Terminal unit, and connector including the same

Patent metadata

Field	Value
Publication number	US-12537345-B2
Application number	US-202318338457-A
Country	US
Kind code	B2
Filing date	Jun 21, 2023
Priority date	Jun 24, 2022
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

A terminal unit includes an internal terminal for connecting to an inner conductor of a shield cable, a dielectric member for retaining the internal terminal, and an external terminal for connecting to an external conductor. The terminal unit further includes a conductive impedance adjustment member formed as a separate body from the internal terminal and the external terminal. The impedance adjustment member includes an adjustment section that is disposed at a position that is between the external terminal and the internal terminal and that is a position able to adjust an impedance of a press-fit portion.

First claim

What is claimed is:

1 . A terminal unit for mounting to a shield cable including at least one inner conductor and an external conductor that shields the at least one inner conductor, the terminal unit comprising:
at least one internal terminal for connecting to the at least one inner conductor; a dielectric member that retains the internal terminal; an external terminal for connecting to the external conductor and that houses the internal terminal; and a conductive impedance adjustment member formed as a separate body from the internal terminal and the external terminal, wherein:
the internal terminal includes a press-fit portion for press-fitting onto the inner conductor;
the impedance adjustment member includes an adjustment section disposed at a position that is between the external terminal and the internal terminal that is a position able to adjust impedance of the press-fit portion;
the external terminal includes a main body that houses the internal terminal;
an opening is formed in the main body such that an internal space of the main body is open toward a rear side;
the adjustment section includes a lid portion having a plate thickness direction facing in a direction intersecting with a plane perpendicular to a front-rear direction, with the lid portion being disposed so as to narrow the opening;
the lid portion includes a pair of side plate portions disposed so as to sandwich the inner conductor; and
a pass through portion is formed between the pair of side plate portions to allow the inner conductor to pass through in the front-rear direction, with the pass through portion open in one direction perpendicular to the front-rear direction.

2 . The terminal unit of claim 1 , wherein:
the lid portion includes:
an upper plate portion coupling the pair of side plate portions together.

3 . The terminal unit of claim 1 , wherein the adjustment section includes a front-rear direction extension portion having a plate thickness direction facing in a direction along a plane perpendicular to a front-rear direction and extending in the front-rear direction.

4 . The terminal unit of claim 3 , wherein the front-rear direction extension portion includes:
a pair of opposing plate portions opposing each other so as to sandwich the internal terminal; and a coupling plate portion that couples the pair of opposing plate portions together.

5 . The terminal unit of claim 1 , wherein the impedance adjustment member and the external terminal make contact with each other and are electrically connected together.

6 . The terminal unit of claim 5 , wherein contact between the impedance adjustment member and the external terminal is realized through projection portions formed at at least one of the impedance adjustment member or the external terminal.

7 . The terminal unit of claim 1 , wherein:
the impedance adjustment member is disposed at an outer face of the dielectric member; and a placement indentation for placement of the impedance adjustment member is formed at the outer face of the dielectric member.

8 . The terminal unit of claim 1 , wherein:
the terminal unit further comprises a conductive sleeve disposed at an outer side of an insulating cover that covers the inner conductor; and the sleeve and the impedance adjustment member make contact with each other.

9 . The terminal unit of claim 8 , wherein the sleeve is formed by a machined component, a die-cast component, or an injection molded body.

10 . The terminal unit of claim 8 , wherein contact between the sleeve and the impedance adjustment member is press contact.

11 . The terminal unit of claim 1 , wherein:
the terminal unit includes a conductive sleeve disposed at an outer side of an insulating cover that covers the inner conductor; and the dielectric member includes an entry portion disposed inside the sleeve.

12 . The terminal unit of claim 11 , wherein the entry portion is formed in a tubular shape so as to surround the inner conductor.

13 . The terminal unit of claim 6 , wherein:
the projection portion is formed at the external terminal; and the external terminal includes a resilient support portion that resiliently supports the projection portion.

14 . A terminal unit for mounting to a shield cable including at least one inner conductor and an external conductor that shields the at least one inner conductor, the terminal unit comprising:
at least one internal terminal for connecting to the at least one inner conductor; a dielectric member that retains the internal terminal; an external terminal for connecting to the external conductor and that houses the internal terminal; and a conductive impedance adjustment member formed as a separate body from the internal terminal and the external terminal, wherein:
the internal terminal includes a press-fit portion for press-fitting onto the inner conductor;
the impedance adjustment member includes an adjustment section disposed at a position that is between the external terminal and the internal terminal that is a position able to adjust impedance of the press-fit portion;
the adjustment section includes a front-rear direction extension portion having a plate thickness direction facing in a direction along a plane perpendicular to a front-rear direction and extending in the front-rear direction;
the front-rear direction extension portion includes:
a pair of opposing plate portions opposing each other so as to sandwich the internal terminal;
a coupling plate portion that couples the pair of opposing plate portions together; and
the three plate portions of the pair of opposing plate portions and the coupling plate portion each contact the external terminal.

15 . The terminal unit of claim 14 , wherein contact between each of the three plate portions and the external terminal is realized through projection portions formed at at least one of the front-rear direction extension portion or the external terminal.

16 . The terminal unit of claim 14 , wherein contact between each of the three plate portions and the external terminal is realized through projection portions formed at the external terminal.

17 . A terminal unit for mounting to a shield cable including at least one inner conductor and an external conductor that shields the at least one inner conductor, the terminal unit comprising:
at least one internal terminal for connecting to the at least one inner conductor; a dielectric member that retains the internal terminal; an external terminal for connecting to the external conductor and that houses the internal terminal; and a conductive impedance adjustment member formed as a separate body from the internal terminal and the external terminal, wherein:
the internal terminal includes a press-fit portion for press-fitting onto the inner conductor;
the impedance adjustment member includes an adjustment section disposed at a position that is between the external terminal and the internal terminal that is a position able to adjust impedance of the press-fit portion;
the terminal unit further comprises a conductive sleeve disposed at an outer side of an insulating cover that covers the inner conductor;
the sleeve and the impedance adjustment member make contact with each other;
contact between the sleeve and the impedance adjustment member is press contact; and
the impedance adjustment member includes a biasing portion to bias the sleeve toward the impedance adjustment member.

18 . A terminal unit for mounting to a shield cable including at least one inner conductor and an

Assignees

• Iriso Electronics Co Ltd

Inventors

• Noguchi Daisuke
• Arai Takayuki
• Yukutake Hiroaki
• Riku Kazuya
• Kiryu Koichi

Classifications

• H01R13/6474 Primary

  by variation of conductive properties, e.g. by dimension variations · CPC title

• H01R13/6582

  with resilient means for engaging mating connector · CPC title

• H01R4/184

  comprising a U-shaped wire-receiving portion · CPC title

• H01R13/6593 Primary

  the shield being composed of different pieces · CPC title

• H01R13/6597

  the conductive member being a contact of the connector · CPC title