Cable having improved wires arrangement

Patent metadata

Field	Value
Publication number	US-9607738-B1
Application number	US-201615298129-A
Country	US
Kind code	B1
Filing date	Oct 19, 2016
Priority date	Oct 19, 2015
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A USB Type-C cable includes: a number of first wires and second wires, the first wires including a power wire for transmitting a power signal and plural coaxial wires for transmitting high speed signal, the second wires including at least one detective wire for transmitting detective signal, at least one power return wire for grounding, at least one twisted pair of wires for transmitting USB 2.0 signal, and at least one subsidiary wire for transmitting subsidiary signal; a jacket made of insulative material and receiving the first wires and the second wires; and a metal shield layer coating around the twisted pair of wires; wherein the first wires are arranged along an inner wall of the jacket in a circle and forms a cavity without a metal shield layer to receive the second wires, and the detective wire and the subsidiary wire are separated by the power return wire.

First claim

What is claimed is:

1. A Universal Serial Bus (USB) Type-C cable comprising:
a plurality of wires including a plurality of first wires and a plurality of second wires, the plurality of first wires including a power wire for transmitting a power signal and a plurality of coaxial wires for transmitting high speed signal, the plurality of second wires including at least one detective wire for transmitting detective signal, at least one power return wire for grounding, at least one twisted pair of wires for transmitting USB 2.0 signal, and at least one subsidiary wire for transmitting subsidiary signal;
a hollow jacket made of insulative material and receiving the plurality of first wires and the plurality of second wires; and
a metal shield layer coating around the twisted pair of wires;
wherein the first wires are arranged along an inner wall of the hollow jacket in a circle and forms a cavity without a metal shielding layer to receive the plurality of second wires, and the detective wire and the subsidiary wire are separated by the power return wire.

2. The USB Type-C cable as recited in claim 1 , wherein the metal shield layer is made of aluminum material.

3. The USB Type-C cable as recited in claim 1 , wherein the plurality of second wires comprise a bare grounding wire received in the metal shield layer and electrically connected to the metal shield layer.

4. The USB Type-C cable as recited in claim 3 , wherein the at least one power return wire comprises a pair of power return wires separated from each other, one of the power return wires including a first inner conductor and a first insulative layer coating around the first inner conductor, the other power return wire including only one second inner conductor.

5. The USB Type-C cable as recited in claim 4 , wherein the detective wire is located between the two power return wires, and the at least one subsidiary wire includes a pair of subsidiary wires located at opposite sides of the metal shield layer, respectively.

6. The USB Type-C cable as recited in claim 4 , wherein the first inner conductor is electrically connected to an external printed circuit board of a connector, and the second inner conductor is connected to an external metal shell of the connector.

7. The USB Type-C cable as recited in claim 6 , wherein the bare grounding wire is electrically connected to the external metal shell.

8. The USB Type-C cable as recited in claim 1 , wherein a diameter of the first wire is greater than a diameter of the second wire.

9. The USB Type-C cable as recited in claim 1 , wherein the plurality of coaxial wires include four pairs of differential signal wires, and the at least one detective wire includes a pair of detective wires.

10. The USB Type-C cable as recited in claim 1 , wherein the plurality of first wires are directly contact with the plurality of second wires.

11. A USB (Universal Serial Bus) Type-C cable assembly comprising:
an insulative jacket defining an interior space essentially composed of an outer ring zone and an inner center zone;
a plurality of first wires located in the outer ring zone and including eight differential-pair wires and one power wires being disposed wherein each of said differential-pair wires is a coaxial wire having an inner conductor concentrically enclosed by an metallic layer;
a plurality of second wires located in the inner center zone and including two twisted-pair wires associated with a grounding wire commonly enclosed within a metallic shielding layer for USB 2.0 transmission, two subsidiary wires and at least one detective wire being arranged in a triangular configuration beside said metallic shielding layer; wherein
no additional ring type metallic shielding layer is disposed between the first wires and the second wires.

12. The USB Type-C cable assembly as claimed in claim 11 , wherein a diameter of each of said second wire is smaller than that of each of the first wires.

13. The USB Type-C cable assembly as claimed in claim 11 , wherein said second wires further including two power return wires, wherein each of said two power return wires is located beside the metallic shielding layer and between the at least one detective wire and the corresponding subsidiary wire, one of said two power return wires including only exposed inner conductor while the other of said two power return wires including an unexposed inner conductor enclosed within the insulative layer.

14. The USB Type-C cable assembly as claimed in claim 13 , further including a metallic braiding layer intimately inside said insulative jacket to surround the first wires, wherein said exposed inner conductor is electrically connected to said braiding layer.

15. The USB Type-C cable assembly as claimed in claim 14 , further including a connector having a metallic shell enclosing a printed circuit board therein, wherein said unexposed inner conductor is soldered upon the printed circuit board while said exposed inner conductor is electrically connected to the metallic shell.

16. The USB Type-C cable assembly as claimed in claim 14 , wherein the metallic shielding layer of the twisted pair wires for USB 2.0 transmission, and the metallic layer of each of the coaxial wires both are mechanically and electrically connected to the metallic braiding layer.

17. A USB (Universal Serial Bus) Type-C cable assembly comprising:
an insulative jacket defining an inner space essentially composed of an outer ring zone and an inner center zone;
a tubular metallic braiding layer intimately disposed upon an interior surface of the jacket to surround the outer ring zone;
a plurality of first wires arranged in the outer ring zone, each of said first wires being of a coaxial wire including an inner conductor concentrically enclosed within a metallic layer;
a plurality of second wires arranged in the inner center zone, said second wires including a twisted-pair wires for transmission of USB2.0 signal, at least one detective wire, and two power return wires of which one is an exposed inner conductor and the other is an unexposed inner conductor protectively enclosed within an insulative layer; and
a connector including a metal shell enclosing a printed circuit board; wherein
the unexposed inner conductor is mechanically and electrically connected to the printed circuit board while the exposed inner conductor is electrically connected to the braiding layer.

18. The USB Type-C cable assembly as claimed in claim 17 , wherein said exposed inner conductor is electrically connected to the metal shell of the connector.

19. The USB Type-C cable assembly as claimed in claim 17 , wherein said second wires further include two subsidiary wires to cooperate with the detective wire to form a triangular configuration, viewed along axial direction of the jacket, and each of said power return wires is located between the detective wire and the corresponding subsidiary wire, said two power return wires having different outer diameters so as to provide an asymmetrical arrangement with the triangular configuration.

20. The USB Type-C cable assembly as claimed in claim 17 , wherein said metallic layer of each of said first wires is mechanically and electrically connected to the braiding layer.

Assignees

• Foxconn Interconnect Technology Ltd

Inventors

• Wu Jerry
• Chen Jun
• Meng Fan-Bo

Classifications

• H01B9/006

  Constructional features relating to the conductors · CPC title

• H01B11/20 Primary

  Cables having a multiplicity of coaxial lines · CPC title

• H01B11/02

  Cables with twisted pairs or quads · CPC title

• H01B9/003

  including electrical control or communication wires · CPC title

• H01R13/658

  High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse] {(coaxial coupling devices specially adapted for high frequency H01R24/40; for flat or ribbon cable connectors H01R12/774; for coaxial cable H01R9/05)} · CPC title