Communication harness, communication harness set, and relay connector

Patent metadata

Field	Value
Publication number	US-10992083-B2
Application number	US-201916730986-A
Country	US
Kind code	B2
Filing date	Dec 30, 2019
Priority date	Oct 10, 2017
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

A communication harness is used for mutual data transmission by differential transmission between at least two electronic devices. The communication harness includes a cable, a first signal line, a second signal line, and a first ground line. The first signal line is surrounded by the cable and transmits a first signal for differential transmission. The second signal line is surrounded by the cable and transmits a second signal for differential transmission. The first ground line is surrounded by the cable. A supply voltage is superposed on the first signal line.

First claim

What is claimed is:

1. A communication harness set for mutual data transmission by differential transmission between at least two electronic devices via a relay connector, the communication harness set comprising:
a first communication harness; and
a second communication harness,
wherein each of the first communication harness and the second communication harness includes:
a cable;
a first signal line which is covered with the cable, and through which a first signal for differential transmission is transmitted;
a second signal line which is covered with the cable, and through which a second signal for differential transmission is transmitted; and
a first ground line covered with the cable,
wherein a supply voltage is superposed on the first signal line,
the first signal line of the first communication harness is electrically connected to the first signal line of the second communication harness via the relay connector,
the second signal line of the first communication harness is electrically connected to the second signal line of the second communication harness via the relay connector, and
the first ground line of the first communication harness is electrically isolated from the first ground line of the second communication harness by the relay connector.

2. A relay connector which is disposed between a first electronic device and a second electronic device, and relays a signal for differential transmission, the first electronic device and the relay connector being connected to each other by a first communication harness, the second electronic device and the relay connector being connected to each other by a second communication harness, each of the first communication harness and the second communication harness including a first signal line, a second signal line, and a first ground line, the relay connector comprising:
a first terminal to be connected to the first signal line included in the first communication harness;
a second terminal to be connected to the second signal line included in the first communication harness;
a third terminal to be connected to the first ground line included in the first communication harness;
a fourth terminal to be connected to the first signal line included in the second communication harness;
a fifth terminal to be connected to the second signal line included in the second communication harness;
a sixth terminal to be connected to the first ground line included in the second communication harness and electrically isolated from the third terminal;
a first conductive portion electrically conductive connected to the first terminal and the fourth terminal; and
a second conductive portion electrically conductive connected to the second terminal and the fifth terminal.

3. The relay connector according to claim 2 ,
wherein the relay connector is disposed in a third electronic device, and
the first ground line included in the first communication harness and a second ground line included in the first communication harness are connected to a ground of the third electronic device.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Takahata Atsushi

Classifications

• H04B3/54

  Systems for transmission via power distribution lines · CPC title

• H01R31/06

  Intermediate parts for linking two coupling parts, e.g. adapter (with a holder adapted for supporting apparatus to which its counterpart is attached H01R33/94) · CPC title

• H04B2203/5425

  improving S/N by matching impedance, noise reduction, gain control · CPC title

• H01R13/6592

  the conductive member being a shielded cable · CPC title

• H04B3/30

  Reducing interference caused by unbalanced currents in a normally balanced line · CPC title