermined depth by a vehicle load from the tire; and a hydraulic cylinder elevating the primary coil when the pressure plate is pushed down.

Claims

1. A non-contact charging system with an elevating-type primary coil, the system comprising:

a primary coil elevated from the ground surface to face a secondary coil of a vehicle;

a concave portion in which a vehicle tire is put;

a pressure plate installed on the concave portion and pushed to a predetermined depth by a vehicle load from the tire; and

a hydraulic cylinder elevating the primary coil when the pressure plate is pushed down.

2. The system of claim 1, wherein the concave portion and the pressure plate are installed in two places, respectively, corresponding to the left and right tires of the vehicle, and the hydraulic cylinder comprises hydraulic paths from the pressure plates in two places, which are joined together and connected to the primary coil.

3. The system of claim 1, wherein the depth of the concave portion, in which the tire is located, differs depending on the size of the vehicle.

4. The system of claim 3, wherein the concave portions for a large vehicle, a mid-size vehicle, and a small vehicle are arranged adjacent to each other in a line and the pressure plate passes through the concave portions.

5. The system of claim 1, further comprising a tire guide groove installed on the rear of the concave portion.

6. A non-contact charging system with an elevating-type primary coil, the system comprising:

a primary coil elevated from the ground surface to face a secondary coil of a vehicle;

a concave portion in which a vehicle tire is put;

a pressure plate; and

a hydraulic cylinder.

7. The non-contact charging system of claim 6, wherein the pressure plate is installed on the concave portion and pushed to a predetermined depth by a vehicle load from the tire.

8. The non-contact charging system of claim 6, wherein the hydraulic cylinder elevates the primary coil when the pressure plate is pushed down.