Wireless power connector and wireless power connector system

Patent metadata

Field	Value
Publication number	US-9761372-B2
Application number	US-201314380066-A
Country	US
Kind code	B2
Filing date	Feb 21, 2013
Priority date	Feb 23, 2012
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

The invention relates to a wireless power connector and a wireless power connector system including at least one wireless power connector for contactlessly receiving electric power from a second connector and for contactlessly supplying electric power to a third connector. In order to enable the wireless power connector to inductively forward electric power received from the second connector, the invention suggests providing a first and a second mating end respectively connectable to the second and the third connector and a magnetic core extending between the first and the second mating end. A coil is wound around the magnetic core and configured to output, as an alternating current, at least parts of the electric power received from the second connector. The magnetic core interconnects the first and the second mating end such that, in a connected state, the magnetic core inductively forwards electric power to the third connector.

First claim

The invention claimed is:

1. A wireless power connector for contactlessly receiving electric power from a second connector and for contactlessly supplying electric power to a third connector, the wireless power connector comprising:
a first and a second mating end respectively connectable to the second and the third connector;
a magnetic core extending between the first and the second mating end;
a coil wound around the magnetic core and configured to output, as an alternating current, at least parts of the electric power received from the second connector; and
a receiving circuit for processing and outputting the received electric power at a predetermined voltage or current level;
wherein the magnetic core interconnects the first and the second mating end such that, when the wireless power connector is connected to the second and to the third connector, the magnetic core inductively forwards at least parts of the electric power received from the second connector to the third connector.

2. The wireless power connector according to claim 1 , wherein the magnetic core includes two legs respectively interconnecting first and second regions of the first and the second mating end.

3. The wireless power connector according to claim 1 , wherein the magnetic core includes a first, cylindrical leg and a second, C-shaped or O-shaped leg at least partially surrounding the first leg, and the coil is wound around the first leg.

4. The wireless power connector according to claim 3 , wherein the first leg of the magnetic core is hollow.

5. The wireless power connector according to claim 1 , wherein the magnetic core extends between the surfaces of the first and the second mating end.

6. The wireless power connector according to claim 5 , wherein the magnetic core includes exposed surface areas at the first and the second mating end of the wireless power connector.

7. The wireless power connector according to claim 1 , wherein the second mating end is connectable to a terminating element including a magnetic core.

8. The wireless power connector according to claim 1 , wherein the first and/or second mating end(s) allow for a rotatable connection to the second and the third connector.

9. The wireless power connector according to claim 1 , wherein the first and/or second mating end(s) allow for mating with only the respective second and/or third connector, or the first and second mating ends allow for mating with any of the respective second and third connectors.

10. The wireless power connector according to claim 1 , wherein the first mating end allows for mating with a second mating end of another one of the wireless power connector.

11. A wireless power connector system, comprising:
at least one wireless power connector according to claim 1 ;
a second connector for contactlessly supplying electric power to the at least one wireless power connector, the second connector including a magnetic core and a coil wound around the magnetic core, the coil serving as an electric power input for inputting an alternating current;
a terminating element including magnetic core; wherein
when the second connector and the terminating element are respectively connected to the first and the second mating end of the at least one wireless power connector which, in case of a plurality of wireless power connectors, is formed of the plurality of interconnected wireless power connectors, the magnetic core of the second connector, the magnetic core(s) of the at least one wireless power connector and the magnetic core of the terminating element form a closed magnetic loop.

12. A wireless power connector system, according to claim 11 , wherein, at the first and second mating end, the cross-sections of the magnetic core(s) of the at least one wireless power connector correspond to the cross-sections of the magnetic cores of the second and third connector at their respective facing ends, or at the first and second mating end, the cross-sections of the magnetic core(s) of the at least one wireless power connector correspond to the cross-sections of the magnetic cores of the second connector and of the terminating element at their respective facing ends.

13. The wireless power connector system, according to claim 11 , wherein the magnetic core(s) of the at least one wireless power connector abuts the respective magnetic cores of the second and third connector or of the second connector and the terminating element at the first and second mating end, when the second and third connector or the second connector and the terminating element are respectively connected to the first and the second mating end of the at least one wireless power connector.

14. A wireless power connector for contactlessly receiving electric power from a second connector and for contactlessly supplying electric power to a third connector, the wireless power connector comprising:
a first and a second mating end respectively connectable to the second and the third connector;
a magnetic core extends between the first and the second mating end;
a coil wound around the magnetic core and configured to output, as an alternating current, at least parts of the electric power received from the second connector; and
wherein the magnetic core interconnects the first and the second mating end such that, when the wireless power connector is connected to the second and to the third connector, the magnetic core inductively forwards at least parts of the electric power received from the second connector to the third connector and wherein the first and/or second mating end(s) allow for a rotatable connection to the second and the third connector.

15. A wireless power connector for contactlessly receiving electric power from a second connector and for contactlessly supplying electric power to a third connector, the wireless power connector comprising:
a first and a second mating end respectively connectable to the second and the third connector;
a magnetic core extends between the first and the second mating end;
a coil wound around the magnetic core and configured to output, as an alternating current, at least parts of the electric power received from the second connector; and wherein the magnetic core interconnects the first and the second mating end such that, when the wireless power connector is connected to the second and to the third connector, the magnetic core inductively forwards at least parts of the electric power received from the second connector to the third connector and wherein the first mating end allows for mating with a second mating end of another one of the wireless power connector.

Assignees

• Tyco Electronics Nederland Bv
• Te Connectivity Nederland Bv

Inventors

• Habraken Gied

Classifications

• H01F38/14 Primary

  Inductive couplings {(for wireless supply or distribution of electric power using inductive coupling H02J50/10)} · CPC title

• H01F27/24

  Magnetic cores · CPC title

• H01F27/2823

  Wires (H01F27/2866 takes precedence) · CPC title