# US 11,445,607 B2 · Relay circuit board, electric wire for differential transmission with relay circuit board, cable with connector

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- Number: US 11,445,607 B2
- Document ID: US11445607B2
- Status: Granted
- Kind: B2
- Application number: 16/943,106
- Filed: 2020-07-30
- Published: 2020-11-12
- Granted: 2022-09-13
- Earliest claimed: 2018-09-04
- Assignees: Sumitomo Electric Industries, Ltd.
- Applicants: Sumitomo Electric Industries, Ltd.
- Inventors: Keiichiro Fukuda; Masaki Oyagi; Toru Nakanishi; Wataru Sakurai
- Web page: https://patentgrep.com/patent/US11445607B2

## CPC

- H01R 13/6466: on substrates, e.g. printed circuit boards [PCB]
- H05K 1/117: {Pads along the edge of rigid circuit boards, e.g. for pluggable connectors}
- H01R 12/53: connecting to cables except for flat or ribbon cables
- H01R 13/6658: {on printed circuit board (H01R13/6666 - H01R13/6691 take precedence)}
- H05K 1/0245: {Lay-out of balanced signal pairs, e.g. differential lines or twisted lines}
- H05K 2201/09027: Non-rectangular flat PCB, e.g. circular
- H05K 2201/09409: Multiple rows of pads, lands, terminals or dummy patterns; Multiple rows of mounted components
- H05K 2201/09418: Special orientation of pads, lands or terminals of component, e.g. radial or polygonal orientation
- H05K 2201/10356: Cables
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

A relay circuit board includes: a plurality of first pads arranged in parallel in a first direction; a plurality of second pads arranged in parallel in a second direction; and wirings connecting the plurality of first pads and the plurality of second pads, respectively. The second direction is inclined at a predetermined angle with respect to the first direction, and the predetermined angle is greater than 0 degree and smaller than 90 degrees.

## Claims

### Claim 1

A relay circuit board, comprising:
a plurality of first pads arranged in parallel in a first direction;
a plurality of second pads arranged in parallel in a second direction; and
wirings connecting the plurality of first pads and the plurality of second pads, respectively, wherein:
one or more of the wirings are provided in a bent state in a meandering manner,
the second direction is inclined at a predetermined angle with respect to the first direction,
the predetermined angle is greater than 0 degree and smaller than 90 degrees,
the one or more of the wirings include differential transmission line formed by a pair of a first wiring and a second wiring which are adjacent to each other,
a distance from one of the first pads connected to the first wiring to one of the second pads connected to the first wiring is shorter than a distance from another of the first pads connected to the second wiring to the one of the second pads, in the first direction, and
the first wiring is more meandering than the second wiring.

### Claim 2 (depends on 1)

The relay circuit board according to claim 1, wherein the predetermined angle is 30 degrees or greater and 60 degrees or smaller.

### Claim 3

An electric wire for differential transmission with a relay circuit board, compressing:
a relay circuit board including a plurality of first pads arranged in parallel in a first direction, a plurality of second pads arranged in parallel in a second direction, and wirings connecting the plurality of first pads and the plurality of second pads, respectively; and
a plurality of electric wires for differential transmission, wherein:
the plurality of electric wires for differential transmission are respectively connected to the plurality of first pads,
one or more of the wirings of the relay circuit board, which connect the plurality of first pads and the plurality of second pads, respectively, are provided in a bent state in a meandering manner,
the second direction is inclined at a predetermined angle with respect to the first direction, and the predetermined angle is greater than 0 degree and smaller than 90 degrees,
the one or more of the wirings include differential transmission line formed by a pair of a first wiring and a second wiring which are adjacent to each other,
a distance from one of the first pads connected to the first wiring to one of the second pads connected to the first wiring is shorter than a distance from another of the first pads connected to the second wiring to the one of the second pads, in the first direction, and
the first wiring is more meandering than the second wiring.

### Claim 4

A cable with a connector, comprising:
a connector; and
a cable, wherein:
the connector includes:
a relay circuit board including a plurality of first pads arranged in parallel in a first direction, a plurality of second pads arranged in parallel in a second direction, and wirings connecting the plurality of first pads and the plurality of second pads, respectively;
a housing accommodating the relay circuit board; and
a plurality of connector terminals arranged in parallel in the second direction, wherein the plurality of second pads are connected to the plurality of connector terminals,
the cable includes
a plurality of electric wires for differential transmission, and is led out from the housing in a state in which the plurality of electric wires for differential transmission are bundled,
the plurality of electric wires for differential transmission are respectively connected to the plurality of first pads,
the second direction is inclined at a predetermined angle with respect to the first direction, the predetermined angle is greater than 0 degree and smaller than 90 degrees,
the second direction and the direction in which the cable is led out from the housing are the same direction,
the wirings include differential transmission line formed by a pair of a first wiring and a second wiring which are adjacent to each other,
a distance from one of the first pads connected to the first wiring to one of the second pads connected to the first wiring is shorter than a distance from another of the first pads connected to the second wiring to the one of the second pads, in the first direction, and
the first wiring is more meandering than the second wiring.

### Claim 5 (depends on 4)

The cable with the connector according to claim 4, wherein the predetermined angle is 30 degrees or greater and 60 degrees or smaller.

### Claim 6

A cable with a connector, comprising:
a connector; and
a cable, wherein:
the connector includes:
a relay circuit board including a plurality of first pads arranged in parallel in a first direction, a plurality of second pads arranged in parallel in a second direction, and wirings connecting the plurality of first pads and the plurality of second pads, respectively;
a housing accommodating the relay circuit board; and
a plurality of connector terminals arranged in parallel in the second direction, wherein the plurality of second pads are connected to the plurality of connector terminals,
the cable includes
a plurality of electric wires for differential transmission, and is led out from the housing in a state in which the plurality of electric wires for differential transmission are bundled,
the plurality of electric wires for differential transmission are respectively connected to the plurality of first pads,
one or more of the wirings of the relay circuit board, which connect the plurality of first pads and the plurality of second pads, respectively, are provided in a bent state in a meandering manner,
the second direction is inclined at a predetermined angle with respect to the first direction, the predetermined angle is greater than 0 degree and smaller than 90 degrees,
the relay circuit board includes a connector portion which is exposed and protrudes from the housing in a lateral direction of the cable led out from the housing,
the plurality of the connector terminals is disposed on the connector portion,
the one or more of the wirings include differential transmission line formed by a pair of a first wiring and a second wiring which are adjacent to each other,
a distance from one of the first pads connected to the first wiring to one of the second pads connected to the first wiring is shorter than a distance from another of the first pads connected to the second wiring to the one of the second pads, in the first direction, and
the first wiring is more meandering than the second wiring.

### Claim 7 (depends on 6)

The cable with the connector according to claim 6, wherein the predetermined angle is 30 degrees or greater and 60 degrees or smaller.

### Claim 8 (depends on 6)

The cable with the connector according to claim 6, wherein:
the plurality of electric wires for differential transmission is connected to the plurality of the first pads in a third direction which is perpendicular to the first direction and inclined at a given angle with respect to the second direction, and
the given angle is greater than 0 degree and smaller than 90 degrees.