WIRELESS CHARGING APPARATUS FOR CABLE-TYPE SECONDARY BATTERY

• US 20140320076A1
• Filed: 06/02/2014
• Published: 10/30/2014
• Est. Priority Date: 04/26/2013
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Kwon, Yo-Han, Woo, Sang-Wook, Jung, Hye-Ran, Kim, Je-Young
• Granted Patent: US 9,263,911 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries

Abstract

Disclosed is a wireless charging apparatus for a cable-type secondary battery. The wireless charging apparatus for the cable-type secondary battery according to the present disclosure includes a socket having a space formed inside for mounting the cable-type secondary battery, a first terminal that is electrically connected to an outer current collector of the cable-type secondary battery mounted in the socket, a second terminal that is electrically connected to an inner current collector of the cable-type secondary battery mounted in the socket, and a secondary coil for wireless charging having one end connected with the first terminal and the other end connected with the second terminal, and wound along an outer circumferential surface of the socket. According to the present disclosure, even if a secondary coil for wireless power reception is absent from a cable-type secondary battery, charging may be performed by a method for wireless power transmission and reception.

Claims

1. A wireless charging apparatus for a cable-type secondary battery, comprising:

a socket having a space formed inside for mounting the cable-type secondary battery;

a first terminal that is electrically connected to an outer current collector of the cable-type secondary battery mounted in the socket;

a second terminal that is electrically connected to an inner current collector of the cable-type secondary battery mounted in the socket; and

a secondary coil for wireless charging having one end connected with the first terminal and the other end connected with the second terminal, and wound along an outer circumferential surface of the socket.

2. The wireless charging apparatus for the cable-type secondary battery according to claim 1, wherein the socket is cylindrical.

3. The wireless charging apparatus for the cable-type secondary battery according to claim 2, wherein the cylindrical socket is open to at least one of a top and a bottom of a cylinder.

4. The wireless charging apparatus for the cable-type secondary battery according to claim 1, wherein the socket includes a first cover having a hemispherical cross sectional area and a second cover having a hemispherical cross sectional area, and the secondary coil for wireless charging is in a form of surrounding the outer circumferential surface of the socket when the first cover and the second cover are engaged with each other to form a cylindrical shape.

5. The wireless charging apparatus for the cable-type secondary battery according to claim 4, wherein the first cover and the second cover are connected such that the first cover and the second cover come in contact with each other at any one corner to allow opening and closing.

6. The wireless charging apparatus for the cable-type secondary battery according to claim 5, wherein the first cover and the second cover are connected through a hinge.

7. The wireless charging apparatus for the cable-type secondary battery according to claim 1, wherein the first terminal has a shape that the first terminal is coupled with a first plug electrically connected to the outer current collector of the cable-type secondary battery and formed at one end of the cable-type secondary battery, and

the second terminal has a shape that the second terminal is coupled with a second plug electrically connected to the inner current collector of the cable-type secondary battery and formed at the other end of the cable-type secondary battery.

8. A wireless charging set for a cable-type secondary battery, comprising:

a wireless charging apparatus for a cable-type secondary battery defined in claim 1; and

a wireless charging power supply apparatus for a cable-type secondary battery including a primary coil for wireless charging.

13. A wireless charging set for a cable-type secondary battery, comprising:

a wireless charging apparatus for a cable-type secondary battery defined in claim 1; and

a wireless charging power supply apparatus for a cable-type secondary battery including a primary coil for wireless charging.

9. A wireless charging apparatus for a cable-type secondary battery, comprising:

a plate having a slit formed for mounting the cable-type secondary battery;

a first terminal that is electrically connected to an outer current collector of the cable-type secondary battery mounted in the slit of the plate;

a second terminal that is electrically connected to an inner current collector of the cable-type secondary battery mounted in the slit of the plate; and

a secondary coil for wireless charging having one end connected with the first terminal and the other end connected with the second terminal.

10. The wireless charging apparatus for the cable-type secondary battery according to claim 9, wherein the plate has at least two slits.

11. The wireless charging apparatus for the cable-type secondary battery according to claim 10, wherein the first terminal and the second terminal electrically connected to cable-type secondary batteries mounted in the at least two slits have an electrically parallel relationship with the secondary coil for wireless charging.

12. The wireless charging apparatus for the cable-type secondary battery according to claim 9, wherein the first terminal has a shape that the first terminal is coupled with a first plug electrically connected to the outer current collector of the cable-type secondary battery and formed at one end of the cable-type secondary battery, and

the second terminal has a shape that the second terminal is coupled with a second plug electrically connected to the inner current collector of the cable-type secondary battery and formed at the other end of the cable-type secondary battery.