# US 10,483,697 B2 · Electrical connector having transformer with winding wires of different diameters

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- Number: US 10,483,697 B2
- Document ID: US10483697B2
- Status: Granted
- Kind: B2
- Application number: 15/907,309
- Filed: 2018-02-28
- Published: 2018-08-30
- Granted: 2019-11-19
- Earliest claimed: 2017-02-28
- Assignees: Foxconn Interconnect Technology Limited
- Applicants: Foxconn Interconnect Technology Limited
- Inventors: Yong-Chun Xu; Chih-Ching Hsu
- Web page: https://patentgrep.com/patent/US10483697B2

## CPC

- H01R 13/6633: {with inductive component, e.g. transformer}
- H01F 27/24: Magnetic cores
- H01F 27/2823: {Wires (H01F27/2866 takes precedence)}
- H01F 27/2895: {Windings disposed upon ring cores}
- H01F 30/16: Toroidal transformers
- H01F 27/29: Terminals; Tapping arrangements {for signal inductances}
- H01R 13/665: {with built-in electronic circuit (H01R13/70, H01R13/719 take precedence)}
- H01R 24/64: for high frequency, e.g. RJ 45
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An electrical connector includes: an insulative housing; and an inserting module positioned in the insulative housing and including a transformer, the transformer comprising: a magnetic core having a central opening; and a first and second wire groups each including plural wires, each wire having a central portion, a first end, and an opposite second end, the central portions of each wire group wound around the magnetic core through the central opening, wherein the first and second wire groups joint to function as a primary winding and a secondary winding of the transformer, and a wire diameter of the secondary winding is greater than a wire diameter of the primary winding.

## Claims

### Claim 1

An electrical connector comprising:
an insulative housing; and
an inserting module positioned in the insulative housing and including a transformer, the transformer comprising:
a toroidal magnetic core having a central opening; and
a first and second wire groups each including plural wires, each wire having a central portion, a first end, and an opposite second end, the central portions of each wire group wound around the magnetic core through the central opening; wherein
the first and second wire groups joint to function as a primary winding and a secondary winding of the transformer, and a wire diameter of each of the plural wires of the secondary winding is greater than a wire diameter of each of the plural wires of the primary winding.

### Claim 2 (depends on 1)

The electrical connector as claimed in claim 1, wherein the first and second ends of the first and second wire groups are respectively twisted as input ends, output ends, and center taps of the transformer.

### Claim 3 (depends on 1)

The electrical connector as claimed in claim 1, wherein the magnetic core includes a left half and a right half, the central portion of the first wire group only wound around the left half, the central portion of the second wire group only wound around the right half.

### Claim 4 (depends on 1)

The electrical connector as claimed in claim 1, wherein the center tap of the secondary winding is electrically connected to corresponding a circuit derived from a power sourcing equipment (PSE).

### Claim 5 (depends on 4)

The electrical connector as claimed in claim 4, wherein the printed circuit board is divided into opposite cable side and physical side, and the secondary winding is closer to the cable side while the primary winding is closer to the physical side.