Coaxial connector having inclined surface on tip end side of shell

Patent metadata

Field	Value
Publication number	US-11626701-B2
Application number	US-202217686252-A
Country	US
Kind code	B2
Filing date	Mar 3, 2022
Priority date	Mar 5, 2021
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

The present invention provides a coaxial connector that realizes a high frequency signal flowing through a contact in a high frequency band. A coaxial connector includes a three-point contact, a housing including a first and a second connection base, and a shell including a cylindrical portion accommodating the first connection base and an extension portion covering one opening of the cylindrical portion with a bottom plate piece and accommodating the second connection base. The bottom plate piece includes an inclined surface having a higher side on the base end portion of the metal plate and a lower side on the tip end side of the metal plate. The distance between the metal plate of the contact and the bottom surface of the shell which are isolated by an insulating material of the housing is configured to become identical between the tip end side and the base end side of the contact.

First claim

What is claimed is:

1. A coaxial connector configured on an end of a coaxial cable including a central conductor, a dielectric surrounding the central conductor, an external conductor that covers the dielectric, and an insulating sheath that clads the external conductor, the coaxial connector comprising:
a contact including a strip-shaped metal plate disposed along an axial direction of the coaxial cable, and capable of being connected to a cylindrical mating contact, the contact including an installation surface on a base end side of the strip-shaped metal plate which is contactable with the central conductor, and a pair of fixed terminals and a movable terminal, the terminals being erected from a tip end side of the strip-shaped metal plate and being capable of externally contacting the mating contact by three-point contact;
a housing made of an insulating material including a first connection base and a second connection base, the first connection base including an accommodation space in which one surface side is open such that the mating contact is insertable and the pair of fixed terminals and the movable terminal are disposed inside, the second connection base partially protruding from the first connection base; and
a conductive shell including a cylindrical portion that is open to the one surface side and is provided to surround the first connection base, and an extension portion at least including a gutter-shaped that is coupled to the cylindrical portion and is capable of accommodating the second connection base therein,
wherein the extension portion of the shell includes a bottom plate piece that covers an opening of the cylindrical portion on one other surface of the housing so as to accommodate the first connection base in the cylindrical portion, and the bottom plate piece includes an inclined surface having a higher side covering the base end side of the strip-shaped metal plate and a lower side covering the tip end side of the strip-shaped metal plate.

2. The coaxial connector according to claim 1 , wherein
the bottom plate piece includes a bottom surface of the shell, and a distance between the metal plate of the contact and the bottom surface of the shell which are isolated by the insulating material of the housing becomes identical between the higher side and the lower side.

3. The coaxial connector according to claim 1 , wherein
the bottom plate piece includes a bottom surface of the shell, and a difference in distance between the metal plate of the contact and the bottom surface of the shell which are isolated by the insulating material of the housing is small between the higher side and the lower side.

4. The coaxial connector according to claim 1 , wherein
the pair of fixed terminals are located at a set of vertices among vertices of a virtual equilateral triangle inscribed in the mating contact, and
the movable terminal is located at the other vertex of the virtual equilateral triangle, and is disposed in a state of facing an intermediate portion of the pair of fixed terminals.

5. The coaxial connector according to claim 1 , wherein
the contact is molded integrally with the housing, and the contact includes at least:
an installation surface in which a base end of the metal plate is exposed on a predetermined surface of the second connection base, the installation surface being capable of coming into contact with the central conductor; and
contact edges of the pair of fixed terminals, the contact edges being exposed to the accommodation space and capable of coming into contact with the mating contact.

6. The coaxial connector according to claim 1 , further comprising:
a crimp housing including a slot that is notched so as to be capable of pressing an outer periphery of the central conductor and capable of being inserted from an opening side of the accommodation space toward a predetermined portion of the second connection base, wherein
the extension portion of the shell includes
a pair of first barrels capable of pressing the crimp housing against the second connection base, and
a pair of second barrels capable of crimping the external conductor.

Assignees

• Jst Mfg Co Ltd

Inventors

• Koga Shinichi
• Otsu Akihiko

Classifications

• H01R13/46

  Bases; Cases · CPC title

• H01R24/40 Primary

  specially adapted for high frequency · CPC title

• H01R9/0518

  Connection to outer conductor by crimping or by crimping ferrule · CPC title

• H01R13/02

  Contact members · CPC title

• H01R2103/00

  Two poles · CPC title