Electrical connector system

Details Electrical connector system Electrical connector system

1999-02-03

2001-09-04

Paumen, Gary (Department: 2833)

Electrical connectors

With vitreous-type envelope

Having bayonet-coupling contact

C439S404000

Reexamination Certificate

active

06283793

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Filed of the Invention
The present invention relates to an electrical connector system consisting of a pair of electrical connectors for connecting a pair of electrical cables.
2. Description of the Related Art
Japanese UM patent application Kokoku No. 8-9899 discloses an electrical connector system consisting of male and female connectors each comprising a connector housing, a male or female terminal unit provided in the housing, and a retainer provided in the housing, respectively.
As
FIG. 20
shows, the male terminal unit
130
is made by providing an insulation block
134
for supporting a male terminal
133
in the tubular section
132
of a shield member
131
and crimping a pair of press-connection tabs
136
and a pair of outer sheath press-connection tabs
140
on the outer conductor (meshed or wounded shield)
139
and the outer sheath
141
of a shield cable
137
, respectively, to connect under pressure the inner conductor
142
of the shield cable
137
to the press-connection section
143
of the male terminal
133
.
Also, the female terminal unit is made by providing an insulation block with a female terminal in the shield tubular section of a shield member, crimping a pair of shield press-connection tabs and a pair of outer sheath press-connection tabs on the outer conductor and the outer sheath of a shield cable, respectively, to connect under pressure the inner conductor of the shield cable to the press-connection section of the female terminal.
The male and female connectors are plugged into each other by fitting the fitting section of the female connector to the fitting cavity of the male connector and inserting the shield tubular section of the female connector into the shield tubular section
132
of the male connector to bring the male and female shield members into contact with each other, and engaging the male and female lock members.
As
FIG. 21
shows, the shield cable
137
comprises a pair of core wires
145
each having a plurality of inner conductors
142
provided with an insulation layer
144
, an outer conductor
139
covering the core wires
145
, and an outer sheath
141
covering the outer conductor
139
.
In the above conventional electrical connector, however, the inner conductor
142
of the shield cable
137
is not connected to the press-connection section
133
of the male terminal
133
so that if the shield cable
137
receives a pull, the inner conductor
142
is separated from the press-connection tabs
143
, making the connection unreliable.
The above shield cable has various cross-sections and the core wires
145
is so close to the outer conductor
139
that the cutting blade of an automatic machine does not work. If the cutting amount is too small, the outer sheath
141
and conductor
139
cannot be stripped. If the cutting amount is too large, the outer conductor
139
and/or the core wire
142
is damaged. Thus, setting a proper cutting amount has been too difficult to provide an automatic termination operation.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the invention to provide a reliable electrical connector having a stable press-connection even if the shield cable is pulled.
According to an aspect of the invention, there is provided an electrical connector comprises a terminal unit made by providing a holding block with an inner conductor receiving channel having an engaging shoulder and placing the holding block on the insulation block provided in the shield member such that the core wire in the inner conductor receiving channel is connected under pressure to the press-connection section of a terminal.
Since the core wires of a cable is held at the engaging shoulder, if the cable is pulled, no force is applied to the press-connection portion of the cable, thus stabilizing the pressure-connection and providing a reliable electrical connector.
According to another aspect of the invention there is provided an electrical connector system for a pair of cables comprising a male connector comprising a male connector housing and a male terminal unit provided in the male connector housing and having a male terminal and a female connector comprising a female connector housing and a female terminal unit provided in the female connector housing and having a female terminal; the male terminal unit comprising a male shield member; a male insulation block provided in the male shield member; and a male holding block with a male inner conductor receiving channel having an engaging shoulder, the male holding block being placed on the male insulation block such that core wires in the male inner conductor receiving channel is connected under pressure to a press-connection portion of the male terminal; and the female terminal unit comprising a female shield member; a female insulation block provided in the female shield member; and a female holding block with a female inner conductor receiving channel having an engaging shoulder, the female holding block being placed on the female insulation block such that core wires in the female inner conductor receiving channel is connected under pressure to a press-connection portion of the female terminal.
Since the core wires of a pair of cables are held at the engaging shoulders in the male and female connectors, respectively, if the cables are pulled, no force is applied to the press-connection portion of the cables, thus stabilizing the press-connection and providing a reliable electrical connector system.
According to still another aspect of the invention there is provided an electrical connector wherein the shield member comprises a shield tubular section for accommodating the insulation block and a holding block shield section for accommodating the holding block; the holding block shield section comprising a pair of opposing shield plates having lock unit made such that when the holding block is inserted, the shield plates first are flexed outwardly and then returned to lock the holding block to the shield plates.
When the holding block is inserted in the holding block shield section, the shield plates are flexed outwardly by the lock unit and then return to make a lock, thus facilitating the assembling.
According to yet another aspect of the invention there is provided an electrical connector which further comprising a shield cover provided to cover the holding block locked to the holding block shield section.
With such a structure as defined above, the terminal is shielded completely.
According to another aspect of the invention there is provided an electrical connector system comprising a pair of electrical connectors each comprising a connector housing; a terminal unit provided in the connector housing; a terminal provided in the terminal unit. One of the electrical connectors is made of the surface-mounting type. The terminal unit of the other electrical connector comprising a shield member; an insulation block provided in the shield member; and a holding block with an inner conductor receiving channel having an engaging shoulder, the holding block being placed on the insulation block such that a core wire in the inner conductor receiving channel is connected under pressure to a press-connection portion of the terminal.
One of the connectors can be mounted on a board. Since the engaging shoulder is provided in the other connector, if a pull is applied to the cable, no force is applied to the press-connection portion of the cable, thus stabilizing the press-connection and providing a reliable electrical connector.
According to still another aspect of the invention there is provided an electrical connector wherein the engaging shoulder is made by bending the inner conductor receiving channel.
In the above structure the engaging shoulder is made with a curved channel.
According to yet another aspect of the invention there is provided an electrical connector wherein the engaging shoulder comprises a bottom surface and a vertical surface extending at right angles with the bottom surface.
In the above structure the engaging shoulder is made with a b

Affiliated with

Also associated with

Rating

Electrical connector system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrical connector system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical connector system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2517187