Automotive inductive charger with insertable magnetic core

Patent metadata

Field	Value
Publication number	US-9409489-B2
Application number	US-201313930646-A
Country	US
Kind code	B2
Filing date	Jun 28, 2013
Priority date	Dec 26, 2012
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

A magnetic connector apparatus that charges an electric vehicle through contactless magnetic coupling. The magnetic connector apparatus includes an external charger, an inlet, and a magnetic connector. The inlet is connected to a rechargeable battery of the vehicle. The magnetic connector is connected to a power source of the external charger and is transferred to the vehicle to be inserted into the inlet.

First claim

What is claimed is:

1. A magnetic connector apparatus that charges a vehicle through contactless magnetic coupling, comprising:
an external charger;
an inlet connected to a rechargeable battery of the vehicle; and
a magnetic connector connected to a power source of the external charger and transferred to the vehicle to be inserted into the inlet,
wherein the magnetic connector comprises:
a primary wire that extends from the external charger and includes a coil part;
a secondary wire disposed on the inlet of the vehicle and includes a coil part;
a magnetic core part that magnetically connects between the primary wire and the secondary wire,
wherein the magnetic core part is connected to the coil part of the primary wire or the coil part of the second wire,
wherein the magnetic core part includes a C-shaped ring part and a folding part coupled to both ends of the ring part to be spread and folded by a hinge structure,
wherein the magnetic core part is passed through and inserted into the coil part of the primary wire, and is inserted into the coil part of the secondary wire by moving the magnetic core part toward the vehicle upon charging of the rechargeable battery of the vehicle,
wherein the both ends of the ring part are coupled when the magnetic core part is passed through and inserted into the coil part of the primary wire.

2. The magnetic connector apparatus of claim 1 , wherein the magnetic connector uses a transformer of a converter as a connector.

3. The magnetic connector apparatus of claim 1 , wherein the magnetic core part is passed through and inserted into the coil part of the secondary wire, and upon charging of the rechargeable battery of the vehicle, the primary wire is moved toward the vehicle and then the magnetic core part is passed through and inserted into the coil part of the primary wire.

4. The magnetic connector apparatus of claim 1 , wherein the magnetic core part has a C-shape to connect the primary wire and the secondary wire.

5. The magnetic connector apparatus of claim 1 , wherein the magnetic core part includes a magnetic core having a magnetic property therein and an insulation cover that covers the magnetic core.

6. The magnetic connector apparatus of claim 1 , wherein the magnetic connector apparatus is applied to electric vehicles or hybrid vehicles.

7. The magnetic connector apparatus of claim 1 , wherein the magnetic connector comprises:
a case that houses a switch of a converter;
a primary wire connected to the switch of the case;
a magnetic core part magnetically coupled to the primary wire and having one end portion thereof coupled to the case by a hinge structure and the other end portion thereof protruding from the case to be spread and folded; and
a release button part pushably mounted on the case and allowing the magnetic core part to be spread.

8. The magnetic connector apparatus of claim 7 , wherein the release button part is elastically supported by a spring in a rotation direction, and the magnetic core part is spread when the release button part is pushed and is restored to an original position when the release button part is released.

9. A magnetic connector apparatus that charges a vehicle through contactless magnetic coupling, comprising;
an external charger; and
an inlet connected to a rechargeable battery of the vehicle; and
a magnetic connector that includes;
a primary wire that extends from the external charger and includes a coil part;
a secondary wire disposed on the inlet of the vehicle and includes a coil part;
a magnetic core part that magnetically connects between the primary wire and the secondary wire,
wherein the magnetic core part includes a C-shaped ring part and a folding part coupled to both ends of the ring part to be spread and folded by a hinge structure,
wherein the magnetic core part is passed through and inserted into the coil part of the primary wire, and is inserted into the coil part of the secondary wire by moving the magnetic core part toward the vehicle upon charging of the rechargeable battery of the vehicle,
wherein the both ends of the ring part are coupled when the magnetic core part is passed through and inserted into the coil part of the primary wire.

10. The magnetic connector apparatus of claim 9 , wherein the magnetic connector apparatus is applied to electric vehicles or hybrid vehicles.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Lee Woo Young
• Song Byeong Seob
• Lee Dae Woo
• Yang Jin Young
• Kim Jong Pil

Classifications

• H02J50/90

  involving detection or optimisation of position, e.g. alignment · CPC title

• B60L2200/36

  Vehicles designed to transport cargo, e.g. trucks · CPC title

• B60L2200/10

  Air crafts · CPC title

• B60L2210/30

  AC to DC converters · CPC title

• B60L2210/22

  without intermediate conversion to DC · CPC title